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7cf4c9037c
Both GCC and Clang create code that inlines the loops in next_input() and next_output() at high optimization levels (presumably when there are not too many devices) and this code leads to the creation of .got entries: e7: 48 3b 3d 00 00 00 00 cmp 0x0(%rip),%rdi # ee <av_input_video_device_next+0xe> ea: R_X86_64_REX_GOTPCRELX ff_alsa_demuxer-0x4 ee: 74 43 je 133 <av_input_video_device_next+0x53> f0: 48 3b 3d 00 00 00 00 cmp 0x0(%rip),%rdi # f7 <av_input_video_device_next+0x17> f3: R_X86_64_REX_GOTPCRELX ff_fbdev_demuxer-0x4 f7: 74 41 je 13a <av_input_video_device_next+0x5a> These relocations can't be fixed up lateron when it is known that the symbols exist in the same DSO. This commit therefore marks these symbols as hidden, leading to code like this: f7: 48 8d 05 00 00 00 00 lea 0x0(%rip),%rax # fe <av_input_video_device_next+0xe> fa: R_X86_64_PC32 ff_alsa_demuxer-0x4 fe: 48 39 c7 cmp %rax,%rdi 101: 74 55 je 158 <av_input_video_device_next+0x68> 103: 48 8d 05 00 00 00 00 lea 0x0(%rip),%rax # 10a <av_input_video_device_next+0x1a> 106: R_X86_64_PC32 ff_fbdev_demuxer-0x4 10a: 48 39 c7 cmp %rax,%rdi 10d: 74 50 je 15f <av_input_video_device_next+0x6f> (Note: It is actually strange that the compiler creates code that tries to read the addresses from the .got given that the addresses can be read directly from indev_list/outdev_list.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> |
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| .. | ||
| tests | ||
| .gitignore | ||
| alldevices.c | ||
| alsa_dec.c | ||
| alsa_enc.c | ||
| alsa.c | ||
| alsa.h | ||
| android_camera.c | ||
| audiotoolbox.m | ||
| avdevice.c | ||
| avdevice.h | ||
| avdeviceres.rc | ||
| avfoundation.m | ||
| bktr.c | ||
| caca.c | ||
| ccfifo.c | ||
| decklink_common_c.h | ||
| decklink_common.cpp | ||
| decklink_common.h | ||
| decklink_dec_c.c | ||
| decklink_dec.cpp | ||
| decklink_dec.h | ||
| decklink_enc_c.c | ||
| decklink_enc.cpp | ||
| decklink_enc.h | ||
| dshow_capture.h | ||
| dshow_common.c | ||
| dshow_crossbar.c | ||
| dshow_enummediatypes.c | ||
| dshow_enumpins.c | ||
| dshow_filter.c | ||
| dshow_pin.c | ||
| dshow.c | ||
| fbdev_common.c | ||
| fbdev_common.h | ||
| fbdev_dec.c | ||
| fbdev_enc.c | ||
| file_open.c | ||
| gdigrab.c | ||
| iec61883.c | ||
| internal.h | ||
| jack.c | ||
| kmsgrab.c | ||
| lavfi.c | ||
| libavdevice.v | ||
| libcdio.c | ||
| libdc1394.c | ||
| Makefile | ||
| openal-dec.c | ||
| opengl_enc_shaders.h | ||
| opengl_enc.c | ||
| oss_dec.c | ||
| oss_enc.c | ||
| oss.c | ||
| oss.h | ||
| pulse_audio_common.c | ||
| pulse_audio_common.h | ||
| pulse_audio_dec.c | ||
| pulse_audio_enc.c | ||
| reverse.c | ||
| sdl2.c | ||
| sndio_dec.c | ||
| sndio_enc.c | ||
| sndio.c | ||
| sndio.h | ||
| timefilter.c | ||
| timefilter.h | ||
| utils.c | ||
| v4l2-common.c | ||
| v4l2-common.h | ||
| v4l2.c | ||
| v4l2enc.c | ||
| version_major.h | ||
| version.c | ||
| version.h | ||
| vfwcap.c | ||
| xcbgrab.c | ||
| xv.c | ||