uClibc-ng - small C library for embedded systems branch upstream updated. f1f98784e65ce9621a570af50998b1940e7fb81d
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- Log ----------------------------------------------------------------- commit f1f98784e65ce9621a570af50998b1940e7fb81d Author: Alexey Brodkin abrodkin@synopsys.com Date: Wed Apr 22 09:31:38 2015 +0530
ARC: enable more options to satisfy build requirements of applications
As reported by Buildroot autobuilder following options were missing:
* Libutil stub (UCLIBC_HAS_LIBUTIL option) http://autobuild.buildroot.org/results/ce3/ce39eb9b9ece0968563641fb2207099d1...
* Program_invocation_name (UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y) http://autobuild.buildroot.org/results/154/1546d909e606daefd41b87dece94d642c... http://autobuild.buildroot.org/results/bd5/bd54581d7b0cc73bc501072d27e870a44...
* Ifaddrd support (UCLIBC_SUPPORT_AI_ADDRCONFIG=y) http://autobuild.buildroot.org/results/134/134e78ef1fa87f7fbf26c23ec5dfc6878...
* Libnsl (UCLIBC_HAS_LIBNSL_STUB=y) http://autobuild.buildroot.net/results/331/331ed781b422448205fb9e7c9730ec0c4... http://autobuild.buildroot.net/results/402/402d64965ac7ac6e1d4e1990080394958... http://autobuild.buildroot.net/results/960/9605bac2972d3e3d3fb91947ae6921e89... http://autobuild.buildroot.net/results/6b6/6b61ea80a3a6dcead233c4b408eba8b8d...
* UTMP got reworked recently, which breaks packages such as busybox, gdbserver etc so enable that too
Enabling mentioned options to make sure more packages could be built with ARC pre-built uClibc tools.
Note UCLIBC_USE_NETLINK is a prerequisite for UCLIBC_SUPPORT_AI_ADDRCONFIG.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Anton Kolesov akolesov@synopsys.com Signed-off-by: Vineet Gupta vgupta@synopsys.com Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit 6173ee4f61b1c7a9c2c670952f9a18345e614c90 Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 22:57:45 2015 +0200
buildsys: pregen depends on xlocale
since ae9e3f46 sched.h pulls in stdlib.h (for malloc() and free()) and thus also xlocale..
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit e71fc570caec4f2d4bbe729dfe9eb41bfe5a732a Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 22:41:46 2015 +0200
arm: Add BX and BXC macros
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit 298f58e073b2782bd264edea969769b7b5e7cf41 Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 22:38:29 2015 +0200
arm: Fix POP_RET for armv4t && interworking
It seems the condition was reversed which lead to e.g. arm-920t being confused
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit 7c78a5c52b2db6bb0d6e163b38897a003a289958 Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 21:37:30 2015 +0200
NPTL: Rename a variable
There seems to be a bug in gold with static TLS at least on x86_64 (?)
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit 8e04c064c4cb39bae5e5bec166c762d2fc88cb11 Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 21:36:26 2015 +0200
ldso: PRELINK: Remove surplus newline
in early debugging code
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
commit 9058b43530b6be9146ea3448e8a5f642c09a1818 Author: Bernhard Reutner-Fischer rep.dot.nop@gmail.com Date: Sat Apr 18 20:24:44 2015 +0200
buildsys: try to merge all constants
Saves a couple of bytes
Signed-off-by: Bernhard Reutner-Fischer rep.dot.nop@gmail.com
-----------------------------------------------------------------------
Summary of changes: Rules.mak | 2 ++ extra/Configs/defconfigs/arc/arcv2_defconfig | 6 +++++ extra/Configs/defconfigs/arc/defconfig | 6 +++++ extra/locale/Makefile.in | 4 +-- include/libc-symbols.h | 2 +- ldso/include/ldsodefs.h | 2 ++ ldso/ldso/arm/dl-startup.h | 12 ++------- ldso/ldso/arm/resolve.S | 18 +++++--------- ldso/ldso/dl-tls.c | 9 +++++-- ldso/ldso/ldso.c | 3 ++- libc/misc/pthread/tsd.c | 11 +++++++-- libc/string/arm/_memcpy.S | 18 +++----------- libc/string/arm/memcmp.S | 12 ++------- libc/string/arm/memset.S | 13 ++-------- libc/string/arm/strcmp.S | 6 +---- libc/string/arm/strlen.S | 7 +----- libc/sysdeps/linux/arm/__longjmp.S | 7 +----- libc/sysdeps/linux/arm/bits/arm_asm.h | 12 ++++----- libc/sysdeps/linux/arm/bits/arm_bx.h | 12 ++++++--- libc/sysdeps/linux/arm/bits/uClibc_arch_features.h | 26 ++++++++++++++++++++ libc/sysdeps/linux/arm/clone.S | 6 +---- libc/sysdeps/linux/arm/mmap64.S | 6 +---- libc/sysdeps/linux/arm/syscall-eabi.S | 8 ++---- libc/sysdeps/linux/arm/sysdep.h | 14 +++-------- libc/sysdeps/linux/arm/vfork.S | 12 ++------- 25 files changed, 105 insertions(+), 129 deletions(-)
diff --git a/Rules.mak b/Rules.mak index 71ceb90..aa2e3a7 100644 --- a/Rules.mak +++ b/Rules.mak @@ -296,6 +296,8 @@ CPU_CFLAGS-y := -funsigned-char -fno-builtin
$(eval $(call check-gcc-var,-fno-asm)) CPU_CFLAGS-y += $(CFLAG_-fno-asm) +$(eval $(call check-gcc-var,-fmerge-all-constants)) +CPU_CFLAGS-y += $(CFLAG_-fmerge-all-constants)
LDADD_LIBFLOAT= ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y) diff --git a/extra/Configs/defconfigs/arc/arcv2_defconfig b/extra/Configs/defconfigs/arc/arcv2_defconfig index 7c4694e..1e204aa 100644 --- a/extra/Configs/defconfigs/arc/arcv2_defconfig +++ b/extra/Configs/defconfigs/arc/arcv2_defconfig @@ -10,16 +10,22 @@ LDSO_RUNPATH=y UCLIBC_HAS_THREADS_NATIVE=y PTHREADS_DEBUG_SUPPORT=y UCLIBC_HAS_OBSTACK=y +UCLIBC_HAS_UTMPX=y +UCLIBC_HAS_UTMP=y UCLIBC_SUSV2_LEGACY=y UCLIBC_SUSV3_LEGACY=y UCLIBC_SUSV4_LEGACY=y UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y +UCLIBC_HAS_LIBUTIL=y UCLIBC_HAS_OBSOLETE_BSD_SIGNAL=y UCLIBC_SV4_DEPRECATED=y UCLIBC_HAS_RPC=y UCLIBC_HAS_FULL_RPC=y +UCLIBC_USE_NETLINK=y +UCLIBC_SUPPORT_AI_ADDRCONFIG=y UCLIBC_HAS_RESOLVER_SUPPORT=y UCLIBC_HAS_LIBRESOLV_STUB=y +UCLIBC_HAS_LIBNSL_STUB=y UCLIBC_HAS_LOCALE=y UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y UCLIBC_HAS_NFTW=y diff --git a/extra/Configs/defconfigs/arc/defconfig b/extra/Configs/defconfigs/arc/defconfig index eebb115..994abeb 100644 --- a/extra/Configs/defconfigs/arc/defconfig +++ b/extra/Configs/defconfigs/arc/defconfig @@ -9,16 +9,22 @@ LDSO_RUNPATH=y UCLIBC_HAS_THREADS_NATIVE=y PTHREADS_DEBUG_SUPPORT=y UCLIBC_HAS_OBSTACK=y +UCLIBC_HAS_UTMPX=y +UCLIBC_HAS_UTMP=y UCLIBC_SUSV2_LEGACY=y UCLIBC_SUSV3_LEGACY=y UCLIBC_SUSV4_LEGACY=y UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y +UCLIBC_HAS_LIBUTIL=y UCLIBC_HAS_OBSOLETE_BSD_SIGNAL=y UCLIBC_SV4_DEPRECATED=y UCLIBC_HAS_RPC=y UCLIBC_HAS_FULL_RPC=y +UCLIBC_USE_NETLINK=y +UCLIBC_SUPPORT_AI_ADDRCONFIG=y UCLIBC_HAS_RESOLVER_SUPPORT=y UCLIBC_HAS_LIBRESOLV_STUB=y +UCLIBC_HAS_LIBNSL_STUB=y UCLIBC_HAS_LOCALE=y UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y UCLIBC_HAS_NFTW=y diff --git a/extra/locale/Makefile.in b/extra/locale/Makefile.in index 3834c5c..1a2305b 100644 --- a/extra/locale/Makefile.in +++ b/extra/locale/Makefile.in @@ -46,7 +46,7 @@ locale_OBJ := $(locale_OUT)/locale_data.o
CFLAGS-locale_data.c := -D__WCHAR_ENABLED -I$(locale_OUT) -I$(locale_DIR)
-#headers-$(UCLIBC_HAS_LOCALE) += $(locale_headers-y) +headers_dep += $(locale_headers-y) headers: $(locale_headers-y)
libc-$(UCLIBC_HAS_LOCALE) += $(locale_OBJ) @@ -68,7 +68,7 @@ $(locale_OUT)%.s: $(locale_OUT)%.S FORCE ; $(compile.s) $(locale_OUT)%.dep:
-locale_headers: headers $(top_builddir)include/bits/uClibc_locale_data.h +locale_headers: $(top_builddir)include/bits/uClibc_locale_data.h
# make sure that the host system has locales (this check is ok for uClibc/glibc) # we do not know though which locales were really enabled for libc at build time diff --git a/include/libc-symbols.h b/include/libc-symbols.h index a87cde6..97463ac 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -111,7 +111,7 @@ /* Indirect stringification. Doing two levels allows * the parameter to be a macro itself. */ -#define __stringify_1(x) #x +#define __stringify_1(x...) #x #define __stringify(x) __stringify_1(x)
#ifdef __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ diff --git a/ldso/include/ldsodefs.h b/ldso/include/ldsodefs.h index 4063d00..0feed89 100644 --- a/ldso/include/ldsodefs.h +++ b/ldso/include/ldsodefs.h @@ -106,7 +106,9 @@ EXTERN size_t _dl_tls_static_used; /* Alignment requirement of the static TLS block. */ EXTERN size_t _dl_tls_static_align; /* Function pointer for catching TLS errors. */ +#if 1 /* def _LIBC_REENTRANT */ EXTERN void **(*_dl_error_catch_tsd) (void) __attribute__ ((const)); +#endif
/* Number of additional entries in the slotinfo array of each slotinfo list element. A large number makes it almost certain take we never diff --git a/ldso/ldso/arm/dl-startup.h b/ldso/ldso/arm/dl-startup.h index df2c824..eb2a9a2 100644 --- a/ldso/ldso/arm/dl-startup.h +++ b/ldso/ldso/arm/dl-startup.h @@ -47,11 +47,7 @@ __asm__( " ldr r0, .L_FINI_PROC\n" " ldr r0, [sl, r0]\n" " @ jump to the user_s entry point\n" -#if defined(__USE_BX__) - " bx r6\n" -#else - " mov pc, r6\n" -#endif + " " __stringify(BX(r6)) "\n" ".L_GET_GOT:\n" " .word _GLOBAL_OFFSET_TABLE_ - .L_GOT_GOT - 4\n" ".L_SKIP_ARGS:\n" @@ -113,11 +109,7 @@ __asm__( " ldr r0, .L_FINI_PROC\n" " ldr r0, [r7, r0]\n" " @ jump to the user_s entry point\n" -#if defined(__USE_BX__) - " bx r6\n" -#else - " mov pc, r6\n" -#endif + " " __stringify(BX(r6)) "\n" "\n\n" ".L_GET_GOT:\n" " .word _GLOBAL_OFFSET_TABLE_ - .L_GOT_GOT - 4\n" diff --git a/ldso/ldso/arm/resolve.S b/ldso/ldso/arm/resolve.S index c1caf9a..7e0058e 100644 --- a/ldso/ldso/arm/resolve.S +++ b/ldso/ldso/arm/resolve.S @@ -90,12 +90,10 @@ * dl-startup.c). */
-#include <sys/syscall.h> +#include <features.h> #include <bits/arm_asm.h> #include <bits/arm_bx.h>
-#include <features.h> - #define sl r10 #define fp r11 #define ip r12 @@ -114,8 +112,8 @@ _dl_linux_resolve: @ function must branch to the real function, and that expects @ r0-r3 and lr to be as they were before the whole PLT stuff - @ ip can be trashed. - @ This routine is called after pushing lr, so we must push an odd - @ number of words to keep the stack correctly aligned. + @ This routine is called after pushing lr, so we must push an odd + @ number of words to keep the stack correctly aligned.
stmdb sp!, {r0, r1, r2, r3, r4} ldr r0, [lr, #-4] @ r0 : = [lr-4] (GOT_TABLE[1]) @@ -124,16 +122,12 @@ _dl_linux_resolve: @ ~x = -x-1, therefore ~(r1>>2) = (-((lr-ip)>>2)-1) @ = - ((lr-ip)/4) - 1 = (ip - lr - 4)/4, as required
- bl _dl_linux_resolver + bl _dl_linux_resolver
- mov ip, r0 + mov ip, r0 ldmia sp!, {r0, r1, r2, r3, r4, lr}
-#if defined(__USE_BX__) - bx ip -#else - mov pc,ip -#endif + BX(ip) #else @ In the thumb case _dl_linux_resolver is thumb. If a bl is used @ from arm code the linker will insert a stub call which, with diff --git a/ldso/ldso/dl-tls.c b/ldso/ldso/dl-tls.c index 6679693..05193a8 100644 --- a/ldso/ldso/dl-tls.c +++ b/ldso/ldso/dl-tls.c @@ -950,8 +950,13 @@ static bool tls_init_tp_called; void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void) { - static void *data; - return &data; + static +#if 0 /* def ARCH_NEEDS_BOOTSTRAP_RELOCS */ + /* If we have to do bootstrap relocs anyway we might as well */ + __thread +# endif + void *__tsd_data; + return &__tsd_data; }
#ifdef SHARED diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c index 5619629..f38f9e3 100644 --- a/ldso/ldso/ldso.c +++ b/ldso/ldso/ldso.c @@ -1196,6 +1196,7 @@ of this helper program; chances are you did not intend to run this program.\n\ } #endif #ifdef __UCLIBC_HAS_SSP__ + _dl_debug_early("Setting up SSP guards\n"); /* Set up the stack checker's canary. */ stack_chk_guard = _dl_setup_stack_chk_guard (); # ifdef THREAD_SET_STACK_GUARD @@ -1268,7 +1269,7 @@ of this helper program; chances are you did not intend to run this program.\n\
}
- _dl_debug_early ("\nprelink checking: %s\n", prelinked ? "ok" : "failed"); + _dl_debug_early ("prelink checking: %s\n", prelinked ? "ok" : "failed");
if (prelinked) { if (_dl_loaded_modules->dynamic_info[DT_GNU_CONFLICT_IDX]) { diff --git a/libc/misc/pthread/tsd.c b/libc/misc/pthread/tsd.c index 586ead3..3598b89 100644 --- a/libc/misc/pthread/tsd.c +++ b/libc/misc/pthread/tsd.c @@ -1,11 +1,18 @@ +/* + * Copyright (C) 2006 by Steven J. Hill sjhill@realitydiluted.com + * + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. + */ /* libpthread sets _dl_error_catch_tsd to point to this function. We define it here instead of in libpthread so that it doesn't need to have a TLS segment of its own just for this one pointer. */
+#include <features.h> + void **__libc_dl_error_tsd(void) __attribute__ ((const)); void ** __attribute__ ((const)) __libc_dl_error_tsd (void) { - static __thread void *data __attribute__ ((tls_model ("initial-exec"))); - return &data; + static __thread void *__tsd_data attribute_tls_model_ie; + return &__tsd_data; } diff --git a/libc/string/arm/_memcpy.S b/libc/string/arm/_memcpy.S index c59f5b8..2999e8e 100644 --- a/libc/string/arm/_memcpy.S +++ b/libc/string/arm/_memcpy.S @@ -111,11 +111,7 @@ _memcpy: bcc .Lmemcpy_backwards
IT(t, eq) /* Quick abort for src=dst */ -#if defined(__USE_BX__) - bxeq lr -#else - moveq pc, lr -#endif + BXC(eq, lr) stmdb sp!, {r0, lr} /* memcpy() returns dest addr */ subs r2, r2, #4 blt .Lmemcpy_fl4 /* less than 4 bytes */ @@ -455,11 +451,7 @@ _memcpy: /* less than 4 bytes to go */ adds r2, r2, #4 IT(t, eq) -#if defined(__USE_BX__) - bxeq lr -#else - moveq pc, lr /* done */ -#endif + BXC(eq, lr) /* done */ /* copy the crud byte at a time */ cmp r2, #2 ldrb r3, [r1, #-1]! @@ -477,11 +469,7 @@ _memcpy: ldrgtb r3, [r1, #-1]! strgtb r3, [r0, #-1]! #endif -#if defined(__USE_BX__) - bx lr -#else - mov pc, lr -#endif + BX(lr) /* erg - unaligned destination */ .Lmemcpy_bdestul: cmp r12, #2 diff --git a/libc/string/arm/memcmp.S b/libc/string/arm/memcmp.S index 9f78415..5b9473c 100644 --- a/libc/string/arm/memcmp.S +++ b/libc/string/arm/memcmp.S @@ -67,11 +67,7 @@ memcmp: subs r2, r2, #1 IT(tt, mi) movmi r0, #0 -#if defined(__USE_BX__) - bxmi lr -#else - movmi pc, lr -#endif + BXC(mi, lr) /* ip == last src address to compare */ add ip, r0, r2 1: @@ -82,11 +78,7 @@ memcmp: cmpcs r2, r3 beq 1b sub r0, r2, r3 -#if defined(__USE_BX__) - bx lr -#else - mov pc, lr -#endif + BX(lr) #endif
.size memcmp,.-memcmp diff --git a/libc/string/arm/memset.S b/libc/string/arm/memset.S index 8ddc47e..2be4850 100644 --- a/libc/string/arm/memset.S +++ b/libc/string/arm/memset.S @@ -17,7 +17,6 @@ http://www.gnu.org/licenses/. */
#include <features.h> -#include <sys/syscall.h> #include <bits/arm_asm.h> #include <bits/arm_bx.h>
@@ -109,11 +108,7 @@ memset: 2: movs a3, a3 @ anything left? IT(t, eq) -#if defined(__USE_BX__) - bxeq lr -#else - moveq pc, lr @ nope -#endif + BXC(eq, lr) @ nope #if defined (__thumb2__) 1: strb a2, [a4], #1 @@ -131,11 +126,7 @@ memset: strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 -#if defined(__USE_BX__) - bx lr -#else - mov pc, lr -#endif + BX(lr) #endif #endif
diff --git a/libc/string/arm/strcmp.S b/libc/string/arm/strcmp.S index 8b77ab0..81416a9 100644 --- a/libc/string/arm/strcmp.S +++ b/libc/string/arm/strcmp.S @@ -63,11 +63,7 @@ strcmp: cmpcs r2, r3 beq 1b sub r0, r2, r3 -#if defined(__USE_BX__) - bx lr -#else - mov pc, lr -#endif + BX(lr) #endif
.size strcmp,.-strcmp diff --git a/libc/string/arm/strlen.S b/libc/string/arm/strlen.S index 0e7737e..9995d76 100644 --- a/libc/string/arm/strlen.S +++ b/libc/string/arm/strlen.S @@ -18,7 +18,6 @@
#include <features.h> #include <endian.h> -#include <sys/syscall.h> #include <bits/arm_asm.h> #include <bits/arm_bx.h>
@@ -99,11 +98,7 @@ Llastword: @ drop through to here once we find a IT(t, ne) addne r0, r0, $1 @ must be zero) #endif -#if defined(__USE_BX__) - bx lr -#else - mov pc,lr -#endif + BX(lr) #endif
.size strlen,.-strlen diff --git a/libc/sysdeps/linux/arm/__longjmp.S b/libc/sysdeps/linux/arm/__longjmp.S index 853b906..58ae8ab 100644 --- a/libc/sysdeps/linux/arm/__longjmp.S +++ b/libc/sysdeps/linux/arm/__longjmp.S @@ -98,12 +98,7 @@ __longjmp: ldcl p1, cr14, [r12], #8 ldcl p1, cr15, [r12], #8 #endif - -#if defined(__USE_BX__) - bx lr -#else - mov pc, lr -#endif + BX(lr) #endif
.size __longjmp,.-__longjmp diff --git a/libc/sysdeps/linux/arm/bits/arm_asm.h b/libc/sysdeps/linux/arm/bits/arm_asm.h index 04664b3..898a78b 100644 --- a/libc/sysdeps/linux/arm/bits/arm_asm.h +++ b/libc/sysdeps/linux/arm/bits/arm_asm.h @@ -13,12 +13,12 @@ unified assembly syntax. */ #define IT(t, cond) /* Code to return from a thumb function stub. */ -#ifdef __ARM_ARCH_4T__ -#define POP_RET pop {r2, pc} -#else -#define POP_RET pop {r2, r3}; bx r3 -#endif -#endif +# if defined __ARM_ARCH_4T__ && defined __THUMB_INTERWORK__ +# define POP_RET pop {r2, r3}; bx r3 +# else +# define POP_RET pop {r2, pc} +# endif +#endif /* __thumb2__ */
#if defined(__ARM_ARCH_6M__) /* Force arm mode to flush out errors on M profile cores. */ diff --git a/libc/sysdeps/linux/arm/bits/arm_bx.h b/libc/sysdeps/linux/arm/bits/arm_bx.h index 321490e..2c29089 100644 --- a/libc/sysdeps/linux/arm/bits/arm_bx.h +++ b/libc/sysdeps/linux/arm/bits/arm_bx.h @@ -24,11 +24,17 @@ #endif /* features.h not yet included */
#if defined(__USE_BX__) -# if ( defined (__ARM_ARCH_2__) || defined (__ARM_ARCH_3__) \ - || defined (__ARM_ARCH_3M__) || defined (__ARM_ARCH_4__) \ - ) +# if (__ARM_ARCH <= 4 && !defined __ARM_ARCH_4T__) # error Use of BX was requested, but is not available on the target processor. # endif /* ARCH level */ #endif /* __USE_BX__ */
+#if defined(__USE_BX__) && (__ARM_ARCH > 4 || (__ARM_ARCH == 4 && defined __ARM_ARCH_4T__)) +# define BX(reg) bx reg +# define BXC(cond, reg) bx##cond reg +#else +# define BX(reg) mov pc, reg +# define BXC(cond, reg) mov##cond pc, reg +#endif + #endif /* _ARM_BX_H */ diff --git a/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h b/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h index b01d79c..e85aa52 100644 --- a/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h @@ -48,6 +48,32 @@ /* only weird assemblers generally need this */ #undef __UCLIBC_ASM_LINE_SEP__
+ +/* The __ARM_ARCH define is provided by gcc 4.8. Construct it otherwise. */ +#ifndef __ARM_ARCH +# ifdef __ARM_ARCH_2__ +# define __ARM_ARCH 2 +# elif defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__) +# define __ARM_ARCH 3 +# elif defined (__ARM_ARCH_4__) || defined (__ARM_ARCH_4T__) +# define __ARM_ARCH 4 +# elif defined (__ARM_ARCH_5__) || defined (__ARM_ARCH_5E__) \ + || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) \ + || defined(__ARM_ARCH_5TEJ__) +# define __ARM_ARCH 5 +# elif defined (__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ + || defined (__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \ + || defined (__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) +# define __ARM_ARCH 6 +# elif defined (__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ + || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ + || defined(__ARM_ARCH_7EM__) +# define __ARM_ARCH 7 +# else +# error unknown arm architecture +# endif +#endif + #ifdef __GNUC__ # define __need_uClibc_config_h # include <bits/uClibc_config.h> diff --git a/libc/sysdeps/linux/arm/clone.S b/libc/sysdeps/linux/arm/clone.S index 03cd10e..63eca31 100644 --- a/libc/sysdeps/linux/arm/clone.S +++ b/libc/sysdeps/linux/arm/clone.S @@ -115,11 +115,7 @@ __clone: ldmnefd sp!, {r4} blt __error IT(t, ne) -#if defined(__USE_BX__) - bxne lr -#else - movne pc, lr -#endif + BXC(ne, lr)
@ pick the function arg and call address off the stack and execute ldr r0, [sp, #4] diff --git a/libc/sysdeps/linux/arm/mmap64.S b/libc/sysdeps/linux/arm/mmap64.S index f4c491a..c9f2bd2 100644 --- a/libc/sysdeps/linux/arm/mmap64.S +++ b/libc/sysdeps/linux/arm/mmap64.S @@ -92,11 +92,7 @@ mmap64: cmn r0, $4096 ldmfd sp!, {r4, r5} IT(t, cc) -#if defined(__USE_BX__) - bxcc lr -#else - movcc pc, lr -#endif + BXC(cc, lr) b __syscall_error .Linval: mov r0, $-EINVAL diff --git a/libc/sysdeps/linux/arm/syscall-eabi.S b/libc/sysdeps/linux/arm/syscall-eabi.S index 005cfe3..534c6e9 100644 --- a/libc/sysdeps/linux/arm/syscall-eabi.S +++ b/libc/sysdeps/linux/arm/syscall-eabi.S @@ -15,7 +15,7 @@ License along with the GNU C Library; if not, see http://www.gnu.org/licenses/. */
-#include <sys/syscall.h> +#include <features.h> #include <bits/arm_asm.h> #include <bits/arm_bx.h>
@@ -62,11 +62,7 @@ syscall: ldmfd sp!, {r4, r5, r6, r7} cmn r0, #4096 IT(t, cc) -#if defined(__USE_BX__) - bxcc lr -#else - movcc pc, lr -#endif + BXC(cc, lr) b __syscall_error #endif
diff --git a/libc/sysdeps/linux/arm/sysdep.h b/libc/sysdeps/linux/arm/sysdep.h index 64f4040..019dc37 100644 --- a/libc/sysdeps/linux/arm/sysdep.h +++ b/libc/sysdeps/linux/arm/sysdep.h @@ -21,7 +21,6 @@
#include <common/sysdep.h> #include <bits/arm_bx.h> - #include <sys/syscall.h> /* For Linux we can use the system call table in the header file /usr/include/asm/unistd.h @@ -50,17 +49,10 @@ #ifdef __APCS_32__ #define LOADREGS(cond, base, reglist...)\ ldm##cond base,reglist -#ifdef __USE_BX__ -#define RETINSTR(cond, reg) \ - bx##cond reg -#define DO_RET(_reg) \ - bx _reg -#else -#define RETINSTR(cond, reg) \ - mov##cond pc, reg +#define RETINSTR(cond, reg) \ + BXC(cond, reg) #define DO_RET(_reg) \ - mov pc, _reg -#endif + BX(_reg) #else /* APCS-26 */ #define LOADREGS(cond, base, reglist...) \ ldm##cond base,reglist^ diff --git a/libc/sysdeps/linux/arm/vfork.S b/libc/sysdeps/linux/arm/vfork.S index 99fb6cb..221a90c 100644 --- a/libc/sysdeps/linux/arm/vfork.S +++ b/libc/sysdeps/linux/arm/vfork.S @@ -74,11 +74,7 @@ __vfork: RESTORE_PID cmn r0, #4096 IT(t, cc) -#if defined(__USE_BX__) - bxcc lr -#else - movcc pc, lr -#endif + BXC(cc, lr)
/* Check if vfork even exists. */ ldr r1, =-ENOSYS @@ -92,11 +88,7 @@ __vfork:
/* Syscall worked. Return to child/parent */ IT(t, cc) -#if defined(__USE_BX__) - bxcc lr -#else - movcc pc, lr -#endif + BXC(cc, lr)
__error: b __syscall_error
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