derek.holloway
7502bf64a4
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54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// RUN: %clangxx -fsanitize=realtime %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx %s -fsanitize=realtime -o - -S -emit-llvm | FileCheck %s --check-prefix=CHECK-ENABLED-IR
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// RUN: %clangxx %s -o - -S -emit-llvm | FileCheck %s --check-prefix=CHECK-DISABLED-IR
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// UNSUPPORTED: ios
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#include <stdio.h>
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#include <stdlib.h>
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#include "sanitizer/rtsan_interface.h"
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void violation() [[clang::nonblocking]] {
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void *ptr;
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{
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__rtsan::ScopedDisabler disabler{};
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ptr = malloc(2);
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fprintf(stderr, "Allocated pointer %p in disabled context\n", ptr);
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}
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// ensure nested disablers don't interfere with one another
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{
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void *ptr2;
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__rtsan::ScopedDisabler disabler{};
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{
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__rtsan::ScopedDisabler disabler2{};
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ptr2 = malloc(2);
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fprintf(stderr, "Allocated second pointer %p in disabled context\n",
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ptr2);
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}
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free(ptr2);
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fprintf(stderr, "Free'd second pointer in disabled context\n");
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}
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free(ptr);
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}
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int main() {
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violation();
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return 0;
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// CHECK: Allocated pointer {{.*}} in disabled context
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// CHECK: Allocated second pointer {{.*}} in disabled context
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// CHECK: Free'd second pointer in disabled context
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// CHECK: ==ERROR: RealtimeSanitizer: unsafe-library-call
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// CHECK-NOT: {{.*malloc*}}
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// CHECK-NEXT: {{.*free.*}}
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}
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// CHECK-ENABLED-IR: {{.*@__rtsan_disable.*}}
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// CHECK-ENABLED-IR: {{.*@__rtsan_enable.*}}
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// CHECK-DISABLED-IR-NOT: {{.*__rtsan_disable.*}}
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// CHECK-DISABLED-IR-NOT: {{.*__rtsan_enable.*}}
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