6dccd5bc1f
In recovery mode, when ASan detects stack overflow (say, when infinite recursion detected), it tries to continue program execution and hangs on repetitive error reports. There isn't any sense to do it, we can just bail out on stack overflow error, because the program would crash soon anyway. Differential Revision: http://reviews.llvm.org/D19958 llvm-svn: 268713
37 lines
957 B
C++
37 lines
957 B
C++
// 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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