1 /* 2 * check XMM registers for clobbers on Win64 3 * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com> 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 #ifndef AVUTIL_X86_W64XMMTEST_H 23 #define AVUTIL_X86_W64XMMTEST_H 24 25 #include <inttypes.h> 26 #include <stdint.h> 27 #include <stdlib.h> 28 #include <stdarg.h> 29 #include <string.h> 30 31 #include "libavutil/bswap.h" 32 33 #define storexmmregs(mem) \ 34 __asm__ volatile( \ 35 "movups %%xmm6 , 0x00(%0)\n\t" \ 36 "movups %%xmm7 , 0x10(%0)\n\t" \ 37 "movups %%xmm8 , 0x20(%0)\n\t" \ 38 "movups %%xmm9 , 0x30(%0)\n\t" \ 39 "movups %%xmm10, 0x40(%0)\n\t" \ 40 "movups %%xmm11, 0x50(%0)\n\t" \ 41 "movups %%xmm12, 0x60(%0)\n\t" \ 42 "movups %%xmm13, 0x70(%0)\n\t" \ 43 "movups %%xmm14, 0x80(%0)\n\t" \ 44 "movups %%xmm15, 0x90(%0)\n\t" \ 45 :: "r"(mem) : "memory") 46 47 #define testxmmclobbers(func, ctx, ...) \ 48 uint64_t xmm[2][10][2]; \ 49 int ret; \ 50 storexmmregs(xmm[0]); \ 51 ret = __real_ ## func(ctx, __VA_ARGS__); \ 52 storexmmregs(xmm[1]); \ 53 if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) { \ 54 int i; \ 55 av_log(ctx, AV_LOG_ERROR, \ 56 "XMM REGS CLOBBERED IN %s!\n", #func); \ 57 for (i = 0; i < 10; i ++) \ 58 if (xmm[0][i][0] != xmm[1][i][0] || \ 59 xmm[0][i][1] != xmm[1][i][1]) { \ 60 av_log(ctx, AV_LOG_ERROR, \ 61 "xmm%-2d = %016"PRIx64"%016"PRIx64"\n", \ 62 6 + i, av_bswap64(xmm[0][i][0]), \ 63 av_bswap64(xmm[0][i][1])); \ 64 av_log(ctx, AV_LOG_ERROR, \ 65 " -> %016"PRIx64"%016"PRIx64"\n", \ 66 av_bswap64(xmm[1][i][0]), \ 67 av_bswap64(xmm[1][i][1])); \ 68 } \ 69 abort(); \ 70 } \ 71 return ret 72 73 #define wrap(func) \ 74 int __real_ ## func; \ 75 int __wrap_ ## func; \ 76 int __wrap_ ## func 77 78 #endif /* AVUTIL_X86_W64XMMTEST_H */ 79