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