compiler-rt/test/lsan/TestCases/print_suppressions.cpp

   1 // Print matched suppressions only if print_suppressions=1 AND at least one is
   2 // matched. Default is print_suppressions=true.
   3 // RUN: %clangxx_lsan %s -o %t
   4 // RUN: %env_lsan_opts=use_registers=0:use_stacks=0:print_suppressions=0 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-dont-print
   5 // RUN: %env_lsan_opts=use_registers=0:use_stacks=0 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-dont-print
   6 // RUN: %env_lsan_opts=use_registers=0:use_stacks=0:print_suppressions=0 %run %t foo 2>&1 | FileCheck %s --check-prefix=CHECK-dont-print
   7 // RUN: %env_lsan_opts=use_registers=0:use_stacks=0 %run %t foo 2>&1 | FileCheck %s --check-prefix=CHECK-print
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 #include "sanitizer/lsan_interface.h"
  13
  14 extern "C"
  15 const char *__lsan_default_suppressions() {
  16   return "leak:*LSanTestLeakingFunc*";
  17 }
  18
  19 void LSanTestLeakingFunc() {
  20   void *p = malloc(666);
  21   fprintf(stderr, "Test alloc: %p.\n", p);
  22 }
  23
  24 int main(int argc, char **argv) {
  25   printf("print for nonempty output\n");
  26   if (argc > 1)
  27     LSanTestLeakingFunc();
  28   return 0;
  29 }
  30 // CHECK-print: Suppressions used:
  31 // CHECK-print: 1 666 *LSanTestLeakingFunc*
  32 // CHECK-dont-print-NOT: Suppressions used: