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8c0fe08c6b
If the stack walker finds a signal frame, record the cursor at that point and
then use unw_get_reg() to query the values of the architecture-specific
registers at the frame that triggered the signal.
Example output:
(EE) Backtrace:
(EE) 0: hw/xfree86/Xorg (OsSigHandler+0x25) [0x561458bb8195]
(EE) 1: <signal handler called>
(EE) 2: hw/xfree86/Xorg (dix_main+0x9c) [0x561458aead6c]
(EE) 3: /usr/lib/libc.so.6 (__libc_start_main+0xd5) [0x7f2d23170b25]
(EE) 4: hw/xfree86/Xorg (_start+0x2e) [0x561458aad8be]
(EE)
(EE) Registers at frame #2:
(EE) rax: 0x0
(EE) rbx: 0x561458c3ae60
(EE) rcx: 0x7f2d23328943
(EE) rdx: 0x0
(EE) rsi: 0x7ffcb6025030
(EE) rdi: 0xe
(EE) rbp: 0x0
(EE) rsp: 0x7ffcb6026430
(EE) r8: 0x0
(EE) r9: 0x0
(EE) r10: 0x8
(EE) r11: 0x246
(EE) r12: 0x561458aad890
(EE) r13: 0x0
(EE) r14: 0x0
(EE) r15: 0x0
(EE)
(EE) Segmentation fault at address 0x0
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
(cherry picked from commit
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| .. | ||
| .gitignore | ||
| access.c | ||
| auth.c | ||
| backtrace.c | ||
| busfault.c | ||
| client.c | ||
| connection.c | ||
| inputthread.c | ||
| io.c | ||
| log.c | ||
| meson.build | ||
| mitauth.c | ||
| oscolor.c | ||
| osdep.h | ||
| osinit.c | ||
| ospoll.c | ||
| ospoll.h | ||
| reallocarray.c | ||
| rpcauth.c | ||
| strcasecmp.c | ||
| strcasestr.c | ||
| strlcat.c | ||
| strlcpy.c | ||
| strndup.c | ||
| timingsafe_memcmp.c | ||
| utils.c | ||
| WaitFor.c | ||
| xdmauth.c | ||
| xdmcp.c | ||
| xprintf.c | ||
| xserver_poll.c | ||
| xsha1.c | ||
| xstrans.c | ||