[PATCH 0/3] ARC atomics support updates
by Vineet Gupta
Hi,
This fixes ARC port to support configs lacking llock/scond using kernel
assisted cmpxchg.
Thx,
-Vineet
Vineet Gupta (3):
NPTL/ARC: implement __arch_exchange_32_acq using native EX
ARC: introduce explicit support for atomics
NPTL/ARC: provide a kernel assisted atomic cmpxchg
extra/Configs/Config.arc | 8 +++++
libc/sysdeps/linux/arc/bits/atomic.h | 61 ++++++++++++++++++++++++++++++++++--
2 files changed, 67 insertions(+), 2 deletions(-)
--
2.7.4
8 years
- 2
- 4
[PATCH] ARC: string: handle gcc 6.x macro changes
by Vineet Gupta
In gcc 6.x cleanup, the macros got renamed.
(Need to support the old toggle for some more time)
Signed-off-by: Vineet Gupta <vgupta(a)synopsys.com>
---
libc/string/arc/arcv2/memcpy.S | 2 +-
libc/string/arc/arcv2/memset.S | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/libc/string/arc/arcv2/memcpy.S b/libc/string/arc/arcv2/memcpy.S
index 7573daf51acb..ba29e8790721 100644
--- a/libc/string/arc/arcv2/memcpy.S
+++ b/libc/string/arc/arcv2/memcpy.S
@@ -23,7 +23,7 @@
# define EXTRACT_2(RX,RY,IMM) lsr RX, RY, 0x08
#endif
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
# define PREFETCH_READ(RX) prefetch [RX, 56]
# define PREFETCH_WRITE(RX) prefetchw [RX, 64]
# define LOADX(DST,RX) ldd.ab DST, [RX, 8]
diff --git a/libc/string/arc/arcv2/memset.S b/libc/string/arc/arcv2/memset.S
index 0918d377462c..343cfaf81c6d 100644
--- a/libc/string/arc/arcv2/memset.S
+++ b/libc/string/arc/arcv2/memset.S
@@ -52,7 +52,7 @@ ENTRY(memset)
lpnz @.Lset64bytes
;; LOOP START
PREWRITE(r3, 64) ;Prefetch the next write location
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
@@ -85,7 +85,7 @@ ENTRY(memset)
lpnz .Lset32bytes
;; LOOP START
prefetchw [r3, 32] ;Prefetch the next write location
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
--
2.7.4
8 years
- 2
- 1
uClibc-ng - small C library for embedded systems branch master updated. v1.0.19-11-gb985fa0
by wbx＠helium.openadk.org
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "uClibc-ng - small C library for embedded systems".
The branch, master has been updated
via b985fa069187e4c5a7ee84213d9fbead2f219ce5 (commit)
via 17ea4f9622a80cc8717beeefe1371ccbcd501fe3 (commit)
via 0ef881ce9568e1c2e98351fdc067bebbc8c4696a (commit)
via f6cfc2129c6902410619f6cba56022af2977b6a3 (commit)
from a9a2380cf01cdae519fdaf8ab021d486c8917e43 (commit)
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- Log -----------------------------------------------------------------
commit b985fa069187e4c5a7ee84213d9fbead2f219ce5
Author: Vineet Gupta <Vineet.Gupta1(a)synopsys.com>
Date: Mon Nov 7 16:31:40 2016 -0800
NPTL/ARC: provide a kernel assisted atomic cmpxchg
For hardware configurations lacking LLOCK/SCOND (say ARC750),
use a syscall to atomically do the cmpxchg.
This is costly and painful, but really the only way out.
Note that kenrel only guarantees this to work in a UP configuraion
Reported-by: Avinash Patil <avinashp(a)quantenna.com>
Signed-off-by: Vineet Gupta <vgupta(a)synopsys.com>
commit 17ea4f9622a80cc8717beeefe1371ccbcd501fe3
Author: Vineet Gupta <Vineet.Gupta1(a)synopsys.com>
Date: Mon Nov 7 16:31:39 2016 -0800
ARC: introduce explicit support for atomics
Signed-off-by: Vineet Gupta <vgupta(a)synopsys.com>
commit 0ef881ce9568e1c2e98351fdc067bebbc8c4696a
Author: Vineet Gupta <Vineet.Gupta1(a)synopsys.com>
Date: Mon Nov 7 16:31:38 2016 -0800
NPTL/ARC: implement __arch_exchange_32_acq using native EX
ARC EX instruction maps directly to this primitive, thus helps elide the
llock/scond based retry loop where possible.
Signed-off-by: Vineet Gupta <vgupta(a)synopsys.com>
commit f6cfc2129c6902410619f6cba56022af2977b6a3
Author: Vineet Gupta <Vineet.Gupta1(a)synopsys.com>
Date: Wed Nov 9 16:03:33 2016 -0800
ARC: string: handle gcc 6.x macro changes
In gcc 6.x cleanup, the macros got renamed.
(Need to support the old toggle for some more time)
Signed-off-by: Vineet Gupta <vgupta(a)synopsys.com>
-----------------------------------------------------------------------
Summary of changes:
extra/Configs/Config.arc | 8 +++++
libc/string/arc/arcv2/memcpy.S | 2 +-
libc/string/arc/arcv2/memset.S | 4 +--
libc/sysdeps/linux/arc/bits/atomic.h | 61 ++++++++++++++++++++++++++++++++++--
4 files changed, 70 insertions(+), 5 deletions(-)
diff --git a/extra/Configs/Config.arc b/extra/Configs/Config.arc
index 0c0bc71..c263dbf 100644
--- a/extra/Configs/Config.arc
+++ b/extra/Configs/Config.arc
@@ -28,6 +28,14 @@ config CONFIG_ARC_CPU_HS
endchoice
+config CONFIG_ARC_HAS_ATOMICS
+ bool "Support for LLOCK/SCOND instructions"
+ default y
+ help
+ LLOCK/SCOND instructions are needed to implement atomic r-m-w
+ Otherwise libc needs kernel assisted atomic cmpxchg available
+ since v4.9 kernel
+
choice
prompt "MMU Page Size"
default CONFIG_ARC_PAGE_SIZE_8K
diff --git a/libc/string/arc/arcv2/memcpy.S b/libc/string/arc/arcv2/memcpy.S
index 7573daf..ba29e87 100644
--- a/libc/string/arc/arcv2/memcpy.S
+++ b/libc/string/arc/arcv2/memcpy.S
@@ -23,7 +23,7 @@
# define EXTRACT_2(RX,RY,IMM) lsr RX, RY, 0x08
#endif
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
# define PREFETCH_READ(RX) prefetch [RX, 56]
# define PREFETCH_WRITE(RX) prefetchw [RX, 64]
# define LOADX(DST,RX) ldd.ab DST, [RX, 8]
diff --git a/libc/string/arc/arcv2/memset.S b/libc/string/arc/arcv2/memset.S
index 0918d37..343cfaf 100644
--- a/libc/string/arc/arcv2/memset.S
+++ b/libc/string/arc/arcv2/memset.S
@@ -52,7 +52,7 @@ ENTRY(memset)
lpnz @.Lset64bytes
;; LOOP START
PREWRITE(r3, 64) ;Prefetch the next write location
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
@@ -85,7 +85,7 @@ ENTRY(memset)
lpnz .Lset32bytes
;; LOOP START
prefetchw [r3, 32] ;Prefetch the next write location
-#ifdef __LL64__
+#if defined(__LL64__) || defined(__ARC_LL64__)
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
std.ab r4, [r3, 8]
diff --git a/libc/sysdeps/linux/arc/bits/atomic.h b/libc/sysdeps/linux/arc/bits/atomic.h
index 1fdc83f..5878609 100644
--- a/libc/sysdeps/linux/arc/bits/atomic.h
+++ b/libc/sysdeps/linux/arc/bits/atomic.h
@@ -38,6 +38,11 @@ void __arc_link_error (void);
#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
({ __arc_link_error (); oldval; })
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+ ({ __arc_link_error (); oldval; })
+
+#ifdef __CONFIG_ARC_HAS_ATOMICS__
+
#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
({ \
__typeof(oldval) prev; \
@@ -56,5 +61,57 @@ void __arc_link_error (void);
prev; \
})
-#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
- ({ __arc_link_error (); oldval; })
+#else
+
+#ifndef __NR_arc_usr_cmpxchg
+#error "__NR_arc_usr_cmpxchg missing: Please upgrade to kernel 4.9+ headers"
+#endif
+
+/* With lack of hardware assist, use kernel to do the atomic operation
+ This will only work in a UP configuration
+ */
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+ ({ \
+ /* opecode INTERNAL_SYSCALL as it lacks cc clobber */ \
+ register int __ret __asm__("r0") = (int)(mem); \
+ register int __a1 __asm__("r1") = (int)(oldval); \
+ register int __a2 __asm__("r2") = (int)(newval); \
+ register int _sys_num __asm__("r8") = __NR_arc_usr_cmpxchg; \
+ \
+ __asm__ volatile ( \
+ ARC_TRAP_INSN \
+ : "+r" (__ret) \
+ : "r"(_sys_num), "r"(__ret), "r"(__a1), "r"(__a2) \
+ : "memory", "cc"); \
+ \
+ /* syscall returns previous value */ \
+ /* Z bit is set if cmpxchg succeeded (we don't use that yet) */ \
+ \
+ (__typeof(oldval)) __ret; \
+ })
+
+#endif
+
+/* Store NEWVALUE in *MEM and return the old value.
+ Atomic EX is present in all configurations
+ */
+
+#define __arch_exchange_32_acq(mem, newval) \
+ ({ \
+ __typeof__(*(mem)) val = newval; \
+ \
+ __asm__ __volatile__( \
+ "ex %0, [%1]" \
+ : "+r" (val) \
+ : "r" (mem) \
+ : "memory" ); \
+ \
+ val; \
+ })
+
+#define atomic_exchange_acq(mem, newval) \
+ ({ \
+ if (sizeof(*(mem)) != 4) \
+ abort(); \
+ __arch_exchange_32_acq(mem, newval); \
+ })
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uClibc-ng - small C library for embedded systems
8 years
- 1
- 0
uClibc-ng - small C library for embedded systems branch master updated. v1.0.19-7-ga9a2380
by wbx＠helium.openadk.org
This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
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- Log -----------------------------------------------------------------
commit a9a2380cf01cdae519fdaf8ab021d486c8917e43
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Thu Nov 10 02:26:09 2016 +0100
nptl: add pthread_getname_np/pthread_setname_np from GNU libc
These functions are used by firefox for example.
Tested with running firefox on x86 system.
-----------------------------------------------------------------------
Summary of changes:
libc/sysdeps/linux/common/not-cancel.h | 2 +-
libpthread/nptl/pthread_getname.c | 69 +++++++++++++++++++++++++++++++
libpthread/nptl/pthread_setname.c | 63 ++++++++++++++++++++++++++++
libpthread/nptl/sysdeps/pthread/pthread.h | 10 +++++
4 files changed, 143 insertions(+), 1 deletion(-)
create mode 100644 libpthread/nptl/pthread_getname.c
create mode 100644 libpthread/nptl/pthread_setname.c
diff --git a/libc/sysdeps/linux/common/not-cancel.h b/libc/sysdeps/linux/common/not-cancel.h
index 08c544b..9d15884 100644
--- a/libc/sysdeps/linux/common/not-cancel.h
+++ b/libc/sysdeps/linux/common/not-cancel.h
@@ -70,7 +70,7 @@ extern int __openat64_nocancel (int fd, const char *fname, int oflag,
#define read_not_cancel(fd, buf, n) \
INLINE_SYSCALL (read, 3, (fd), (buf), (n))
-#ifdef __UCLIBC_HAS_LINUXTHREADS__
+#ifdef __UCLIBC_HAS_THREADS__
/* Uncancelable write. */
#define write_not_cancel(fd, buf, n) \
INLINE_SYSCALL (write, 3, (fd), (buf), (n))
diff --git a/libpthread/nptl/pthread_getname.c b/libpthread/nptl/pthread_getname.c
new file mode 100644
index 0000000..862c8c7
--- /dev/null
+++ b/libpthread/nptl/pthread_getname.c
@@ -0,0 +1,69 @@
+/* pthread_getname_np -- Get thread name. Linux version
+ Copyright (C) 2010-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthreadP.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/prctl.h>
+
+#include <not-cancel.h>
+
+
+int
+pthread_getname_np (pthread_t th, char *buf, size_t len)
+{
+ const struct pthread *pd = (const struct pthread *) th;
+
+ /* Unfortunately the kernel headers do not export the TASK_COMM_LEN
+ macro. So we have to define it here. */
+#define TASK_COMM_LEN 16
+ if (len < TASK_COMM_LEN)
+ return ERANGE;
+
+ if (pd == THREAD_SELF)
+ return prctl (PR_GET_NAME, buf) ? errno : 0;
+
+#define FMT "/proc/self/task/%u/comm"
+ char fname[sizeof (FMT) + 8];
+ sprintf (fname, FMT, (unsigned int) pd->tid);
+
+ int fd = open_not_cancel_2 (fname, O_RDONLY);
+ if (fd == -1)
+ return errno;
+
+ int res = 0;
+ ssize_t n = TEMP_FAILURE_RETRY (read_not_cancel (fd, buf, len));
+ if (n < 0)
+ res = errno;
+ else
+ {
+ if (buf[n - 1] == '\n')
+ buf[n - 1] = '\0';
+ else if (n == len)
+ res = ERANGE;
+ else
+ buf[n] = '\0';
+ }
+
+ close_not_cancel_no_status (fd);
+
+ return res;
+}
diff --git a/libpthread/nptl/pthread_setname.c b/libpthread/nptl/pthread_setname.c
new file mode 100644
index 0000000..6c5e1d6
--- /dev/null
+++ b/libpthread/nptl/pthread_setname.c
@@ -0,0 +1,63 @@
+/* pthread_setname_np -- Set thread name. Linux version
+ Copyright (C) 2010-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthreadP.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/prctl.h>
+
+#include <not-cancel.h>
+
+
+int
+pthread_setname_np (pthread_t th, const char *name)
+{
+ const struct pthread *pd = (const struct pthread *) th;
+
+ /* Unfortunately the kernel headers do not export the TASK_COMM_LEN
+ macro. So we have to define it here. */
+#define TASK_COMM_LEN 16
+ size_t name_len = strlen (name);
+ if (name_len >= TASK_COMM_LEN)
+ return ERANGE;
+
+ if (pd == THREAD_SELF)
+ return prctl (PR_SET_NAME, name) ? errno : 0;
+
+#define FMT "/proc/self/task/%u/comm"
+ char fname[sizeof (FMT) + 8];
+ sprintf (fname, FMT, (unsigned int) pd->tid);
+
+ int fd = open_not_cancel_2 (fname, O_RDWR);
+ if (fd == -1)
+ return errno;
+
+ int res = 0;
+ ssize_t n = TEMP_FAILURE_RETRY (write_not_cancel (fd, name, name_len));
+ if (n < 0)
+ res = errno;
+ else if (n != name_len)
+ res = EIO;
+
+ close_not_cancel_no_status (fd);
+
+ return res;
+}
diff --git a/libpthread/nptl/sysdeps/pthread/pthread.h b/libpthread/nptl/sysdeps/pthread/pthread.h
index 4103a06..b2897b3 100644
--- a/libpthread/nptl/sysdeps/pthread/pthread.h
+++ b/libpthread/nptl/sysdeps/pthread/pthread.h
@@ -428,6 +428,16 @@ extern int pthread_getschedparam (pthread_t __target_thread,
extern int pthread_setschedprio (pthread_t __target_thread, int __prio)
__THROW;
+#ifdef __USE_GNU
+/* Get thread name visible in the kernel and its interfaces. */
+extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
+ size_t __buflen)
+ __THROW __nonnull ((2));
+
+/* Set thread name visible in the kernel and its interfaces. */
+extern int pthread_setname_np (pthread_t __target_thread, const char *__name)
+ __THROW __nonnull ((2));
+#endif
#if defined __USE_UNIX98 && defined __UCLIBC_SUSV4_LEGACY__
/* Determine level of concurrency. */
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uClibc-ng - small C library for embedded systems
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uClibc-ng - small C library for embedded systems branch master updated. v1.0.19-6-gb8fcddd
by wbx＠helium.openadk.org
This is an automated email from the git hooks/post-receive script. It was
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commit b8fcdddcbb192fc367ff04bbd753b9deb69b09f3
Author: Waldemar Brodkorb <wbx(a)openadk.org>
Date: Sat May 28 18:12:58 2016 +0200
nios2: sync support with glibc
Only static linking is supported for now.
More debugging and analyzing for ld.so, TLS and NPTL
is required. But at least you can bootup a static
root fileystem in Qemu.
-----------------------------------------------------------------------
Summary of changes:
extra/Configs/Config.in | 1 -
extra/Configs/Config.nios2 | 2 -
include/elf.h | 97 ++++++------
ldso/ldso/nios2/dl-debug.h | 18 +++
ldso/ldso/nios2/dl-inlines.h | 12 ++
ldso/ldso/nios2/dl-startup.h | 34 ++++
ldso/ldso/{xtensa => nios2}/dl-syscalls.h | 0
ldso/ldso/nios2/dl-sysdep.h | 74 +++++++++
ldso/ldso/{or1k => nios2}/elfinterp.c | 74 +++------
ldso/ldso/nios2/resolve.S | 73 +++++++++
libc/sysdeps/linux/nios2/Makefile.arch | 11 +-
libc/sysdeps/linux/nios2/__longjmp.S | 71 ++++-----
.../linux/{xtensa => nios2}/__syscall_error.c | 0
libc/sysdeps/linux/nios2/bits/fcntl.h | 6 +-
libc/sysdeps/linux/nios2/bits/kernel_stat.h | 50 ------
libc/sysdeps/linux/nios2/bits/kernel_types.h | 6 +-
libc/sysdeps/linux/nios2/bits/setjmp.h | 30 +---
libc/sysdeps/linux/nios2/bits/stat.h | 167 --------------------
libc/sysdeps/linux/nios2/bits/syscalls.h | 173 ++++++++++-----------
libc/sysdeps/linux/nios2/bsd-_setjmp.S | 44 ------
libc/sysdeps/linux/nios2/bsd-setjmp.S | 51 ------
libc/sysdeps/linux/nios2/clone.S | 152 ++++++++++--------
libc/sysdeps/linux/nios2/clone.c | 50 ------
libc/sysdeps/linux/nios2/crt1.S | 147 ++++++++++-------
libc/sysdeps/linux/nios2/fpu_control.h | 98 ------------
libc/sysdeps/linux/nios2/jmpbuf-offsets.h | 16 +-
libc/sysdeps/linux/nios2/jmpbuf-unwind.h | 39 ++++-
libc/sysdeps/linux/nios2/setjmp.S | 101 ++++++------
libc/sysdeps/linux/nios2/syscall.c | 47 ------
.../dl-tls.h => libc/sysdeps/linux/nios2/sysdep.h | 26 ++--
libc/sysdeps/linux/nios2/vfork.S | 100 ++++++------
libpthread/nptl/pthread_create.c | 2 +-
.../nptl/sysdeps/{powerpc => nios2}/Makefile.arch | 5 +-
libpthread/nptl/sysdeps/{mips => nios2}/dl-tls.h | 17 +-
libpthread/nptl/sysdeps/{mips => nios2}/libc-tls.c | 12 +-
.../sysdeps/{arm => nios2}/pthread_spin_lock.c | 0
.../{microblaze => nios2}/pthread_spin_trylock.c | 0
.../nptl/sysdeps/{mips => nios2}/pthreaddef.h | 12 +-
.../nptl/sysdeps/{mips => nios2}/tcb-offsets.sym | 5 +-
libpthread/nptl/sysdeps/{mips => nios2}/tls.h | 72 +++++----
.../unix/sysv/linux/{mips => nios2}/Makefile | 4 -
.../sysv/linux/{powerpc => nios2}/Makefile.arch | 8 +-
.../linux/{xtensa => nios2}/bits/pthreadtypes.h | 19 ++-
.../unix/sysv/linux/{sh => nios2}/bits/semaphore.h | 7 +-
.../nptl/sysdeps/unix/sysv/linux/nios2/clone.S | 3 +
.../linux/{microblaze => nios2}/createthread.c | 0
.../sysdeps/unix/sysv/linux/{arm => nios2}/fork.c | 0
.../unix/sysv/linux/{arm => nios2}/lowlevellock.h | 0
.../sysv/linux/{arm => nios2}/pt-gettimeofday.c | 0
.../unix/sysv/linux/{arm => nios2}/pthread_once.c | 0
.../sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h | 140 +++++++++++++++++
.../sysdeps/unix/sysv/linux/{arm => nios2}/vfork.S | 2 +-
utils/ldd.c | 5 +
53 files changed, 979 insertions(+), 1104 deletions(-)
create mode 100644 ldso/ldso/nios2/dl-debug.h
create mode 100644 ldso/ldso/nios2/dl-inlines.h
create mode 100644 ldso/ldso/nios2/dl-startup.h
copy ldso/ldso/{xtensa => nios2}/dl-syscalls.h (100%)
create mode 100644 ldso/ldso/nios2/dl-sysdep.h
copy ldso/ldso/{or1k => nios2}/elfinterp.c (80%)
create mode 100644 ldso/ldso/nios2/resolve.S
copy libc/sysdeps/linux/{xtensa => nios2}/__syscall_error.c (100%)
delete mode 100644 libc/sysdeps/linux/nios2/bits/kernel_stat.h
delete mode 100644 libc/sysdeps/linux/nios2/bits/stat.h
delete mode 100644 libc/sysdeps/linux/nios2/bsd-_setjmp.S
delete mode 100644 libc/sysdeps/linux/nios2/bsd-setjmp.S
delete mode 100644 libc/sysdeps/linux/nios2/clone.c
delete mode 100644 libc/sysdeps/linux/nios2/fpu_control.h
delete mode 100644 libc/sysdeps/linux/nios2/syscall.c
copy libpthread/nptl/sysdeps/microblaze/dl-tls.h => libc/sysdeps/linux/nios2/sysdep.h (64%)
copy libpthread/nptl/sysdeps/{powerpc => nios2}/Makefile.arch (58%)
copy libpthread/nptl/sysdeps/{mips => nios2}/dl-tls.h (73%)
copy libpthread/nptl/sysdeps/{mips => nios2}/libc-tls.c (79%)
copy libpthread/nptl/sysdeps/{arm => nios2}/pthread_spin_lock.c (100%)
copy libpthread/nptl/sysdeps/{microblaze => nios2}/pthread_spin_trylock.c (100%)
copy libpthread/nptl/sysdeps/{mips => nios2}/pthreaddef.h (84%)
copy libpthread/nptl/sysdeps/{mips => nios2}/tcb-offsets.sym (50%)
copy libpthread/nptl/sysdeps/{mips => nios2}/tls.h (73%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{mips => nios2}/Makefile (81%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{powerpc => nios2}/Makefile.arch (71%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{xtensa => nios2}/bits/pthreadtypes.h (89%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{sh => nios2}/bits/semaphore.h (89%)
create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/nios2/clone.S
copy libpthread/nptl/sysdeps/unix/sysv/linux/{microblaze => nios2}/createthread.c (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => nios2}/fork.c (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => nios2}/lowlevellock.h (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => nios2}/pt-gettimeofday.c (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => nios2}/pthread_once.c (100%)
create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => nios2}/vfork.S (95%)
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index cb2d4d1..719218f 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -522,7 +522,6 @@ config UCLIBC_HAS_THREADS_NATIVE
!TARGET_ia64 && \
!TARGET_m68k && \
!TARGET_nds32 && \
- !TARGET_nios2 && \
!TARGET_or1k && \
ARCH_USE_MMU
help
diff --git a/extra/Configs/Config.nios2 b/extra/Configs/Config.nios2
index 2310a46..958607c 100644
--- a/extra/Configs/Config.nios2
+++ b/extra/Configs/Config.nios2
@@ -11,6 +11,4 @@ config FORCE_OPTIONS_FOR_ARCH
bool
default y
select ARCH_LITTLE_ENDIAN
- select ARCH_HAS_NO_MMU
select ARCH_HAS_NO_LDSO
- select HAVE_NO_PIC
diff --git a/include/elf.h b/include/elf.h
index cca3d38..e0937b7 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -3081,53 +3081,56 @@ typedef Elf32_Addr Elf32_Conflict;
/* Andes ELF Version 1.3 and after */
#define E_NDS32_ELF_VER_1_3 0x1
-/* NIOS relocations. */
-#define R_NIOS_NONE 0
-#define R_NIOS_32 1 /* A 32 bit absolute relocation.*/
-#define R_NIOS_LO16_LO5 2 /* A LO-16 5 bit absolute relocation. */
-#define R_NIOS_LO16_HI11 3 /* A LO-16 top 11 bit absolute relocation. */
-#define R_NIOS_HI16_LO5 4 /* A HI-16 5 bit absolute relocation. */
-#define R_NIOS_HI16_HI11 5 /* A HI-16 top 11 bit absolute relocation. */
-#define R_NIOS_PCREL6 6 /* A 6 bit relative relocation. */
-#define R_NIOS_PCREL8 7 /* An 8 bit relative relocation. */
-#define R_NIOS_PCREL11 8 /* An 11 bit relative relocation. */
-#define R_NIOS_16 9 /* A 16 bit absolute relocation. */
-#define R_NIOS_H_LO5 10 /* Low 5-bits of absolute relocation in halfwords. */
-#define R_NIOS_H_HI11 11 /* Top 11 bits of 16-bit absolute relocation in halfwords. */
-#define R_NIOS_H_XLO5 12 /* Low 5 bits of top 16-bits of 32-bit absolute relocation in halfwords. */
-#define R_NIOS_H_XHI11 13 /* Top 11 bits of top 16-bits of 32-bit absolute relocation in halfwords. */
-#define R_NIOS_H_16 14 /* Half-word @h value */
-#define R_NIOS_H_32 15 /* Word @h value */
-#define R_NIOS_GNU_VTINHERIT 200 /* GNU extension to record C++ vtable hierarchy */
-#define R_NIOS_GNU_VTENTRY 201 /* GNU extension to record C++ vtable member usage */
-/* Keep this the last entry. */
-#define R_NIOS_NUM 202
-
-/* NIOS II relocations */
-#define R_NIOS2_NONE 0
-#define R_NIOS2_S16 1
-#define R_NIOS2_U16 2
-#define R_NIOS2_PCREL16 3
-#define R_NIOS2_CALL26 4
-#define R_NIOS2_IMM5 5
-#define R_NIOS2_CACHE_OPX 6
-#define R_NIOS2_IMM6 7
-#define R_NIOS2_IMM8 8
-#define R_NIOS2_HI16 9
-#define R_NIOS2_LO16 10
-#define R_NIOS2_HIADJ16 11
-#define R_NIOS2_BFD_RELOC_32 12
-#define R_NIOS2_BFD_RELOC_16 13
-#define R_NIOS2_BFD_RELOC_8 14
-#define R_NIOS2_GPREL 15
-#define R_NIOS2_GNU_VTINHERIT 16
-#define R_NIOS2_GNU_VTENTRY 17
-#define R_NIOS2_UJMP 18
-#define R_NIOS2_CJMP 19
-#define R_NIOS2_CALLR 20
-#define R_NIOS2_ALIGN 21
-/* Keep this the last entry. */
-#define R_NIOS2_NUM 22
+/* Legal values for d_tag (dynamic entry type). */
+#define DT_NIOS2_GP 0x70000002 /* Address of _gp. */
+
+/* Nios II relocations. */
+#define R_NIOS2_NONE 0 /* No reloc. */
+#define R_NIOS2_S16 1 /* Direct signed 16 bit. */
+#define R_NIOS2_U16 2 /* Direct unsigned 16 bit. */
+#define R_NIOS2_PCREL16 3 /* PC relative 16 bit. */
+#define R_NIOS2_CALL26 4 /* Direct call. */
+#define R_NIOS2_IMM5 5 /* 5 bit constant expression. */
+#define R_NIOS2_CACHE_OPX 6 /* 5 bit expression, shift 22. */
+#define R_NIOS2_IMM6 7 /* 6 bit constant expression. */
+#define R_NIOS2_IMM8 8 /* 8 bit constant expression. */
+#define R_NIOS2_HI16 9 /* High 16 bit. */
+#define R_NIOS2_LO16 10 /* Low 16 bit. */
+#define R_NIOS2_HIADJ16 11 /* High 16 bit, adjusted. */
+#define R_NIOS2_BFD_RELOC_32 12 /* 32 bit symbol value + addend. */
+#define R_NIOS2_BFD_RELOC_16 13 /* 16 bit symbol value + addend. */
+#define R_NIOS2_BFD_RELOC_8 14 /* 8 bit symbol value + addend. */
+#define R_NIOS2_GPREL 15 /* 16 bit GP pointer offset. */
+#define R_NIOS2_GNU_VTINHERIT 16 /* GNU C++ vtable hierarchy. */
+#define R_NIOS2_GNU_VTENTRY 17 /* GNU C++ vtable member usage. */
+#define R_NIOS2_UJMP 18 /* Unconditional branch. */
+#define R_NIOS2_CJMP 19 /* Conditional branch. */
+#define R_NIOS2_CALLR 20 /* Indirect call through register. */
+#define R_NIOS2_ALIGN 21 /* Alignment requirement for linker relaxation. */
+#define R_NIOS2_GOT16 22 /* 16 bit GOT entry. */
+#define R_NIOS2_CALL16 23 /* 16 bit GOT entry for function. */
+#define R_NIOS2_GOTOFF_LO 24 /* %lo of offset to GOT pointer. */
+#define R_NIOS2_GOTOFF_HA 25 /* %hiadj of offset to GOT pointer. */
+#define R_NIOS2_PCREL_LO 26 /* %lo of PC relative offset. */
+#define R_NIOS2_PCREL_HA 27 /* %hiadj of PC relative offset. */
+#define R_NIOS2_TLS_GD16 28 /* 16 bit GOT offset for TLS GD. */
+#define R_NIOS2_TLS_LDM16 29 /* 16 bit GOT offset for TLS LDM. */
+#define R_NIOS2_TLS_LDO16 30 /* 16 bit module relative offset. */
+#define R_NIOS2_TLS_IE16 31 /* 16 bit GOT offset for TLS IE. */
+#define R_NIOS2_TLS_LE16 32 /* 16 bit LE TP-relative offset. */
+#define R_NIOS2_TLS_DTPMOD 33 /* Module number. */
+#define R_NIOS2_TLS_DTPREL 34 /* Module-relative offset. */
+#define R_NIOS2_TLS_TPREL 35 /* TP-relative offset. */
+#define R_NIOS2_COPY 36 /* Copy symbol at runtime. */
+#define R_NIOS2_GLOB_DAT 37 /* Create GOT entry. */
+#define R_NIOS2_JUMP_SLOT 38 /* Create PLT entry. */
+#define R_NIOS2_RELATIVE 39 /* Adjust by program base. */
+#define R_NIOS2_GOTOFF 40 /* 16 bit offset to GOT pointer. */
+#define R_NIOS2_CALL26_NOAT 41 /* Direct call in .noat section. */
+#define R_NIOS2_GOT_LO 42 /* %lo() of GOT entry. */
+#define R_NIOS2_GOT_HA 43 /* %hiadj() of GOT entry. */
+#define R_NIOS2_CALL_LO 44 /* %lo() of function GOT entry. */
+#define R_NIOS2_CALL_HA 45 /* %hiadj() of function GOT entry. */
/* Xtensa-specific declarations */
diff --git a/ldso/ldso/nios2/dl-debug.h b/ldso/ldso/nios2/dl-debug.h
new file mode 100644
index 0000000..1fb596a
--- /dev/null
+++ b/ldso/ldso/nios2/dl-debug.h
@@ -0,0 +1,18 @@
+/* nios2 shared library loader suppport */
+
+static const char * const _dl_reltypes_tab[] =
+ {
+ "R_NIOS2_NONE",
+ "R_NIOS2_BFD_RELOC_32",
+ "R_NIOS2_BFD_RELOC_16",
+ "R_NIOS2_BFD_RELOC_8",
+ "R_NIOS2_GNU_VTINHERIT",
+ "R_NIOS2_GNU_VTENTRY",
+ "R_NIOS2_GOT16",
+ "R_NIOS2_CALL16",
+ "R_NIOS2_JUMP_SLOT",
+ "R_NIOS2_GLOB_DAT",
+ "R_NIOS2_RELATIVE",
+ "R_NIOS2_GOTOFF",
+ "R_NIOS2_COPY",
+ };
diff --git a/ldso/ldso/nios2/dl-inlines.h b/ldso/ldso/nios2/dl-inlines.h
new file mode 100644
index 0000000..7cf7e4a
--- /dev/null
+++ b/ldso/ldso/nios2/dl-inlines.h
@@ -0,0 +1,12 @@
+
+unsigned int
+internal_function
+_dl_nios2_get_gp_value (struct link_map *main_map)
+{
+ ElfW(Dyn) *dyn = main_map->l_ld;
+ for (dyn = main_map->l_ld; dyn->d_tag != DT_NULL; ++dyn)
+ if (dyn->d_tag == DT_NIOS2_GP)
+ return (unsigned int)(dyn->d_un.d_ptr);
+ return 0;
+}
+
diff --git a/ldso/ldso/nios2/dl-startup.h b/ldso/ldso/nios2/dl-startup.h
new file mode 100644
index 0000000..982e555
--- /dev/null
+++ b/ldso/ldso/nios2/dl-startup.h
@@ -0,0 +1,34 @@
+__asm__ ("\
+ .text\n\
+ .globl _start\n\
+ .type _start, %function\n\
+_start:\n\
+ mov r4, sp\n\
+ br _dl_start\n\
+ mov r16, r4\n\
+ jmp r16\n\
+");
+
+/*
+ * Get a pointer to the argv array. On many platforms this can be just
+ * the address of the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
+
+/* The ld.so library requires relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
+static __always_inline
+void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
+ unsigned long symbol_addr, unsigned long load_addr, attribute_unused Elf32_Sym *symtab)
+{
+ switch (ELF_R_TYPE(rpnt->r_info)) {
+ case R_NIOS2_RELATIVE:
+ *reloc_addr = load_addr + rpnt->r_addend;
+ break;
+ default:
+ _dl_exit(1);
+ break;
+ }
+}
diff --git a/ldso/ldso/xtensa/dl-syscalls.h b/ldso/ldso/nios2/dl-syscalls.h
similarity index 100%
copy from ldso/ldso/xtensa/dl-syscalls.h
copy to ldso/ldso/nios2/dl-syscalls.h
diff --git a/ldso/ldso/nios2/dl-sysdep.h b/ldso/ldso/nios2/dl-sysdep.h
new file mode 100644
index 0000000..5ae3ce3
--- /dev/null
+++ b/ldso/ldso/nios2/dl-sysdep.h
@@ -0,0 +1,74 @@
+/* Use reloca */
+#define ELF_USES_RELOCA
+
+#include <elf.h>
+
+/* Initialise the GOT */
+#define INIT_GOT(GOT_BASE,MODULE) \
+do { \
+ GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
+ GOT_BASE[1] = (unsigned long) MODULE; \
+} while(0)
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+
+#define MAGIC1 EM_ALTERA_NIOS2
+#undef MAGIC2
+/* Used for error messages */
+#define ELF_TARGET "nios2"
+
+struct elf_resolve;
+unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
+
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
+ PLT entries should not be allowed to define the value.
+ ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
+ of the main executable's symbols, as for a COPY reloc. */
+#define elf_machine_type_class(type) \
+ ((((type) == R_NIOS2_JUMP_SLOT \
+ || (type) == R_NIOS2_TLS_DTPMOD \
+ || (type) == R_NIOS2_TLS_DTPREL \
+ || (type) == R_NIOS2_TLS_TPREL) * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == R_NIOS2_COPY) * ELF_RTYPE_CLASS_COPY))
+
+/* Return the link-time address of _DYNAMIC. Conveniently, this is the
+ first element of the GOT. */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+ Elf32_Addr *dynamic;
+ int tmp;
+ __asm__ ("nextpc\t%0\n\t"
+ "1: movhi\t%1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
+ "addi\t%1, %1, %%lo(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
+ "add\t%0, %0, %1\n"
+ : "=r" (dynamic), "=r" (tmp));
+ return *dynamic;
+}
+
+/* Return the run-time load address of the shared object. */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+ Elf32_Addr result;
+ int tmp;
+ __asm__ ("nextpc\t%0\n\t"
+ "1: movhi\t%1, %%hiadj(1b)\n\t"
+ "addi\t%1, %1, %%lo(1b)\n\t"
+ "sub\t%0, %0, %1\n"
+ : "=r" (result), "=r" (tmp));
+ return result;
+}
+
+static __always_inline void
+elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr,
+ Elf32_Word relative_count)
+{
+ Elf32_Rel * rpnt = (void *) rel_addr;
+ do {
+ Elf32_Addr *const reloc_addr = (void *) (load_off + (rpnt)->r_offset);
+
+ *reloc_addr += load_off;
+ } while (--relative_count);
+}
+
diff --git a/ldso/ldso/or1k/elfinterp.c b/ldso/ldso/nios2/elfinterp.c
similarity index 80%
copy from ldso/ldso/or1k/elfinterp.c
copy to ldso/ldso/nios2/elfinterp.c
index 928e95b..bdbaa33 100644
--- a/ldso/ldso/or1k/elfinterp.c
+++ b/ldso/ldso/nios2/elfinterp.c
@@ -1,5 +1,4 @@
-/* vi: set sw=4 ts=4: */
-/* OpenRISC 1000 ELF shared library loader suppport
+/* nios2 ELF shared library loader suppport
*
* Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
* David Engel, Hongjiu Lu and Mitch D'Souza
@@ -35,13 +34,6 @@
References to symbols in sharable libraries can be resolved by either
an ELF sharable library or a linux style of shared library. */
-/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
- I ever taken any courses on internals. This program was developed using
- information available through the book "UNIX SYSTEM V RELEASE 4,
- Programmers guide: Ansi C and Programming Support Tools", which did
- a more than adequate job of explaining everything required to get this
- working. */
-
extern int _dl_linux_resolve(void);
unsigned long
@@ -72,20 +64,17 @@ _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
/* Get the address of the GOT entry. */
new_addr = _dl_find_hash(symname, &_dl_loaded_modules->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
if (unlikely(!new_addr)) {
- _dl_dprintf(2, "%s: can't resolve symbol '%s' in lib '%s'.\n",
- _dl_progname, symname, tpnt->libname);
+ _dl_dprintf(2, "%s: Can't resolve symbol '%s'\n", _dl_progname, symname);
_dl_exit(1);
}
#if defined (__SUPPORT_LD_DEBUG__)
- if ((unsigned long)got_addr < 0x40000000) {
- if (_dl_debug_bindings) {
- _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
- if (_dl_debug_detail)
- _dl_dprintf(_dl_debug_file,
- "\tpatched: %x ==> %x @ %x\n",
- *got_addr, new_addr, got_addr);
- }
+ if (_dl_debug_bindings) {
+ _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
+ if (_dl_debug_detail)
+ _dl_dprintf(_dl_debug_file,
+ "\tpatched: %x ==> %x @ %x\n",
+ *got_addr, new_addr, got_addr);
}
if (!_dl_debug_nofixups)
#endif
@@ -159,7 +148,7 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
int symtab_index;
char *symname;
#if defined USE_TLS && USE_TLS
- struct elf_resolve *tls_tpnt;
+ struct elf_resolve *tls_tpnt = NULL;
#endif
struct symbol_ref sym_ref;
ElfW(Addr) *reloc_addr;
@@ -168,10 +157,6 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
ElfW(Addr) old_val;
#endif
- struct unaligned {
- Elf32_Addr x;
- } __attribute__ ((packed, may_alias));
-
reloc_addr = (ElfW(Addr)*)(tpnt->loadaddr + (unsigned long)rpnt->r_offset);
reloc_type = ELF_R_TYPE(rpnt->r_info);
symtab_index = ELF_R_SYM(rpnt->r_info);
@@ -209,41 +194,27 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
#if defined (__SUPPORT_LD_DEBUG__)
if (reloc_addr) {
- old_val = ((struct unaligned *)reloc_addr)->x;
+ old_val = *reloc_addr;
} else {
old_val = 0;
}
#endif
switch (reloc_type) {
- case R_OR1K_NONE:
+ case R_NIOS2_NONE:
break;
- case R_OR1K_8:
- case R_OR1K_16:
- case R_OR1K_32:
- /* Support relocations on mis-aligned offsets. */
- ((struct unaligned *)reloc_addr)->x = symbol_addr +
- rpnt->r_addend;
- break;
-
- case R_OR1K_8_PCREL:
- case R_OR1K_16_PCREL:
- case R_OR1K_32_PCREL:
- case R_OR1K_INSN_REL_26:
+ case R_NIOS2_BFD_RELOC_32:
+ case R_NIOS2_GLOB_DAT:
+ case R_NIOS2_JUMP_SLOT:
*reloc_addr = symbol_addr + rpnt->r_addend;
break;
- case R_OR1K_GLOB_DAT:
- case R_OR1K_JMP_SLOT:
- *reloc_addr = symbol_addr + rpnt->r_addend;
- break;
-/* Handled by elf_machine_relative */
- case R_OR1K_RELATIVE:
+ case R_NIOS2_RELATIVE:
*reloc_addr = (unsigned long)tpnt->loadaddr + rpnt->r_addend;
break;
- case R_OR1K_COPY:
+ case R_NIOS2_COPY:
if (symbol_addr) {
#if defined (__SUPPORT_LD_DEBUG__)
if (_dl_debug_move)
@@ -257,10 +228,6 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
(char *)symbol_addr,
sym_ref.sym->st_size);
}
-#if defined (__SUPPORT_LD_DEBUG__)
- else
- _dl_dprintf(_dl_debug_file, "no symbol_addr to copy !?\n");
-#endif
break;
default:
@@ -270,8 +237,7 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
#if defined (__SUPPORT_LD_DEBUG__)
if (_dl_debug_reloc && _dl_debug_detail)
_dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n",
- old_val, ((struct unaligned *)reloc_addr)->x,
- reloc_addr);
+ old_val, *reloc_addr, reloc_addr);
#endif
return 0;
@@ -282,14 +248,12 @@ _dl_do_lazy_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)
{
int reloc_type;
- int symtab_index;
ElfW(Addr) *reloc_addr;
#if defined (__SUPPORT_LD_DEBUG__)
ElfW(Addr) old_val;
#endif
(void)scope;
- symtab_index = ELF_R_SYM(rpnt->r_info);
(void)strtab;
reloc_addr = (ElfW(Addr)*)(tpnt->loadaddr + rpnt->r_offset);
@@ -300,9 +264,9 @@ _dl_do_lazy_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
#endif
switch (reloc_type) {
- case R_OR1K_NONE:
+ case R_NIOS2_NONE:
break;
- case R_OR1K_JMP_SLOT:
+ case R_NIOS2_JUMP_SLOT:
*reloc_addr += (unsigned long)tpnt->loadaddr;
break;
default:
diff --git a/ldso/ldso/nios2/resolve.S b/ldso/ldso/nios2/resolve.S
new file mode 100644
index 0000000..a71839e
--- /dev/null
+++ b/ldso/ldso/nios2/resolve.S
@@ -0,0 +1,73 @@
+/* PLT trampolines. Nios II version.
+ Copyright (C) 2005-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This code is used in dl-runtime.c to call the `fixup' function
+ and then redirect to the address it returns. */
+
+ .text
+ .align 4
+ .globl _dl_linux_resolver
+ .globl _dl_linux_resolve
+ .type _dl_linux_resolve,@function
+
+_dl_linux_resolve:
+/* The runtime resolver receives the original function arguments in r4
+ through r7, the shared library identifier from GOT[1]? in r14, and the
+ relocation index times four in r15. It updates the corresponding PLT GOT
+ entry so that the PLT entry will transfer control directly to the target
+ in the future, and then transfers control to the target. */
+ /* Save arguments and return address. */
+ subi sp, sp, 28
+ stw r22, 24(sp)
+ stw r8, 20(sp) /* save r8, because this might be a call to mcount */
+ stw r7, 16(sp)
+ stw r6, 12(sp)
+ stw r5, 8(sp)
+ stw r4, 4(sp)
+ stw ra, 0(sp)
+
+ /* Get pointer to linker struct. */
+ mov r4, r14
+
+ /* Get the relocation offset. We're given a multiple of 4 and
+ need a multiple of 12, so multiply by 3. */
+ slli r5, r15, 1
+ add r5, r5, r15
+
+ /* Call the fixup routine. */
+ nextpc r22
+1: movhi r2, %hiadj(_gp_got - 1b)
+ addi r2, r2, %lo(_gp_got - 1b)
+ add r22, r22, r2
+ ldw r2, %call(_dl_linux_resolver)(r22)
+ callr r2
+
+ /* Restore the arguments and return address. */
+ ldw ra, 0(sp)
+ ldw r4, 4(sp)
+ ldw r5, 8(sp)
+ ldw r6, 12(sp)
+ ldw r7, 16(sp)
+ ldw r8, 20(sp)
+ ldw r22, 24(sp)
+ addi sp, sp, 28
+
+ /* Jump to the newly found address. */
+ jmp r2
+
+ .size _dl_linux_resolve, . - _dl_linux_resolve
diff --git a/libc/sysdeps/linux/nios2/Makefile.arch b/libc/sysdeps/linux/nios2/Makefile.arch
index e36e06b..887ce5a 100644
--- a/libc/sysdeps/linux/nios2/Makefile.arch
+++ b/libc/sysdeps/linux/nios2/Makefile.arch
@@ -1,12 +1,5 @@
# Makefile for uClibc
-#
-# Copyright (C) 2000-2005 Erik Andersen <andersen(a)uclibc.org>
-#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-#
-CSRC-y := brk.c syscall.c
-
-SSRC-y := \
- __longjmp.S bsd-_setjmp.S bsd-setjmp.S setjmp.S \
- vfork.S clone.S
+CSRC-y := __syscall_error.c
+SSRC-y := __longjmp.S setjmp.S vfork.S clone.S
diff --git a/libc/sysdeps/linux/nios2/__longjmp.S b/libc/sysdeps/linux/nios2/__longjmp.S
index 7df5997..3f112f1 100644
--- a/libc/sysdeps/linux/nios2/__longjmp.S
+++ b/libc/sysdeps/linux/nios2/__longjmp.S
@@ -1,48 +1,39 @@
-/*
- * libc/sysdeps/linux/nios2/__longjmp.S
- *
- * Copyright (C) 2004,05,06 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- *
- */
+/* longjmp for Nios II.
+ Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#include <features.h>
-#include <jmpbuf-offsets.h>
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
-.globl __longjmp
-.type __longjmp,@function
-.balign 4
+#include <sysdep.h>
+#include <jmpbuf-offsets.h>
-__longjmp:
- /* return value is in r5*/
+ENTRY (__longjmp)
mov r2, r5
-
- /* jmp_buf in r4, restore regs. */
- ldw r16, (JB_REGS+ 0)(r4)
- ldw r17, (JB_REGS+ 4)(r4)
- ldw r18, (JB_REGS+ 8)(r4)
- ldw r19, (JB_REGS+12)(r4)
- ldw r20, (JB_REGS+16)(r4)
- ldw r21, (JB_REGS+20)(r4)
- ldw r22, (JB_REGS+24)(r4)
- ldw r23, (JB_REGS+28)(r4)
-
- ldw ra, JB_PC(r4)
- ldw fp, JB_FP(r4)
- ldw gp, JB_GP(r4)
- ldw sp, JB_SP(r4)
-
-#ifdef __UCLIBC_HAS_FPU__
- RESTORE_FPU r4 JB_FPREGS
-#endif
- /* return to saved RA */
+ ldw r16, (JB_R16*4)(r4)
+ ldw r17, (JB_R17*4)(r4)
+ ldw r18, (JB_R18*4)(r4)
+ ldw r19, (JB_R19*4)(r4)
+ ldw r20, (JB_R20*4)(r4)
+ ldw r21, (JB_R21*4)(r4)
+ ldw r22, (JB_R22*4)(r4)
+ ldw fp, (JB_FP*4)(r4)
+ ldw ra, (JB_RA*4)(r4)
+ ldw sp, (JB_SP*4)(r4)
+
ret
-.size __longjmp,.-__longjmp
+END (__longjmp)
libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/xtensa/__syscall_error.c b/libc/sysdeps/linux/nios2/__syscall_error.c
similarity index 100%
copy from libc/sysdeps/linux/xtensa/__syscall_error.c
copy to libc/sysdeps/linux/nios2/__syscall_error.c
diff --git a/libc/sysdeps/linux/nios2/bits/fcntl.h b/libc/sysdeps/linux/nios2/bits/fcntl.h
index d8386d6..4fe1ee3 100644
--- a/libc/sysdeps/linux/nios2/bits/fcntl.h
+++ b/libc/sysdeps/linux/nios2/bits/fcntl.h
@@ -44,9 +44,9 @@
#define O_ASYNC 020000
#ifdef __USE_GNU
-# define O_DIRECTORY 040000 /* Must be a directory. */
-# define O_NOFOLLOW 0100000 /* Do not follow links. */
-# define O_DIRECT 0200000 /* Direct disk access. */
+# define O_DIRECTORY 0200000 /* Must be a directory. */
+# define O_NOFOLLOW 0400000 /* Do not follow links. */
+# define O_DIRECT 040000 /* Direct disk access. */
# define O_NOATIME 01000000 /* Do not set atime. */
# define O_CLOEXEC 02000000 /* set close_on_exec */
# define O_PATH 010000000 /* Resolve pathname but do not open file. */
diff --git a/libc/sysdeps/linux/nios2/bits/kernel_stat.h b/libc/sysdeps/linux/nios2/bits/kernel_stat.h
deleted file mode 100644
index 99a6cba..0000000
--- a/libc/sysdeps/linux/nios2/bits/kernel_stat.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#ifndef _BITS_STAT_STRUCT_H
-#define _BITS_STAT_STRUCT_H
-
-/* This file provides whatever this particular arch's kernel thinks
- * struct kernel_stat should look like... It turns out each arch has a
- * different opinion on the subject... */
-
-struct kernel_stat {
- unsigned short st_dev;
- unsigned short __pad1;
- unsigned long st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned short __pad2;
- unsigned long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks;
- struct timespec st_atim;
- struct timespec st_mtim;
- struct timespec st_ctim;
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct kernel_stat64 {
- unsigned short st_dev;
- unsigned char __pad0[10];
-#define _HAVE_STAT64___ST_INO
- unsigned long __st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
- unsigned long st_uid;
- unsigned long st_gid;
- unsigned short st_rdev;
- unsigned char __pad3[10];
- long long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __pad4; /* future possible st_blocks high bits */
- struct timespec st_atim;
- struct timespec st_mtim;
- struct timespec st_ctim;
- unsigned long long st_ino;
-};
-
-#endif /* _BITS_STAT_STRUCT_H */
-
diff --git a/libc/sysdeps/linux/nios2/bits/kernel_types.h b/libc/sysdeps/linux/nios2/bits/kernel_types.h
index 004f9c7..5c122b5 100644
--- a/libc/sysdeps/linux/nios2/bits/kernel_types.h
+++ b/libc/sysdeps/linux/nios2/bits/kernel_types.h
@@ -10,10 +10,10 @@
typedef unsigned long __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
-typedef unsigned short __kernel_nlink_t;
+typedef unsigned long __kernel_nlink_t;
typedef long __kernel_off_t;
typedef int __kernel_pid_t;
-typedef unsigned short __kernel_ipc_pid_t;
+typedef int __kernel_ipc_pid_t;
typedef unsigned int __kernel_uid_t;
typedef unsigned int __kernel_gid_t;
typedef unsigned int __kernel_size_t;
@@ -22,6 +22,8 @@ typedef int __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
+typedef int __kernel_timer_t;
+typedef int __kernel_clockid_t;
typedef int __kernel_daddr_t;
typedef char * __kernel_caddr_t;
typedef unsigned short __kernel_uid16_t;
diff --git a/libc/sysdeps/linux/nios2/bits/setjmp.h b/libc/sysdeps/linux/nios2/bits/setjmp.h
index bc6f308..2fbb395 100644
--- a/libc/sysdeps/linux/nios2/bits/setjmp.h
+++ b/libc/sysdeps/linux/nios2/bits/setjmp.h
@@ -1,5 +1,5 @@
-/* Define the machine-dependent type `jmp_buf'. Nios2 version.
- Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc.
+/* Define the machine-dependent type `jmp_buf'. Nios II version.
+ Copyright (C) 1992-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -13,7 +13,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _BITS_SETJMP_H
@@ -23,27 +23,9 @@
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
-typedef struct
-{
- /* Callee-saved registers r16 through r23. */
- unsigned long __regs[8];
+/* Saves r16-r22 (callee-saved, including GOT pointer), fp (frame pointer),
+ ra (return address), and sp (stack pointer). */
- /* Program counter. */
- unsigned long __pc;
-
- /* Stack pointer. */
- unsigned long __sp;
-
- /* The frame pointer. */
- unsigned long __fp;
-
- /* The global pointer. */
- unsigned long __gp;
-
- /* floating point regs, if any */
-#ifdef __UCLIBC_HAS_FPU__
- unsigned long __fpregs[64];
-#endif
-} __jmp_buf[1];
+typedef int __jmp_buf[10];
#endif /* bits/setjmp.h */
diff --git a/libc/sysdeps/linux/nios2/bits/stat.h b/libc/sysdeps/linux/nios2/bits/stat.h
deleted file mode 100644
index 6e3b019..0000000
--- a/libc/sysdeps/linux/nios2/bits/stat.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/* Copyright (C) 1992,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _SYS_STAT_H
-# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
-#endif
-
-/* Versions of the `struct stat' data structure. */
-#define _STAT_VER_LINUX_OLD 1
-#define _STAT_VER_KERNEL 1
-#define _STAT_VER_SVR4 2
-#define _STAT_VER_LINUX 3
-#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */
-
-/* Versions of the `xmknod' interface. */
-#define _MKNOD_VER_LINUX 1
-#define _MKNOD_VER_SVR4 2
-#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
-
-
-struct stat
- {
- __dev_t st_dev; /* Device. */
- unsigned short int __pad1;
-#ifndef __USE_FILE_OFFSET64
- __ino_t st_ino; /* File serial number. */
-#else
- __ino_t __st_ino; /* 32bit file serial number. */
-#endif
- __mode_t st_mode; /* File mode. */
- __nlink_t st_nlink; /* Link count. */
- __uid_t st_uid; /* User ID of the file's owner. */
- __gid_t st_gid; /* Group ID of the file's group.*/
- __dev_t st_rdev; /* Device number, if device. */
- unsigned short int __pad2;
-#ifndef __USE_FILE_OFFSET64
- __off_t st_size; /* Size of file, in bytes. */
-#else
- __off64_t st_size; /* Size of file, in bytes. */
-#endif
- __blksize_t st_blksize; /* Optimal block size for I/O. */
-
-#ifndef __USE_FILE_OFFSET64
- __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
-#else
- __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
-#endif
-#ifdef __USE_MISC
- /* Nanosecond resolution timestamps are stored in a format
- equivalent to 'struct timespec'. This is the type used
- whenever possible but the Unix namespace rules do not allow the
- identifier 'timespec' to appear in the <sys/stat.h> header.
- Therefore we have to handle the use of this header in strictly
- standard-compliant sources special. */
- struct timespec st_atim; /* Time of last access. */
- struct timespec st_mtim; /* Time of last modification. */
- struct timespec st_ctim; /* Time of last status change. */
-# define st_atime st_atim.tv_sec /* Backward compatibility. */
-# define st_mtime st_mtim.tv_sec
-# define st_ctime st_ctim.tv_sec
-#else
- __time_t st_atime; /* Time of last access. */
- unsigned long int st_atimensec; /* Nscecs of last access. */
- __time_t st_mtime; /* Time of last modification. */
- unsigned long int st_mtimensec; /* Nsecs of last modification. */
- __time_t st_ctime; /* Time of last status change. */
- unsigned long int st_ctimensec; /* Nsecs of last status change. */
-#endif
-#ifndef __USE_FILE_OFFSET64
- unsigned long int __unused4;
- unsigned long int __unused5;
-#else
- __ino64_t st_ino; /* File serial number. */
-#endif
- };
-
-#ifdef __USE_LARGEFILE64
-struct stat64
- {
- __dev_t st_dev; /* Device. */
- unsigned int __pad1;
-
- __ino_t __st_ino; /* 32bit file serial number. */
- __mode_t st_mode; /* File mode. */
- __nlink_t st_nlink; /* Link count. */
- __uid_t st_uid; /* User ID of the file's owner. */
- __gid_t st_gid; /* Group ID of the file's group.*/
- __dev_t st_rdev; /* Device number, if device. */
- unsigned int __pad2;
- __off64_t st_size; /* Size of file, in bytes. */
- __blksize_t st_blksize; /* Optimal block size for I/O. */
-
- __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
- /* Nanosecond resolution timestamps are stored in a format
- equivalent to 'struct timespec'. This is the type used
- whenever possible but the Unix namespace rules do not allow the
- identifier 'timespec' to appear in the <sys/stat.h> header.
- Therefore we have to handle the use of this header in strictly
- standard-compliant sources special. */
- struct timespec st_atim; /* Time of last access. */
- struct timespec st_mtim; /* Time of last modification. */
- struct timespec st_ctim; /* Time of last status change. */
-#else
- __time_t st_atime; /* Time of last access. */
- unsigned long int st_atimensec; /* Nscecs of last access. */
- __time_t st_mtime; /* Time of last modification. */
- unsigned long int st_mtimensec; /* Nsecs of last modification. */
- __time_t st_ctime; /* Time of last status change. */
- unsigned long int st_ctimensec; /* Nsecs of last status change. */
-#endif
- __ino64_t st_ino; /* File serial number. */
- };
-#endif
-
-/* Tell code we have these members. */
-#define _STATBUF_ST_BLKSIZE
-#define _STATBUF_ST_RDEV
-/* Nanosecond resolution time values are supported. */
-#define _STATBUF_ST_NSEC
-
-/* Encoding of the file mode. */
-
-#define __S_IFMT 0170000 /* These bits determine file type. */
-
-/* File types. */
-#define __S_IFDIR 0040000 /* Directory. */
-#define __S_IFCHR 0020000 /* Character device. */
-#define __S_IFBLK 0060000 /* Block device. */
-#define __S_IFREG 0100000 /* Regular file. */
-#define __S_IFIFO 0010000 /* FIFO. */
-#define __S_IFLNK 0120000 /* Symbolic link. */
-#define __S_IFSOCK 0140000 /* Socket. */
-
-/* POSIX.1b objects. Note that these macros always evaluate to zero. But
- they do it by enforcing the correct use of the macros. */
-#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
-#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
-#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
-
-/* Protection bits. */
-
-#define __S_ISUID 04000 /* Set user ID on execution. */
-#define __S_ISGID 02000 /* Set group ID on execution. */
-#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
-#define __S_IREAD 0400 /* Read by owner. */
-#define __S_IWRITE 0200 /* Write by owner. */
-#define __S_IEXEC 0100 /* Execute by owner. */
-
-#ifdef __USE_ATFILE
-# define UTIME_NOW ((1l << 30) - 1l)
-# define UTIME_OMIT ((1l << 30) - 2l)
-#endif
diff --git a/libc/sysdeps/linux/nios2/bits/syscalls.h b/libc/sysdeps/linux/nios2/bits/syscalls.h
index 5be5d4d..2b12343 100644
--- a/libc/sysdeps/linux/nios2/bits/syscalls.h
+++ b/libc/sysdeps/linux/nios2/bits/syscalls.h
@@ -4,106 +4,97 @@
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
-#define TRAP_ID_SYSCALL 0
+#ifdef __ASSEMBLER__
-#ifndef __ASSEMBLER__
+#undef DO_CALL
+#define DO_CALL(syscall_name, args) \
+ DOARGS_##args \
+ movi r2, SYS_ify(syscall_name); \
+ trap;
-#include <errno.h>
-
-#define __syscall_return(type, res) \
- do { \
- if (unlikely(INTERNAL_SYSCALL_ERROR_P(res, ))) { \
- __set_errno(INTERNAL_SYSCALL_ERRNO(res, )); \
- res = (unsigned long) -1; \
- } \
- return (type) (res); \
- } while (0)
+#define DOARGS_0 /* nothing */
+#define DOARGS_1 /* nothing */
+#define DOARGS_2 /* nothing */
+#define DOARGS_3 /* nothing */
+#define DOARGS_4 /* nothing */
+#define DOARGS_5 ldw r8, 0(sp);
+#define DOARGS_6 ldw r9, 4(sp); ldw r8, 0(sp);
-#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
-(__extension__ \
- ({ \
- long __res; \
- __asm__ __volatile__ ( \
- "movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \
- "movi r3, %1\n\t" /* __NR_##name */ \
- ASM_ARGS_##nr \
- "trap\n\t" \
- "mov %0, r2\n\t" /* syscall return */ \
- : "=r" (__res) /* %0 */ \
- : "i" (name) /* %1 */ \
- , "i" (TRAP_ID_SYSCALL) /* %2 */ \
- MAP_ARGS_##nr (args) /* %3-%8 */ \
- : "r2" \
- , "r3" \
- CLOB_ARGS_##nr /* Clobbered */ \
- ); \
- __res; \
- }) \
-)
+#else
-#define INTERNAL_SYSCALL_ERROR_P(val, err) \
- ((unsigned long)(val) >= (unsigned long)(-125))
-
-#define ASM_ARGS_0
-#define MAP_ARGS_0()
-#define CLOB_ARGS_0
-
-#define ASM_ARGS_1 \
- "mov r4, %3\n\t"
-#define MAP_ARGS_1(a) \
- , "r" ((long) a)
-#define CLOB_ARGS_1 \
- , "r4"
+#include <errno.h>
-#define ASM_ARGS_2 \
- ASM_ARGS_1 \
- "mov r5, %4\n\t"
-#define MAP_ARGS_2(a, b) \
- MAP_ARGS_1(a) \
- , "r" ((long) b)
-#define CLOB_ARGS_2 \
- CLOB_ARGS_1 \
- , "r5"
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) unsigned int err __attribute__((unused))
-#define ASM_ARGS_3 \
- ASM_ARGS_2 \
- "mov r6, %5\n\t"
-#define MAP_ARGS_3(a, b, c) \
- MAP_ARGS_2(a, b) \
- , "r" ((long) c)
-#define CLOB_ARGS_3 \
- CLOB_ARGS_2 \
- , "r6"
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (unsigned int) (err))
-#define ASM_ARGS_4 \
- ASM_ARGS_3 \
- "mov r7, %6\n\t"
-#define MAP_ARGS_4(a, b, c, d) \
- MAP_ARGS_3(a, b, c) \
- , "r" ((long) d)
-#define CLOB_ARGS_4 \
- CLOB_ARGS_3 \
- , "r7"
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val)
-#define ASM_ARGS_5 \
- ASM_ARGS_4 \
- "mov r8, %7\n\t"
-#define MAP_ARGS_5(a, b, c, d, e) \
- MAP_ARGS_4(a, b, c, d) \
- , "r" ((long) e)
-#define CLOB_ARGS_5 \
- CLOB_ARGS_4 \
- , "r8"
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+ ({ unsigned int _sys_result; \
+ { \
+ LOAD_ARGS_##nr (args) \
+ LOAD_REGS_##nr \
+ register int _r2 __asm__ ("r2") = (int)(name); \
+ register int _sys_err __asm__ ("r7"); \
+ __asm__ volatile ("trap" \
+ : "+r" (_r2), "=r" (_sys_err) \
+ : ASM_ARGS_##nr \
+ : "memory"); \
+ _sys_result = _r2; \
+ err = _sys_err; \
+ } \
+ (int) _sys_result; })
-#define ASM_ARGS_6 \
- ASM_ARGS_5 \
- "mov r9, %8\n\t"
-#define MAP_ARGS_6(a, b, c, d, e, f) \
- MAP_ARGS_5(a, b, c, d, e) \
- , "r" ((long) f)
-#define CLOB_ARGS_6 \
- CLOB_ARGS_5 \
- , "r9"
+#define LOAD_ARGS_0()
+#define LOAD_REGS_0
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(a1) \
+ LOAD_ARGS_0 () \
+ int __arg1 = (int) (a1);
+#define LOAD_REGS_1 \
+ register int _r4 __asm__ ("r4") = __arg1; \
+ LOAD_REGS_0
+#define ASM_ARGS_1 "r" (_r4)
+#define LOAD_ARGS_2(a1, a2) \
+ LOAD_ARGS_1 (a1) \
+ int __arg2 = (int) (a2);
+#define LOAD_REGS_2 \
+ register int _r5 __asm__ ("r5") = __arg2; \
+ LOAD_REGS_1
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (_r5)
+#define LOAD_ARGS_3(a1, a2, a3) \
+ LOAD_ARGS_2 (a1, a2) \
+ int __arg3 = (int) (a3);
+#define LOAD_REGS_3 \
+ register int _r6 __asm__ ("r6") = __arg3; \
+ LOAD_REGS_2
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (_r6)
+#define LOAD_ARGS_4(a1, a2, a3, a4) \
+ LOAD_ARGS_3 (a1, a2, a3) \
+ int __arg4 = (int) (a4);
+#define LOAD_REGS_4 \
+ register int _r7 __asm__ ("r7") = __arg4; \
+ LOAD_REGS_3
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (_r7)
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
+ LOAD_ARGS_4 (a1, a2, a3, a4) \
+ int __arg5 = (int) (a5);
+#define LOAD_REGS_5 \
+ register int _r8 __asm__ ("r8") = __arg5; \
+ LOAD_REGS_4
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (_r8)
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
+ LOAD_ARGS_5 (a1, a2, a3, a4, a5) \
+ int __arg6 = (int) (a6);
+#define LOAD_REGS_6 \
+ register int _r9 __asm__ ("r9") = __arg6; \
+ LOAD_REGS_5
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (_r9)
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
diff --git a/libc/sysdeps/linux/nios2/bsd-_setjmp.S b/libc/sysdeps/linux/nios2/bsd-_setjmp.S
deleted file mode 100644
index e1350f5..0000000
--- a/libc/sysdeps/linux/nios2/bsd-_setjmp.S
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * libc/sysdeps/linux/nios2/bsd-_setjmp.S
- *
- * Copyright (C) 2004,05,06 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- *
- */
-
-#include <features.h>
-#include <jmpbuf-offsets.h>
-
- .globl _setjmp
- .type _setjmp,@function
- .balign 4
-
-_setjmp:
- stw r16, (JB_REGS+ 0)(r4)
- stw r17, (JB_REGS+ 4)(r4)
- stw r18, (JB_REGS+ 8)(r4)
- stw r19, (JB_REGS+12)(r4)
- stw r20, (JB_REGS+16)(r4)
- stw r21, (JB_REGS+20)(r4)
- stw r22, (JB_REGS+24)(r4)
- stw r23, (JB_REGS+28)(r4)
-
- stw ra, JB_PC(r4)
- stw sp, JB_SP(r4)
- stw fp, JB_FP(r4)
- stw gp, JB_GP(r4)
-
-#ifdef __UCLIBC_HAS_FPU__
- SAVE_FPU r4 JB_FPREGS
-#endif
- stw r0, JB_SIZE(r4) /* signal mask is not saved */
- mov r2, zero
- ret
-
-
-
diff --git a/libc/sysdeps/linux/nios2/bsd-setjmp.S b/libc/sysdeps/linux/nios2/bsd-setjmp.S
deleted file mode 100644
index f533754..0000000
--- a/libc/sysdeps/linux/nios2/bsd-setjmp.S
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * libc/sysdeps/linux/nios2/bsd-setjmp.S
- *
- * Copyright (C) 2004,05,06 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- *
- */
-
-
-#include <features.h>
-#include <jmpbuf-offsets.h>
-
- .globl setjmp
- .type setjmp,@function
- .balign 4
-
-setjmp:
- stw r16, (JB_REGS+ 0)(r4)
- stw r17, (JB_REGS+ 4)(r4)
- stw r18, (JB_REGS+ 8)(r4)
- stw r19, (JB_REGS+12)(r4)
- stw r20, (JB_REGS+16)(r4)
- stw r21, (JB_REGS+20)(r4)
- stw r22, (JB_REGS+24)(r4)
- stw r23, (JB_REGS+28)(r4)
-
- stw ra, JB_PC(r4)
- stw sp, JB_SP(r4)
- stw fp, JB_FP(r4)
- stw gp, JB_GP(r4)
-
-#ifdef __UCLIBC_HAS_FPU__
- SAVE_FPU r4 JB_FPREGS
-#endif
-
- movui r5, 1
-#ifdef __PIC__
- /* just pray 16 bit offset is enough */
- br __sigjmp_save
-#else
- movhi r8, %hi(__sigjmp_save)
- ori r8, r8, %lo(__sigjmp_save)
- jmp r8
-#endif
-
-
diff --git a/libc/sysdeps/linux/nios2/clone.S b/libc/sysdeps/linux/nios2/clone.S
index 4afcb7d..0626d8a 100644
--- a/libc/sysdeps/linux/nios2/clone.S
+++ b/libc/sysdeps/linux/nios2/clone.S
@@ -1,70 +1,94 @@
-/*
- * libc/sysdeps/linux/nios2/clone.S -- `clone' syscall for linux/nios2
- *
- * Copyright (C) 2004 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- */
-
-#define _ERRNO_H
+/* clone() implementation for Nios II.
+ Copyright (C) 2008-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andrew Jenner <andrew(a)codesourcery.com>, 2008.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* clone() is even more special than fork() as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
#include <bits/errno.h>
-#include <sys/syscall.h>
-
-#ifdef __NR_clone
-/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
-
-.text
-.global clone
-.type clone,%function
-.align 4
-clone:
- addi sp,sp,-8
- mov r8,r4
- stw ra,4(sp)
- stw r16,0(sp)
-
- mov r4,r6
- movi r2,-EINVAL
-
- /* sanity check */
- beq r8,zero,CLONE_ERROR_LABEL
- beq r5,zero,CLONE_ERROR_LABEL
-
- /* system call */
- movi r2,TRAP_ID_SYSCALL
- movi r3,__NR_clone
- trap
-
- /* child call the function */
- mov r4,r7
- bne r2,zero,CLONE_ERROR_LABEL
- callr r8
-
- /* exit if it returns */
- mov r4,r2
- movi r3,__NR_exit
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <tcb-offsets.h>
+#endif
+
+#define CLONE_VM 0x00000100
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+ void *parent_tidptr, void *tls, void *child_tidptr) */
+
+ .text
+ENTRY(__clone)
+ /* Sanity check arguments. */
+ movi r2, EINVAL
+
+ subi r5, r5, 8 /* Reserve argument save space. */
+ stw r4, 4(r5) /* Save function pointer. */
+ stw r7, 0(r5) /* Save argument pointer. */
+
+ /* Load arguments. */
+ mov r4, r6
+ ldw r6, 0(sp)
+ ldw r7, 8(sp)
+ ldw r8, 4(sp)
+
+ /* Do the system call. */
+ movi r2, SYS_ify (clone)
+
trap
-
-CLONE_ERROR_LABEL:
- movi r3,-4096
- sub r16,zero,r2
- bgeu r3,r2,CLONE_OK
-
- /* store errno */
- call __errno_location
- stw r16,0(r2)
- movi r2,-1
-
-CLONE_OK:
- ldw ra,4(sp)
- ldw r16,0(sp)
- addi sp,sp,8
+
+ /* See if we're on the newly created thread. */
+ beq r2, zero, thread_start
+ /* Successful return from the parent */
ret
-.size clone,.-clone
+thread_start:
+ /* We expect the argument registers to be preserved across system
+ calls and across task cloning, so flags should be in r4 here. */
+ andi r2, r4, CLONE_VM
+ bne r2, zero, 2f
+ DO_CALL (getpid, 0)
+#ifdef RESET_PID
+ stw r2, PID_OFFSET(r23)
+ stw r2, TID_OFFSET(r23)
+#endif
+2:
+ ldw r5, 4(sp) /* Function pointer. */
+ ldw r4, 0(sp) /* Argument pointer. */
+ addi sp, sp, 8
+
+ /* Call the user's function. */
+ callr r5
+ /* _exit with the result. */
+ mov r4, r2
+#ifdef __PIC__
+ nextpc r22
+1: movhi r8, %hiadj(_gp_got - 1b)
+ addi r8, r8, %lo(_gp_got - 1b)
+ add r22, r22, r8
+ ldw r8, %call(HIDDEN_JUMPTARGET(_exit))(r22)
+ jmp r8
+#else
+ jmpi _exit
#endif
+
+END(__clone)
+libc_hidden_def (__clone)
+weak_alias (__clone, clone)
diff --git a/libc/sysdeps/linux/nios2/clone.c b/libc/sysdeps/linux/nios2/clone.c
deleted file mode 100644
index eec9f42..0000000
--- a/libc/sysdeps/linux/nios2/clone.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * libc/sysdeps/linux/nios2/clone.c -- `clone' syscall for linux/nios2
- * Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- *
- *
- * Copyright (C) 2004,05 Microtronix Datacom Ltd
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles(a)gnu.org>
- *
- * Written by Miles Bader <miles(a)gnu.org>
- * Nios2 port by Wentao Xu
- */
-
-#include <errno.h>
-#include <sched.h>
-#include <sys/syscall.h>
-
-int clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...)
-{
- register unsigned long rval __asm__ ("r2") = -EINVAL;
-
- if (fn && child_stack) {
- register unsigned long syscall __asm__ ("r3");
- register unsigned long arg0 __asm__ ("r4");
- register unsigned long arg1 __asm__ ("r5");
-
- /* Clone this thread. */
- rval = TRAP_ID_SYSCALL;
- syscall = __NR_clone;
- arg0 = flags;
- arg1 = (unsigned long)child_stack;
- __asm__ __volatile__ ("trap "
- : "=r" (rval), "=r" (syscall)
- : "0" (rval),"1" (syscall), "r" (arg0), "r" (arg1)
- );
-
- if (rval == 0) {
- /* In child thread, call fn and exit. */
- arg0 = (*fn) (arg);
- syscall = __NR_exit;
- __asm__ __volatile__ ("trap "
- : "=r" (rval), "=r" (syscall)
- : "1" (syscall), "r" (arg0));
- }
- }
-
- __syscall_return (int, rval);
-}
diff --git a/libc/sysdeps/linux/nios2/crt1.S b/libc/sysdeps/linux/nios2/crt1.S
index c178452..e13d595 100644
--- a/libc/sysdeps/linux/nios2/crt1.S
+++ b/libc/sysdeps/linux/nios2/crt1.S
@@ -1,20 +1,40 @@
-/*
- * libc/sysdeps/linux/nios2/crt0.S -- entry point for linux/nios2
- *
- * Copyright (C) 2004,05,06 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- * Updated by Thomas Chou <thomas(a)wytron.com.tw> for crt1.S
- *
- */
+/* Startup code for Nios II
+ Copyright (C) 1995-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
#include <features.h>
#include <asm/unistd.h>
-#define TRAP_ID_SYSCALL 0
.global _start
.type _start,@function
@@ -27,45 +47,64 @@
.type main,@function
.type __uClibc_main,@function
.text
- .balign 4
+
_start:
- nop
- br 0f
-0:
- /* load gp */
- movhi gp, %hiadj(_gp)
- addi gp, gp, %lo(_gp)
-
- /* load main, argc, argv from stack */
- movhi r4, %hi(main)
- ori r4, r4, %lo(main) /* main */
- ldw r5, 0(sp) /* argc */
- ldw r6, 4(sp) /* argv */
-
- /* load the 4th arg */
- movhi r7, %hi(_init)
- ori r7, r7, %lo(_init)
-
- /* Allocate space on the stack for 6-7th arg, reuse 5th space */
- addi sp,sp,-8
- /* push 5-7th args on stack */
- movhi r8, %hi(_fini)
- ori r8, r8, %lo(_fini)
- stw r8, 0(sp)
-
- stw r2, 4(sp) /* rtld_fini */
- stw sp, 8(sp) /* stack_end */
-
- /* call uClibc_main, shouldn't return */
-#ifdef __PIC__
- /* just pray 16 bit offset is enough */
- br __uClibc_main
-#else
- call __uClibc_main
-#endif
+ /* Set up the global pointer. */
+ movhi gp, %hiadj(_gp)
+ addi gp, gp, %lo(_gp)
+
+ /* Save the stack pointer. */
+ mov r2, sp
+
+ /* Create room on the stack for the fini, rtld_fini and stack_end args
+ to __uClibc_main. */
+ subi sp, sp, 12
+
+ /* Push stack_end */
+ stw r2, 8(sp)
+
+ /* Push rtld_fini */
+ stw r4, 4(sp)
+
+ /* Set up the GOT pointer. */
+ nextpc r22
+1: movhi r2, %hiadj(_gp_got - 1b)
+ addi r2, r2, %lo(_gp_got - 1b)
+ add r22, r22, r2
+
+ /* r6 == argv */
+ addi r6, sp, 16
+
+ /* r5 == argc */
+ ldw r5, 12(sp)
+
+ /* r4 == main */
+ movhi r4, %call_hiadj(main)
+ addi r4, r4, %call_lo(main)
+ add r4, r4, r22
+ ldw r4, 0(r4)
+
+ /* fp == 0 */
+ mov fp, zero
+
+ /* Let the libc call main and exit with its return code. */
+ movhi r2, %call_hiadj(__uClibc_main)
+ addi r2, r2, %call_lo(__uClibc_main)
+ add r2, r2, r22
+ ldw r2, 0(r2)
+ callr r2
+
+ /* should never get here....*/
+ movhi r2, %call_hiadj(abort)
+ addi r2, r2, %call_lo(abort)
+ add r2, r2, r22
+ ldw r2, 0(r2)
+ callr r2
- /* crash in the event of return */
-__exit:
- movui r2, TRAP_ID_SYSCALL
- movui r3, __NR_exit
- trap
+/* Define a symbol for the first piece of initialized data. */
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
+ .weak data_start
+ data_start = __data_start
diff --git a/libc/sysdeps/linux/nios2/fpu_control.h b/libc/sysdeps/linux/nios2/fpu_control.h
deleted file mode 100644
index 4ba51b5..0000000
--- a/libc/sysdeps/linux/nios2/fpu_control.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* FPU control word bits. Nios2 version.
- Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _FPU_CONTROL_H
-#define _FPU_CONTROL_H
-
-/* MIPS FPU floating point control register bits.
- *
- * 31-25 -> floating point conditions code bits 7-1. These bits are only
- * available in MIPS IV.
- * 24 -> flush denormalized results to zero instead of
- * causing unimplemented operation exception. This bit is only
- * available for MIPS III and newer.
- * 23 -> Condition bit
- * 22-18 -> reserved (read as 0, write with 0)
- * 17 -> cause bit for unimplemented operation
- * 16 -> cause bit for invalid exception
- * 15 -> cause bit for division by zero exception
- * 14 -> cause bit for overflow exception
- * 13 -> cause bit for underflow exception
- * 12 -> cause bit for inexact exception
- * 11 -> enable exception for invalid exception
- * 10 -> enable exception for division by zero exception
- * 9 -> enable exception for overflow exception
- * 8 -> enable exception for underflow exception
- * 7 -> enable exception for inexact exception
- * 6 -> flag invalid exception
- * 5 -> flag division by zero exception
- * 4 -> flag overflow exception
- * 3 -> flag underflow exception
- * 2 -> flag inexact exception
- * 1-0 -> rounding control
- *
- *
- * Rounding Control:
- * 00 - rounding to nearest (RN)
- * 01 - rounding toward zero (RZ)
- * 10 - rounding (up) toward plus infinity (RP)
- * 11 - rounding (down)toward minus infinity (RM)
- */
-
-#include <features.h>
-
-/* masking of interrupts */
-#define _FPU_MASK_V 0x0800 /* Invalid operation */
-#define _FPU_MASK_Z 0x0400 /* Division by zero */
-#define _FPU_MASK_O 0x0200 /* Overflow */
-#define _FPU_MASK_U 0x0100 /* Underflow */
-#define _FPU_MASK_I 0x0080 /* Inexact operation */
-
-/* flush denormalized numbers to zero */
-#define _FPU_FLUSH_TZ 0x1000000
-
-/* rounding control */
-#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */
-#define _FPU_RC_ZERO 0x1
-#define _FPU_RC_UP 0x2
-#define _FPU_RC_DOWN 0x3
-
-#define _FPU_RESERVED 0xfe3c0000 /* Reserved bits in cw */
-
-
-/* The fdlibm code requires strict IEEE double precision arithmetic,
- and no interrupts for exceptions, rounding to nearest. */
-
-#define _FPU_DEFAULT 0x00000000
-
-/* IEEE: same as above, but exceptions */
-#define _FPU_IEEE 0x00000F80
-
-/* Type of the control word. */
-typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__)));
-
-/* Macros for accessing the hardware control word. */
-#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw))
-#define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw))
-
-#if 0
-/* Default control word set at startup. */
-extern fpu_control_t __fpu_control;
-#endif
-
-#endif /* fpu_control.h */
diff --git a/libc/sysdeps/linux/nios2/jmpbuf-offsets.h b/libc/sysdeps/linux/nios2/jmpbuf-offsets.h
index b7d19ca..20482b3 100644
--- a/libc/sysdeps/linux/nios2/jmpbuf-offsets.h
+++ b/libc/sysdeps/linux/nios2/jmpbuf-offsets.h
@@ -6,12 +6,16 @@
#include <features.h>
-#define JB_REGS 0
-#define JB_PC 32
-#define JB_SP 36
-#define JB_FP 40
-#define JB_GP 44
-#define JB_FPREGS 48
+#define JB_R16 0
+#define JB_R17 1
+#define JB_R18 2
+#define JB_R19 3
+#define JB_R20 4
+#define JB_R21 5
+#define JB_R22 6
+#define JB_FP 7
+#define JB_RA 8
+#define JB_SP 9
#ifdef __UCLIBC_HAS_FPU__
# define JB_SIZE 304
diff --git a/libc/sysdeps/linux/nios2/jmpbuf-unwind.h b/libc/sysdeps/linux/nios2/jmpbuf-unwind.h
index c22ab24..fe0028b 100644
--- a/libc/sysdeps/linux/nios2/jmpbuf-unwind.h
+++ b/libc/sysdeps/linux/nios2/jmpbuf-unwind.h
@@ -1,12 +1,39 @@
-/*
- * Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
+/* Examine __jmp_buf for unwinding frames. Nios II version.
+ Copyright (C) 2005-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
#include <setjmp.h>
+#include <jmpbuf-offsets.h>
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
+
#define _JMPBUF_UNWINDS(jmpbuf, address) \
- ((void *) (address) < (void *) (jmpbuf)->__sp)
+ ((void *) (address) < (void *) (jmpbuf[JB_SP]))
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+
+#include <stdint.h>
+#include <unwind.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj))
+
+#endif
diff --git a/libc/sysdeps/linux/nios2/setjmp.S b/libc/sysdeps/linux/nios2/setjmp.S
index 6071685..8050dba 100644
--- a/libc/sysdeps/linux/nios2/setjmp.S
+++ b/libc/sysdeps/linux/nios2/setjmp.S
@@ -1,49 +1,56 @@
-/*
- * libc/sysdeps/linux/nios2/setjmp.S
- *
- * Copyright (C) 2004,05,06 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- *
- */
-
-#include <features.h>
+/* setjmp for Nios II.
+ Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
#include <jmpbuf-offsets.h>
-.globl __sigsetjmp
-.type __sigsetjmp,@function
-.balign 4
-
-__sigsetjmp:
- stw r16, (JB_REGS+ 0)(r4)
- stw r17, (JB_REGS+ 4)(r4)
- stw r18, (JB_REGS+ 8)(r4)
- stw r19, (JB_REGS+12)(r4)
- stw r20, (JB_REGS+16)(r4)
- stw r21, (JB_REGS+20)(r4)
- stw r22, (JB_REGS+24)(r4)
- stw r23, (JB_REGS+28)(r4)
-
- stw ra, JB_PC(r4)
- stw sp, JB_SP(r4)
- stw fp, JB_FP(r4)
- stw gp, JB_GP(r4)
-
-#ifdef __UCLIBC_HAS_FPU__
- SAVE_FPU r4 JB_FPREGS
-#endif
-
-#ifdef __PIC__
- /* just pray 16 bit offset is enough */
- br __sigjmp_save
-#else
- movhi r8, %hi(__sigjmp_save)
- ori r8, r8, %lo(__sigjmp_save)
- jmp r8
-#endif
-
-.size __sigsetjmp,.-__sigsetjmp
+ .text
+ENTRY(setjmp)
+ movi r5, 1
+ br __sigsetjmp
+END(setjmp)
+libc_hidden_def(setjmp)
+
+ENTRY(_setjmp)
+ mov r5, zero
+ br __sigsetjmp
+END(_setjmp)
+libc_hidden_def(_setjmp)
+
+/* Save the current program position in ENV and return 0. */
+ENTRY(__sigsetjmp)
+ stw r16, (JB_R16*4)(r4)
+ stw r17, (JB_R17*4)(r4)
+ stw r18, (JB_R18*4)(r4)
+ stw r19, (JB_R19*4)(r4)
+ stw r20, (JB_R20*4)(r4)
+ stw r21, (JB_R21*4)(r4)
+ stw r22, (JB_R22*4)(r4)
+ stw fp, (JB_FP*4)(r4)
+ stw ra, (JB_RA*4)(r4)
+ stw sp, (JB_SP*4)(r4)
+ /* Save the signal mask if requested. */
+ nextpc r2
+
+1: movhi r3, %hiadj(__sigjmp_save - 1b)
+ addi r3, r3, %lo(__sigjmp_save - 1b)
+ add r2, r2, r3
+ jmp r2
+
+END(__sigsetjmp)
+libc_hidden_def(__sigsetjmp)
diff --git a/libc/sysdeps/linux/nios2/syscall.c b/libc/sysdeps/linux/nios2/syscall.c
deleted file mode 100644
index 60ddd02..0000000
--- a/libc/sysdeps/linux/nios2/syscall.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * libc/sysdeps/linux/nios2/syscall.c -- generic syscall function for linux/nios2
- *
- * Copyright (C) 2004 Microtronix Datacom Ltd.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this program; see the file COPYING.LIB. If not, see
- * <http://www.gnu.org/licenses/>.
- */
-
-#include <features.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/syscall.h>
-
-
-long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
-{
- register long _r2 __asm__("r2")=(long)TRAP_ID_SYSCALL;
- register long _r3 __asm__("r3")=(long)sysnum;
-
- register long _r4 __asm__("r4")=(long)(a);
- register long _r5 __asm__("r5")=(long)(b);
- register long _r6 __asm__("r6")=(long)(c);
- register long _r7 __asm__("r7")=(long)(d);
- register long _r8 __asm__("r8")=(long)(e);
- register long _r9 __asm__("r9")=(long)(f);
- __asm__ __volatile__(
- "trap "
- : "=r"(_r2), "=r"(_r3)
- : "0"(_r2), "1"(_r3),
- "r"(_r4), "r"(_r5), "r"(_r6), "r"(_r7), "r"(_r8), "r"(_r9)
- : "memory");
-
- __syscall_return (long, _r2);
-}
-
diff --git a/libpthread/nptl/sysdeps/microblaze/dl-tls.h b/libc/sysdeps/linux/nios2/sysdep.h
similarity index 64%
copy from libpthread/nptl/sysdeps/microblaze/dl-tls.h
copy to libc/sysdeps/linux/nios2/sysdep.h
index 5613e21..6813818 100644
--- a/libpthread/nptl/sysdeps/microblaze/dl-tls.h
+++ b/libc/sysdeps/linux/nios2/sysdep.h
@@ -1,5 +1,5 @@
-/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
-
+/* Assembler macros for Nios II.
+ Copyright (C) 2015-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,11 +16,19 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/* Type used for the representation of TLS information in the GOT. */
-typedef struct
-{
- unsigned long int ti_module;
- unsigned long int ti_offset;
-} tls_index;
+#include <common/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+#define ENTRY(name) \
+ .globl C_SYMBOL_NAME(name); \
+ .type C_SYMBOL_NAME(name),%function; \
+ C_LABEL(name)
+
+#undef END
+#define END(name) \
+ ASM_SIZE_DIRECTIVE(name)
-extern void *__tls_get_addr (tls_index *ti);
+#endif /* __ASSEMBLER__ */
diff --git a/libc/sysdeps/linux/nios2/vfork.S b/libc/sysdeps/linux/nios2/vfork.S
index 2aee81e..99e4a73 100644
--- a/libc/sysdeps/linux/nios2/vfork.S
+++ b/libc/sysdeps/linux/nios2/vfork.S
@@ -1,50 +1,54 @@
-/*
- * libc/sysdeps/linux/nios2/vfork.S -- `vfork' syscall for linux/nios2
- *
- * Copyright (C) 2004 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Wentao Xu <wentao(a)microtronix.com>
- */
-
-#include <sys/syscall.h>
-
-#define __NR_vfork 1071
-
-.text
-.global __vfork
-.hidden __vfork
-.type __vfork,%function
-.align 4
-__vfork:
- movui r2, TRAP_ID_SYSCALL
- movui r3, __NR_vfork
- trap
- movi r8, -4096
- bltu r8, r2, fix_errno
- ret
-fix_errno:
- sub r8, r0, r2
-
- addi sp, sp, -8
- stw ra, 4(sp)
- stw r8, 0(sp)
-#ifndef __PIC__
- call __errno_location
-#else
-
+/* vfork for Nios II Linux.
+ Copyright (C) 2005-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <tcb-offsets.h>
+#endif
+
+ENTRY(__vfork)
+
+#ifdef RESET_PID
+ ldw r6, PID_OFFSET(r23)
+ sub r7, zero, r6
+ bne r7, zero, 2f
+ movhi r7, %hi(0x80000000)
+2:
+ stw r7, PID_OFFSET(r23)
#endif
- ldw ra, 4(sp)
- ldw r8, 0(sp)
- stw r8, 0(r2)
-
- addi r2, r0, -1
- addi sp, sp, 8
- ret
-
-.size __vfork,.-__vfork
-weak_alias(__vfork,vfork)
+
+ movi r4, 0x4111 /* (CLONE_VM | CLONE_VFORK | SIGCHLD) */
+ mov r5, zero
+
+ /* Do the system call. */
+ movi r2, SYS_ify(clone)
+
+ trap
+
+ beq r2, zero, 1f
+#ifdef RESET_PID
+ stw r6, PID_OFFSET(r23)
+#endif
+1:
+ ret
+
+END(__vfork)
+
+weak_alias(__vfork, vfork)
libc_hidden_def(vfork)
diff --git a/libpthread/nptl/pthread_create.c b/libpthread/nptl/pthread_create.c
index d42a6e7..49497fe 100644
--- a/libpthread/nptl/pthread_create.c
+++ b/libpthread/nptl/pthread_create.c
@@ -454,7 +454,7 @@ __pthread_create_2_1 (
performed in 'get_cached_stack'. This way we avoid doing this if
the stack freshly allocated with 'mmap'. */
-#ifdef TLS_TCB_AT_TP
+#if TLS_TCB_AT_TP
/* Reference to the TCB itself. */
pd->header.self = pd;
diff --git a/libpthread/nptl/sysdeps/powerpc/Makefile.arch b/libpthread/nptl/sysdeps/nios2/Makefile.arch
similarity index 58%
copy from libpthread/nptl/sysdeps/powerpc/Makefile.arch
copy to libpthread/nptl/sysdeps/nios2/Makefile.arch
index 18ddc28..fbb560b 100644
--- a/libpthread/nptl/sysdeps/powerpc/Makefile.arch
+++ b/libpthread/nptl/sysdeps/nios2/Makefile.arch
@@ -1,7 +1,4 @@
# Makefile for uClibc NPTL
-#
-# Copyright (C) 2009 Bernhard Reutner-Fischer <uclibc(a)uclibc.org>
-#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-#
+libc_arch_a_CSRC = libc-tls.c
diff --git a/libpthread/nptl/sysdeps/mips/dl-tls.h b/libpthread/nptl/sysdeps/nios2/dl-tls.h
similarity index 73%
copy from libpthread/nptl/sysdeps/mips/dl-tls.h
copy to libpthread/nptl/sysdeps/nios2/dl-tls.h
index e26aa38..cd79461 100644
--- a/libpthread/nptl/sysdeps/mips/dl-tls.h
+++ b/libpthread/nptl/sysdeps/nios2/dl-tls.h
@@ -1,5 +1,5 @@
-/* Thread-local storage handling in the ELF dynamic linker. MIPS version.
- Copyright (C) 2005 Free Software Foundation, Inc.
+/* Thread-local storage handling in the ELF dynamic linker. Nios II version.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -13,7 +13,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
@@ -32,14 +32,17 @@ typedef struct
#define TLS_DTV_OFFSET 0x8000
/* Compute the value for a GOTTPREL reloc. */
-#define TLS_TPREL_VALUE(sym_map, sym_val) \
- ((sym_map)->l_tls_offset + sym_val - TLS_TP_OFFSET)
+#define TLS_TPREL_VALUE(sym_map, sym) \
+ ((sym_map)->l_tls_offset + (sym)->st_value - TLS_TP_OFFSET)
/* Compute the value for a DTPREL reloc. */
-#define TLS_DTPREL_VALUE(sym_val) \
- (sym_val - TLS_DTV_OFFSET)
+#define TLS_DTPREL_VALUE(sym) \
+ ((sym)->st_value - TLS_DTV_OFFSET)
extern void *__tls_get_addr (tls_index *ti);
# define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET)
# define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET)
+
+/* Value used for dtv entries for which the allocation is delayed. */
+#define TLS_DTV_UNALLOCATED ((void *) -1l)
diff --git a/libpthread/nptl/sysdeps/mips/libc-tls.c b/libpthread/nptl/sysdeps/nios2/libc-tls.c
similarity index 79%
copy from libpthread/nptl/sysdeps/mips/libc-tls.c
copy to libpthread/nptl/sysdeps/nios2/libc-tls.c
index d6ac875..d677979 100644
--- a/libpthread/nptl/sysdeps/mips/libc-tls.c
+++ b/libpthread/nptl/sysdeps/nios2/libc-tls.c
@@ -1,5 +1,5 @@
-/* Thread-local storage handling in the ELF dynamic linker. MIPS version.
- Copyright (C) 2005 Free Software Foundation, Inc.
+/* Thread-local storage handling in the ELF dynamic linker. Nios II version.
+ Copyright (C) 2005-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -13,15 +13,13 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdeps/generic/libc-tls.c>
#include <dl-tls.h>
-#if USE_TLS
-
-/* On MIPS, linker optimizations are not required, so __tls_get_addr
+/* On Nios II, linker optimizations are not required, so __tls_get_addr
can be called even in statically linked binaries. In this case module
must be always 1 and PT_TLS segment exist in the binary, otherwise it
would not link. */
@@ -32,5 +30,3 @@ __tls_get_addr (tls_index *ti)
dtv_t *dtv = THREAD_DTV ();
return (char *) dtv[1].pointer.val + GET_ADDR_OFFSET;
}
-
-#endif
diff --git a/libpthread/nptl/sysdeps/arm/pthread_spin_lock.c b/libpthread/nptl/sysdeps/nios2/pthread_spin_lock.c
similarity index 100%
copy from libpthread/nptl/sysdeps/arm/pthread_spin_lock.c
copy to libpthread/nptl/sysdeps/nios2/pthread_spin_lock.c
diff --git a/libpthread/nptl/sysdeps/microblaze/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/nios2/pthread_spin_trylock.c
similarity index 100%
copy from libpthread/nptl/sysdeps/microblaze/pthread_spin_trylock.c
copy to libpthread/nptl/sysdeps/nios2/pthread_spin_trylock.c
diff --git a/libpthread/nptl/sysdeps/mips/pthreaddef.h b/libpthread/nptl/sysdeps/nios2/pthreaddef.h
similarity index 84%
copy from libpthread/nptl/sysdeps/mips/pthreaddef.h
copy to libpthread/nptl/sysdeps/nios2/pthreaddef.h
index 6929882..4268252 100644
--- a/libpthread/nptl/sysdeps/mips/pthreaddef.h
+++ b/libpthread/nptl/sysdeps/nios2/pthreaddef.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+/* pthread machine parameter definitions, Nios II version.
+ Copyright (C) 2002-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -12,27 +13,24 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Default stack size. */
#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
/* Required stack pointer alignment at beginning. */
-#define STACK_ALIGN 16
+#define STACK_ALIGN 4
/* Minimal stack size after allocating thread descriptor and guard size. */
#define MINIMAL_REST_STACK 2048
/* Alignment requirement for TCB. */
-#define TCB_ALIGNMENT 16
-
+#define TCB_ALIGNMENT 4
/* Location of current stack frame. */
#define CURRENT_STACK_FRAME __builtin_frame_address (0)
-
/* XXX Until we have a better place keep the definitions here. */
-
#define __exit_thread_inline(val) \
INLINE_SYSCALL (exit, 1, (val))
diff --git a/libpthread/nptl/sysdeps/mips/tcb-offsets.sym b/libpthread/nptl/sysdeps/nios2/tcb-offsets.sym
similarity index 50%
copy from libpthread/nptl/sysdeps/mips/tcb-offsets.sym
copy to libpthread/nptl/sysdeps/nios2/tcb-offsets.sym
index e0e71dc..d9ae952 100644
--- a/libpthread/nptl/sysdeps/mips/tcb-offsets.sym
+++ b/libpthread/nptl/sysdeps/nios2/tcb-offsets.sym
@@ -4,8 +4,11 @@
--
-- Abuse tls.h macros to derive offsets relative to the thread register.
-#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
+# undef __thread_self
+# define __thread_self ((void *) 0)
+# define thread_offsetof(mem) ((ptrdiff_t) THREAD_SELF + offsetof (struct pthread, mem))
MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
PID_OFFSET thread_offsetof (pid)
TID_OFFSET thread_offsetof (tid)
+POINTER_GUARD (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
diff --git a/libpthread/nptl/sysdeps/mips/tls.h b/libpthread/nptl/sysdeps/nios2/tls.h
similarity index 73%
copy from libpthread/nptl/sysdeps/mips/tls.h
copy to libpthread/nptl/sysdeps/nios2/tls.h
index 09baf12..9785670 100644
--- a/libpthread/nptl/sysdeps/mips/tls.h
+++ b/libpthread/nptl/sysdeps/nios2/tls.h
@@ -1,5 +1,5 @@
-/* Definition for thread-local data handling. NPTL/MIPS version.
- Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+/* Definition for thread-local data handling. NPTL/Nios II version.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -13,7 +13,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _TLS_H
@@ -35,28 +35,14 @@ typedef union dtv
} pointer;
} dtv_t;
-/* Note: rd must be $v1 to be ABI-conformant. */
-# define READ_THREAD_POINTER() \
- ({ void *__result; \
- __asm__ __volatile__ (".set\tpush\n\t.set\tmips32r2\n\t" \
- "rdhwr\t%0, $29\n\t.set\tpop" : "=v" (__result)); \
- __result; })
-
#else /* __ASSEMBLER__ */
# include <tcb-offsets.h>
-
-# define READ_THREAD_POINTER(rd) \
- .set push; \
- .set mips32r2; \
- rdhwr rd, $29; \
- .set pop
#endif /* __ASSEMBLER__ */
-
/* We require TLS support in the tools. */
-#define HAVE_TLS_SUPPORT 1
-#define HAVE_TLS_MODEL_ATTRIBUTE 1
-#define HAVE___THREAD 1
+#define HAVE_TLS_SUPPORT 1
+#define HAVE_TLS_MODEL_ATTRIBUTE 1
+#define HAVE___THREAD 1
/* Signal that TLS support is available. */
#define USE_TLS 1
@@ -70,14 +56,19 @@ typedef union dtv
# define TLS_DTV_AT_TP 1
/* Get the thread descriptor definition. */
-#include <../../descr.h>
+# include <../../descr.h>
typedef struct
{
dtv_t *dtv;
- void *private;
+ uintptr_t pointer_guard;
+ unsigned spare[6];
} tcbhead_t;
+register struct pthread *__thread_self __asm__("r23");
+
+#define READ_THREAD_POINTER() ((void *) __thread_self)
+
/* This is the size of the initial TCB. Because our TCB is before the thread
pointer, we don't need this. */
# define TLS_INIT_TCB_SIZE 0
@@ -97,10 +88,9 @@ typedef struct
(sizeof (struct pthread) \
+ ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
-/* The thread pointer (in hardware register $29) points to the end of
- the TCB + 0x7000, as for PowerPC. The pthread_descr structure is
- immediately in front of the TCB. */
-# define TLS_TCB_OFFSET 0x7000
+/* The thread pointer (in hardware register r23) points to the end of
+ the TCB + 0x7000, as for PowerPC and MIPS. */
+# define TLS_TCB_OFFSET 0x7000
/* Install the dtv pointer. The pointer passed is to the element with
index -1 which contain the length. */
@@ -115,16 +105,13 @@ typedef struct
# define GET_DTV(tcbp) \
(((tcbhead_t *) (tcbp))[-1].dtv)
-/* Code to initially initialize the thread pointer. This might need
- special attention since 'errno' is not yet available and if the
- operation can cause a failure 'errno' must not be touched. */
+/* Code to initially initialize the thread pointer. */
# define TLS_INIT_TP(tcbp, secondcall) \
- ({ INTERNAL_SYSCALL_DECL (err); \
- long result_var attribute_unused; \
- result_var = INTERNAL_SYSCALL (set_thread_area, err, 1, \
- (char *) (tcbp) + TLS_TCB_OFFSET); \
- INTERNAL_SYSCALL_ERROR_P (result_var, err) \
- ? "unknown error" : NULL; })
+ (__thread_self = (struct pthread *) ((char *) tcbp + TLS_TCB_OFFSET), NULL)
+
+/* Value passed to 'clone' for initialization of the thread register. */
+# define TLS_DEFINE_INIT_TP(tp, pd) \
+ void *tp = (void *) (pd) + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE
/* Return the address of the dtv for the current thread. */
# define THREAD_DTV() \
@@ -137,7 +124,7 @@ typedef struct
/* Magic for libthread_db to know how to do THREAD_SELF. */
# define DB_THREAD_SELF \
- CONST_THREAD_AREA (32, TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)
+ REGISTER (32, 32, 23 * 4, -TLS_PRE_TCB_SIZE - TLS_TCB_OFFSET)
/* Access to data in the thread descriptor is easy. */
# define THREAD_GETMEM(descr, member) \
@@ -149,9 +136,20 @@ typedef struct
# define THREAD_SETMEM_NC(descr, member, idx, value) \
descr->member[idx] = (value)
-/* l_tls_offset == 0 is perfectly valid on MIPS, so we have to use some
+# define THREAD_GET_POINTER_GUARD() \
+ (((tcbhead_t *) (READ_THREAD_POINTER () \
+ - TLS_TCB_OFFSET))[-1].pointer_guard)
+# define THREAD_SET_POINTER_GUARD(value) \
+ (THREAD_GET_POINTER_GUARD () = (value))
+# define THREAD_COPY_POINTER_GUARD(descr) \
+ (((tcbhead_t *) ((void *) (descr) \
+ + TLS_PRE_TCB_SIZE))[-1].pointer_guard \
+ = THREAD_GET_POINTER_GUARD())
+
+/* l_tls_offset == 0 is perfectly valid on Nios II, so we have to use some
different value to mean unset l_tls_offset. */
# define NO_TLS_OFFSET -1
+
/* Get and set the global scope generation counter in struct pthread. */
#define THREAD_GSCOPE_FLAG_UNUSED 0
#define THREAD_GSCOPE_FLAG_USED 1
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile
similarity index 81%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile
index 43a6fad..8415283 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile
@@ -1,9 +1,5 @@
# Makefile for uClibc NPTL
-#
-# Copyright (C) 2005 Steven J. Hill <sjhill(a)uclibc.org>
-#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-#
top_srcdir=../../../../../../../
top_builddir=../../../../../../../
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile.arch
similarity index 71%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile.arch
index 2abb1d2..26f51fb 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/Makefile.arch
@@ -1,15 +1,9 @@
# Makefile for uClibc NPTL
-#
-# Copyright (C) 2009 Bernhard Reutner-Fischer <uclibc(a)uclibc.org>
-#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-#
libpthread_linux_arch_SSRC =
libpthread_linux_arch_CSRC = pthread_once.c
libc_linux_arch_CSRC = fork.c
libc_linux_arch_SSRC = clone.S vfork.S
-
-ASFLAGS += -DUSE___THREAD
-
+libc_linux_arch_SSRC-OMIT = waitpid.S
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/pthreadtypes.h
similarity index 89%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/pthreadtypes.h
index 5e44020..76076d0 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/pthreadtypes.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
+/* Machine-specific pthread type layouts. Nios II version.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -24,7 +25,6 @@
#define __SIZEOF_PTHREAD_MUTEX_T 24
#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
#define __SIZEOF_PTHREAD_COND_T 48
-#define __SIZEOF_PTHREAD_COND_COMPAT_T 12
#define __SIZEOF_PTHREAD_CONDATTR_T 4
#define __SIZEOF_PTHREAD_RWLOCK_T 32
#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -32,8 +32,8 @@
#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
-/* Thread identifiers. The structure of the attribute type is not
- exposed on purpose. */
+/* Thread identifiers. The structure of the attribute type is
+ deliberately not exposed. */
typedef unsigned long int pthread_t;
@@ -55,7 +55,7 @@ typedef struct __pthread_internal_slist
/* Data structures for mutex handling. The structure of the attribute
- type is not exposed on purpose. */
+ type is deliberately not exposed. */
typedef union
{
struct __pthread_mutex_s
@@ -83,9 +83,12 @@ typedef union
long int __align;
} pthread_mutexattr_t;
+/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
+#define __PTHREAD_SPINS 0
+
/* Data structure for conditional variable handling. The structure of
- the attribute type is not exposed on purpose. */
+ the attribute type is deliberately not exposed. */
typedef union
{
struct
@@ -120,7 +123,7 @@ typedef int pthread_once_t;
#if defined __USE_UNIX98 || defined __USE_XOPEN2K
/* Data structure for read-write lock variable handling. The
- structure of the attribute type is not exposed on purpose. */
+ structure of the attribute type is deliberately not exposed. */
typedef union
{
struct
@@ -152,6 +155,8 @@ typedef union
long int __align;
} pthread_rwlock_t;
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
typedef union
{
char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/semaphore.h
similarity index 89%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/sh/bits/semaphore.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/semaphore.h
index 9da293a..d877316 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/bits/semaphore.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/bits/semaphore.h
@@ -1,6 +1,6 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Machine-specific POSIX semaphore type layouts. Nios II version.
+ Copyright (C) 2002-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper(a)redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -20,14 +20,11 @@
# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
#endif
-
#define __SIZEOF_SEM_T 16
-
/* Value returned if `sem_open' failed. */
#define SEM_FAILED ((sem_t *) 0)
-
typedef union
{
char __size[__SIZEOF_SEM_T];
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/clone.S
new file mode 100644
index 0000000..544974f
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/clone.S
@@ -0,0 +1,3 @@
+#define RESET_PID
+#include <tcb-offsets.h>
+#include "../../../../../../../libc/sysdeps/linux/nios2/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/createthread.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/createthread.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/createthread.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/fork.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/fork.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/fork.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/lowlevellock.h
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/lowlevellock.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/lowlevellock.h
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-gettimeofday.c b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/pt-gettimeofday.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-gettimeofday.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/pt-gettimeofday.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pthread_once.c b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/pthread_once.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/pthread_once.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/pthread_once.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h
new file mode 100644
index 0000000..25382dd
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h
@@ -0,0 +1,140 @@
+/* Assembler macros with cancellation support, Nios II version.
+ Copyright (C) 2003-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+#ifdef __ASSEMBLER__
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .type __##syscall_name##_nocancel, @function; \
+ .globl __##syscall_name##_nocancel; \
+ __##syscall_name##_nocancel: \
+ cfi_startproc; \
+ DO_CALL (syscall_name, args); \
+ ret; \
+ cfi_endproc; \
+ .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
+ ENTRY (name) \
+ SINGLE_THREAD_P(r2); \
+ bne r2, zero, pseudo_cancel; \
+ DO_CALL (syscall_name, args); \
+ ret; \
+ pseudo_cancel: \
+ SAVESTK_##args; /* save syscall args and adjust stack */ \
+ SAVEREG(ra, 0); /* save return address */ \
+ SAVEREG(r22, 4); /* save GOT pointer */ \
+ nextpc r22; \
+1: movhi r2, %hiadj(_gp_got - 1b); \
+ addi r2, r2, %lo(_gp_got - 1b); \
+ add r22, r22, r2; \
+ CENABLE; \
+ callr r3; \
+ stw r2, 8(sp); /* save mask */ \
+ LOADARGS_##args; \
+ movi r2, SYS_ify(syscall_name); \
+ trap; \
+ stw r2, 12(sp); /* save syscall result */ \
+ stw r7, 16(sp); /* save syscall error flag */ \
+ ldw r4, 8(sp); /* pass mask as argument 1 */ \
+ CDISABLE; \
+ callr r3; \
+ ldw r7, 16(sp); /* restore syscall error flag */ \
+ ldw r2, 12(sp); /* restore syscall result */ \
+ ldw ra, 0(sp); /* restore return address */ \
+ ldw r22, 4(sp); /* restore GOT pointer */ \
+ RESTORESTK_##args; \
+
+
+# undef PSEUDO_END
+# define PSEUDO_END(sym) \
+ END (sym)
+
+#define SAVEREG(REG, LOC) stw REG, LOC(sp); cfi_rel_offset (REG, LOC)
+#define SAVESTK(X) subi sp, sp, X; cfi_adjust_cfa_offset(X)
+#define SAVESTK_0 SAVESTK(20)
+#define SAVEARG_1 SAVEREG(r4, 20)
+#define SAVESTK_1 SAVESTK(24); SAVEARG_1
+#define SAVEARG_2 SAVEREG(r5, 24); SAVEARG_1
+#define SAVESTK_2 SAVESTK(28); SAVEARG_2
+#define SAVEARG_3 SAVEREG(r6, 28); SAVEARG_2
+#define SAVESTK_3 SAVESTK(32); SAVEARG_3
+#define SAVEARG_4 SAVEREG(r7, 32); SAVEARG_3
+#define SAVESTK_4 SAVESTK(36); SAVEARG_4
+#define SAVESTK_5 SAVESTK_4
+#define SAVESTK_6 SAVESTK_5
+
+#define LOADARGS_0
+#define LOADARGS_1 ldw r4, 20(sp)
+#define LOADARGS_2 LOADARGS_1; ldw r5, 24(sp)
+#define LOADARGS_3 LOADARGS_2; ldw r6, 28(sp)
+#define LOADARGS_4 LOADARGS_3; ldw r7, 32(sp)
+#define LOADARGS_5 LOADARGS_4; ldw r8, 36(sp)
+#define LOADARGS_6 LOADARGS_5; ldw r9, 40(sp)
+
+#define RESTORESTK(X) addi sp, sp, X; cfi_adjust_cfa_offset(-X)
+#define RESTORESTK_0 RESTORESTK(20)
+#define RESTORESTK_1 RESTORESTK(24)
+#define RESTORESTK_2 RESTORESTK(28)
+#define RESTORESTK_3 RESTORESTK(32)
+#define RESTORESTK_4 RESTORESTK(36)
+#define RESTORESTK_5 RESTORESTK(36)
+#define RESTORESTK_6 RESTORESTK(36)
+
+# endif
+
+# ifdef IS_IN_libpthread
+# define CENABLE ldw r3, %call(__pthread_enable_asynccancel)(r22)
+# define CDISABLE ldw r3, %call(__pthread_disable_asynccancel)(r22)
+# elif defined IS_IN_librt
+# define CENABLE ldw r3, %call(__librt_enable_asynccancel)(r22)
+# define CDISABLE ldw r3, %call(__librt_disable_asynccancel)(r22)
+# elif !defined NOT_IN_libc
+# define CENABLE ldw r3, %call(__libc_enable_asynccancel)(r22)
+# define CDISABLE ldw r3, %call(__libc_disable_asynccancel)(r22)
+# else
+# error Unsupported library
+# endif
+
+# ifndef __ASSEMBLER__
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) \
+ == 0, 1)
+# else
+# define SINGLE_THREAD_P(reg) \
+ ldw reg, MULTIPLE_THREADS_OFFSET(r23)
+# endif
+
+#elif !defined __ASSEMBLER__
+
+# define SINGLE_THREAD_P 1
+# define NO_CANCELLATION 1
+
+#endif
+
+#ifndef __ASSEMBLER__
+# define RTLD_SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
+#endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S
similarity index 95%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S
copy to libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S
index b9e8cf8..6ee414c 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S
@@ -35,4 +35,4 @@
cmp r0, #0; /* If we are the parent... */ \
strne r3, [r2, #PID_OFFSET] /* ... restore the saved PID. */
-#include "../../../../../../../libc/sysdeps/linux/arm/vfork.S"
+#include "../../../../../../../libc/sysdeps/linux/nios2/vfork.S"
diff --git a/utils/ldd.c b/utils/ldd.c
index 5b41e2e..e7430fc 100644
--- a/utils/ldd.c
+++ b/utils/ldd.c
@@ -103,6 +103,11 @@
#define ELFCLASSM ELFCLASS32
#endif
+#if defined(__nios2__)
+#define MATCH_MACHINE(x) (x == EM_NIOS32)
+#define ELFCLASSM ELFCLASS32
+#endif
+
#if defined(__powerpc__)
#define MATCH_MACHINE(x) (x == EM_PPC)
#define ELFCLASSM ELFCLASS32
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uClibc-ng - small C library for embedded systems
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uClibc-ng - small C library for embedded systems branch master updated. v1.0.19-5-g1917395
by wbx＠helium.openadk.org
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via 7825930078208462655e107677656c45014e91b4 (commit)
via a7f8986f6e81b912b35b46dcad4b8258f75c8b29 (commit)
from 99ef2719fb3d703fe38c4113cd7f5adec516dd3a (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
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- Log -----------------------------------------------------------------
commit 191739597c6d380692885cfdd8dd8aa4f31f029d
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Mon Oct 31 18:05:44 2016 +0100
microblaze: add NPTL/TLS support from GNU libc
Not perfect, but a starting point.
Some tests of the test suite are failing.
commit 7825930078208462655e107677656c45014e91b4
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Wed Jul 20 23:41:10 2016 +0200
microblaze: use assembly version of clone, fix vfork
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit a7f8986f6e81b912b35b46dcad4b8258f75c8b29
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Sun Jul 24 19:15:09 2016 +0200
ldso: remove useless debug output, too much noise
-----------------------------------------------------------------------
Summary of changes:
extra/Configs/Config.in | 1 -
include/elf.h | 55 +++----
ldso/ldso/dl-startup.c | 2 -
ldso/ldso/microblaze/dl-debug.h | 8 ++
ldso/ldso/microblaze/dl-startup.h | 3 -
ldso/ldso/microblaze/dl-sysdep.h | 28 ++--
ldso/ldso/microblaze/elfinterp.c | 22 +--
libc/sysdeps/linux/microblaze/Makefile.arch | 4 +-
.../linux/{xtensa => microblaze}/__syscall_error.c | 0
.../linux/microblaze/bits/uClibc_arch_features.h | 3 +-
libc/sysdeps/linux/microblaze/clone.S | 77 ++++++++++
libc/sysdeps/linux/microblaze/clone.c | 47 ------
libc/sysdeps/linux/microblaze/jmpbuf-offsets.h | 6 -
libc/sysdeps/linux/microblaze/jmpbuf-unwind.h | 25 ++++
libc/sysdeps/linux/microblaze/sysdep.h | 83 ++++++++++-
libc/sysdeps/linux/microblaze/vfork.S | 73 +++++-----
.../nptl/sysdeps/{arc => microblaze}/Makefile.arch | 4 -
.../nptl/sysdeps/{sh => microblaze}/dl-tls.h | 12 +-
.../nptl/sysdeps/{arm => microblaze}/libc-tls.c | 16 +--
.../{arm => microblaze}/pthread_spin_lock.c | 4 -
.../{arm => microblaze}/pthread_spin_trylock.c | 0
.../nptl/sysdeps/{mips => microblaze}/pthreaddef.h | 26 ++--
.../sysdeps/{mips => microblaze}/tcb-offsets.sym | 4 +-
libpthread/nptl/sysdeps/microblaze/tls.h | 159 +++++++++++++++++++++
.../unix/sysv/linux/{metag => microblaze}/Makefile | 0
.../sysv/linux/{arc => microblaze}/Makefile.arch | 6 -
.../{xtensa => microblaze}/bits/pthreadtypes.h | 75 +++++-----
.../linux/{arm => microblaze}/bits/semaphore.h | 8 +-
.../sysdeps/unix/sysv/linux/microblaze/clone.S | 4 +
.../sysv/linux/{arm => microblaze}/createthread.c | 0
.../unix/sysv/linux/{xtensa => microblaze}/fork.c | 0
.../sysv/linux/{arc => microblaze}/lowlevellock.h | 24 ++--
.../linux/{xtensa => microblaze}/pthread_once.c | 0
.../unix/sysv/linux/microblaze/sysdep-cancel.h | 139 ++++++++++++++++++
.../sysdeps/unix/sysv/linux/microblaze/vfork.S | 5 +
35 files changed, 673 insertions(+), 250 deletions(-)
copy libc/sysdeps/linux/{xtensa => microblaze}/__syscall_error.c (100%)
create mode 100644 libc/sysdeps/linux/microblaze/clone.S
delete mode 100644 libc/sysdeps/linux/microblaze/clone.c
delete mode 100644 libc/sysdeps/linux/microblaze/jmpbuf-offsets.h
copy libpthread/nptl/sysdeps/{arc => microblaze}/Makefile.arch (69%)
copy libpthread/nptl/sysdeps/{sh => microblaze}/dl-tls.h (69%)
copy libpthread/nptl/sysdeps/{arm => microblaze}/libc-tls.c (70%)
copy libpthread/nptl/sysdeps/{arm => microblaze}/pthread_spin_lock.c (88%)
copy libpthread/nptl/sysdeps/{arm => microblaze}/pthread_spin_trylock.c (100%)
copy libpthread/nptl/sysdeps/{mips => microblaze}/pthreaddef.h (62%)
copy libpthread/nptl/sysdeps/{mips => microblaze}/tcb-offsets.sym (52%)
create mode 100644 libpthread/nptl/sysdeps/microblaze/tls.h
copy libpthread/nptl/sysdeps/unix/sysv/linux/{metag => microblaze}/Makefile (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arc => microblaze}/Makefile.arch (71%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{xtensa => microblaze}/bits/pthreadtypes.h (77%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => microblaze}/bits/semaphore.h (90%)
create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arm => microblaze}/createthread.c (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{xtensa => microblaze}/fork.c (100%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{arc => microblaze}/lowlevellock.h (93%)
copy libpthread/nptl/sysdeps/unix/sysv/linux/{xtensa => microblaze}/pthread_once.c (100%)
create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h
create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index b259464..cb2d4d1 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -521,7 +521,6 @@ config UCLIBC_HAS_THREADS_NATIVE
!TARGET_hppa && \
!TARGET_ia64 && \
!TARGET_m68k && \
- !TARGET_microblaze && \
!TARGET_nds32 && \
!TARGET_nios2 && \
!TARGET_or1k && \
diff --git a/include/elf.h b/include/elf.h
index 17a6143..cca3d38 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -3234,30 +3234,37 @@ typedef Elf32_Addr Elf32_Conflict;
#define DT_C6000_NUM 4
-/* microblaze specific relocs */
-#define R_MICROBLAZE_NONE 0
-#define R_MICROBLAZE_32 1
-#define R_MICROBLAZE_32_PCREL 2
-#define R_MICROBLAZE_64_PCREL 3
-#define R_MICROBLAZE_32_PCREL_LO 4
-#define R_MICROBLAZE_64 5
-#define R_MICROBLAZE_32_LO 6
-#define R_MICROBLAZE_SRO32 7
-#define R_MICROBLAZE_SRW32 8
-#define R_MICROBLAZE_64_NONE 9
-#define R_MICROBLAZE_32_SYM_OP_SYM 10
-#define R_MICROBLAZE_GNU_VTINHERIT 11
-#define R_MICROBLAZE_GNU_VTENTRY 12
-#define R_MICROBLAZE_GOTPC_64 13 /* PC-relative GOT offset */
-#define R_MICROBLAZE_GOT_64 14 /* GOT entry offset */
-#define R_MICROBLAZE_PLT_64 15 /* PLT offset (PC-relative */
-#define R_MICROBLAZE_REL 16 /* adjust by program base */
-#define R_MICROBLAZE_JUMP_SLOT 17 /* create PLT entry */
-#define R_MICROBLAZE_GLOB_DAT 18 /* create GOT entry */
-#define R_MICROBLAZE_GOTOFF_64 19 /* offset relative to GOT */
-#define R_MICROBLAZE_GOTOFF_32 20 /* offset relative to GOT */
-#define R_MICROBLAZE_COPY 21 /* runtime copy */
-#define R_MICROBLAZE_NUM 22
+/* MicroBlaze relocations */
+#define R_MICROBLAZE_NONE 0 /* No reloc. */
+#define R_MICROBLAZE_32 1 /* Direct 32 bit. */
+#define R_MICROBLAZE_32_PCREL 2 /* PC relative 32 bit. */
+#define R_MICROBLAZE_64_PCREL 3 /* PC relative 64 bit. */
+#define R_MICROBLAZE_32_PCREL_LO 4 /* Low 16 bits of PCREL32. */
+#define R_MICROBLAZE_64 5 /* Direct 64 bit. */
+#define R_MICROBLAZE_32_LO 6 /* Low 16 bit. */
+#define R_MICROBLAZE_SRO32 7 /* Read-only small data area. */
+#define R_MICROBLAZE_SRW32 8 /* Read-write small data area. */
+#define R_MICROBLAZE_64_NONE 9 /* No reloc. */
+#define R_MICROBLAZE_32_SYM_OP_SYM 10 /* Symbol Op Symbol relocation. */
+#define R_MICROBLAZE_GNU_VTINHERIT 11 /* GNU C++ vtable hierarchy. */
+#define R_MICROBLAZE_GNU_VTENTRY 12 /* GNU C++ vtable member usage. */
+#define R_MICROBLAZE_GOTPC_64 13 /* PC-relative GOT offset. */
+#define R_MICROBLAZE_GOT_64 14 /* GOT entry offset. */
+#define R_MICROBLAZE_PLT_64 15 /* PLT offset (PC-relative). */
+#define R_MICROBLAZE_REL 16 /* Adjust by program base. */
+#define R_MICROBLAZE_JUMP_SLOT 17 /* Create PLT entry. */
+#define R_MICROBLAZE_GLOB_DAT 18 /* Create GOT entry. */
+#define R_MICROBLAZE_GOTOFF_64 19 /* 64 bit offset to GOT. */
+#define R_MICROBLAZE_GOTOFF_32 20 /* 32 bit offset to GOT. */
+#define R_MICROBLAZE_COPY 21 /* Runtime copy. */
+#define R_MICROBLAZE_TLS 22 /* TLS Reloc. */
+#define R_MICROBLAZE_TLSGD 23 /* TLS General Dynamic. */
+#define R_MICROBLAZE_TLSLD 24 /* TLS Local Dynamic. */
+#define R_MICROBLAZE_TLSDTPMOD32 25 /* TLS Module ID. */
+#define R_MICROBLAZE_TLSDTPREL32 26 /* TLS Offset Within TLS Block. */
+#define R_MICROBLAZE_TLSDTPREL64 27 /* TLS Offset Within TLS Block. */
+#define R_MICROBLAZE_TLSGOTTPREL32 28 /* TLS Offset From Thread Pointer. */
+#define R_MICROBLAZE_TLSTPREL32 29 /* TLS Offset From Thread Pointer. */
/* Meta relocations */
#define R_METAG_HIADDR16 0
diff --git a/ldso/ldso/dl-startup.c b/ldso/ldso/dl-startup.c
index 18a39ce..87f564f 100644
--- a/ldso/ldso/dl-startup.c
+++ b/ldso/ldso/dl-startup.c
@@ -319,8 +319,6 @@ DL_START(unsigned long args)
SEND_STDERR_DEBUG(strtab + sym->st_name);
SEND_STDERR_DEBUG("\n");
#endif
- } else {
- SEND_STDERR_DEBUG("relocating unknown symbol\n");
}
/* Use this machine-specific macro to perform the actual relocation. */
PERFORM_BOOTSTRAP_RELOC(rpnt, reloc_addr, symbol_addr, load_addr, sym);
diff --git a/ldso/ldso/microblaze/dl-debug.h b/ldso/ldso/microblaze/dl-debug.h
index 6fd7bd5..30b27bb 100644
--- a/ldso/ldso/microblaze/dl-debug.h
+++ b/ldso/ldso/microblaze/dl-debug.h
@@ -51,4 +51,12 @@ static const char * const _dl_reltypes_tab[] =
"R_MICROBLAZE_GOTOFF_64",
"R_MICROBLAZE_GOTOFF_32",
"R_MICROBLAZE_COPY",
+ "R_MICROBLAZE_TLS",
+ "R_MICROBLAZE_TLSGD",
+ "R_MICROBLAZE_TLSLD",
+ "R_MICROBLAZE_TLSDTPMOD32",
+ "R_MICROBLAZE_TLSDTPREL32",
+ "R_MICROBLAZE_TLSDTPREL64",
+ "R_MICROBLAZE_TLSGOTTPREL32",
+ "R_MICROBLAZE_TLSTPREL32",
};
diff --git a/ldso/ldso/microblaze/dl-startup.h b/ldso/ldso/microblaze/dl-startup.h
index ba15a87..720c53a 100644
--- a/ldso/ldso/microblaze/dl-startup.h
+++ b/ldso/ldso/microblaze/dl-startup.h
@@ -78,9 +78,6 @@ _dl_start_user:\n\
*/
#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
-/* The ld.so library requires relocations */
-#define ARCH_NEEDS_BOOTSTRAP_RELOCS
-
static __always_inline
void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
unsigned long symbol_addr, unsigned long load_addr, attribute_unused Elf32_Sym *symtab)
diff --git a/ldso/ldso/microblaze/dl-sysdep.h b/ldso/ldso/microblaze/dl-sysdep.h
index b293d27..4320027 100644
--- a/ldso/ldso/microblaze/dl-sysdep.h
+++ b/ldso/ldso/microblaze/dl-sysdep.h
@@ -1,5 +1,3 @@
-/* elf reloc code for the microblaze platform, based on glibc 2.3.6, dl-machine.h */
-
/*
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -15,37 +13,41 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/* Use reloca */
#define ELF_USES_RELOCA
#include <elf.h>
-
/* Initialise the GOT */
-#define INIT_GOT(GOT_BASE,MODULE) \
-do { \
- GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
- GOT_BASE[1] = (unsigned long) MODULE; \
+#define INIT_GOT(GOT_BASE,MODULE) \
+do { \
+ GOT_BASE[1] = (unsigned long) MODULE; \
+ GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
} while(0)
/* Here we define the magic numbers that this dynamic loader should accept */
-
#define MAGIC1 EM_MICROBLAZE
#undef MAGIC2
/* Used for error messages */
#define ELF_TARGET "microblaze"
+/* Need bootstrap relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
struct elf_resolve;
unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
#define elf_machine_type_class(type) \
- (((type) == R_MICROBLAZE_JUMP_SLOT) * ELF_RTYPE_CLASS_PLT \
+ (((type) == R_MICROBLAZE_JUMP_SLOT || \
+ (type) == R_MICROBLAZE_TLSDTPREL32 || \
+ (type) == R_MICROBLAZE_TLSDTPMOD32 || \
+ (type) == R_MICROBLAZE_TLSTPREL32) \
+ * ELF_RTYPE_CLASS_PLT \
| ((type) == R_MICROBLAZE_COPY) * ELF_RTYPE_CLASS_COPY)
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT. This must be inlined in a function which
uses global data. */
-static inline Elf32_Addr
+static __always_inline Elf32_Addr __attribute__ ((unused))
elf_machine_dynamic (void)
{
Elf32_Addr got_entry_0;
@@ -56,7 +58,6 @@ elf_machine_dynamic (void)
return got_entry_0;
}
-
/* Return the run-time load address of the shared object. */
static inline Elf32_Addr
elf_machine_load_address (void)
@@ -64,6 +65,7 @@ elf_machine_load_address (void)
/* Compute the difference between the runtime address of _DYNAMIC as seen
by a GOTOFF reference, and the link-time address found in the special
unrelocated first GOT entry. */
+
Elf32_Addr dyn;
__asm__ __volatile__ (
"addik %0,r20,_DYNAMIC@GOTOFF"
@@ -72,8 +74,6 @@ elf_machine_load_address (void)
return dyn - elf_machine_dynamic ();
}
-
-
static __always_inline void
elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr,
Elf32_Word relative_count)
diff --git a/ldso/ldso/microblaze/elfinterp.c b/ldso/ldso/microblaze/elfinterp.c
index 1f6aeff..33aef2f 100644
--- a/ldso/ldso/microblaze/elfinterp.c
+++ b/ldso/ldso/microblaze/elfinterp.c
@@ -214,16 +214,13 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
case R_MICROBLAZE_NONE:
case R_MICROBLAZE_64_NONE:
break;
-
case R_MICROBLAZE_64:
*reloc_addr = symbol_addr + rpnt->r_addend;
break;
-
case R_MICROBLAZE_32:
case R_MICROBLAZE_32_LO:
*reloc_addr = symbol_addr + rpnt->r_addend;
break;
-
case R_MICROBLAZE_32_PCREL:
case R_MICROBLAZE_32_PCREL_LO:
case R_MICROBLAZE_64_PCREL:
@@ -231,16 +228,25 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
case R_MICROBLAZE_SRW32:
*reloc_addr = symbol_addr + rpnt->r_addend;
break;
-
case R_MICROBLAZE_GLOB_DAT:
case R_MICROBLAZE_JUMP_SLOT:
*reloc_addr = symbol_addr + rpnt->r_addend;
break;
-/* Handled by elf_machine_relative */
case R_MICROBLAZE_REL:
*reloc_addr = (unsigned long)tpnt->loadaddr + rpnt->r_addend;
break;
-
+#if defined USE_TLS && USE_TLS
+ case R_MICROBLAZE_TLSDTPMOD32:
+ *reloc_addr = tls_tpnt->l_tls_modid;
+ break;
+ case R_MICROBLAZE_TLSDTPREL32:
+ *reloc_addr = symbol_addr;
+ break;
+ case R_MICROBLAZE_TLSTPREL32:
+ CHECK_STATIC_TLS ((struct link_map *) tls_tpnt);
+ *reloc_addr = tls_tpnt->l_tls_offset + symbol_addr + rpnt->r_addend;
+ break;
+#endif
case R_MICROBLAZE_COPY:
if (symbol_addr) {
#if defined (__SUPPORT_LD_DEBUG__)
@@ -250,7 +256,6 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
symname, sym_ref.sym->st_size,
symbol_addr, reloc_addr);
#endif
-
_dl_memcpy((char *)reloc_addr,
(char *)symbol_addr,
sym_ref.sym->st_size);
@@ -260,7 +265,6 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
_dl_dprintf(_dl_debug_file, "no symbol_addr to copy !?\n");
#endif
break;
-
default:
return -1; /* Calls _dl_exit(1). */
}
@@ -279,14 +283,12 @@ _dl_do_lazy_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)
{
int reloc_type;
- int symtab_index;
ElfW(Addr) *reloc_addr;
#if defined (__SUPPORT_LD_DEBUG__)
ElfW(Addr) old_val;
#endif
(void)scope;
- symtab_index = ELF_R_SYM(rpnt->r_info);
(void)strtab;
reloc_addr = (ElfW(Addr)*)(tpnt->loadaddr + rpnt->r_offset);
diff --git a/libc/sysdeps/linux/microblaze/Makefile.arch b/libc/sysdeps/linux/microblaze/Makefile.arch
index 6f1e9fb..b89f7f9 100644
--- a/libc/sysdeps/linux/microblaze/Makefile.arch
+++ b/libc/sysdeps/linux/microblaze/Makefile.arch
@@ -5,5 +5,5 @@
#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-CSRC-y := clone.c
-SSRC-y := setjmp.S __longjmp.S vfork.S
+CSRC-y := __syscall_error.c
+SSRC-y := setjmp.S __longjmp.S vfork.S clone.S
diff --git a/libc/sysdeps/linux/xtensa/__syscall_error.c b/libc/sysdeps/linux/microblaze/__syscall_error.c
similarity index 100%
copy from libc/sysdeps/linux/xtensa/__syscall_error.c
copy to libc/sysdeps/linux/microblaze/__syscall_error.c
diff --git a/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h b/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h
index ea767ab..321d699 100644
--- a/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h
+++ b/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h
@@ -6,8 +6,7 @@
#define _BITS_UCLIBC_ARCH_FEATURES_H
/* instruction used when calling abort() to kill yourself */
-/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/
-#undef __UCLIBC_ABORT_INSTRUCTION__
+#define __UCLIBC_ABORT_INSTRUCTION__ "brki r0, -1"
/* can your target use syscall6() for mmap ? */
#define __UCLIBC_MMAP_HAS_6_ARGS__
diff --git a/libc/sysdeps/linux/microblaze/clone.S b/libc/sysdeps/linux/microblaze/clone.S
new file mode 100644
index 0000000..69c2045
--- /dev/null
+++ b/libc/sysdeps/linux/microblaze/clone.S
@@ -0,0 +1,77 @@
+/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* clone() is even more special than fork() as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+#if defined __UCLIBC_HAS_THREADS__ && !defined __UCLIBC_HAS_LINUXTHREADS__
+#include <sysdep-cancel.h>
+#endif
+
+/* int clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+ pid_t *ptid, struct user_desc *tls, pid_t *ctid);
+
+ INCOMING: r5 (fn), r6 (child_stack), r7 (flags), r8 (arg), r9 (ptid)
+ r10 (tls), 28 (r1) ctid
+
+ OUTGOING:
+
+ linux: arch/microblaze/entry.S: sys_clone expects
+ r5 (flags) r6 (child stack) r7 (stack_size) r8 (ptid)r9 (ctid)
+ r10 (tls)
+*/
+
+ .text
+ENTRY (__clone)
+ addik r3,r0,-EINVAL
+ beqi r5,SYSCALL_ERROR_LABEL ; // Invalid func
+ beqi r6,SYSCALL_ERROR_LABEL ; // Invalid stack
+ addik r6,r6,-8
+ swi r5,r6,0 ; // Push fn onto child's stack
+ swi r8,r6,4 ; // Push arg for child
+ addk r5,r0,r7 ; // flags for clone() syscall
+ addk r7,r0,r0
+ addk r8,r0,r9 ; // parent tid ptr
+ lwi r9,r1,28 ; // child tid ptr
+ addik r12,r0,SYS_ify(clone)
+ brki r14,8
+ addk r0,r0,r0
+ addik r4,r0,-4095
+ cmpu r4,r4,r3
+ bgei r4,SYSCALL_ERROR_LABEL
+ beqi r3,L(thread_start)
+ rtsd r15,8
+ nop
+
+L(thread_start):
+ lwi r12,r1,0 ; // fn
+ lwi r5,r1,4 ; // arg
+ brald r15,r12
+ nop
+ addk r5,r0,r3
+ addik r12,r0,SYS_ify(exit)
+ brki r14,8
+ nop
+PSEUDO_END(__clone)
+
+libc_hidden_def (__clone)
+weak_alias (__clone,clone)
diff --git a/libc/sysdeps/linux/microblaze/clone.c b/libc/sysdeps/linux/microblaze/clone.c
deleted file mode 100644
index d921008..0000000
--- a/libc/sysdeps/linux/microblaze/clone.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2004 Atmel Corporation
- *
- * This file is subject to the terms and conditions of the GNU Lesser General
- * Public License. See the file "COPYING.LIB" in the main directory of this
- * archive for more details.
- */
-#include <sched.h>
-#include <errno.h>
-#include <sys/syscall.h>
-#include <unistd.h>
-
-int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...)
-{
- int rval = -EINVAL;
- if (fn && child_stack)
- rval = INTERNAL_SYSCALL(clone, 0, 2, flags, child_stack);
-
- if (rval == 0)
- {
- int exitCode = fn(arg);
- rval = INTERNAL_SYSCALL(exit, 0, 1, exitCode);
- }
-
- return rval;
-}
-
-#ifdef __NR_clone2
-int
-__clone2(int (*fn)(void *arg), void *child_stack, size_t stack_size,
- int flags, void *arg, ...)
-{
- int rval = -EINVAL;
- if (fn && child_stack)
- {
- rval = INTERNAL_SYSCALL(clone2, 0, 3, flags, child_stack, stack_size);
- }
-
- if (rval == 0)
- {
- int exitCode = fn(arg);
- rval = INTERNAL_SYSCALL(exit, 0, 1, exitCode);
- }
-
- return rval;
-}
-#endif
diff --git a/libc/sysdeps/linux/microblaze/jmpbuf-offsets.h b/libc/sysdeps/linux/microblaze/jmpbuf-offsets.h
deleted file mode 100644
index c6cccc7..0000000
--- a/libc/sysdeps/linux/microblaze/jmpbuf-offsets.h
+++ /dev/null
@@ -1,6 +0,0 @@
-/*
- * Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
-#define JB_SIZE (4 * 18)
diff --git a/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h b/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
index 2c1c079..155792b 100644
--- a/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
+++ b/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
@@ -10,3 +10,28 @@
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf)[0].__sp)
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <stdint.h>
+#include <unwind.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#undef _JMPBUF_UNWINDS
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)[0].__sp)
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ void *sp = (void *) regs[0].__sp;
+ return (uintptr_t) sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+
+#endif
diff --git a/libc/sysdeps/linux/microblaze/sysdep.h b/libc/sysdeps/linux/microblaze/sysdep.h
index 1f01a2a..a463d33 100644
--- a/libc/sysdeps/linux/microblaze/sysdep.h
+++ b/libc/sysdeps/linux/microblaze/sysdep.h
@@ -1,9 +1,25 @@
+/* Copyright (C) 2000-2016 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
#include <common/sysdep.h>
#ifdef __ASSEMBLER__
-/* Syntactic details of assembler. */
-
# define ALIGNARG(log2) log2
# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
@@ -22,4 +38,67 @@
# define L(name) $L##name
# endif
+/* We don't want the label for the error handler to be visible in the symbol
+ table when we define it here. */
+# ifdef __PIC__
+# define SYSCALL_ERROR_LABEL 0f
+# else
+# define SYSCALL_ERROR_LABEL __syscall_error
+# endif
+
+# define DO_CALL(syscall_name, args) \
+ addik r12,r0,SYS_ify (syscall_name); \
+ brki r14,8; \
+ addk r0,r0,r0;
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name) \
+ DO_CALL (syscall_name, args); \
+ addik r12,r0,-4095; \
+ cmpu r12,r12,r3; \
+ bgei r12,SYSCALL_ERROR_LABEL;
+
+# undef PSEUDO_END
+# define PSEUDO_END(name) \
+ SYSCALL_ERROR_HANDLER; \
+ END (name)
+
+#ifdef __PIC__
+# define SYSCALL_ERROR_LABEL_DCL 0
+# if defined _LIBC_REENTRANT
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL_DCL: \
+ addik r1,r1,-16; \
+ swi r15,r1,0; \
+ swi r20,r1,8; \
+ rsubk r3,r3,r0; \
+ swi r3,r1,12; \
+ mfs r20,rpc; \
+ addik r20,r20,_GLOBAL_OFFSET_TABLE_+8; \
+ brlid r15,__errno_location@PLT; \
+ nop; \
+ lwi r4,r1,12; \
+ swi r4,r3,0; \
+ lwi r20,r1,8; \
+ lwi r15,r1,0; \
+ addik r1,r1,16; \
+ rtsd r15,8; \
+ addik r3,r0,-1;
+# else /* !_LIBC_REENTRANT. */
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL_DCL: \
+ mfs r12,rpc; \
+ addik r12,r12,_GLOBAL_OFFSET_TABLE_+8; \
+ lwi r12,r12,errno@GOT; \
+ rsubk r3,r3,r0; \
+ swi r3,r12,0; \
+ rtsd r15,8; \
+ addik r3,r0,-1;
+# endif /* _LIBC_REENTRANT. */
+#else
+# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
+#endif /* PIC. */
+
#endif
diff --git a/libc/sysdeps/linux/microblaze/vfork.S b/libc/sysdeps/linux/microblaze/vfork.S
index cd60128..11b9e27 100644
--- a/libc/sysdeps/linux/microblaze/vfork.S
+++ b/libc/sysdeps/linux/microblaze/vfork.S
@@ -1,47 +1,44 @@
-/*
- * libc/sysdeps/linux/microblaze/vfork.S -- `vfork' syscall for linux/microblaze
- *
- * Copyright (C) 2003 John Williams <jwilliams(a)itee.uq.edu.au>
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles(a)gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Miles Bader <miles(a)gnu.org>
- * Microblaze port by John Williams
- */
-
-#include <sys/syscall.h>
+/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
/* Clone the calling process, but without copying the whole address space.
The calling process is suspended until the new process exits or is
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
and the process ID of the new process to the old process. */
- .globl __vfork
- .hidden __vfork
- .align 4
-__vfork:
- addi r12, r0, SYS_vfork
- brki r14, 0x08;
- addi r4, r3, 125 /* minimum err value */
- blti r4, 1f /* is r3 < -125? */
- bri 2f /* normal return */
-1: sub r3, r3, r0 /* r3 = -r3 */
-#ifdef __PIC__
- mfs r3,rpc
- addik r3,r3,_GLOBAL_OFFSET_TABLE_+8
- lwi r3,r3,C_SYMBOL_NAME(errno)@GOT
- sw r3, r0, r3
-#else
- swi r3, r0, C_SYMBOL_NAME(errno);
-#endif
- /* state restore etc */
-2: rtsd r15, 8 /* error return */
+ENTRY(__vfork)
+
+ DO_CALL (vfork, 0)
+ addik r12,r0,-4095
+ cmpu r12,r12,r3
+ bgei r12,1f
+ rtsd r15,8
nop
- .size __vfork, .-__vfork
-weak_alias(__vfork,vfork)
+1: rsubk r3,r3,r0
+ rtsd r15,8
+ addik r3,r0,-1 /* delay slot. */
+
+END(__vfork)
+
+weak_alias(__vfork, vfork)
libc_hidden_def(vfork)
diff --git a/libpthread/nptl/sysdeps/arc/Makefile.arch b/libpthread/nptl/sysdeps/microblaze/Makefile.arch
similarity index 69%
copy from libpthread/nptl/sysdeps/arc/Makefile.arch
copy to libpthread/nptl/sysdeps/microblaze/Makefile.arch
index 08ec7e7..b69fb48 100644
--- a/libpthread/nptl/sysdeps/arc/Makefile.arch
+++ b/libpthread/nptl/sysdeps/microblaze/Makefile.arch
@@ -1,8 +1,4 @@
# Makefile for uClibc NPTL
-#
-# Copyright (C) 2005 Steven J. Hill <sjhill(a)uclibc.org>
-#
# Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
-#
libc_arch_a_CSRC = libc-tls.c
diff --git a/libpthread/nptl/sysdeps/sh/dl-tls.h b/libpthread/nptl/sysdeps/microblaze/dl-tls.h
similarity index 69%
copy from libpthread/nptl/sysdeps/sh/dl-tls.h
copy to libpthread/nptl/sysdeps/microblaze/dl-tls.h
index f5f90be..5613e21 100644
--- a/libpthread/nptl/sysdeps/sh/dl-tls.h
+++ b/libpthread/nptl/sysdeps/microblaze/dl-tls.h
@@ -1,11 +1,11 @@
-/* Thread-local storage handling in the ELF dynamic linker. SH version.
- Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
+
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -16,7 +16,6 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-
/* Type used for the representation of TLS information in the GOT. */
typedef struct
{
@@ -24,5 +23,4 @@ typedef struct
unsigned long int ti_offset;
} tls_index;
-
extern void *__tls_get_addr (tls_index *ti);
diff --git a/libpthread/nptl/sysdeps/arm/libc-tls.c b/libpthread/nptl/sysdeps/microblaze/libc-tls.c
similarity index 70%
copy from libpthread/nptl/sysdeps/arm/libc-tls.c
copy to libpthread/nptl/sysdeps/microblaze/libc-tls.c
index 6576072..7f440fb 100644
--- a/libpthread/nptl/sysdeps/arm/libc-tls.c
+++ b/libpthread/nptl/sysdeps/microblaze/libc-tls.c
@@ -1,11 +1,11 @@
-/* Thread-local storage handling in the ELF dynamic linker. ARM version.
- Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
+
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,13 +19,13 @@
#include <sysdeps/generic/libc-tls.c>
#include <dl-tls.h>
-#if defined(USE_TLS) && USE_TLS
-
-/* On ARM, linker optimizations are not required, so __tls_get_addr
+/* On Microblaze, linker optimizations are not required, so __tls_get_addr
can be called even in statically linked binaries. In this case module
must be always 1 and PT_TLS segment exist in the binary, otherwise it
would not link. */
+#if defined(USE_TLS) && USE_TLS
+
void *
__tls_get_addr (tls_index *ti)
{
diff --git a/libpthread/nptl/sysdeps/arm/pthread_spin_lock.c b/libpthread/nptl/sysdeps/microblaze/pthread_spin_lock.c
similarity index 88%
copy from libpthread/nptl/sysdeps/arm/pthread_spin_lock.c
copy to libpthread/nptl/sysdeps/microblaze/pthread_spin_lock.c
index 77f5f50..e393a73 100644
--- a/libpthread/nptl/sysdeps/arm/pthread_spin_lock.c
+++ b/libpthread/nptl/sysdeps/microblaze/pthread_spin_lock.c
@@ -19,10 +19,6 @@
#include <atomic.h>
#include "pthreadP.h"
-/* A machine-specific version can define SPIN_LOCK_READS_BETWEEN_CMPXCHG
- to the number of plain reads that it's optimal to spin on between uses
- of atomic_compare_and_exchange_val_acq. If spinning forever is optimal
- then use -1. If no plain reads here would ever be optimal, use 0. */
#define SPIN_LOCK_READS_BETWEEN_CMPXCHG 1000
int
diff --git a/libpthread/nptl/sysdeps/arm/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/microblaze/pthread_spin_trylock.c
similarity index 100%
copy from libpthread/nptl/sysdeps/arm/pthread_spin_trylock.c
copy to libpthread/nptl/sysdeps/microblaze/pthread_spin_trylock.c
diff --git a/libpthread/nptl/sysdeps/mips/pthreaddef.h b/libpthread/nptl/sysdeps/microblaze/pthreaddef.h
similarity index 62%
copy from libpthread/nptl/sysdeps/mips/pthreaddef.h
copy to libpthread/nptl/sysdeps/microblaze/pthreaddef.h
index 6929882..47e87dd 100644
--- a/libpthread/nptl/sysdeps/mips/pthreaddef.h
+++ b/libpthread/nptl/sysdeps/microblaze/pthreaddef.h
@@ -1,10 +1,11 @@
-/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
+
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -15,24 +16,25 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <stdlib.h>
+#include <string.h>
+
/* Default stack size. */
-#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
+#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
/* Required stack pointer alignment at beginning. */
-#define STACK_ALIGN 16
+#define STACK_ALIGN 16
/* Minimal stack size after allocating thread descriptor and guard size. */
-#define MINIMAL_REST_STACK 2048
+#define MINIMAL_REST_STACK 2048
/* Alignment requirement for TCB. */
-#define TCB_ALIGNMENT 16
-
+#define TCB_ALIGNMENT 16
/* Location of current stack frame. */
-#define CURRENT_STACK_FRAME __builtin_frame_address (0)
-
+#define CURRENT_STACK_FRAME __builtin_frame_address (0)
/* XXX Until we have a better place keep the definitions here. */
#define __exit_thread_inline(val) \
- INLINE_SYSCALL (exit, 1, (val))
+INLINE_SYSCALL (exit, 1, (val))
diff --git a/libpthread/nptl/sysdeps/mips/tcb-offsets.sym b/libpthread/nptl/sysdeps/microblaze/tcb-offsets.sym
similarity index 52%
copy from libpthread/nptl/sysdeps/mips/tcb-offsets.sym
copy to libpthread/nptl/sysdeps/microblaze/tcb-offsets.sym
index e0e71dc..18afbee 100644
--- a/libpthread/nptl/sysdeps/mips/tcb-offsets.sym
+++ b/libpthread/nptl/sysdeps/microblaze/tcb-offsets.sym
@@ -4,8 +4,8 @@
--
-- Abuse tls.h macros to derive offsets relative to the thread register.
-#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
+#define thread_offsetof(mem) (long)(offsetof (struct pthread, mem) - sizeof (struct pthread))
-MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
+MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
PID_OFFSET thread_offsetof (pid)
TID_OFFSET thread_offsetof (tid)
diff --git a/libpthread/nptl/sysdeps/microblaze/tls.h b/libpthread/nptl/sysdeps/microblaze/tls.h
new file mode 100644
index 0000000..b5bcde9
--- /dev/null
+++ b/libpthread/nptl/sysdeps/microblaze/tls.h
@@ -0,0 +1,159 @@
+/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _TLS_H
+# define _TLS_H 1
+
+#ifndef __ASSEMBLER__
+
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+
+/* Type for the dtv. */
+typedef union dtv
+{
+ size_t counter;
+ struct
+ {
+ void *val;
+ bool is_static;
+ } pointer;
+} dtv_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+/* We require TLS support in the tools. */
+#define HAVE_TLS_SUPPORT 1
+#define HAVE___THREAD 1
+#define HAVE_TLS_MODEL_ATTRIBUTE 1
+
+/* Signal that TLS support is available. */
+#define USE_TLS 1
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information. */
+# include <sysdep.h>
+
+/* The TP points to the start of the thread blocks. */
+# define TLS_DTV_AT_TP 1
+
+/* Get the thread descriptor definition. */
+# include <../../descr.h>
+
+typedef struct
+{
+ dtv_t *dtv;
+ void *private;
+} tcbhead_t;
+
+#define READ_THREAD_POINTER() \
+ ({ register void *__microblaze_thread_area __asm__ ("r21"); \
+ __microblaze_thread_area; })
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN 16
+
+/* This is the size of the TCB. */
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
+
+/* This is the size we need before TCB. */
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN 16
+
+/* Install the dtv pointer. The pointer passed is to the element with
+ index -1 which contain the length. */
+# define INSTALL_DTV(tcbp, dtvp) \
+ (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
+
+/* Install new dtv for current thread. */
+# define INSTALL_NEW_DTV(dtv) \
+ (THREAD_DTV() = (dtv))
+
+/* Return dtv of given thread descriptor. */
+# define GET_DTV(tcbp) \
+ (((tcbhead_t *) (tcbp))->dtv)
+
+/* Code to initially initialize the thread pointer.
+ r21 is reserved for thread pointer. */
+# define TLS_INIT_TP(tcbp, secondcall) \
+ ({ __asm__ __volatile__ ("or r21,r0,%0" : : "r" ((void *)tcbp)); NULL; })
+
+# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1
+
+/* Return the address of the dtv for the current thread. */
+# define THREAD_DTV() \
+ (((tcbhead_t *) READ_THREAD_POINTER())->dtv)
+
+/* Return the thread descriptor for the current thread. */
+# define THREAD_SELF \
+ (((struct pthread *) READ_THREAD_POINTER()) - 1)
+
+/* Magic for libthread_db to know how to do THREAD_SELF. */
+# define DB_THREAD_SELF \
+ CONST_THREAD_AREA (32, sizeof (struct pthread))
+
+/* Read member of the thread descriptor directly. */
+# define THREAD_GETMEM(descr, member) (descr->member)
+
+/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
+# define THREAD_GETMEM_NC(descr, member, idx) \
+ (descr->member[idx])
+
+/* Set member of the thread descriptor directly. */
+# define THREAD_SETMEM(descr, member, value) \
+ (descr->member = (value))
+
+/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
+# define THREAD_SETMEM_NC(descr, member, idx, value) \
+ (descr->member[idx] = (value))
+
+/* Get and set the global scope generation counter in struct pthread. */
+# define THREAD_GSCOPE_FLAG_UNUSED 0
+# define THREAD_GSCOPE_FLAG_USED 1
+# define THREAD_GSCOPE_FLAG_WAIT 2
+# define THREAD_GSCOPE_RESET_FLAG() \
+ do \
+ { int __res \
+ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
+ THREAD_GSCOPE_FLAG_UNUSED); \
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
+ } \
+ while (0)
+# define THREAD_GSCOPE_SET_FLAG() \
+ do \
+ { \
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
+ atomic_write_barrier (); \
+ } \
+ while (0)
+# define THREAD_GSCOPE_WAIT() \
+ GL (dl_wait_lookup_done) ()
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* tls.h. */
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
similarity index 71%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
index fa5d530..77707a0 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
@@ -1,14 +1,8 @@
# Makefile for uClibc NPTL
-#
-# Copyright (C) 2006 Steven J. Hill <sjhill(a)uclibc.org>
-#
# Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
-#
libpthread_linux_arch_SSRC =
libpthread_linux_arch_CSRC = pthread_once.c
libc_linux_arch_CSRC = fork.c
libc_linux_arch_SSRC = clone.S vfork.S
-libc_linux_arch_SSRC-OMIT = waitpid.S
-
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/pthreadtypes.h
similarity index 77%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/pthreadtypes.h
index 5e44020..9e9e307 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/pthreadtypes.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
+
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -12,48 +13,46 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
+ License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _BITS_PTHREADTYPES_H
-#define _BITS_PTHREADTYPES_H 1
+# define _BITS_PTHREADTYPES_H 1
-#include <endian.h>
+# include <endian.h>
-#define __SIZEOF_PTHREAD_ATTR_T 36
-#define __SIZEOF_PTHREAD_MUTEX_T 24
-#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
-#define __SIZEOF_PTHREAD_COND_COMPAT_T 12
-#define __SIZEOF_PTHREAD_CONDATTR_T 4
-#define __SIZEOF_PTHREAD_RWLOCK_T 32
-#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
-#define __SIZEOF_PTHREAD_BARRIER_T 20
-#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+# define __SIZEOF_PTHREAD_ATTR_T 36
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_COND_COMPAT_T 12
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 32
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 20
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
/* Thread identifiers. The structure of the attribute type is not
exposed on purpose. */
typedef unsigned long int pthread_t;
-
union pthread_attr_t
{
char __size[__SIZEOF_PTHREAD_ATTR_T];
long int __align;
};
-#ifndef __have_pthread_attr_t
-typedef union pthread_attr_t pthread_attr_t;
-# define __have_pthread_attr_t 1
-#endif
+# ifndef __have_pthread_attr_t
+typedef union pthread_attr_t pthread_attr_t;
+# define __have_pthread_attr_t 1
+# endif
typedef struct __pthread_internal_slist
{
struct __pthread_internal_slist *__next;
} __pthread_slist_t;
-
/* Data structures for mutex handling. The structure of the attribute
type is not exposed on purpose. */
typedef union
@@ -77,13 +76,15 @@ typedef union
long int __align;
} pthread_mutex_t;
+/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
+#define __PTHREAD_SPINS 0
+
typedef union
{
char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
- long int __align;
+ int __align;
} pthread_mutexattr_t;
-
/* Data structure for conditional variable handling. The structure of
the attribute type is not exposed on purpose. */
typedef union
@@ -106,19 +107,16 @@ typedef union
typedef union
{
char __size[__SIZEOF_PTHREAD_CONDATTR_T];
- long int __align;
+ int __align;
} pthread_condattr_t;
-
-/* Keys for thread-specific data */
+/* Keys for thread-specific data. */
typedef unsigned int pthread_key_t;
-
-/* Once-only execution */
+/* Once-only execution. */
typedef int pthread_once_t;
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+# if defined __USE_UNIX98 || defined __USE_XOPEN2K
/* Data structure for read-write lock variable handling. The
structure of the attribute type is not exposed on purpose. */
typedef union
@@ -131,40 +129,40 @@ typedef union
unsigned int __writer_wakeup;
unsigned int __nr_readers_queued;
unsigned int __nr_writers_queued;
-#if __BYTE_ORDER == __BIG_ENDIAN
+# if __BYTE_ORDER == __BIG_ENDIAN
unsigned char __pad1;
unsigned char __pad2;
unsigned char __shared;
/* FLAGS must stay at this position in the structure to maintain
binary compatibility. */
unsigned char __flags;
-#else
+# else
/* FLAGS must stay at this position in the structure to maintain
binary compatibility. */
unsigned char __flags;
unsigned char __shared;
unsigned char __pad1;
unsigned char __pad2;
-#endif
+# endif
int __writer;
} __data;
char __size[__SIZEOF_PTHREAD_RWLOCK_T];
long int __align;
} pthread_rwlock_t;
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
typedef union
{
char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
long int __align;
} pthread_rwlockattr_t;
-#endif
-
+# endif
-#ifdef __USE_XOPEN2K
+# ifdef __USE_XOPEN2K
/* POSIX spinlock data type. */
typedef volatile int pthread_spinlock_t;
-
/* POSIX barriers data type. The structure of the type is
deliberately not exposed. */
typedef union
@@ -178,7 +176,6 @@ typedef union
char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
int __align;
} pthread_barrierattr_t;
-#endif
-
+# endif
-#endif /* bits/pthreadtypes.h */
+#endif /* bits/pthreadtypes.h. */
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/semaphore.h
similarity index 90%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/bits/semaphore.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/semaphore.h
index e68fbcc..ea05026 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/bits/semaphore.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/bits/semaphore.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002, 2005, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
+
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -19,13 +20,10 @@
# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
#endif
-
#define __SIZEOF_SEM_T 16
-
/* Value returned if `sem_open' failed. */
-#define SEM_FAILED ((sem_t *) 0)
-
+#define SEM_FAILED ((sem_t *) 0)
typedef union
{
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S
new file mode 100644
index 0000000..faa78d9
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S
@@ -0,0 +1,4 @@
+#define RESET_PID
+#include <tls.h>
+#include <tcb-offsets.h>
+#include "../../../../../../../libc/sysdeps/linux/microblaze/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/createthread.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arm/createthread.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/createthread.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/fork.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/fork.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/lowlevellock.h
similarity index 93%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/arc/lowlevellock.h
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/lowlevellock.h
index 44a1ac0..e8dce9d 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/lowlevellock.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/lowlevellock.h
@@ -79,21 +79,21 @@
#define lll_futex_timed_wait(futexp, val, timespec, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
+ long int __sysret; \
+ __sysret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
__lll_private_flag (FUTEX_WAIT, private), \
(val), (timespec)); \
- __ret; \
+ __sysret; \
})
#define lll_futex_wake(futexp, nr, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
+ long int __sysret; \
+ __sysret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
__lll_private_flag (FUTEX_WAKE, private), \
(nr), 0); \
- __ret; \
+ __sysret; \
})
#define lll_robust_dead(futexv, private) \
@@ -109,11 +109,11 @@
#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
+ long int __sysret; \
+ __sysret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
__lll_private_flag (FUTEX_CMP_REQUEUE, private),\
(nr_wake), (nr_move), (mutex), (val)); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
+ INTERNAL_SYSCALL_ERROR_P (__sysret, __err); \
})
@@ -121,12 +121,12 @@
#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
+ long int __sysret; \
+ __sysret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
__lll_private_flag (FUTEX_WAKE_OP, private), \
(nr_wake), (nr_wake2), (futexp2), \
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
+ INTERNAL_SYSCALL_ERROR_P (__sysret, __err); \
})
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/pthread_once.c
similarity index 100%
copy from libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c
copy to libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/pthread_once.c
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h
new file mode 100644
index 0000000..2af79ca
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h
@@ -0,0 +1,139 @@
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+#ifdef __ASSEMBLER__
+
+#undef ret
+#define ret
+
+# if !IS_IN_librt || !defined(PIC)
+# define AC_STACK_SIZE 16 /* space for r15, async_cancel arg and 2 temp words */
+# define AC_SET_GOT /* empty */
+# define AC_RESTORE_GOT /* empty */
+# else
+# define AC_STACK_SIZE 20 /* extra 4 bytes for r20 */
+# define AC_SET_GOT \
+ swi r20, r1, AC_STACK_SIZE-4; \
+ mfs r20, rpc; \
+ addik r20, r20, _GLOBAL_OFFSET_TABLE_+8;
+# define AC_RESTORE_GOT \
+ lwi r20, r1, AC_STACK_SIZE-4;
+# endif
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name) \
+ SINGLE_THREAD_P(r12); \
+ bnei r12, L(pseudo_cancel); \
+ .globl __##syscall_name##_nocancel; \
+ .type __##syscall_name##_nocancel,@function; \
+__##syscall_name##_nocancel: \
+ DO_CALL (syscall_name, args); \
+ addik r4, r0, -4095; \
+ cmpu r4, r4, r3; \
+ rsubk r3,r3,r0; \
+ rtsd r15,8; \
+ addik r3,r0,-1; \
+ rtsd r15, 8; \
+ nop; \
+ .size __##syscall_name##_nocancel, .-__##syscall_name##_nocancel; \
+L(pseudo_cancel): \
+ addik r1, r1, -AC_STACK_SIZE; \
+ swi r15, r1, 0; \
+ AC_SET_GOT \
+ DOCARGS_##args \
+ CENABLE; \
+ swi r3, r1, 8; \
+ UNDOCARGS_##args \
+ DO_CALL (syscall_name, args); \
+ swi r3, r1, 12; \
+ lwi r5, r1, 8; \
+ CDISABLE; \
+ lwi r3, r1, 12; \
+ lwi r15, r1, 0; \
+ AC_RESTORE_GOT \
+ addik r1, r1, AC_STACK_SIZE; \
+ addik r4, r0, -4095; \
+ cmpu r4, r4, r3; \
+ rsubk r3,r3,r0; \
+ rtsd r15,8; \
+ addik r3,r0,-1; \
+ rtsd r15, 8; \
+ nop;
+
+/*
+ * Macros to save/restore syscall arguments across CENABLE
+ * The arguments are saved into the caller's stack (original r1 + 4)
+ */
+
+# define DOCARGS_0
+# define DOCARGS_1 swi r5, r1, AC_STACK_SIZE + 4;
+# define DOCARGS_2 swi r6, r1, AC_STACK_SIZE + 8; DOCARGS_1
+# define DOCARGS_3 swi r7, r1, AC_STACK_SIZE + 12; DOCARGS_2
+# define DOCARGS_4 swi r8, r1, AC_STACK_SIZE + 16; DOCARGS_3
+# define DOCARGS_5 swi r9, r1, AC_STACK_SIZE + 20; DOCARGS_4
+# define DOCARGS_6 swi r10, r1, AC_STACK_SIZE + 24; DOCARGS_5
+
+# define UNDOCARGS_0
+# define UNDOCARGS_1 lwi r5, r1, AC_STACK_SIZE + 4;
+# define UNDOCARGS_2 UNDOCARGS_1 lwi r6, r1, AC_STACK_SIZE + 8;
+# define UNDOCARGS_3 UNDOCARGS_2 lwi r7, r1, AC_STACK_SIZE + 12;
+# define UNDOCARGS_4 UNDOCARGS_3 lwi r8, r1, AC_STACK_SIZE + 16;
+# define UNDOCARGS_5 UNDOCARGS_4 lwi r9, r1, AC_STACK_SIZE + 20;
+# define UNDOCARGS_6 UNDOCARGS_5 lwi r10, r1, AC_STACK_SIZE + 24;
+
+# ifdef PIC
+# define PSEUDO_JMP(sym) brlid r15, sym##@PLTPC; addk r0, r0, r0
+# else
+# define PSEUDO_JMP(sym) brlid r15, sym; addk r0, r0, r0
+# endif
+
+# if defined IS_IN_libpthread
+# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel)
+# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel)
+# define __local_multiple_threads __pthread_multiple_threads
+# elif !defined NOT_IN_libc
+# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel)
+# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel)
+# define __local_multiple_threads __libc_multiple_threads
+# elif defined IS_IN_librt
+# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel)
+# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel)
+# else
+# error Unsupported library
+# endif
+
+#define SINGLE_THREAD_P(reg) \
+ lwi reg, r0, MULTIPLE_THREADS_OFFSET(reg)
+
+#else /* !__ASSEMBLER__ */
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
+
+#endif /* __ASSEMBLER__ */
+
+#endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S
new file mode 100644
index 0000000..4336717
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S
@@ -0,0 +1,5 @@
+#define SAVE_PID
+#define RESTORE_PID
+#include <tls.h>
+#include <tcb-offsets.h>
+#include <libc/sysdeps/linux/microblaze/vfork.S>
hooks/post-receive
--
uClibc-ng - small C library for embedded systems
8 years
- 1
- 0
uclibc-ng 1.0.19 libdl symbols missing?
by Lance Fredrickson
It seems as if static libc is missing symbols for libdl in uclibc-ng
1.0.19. When trying to static link I get the typical 'undefined to
dl....' errors, but dynamic linking is successful.
Thanks,
Lance
8 years
- 3
- 7