061426df57
Fix a brown paper bag error made by me in D129418. I didn't set ASAN_INTERCEPT_VFORK correctly for loongarch64, but created an all-zero object for __interception::real_vfork. This caused anything calling vfork() to die instantly. Fix this issue by setting ASAN_INTERCEPT_VFORK and remove the bad all-zero definition. Other ports have an all-zero common definition but we don't need it at least for now. And, enable ASAN vfork test for loongarch64 to prevent regression in the future. Differential Revision: https://reviews.llvm.org/D137160
32 lines
792 B
C++
32 lines
792 B
C++
// https://github.com/google/sanitizers/issues/925
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// RUN: %clang_asan -O0 %s -o %t && %run %t 2>&1
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// REQUIRES: aarch64-target-arch || x86_64-target-arch || i386-target-arch || arm-target-arch || riscv64-target-arch || loongarch64-target-arch
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <sanitizer/asan_interface.h>
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__attribute__((noinline, no_sanitize("address"))) void child() {
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alignas(8) char x[100000];
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__asan_poison_memory_region(x, sizeof(x));
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_exit(0);
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}
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__attribute__((noinline, no_sanitize("address"))) void parent() {
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alignas(8) char x[100000];
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assert(__asan_address_is_poisoned(x + 5000) == 0);
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}
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int main(int argc, char **argv) {
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if (vfork())
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parent();
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else
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child();
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return 0;
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}
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