diff options
| -rwxr-xr-x | configure | 14 | ||||
| -rw-r--r-- | libavcodec/x86/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/x86/w64xmmtest.c | 80 | ||||
| -rw-r--r-- | libavutil/x86/w64xmmtest.h | 71 | ||||
| -rw-r--r-- | libswscale/Makefile | 2 | ||||
| -rw-r--r-- | libswscale/x86/w64xmmtest.c | 31 |
6 files changed, 199 insertions, 0 deletions
@@ -254,6 +254,8 @@ Developer options (useful when working on Libav itself): --enable-extra-warnings enable more compiler warnings --samples=PATH location of test samples for FATE, if not set use \$FATE_SAMPLES at make invocation time. + --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only; + should be used only for debugging purposes) NOTE: Object files are built at the place where configure is launched. EOF @@ -991,6 +993,7 @@ CONFIG_LIST=" vda vdpau version3 + xmm_clobber_test x11grab zlib " @@ -3065,6 +3068,17 @@ check_ldflags -Wl,--warn-common check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic +enabled xmm_clobber_test && \ + check_ldflags -Wl,--wrap,avcodec_open2 \ + -Wl,--wrap,avcodec_decode_audio4 \ + -Wl,--wrap,avcodec_decode_video2 \ + -Wl,--wrap,avcodec_decode_subtitle2 \ + -Wl,--wrap,avcodec_encode_audio2 \ + -Wl,--wrap,avcodec_encode_video \ + -Wl,--wrap,avcodec_encode_subtitle \ + -Wl,--wrap,sws_scale || \ + disable xmm_clobber_test + echo "X{};" > $TMPV if test_ldflags -Wl,--version-script,$TMPV; then append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver' diff --git a/libavcodec/x86/Makefile b/libavcodec/x86/Makefile index 930ace78c4..fc88433783 100644 --- a/libavcodec/x86/Makefile +++ b/libavcodec/x86/Makefile @@ -74,3 +74,4 @@ OBJS-$(HAVE_MMX) += x86/dsputil_mmx.o \ x86/mpegvideo_mmx.o \ x86/simple_idct_mmx.o \ +OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o diff --git a/libavcodec/x86/w64xmmtest.c b/libavcodec/x86/w64xmmtest.c new file mode 100644 index 0000000000..f6e3de9496 --- /dev/null +++ b/libavcodec/x86/w64xmmtest.c @@ -0,0 +1,80 @@ +/* + * check XMM registers for clobbers on Win64 + * Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavcodec/avcodec.h" +#include "libavutil/x86/w64xmmtest.h" + +wrap(avcodec_open2(AVCodecContext *avctx, + AVCodec *codec, + AVDictionary **options)) +{ + testxmmclobbers(avcodec_open2, avctx, codec, options); +} + +wrap(avcodec_decode_audio4(AVCodecContext *avctx, + AVFrame *frame, + int *got_frame_ptr, + AVPacket *avpkt)) +{ + testxmmclobbers(avcodec_decode_audio4, avctx, frame, + got_frame_ptr, avpkt); +} + +wrap(avcodec_decode_video2(AVCodecContext *avctx, + AVFrame *picture, + int *got_picture_ptr, + AVPacket *avpkt)) +{ + testxmmclobbers(avcodec_decode_video2, avctx, picture, + got_picture_ptr, avpkt); +} + +wrap(avcodec_decode_subtitle2(AVCodecContext *avctx, + AVSubtitle *sub, + int *got_sub_ptr, + AVPacket *avpkt)) +{ + testxmmclobbers(avcodec_decode_subtitle2, avctx, sub, + got_sub_ptr, avpkt); +} + +wrap(avcodec_encode_audio2(AVCodecContext *avctx, + AVPacket *avpkt, + const AVFrame *frame, + int *got_packet_ptr)) +{ + testxmmclobbers(avcodec_encode_audio2, avctx, avpkt, frame, + got_packet_ptr); +} + +wrap(avcodec_encode_video(AVCodecContext *avctx, + uint8_t *buf, int buf_size, + const AVFrame *pict)) +{ + testxmmclobbers(avcodec_encode_video, avctx, buf, buf_size, pict); +} + +wrap(avcodec_encode_subtitle(AVCodecContext *avctx, + uint8_t *buf, int buf_size, + const AVSubtitle *sub)) +{ + testxmmclobbers(avcodec_encode_subtitle, avctx, buf, buf_size, sub); +} diff --git a/libavutil/x86/w64xmmtest.h b/libavutil/x86/w64xmmtest.h new file mode 100644 index 0000000000..1c1ded86ec --- /dev/null +++ b/libavutil/x86/w64xmmtest.h @@ -0,0 +1,71 @@ +/* + * check XMM registers for clobbers on Win64 + * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <stdlib.h> +#include <stdarg.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 diff --git a/libswscale/Makefile b/libswscale/Makefile index bef4200c59..0aee7e497b 100644 --- a/libswscale/Makefile +++ b/libswscale/Makefile @@ -21,6 +21,8 @@ MMX-OBJS-$(HAVE_YASM) += x86/input.o \ x86/output.o \ x86/scale.o +OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o + TESTPROGS = colorspace swscale DIRS = bfin mlib ppc sparc x86 diff --git a/libswscale/x86/w64xmmtest.c b/libswscale/x86/w64xmmtest.c new file mode 100644 index 0000000000..dd9a2a4378 --- /dev/null +++ b/libswscale/x86/w64xmmtest.c @@ -0,0 +1,31 @@ +/* + * check XMM registers for clobbers on Win64 + * Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/x86/w64xmmtest.h" +#include "libswscale/swscale.h" + +wrap(sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], + const int srcStride[], int srcSliceY, int srcSliceH, + uint8_t *const dst[], const int dstStride[])) +{ + testxmmclobbers(sws_scale, c, srcSlice, srcStride, srcSliceY, + srcSliceH, dst, dstStride); +} |