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author | Ulrich Drepper <drepper@redhat.com> | 1998-03-18 14:42:25 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1998-03-18 14:42:25 +0000 |
commit | 3116126871400c8737a9df0145f66534f097c06c (patch) | |
tree | 9a41a87b932c3963a7d482ceabc8de92c69bef5b /sysdeps/arm/elf/setjmp.S | |
parent | 52cda95831cdc685d74b99334a06fb1f69996dc4 (diff) | |
download | glibc-3116126871400c8737a9df0145f66534f097c06c.zip glibc-3116126871400c8737a9df0145f66534f097c06c.tar.gz glibc-3116126871400c8737a9df0145f66534f097c06c.tar.bz2 |
Update.
1998-03-18 14:25 Ulrich Drepper <drepper@cygnus.com>
* string/bits/string2.h: Add optimization for strdup.
Always define __strsep and __strtok_r and make real names available
when feature select macros are defined.
1998-03-18 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/install.texi (Installation): Use i486-linux as example
instead of the unsupported sunos4.
(Reporting Bugs): Mention glibcbug script.
(Tools for Installation): gcc 2.8.1/egcs 1.0.2 is required.
1998-03-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* posix/wordexp-tst.sh: Make portable. Add more tests.
* posix/Makefile (do-globtest do-wordexp-test): New targets.
1998-03-18 13:38 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/libc-start.c: Moved to ...
* sysdeps/generic/libc-start.c: ...here, replacing former content.
* sysdeps/unix/sysv/linux/Dist: Add netash/ash.h and
netpacket/packet.h.
* sysdeps/unix/sysv/linux/bits/socket.h: Pretty print.
1998-03-17 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/bits/resource.h: Remove trailing comma
in enumerator for strict standard compliance.
* sysdeps/generic/bits/resource.h: Likewise.
1998-03-18 10:04 Philip Blundell <pb@nexus.co.uk>
* sysdeps/arm/sysdep.h (__ARM_USES_FP): Deleted.
(PLTJMP): New macro.
* sysdeps/arm/fpu/__longjmp.S: New file, implementation of
longjmp() when floating point enabled.
* sysdeps/arm/fpu/setjmp.S: Likewise for setjmp().
* sysdeps/arm/__longjmp.S: Remove floating point code.
* sysdeps/arm/setjmp.S: Likewise.
* sysdeps/arm/bsd-setjmp.S: Call __sigsetjmp by correct name.
* sysdeps/arm/bsd-_setjmp.S: Likewise.
* sysdeps/arm/memset.S: New file; optimised ARM implementation of
memset().
* sysdeps/generic/setsockopt.c (setsockopt): Keep in step with
prototype.
1998-03-17 16:16 Philip Blundell <pb@nexus.co.uk>
Based on patches from Pat Beirne and Scott Bambrough:
* sysdeps/arm/__longjmp.S: Use ip, not r2, as temporary.
* sysdeps/arm/bits/fenv.h: New file.
* sysdeps/arm/dl-machine.h: New file. Add ELF support.
* sysdeps/arm/elf/setjmp.S: Likewise.
* sysdeps/arm/elf/start.S: Likewise.
* sysdeps/arm/init-first.c: Likewise.
* sysdeps/arm/setjmp.S: Call __sigjmp_save through PLT
* sysdeps/arm/sysdep.h: Change format of .type directive. Correct
comment about floating point to reflect current reality.
* sysdeps/unix/arm/brk.S: Support PIC.
* sysdeps/unix/arm/sysdep.S (syscall_error): Support PIC and
re-entrant code.
* sysdeps/unix/sysv/linux/arm/socket.S: Check correctly for error
return; call syscall_error through PLT.
* sysdeps/unix/sysv/linux/arm/sysdep.h (ENTRY): Correct error jump.
1998-03-04 12:01 Philip Blundell <pb@nexus.co.uk>
* sysdeps/unix/sysv/linux/netpacket/packet.h: New file.
* sysdeps/unix/sysv/linux/netash/ash.h: Likewise.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Install them.
Diffstat (limited to 'sysdeps/arm/elf/setjmp.S')
-rw-r--r-- | sysdeps/arm/elf/setjmp.S | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/arm/elf/setjmp.S b/sysdeps/arm/elf/setjmp.S new file mode 100644 index 0000000..51572ca --- /dev/null +++ b/sysdeps/arm/elf/setjmp.S @@ -0,0 +1,76 @@ +/* setjmp for arm, ELF version. + Copyright (C) 1995, 1996, 1997, 1998 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + /* We include the BSD entry points here as well but we make + them weak. */ +ENTRY (setjmp) + .weak C_SYMBOL_NAME (setjmp) + @ call comes here with + @ lr = return pc + @ r0 = &jump_buf + + @ add a second argument into the fray + mov r1, #1 + @ call the common code + b __sigsetjmp(PLT) +END (setjmp) + + /* Binary compatibility entry point. */ +ENTRY (_setjmp) + .weak C_SYMBOL_NAME (_setjmp) +ENTRY (__setjmp) + @ call comes here with + @ lr = return pc + @ r0 = &jump_buf + + @ add a second argument into the fray + mov r1, #1 + @ fall through to the common code.... + +ENTRY (__sigsetjmp) + @ save the registers into the jmp_buf.... + stmia r0, {r1-r6, sl, fp, sp, lr} + + /* Make a tail call to __sigjmp_save; it takes the same args. */ +#ifdef PIC + /* We cannot use the PLT, because it requires that sl==r10 be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT, using for the temporary register + ip, which is call-clobbered. */ + ldr ip, 1f + add ip, ip, pc +2: @ get the address of __sigjmp_save + ldr r1, 3f + ldr ip, [ip, r1] + @ restore r1 + ldr r1, [r0] + @ jump to *__sigjmp_save + mov pc, ip +1: .word _GLOBAL_OFFSET_TABLE_ - 2b - 4 +3: .word __sigjmp_save(GOT) + +#else + b __sigjmp_save +#endif +END (__sigsetjmp) |