2003-02-04 07:51:36 +00:00
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/* Copy memory block and return pointer to beginning of destination block
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For Intel 80x86, x>=6.
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This file is part of the GNU C Library.
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2018-01-01 00:32:25 +00:00
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Copyright (C) 2003-2018 Free Software Foundation, Inc.
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2003-02-04 07:51:36 +00:00
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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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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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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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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2003-02-04 07:51:36 +00:00
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#include <sysdep.h>
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#include "asm-syntax.h"
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2013-02-21 22:21:52 +00:00
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#define PARMS 4+4 /* one spilled register */
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2003-02-04 07:51:36 +00:00
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#define RTN PARMS
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.text
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2010-01-12 19:22:03 +00:00
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#ifdef USE_AS_BCOPY
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2013-02-21 22:21:52 +00:00
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# define SRC RTN
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# define DEST SRC+4
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# define LEN DEST+4
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2010-01-12 19:22:03 +00:00
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#else
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2013-02-21 22:21:52 +00:00
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# define DEST RTN
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# define SRC DEST+4
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# define LEN SRC+4
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2010-01-12 19:22:03 +00:00
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2014-11-24 09:33:45 +00:00
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# if defined PIC && IS_IN (libc)
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2010-01-12 19:22:03 +00:00
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ENTRY_CHK (__memmove_chk)
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2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-18 04:17:19 +00:00
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movl 12(%esp), %eax
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cmpl %eax, 16(%esp)
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jb HIDDEN_JUMPTARGET (__chk_fail)
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2010-01-12 19:22:03 +00:00
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END_CHK (__memmove_chk)
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# endif
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2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-18 04:17:19 +00:00
|
|
|
#endif
|
2010-01-12 19:22:03 +00:00
|
|
|
|
2013-02-21 22:21:52 +00:00
|
|
|
ENTRY (memmove)
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
pushl %edi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_adjust_cfa_offset (4)
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
movl LEN(%esp), %ecx
|
|
|
|
movl DEST(%esp), %edi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_rel_offset (edi, 0)
|
2003-02-04 07:51:36 +00:00
|
|
|
movl %esi, %edx
|
|
|
|
movl SRC(%esp), %esi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_register (esi, edx)
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
movl %edi, %eax
|
|
|
|
subl %esi, %eax
|
2014-01-08 20:49:54 +00:00
|
|
|
cmpl %eax, %ecx
|
|
|
|
ja 3f
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
cld
|
|
|
|
shrl $1, %ecx
|
|
|
|
jnc 1f
|
|
|
|
movsb
|
|
|
|
1: shrl $1, %ecx
|
|
|
|
jnc 2f
|
|
|
|
movsw
|
|
|
|
2: rep
|
|
|
|
movsl
|
|
|
|
movl %edx, %esi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_restore (esi)
|
2010-01-12 19:22:03 +00:00
|
|
|
#ifndef USE_AS_BCOPY
|
2003-02-04 07:51:36 +00:00
|
|
|
movl DEST(%esp), %eax
|
2010-01-12 19:22:03 +00:00
|
|
|
#endif
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
popl %edi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_adjust_cfa_offset (-4)
|
|
|
|
cfi_restore (edi)
|
2003-02-04 07:51:36 +00:00
|
|
|
|
2013-02-21 22:21:52 +00:00
|
|
|
ret
|
2003-02-04 07:51:36 +00:00
|
|
|
|
2005-05-04 17:58:13 +00:00
|
|
|
cfi_adjust_cfa_offset (4)
|
|
|
|
cfi_rel_offset (edi, 0)
|
|
|
|
cfi_register (esi, edx)
|
|
|
|
|
2003-02-04 07:51:36 +00:00
|
|
|
/* Backward copying. */
|
|
|
|
3: std
|
|
|
|
leal -1(%edi, %ecx), %edi
|
|
|
|
leal -1(%esi, %ecx), %esi
|
|
|
|
shrl $1, %ecx
|
|
|
|
jnc 1f
|
|
|
|
movsb
|
|
|
|
1: subl $1, %edi
|
|
|
|
subl $1, %esi
|
|
|
|
shrl $1, %ecx
|
|
|
|
jnc 2f
|
|
|
|
movsw
|
|
|
|
2: subl $2, %edi
|
|
|
|
subl $2, %esi
|
|
|
|
rep
|
|
|
|
movsl
|
|
|
|
movl %edx, %esi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_restore (esi)
|
2010-01-12 19:22:03 +00:00
|
|
|
#ifndef USE_AS_BCOPY
|
2003-02-04 07:51:36 +00:00
|
|
|
movl DEST(%esp), %eax
|
2010-01-12 19:22:03 +00:00
|
|
|
#endif
|
2003-02-04 07:51:36 +00:00
|
|
|
|
|
|
|
cld
|
|
|
|
popl %edi
|
2005-05-04 06:22:30 +00:00
|
|
|
cfi_adjust_cfa_offset (-4)
|
|
|
|
cfi_restore (edi)
|
2003-02-04 07:51:36 +00:00
|
|
|
|
2013-02-21 22:21:52 +00:00
|
|
|
ret
|
|
|
|
END (memmove)
|
2010-01-12 19:22:03 +00:00
|
|
|
#ifndef USE_AS_BCOPY
|
Update.
* sysdeps/i386/fpu/ftestexcept.c: Also check SSE status word.
* include/signal.h: Use libc_hidden_proto for sigaddset and sigdelset.
* signal/sigaddset.c: Add libc_hidden_def.
* signal/sigdelset.c: Likewise.
2003-04-29 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/i486/string-inlines.c (__memcpy_g, __strchr_g): Move
to the end of the file.
* configure.in: Change __oline__ to $LINENO.
(HAVE_BUILTIN_REDIRECTION): New check.
* config.h.in (HAVE_BUILTIN_REDIRECTION): Add.
* include/libc-symbols.h (libc_hidden_builtin_proto,
libc_hidden_builtin_def, libc_hidden_builtin_weak,
libc_hidden_builtin_ver): Define.
* include/string.h (memchr, memcpy, memmove, memset, strcat, strchr,
strcmp, strcpy, strcspn, strlen, strncmp, strncpy, strpbrk, strrchr,
strspn, strstr): Add libc_hidden_builtin_proto.
* intl/plural.y: Include string.h.
* sysdeps/alpha/alphaev6/memchr.S (memchr): Add
libc_hidden_builtin_def.
* sysdeps/alpha/alphaev6/memcpy.S (memcpy): Likewise.
* sysdeps/alpha/alphaev6/memset.S (memset): Likewise.
* sysdeps/alpha/alphaev67/strcat.S (strcat): Likewise.
* sysdeps/alpha/alphaev67/strchr.S (strchr): Likewise.
* sysdeps/alpha/alphaev67/strlen.S (strlen): Likewise.
* sysdeps/alpha/alphaev67/strrchr.S (strrchr): Likewise.
* sysdeps/alpha/memchr.S (memchr): Likewise.
* sysdeps/alpha/memset.S (memset): Likewise.
* sysdeps/alpha/strcat.S (strcat): Likewise.
* sysdeps/alpha/strchr.S (strchr): Likewise.
* sysdeps/alpha/strcmp.S (strcmp): Likewise.
* sysdeps/alpha/strcpy.S (strcpy): Likewise.
* sysdeps/alpha/strlen.S (strlen): Likewise.
* sysdeps/alpha/strncmp.S (strncmp): Likewise.
* sysdeps/alpha/strncpy.S (strncpy): Likewise.
* sysdeps/alpha/strrchr.S (strrchr): Likewise.
* sysdeps/arm/memset.S (memset): Likewise.
* sysdeps/arm/strlen.S (strlen): Likewise.
* sysdeps/generic/memchr.c (memchr): Likewise.
* sysdeps/generic/memcpy.c (memcpy): Likewise.
* sysdeps/generic/memmove.c (memmove): Likewise.
* sysdeps/generic/memset.c (memset): Likewise.
* sysdeps/generic/strcat.c (strcat): Likewise.
* sysdeps/generic/strchr.c (strchr): Likewise.
* sysdeps/generic/strcmp.c (strcmp): Likewise.
* sysdeps/generic/strcpy.c (strcpy): Likewise.
* sysdeps/generic/strcspn.c (strcspn): Likewise.
* sysdeps/generic/strlen.c (strlen): Likewise.
* sysdeps/generic/strncmp.c (strncmp): Likewise.
* sysdeps/generic/strncpy.c (strncpy): Likewise.
* sysdeps/generic/strpbrk.c (strpbrk): Likewise.
* sysdeps/generic/strrchr.c (strrchr): Likewise.
* sysdeps/generic/strspn.c (strspn): Likewise.
* sysdeps/generic/strstr.c (strstr): Likewise.
* sysdeps/i386/i486/strcat.S (strcat): Likewise.
* sysdeps/i386/i486/strlen.S (strlen): Likewise.
* sysdeps/i386/i586/memcpy.S (memcpy): Likewise.
* sysdeps/i386/i586/memset.S (memset): Likewise.
* sysdeps/i386/i586/strchr.S (strchr): Likewise.
* sysdeps/i386/i586/strcpy.S (strcpy): Likewise.
* sysdeps/i386/i586/strlen.S (strlen): Likewise.
* sysdeps/i386/i686/memcpy.S (memcpy): Likewise.
* sysdeps/i386/i686/memmove.S (memmove): Likewise.
* sysdeps/i386/i686/memset.S (memset): Likewise.
* sysdeps/i386/i686/strcmp.S (strcmp): Likewise.
* sysdeps/i386/memchr.S (memchr): Likewise.
* sysdeps/i386/memset.c (memset): Likewise.
* sysdeps/i386/strchr.S (strchr): Likewise.
* sysdeps/i386/strcspn.S (strcspn): Likewise.
* sysdeps/i386/strlen.c (strlen): Likewise.
* sysdeps/i386/strpbrk.S (strpbrk): Likewise.
* sysdeps/i386/strrchr.S (strrchr): Likewise.
* sysdeps/i386/strspn.S (strspn): Likewise.
* sysdeps/ia64/memchr.S (memchr): Likewise.
* sysdeps/ia64/memcpy.S (memcpy): Likewise.
* sysdeps/ia64/memmove.S (memmove): Likewise.
* sysdeps/ia64/memset.S (memset): Likewise.
* sysdeps/ia64/strcat.S (strcat): Likewise.
* sysdeps/ia64/strchr.S (strchr): Likewise.
* sysdeps/ia64/strcmp.S (strcmp): Likewise.
* sysdeps/ia64/strcpy.S (strcpy): Likewise.
* sysdeps/ia64/strlen.S (strlen): Likewise.
* sysdeps/ia64/strncmp.S (strncmp): Likewise.
* sysdeps/ia64/strncpy.S (strncpy): Likewise.
* sysdeps/m68k/memchr.S (memchr): Likewise.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/mips/mips64/memcpy.S (memcpy): Likewise.
* sysdeps/mips/mips64/memset.S (memset): Likewise.
* sysdeps/mips/memcpy.S (memcpy): Likewise.
* sysdeps/mips/memset.S (memset): Likewise.
* sysdeps/powerpc/powerpc32/memset.S (memset): Likewise.
* sysdeps/powerpc/powerpc32/strchr.S (strchr): Likewise.
* sysdeps/powerpc/powerpc32/strcmp.S (strcmp): Likewise.
* sysdeps/powerpc/powerpc32/strcpy.S (strcpy): Likewise.
* sysdeps/powerpc/powerpc32/strlen.S (strlen): Likewise.
* sysdeps/powerpc/powerpc64/memcpy.S (memcpy): Likewise.
* sysdeps/powerpc/powerpc64/memset.S (memset): Likewise.
* sysdeps/powerpc/powerpc64/strchr.S (strchr): Likewise.
* sysdeps/powerpc/powerpc64/strcmp.S (strcmp): Likewise.
* sysdeps/powerpc/powerpc64/strcpy.S (strcpy): Likewise.
* sysdeps/powerpc/powerpc64/strlen.S (strlen): Likewise.
* sysdeps/powerpc/strcat.c (strcat): Likewise.
* sysdeps/sparc/sparc32/memchr.S (memchr): Likewise.
* sysdeps/sparc/sparc32/memcpy.S (memcpy): Likewise.
* sysdeps/sparc/sparc32/memset.S (memset): Likewise.
* sysdeps/sparc/sparc32/strcat.S (strcat): Likewise.
* sysdeps/sparc/sparc32/strchr.S (strchr, strrchr): Likewise.
* sysdeps/sparc/sparc32/strcmp.S (strcmp): Likewise.
* sysdeps/sparc/sparc32/strcpy.S (strcpy): Likewise.
* sysdeps/sparc/sparc32/strlen.S (strlen): Likewise.
* sysdeps/sparc/sparc64/sparcv9b/memcpy.S (memcpy, memmove): Likewise.
* sysdeps/sparc/sparc64/memchr.S (memchr): Likewise.
* sysdeps/sparc/sparc64/memcpy.S (memcpy, memmove): Likewise.
* sysdeps/sparc/sparc64/memset.S (memset): Likewise.
* sysdeps/sparc/sparc64/strcat.S (strcat): Likewise.
* sysdeps/sparc/sparc64/strchr.S (strchr, strrchr): Likewise.
* sysdeps/sparc/sparc64/strcmp.S (strcmp): Likewise.
* sysdeps/sparc/sparc64/strcpy.S (strcpy): Likewise.
* sysdeps/sparc/sparc64/strcspn.S (strcspn): Likewise.
* sysdeps/sparc/sparc64/strlen.S (strlen): Likewise.
* sysdeps/sparc/sparc64/strncmp.S (strncmp): Likewise.
* sysdeps/sparc/sparc64/strncpy.S (strncpy): Likewise.
* sysdeps/sparc/sparc64/strpbrk.S (strpbrk): Likewise.
* sysdeps/sparc/sparc64/strspn.S (strspn): Likewise.
* sysdeps/sh/memcpy.S (memcpy): Likewise.
* sysdeps/sh/memset.S (memset): Likewise.
* sysdeps/sh/strlen.S (strlen): Likewise.
* sysdeps/s390/s390-32/memchr.S (memchr): Likewise.
* sysdeps/s390/s390-32/memcpy.S (memcpy): Likewise.
* sysdeps/s390/s390-32/memset.S (memset): Likewise.
* sysdeps/s390/s390-32/strcmp.S (strcmp): Likewise.
* sysdeps/s390/s390-32/strcpy.S (strcpy): Likewise.
* sysdeps/s390/s390-32/strncpy.S (strncpy): Likewise.
* sysdeps/s390/s390-64/memchr.S (memchr): Likewise.
* sysdeps/s390/s390-64/memcpy.S (memcpy): Likewise.
* sysdeps/s390/s390-64/memset.S (memset): Likewise.
* sysdeps/s390/s390-64/strcmp.S (strcmp): Likewise.
* sysdeps/s390/s390-64/strcpy.S (strcpy): Likewise.
* sysdeps/s390/s390-64/strncpy.S (strncpy): Likewise.
* sysdeps/x86_64/memcpy.S (memcpy): Likewise.
* sysdeps/x86_64/memset.S (memset): Likewise.
* sysdeps/x86_64/strcat.S (strcat): Likewise.
* sysdeps/x86_64/strchr.S (strchr): Likewise.
* sysdeps/x86_64/strcmp.S (strcmp): Likewise.
* sysdeps/x86_64/strcpy.S (strcpy): Likewise.
* sysdeps/x86_64/strcspn.S (strcspn): Likewise.
* sysdeps/x86_64/strlen.S (strlen): Likewise.
* sysdeps/x86_64/strspn.S (strspn): Likewise.
* string/string-inlines.c: Move...
* sysdeps/generic/string-inlines.c: ...here.
(__memcpy_g, __strchr_g): Remove.
(__NO_INLINE__): Define before including <string.h>,
undefine after. Include bits/string.h and bits/string2.h.
* sysdeps/i386/i486/string-inlines.c: New file.
* sysdeps/i386/string-inlines.c: New file.
* sysdeps/i386/i486/Versions: Remove.
All GLIBC_2.1.1 symbols moved...
* sysdeps/i386/Versions (libc): ...here.
2003-04-29 Ulrich Drepper <drepper@redhat.com>
2003-04-29 22:49:58 +00:00
|
|
|
libc_hidden_builtin_def (memmove)
|
2010-01-12 19:22:03 +00:00
|
|
|
#endif
|