mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-11 20:00:07 +00:00
553cc5f9ad
map if requested.
* debug/chk_fail.c: Request backtrace and memory map dump.
* Versions.def: Add GLIBC_2.4 for libc.
* debug/fgets_chk.c: New file.
* debug/fgets_u_chk.c: New file.
* debug/getcwd_chk.c: New file.
* debug/getwd_chk.c: New file.
* debug/readlink_chk.c: New file.
* debug/read_chk.c: New file.
* debug/pread_chk.c: New file.
* debug/pread64_chk.c: New file.
* debug/recv_chk.c: New file.
* debug/recvfrom_chk.c: New file.
* debug/Versions: Add all new functions with version GLIBC_2.4.
* debug/Makefile (routines): Add fgets_chk, fgets_u_chk, read_chk,
pread_chk, pread64_chk, recv_chk, recvfrom_chk, readlink_chk,
getwd_chk, and getcwd_chk. Plus appropriate CFLAGS definitions.
* debug/tst-chk1.c: Add more tests.
* libio/bits/stdio2.h: Add macros for fgets and fgets_unlocked.
* include/stdio.h: Declare __fgets_chk and __fgets_unlocked_chk.
* posix/unistd.h: Include <bits/unistd.h> for fortification.
* posix/bits/unistd.h: New file.
* posix/Makefile (headers): Add bits/unistd.h.
* socket/sys/socket.h: Include <bits/socket2.h> for fortification.
* socket/bits/socket2.h: New file.
* socket/Makefile (headers): Add bits/socket2.h.
* string/bits/string3.h: Extend memset macro to check for zero 3rd
parameter and use __memset_zero_constant_len_parameter in that case.
* sysdeps/generic/memset_chk.c: Add
__memset_zero_constant_len_parameter alias and linker warning.
* debug/Versions: Add __memset_zero_constant_len_parameter to libc
with version GLIBC_2.4.
* sysdeps/generic/bits/types.h: Don't unnecessarily use __extension__
in __STD_TYPE definition.
2005-02-21 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.c (malloc_printerr): If MALLOC_CHECK_={5,7}, print
the error message rather than program name.
2005-02-21 Ulrich Drepper <drepper@redhat.com>
110 lines
2.6 KiB
ArmAsm
110 lines
2.6 KiB
ArmAsm
/* memset/bzero -- set memory area to CH/0
|
|
Highly optimized version for ix86, x>=6.
|
|
Copyright (C) 1999, 2000, 2003, 2005 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
|
|
|
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"
|
|
#include "bp-sym.h"
|
|
#include "bp-asm.h"
|
|
|
|
/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
|
|
#define BZERO_P (defined memset)
|
|
|
|
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
|
#if BZERO_P
|
|
# define DEST PARMS
|
|
# define LEN DEST+PTR_SIZE
|
|
#else
|
|
# define RTN PARMS
|
|
# define DEST RTN+RTN_SIZE
|
|
# define CHR DEST+PTR_SIZE
|
|
# define LEN CHR+4
|
|
#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
|
|
|
|
cld
|
|
pushl %edi
|
|
movl DEST(%esp), %edx
|
|
movl LEN(%esp), %ecx
|
|
CHECK_BOUNDS_BOTH_WIDE (%edx, DEST(%esp), %ecx)
|
|
#if BZERO_P
|
|
xorl %eax, %eax /* fill with 0 */
|
|
#else
|
|
movzbl CHR(%esp), %eax
|
|
#endif
|
|
jecxz 1f
|
|
movl %edx, %edi
|
|
andl $3, %edx
|
|
jz 2f
|
|
jnp 3f
|
|
stosb
|
|
decl %ecx
|
|
jz 1f
|
|
3: stosb
|
|
decl %ecx
|
|
jz 1f
|
|
xorl $3, %edx
|
|
jz 2f
|
|
stosb
|
|
decl %ecx
|
|
2: movl %ecx, %edx
|
|
shrl $2, %ecx
|
|
andl $3, %edx
|
|
#if !BZERO_P
|
|
imul $0x01010101, %eax
|
|
#endif
|
|
rep
|
|
stosl
|
|
movl %edx, %ecx
|
|
rep
|
|
stosb
|
|
|
|
1:
|
|
#if !BZERO_P
|
|
movl DEST(%esp), %eax /* start address of destination is result */
|
|
RETURN_BOUNDED_POINTER (DEST(%esp))
|
|
#endif
|
|
popl %edi
|
|
|
|
LEAVE
|
|
#if BZERO_P
|
|
ret
|
|
#else
|
|
RET_PTR
|
|
#endif
|
|
END (BP_SYM (memset))
|
|
libc_hidden_builtin_def (memset)
|
|
|
|
#if defined PIC && !defined NOT_IN_libc && !BZERO_P
|
|
strong_alias (__memset_chk, __memset_zero_constant_len_parameter)
|
|
.section .gnu.warning.__memset_zero_constant_len_parameter
|
|
.string "memset used with constant zero length parameter; this could be due to transposed parameters"
|
|
#endif
|