78f0991abd
Temporarily fix for issue #76545 Hwasan does not attach tags to @llvm.dbg.assign. It's not clear if we can attach tags to @llvm.dbg.assign. For now we just disable the path replacing llvm.dbg.declare with llvm.dbg.assign. It may reduce the quality of interactive debugging with HWASAN, but usually it's a smaller priority for sanitizers than the quality if reports.
26 lines
869 B
C
26 lines
869 B
C
// RUN: %clang_hwasan -O0 -g %s -o %t && not %run %t 2>&1 | FileCheck %s
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// RUN: %clang_hwasan -O3 -g %s -o %t && not %run %t 2>&1 | FileCheck %s
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// Stack histories currently are not recorded on x86.
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// XFAIL: target=x86_64{{.*}}
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__attribute((noinline)) void buggy() {
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char c[64];
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char *volatile p = c;
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p[65] = 0;
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}
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int main() {
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buggy();
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// CHECK: WRITE of size 1 at
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// CHECK: #0 {{.*}} in buggy{{.*}}stack-overflow.c:[[@LINE-6]]
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// CHECK: Cause: stack tag-mismatch
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// CHECK: is located in stack of thread
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// CHECK: Potentially referenced stack objects:
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// CHECK: Cause: stack-buffer-overflow
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// CHECK-NEXT: 0x{{.*}} is located 1 bytes after a 64-byte local variable c [0x{{.*}},0x{{.*}}) in buggy {{.*}}stack-overflow.c:
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// CHECK: Memory tags around the buggy address
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// CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in buggy
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}
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