During startup program terminated with signal SIG113, Real-time event 113.
gcc -g -Wall ideone_FVcyY0.c -o hello
(gdb) run Starting program: /Users/ancongcong/Downloads/hello During startup program terminated with signal SIG113, Real-time event 113.
set startup-with-shell off
ancongcongdeMacBook-Pro:Downloads ancongcong$ sudo gdb hello Password: GNU gdb (GDB) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-apple-darwin16.0.0". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from hello...Reading symbols from /Users/ancongcong/Downloads/hello.dSYM/Contents/Resources/DWARF/hello...done. done. (gdb) r Starting program: /Users/ancongcong/Downloads/hello warning: unhandled dyld version (15) the position of 1 is 1 the position of 2 is 2 the position of 3 is 3 the position of 4 is 4 the position of 5 is 5 the position of 6 is 6 the position of 7 is 7 the position of 8 is 8 the position of 9 is 9 the position of 10 is 0 Program received signal SIGSEGV, Segmentation fault. 0x0000000100000cdd in printNode (l=0x1001002f0) at ideone_FVcyY0.c:135 135 printf("the position of %d is %d\n", i, p->data); (gdb) bt #0 0x0000000100000cdd in printNode (l=0x1001002f0) at ideone_FVcyY0.c:135 #1 0x0000000100000baa in main () at ideone_FVcyY0.c:29