1 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <signal.h> 5 #include "tests/sys_mman.h" 6 sig_hdlr(int signo)7void sig_hdlr ( int signo ) { 8 printf ( "caught sig segv\n" ); exit(1); 9 } 10 main(void)11int main ( void ) { 12 char* badplace; 13 printf ( "installing sig handler\n" ); 14 signal(SIGSEGV, sig_hdlr); 15 printf ( "doing bad thing\n" ); 16 badplace = get_unmapped_page(); 17 *(int*)badplace = 0; 18 printf ( "exited normally ?!\n" ); 19 return 0; 20 } 21 22