| 1 | GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
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| 2 | Copyright (C) 2018 Free Software Foundation, Inc.
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| 3 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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| 4 | This is free software: you are free to change and redistribute it.
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| 5 | There is NO WARRANTY, to the extent permitted by law. Type "show copying"
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| 6 | and "show warranty" for details.
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| 7 | This GDB was configured as "x86_64-linux-gnu".
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| 8 | Type "show configuration" for configuration details.
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| 9 | For bug reporting instructions, please see:
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| 10 | <http://www.gnu.org/software/gdb/bugs/>.
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| 11 | Find the GDB manual and other documentation resources online at:
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| 12 | <http://www.gnu.org/software/gdb/documentation/>.
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| 13 | For help, type "help".
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| 14 | Type "apropos word" to search for commands related to "word"...
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| 15 | Reading symbols from ./ffmpeg_g...done.
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| 16 | (gdb) r
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| 17 | Starting program: ffmpeg/ffmpeg_g -y -i tmp.avi -map 0 -c:a:104 utvideo -c:v magicyuv -disposition:a g722 -disposition:s:8 pam -vframes 0 -aframes 25 -ar 22050 -ac 5 tmp/tmp_.adx
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| 18 | [Thread debugging using libthread_db enabled]
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| 19 | Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
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| 20 | ffmpeg version N-94137-g89b96900fa Copyright (c) 2000-2019 the FFmpeg developers
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| 21 | built with clang version 9.0.0 (https://github.com/llvm/llvm-project.git 442a120567a4bc6c59bc754f9edabfb770086f36)
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| 22 | configuration: --cc=clang --cxx=clang++ --extra-cflags=-g --extra-cxxflags=-g --extra-ldflags='-fsanitize=address -g' --prefix=ffmpeg/install --enable-debug --toolchain=clang-asan
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| 23 | libavutil 56. 30.100 / 56. 30.100
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| 24 | libavcodec 58. 53.100 / 58. 53.100
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| 25 | libavformat 58. 28.101 / 58. 28.101
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| 26 | libavdevice 58. 7.100 / 58. 7.100
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| 27 | libavfilter 7. 55.100 / 7. 55.100
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| 28 | libswscale 5. 4.101 / 5. 4.101
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| 29 | libswresample 3. 4.100 / 3. 4.100
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| 30 | Input #0, avi, from 'tmp.avi':
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| 31 | Duration: 00:00:03.14, start: 0.000000, bitrate: 736 kb/s
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| 32 | Stream #0:0: Video: indeo4 (IV41 / 0x31345649), yuv410p, 256x240, 731 kb/s, 35 fps, 35 tbr, 35 tbn, 35 tbc
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| 33 | Stream mapping:
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| 34 | Stream #0:0 -> #0:0 (indeo4 (native) -> magicyuv (native))
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| 35 | Press [q] to stop, [?] for help
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| 36 | Finishing stream 0:0 without any data written to it.
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| 37 | [New Thread 0x7ffff025b700 (LWP 13547)]
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| 38 | [New Thread 0x7fffefa5a700 (LWP 13548)]
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| 39 | [New Thread 0x7fffef259700 (LWP 13549)]
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| 40 | [New Thread 0x7fffeea58700 (LWP 13550)]
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| 41 | [New Thread 0x7fffee257700 (LWP 13551)]
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| 42 | [New Thread 0x7fffeda56700 (LWP 13552)]
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| 43 | [New Thread 0x7fffed255700 (LWP 13553)]
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| 44 | [New Thread 0x7fffeca54700 (LWP 13554)]
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| 45 | [New Thread 0x7fffec253700 (LWP 13555)]
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| 46 | [New Thread 0x7fffeba52700 (LWP 13556)]
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| 47 | [New Thread 0x7fffeb251700 (LWP 13557)]
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| 48 | [New Thread 0x7fffeaa50700 (LWP 13558)]
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| 49 | [New Thread 0x7fffea24f700 (LWP 13561)]
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| 50 | [New Thread 0x7fffe9a4e700 (LWP 13562)]
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| 51 | [New Thread 0x7fffe924d700 (LWP 13563)]
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| 52 | [New Thread 0x7fffe8a4c700 (LWP 13565)]
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| 53 | [New Thread 0x7fffe824b700 (LWP 13567)]
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| 54 | [New Thread 0x7fffe7a4a700 (LWP 13568)]
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| 55 | [New Thread 0x7fffe7249700 (LWP 13569)]
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| 56 | [New Thread 0x7fffe6a48700 (LWP 13570)]
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| 57 | [New Thread 0x7fffe6247700 (LWP 13571)]
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| 58 | [New Thread 0x7fffe5a46700 (LWP 13572)]
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| 59 | [New Thread 0x7fffe5245700 (LWP 13573)]
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| 60 | [New Thread 0x7fffe4a44700 (LWP 13574)]
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| 61 | Output #0, adx, to 'tmp/tmp_.adx':
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| 62 | Metadata:
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| 63 | encoder : Lavf58.28.101
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| 64 | Stream #0:0: Video: magicyuv (M8Y0 / 0x3059384D), yuv420p, 256x240, q=2-31, 200 kb/s, 35 fps, 35 tbn, 35 tbc
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| 65 | Metadata:
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| 66 | encoder : Lavc58.53.100 magicyuv
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| 67 | libavformat/rawenc.c:70:50: runtime error: division by zero
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| 68 | SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior libavformat/rawenc.c:70:50 in
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| 69 |
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| 70 | Thread 1 "ffmpeg_g" received signal SIGFPE, Arithmetic exception.
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| 71 | 0x000000000240b81e in adx_write_trailer (s=<optimized out>) at libavformat/rawenc.c:70
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| 72 | 70 uint64_t sample_count = (file_size - 36) / par->channels / 18 * 32;
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| 73 | (gdb) bt
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| 74 | #0 0x000000000240b81e in adx_write_trailer (s=<optimized out>) at libavformat/rawenc.c:70
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| 75 | #1 0x0000000002242fa6 in av_write_trailer (s=0x61b000001580) at libavformat/mux.c:1283
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| 76 | #2 0x00000000005c553a in transcode () at fftools/ffmpeg.c:4726
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| 77 | #3 0x00000000005b2c0c in main (argc=<optimized out>, argv=<optimized out>) at fftools/ffmpeg.c:4894
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| 78 | (gdb) disass $pc-32,$pc+32
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| 79 | Dump of assembler code from 0x240b7fe to 0x240b83e:
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| 80 | 0x000000000240b7fe <adx_write_trailer+926>: test %r13,%r13
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| 81 | 0x000000000240b801 <adx_write_trailer+929>: je 0x240bab8 <adx_write_trailer+1624>
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| 82 | 0x000000000240b807 <adx_write_trailer+935>: test %al,%al
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| 83 | 0x000000000240b809 <adx_write_trailer+937>: je 0x240bab8 <adx_write_trailer+1624>
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| 84 | 0x000000000240b80f <adx_write_trailer+943>: mov $0xb280f20,%edi
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| 85 | 0x000000000240b814 <adx_write_trailer+948>: callq 0x4dc3f0 <__sanitizer_cov_trace_pc_guard(__sanitizer::u32*)>
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| 86 | 0x000000000240b819 <adx_write_trailer+953>: mov %r12,%rax
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| 87 | 0x000000000240b81c <adx_write_trailer+956>: cqto
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| 88 | => 0x000000000240b81e <adx_write_trailer+958>: idiv %r13
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| 89 | 0x000000000240b821 <adx_write_trailer+961>: movabs $0xe38e38e38e38e39,%rcx
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| 90 | 0x000000000240b82b <adx_write_trailer+971>: imul %rcx
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| 91 | 0x000000000240b82e <adx_write_trailer+974>: mov %rdx,%rbx
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| 92 | 0x000000000240b831 <adx_write_trailer+977>: shr $0x3f,%rbx
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| 93 | 0x000000000240b835 <adx_write_trailer+981>: add %rdx,%rbx
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| 94 | 0x000000000240b838 <adx_write_trailer+984>: imul $0x20,%rbx,%r12
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| 95 | 0x000000000240b83c <adx_write_trailer+988>: jo 0x240ba7b <adx_write_trailer+1563>
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| 96 | End of assembler dump.
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| 97 | (gdb) info all-registers
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| 98 | rax 0xffffffffffffffdc -36
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| 99 | rbx 0xffffffffffffffff -1
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| 100 | rcx 0x7fffffffb800 140737488336896
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| 101 | rdx 0xffffffffffffffff -1
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| 102 | rsi 0x7fffffffb800 140737488336896
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| 103 | rdi 0x7fffffffb871 140737488337009
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| 104 | rbp 0xffffffffffffffff 0xffffffffffffffff
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| 105 | rsp 0x7fffffffbb00 0x7fffffffbb00
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| 106 | r8 0x6a6cb03abcebc041 7668698031829270593
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| 107 | r9 0x0 0
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| 108 | r10 0x7ffff186c094 140737245528212
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| 109 | r11 0x202 514
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| 110 | r12 0xffffffffffffffdc -36
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| 111 | r13 0x0 0
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| 112 | r14 0x613000000200 106858786324992
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| 113 | r15 0x0 0
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| 114 | rip 0x240b81e 0x240b81e <adx_write_trailer+958>
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| 115 | eflags 0x10202 [ IF RF ]
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| 116 | cs 0x33 51
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| 117 | ss 0x2b 43
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| 118 | ds 0x0 0
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| 119 | es 0x0 0
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| 120 | fs 0x0 0
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| 121 | gs 0x0 0
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| 122 | st0 0 (raw 0x00000000000000000000)
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| 123 | st1 0 (raw 0x00000000000000000000)
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| 124 | st2 0 (raw 0x00000000000000000000)
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| 125 | st3 0 (raw 0x00000000000000000000)
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| 126 | st4 0 (raw 0x00000000000000000000)
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| 127 | st5 0 (raw 0x00000000000000000000)
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| 128 | st6 0 (raw 0x00000000000000000000)
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| 129 |
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