repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 | #include <inttypes.h> | |
| 23 | #include <stdint.h> | |
| 24 | #include <stdlib.h> | |
| 25 | #include <stdarg.h> | |
| 26 | #include <string.h> | |
| 27 | ||
| 28 | #include "libavutil/bswap.h" | |
| 29 | ||
| 30 | #define storexmmregs(mem) \ | |
| 31 | __asm__ volatile( \ | |
| 32 | "movups %%xmm6 , 0x00(%0)\n\t" \ | |
| 33 | "movups %%xmm7 , 0x10(%0)\n\t" \ | |
| 34 | "movups %%xmm8 , 0x20(%0)\n\t" \ | |
| 35 | "movups %%xmm9 , 0x30(%0)\n\t" \ | |
| 36 | "movups %%xmm10, 0x40(%0)\n\t" \ | |
| 37 | "movups %%xmm11, 0x50(%0)\n\t" \ | |
| 38 | "movups %%xmm12, 0x60(%0)\n\t" \ | |
| 39 | "movups %%xmm13, 0x70(%0)\n\t" \ | |
| 40 | "movups %%xmm14, 0x80(%0)\n\t" \ | |
| 41 | "movups %%xmm15, 0x90(%0)\n\t" \ | |
| 42 | :: "r"(mem) : "memory") | |
| 43 | ||
| 44 | #define testxmmclobbers(func, ctx, ...) \ | |
| 45 | uint64_t xmm[2][10][2]; \ | |
| 46 | int ret; \ | |
| 47 | storexmmregs(xmm[0]); \ | |
| 48 | ret = __real_ ## func(ctx, __VA_ARGS__); \ | |
| 49 | storexmmregs(xmm[1]); \ | |
| 50 | if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) { \ | |
| 51 | int i; \ | |
| 52 | av_log(ctx, AV_LOG_ERROR, \ | |
| 53 | "XMM REGS CLOBBERED IN %s!\n", #func); \ | |
| 54 | for (i = 0; i < 10; i ++) \ | |
| 55 | if (xmm[0][i][0] != xmm[1][i][0] || \ | |
| 56 | xmm[0][i][1] != xmm[1][i][1]) { \ | |
| 57 | av_log(ctx, AV_LOG_ERROR, \ | |
| 58 | "xmm%-2d = %016"PRIx64"%016"PRIx64"\n", \ | |
| 59 | 6 + i, av_bswap64(xmm[0][i][0]), \ | |
| 60 | av_bswap64(xmm[0][i][1])); \ | |
| 61 | av_log(ctx, AV_LOG_ERROR, \ | |
| 62 | " -> %016"PRIx64"%016"PRIx64"\n", \ | |
| 63 | av_bswap64(xmm[1][i][0]), \ | |
| 64 | av_bswap64(xmm[1][i][1])); \ | |
| 65 | } \ | |
| 66 | abort(); \ | |
| 67 | } \ | |
| 68 | return ret | |
| 69 | ||
| 70 | #define wrap(func) \ | |
| 71 | int __real_ ## func; \ | |
| 72 | int __wrap_ ## func; \ | |
| 73 | int __wrap_ ## func |