// 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); }