LibSegFault

Implementation of /lib/libSegFault.so with Boost.stracktrace

$ ./crash

crash: /crash.cpp:5: void foo(int*): Assertion `p' failed.
zsh: abort (core dumped)  ./crash

$ LD_PRELOAD=./libsegfault.so ./crash

crash: /crash.cpp:5: void foo(int*): Assertion `p' failed.
 0# (anonymous namespace)::segabort_handler(int) at /libsegfault.cpp:39
 1# 0x00007FCCEA604E00 in /usr/lib/libc.so.6
 2# raise in /usr/lib/libc.so.6
 3# __GI_abort in /usr/lib/libc.so.6
 4# _nl_load_domain.cold.0 in /usr/lib/libc.so.6
 5# 0x00007FCCEA5FD396 in /usr/lib/libc.so.6
 6# foo(int*) at /crash.cpp:6
 7# main at /crash.cpp:12
 8# __libc_start_main in /usr/lib/libc.so.6
 9# _start in ./crash
zsh: abort (core dumped)  LD_PRELOAD=./libsegfault.so ./crash

$ SEGFAULT_SIGNALS=segv LD_PRELOAD=./libsegfault.so ./crash

crash: ../../projects/sigabort/crash.cpp:5: void foo(int*): Assertion `p' failed.
zsh: abort (core dumped)  SEGFAULT_SIGNALS=segv LD_PRELOAD=./libsegfault.so ./crash

stacktrace.sh

$ ./stacktrace.sh prog args...

Wrapper for use libsegfault with libasan.

SEGFAULT_SIGNALS

Comma-separated values:

• segv
• abrt
• bus
• ill
• fpe
• trap
• sys
• all

Build

meson build

Disable libbacktrace

meson build -Dnobacktrace=true

Configure libbacktrace

meson build -Dbacktrace-include='"my/backtrace.h"' -Dbacktrace-library-path=my-backtrace-dir