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