Logs SIGSEGV to a file, with stack trace data provided by libSigSegv.so (which comes with glibc). Segfaults are logged to $TMPDIR/segfault-$NAME-$timestamp.
It's effectively a re-implementation of the catchsegv.sh shell script included with eglibc.
$ ./segv test/test
$ cat $TMPDIR/segfault-*
*** Segmentation fault
Register dump:
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00007fffe8c94288 RSI: 00007fffe8c94278 RDI: 0000000000000001
RBP: 00007fffe8c94190 R8 : 00007f9179bfde80 R9 : 00007f9179e18560
R10: 00007fffe8c94020 R11: 00007f917985fdd0 R12: 0000000000400400
R13: 00007fffe8c94270 R14: 0000000000000000 R15: 0000000000000000
RSP: 00007fffe8c94190
RIP: 00000000004004fd EFLAGS: 00010246
CS: 0033 FS: 0000 GS: 0000
Trap: 0000000e Error: 00000006 OldMask: 00000000 CR2: 00000000
FPUCW: 0000037f FPUSW: 00000000 TAG: 00000000
RIP: 00000000 RDP: 00000000
ST(0) 0000 0000000000000000 ST(1) 0000 0000000000000000
ST(2) 0000 0000000000000000 ST(3) 0000 0000000000000000
ST(4) 0000 0000000000000000 ST(5) 0000 0000000000000000
ST(6) 0000 0000000000000000 ST(7) 0000 0000000000000000
mxcsr: 1f80
XMM0: 00000000000000000000000000000000 XMM1: 00000000000000000000000000000000
XMM2: 00000000000000000000000000000000 XMM3: 00000000000000000000000000000000
XMM4: 00000000000000000000000000000000 XMM5: 00000000000000000000000000000000
XMM6: 00000000000000000000000000000000 XMM7: 00000000000000000000000000000000
XMM8: 00000000000000000000000000000000 XMM9: 00000000000000000000000000000000
XMM10: 00000000000000000000000000000000 XMM11: 00000000000000000000000000000000
XMM12: 00000000000000000000000000000000 XMM13: 00000000000000000000000000000000
XMM14: 00000000000000000000000000000000 XMM15: 00000000000000000000000000000000
Backtrace:
test/test[0x4004fd]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7f917985fec5]
test/test[0x400429]
Memory map:
00400000-00401000 r-xp 00000000 fc:02 22818577 /home/riggle/gatekeeper/segv/test/test
00600000-00601000 r--p 00000000 fc:02 22818577 /home/riggle/gatekeeper/segv/test/test
00601000-00602000 rw-p 00001000 fc:02 22818577 /home/riggle/gatekeeper/segv/test/test
00ffa000-0101f000 rw-p 00000000 00:00 0 [heap]
7f9179628000-7f917963e000 r-xp 00000000 fc:01 1705503 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f917963e000-7f917983d000 ---p 00016000 fc:01 1705503 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f917983d000-7f917983e000 rw-p 00015000 fc:01 1705503 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f917983e000-7f91799f9000 r-xp 00000000 fc:01 1707495 /lib/x86_64-linux-gnu/libc-2.19.so
7f91799f9000-7f9179bf8000 ---p 001bb000 fc:01 1707495 /lib/x86_64-linux-gnu/libc-2.19.so
7f9179bf8000-7f9179bfc000 r--p 001ba000 fc:01 1707495 /lib/x86_64-linux-gnu/libc-2.19.so
7f9179bfc000-7f9179bfe000 rw-p 001be000 fc:01 1707495 /lib/x86_64-linux-gnu/libc-2.19.so
7f9179bfe000-7f9179c03000 rw-p 00000000 00:00 0
7f9179c03000-7f9179c07000 r-xp 00000000 fc:01 1707491 /lib/x86_64-linux-gnu/libSegFault.so
7f9179c07000-7f9179e06000 ---p 00004000 fc:01 1707491 /lib/x86_64-linux-gnu/libSegFault.so
7f9179e06000-7f9179e07000 r--p 00003000 fc:01 1707491 /lib/x86_64-linux-gnu/libSegFault.so
7f9179e07000-7f9179e08000 rw-p 00004000 fc:01 1707491 /lib/x86_64-linux-gnu/libSegFault.so
7f9179e08000-7f9179e2b000 r-xp 00000000 fc:01 1707489 /lib/x86_64-linux-gnu/ld-2.19.so
7f9179ff8000-7f9179ffb000 rw-p 00000000 00:00 0
7f917a028000-7f917a02a000 rw-p 00000000 00:00 0
7f917a02a000-7f917a02b000 r--p 00022000 fc:01 1707489 /lib/x86_64-linux-gnu/ld-2.19.so
7f917a02b000-7f917a02c000 rw-p 00023000 fc:01 1707489 /lib/x86_64-linux-gnu/ld-2.19.so
7f917a02c000-7f917a02d000 rw-p 00000000 00:00 0
7fffe8c75000-7fffe8c97000 rw-p 00000000 00:00 0 [stack]
7fffe8dc1000-7fffe8dc3000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]