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: %env_lsan_opts= %run %t 2>&1 6 // RUN: %env_lsan_opts= not %run %t foo 2>&1 | FileCheck %s 7 // Missing 'getcontext' and 'makecontext' on Android. 8 // UNSUPPORTED: target={{(arm|aarch64|loongarch64|powerpc64).*}},android 9 10 #include "sanitizer_common/sanitizer_ucontext.h" 11 #include <stdio.h> 12 #include <unistd.h> 13 14 const int kStackSize = 1 << 20; 15 Child()16void Child() { 17 int child_stack; 18 printf("Child: %p\n", &child_stack); 19 int *leaked = new int[666]; 20 } 21 main(int argc,char * argv[])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