1 #include <stdlib.h> 2 #include <stdio.h> 3 #include "pub_tool_basics.h" 4 main(void)5int main(void) 6 { 7 // The n*size multiplication overflows in this example. The only sensible 8 // thing to do is return NULL, but old versions of Valgrind didn't (they 9 // often ground to a halt trying to allocate an enormous (but not as 10 // enormous as asked-for!) block. See bug 149878. 11 int* x; 12 #if VG_WORDSIZE == 8 13 size_t szB = 0x1000000010000001ULL; 14 #else 15 size_t szB = 0x10000001UL; 16 #endif 17 x = calloc(szB, 0x10); 18 fprintf(stderr, "x = %#lx\n", (long)x); 19 return 0; 20 } 21