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// We can't unwind stack if we're running coroutines on heap-allocated
// memory. Make sure we don't report these leaks.
// RUN: %clangxx_lsan %s -o %t
// RUN: %run %t 2>&1
// RUN: not %run %t foo 2>&1 | FileCheck %s
#include <stdio.h>
#if defined(__APPLE__)
// Note: ucontext.h is deprecated on OSX, so this test may stop working
// someday. We define _XOPEN_SOURCE to keep using ucontext.h for now.
#define _XOPEN_SOURCE 1
#endif
#include <ucontext.h>
#include <unistd.h>
const int kStackSize = 1 << 20;
void Child() {
int child_stack;
printf("Child: %p\n", &child_stack);
int *leaked = new int[666];
}
int main(int argc, char *argv[]) {
char stack_memory[kStackSize + 1];
char *heap_memory = new char[kStackSize + 1];
char *child_stack = (argc > 1) ? stack_memory : heap_memory;
printf("Child stack: %p\n", child_stack);
ucontext_t orig_context;
ucontext_t child_context;
getcontext(&child_context);
child_context.uc_stack.ss_sp = child_stack;
child_context.uc_stack.ss_size = kStackSize / 2;
child_context.uc_link = &orig_context;
makecontext(&child_context, Child, 0);
if (swapcontext(&orig_context, &child_context) < 0) {
perror("swapcontext");
return 1;
}
delete[] heap_memory;
return 0;
}
// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s)
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