mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
be184b1d26
2005-01-21 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run tst-align2. * elf/tst-align2.c: New test. * elf/tst-alignmod2.c: New file. * sysdeps/powerpc/tst-stack-align.h: New file. * sysdeps/i386/dl-machine.h (RTLD_START): Align stack and clear frame pointer before calling _dl_init. * sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise.
48 lines
2.0 KiB
C
48 lines
2.0 KiB
C
/* Copyright (C) 2005 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 <stdio.h>
|
|
#include <stdint.h>
|
|
|
|
#define TEST_STACK_ALIGN() \
|
|
({ \
|
|
/* Altivec __vector int etc. needs 16byte aligned stack. \
|
|
Instead of using altivec.h here, use aligned attribute instead. */ \
|
|
struct _S \
|
|
{ \
|
|
int _i __attribute__((aligned (16))); \
|
|
int _j[3]; \
|
|
} _s = { ._i = 18, ._j[0] = 19, ._j[1] = 20, ._j[2] = 21 }; \
|
|
double _d = 12.0; \
|
|
long double _ld = 15.0; \
|
|
int _ret = 0; \
|
|
printf ("__vector int: { %d, %d, %d, %d } %p %zu\n", _s._i, _s._j[0], \
|
|
_s._j[1], _s._j[2], &_s, __alignof (_s)); \
|
|
if ((((uintptr_t) &_s) & (__alignof (_s) - 1)) != 0) \
|
|
_ret = 1; \
|
|
\
|
|
printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \
|
|
if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \
|
|
_ret = 1; \
|
|
\
|
|
printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \
|
|
if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \
|
|
_ret = 1; \
|
|
_ret; \
|
|
})
|