File: sanitizer_coverage_stack_depth.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (30 lines) | stat: -rw-r--r-- 784 bytes parent folder | download | duplicates (29) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
// Tests -fsanitize-coverage=stack-depth
//
// RUN: %clangxx -O0 -std=c++11 -fsanitize-coverage=stack-depth %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not Assertion{{.*}}failed
// RUN: %clangxx -O0 -std=c++11 -fsanitize-coverage=trace-pc-guard,stack-depth \
// RUN:     %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not Assertion{{.*}}failed

#include <cstdint>
#include <cstdio>
#include <cassert>

thread_local uintptr_t __sancov_lowest_stack;
uintptr_t last_stack;

void foo(int recurse) {
  assert(__sancov_lowest_stack < last_stack);
  last_stack = __sancov_lowest_stack;
  if (recurse <= 0) return;
  foo(recurse - 1);
}

int main() {
  last_stack = __sancov_lowest_stack;
  foo(100);
  printf("Success!\n");
  return 0;
}

// CHECK: Success!