| 1 | // We can't unwind stack if we're running coroutines on heap-allocated |
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| 2 | // memory. Make sure we don't report these leaks. |
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| 3 | |
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| 4 | // RUN: %clangxx_lsan %s -o %t |
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| 5 | // RUN: %env_lsan_opts= %run %t 2>&1 |
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| 6 | // RUN: %env_lsan_opts= not %run %t foo 2>&1 | FileCheck %s |
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| 7 | // Missing 'getcontext' and 'makecontext' on Android. |
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| 8 | // UNSUPPORTED: target={{(arm|aarch64|loongarch64|powerpc64).*}},android |
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| 9 | |
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| 10 | #include "sanitizer_common/sanitizer_ucontext.h" |
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| 11 | #include <stdio.h> |
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| 12 | #include <unistd.h> |
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| 13 | |
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| 14 | const int kStackSize = 1 << 20; |
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| 15 | |
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| 16 | void Child() { |
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| 17 | int child_stack; |
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| 18 | printf(format: "Child: %p\n" , &child_stack); |
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| 19 | int *leaked = new int[666]; |
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| 20 | } |
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| 21 | |
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| 22 | int main(int argc, char *argv[]) { |
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| 23 | char stack_memory[kStackSize + 1] __attribute__((aligned(16))); |
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| 24 | char *heap_memory = new char[kStackSize + 1]; |
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| 25 | char *child_stack = (argc > 1) ? stack_memory : heap_memory; |
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| 26 | |
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| 27 | printf(format: "Child stack: %p\n" , child_stack); |
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| 28 | ucontext_t orig_context; |
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| 29 | ucontext_t child_context; |
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| 30 | getcontext(&child_context); |
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| 31 | child_context.uc_stack.ss_sp = child_stack; |
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| 32 | child_context.uc_stack.ss_size = kStackSize / 2; |
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| 33 | child_context.uc_link = &orig_context; |
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| 34 | makecontext(&child_context, Child, 0); |
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| 35 | if (swapcontext(&orig_context, &child_context) < 0) { |
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| 36 | perror(s: "swapcontext" ); |
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| 37 | return 1; |
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| 38 | } |
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| 39 | |
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| 40 | delete[] heap_memory; |
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| 41 | return 0; |
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| 42 | } |
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| 43 | |
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| 44 | // CHECK: SUMMARY: {{.*}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s) |
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| 45 | |
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