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37 lines
957 B
37 lines
957 B
4 months ago
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// Test that ASan doesn't hang on stack overflow in recovery mode.
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//
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// RUN: %clang_asan -O0 -fsanitize-recover=address %s -o %t
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// RUN: %env_asan_opts=halt_on_error=false not %run %t 2>&1 | FileCheck %s
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#include <assert.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/resource.h>
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static volatile int *recurse(volatile int n, volatile int *p) {
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// CHECK: {{stack-overflow on address 0x.* \(pc 0x.* bp 0x.* sp 0x.* T.*\)}}
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if (n >= 0) *recurse(n + 1, p) += n;
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return p;
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}
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void LimitStackAndReexec(int argc, char **argv) {
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struct rlimit rlim;
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int res = getrlimit(RLIMIT_STACK, &rlim);
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assert(res == 0);
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if (rlim.rlim_cur == RLIM_INFINITY) {
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rlim.rlim_cur = 256 * 1024;
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res = setrlimit(RLIMIT_STACK, &rlim);
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assert(res == 0);
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execv(argv[0], argv);
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assert(0 && "unreachable");
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}
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}
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int main(int argc, char **argv) {
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LimitStackAndReexec(argc, argv);
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volatile int res;
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return *recurse(argc + 1, &res);
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}
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