mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-21 02:10:05 +00:00
a6f3079bfb
This patch fixes a warning ../include/features.h:328:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp] seen when building for ARM. This warning comes from libc-do-syscall.S being built for nscd: the nscd build uses _FORTIFY_SOURCE, while .S files aren't built with -O, and the combination produces a warning. As _FORTIFY_SOURCE doesn't do anything for .S files, undefining it in libc-do-syscall.S seems the simplest solution. Tested for ARM. * sysdeps/unix/sysv/linux/arm/libc-do-syscall.S (_FORTIFY_SOURCE): Undefine.
52 lines
1.7 KiB
ArmAsm
52 lines
1.7 KiB
ArmAsm
/* Copyright (C) 2010-2014 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* When this file is built for inclusion in nscd, _FORTIFY_SOURCE is
|
|
defined but -O is not used, resulting in a warning from features.h. */
|
|
#undef _FORTIFY_SOURCE
|
|
#include <sysdep.h>
|
|
|
|
/* Out-of-line syscall stub. We expect the system call number in ip
|
|
and return the raw result in r0. No registers are clobbered.
|
|
We could avoid using the stack for this, but the goal is accurate
|
|
unwind information - and while there is a reserved prefix in the
|
|
ARM unwind tables for register to register moves, the actual opcodes
|
|
are not defined. */
|
|
|
|
#if defined(__thumb__)
|
|
.thumb
|
|
.syntax unified
|
|
.hidden __libc_do_syscall
|
|
|
|
#undef CALL_MCOUNT
|
|
#define CALL_MCOUNT
|
|
|
|
ENTRY (__libc_do_syscall)
|
|
.fnstart
|
|
push {r7, lr}
|
|
.save {r7, lr}
|
|
cfi_adjust_cfa_offset (8)
|
|
cfi_rel_offset (r7, 0)
|
|
cfi_rel_offset (lr, 4)
|
|
mov r7, ip
|
|
swi 0x0
|
|
pop {r7, pc}
|
|
.fnend
|
|
END (__libc_do_syscall)
|
|
|
|
#endif /* __thumb__ */
|