2016-01-04 17:05:18 +01:00
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/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
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1996-11-07 02:35:04 +01:00
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This file is part of the GNU C Library.
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1995-02-18 02:27:10 +01:00
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1996-11-07 02:35:04 +01:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 06:58:11 +02:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1995-02-18 02:27:10 +01:00
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1996-11-07 02:35:04 +01:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 06:58:11 +02:00
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Lesser General Public License for more details.
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1995-02-18 02:27:10 +01:00
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2001-07-06 06:58:11 +02:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-10 00:18:22 +01:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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1995-02-18 02:27:10 +01:00
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Add INLINE_SYSCALL_ERROR_RETURN_VALUE
For ia32 PIC, the first thing of many syscalls does is to call
__x86.get_pc_thunk.reg to load PC into reg in case there is an error,
which is required for setting errno. In most cases, there are no
errors. But we still call __x86.get_pc_thunk.reg. This patch adds
INLINE_SYSCALL_ERROR_RETURN_VALUE so that i386 can optimize setting
errno by branching to the internal __syscall_error without PLT.
With i386 INLINE_SYSCALL_ERROR_RETURN_VALUE and i386 syscall inlining
optimization for GCC 5, for sysdeps/unix/sysv/linux/fchmodat.c with
-O2 -march=i686 -mtune=generic, GCC 5.2 now generates:
<fchmodat>:
0: push %ebx
1: mov 0x14(%esp),%eax
5: mov 0x8(%esp),%ebx
9: mov 0xc(%esp),%ecx
d: mov 0x10(%esp),%edx
11: test $0xfffffeff,%eax
16: jne 38 <fchmodat+0x38>
18: test $0x1,%ah
1b: jne 48 <fchmodat+0x48>
1d: mov $0x132,%eax
22: call *%gs:0x10
29: cmp $0xfffff000,%eax
2e: ja 58 <fchmodat+0x58>
30: pop %ebx
31: ret
32: lea 0x0(%esi),%esi
38: pop %ebx
39: mov $0xffffffea,%eax
3e: jmp 3f <fchmodat+0x3f> 3f: R_386_PC32 __syscall_error
43: nop
44: lea 0x0(%esi,%eiz,1),%esi
48: pop %ebx
49: mov $0xffffffa1,%eax
4e: jmp 4f <fchmodat+0x4f> 4f: R_386_PC32 __syscall_error
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: pop %ebx
59: jmp 5a <fchmodat+0x5a> 5a: R_386_PC32 __syscall_error
instead of
<fchmodat>:
0: sub $0x8,%esp
3: mov 0x18(%esp),%eax
7: mov %ebx,(%esp)
a: call b <fchmodat+0xb> b: R_386_PC32 __x86.get_pc_thunk.bx
f: add $0x2,%ebx 11: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
15: mov %edi,0x4(%esp)
19: test $0xfffffeff,%eax
1e: jne 70 <fchmodat+0x70>
20: test $0x1,%ah
23: jne 88 <fchmodat+0x88>
25: mov 0x14(%esp),%edx
29: mov 0x10(%esp),%ecx
2d: mov 0xc(%esp),%edi
31: xchg %ebx,%edi
33: mov $0x132,%eax
38: call *%gs:0x10
3f: xchg %edi,%ebx
41: cmp $0xfffff000,%eax
46: ja 58 <fchmodat+0x58>
48: mov (%esp),%ebx
4b: mov 0x4(%esp),%edi
4f: add $0x8,%esp
52: ret
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: mov 0x0(%ebx),%edx 5a: R_386_TLS_GOTIE __libc_errno
5e: neg %eax
60: mov %eax,%gs:(%edx)
63: mov $0xffffffff,%eax
68: jmp 48 <fchmodat+0x48>
6a: lea 0x0(%esi),%esi
70: mov 0x0(%ebx),%eax 72: R_386_TLS_GOTIE __libc_errno
76: movl $0x16,%gs:(%eax)
7d: mov $0xffffffff,%eax
82: jmp 48 <fchmodat+0x48>
84: lea 0x0(%esi,%eiz,1),%esi
88: mov 0x0(%ebx),%eax 8a: R_386_TLS_GOTIE __libc_errno
8e: movl $0x5f,%gs:(%eax)
95: mov $0xffffffff,%eax
9a: jmp 48 <fchmodat+0x48>
* sysdeps/unix/sysv/linux/sysdep.h: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/generic/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == csu]
(sysdep-dl-routines): Add sysdep.
[$(subdir) == nptl] (libpthread-routines): Likewise.
[$(subdir) == rt] (librt-routines): Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S (__clone): Don't check
PIC when branching to SYSCALL_ERROR_LABEL.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Removed.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
(SYSCALL_ERROR_LABEL): Changed to __syscall_error.
(SYSCALL_ERROR_ERRNO): Removed.
(SYSCALL_ERROR_HANDLER): Changed to empty.
(SYSCALL_ERROR_HANDLER_TLS_STORE): Likewise.
(__syscall_error): New prototype.
[IS_IN (libc)] (INLINE_SYSCALL): New macro.
(INLINE_SYSCALL_ERROR_RETURN_VALUE): Likewise.
2015-10-13 20:58:53 +02:00
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#include <errno.h>
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update from main archive 960919
Thu Sep 19 21:50:55 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/posix/gettimeofday.c (__gettimeofday): Use localtime_r
instead of localtime.
Reported by Matthias Urlichs.
* shlib-versions: Remove version number for libcrypt.
* features.h: Define __USE_REENTRANT if _REENTRANT or _THREAD_SAFE.
* libc-symbols.h: Define _REENTRANT while compiling libc.
* sysdeps/unix/sysv/linux/i386/sysdep.S (__errno_location):
Define even if !_LIBC_REENTRANT.
* sysdeps/unix/sysv/linux/i386/sysdep.S (__errno_location):
Likewise.
* sysdeps/posix/cuserid.h: Remove prototype for geteuid().
De-ANSI-fy.
* MakeTAGS ($P/libc.pot): Generate correctly formed header.
* po/header.pot: Correct title line.
* po/nl.po: Update.
Thu Sep 19 18:59:55 1996 Ulrich Drepper <drepper@cygnus.com>
* Makeconfig (soversions.mk): Prefer shared lib version numbers
is add ons over version in libc itself.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Include <sysdep.h>.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Prevent multiple
inclusion.
* libio/iofgets.c: Use __flockfile and __funlockfile instead of
_IO_flockfile and _IO_funlockfile resp.
* locale/categories.def: Partly support for correct `era' handling
in LC_TIME category.
* locale/langinfo.h: Likewise.
* locale/programs/ld-time.c: Likewise.
* locale/localeinfo.h: Change comment a bit.
* malloc/memalign.c: Don't use goto, not necessary anymore.
1996-09-18 Paul Eggert <eggert@twinsun.com>
* time/mktime.c (ydhms_tm_diff): Work correctly even if year
is negative, or if time_t is unsigned.
* time/strftime.c (tm_diff): Work correctly even if tm_year
is near INT_MIN.
Tue Sep 17 16:14:34 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__inline_mathop): Changed to generate
all three versions of the math function.
(__inline_mathopf, __inline_mathopl): Removed.
(__inline_functions): New temporary definition containing all
non-trivial inline functions.
Wed Sep 18 00:25:41 1996 Ulrich Drepper <drepper@cygnus.com>
* time/strftime.c (strftime): The T_FMT_AMPM string may be empty.
Tue Sep 17 20:27:18 1996 Ulrich Drepper <drepper@cygnus.com>
* math/Makefile (extra-libs-others): Use $(extra-libs) instead
of $(extra-libc).
Tue Sep 17 17:09:44 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/stub/fpu_control.h: Correct end of file comment.
Tue Sep 17 05:39:18 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/bug3.c, stdio-common/bug4.c, stdio-common/bug5.c,
stdio-common/test-popen.c: Remove temporary files after test.
* stdio-common/bug5.c: Use `system' instead of `execlp'.
Patches by Andreas Jaeger.
* stdio-common/bug5.c: Create string for `system' argument to
make sure the input and output file names are really correct.
Sun Sep 15 12:46:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: If $os contains a hyphen add the part before the
hyphen to $ostry.
Sun Sep 15 18:14:02 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__ieee754_pow, __ieee754_powf,
__ieee754_powl): Rename local variable i to __i.
(__ieee754_atan2, __ieee754_atan2f, __ieee754_atan2l): New inline
functions.
* sysdeps/m68k/fpu/e_atan2.c, sysdeps/m68k/fpu/e_atan2f.c,
sysdeps/m68k/fpu/e_atan2l.c: New files.
1996-09-15 Paul Eggert <eggert@twinsun.com>
* manual/time.texi: Change `range X to Y' to `range X through
Y', to avoid ambiguity in English.
(strftime): Numbers that do not have a range indicated are not padded.
Describe E and O modifiers.
%g, %G, %u: New formats.
%C, %y, %Y: Describe behavior on negative years.
%e: Fix typo (was labeled %d).
%l, %V: Fix typo in range.
%M, %S, %U, %w, %W: Give ranges.
%p: Clarify how noon and midnight are handled for AM and PM.
%s: Clarify leap second handling.
%r: Now locale-defined.
%C, %D, %e, %h, %n, %r, %t, %T: Say that they are POSIX.2 extensions.
%z: Say that it is a GNU extension.
%Z: Wording fix.
* time/strftime.c: (strftime):
%V: Fix mishandling of week numbers near year boundaries.
%g, %G: New formats (suggested by Arthur David Olson).
%U, %W: Use inline expression instead of `week' function.
%C, %y: Handle negative years portably.
%C, %Y: Use width 1, since values can be arbitrarily wide.
%r: Use T_FMT_AMPM format if _NL_CURRENT is defined.
%u: New Posix.2 format.
%w: Width is 1, not 2.
(iso_week_days): New function, for %V, %G, %g.
(week): Remove; it didn't handle %V correctly.
(__isleap): New macro.
(mbsinit): Use arg, to pacify GCC -Wall.
1996-09-13 Paul Eggert <eggert@twinsun.com>
* time/strftime.c (strftime):
If using the GNU C library, do not bother to check for
multibyte encodings, since they're safe in formats. Otherwise:
- Check for multibyte encodings when encountering any character that
is not in the basic execution character set of the C Standard.
- Use mbrlen (if available) instead of mblen, to avoid modifying
mblen's internal state.
- Do not assume that '%' cannot appear as the first character of a
multibyte character sequence, since this is possible when not in the
initial shift state.
(HAVE_MBRLEN, MULTIBYTE_IS_FORMAT_SAFE): Define if _LIBC is defined.
(DO_MULTIBYTE): New macro.
(<ctype.h>): Do not include.
(<wchar.h>): Include if HAVE_MBRLEN.
(mbstate_t, mbrlen, mbsinit): Define if ! HAVE_MBRLEN.
(mbstate_zero): New constant.
1996-09-12 Paul Eggert <eggert@twinsun.com>
* time/strftime.c (strftime):
Use an empty zone if it can't be determined; POSIX.2 requires this.
Use plain `int' for pad and modifier (which now contain char value).
Use plain `int' for number_value, to print negative values correctly.
Use plain `int' for digits; there was no need to make it unsigned.
Initialize subfmt consistently.
Remove incorrect code for %EC and %Ey; they aren't implemented yet.
For %O, if there is no alternate digit, output Ascii instead of "".
Output the `%' of an unknown format; this is most likely the right
thing to do if a multibyte string has been misparsed.
Thu Sep 12 23:23:13 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdio-common/scanf7.c (main): Remove extra conversion from
printf format string.
Thu Sep 12 23:01:16 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdlib/test-canon.c (tests): Rename structure member from errno
to error, all uses changed.
Thu Sep 12 20:08:06 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__ldexp, __ldexpf, __ldexpl):
Removed.
* sysdeps/m68k/fpu/s_ldexp.c, sysdeps/m68k/fpu/s_ldexpf.c,
sysdeps/m68k/fpu/s_ldexpl.c: Removed, use generic implementation
instead.
* sysdeps/m68k/fpu/s_scalbn.c, sysdeps/m68k/fpu/s_scalbnf.c,
sysdeps/m68k/fpu/s_scalbnl.c: Replaced with old contents of
s_ldexp.c, s_ldexpf.c and s_ldexpl.c, resp., suitably adpted.
* sysdeps/m68k/fpu/__math.h (__frexp, __frexpf, __frexpl):
Return value must be in [0.5, 1), not [1, 2). Reported by Chris
Lawrence.
(__ilogb, __ilogbf, __ilogbl): Check for argument being zero.
(__scalbn, __scalbnf, __scalbnl): Use second argument directly.
Thu Sep 12 19:59:24 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/e_acoshl.c: Fix typos.
* sysdeps/libm-ieee754/s_cbrtl.c: Remove unused variable.
Thu Sep 12 19:59:24 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/e_acoshl.c: Fix typos.
* sysdeps/libm-ieee754/s_cbrtl.c: Remove unused variable.
Thu Sep 12 19:56:07 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* inet/herrno.c (__h_errno_location): Fix return type.
Tue Sep 17 10:51:58 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* malloc/memalign.c (memalign): Only acquire __libc_malloc_lock
for actual modifications to global state.
Fri Sep 13 01:21:36 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/Makefile (includes): Add -I$(common-objpfx)mach/.
* sysdeps/mach/hurd/Makefile (includes): Add
-I$(common-objpfx)hurd/. Reported by Marcus Daniels.
* sysdeps/generic/schedbits.h (struct sched_param): Renamed from
struct sched_params.
* sysdeps/stub/sched_setp.c (__sched_setparam): struct
sched_params -> struct sched_param.
* sysdeps/stub/sched_getp.c (__sched_getparam): Likewise.
* sysdeps/stub/sched_sets.c (__sched_setscheduler): Likewise.
Thu Sep 12 23:58:25 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_cleanup_region_start): Fix
syntax error.
* stdio-common/Makefile: Put lockfile in routines
unconditionally.
Define _MT_SAFE_IO if using for libio and compiling reentrant
libc.
* stdio-common/vfprintf.c (__flockfile, __funlockfile): Declare
this always, not just if _LIBC_REENTRANT.
(__funlockfile): Don't use weak_extern for this one;
__libc_cleanup_region_end might be defined and the use of
__funlockfile can't be protected the way the use of __flockfile
can be.
* sched.h: New file. Helper to access posix/sched.h.
Thu Sep 12 12:33:52 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/hurd/dl-cache.c: Delete second copy of file
accidentally added on.
* sysdeps/stub/intr-msg.h: New file.
* stdio-common/vfprintf.c: Include <libc-lock.h>.
* stdio-common/vfscanf.c: Include <libc-lock.h>.
* sysdeps/mach/libc-lock.h (__libc_cleanup_region_start): New
macro.
(__libc_cleanup_region_end): New macro.
1996-09-20 03:58:09 +02:00
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#include <sysdep.h>
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1995-10-25 03:19:39 +01:00
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Add INLINE_SYSCALL_ERROR_RETURN_VALUE
For ia32 PIC, the first thing of many syscalls does is to call
__x86.get_pc_thunk.reg to load PC into reg in case there is an error,
which is required for setting errno. In most cases, there are no
errors. But we still call __x86.get_pc_thunk.reg. This patch adds
INLINE_SYSCALL_ERROR_RETURN_VALUE so that i386 can optimize setting
errno by branching to the internal __syscall_error without PLT.
With i386 INLINE_SYSCALL_ERROR_RETURN_VALUE and i386 syscall inlining
optimization for GCC 5, for sysdeps/unix/sysv/linux/fchmodat.c with
-O2 -march=i686 -mtune=generic, GCC 5.2 now generates:
<fchmodat>:
0: push %ebx
1: mov 0x14(%esp),%eax
5: mov 0x8(%esp),%ebx
9: mov 0xc(%esp),%ecx
d: mov 0x10(%esp),%edx
11: test $0xfffffeff,%eax
16: jne 38 <fchmodat+0x38>
18: test $0x1,%ah
1b: jne 48 <fchmodat+0x48>
1d: mov $0x132,%eax
22: call *%gs:0x10
29: cmp $0xfffff000,%eax
2e: ja 58 <fchmodat+0x58>
30: pop %ebx
31: ret
32: lea 0x0(%esi),%esi
38: pop %ebx
39: mov $0xffffffea,%eax
3e: jmp 3f <fchmodat+0x3f> 3f: R_386_PC32 __syscall_error
43: nop
44: lea 0x0(%esi,%eiz,1),%esi
48: pop %ebx
49: mov $0xffffffa1,%eax
4e: jmp 4f <fchmodat+0x4f> 4f: R_386_PC32 __syscall_error
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: pop %ebx
59: jmp 5a <fchmodat+0x5a> 5a: R_386_PC32 __syscall_error
instead of
<fchmodat>:
0: sub $0x8,%esp
3: mov 0x18(%esp),%eax
7: mov %ebx,(%esp)
a: call b <fchmodat+0xb> b: R_386_PC32 __x86.get_pc_thunk.bx
f: add $0x2,%ebx 11: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
15: mov %edi,0x4(%esp)
19: test $0xfffffeff,%eax
1e: jne 70 <fchmodat+0x70>
20: test $0x1,%ah
23: jne 88 <fchmodat+0x88>
25: mov 0x14(%esp),%edx
29: mov 0x10(%esp),%ecx
2d: mov 0xc(%esp),%edi
31: xchg %ebx,%edi
33: mov $0x132,%eax
38: call *%gs:0x10
3f: xchg %edi,%ebx
41: cmp $0xfffff000,%eax
46: ja 58 <fchmodat+0x58>
48: mov (%esp),%ebx
4b: mov 0x4(%esp),%edi
4f: add $0x8,%esp
52: ret
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: mov 0x0(%ebx),%edx 5a: R_386_TLS_GOTIE __libc_errno
5e: neg %eax
60: mov %eax,%gs:(%edx)
63: mov $0xffffffff,%eax
68: jmp 48 <fchmodat+0x48>
6a: lea 0x0(%esi),%esi
70: mov 0x0(%ebx),%eax 72: R_386_TLS_GOTIE __libc_errno
76: movl $0x16,%gs:(%eax)
7d: mov $0xffffffff,%eax
82: jmp 48 <fchmodat+0x48>
84: lea 0x0(%esi,%eiz,1),%esi
88: mov 0x0(%ebx),%eax 8a: R_386_TLS_GOTIE __libc_errno
8e: movl $0x5f,%gs:(%eax)
95: mov $0xffffffff,%eax
9a: jmp 48 <fchmodat+0x48>
* sysdeps/unix/sysv/linux/sysdep.h: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/generic/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == csu]
(sysdep-dl-routines): Add sysdep.
[$(subdir) == nptl] (libpthread-routines): Likewise.
[$(subdir) == rt] (librt-routines): Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S (__clone): Don't check
PIC when branching to SYSCALL_ERROR_LABEL.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Removed.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
(SYSCALL_ERROR_LABEL): Changed to __syscall_error.
(SYSCALL_ERROR_ERRNO): Removed.
(SYSCALL_ERROR_HANDLER): Changed to empty.
(SYSCALL_ERROR_HANDLER_TLS_STORE): Likewise.
(__syscall_error): New prototype.
[IS_IN (libc)] (INLINE_SYSCALL): New macro.
(INLINE_SYSCALL_ERROR_RETURN_VALUE): Likewise.
2015-10-13 20:58:53 +02:00
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/* This routine is jumped to by all the syscall handlers, to stash
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an error number into errno. ERROR is the negative error number
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returned from the x86 kernel. */
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int
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__attribute__ ((__regparm__ (1)))
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__syscall_error (int error)
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{
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__set_errno (-error);
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return -1;
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}
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