lldb/test/API/functionalities/location-list-lookup/main.c

   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); }