| // RUN: %clangxx -fsanitize=realtime %s -o %t |
| // RUN: not %run %t 2>&1 | FileCheck %s |
| // RUN: %clangxx %s -fsanitize=realtime -o - -S -emit-llvm | FileCheck %s --check-prefix=CHECK-ENABLED-IR |
| // RUN: %clangxx %s -o - -S -emit-llvm | FileCheck %s --check-prefix=CHECK-DISABLED-IR |
| // UNSUPPORTED: ios |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "sanitizer/rtsan_interface.h" |
| |
| void violation() [[clang::nonblocking]] { |
| void *ptr; |
| { |
| __rtsan::ScopedDisabler disabler{}; |
| ptr = malloc(2); |
| fprintf(stderr, "Allocated pointer %p in disabled context\n", ptr); |
| } |
| |
| // ensure nested disablers don't interfere with one another |
| { |
| void *ptr2; |
| __rtsan::ScopedDisabler disabler{}; |
| { |
| __rtsan::ScopedDisabler disabler2{}; |
| ptr2 = malloc(2); |
| fprintf(stderr, "Allocated second pointer %p in disabled context\n", |
| ptr2); |
| } |
| |
| free(ptr2); |
| fprintf(stderr, "Free'd second pointer in disabled context\n"); |
| } |
| |
| free(ptr); |
| } |
| |
| int main() { |
| violation(); |
| return 0; |
| // CHECK: Allocated pointer {{.*}} in disabled context |
| // CHECK: Allocated second pointer {{.*}} in disabled context |
| // CHECK: Free'd second pointer in disabled context |
| // CHECK: ==ERROR: RealtimeSanitizer: unsafe-library-call |
| // CHECK-NOT: {{.*malloc*}} |
| // CHECK-NEXT: {{.*free.*}} |
| } |
| |
| // CHECK-ENABLED-IR: {{.*@__rtsan_disable.*}} |
| // CHECK-ENABLED-IR: {{.*@__rtsan_enable.*}} |
| |
| // CHECK-DISABLED-IR-NOT: {{.*__rtsan_disable.*}} |
| // CHECK-DISABLED-IR-NOT: {{.*__rtsan_enable.*}} |
