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72 lines
3.1 KiB
C
72 lines
3.1 KiB
C
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/*
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* check XMM registers for clobbers on Win64
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* Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav 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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*
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* Libav 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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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "libavutil/bswap.h"
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#define storexmmregs(mem) \
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__asm__ volatile( \
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"movups %%xmm6 , 0x00(%0)\n\t" \
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"movups %%xmm7 , 0x10(%0)\n\t" \
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"movups %%xmm8 , 0x20(%0)\n\t" \
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"movups %%xmm9 , 0x30(%0)\n\t" \
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"movups %%xmm10, 0x40(%0)\n\t" \
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"movups %%xmm11, 0x50(%0)\n\t" \
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"movups %%xmm12, 0x60(%0)\n\t" \
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"movups %%xmm13, 0x70(%0)\n\t" \
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"movups %%xmm14, 0x80(%0)\n\t" \
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"movups %%xmm15, 0x90(%0)\n\t" \
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:: "r"(mem) : "memory")
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#define testxmmclobbers(func, ctx, ...) \
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uint64_t xmm[2][10][2]; \
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int ret; \
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storexmmregs(xmm[0]); \
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ret = __real_ ## func(ctx, __VA_ARGS__); \
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storexmmregs(xmm[1]); \
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if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) { \
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int i; \
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av_log(ctx, AV_LOG_ERROR, \
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"XMM REGS CLOBBERED IN %s!\n", #func); \
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for (i = 0; i < 10; i ++) \
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if (xmm[0][i][0] != xmm[1][i][0] || \
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xmm[0][i][1] != xmm[1][i][1]) { \
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av_log(ctx, AV_LOG_ERROR, \
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"xmm%-2d = %016"PRIx64"%016"PRIx64"\n", \
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6 + i, av_bswap64(xmm[0][i][0]), \
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av_bswap64(xmm[0][i][1])); \
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av_log(ctx, AV_LOG_ERROR, \
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" -> %016"PRIx64"%016"PRIx64"\n", \
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av_bswap64(xmm[1][i][0]), \
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av_bswap64(xmm[1][i][1])); \
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} \
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abort(); \
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} \
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return ret
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#define wrap(func) \
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int __real_ ## func; \
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int __wrap_ ## func; \
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int __wrap_ ## func
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