使用Breakpad捕获程序崩溃
本文介绍如何利用Google Breakpad工具捕获程序崩溃时产生的内存转储文件，并解析这些文件来定位问题原因。通过示例展示了如何在Linux环境下配置并使用Breakpad，包括创建崩溃转储、生成符号文件及解析堆栈跟踪。
###google breakpad tutorial
offical site
offical site on github
####Work on linux
git clone git@github.com:google/breakpad.git- Go to root directory and
./configure && make - The offical repo doesn't has the file
linux_syscall_support.h, there is a compile error. If we want to make the compile all pass, we should using google's VCS toolgclient syncto get the file from somewhere else. However we can't access google's server in China right now, so I fork a new repo and add this file to the proper path. The repo isgit@github.com:aquar25/breakpad.git. Because mozilla is also using breakpad, we can checkout the source code from its website - Using breakpad in application
#include "client/linux/handler/exception_handler.h"
static bool dumpCallback(const google_breakpad::MinidumpDescriptor& descriptor,
void* context, bool succeeded)
{
printf("Dump path: %s\n", descriptor.path());
return succeeded;
}
void crash()
{
volatile int* a = (int*)(NULL);
*a = 1;
}
int main(int argc, char* argv[]) {
google_breakpad::MinidumpDescriptor descriptor("/home/edison/tmp");
google_breakpad::ExceptionHandler eh(descriptor, NULL, dumpCallback, NULL, true, -1);
printf("Begin work:\n");
crash();
printf("end work\n");
return 0;
}
- Compile the application
g++ -std=gnu++0x -g Test.cpp -I. -L./client/linux/ -lbreakpad_client -lpthread -o test - Generate symbol file using
tools/linux/dump_syms/dump_syms ./test > test.sym - execute the application will generate the
*.dmpfile in/home/edison/tmp - make the directory for minidump_stackwalk
- the directory name is in the first line of
*.symfile, usinghead -n1 test.symto see itMODULE Linux x86_64 134EB61AC9327CA7389BD74B6E35EC000 test - construct the directory for stackwalk as follow:
mkdir -p ./symbols/test/134EB61AC9327CA7389BD74B6E35EC000mv test.sym ./symbols/test/134EB61AC9327CA7389BD74B6E35EC000
- the directory name is in the first line of
- using minidump_stackwalk
breakpad/src$ processor/minidump_stackwalk 0b5b40af-53dd-9b07-41b2f6d2-7b5a27c4.dmp ./symbolswill output some infomation like:2016-08-01 23:51:19: minidump.cc:4286: INFO: Minidump opened minidump 0b5b40af-53dd-9b07-41b2f6d2-7b5a27c4.dmp 2016-08-01 23:51:19: minidump.cc:4406: INFO: Minidump not byte-swapping minidump 2016-08-01 23:51:19: minidump.cc:4883: INFO: GetStream: type 15 not present 2016-08-01 23:51:19: minidump.cc:4883: INFO: GetStream: type 1197932545 not present 2016-08-01 23:51:19: minidump.cc:4883: INFO: GetStream: type 1197932546 not present 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /media/edison/data/code/google/breakpad/src/test 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libm-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libc-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libgcc_s.so.1 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libpthread-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/ld-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for linux-gate.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /media/edison/data/code/google/breakpad/src/test 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libm-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libc-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libgcc_s.so.1 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/libpthread-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for /lib/x86_64-linux-gnu/ld-2.23.so 2016-08-01 23:51:19: minidump.cc:2105: INFO: MinidumpModule could not determine version for linux-gate.so 2016-08-01 23:51:19: minidump_processor.cc:146: INFO: Found 2 memory regions. 2016-08-01 23:51:19: minidump_processor.cc:156: INFO: Minidump 0b5b40af-53dd-9b07-41b2f6d2-7b5a27c4.dmp has CPU info, OS info, no Breakpad info, exception, module list, thread list, no dump thread, requesting thread, and no process create time 2016-08-01 23:51:19: minidump_processor.cc:195: INFO: Looking at thread 0b5b40af-53dd-9b07-41b2f6d2-7b5a27c4.dmp:0/1 id 0x354b 2016-08-01 23:51:19: minidump.cc:437: INFO: MinidumpContext: looks like AMD64 context 2016-08-01 23:51:19: minidump.cc:437: INFO: MinidumpContext: looks like AMD64 context 2016-08-01 23:51:19: source_line_resolver_base.cc:236: INFO: Loading symbols for module /media/edison/data/code/google/breakpad/src/test from memory buffer 2016-08-01 23:51:19: simple_symbol_supplier.cc:196: INFO: No symbol file at ./symbols/libc-2.23.so/E1E09D3633D8A6CA93AF17F17C83BA930/libc-2.23.so.sym 2016-08-01 23:51:19: stackwalker.cc:97: INFO: Couldn't load symbols for: /lib/x86_64-linux-gnu/libc-2.23.so|E1E09D3633D8A6CA93AF17F17C83BA930 2016-08-01 23:51:19: minidump.cc:1291: INFO: MinidumpMemoryRegion request out of range: 0x411ee8+8/0x7ffc9d0a4000+0x3000 2016-08-01 23:51:19: basic_code_modules.cc:110: INFO: No module at 0x0 2016-08-01 23:51:19: basic_code_modules.cc:110: INFO: No module at 0x7ffc9d0a49b8 2016-08-01 23:51:19: basic_code_modules.cc:110: INFO: No module at 0x100000000 2016-08-01 23:51:19: minidump_processor.cc:319: INFO: Processed 0b5b40af-53dd-9b07-41b2f6d2-7b5a27c4.dmp Operating system: Linux 0.0.0 Linux 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 CPU: amd64 family 6 model 42 stepping 7 4 CPUs GPU: UNKNOWN Crash reason: SIGSEGV Crash address: 0x0 Process uptime: not available Thread 0 (crashed) 0 test!crash [Test.cpp : 13 + 0x4] rax = 0x0000000000000000 rdx = 0x00007f1497d30780 rcx = 0x00007f1497a61a10 rbx = 0x0000000000000000 rsi = 0x0000000000796d10 rdi = 0x0000000000000001 rbp = 0x00007ffc9d0a4730 rsp = 0x00007ffc9d0a4730 r8 = 0x00007f14986e8740 r9 = 0x0000000000000000 r10 = 0x0000000000000194 r11 = 0x0000000000000246 r12 = 0x0000000000401ec0 r13 = 0x00007ffc9d0a49b0 r14 = 0x0000000000000000 r15 = 0x0000000000000000 rip = 0x0000000000401fff Found by: given as instruction pointer in context 1 test!main [Test.cpp : 20 + 0x5] rbx = 0x0000000000000000 rbp = 0x00007ffc9d0a48d0 rsp = 0x00007ffc9d0a4740 r12 = 0x0000000000401ec0 r13 = 0x00007ffc9d0a49b0 r14 = 0x0000000000000000 r15 = 0x0000000000000000 rip = 0x00000000004020d6 Found by: call frame info 2 libc-2.23.so + 0x20830 rbx = 0x0000000000000000 rbp = 0x0000000000411ee0 rsp = 0x00007ffc9d0a48e0 r12 = 0x0000000000401ec0 r13 = 0x00007ffc9d0a49b0 r14 = 0x0000000000000000 r15 = 0x0000000000000000 rip = 0x00007f149798b830 Found by: call frame info 3 test!crash [Test.cpp : 14 + 0x3] rsp = 0x00007ffc9d0a4900 rip = 0x0000000000402008 Found by: stack scanning Loaded modules: 0x00400000 - 0x00416fff test ??? (main) 0x7f1497662000 - 0x7f1497769fff libm-2.23.so ??? 0x7f149796b000 - 0x7f1497b2afff libc-2.23.so ??? (WARNING: No symbols, libc-2.23.so, E1E09D3633D8A6CA93AF17F17C83BA930) 0x7f1497d34000 - 0x7f1497d49fff libgcc_s.so.1 ??? 0x7f1497f4a000 - 0x7f14980bbfff libstdc++.so.6.0.21 ??? 0x7f14982cc000 - 0x7f14982e3fff libpthread-2.23.so ??? 0x7f14984e9000 - 0x7f149850efff ld-2.23.so ??? 0x7ffc9d13c000 - 0x7ffc9d13dfff linux-gate.so ??? 2016-08-01 23:51:19: minidump.cc:4258: INFO: Minidump closing minidump
Pay attention to 0 test!crash [Test.cpp : 13 + 0x4] which means application crashed at line 13 of file Test.cpp.
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