--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
vda
vdpau
version3
+ xmm_clobber_test
x11grab
zlib
"
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'
x86/mpegvideo_mmx.o \
x86/simple_idct_mmx.o \
+OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o
--- /dev/null
+/*
+ * 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);
+}
--- /dev/null
+/*
+ * 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
x86/output.o \
x86/scale.o
+OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o
+
TESTPROGS = colorspace swscale
DIRS = bfin mlib ppc sparc x86
--- /dev/null
+/*
+ * 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);
+}
projects / ffmpeg / commitdiff