uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.7-6-g312f482
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The branch, 1.0 has been updated via 312f482d395b591398296b5472a3884a12716cbd (commit) from c807e03c88504cf01508daa6dbae9e93dacfcf3c (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 312f482d395b591398296b5472a3884a12716cbd Author: Waldemar Brodkorb <wbx@openadk.org> Date: Sat Oct 17 11:17:07 2015 +0200 lm32: add new architecture Add support for FPGA systems from Lattice Semiconductor http://www.latticesemi.com Merge https://github.com/m-labs/uclibc-lm32.git ----------------------------------------------------------------------- Summary of changes: Rules.mak | 2 + extra/Configs/Config.in | 8 +++ extra/Configs/{Config.nios => Config.lm32} | 6 +- extra/Configs/defconfigs/lm32 | 1 + libc/sysdeps/linux/{alpha => lm32}/Makefile | 0 .../{Makefile.in => linux/lm32/Makefile.arch} | 3 +- libc/sysdeps/linux/lm32/__longjmp.S | 40 +++++++++++++ libc/sysdeps/linux/{i960 => lm32}/bits/endian.h | 4 +- .../linux/{microblaze => lm32}/bits/fcntl.h | 9 +-- libc/sysdeps/linux/lm32/bits/kernel_stat.h | 50 +++++++++++++++++ libc/sysdeps/linux/lm32/bits/kernel_types.h | 37 ++++++++++++ libc/sysdeps/linux/lm32/bits/setjmp.h | 24 ++++++++ libc/sysdeps/linux/{or1k => lm32}/bits/stackinfo.h | 4 +- libc/sysdeps/linux/lm32/bits/syscalls.h | 59 ++++++++++++++++++++ .../{v850 => lm32}/bits/uClibc_arch_features.h | 4 +- .../linux/{common => lm32}/bits/uClibc_page.h | 8 +-- libc/sysdeps/linux/{h8300 => lm32}/bits/wordsize.h | 0 libc/sysdeps/linux/lm32/clone.S | 52 +++++++++++++++++ libc/sysdeps/linux/lm32/crt1.S | 21 +++++++ libc/sysdeps/linux/lm32/crti.S | 17 ++++++ libc/sysdeps/linux/lm32/crtn.S | 11 ++++ libc/sysdeps/linux/lm32/setjmp.S | 53 ++++++++++++++++++ .../linux/{microblaze => lm32}/sys/procfs.h | 24 ++------ .../linux/{microblaze => lm32}/sys/ucontext.h | 7 ++- libc/sysdeps/linux/{powerpc => lm32}/sys/user.h | 5 +- libc/sysdeps/linux/lm32/vfork.S | 42 ++++++++++++++ 26 files changed, 446 insertions(+), 45 deletions(-) copy extra/Configs/{Config.nios => Config.lm32} (87%) create mode 100644 extra/Configs/defconfigs/lm32 copy libc/sysdeps/linux/{alpha => lm32}/Makefile (100%) copy libc/sysdeps/{Makefile.in => linux/lm32/Makefile.arch} (75%) create mode 100644 libc/sysdeps/linux/lm32/__longjmp.S copy libc/sysdeps/linux/{i960 => lm32}/bits/endian.h (92%) copy libc/sysdeps/linux/{microblaze => lm32}/bits/fcntl.h (96%) create mode 100644 libc/sysdeps/linux/lm32/bits/kernel_stat.h create mode 100644 libc/sysdeps/linux/lm32/bits/kernel_types.h create mode 100644 libc/sysdeps/linux/lm32/bits/setjmp.h copy libc/sysdeps/linux/{or1k => lm32}/bits/stackinfo.h (91%) create mode 100644 libc/sysdeps/linux/lm32/bits/syscalls.h copy libc/sysdeps/linux/{v850 => lm32}/bits/uClibc_arch_features.h (91%) copy libc/sysdeps/linux/{common => lm32}/bits/uClibc_page.h (76%) copy libc/sysdeps/linux/{h8300 => lm32}/bits/wordsize.h (100%) create mode 100644 libc/sysdeps/linux/lm32/clone.S create mode 100644 libc/sysdeps/linux/lm32/crt1.S create mode 100644 libc/sysdeps/linux/lm32/crti.S create mode 100644 libc/sysdeps/linux/lm32/crtn.S create mode 100644 libc/sysdeps/linux/lm32/setjmp.S copy libc/sysdeps/linux/{microblaze => lm32}/sys/procfs.h (85%) copy libc/sysdeps/linux/{microblaze => lm32}/sys/ucontext.h (86%) copy libc/sysdeps/linux/{powerpc => lm32}/sys/user.h (89%) create mode 100644 libc/sysdeps/linux/lm32/vfork.S diff --git a/Rules.mak b/Rules.mak index 4ba6fc5..558cadf 100644 --- a/Rules.mak +++ b/Rules.mak @@ -298,6 +298,7 @@ CPU_CFLAGS-y += $(CFLAG_-fmerge-all-constants) ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y) ifneq ($(TARGET_ARCH),bfin) +ifneq ($(TARGET_ARCH),lm32) ifneq ($(TARGET_ARCH),nios2) ifneq ($(TARGET_ARCH),sh) ifneq ($(TARGET_ARCH),c6x) @@ -309,6 +310,7 @@ endif endif endif endif +endif $(eval $(call check-gcc-var,-std=gnu99)) CPU_CFLAGS-y += $(CFLAG_-std=gnu99) diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index c954250..9737043 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -28,6 +28,7 @@ choice default TARGET_i386 if DESIRED_TARGET_ARCH = "i386" default TARGET_i960 if DESIRED_TARGET_ARCH = "i960" default TARGET_ia64 if DESIRED_TARGET_ARCH = "ia64" + default TARGET_lm32 if DESIRED_TARGET_ARCH = "lm32" default TARGET_m68k if DESIRED_TARGET_ARCH = "m68k" default TARGET_metag if DESIRED_TARGET_ARCH = "metag" default TARGET_microblaze if DESIRED_TARGET_ARCH = "microblaze" @@ -90,6 +91,9 @@ config TARGET_i386 config TARGET_ia64 bool "ia64" +config TARGET_lm32 + bool "lm32" + config TARGET_m68k bool "m68k" @@ -188,6 +192,10 @@ if TARGET_ia64 source "extra/Configs/Config.ia64" endif +if TARGET_lm32 +source "extra/Configs/Config.lm32" +endif + if TARGET_m68k source "extra/Configs/Config.m68k" endif diff --git a/extra/Configs/Config.nios b/extra/Configs/Config.lm32 similarity index 87% copy from extra/Configs/Config.nios copy to extra/Configs/Config.lm32 index 639cd35..8077267 100644 --- a/extra/Configs/Config.nios +++ b/extra/Configs/Config.lm32 @@ -5,13 +5,13 @@ config TARGET_ARCH string - default "nios" + default "lm32" config FORCE_OPTIONS_FOR_ARCH bool default y - select ARCH_LITTLE_ENDIAN + select ARCH_BIG_ENDIAN select ARCH_HAS_NO_MMU select ARCH_HAS_NO_LDSO - select ARCH_HAS_DEPRECATED_SYSCALLS select HAVE_NO_PIC + select ARCH_HAS_DEPRECATED_SYSCALLS diff --git a/extra/Configs/defconfigs/lm32 b/extra/Configs/defconfigs/lm32 new file mode 100644 index 0000000..63fb19d --- /dev/null +++ b/extra/Configs/defconfigs/lm32 @@ -0,0 +1 @@ +TARGET_lm32=y diff --git a/libc/sysdeps/linux/alpha/Makefile b/libc/sysdeps/linux/lm32/Makefile similarity index 100% copy from libc/sysdeps/linux/alpha/Makefile copy to libc/sysdeps/linux/lm32/Makefile diff --git a/libc/sysdeps/Makefile.in b/libc/sysdeps/linux/lm32/Makefile.arch similarity index 75% copy from libc/sysdeps/Makefile.in copy to libc/sysdeps/linux/lm32/Makefile.arch index 686cb72..eed9e7b 100644 --- a/libc/sysdeps/Makefile.in +++ b/libc/sysdeps/linux/lm32/Makefile.arch @@ -5,4 +5,5 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -include $(top_srcdir)libc/sysdeps/linux/Makefile.in +CSRC := +SSRC := clone.S setjmp.S __longjmp.S vfork.S diff --git a/libc/sysdeps/linux/lm32/__longjmp.S b/libc/sysdeps/linux/lm32/__longjmp.S new file mode 100644 index 0000000..cbb55f0 --- /dev/null +++ b/libc/sysdeps/linux/lm32/__longjmp.S @@ -0,0 +1,40 @@ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <libc-symbols.h> + +.text +.global C_SYMBOL_NAME(__longjmp) +.type C_SYMBOL_NAME(__longjmp),@function +.align 4 + +C_SYMBOL_NAME(__longjmp): + /* load registers relative from r5 (arg0) */ + lw r11, (r1+0) + lw r12, (r1+4) + lw r13, (r1+8) + lw r14, (r1+12) + lw r15, (r1+16) + lw r16, (r1+20) + lw r17, (r1+24) + lw r18, (r1+28) + lw r19, (r1+32) + lw r20, (r1+36) + lw r21, (r1+40) + lw r22, (r1+44) + lw r23, (r1+48) + lw r24, (r1+52) + lw r25, (r1+56) + lw gp, (r1+60) + lw fp, (r1+64) + lw sp, (r1+68) + lw ra, (r1+72) + + mv r1, r2 /* copy val */ + bne r1, r0, 1f + mvi r1, 1 /* val was zero, set it to 1 */ +1: + ret + +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/i960/bits/endian.h b/libc/sysdeps/linux/lm32/bits/endian.h similarity index 92% copy from libc/sysdeps/linux/i960/bits/endian.h copy to libc/sysdeps/linux/lm32/bits/endian.h index e2b1316..1acee18 100644 --- a/libc/sysdeps/linux/i960/bits/endian.h +++ b/libc/sysdeps/linux/lm32/bits/endian.h @@ -10,6 +10,4 @@ # error "Never use <bits/endian.h> directly; include <endian.h> instead." #endif -#define __BYTE_ORDER __LITTLE_ENDIAN - - +#define __BYTE_ORDER __BIG_ENDIAN diff --git a/libc/sysdeps/linux/microblaze/bits/fcntl.h b/libc/sysdeps/linux/lm32/bits/fcntl.h similarity index 96% copy from libc/sysdeps/linux/microblaze/bits/fcntl.h copy to libc/sysdeps/linux/lm32/bits/fcntl.h index e7651e8..44e8f3f 100644 --- a/libc/sysdeps/linux/microblaze/bits/fcntl.h +++ b/libc/sysdeps/linux/lm32/bits/fcntl.h @@ -13,8 +13,9 @@ 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/>. */ + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #ifndef _FCNTL_H # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." @@ -98,8 +99,8 @@ # define F_NOTIFY 1026 /* Request notfications on a directory. */ # define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with close-on-exit set on new fd. */ -# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */ -# define F_GETPIPE_SZ 1032 /* Get pipe page size array. */ +# define F_SETPIPE_SZ 1031 /* Set of pipe page size array */ +# define F_GETPIPE_SZ 1032 /* Get of pipe page size array */ #endif /* For F_[GET|SET]FL. */ diff --git a/libc/sysdeps/linux/lm32/bits/kernel_stat.h b/libc/sysdeps/linux/lm32/bits/kernel_stat.h new file mode 100644 index 0000000..c998b56 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/kernel_stat.h @@ -0,0 +1,50 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +#ifndef _LIBC +#error bits/kernel_stat.h is for internal uClibc use only! +#endif + +struct kernel_stat +{ + unsigned long st_dev; /* Device. */ + unsigned long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long st_rdev; /* Device number, if device. */ + unsigned long __pad1; + long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long st_blocks; /* Number 512-byte blocks allocated. */ + 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. */ + unsigned int __unused4; + unsigned int __unused5; +}; + +struct kernel_stat64 +{ + unsigned long long st_dev; /* Device. */ + unsigned long long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long long st_rdev; /* Device number, if device. */ + unsigned long long __pad1; + long long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long long st_blocks; /* Number 512-byte blocks allocated. */ + 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. */ + unsigned int __unused4; + unsigned int __unused5; +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/lm32/bits/kernel_types.h b/libc/sysdeps/linux/lm32/bits/kernel_types.h new file mode 100644 index 0000000..2c3c6df --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/kernel_types.h @@ -0,0 +1,37 @@ +#ifndef __ASM_GENERIC_POSIX_TYPES_H +#define __ASM_GENERIC_POSIX_TYPES_H + +typedef unsigned long __kernel_ino_t; +typedef unsigned int __kernel_mode_t; +typedef unsigned long __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_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; +typedef int __kernel_ssize_t; +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; +typedef unsigned short __kernel_gid16_t; +typedef __kernel_uid_t __kernel_uid32_t; +typedef __kernel_gid_t __kernel_gid32_t; + +typedef __kernel_uid_t __kernel_old_uid_t; +typedef __kernel_gid_t __kernel_old_gid_t; +typedef unsigned int __kernel_old_dev_t; + +typedef long long __kernel_loff_t; + +typedef struct { + int val[2]; +} __kernel_fsid_t; + +#endif /* __ASM_GENERIC_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/lm32/bits/setjmp.h b/libc/sysdeps/linux/lm32/bits/setjmp.h new file mode 100644 index 0000000..6798083 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/setjmp.h @@ -0,0 +1,24 @@ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined _SETJMP_H && !defined _PTHREAD_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct + { + int __regs[15]; /* callee-saved registers r11-r25 */ + void *__gp; /* global pointer */ + void *__fp; /* frame pointer */ + void *__sp; /* stack pointer */ + void *__ra; /* return address */ + } __jmp_buf[1]; +#endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[0].__sp) + +#endif diff --git a/libc/sysdeps/linux/or1k/bits/stackinfo.h b/libc/sysdeps/linux/lm32/bits/stackinfo.h similarity index 91% copy from libc/sysdeps/linux/or1k/bits/stackinfo.h copy to libc/sysdeps/linux/lm32/bits/stackinfo.h index 12d46a0..695616e 100644 --- a/libc/sysdeps/linux/or1k/bits/stackinfo.h +++ b/libc/sysdeps/linux/lm32/bits/stackinfo.h @@ -17,12 +17,12 @@ 02111-1307 USA. */ /* This file contains a bit of information about the stack allocation - of the processor. */ + of the processor. Since there is no general truth we can't say + anything here. */ #ifndef _STACKINFO_H #define _STACKINFO_H 1 -/* On or1k the stack grows down. */ #define _STACK_GROWS_DOWN 1 #endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/lm32/bits/syscalls.h b/libc/sysdeps/linux/lm32/bits/syscalls.h new file mode 100644 index 0000000..2956954 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/syscalls.h @@ -0,0 +1,59 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + + +#ifndef __ASSEMBLER__ + +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({ \ + LOAD_ARGS_##nr (args); \ + register int __ret __asm__("r1"); \ + register int _scno __asm__("r8") = name; \ + __asm__ __volatile__("scall" \ + : "=r" (__ret) \ + : "r"(_scno) ASM_ARGS_##nr \ + : __SYSCALL_CLOBBERS ); \ + __ret; \ + }) + +/* original port had ret >= -125 ?! */ +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + int _a1 = (int)(a1); \ + LOAD_ARGS_0(); \ + register int __a1 __asm__("r1") = _a1 +#define ASM_ARGS_1 ASM_ARGS_0, "0"(__a1) +#define LOAD_ARGS_2(a1, a2) \ + int _a2 = (int)(a2); \ + LOAD_ARGS_1(a1); \ + register int __a2 __asm__("r2") = _a2 +#define ASM_ARGS_2 ASM_ARGS_1, "r"(__a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + int _a3 = (int)(a3); \ + LOAD_ARGS_2(a1, a2); \ + register int __a3 __asm__("r3") = _a3 +#define ASM_ARGS_3 ASM_ARGS_2, "r"(__a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + int _a4 = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3); \ + register int __a4 __asm__("r4") = _a4 +#define ASM_ARGS_4 ASM_ARGS_3, "r"(__a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + int _a5 = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4); \ + register int __a5 __asm__("r5") = _a5 +#define ASM_ARGS_5 ASM_ARGS_4, "r"(__a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + int _a6 = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5); \ + register int __a6 __asm__("r6") = _a6 +#define ASM_ARGS_6 ASM_ARGS_5, "r"(__a6) + +#define __SYSCALL_CLOBBERS + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/v850/bits/uClibc_arch_features.h b/libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h similarity index 91% copy from libc/sysdeps/linux/v850/bits/uClibc_arch_features.h copy to libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h index b76b861..4bab547 100644 --- a/libc/sysdeps/linux/v850/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h @@ -12,8 +12,8 @@ /* can your target use syscall6() for mmap ? */ #define __UCLIBC_MMAP_HAS_6_ARGS__ -/* does your target align 64bit values in register pairs ? (32bit arches only) */ -#undef __UCLIBC_SYSCALL_ALIGN_64BIT__ +/* does your target use syscall4() for truncate64 ? (32bit arches only) */ +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__ /* does your target have a broken create_module() ? */ #undef __UCLIBC_BROKEN_CREATE_MODULE__ diff --git a/libc/sysdeps/linux/common/bits/uClibc_page.h b/libc/sysdeps/linux/lm32/bits/uClibc_page.h similarity index 76% copy from libc/sysdeps/linux/common/bits/uClibc_page.h copy to libc/sysdeps/linux/lm32/bits/uClibc_page.h index d1f9262..a2d7ea2 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_page.h +++ b/libc/sysdeps/linux/lm32/bits/uClibc_page.h @@ -11,16 +11,14 @@ * 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/>. + * License along with the GNU C Library; if not, write to the Free + * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307 USA. */ -/* Supply an architecture specific value for PAGE_SIZE and friends. */ - #ifndef _UCLIBC_PAGE_H #define _UCLIBC_PAGE_H -/* PAGE_SHIFT determines the page size -- in this case 4096 */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) diff --git a/libc/sysdeps/linux/h8300/bits/wordsize.h b/libc/sysdeps/linux/lm32/bits/wordsize.h similarity index 100% copy from libc/sysdeps/linux/h8300/bits/wordsize.h copy to libc/sysdeps/linux/lm32/bits/wordsize.h diff --git a/libc/sysdeps/linux/lm32/clone.S b/libc/sysdeps/linux/lm32/clone.S new file mode 100644 index 0000000..adc8b1a --- /dev/null +++ b/libc/sysdeps/linux/lm32/clone.S @@ -0,0 +1,52 @@ +#include <features.h> +#include <sys/syscall.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +#ifdef __NR_clone + +.text +.global clone +.type clone,@function +.align 4 + +clone: + be r1, r0, 2f + be r2, r0, 2f + + mvi r8, __NR_clone + scall + + mvi r3, -4095 + bgeu r1, r3, 1f + + be r1, r0, __thread_start + + ret + +__thread_start: + mvi fp, 0 + call r2 + + calli HIDDEN_JUMPTARGET(_exit) + + /* Stop the unstoppable. */ +9: + bi 9b + +2: + mvi r1, -EINVAL +1: + addi sp, sp, -8 + sw (sp+4), ra + sw (sp+8), r1 + calli __errno_location + lw r2, (sp+8) + lw ra, (sp+4) + sub r2, r0, r2 + sw (r1+0), r2 + mvi r1, -1 + addi sp, sp, 8 + ret + +#endif /* __NR_clone */ diff --git a/libc/sysdeps/linux/lm32/crt1.S b/libc/sysdeps/linux/lm32/crt1.S new file mode 100644 index 0000000..661a159 --- /dev/null +++ b/libc/sysdeps/linux/lm32/crt1.S @@ -0,0 +1,21 @@ +.text +.globl _start +.type _start,@function +.type main,@function +.type __uClibc_main,@function + +_start: + mvi fp, 0 /* clear fp */ + mvhi r1, hi(main) /* main */ + ori r1, r1, lo(main) + lw r2, (sp+0) /* argc */ + addi r3, sp, 4 /* argv */ + mvhi r4, hi(_init) /* app_init */ + ori r4, r4, lo(_init) + mvhi r5, hi(_fini) /* app_fini */ + ori r5, r5, lo(_fini) + mvi r6, 0 /* rtld_fini */ + mv r7, sp /* stack_end */ + + calli __uClibc_main + diff --git a/libc/sysdeps/linux/lm32/crti.S b/libc/sysdeps/linux/lm32/crti.S new file mode 100644 index 0000000..8ceb15b --- /dev/null +++ b/libc/sysdeps/linux/lm32/crti.S @@ -0,0 +1,17 @@ +.section .init +.global _init +.type _init,@function +.align 4 + +_init: + addi sp, sp, -4 + sw (sp+4), ra + +.section .fini +.global _fini +.type _fini,@function +.align 4 + +_fini: + addi sp, sp, -4 + sw (sp+4), ra diff --git a/libc/sysdeps/linux/lm32/crtn.S b/libc/sysdeps/linux/lm32/crtn.S new file mode 100644 index 0000000..93643ac --- /dev/null +++ b/libc/sysdeps/linux/lm32/crtn.S @@ -0,0 +1,11 @@ +.section .init + + lw ra, (sp+4) + addi sp, sp, 4 + ret + +.section .fini + + lw ra, (sp+4) + addi sp, sp, 4 + ret diff --git a/libc/sysdeps/linux/lm32/setjmp.S b/libc/sysdeps/linux/lm32/setjmp.S new file mode 100644 index 0000000..6badd80 --- /dev/null +++ b/libc/sysdeps/linux/lm32/setjmp.S @@ -0,0 +1,53 @@ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <libc-symbols.h> + +.text +.global C_SYMBOL_NAME(setjmp) +.type C_SYMBOL_NAME(setjmp),@function +.align 4 + +C_SYMBOL_NAME(setjmp): + mvi r2, 1 /* save the signal mask */ + bi C_SYMBOL_NAME(__sigsetjmp) + +.text +.global C_SYMBOL_NAME(_setjmp) +.type C_SYMBOL_NAME(_setjmp),@function +.align 4 + +C_SYMBOL_NAME(_setjmp): + mvi r2, 0 /* don't save the signal mask */ + bi C_SYMBOL_NAME(__sigsetjmp) + +.text +.global C_SYMBOL_NAME(__sigsetjmp) +.type C_SYMBOL_NAME(__sigsetjmp),@function +.align 4 + +C_SYMBOL_NAME(__sigsetjmp): + /* save registers relative to r1 (arg0) */ + sw (r1+0), r11 + sw (r1+4), r12 + sw (r1+8), r13 + sw (r1+12), r14 + sw (r1+16), r15 + sw (r1+20), r16 + sw (r1+24), r17 + sw (r1+28), r18 + sw (r1+32), r19 + sw (r1+36), r20 + sw (r1+40), r21 + sw (r1+44), r22 + sw (r1+48), r23 + sw (r1+52), r24 + sw (r1+56), r25 + sw (r1+60), gp + sw (r1+64), fp + sw (r1+68), sp + sw (r1+72), ra + + /* make a tail call to __sigjmp_save; it takes the same args */ + bi C_SYMBOL_NAME(__sigjmp_save) diff --git a/libc/sysdeps/linux/microblaze/sys/procfs.h b/libc/sysdeps/linux/lm32/sys/procfs.h similarity index 85% copy from libc/sysdeps/linux/microblaze/sys/procfs.h copy to libc/sysdeps/linux/lm32/sys/procfs.h index eca7828..c545fe7 100644 --- a/libc/sysdeps/linux/microblaze/sys/procfs.h +++ b/libc/sysdeps/linux/lm32/sys/procfs.h @@ -12,8 +12,9 @@ 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/>. */ + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #ifndef _SYS_PROCFS_H #define _SYS_PROCFS_H 1 @@ -38,24 +39,7 @@ typedef unsigned long elf_greg_t; #endif -/* This is exactly the same as `struct pt_regs' in the kernel. */ -struct elf_gregset -{ - elf_greg_t gpr[32]; /* General purpose registers. */ - - elf_greg_t pc; /* program counter */ - elf_greg_t psw; /* program status word */ - elf_greg_t ear; /* Exception address register */ - elf_greg_t esr; /* Excep[tion Status Register */ - elf_greg_t fsr; /* FPU Status register */ - - elf_greg_t kernel_mode; /* 1 if in `kernel mode', 0 if user mode */ - elf_greg_t single_step; /* 1 if in single step mode */ -}; - -#ifndef ELF_NGREG -#define ELF_NGREG (sizeof (struct elf_gregset) / sizeof(elf_greg_t)) -#endif +#define ELF_NGREG 32 #ifndef ELF_GREGSET_T #define ELF_GREGSET_T diff --git a/libc/sysdeps/linux/microblaze/sys/ucontext.h b/libc/sysdeps/linux/lm32/sys/ucontext.h similarity index 86% copy from libc/sysdeps/linux/microblaze/sys/ucontext.h copy to libc/sysdeps/linux/lm32/sys/ucontext.h index 7c5e303..366158f 100644 --- a/libc/sysdeps/linux/microblaze/sys/ucontext.h +++ b/libc/sysdeps/linux/lm32/sys/ucontext.h @@ -12,8 +12,9 @@ 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/>. */ + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #ifndef _SYS_UCONTEXT_H #define _SYS_UCONTEXT_H 1 @@ -30,7 +31,7 @@ typedef struct sigcontext mcontext_t; /* Userlevel context. */ typedef struct ucontext { - unsigned long int uc_flags; + unsigned long uc_flags; struct ucontext *uc_link; stack_t uc_stack; mcontext_t uc_mcontext; diff --git a/libc/sysdeps/linux/powerpc/sys/user.h b/libc/sysdeps/linux/lm32/sys/user.h similarity index 89% copy from libc/sysdeps/linux/powerpc/sys/user.h copy to libc/sysdeps/linux/lm32/sys/user.h index 5fa3745..e8a8aaa 100644 --- a/libc/sysdeps/linux/powerpc/sys/user.h +++ b/libc/sysdeps/linux/lm32/sys/user.h @@ -12,8 +12,9 @@ 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/>. */ + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #ifndef _SYS_USER_H diff --git a/libc/sysdeps/linux/lm32/vfork.S b/libc/sysdeps/linux/lm32/vfork.S new file mode 100644 index 0000000..f651ba6 --- /dev/null +++ b/libc/sysdeps/linux/lm32/vfork.S @@ -0,0 +1,42 @@ +#include <features.h> + +#define _ERRNO_H +#include <bits/errno.h> +#include <asm/unistd.h> +#define _SIGNAL_H +#include <bits/signum.h> + +#define CLONE_VM 0x00000100 /* set if VM shared between processes */ +#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to */ + +.text +.global __vfork +.hidden __vfork +.type __vfork,%function +.align 4 + +__vfork: + mvi r2, 0 + mvi r3, CLONE_VFORK | CLONE_VM | SIGCHLD + mvi r8, __NR_clone + scall + + mvi r2, -4096 + bgeu r2, r1, 1f + + addi sp, sp, -8 + sw (sp+4), ra + sw (sp+8), r1 + calli __errno_location + lw r2, (sp+8) + lw ra, (sp+4) + sub r2, r0, r2 + sw (r1+0), r2 + addi sp, sp, 8 + mvi r1, -1 +1: + ret + +.size __vfork,.-__vfork +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) hooks/post-receive -- uClibc-ng - small C library for embedded systems
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