Process: a.out [21606] Path: /private/tmp/a.out Identifier: a.out Version: 0 Code Type: X86-64 (Native) Parent Process: fish [88883] User ID: 501 Date/Time: 2020-11-11 14:47:34.600 -0800 OS Version: macOS 11.0.1 Report Version: 12 Bridge OS Version: redacted Anonymous UUID: DCEF35CB-68D5-F524-FF13-060901F52EA8 Time Awake Since Boot: 400000 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Termination Signal: Segmentation fault: 11 Termination Reason: Namespace SIGNAL, Code 0xb Terminating Process: exc handler [21606] Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 a.out @foo@ foo + 16 (test.c:3) 1 a.out @bar@ 2 a.out @main@ main + 20 (test.c:8) 3 libdyld.dylib 0x1000000 start + 1 Thread State rax: 0x0000000000000000 rbx: 0x0000000000000000 rcx: 0x00007ffee42d81d0 rdx: 0x00007ffee42d8080 rdi: 0x0000000000000001 rsi: 0x00007ffee42d8070 rbp: 0x00007ffee42d8020 rsp: 0x00007ffee42d8020 r8: 0x0000000000000000 r9: 0x0000000000000000 r10: 0x0000000000000000 r11: 0x0000000000000000 r12: 0x0000000000000000 r13: 0x0000000000000000 r14: 0x0000000000000000 r15: 0x0000000000000000 rip: 0x000000010b92af70 rfl: 0x0000000000010202 cr2: 0x0000000000000000 Logical CPU: 2 Error Code: 0x00000006 (no mapping for user data write) Trap Number: 14 Binary Images: 0x100000000 - 0x200000000 +a.out (0) <@UUID@> @EXEC@ 0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???