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