1 #include <stdio.h> 2 #include <stdlib.h> 3 4 // The goal with this test is: 5 // 1. Have main() followed by foo() 6 // 2. Have the no-return call to abort() in main be the last instruction 7 // 3. Have the next instruction be the start of foo() 8 // 4. The debug info for argv uses a location list. 9 // clang at -O1 on x86_64 or arm64 has debuginfo like 10 // DW_AT_location (0x00000049: 11 // [0x0000000100003f15, 0x0000000100003f25): DW_OP_reg4 RSI 12 // [0x0000000100003f25, 0x0000000100003f5b): DW_OP_reg15 R15) 13 14 void foo(int); 15 int main(int argc, char **argv) { 16 char *file = argv[0]; 17 char f0 = file[0]; 18 printf("%c\n", f0); 19 foo(f0); 20 printf("%s %d\n", argv[0], argc); 21 abort(); /// argv is still be accessible here 22 } 23 void foo(int in) { printf("%d\n", in); } 24