45 lines · cpp
1// We can't unwind stack if we're running coroutines on heap-allocated2// memory. Make sure we don't report these leaks.3 4// RUN: %clangxx_lsan %s -o %t5// RUN: %env_lsan_opts= %run %t 2>&16// RUN: %env_lsan_opts= not %run %t foo 2>&1 | FileCheck %s7// Missing 'getcontext' and 'makecontext' on Android.8// UNSUPPORTED: target={{(arm|aarch64|loongarch64|powerpc64).*}},android9 10#include "sanitizer_common/sanitizer_ucontext.h"11#include <stdio.h>12#include <unistd.h>13 14const int kStackSize = 1 << 20;15 16void Child() {17 int child_stack;18 printf("Child: %p\n", &child_stack);19 int *leaked = new int[666];20}21 22int main(int argc, char *argv[]) {23 char stack_memory[kStackSize + 1] __attribute__((aligned(16)));24 char *heap_memory = new char[kStackSize + 1];25 char *child_stack = (argc > 1) ? stack_memory : heap_memory;26 27 printf("Child stack: %p\n", child_stack);28 ucontext_t orig_context;29 ucontext_t child_context;30 getcontext(&child_context);31 child_context.uc_stack.ss_sp = child_stack;32 child_context.uc_stack.ss_size = kStackSize / 2;33 child_context.uc_link = &orig_context;34 makecontext(&child_context, Child, 0);35 if (swapcontext(&orig_context, &child_context) < 0) {36 perror("swapcontext");37 return 1;38 }39 40 delete[] heap_memory;41 return 0;42}43 44// CHECK: SUMMARY: {{.*}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s)45