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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. void bar()
  5. {
  6.     puts("entered the bar ;)");
  7.     exit(0);
  8. }
  9.  
  10. void** search(void** addr, void* value) __attribute__((noinline));
  11. void** search(void** addr, void* value)
  12. {
  13.     while(*addr != value) addr++;
  14.     return addr;
  15. }
  16.  
  17. void foo() __attribute__((noinline));
  18. void foo()
  19. {
  20.     void** p = search((void**)&p, __builtin_return_address(0));
  21.     *p = bar;
  22. }
  23.  
  24. int main()
  25. {
  26.     foo();
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 2292KB
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Standard input is empty
stdout
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entered the bar ;)
https://ideone.com/ur6Bpy
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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