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Aaron Plattner authored
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>
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