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2003-09-15 Jakub Jelinek <jakub@redhat.com> * sysdeps/i386/Makefile (sysdep-CFLAGS): If not in math or csu subdir, add -mpreferred-stack-boundary=4, with few exceptions. 2003-09-17 Jakub Jelinek <jakub@redhat.com> * Makeconfig (stack-align-test-flags): Set. * stdlib/Makefile (CFLAGS-tst-bsearch.c): Add $(stack-align-test-flags). * stdlib/tst-bsearch.c: Include tst-stack-align.h. (align_check): New var. (comp): Use TEST_STACK_ALIGN macro. (do_test): Fail if align_check != 1. * sysdeps/generic/tst-stack-align.h: New file. * sysdeps/i386/i686/Makefile (stack-align-test-flags): Add -msse. * sysdeps/i386/i686/tst-stack-align.h: New file.
36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/* Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stdio.h>
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#include <stdint.h>
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#define TEST_STACK_ALIGN() \
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({ \
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double _d = 12.0; \
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long double _ld = 15.0; \
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int _ret = 0; \
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printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \
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if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \
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_ret = 1; \
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\
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printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \
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if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \
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_ret = 1; \
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_ret; \
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})
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