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 #include <ucontext.h> 10 #include <unistd.h> 11 12 const int kStackSize = 1 << 20; 13 14 void Child() { 15 int child_stack; 16 printf("Child: %p\n", &child_stack); 17 int *leaked = new int[666]; 18 } 19 20 int main(int argc, char *argv[]) { 21 char stack_memory[kStackSize + 1]; 22 char *heap_memory = new char[kStackSize + 1]; 23 char *child_stack = (argc > 1) ? stack_memory : heap_memory; 24 25 printf("Child stack: %p\n", child_stack); 26 ucontext_t orig_context; 27 ucontext_t child_context; 28 getcontext(&child_context); 29 child_context.uc_stack.ss_sp = child_stack; 30 child_context.uc_stack.ss_size = kStackSize / 2; 31 child_context.uc_link = &orig_context; 32 makecontext(&child_context, Child, 0); 33 if (swapcontext(&orig_context, &child_context) < 0) { 34 perror("swapcontext"); 35 return 1; 36 } 37 38 delete[] heap_memory; 39 return 0; 40 } 41 42 // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s) 43
