compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp

   1 // Test line numbers in signal handlers
   2 // Fails with debug checks: https://bugs.llvm.org/show_bug.cgi?id=46860
   3 // XFAIL: !compiler-rt-optimized && tsan
   4
   5 // RUN: %clangxx %s -o %t -O0
   6 // RUN: %env_tool_opts=handle_segv=1:print_stacktrace=1 not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK1,CHECK %s
   7 // RUN: %env_tool_opts=handle_segv=1:print_stacktrace=1 not %run %t 2 2>&1 | FileCheck --check-prefixes=CHECK2,CHECK %s
   8
   9 #include <cstdio>
  10 #include <string>
  11
  12 // CHECK: [[SAN:.*Sanitizer]]:DEADLYSIGNAL
  13 // CHECK: ERROR: [[SAN]]: SEGV on unknown address {{0x[^ ]*}} (pc
  14 int main(int argc, char **argv) {
  15   int n = atoi(argv[1]);
  16
  17   if (n == 1)
  18     *((volatile int *)0x0) = __LINE__;
  19   // CHECK1: #{{[0-9]+ .*}}main {{.*}}signal_line.cpp:[[@LINE-1]]:[[TAB:[0-9]+]]
  20   // CHECK1: SUMMARY: [[SAN]]: SEGV {{.*}}signal_line.cpp:[[@LINE-2]]:[[TAB]] in main
  21
  22   if (n == 2)
  23     // Allow for strict-alignment targets that require natural alignment.
  24     *((volatile int *)0x8) = __LINE__;
  25   // CHECK2: #{{[0-9]+ .*}}main {{.*}}signal_line.cpp:[[@LINE-1]]:[[TAB:[0-9]+]]
  26   // CHECK2: SUMMARY: [[SAN]]: SEGV {{.*}}signal_line.cpp:[[@LINE-2]]:[[TAB]] in main
  27 }