diff options
author | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 04:17:19 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 04:17:19 +0000 |
commit | b5cc329c4fb831ce99cd683caf3c5b5114c90010 (patch) | |
tree | 620ffc2f72cafdb90b9a679c022d3406a88c392c /sysdeps/i386/i686 | |
parent | 10e0498e2d2de538b51b2685befc56f5c2691bf4 (diff) | |
download | glibc-b5cc329c4fb831ce99cd683caf3c5b5114c90010.zip glibc-b5cc329c4fb831ce99cd683caf3c5b5114c90010.tar.gz glibc-b5cc329c4fb831ce99cd683caf3c5b5114c90010.tar.bz2 |
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.
Diffstat (limited to 'sysdeps/i386/i686')
-rw-r--r-- | sysdeps/i386/i686/memcpy.S | 9 | ||||
-rw-r--r-- | sysdeps/i386/i686/memcpy_chk.S | 35 | ||||
-rw-r--r-- | sysdeps/i386/i686/memmove.S | 9 | ||||
-rw-r--r-- | sysdeps/i386/i686/memmove_chk.S | 35 | ||||
-rw-r--r-- | sysdeps/i386/i686/mempcpy.S | 7 | ||||
-rw-r--r-- | sysdeps/i386/i686/mempcpy_chk.S | 35 | ||||
-rw-r--r-- | sysdeps/i386/i686/memset.S | 7 | ||||
-rw-r--r-- | sysdeps/i386/i686/memset_chk.S | 35 |
8 files changed, 170 insertions, 2 deletions
diff --git a/sysdeps/i386/i686/memcpy.S b/sysdeps/i386/i686/memcpy.S index 865967c..00e84ec 100644 --- a/sysdeps/i386/i686/memcpy.S +++ b/sysdeps/i386/i686/memcpy.S @@ -1,7 +1,7 @@ /* Copy memory block and return pointer to beginning of destination block For Intel 80x86, x>=6. This file is part of the GNU C Library. - Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999. The GNU C Library is free software; you can redistribute it and/or @@ -31,6 +31,13 @@ #define LEN SRC+PTR_SIZE .text +#if defined PIC && !defined NOT_IN_libc +ENTRY (__memcpy_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__memcpy_chk) +#endif ENTRY (BP_SYM (memcpy)) ENTER diff --git a/sysdeps/i386/i686/memcpy_chk.S b/sysdeps/i386/i686/memcpy_chk.S new file mode 100644 index 0000000..561263f --- /dev/null +++ b/sysdeps/i386/i686/memcpy_chk.S @@ -0,0 +1,35 @@ +/* Checking memcpy for x86-64. + Copyright (C) 2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include "asm-syntax.h" + +#ifndef PIC + /* For libc.so this is defined in memcpy.S. + For libc.a, this is a separate source to avoid + memcpy bringing in __chk_fail and all routines + it calls. */ + .text +ENTRY (__memcpy_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb __chk_fail + jmp memcpy +END (__memcpy_chk) +#endif diff --git a/sysdeps/i386/i686/memmove.S b/sysdeps/i386/i686/memmove.S index 421b4ef..951e139 100644 --- a/sysdeps/i386/i686/memmove.S +++ b/sysdeps/i386/i686/memmove.S @@ -1,7 +1,7 @@ /* Copy memory block and return pointer to beginning of destination block For Intel 80x86, x>=6. This file is part of the GNU C Library. - Copyright (C) 2003 Free Software Foundation, Inc. + Copyright (C) 2003, 2004 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@cygnus.com>, 2003. The GNU C Library is free software; you can redistribute it and/or @@ -31,6 +31,13 @@ #define LEN SRC+PTR_SIZE .text +#if defined PIC && !defined NOT_IN_libc +ENTRY (__memmove_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__memmove_chk) +#endif ENTRY (BP_SYM (memmove)) ENTER diff --git a/sysdeps/i386/i686/memmove_chk.S b/sysdeps/i386/i686/memmove_chk.S new file mode 100644 index 0000000..23382ea --- /dev/null +++ b/sysdeps/i386/i686/memmove_chk.S @@ -0,0 +1,35 @@ +/* Checking memmove for x86-64. + Copyright (C) 2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include "asm-syntax.h" + +#ifndef PIC + /* For libc.so this is defined in memmove.S. + For libc.a, this is a separate source to avoid + memmove bringing in __chk_fail and all routines + it calls. */ + .text +ENTRY (__memmove_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb __chk_fail + jmp memmove +END (__memmove_chk) +#endif diff --git a/sysdeps/i386/i686/mempcpy.S b/sysdeps/i386/i686/mempcpy.S index 3ea89d4..843a358 100644 --- a/sysdeps/i386/i686/mempcpy.S +++ b/sysdeps/i386/i686/mempcpy.S @@ -31,6 +31,13 @@ #define LEN SRC+PTR_SIZE .text +#if defined PIC && !defined NOT_IN_libc +ENTRY (__mempcpy_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__mempcpy_chk) +#endif ENTRY (BP_SYM (__mempcpy)) ENTER diff --git a/sysdeps/i386/i686/mempcpy_chk.S b/sysdeps/i386/i686/mempcpy_chk.S new file mode 100644 index 0000000..dc9c609 --- /dev/null +++ b/sysdeps/i386/i686/mempcpy_chk.S @@ -0,0 +1,35 @@ +/* Checking mempcpy for x86-64. + Copyright (C) 2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include "asm-syntax.h" + +#ifndef PIC + /* For libc.so this is defined in mempcpy.S. + For libc.a, this is a separate source to avoid + mempcpy bringing in __chk_fail and all routines + it calls. */ + .text +ENTRY (__mempcpy_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb __chk_fail + jmp mempcpy +END (__mempcpy_chk) +#endif diff --git a/sysdeps/i386/i686/memset.S b/sysdeps/i386/i686/memset.S index 4ddcb39..561188f 100644 --- a/sysdeps/i386/i686/memset.S +++ b/sysdeps/i386/i686/memset.S @@ -39,6 +39,13 @@ #endif .text +#if defined PIC && !defined NOT_IN_libc && !BZERO_P +ENTRY (__memset_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__memset_chk) +#endif ENTRY (BP_SYM (memset)) ENTER diff --git a/sysdeps/i386/i686/memset_chk.S b/sysdeps/i386/i686/memset_chk.S new file mode 100644 index 0000000..d178654 --- /dev/null +++ b/sysdeps/i386/i686/memset_chk.S @@ -0,0 +1,35 @@ +/* Checking memset for x86-64. + Copyright (C) 2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include "asm-syntax.h" + +#ifndef PIC + /* For libc.so this is defined in memset.S. + For libc.a, this is a separate source to avoid + memset bringing in __chk_fail and all routines + it calls. */ + .text +ENTRY (__memset_chk) + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb __chk_fail + jmp memset +END (__memset_chk) +#endif |