1 // We can't unwind stack if we're running coroutines on heap-allocated 2 // memory. Make sure we don't report these leaks. 3 4 // RUN: %clangxx_lsan %s -o %t 5 // RUN: %run %t 2>&1 6 // RUN: not %run %t foo 2>&1 | FileCheck %s 7 8 #include <stdio.h> 9 #if defined(__APPLE__) 10 // Note: ucontext.h is deprecated on OSX, so this test may stop working 11 // someday. We define _XOPEN_SOURCE to keep using ucontext.h for now. 12 #define _XOPEN_SOURCE 1 13 #endif 14 #include <ucontext.h> 15 #include <unistd.h> 16 17 const int kStackSize = 1 << 20; 18 19 void Child() { 20 int child_stack; 21 printf("Child: %p\n", &child_stack); 22 int *leaked = new int[666]; 23 } 24 25 int main(int argc, char *argv[]) { 26 char stack_memory[kStackSize + 1]; 27 char *heap_memory = new char[kStackSize + 1]; 28 char *child_stack = (argc > 1) ? stack_memory : heap_memory; 29 30 printf("Child stack: %p\n", child_stack); 31 ucontext_t orig_context; 32 ucontext_t child_context; 33 getcontext(&child_context); 34 child_context.uc_stack.ss_sp = child_stack; 35 child_context.uc_stack.ss_size = kStackSize / 2; 36 child_context.uc_link = &orig_context; 37 makecontext(&child_context, Child, 0); 38 if (swapcontext(&orig_context, &child_context) < 0) { 39 perror("swapcontext"); 40 return 1; 41 } 42 43 delete[] heap_memory; 44 return 0; 45 } 46 47 // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s) 48
