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[compiler-rt][ASan] Remove alignment message in ASan error reporting #94103

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Merged
merged 2 commits into from
Aug 5, 2024
Merged

[compiler-rt][ASan] Remove alignment message in ASan error reporting #94103

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86ea51f
[compiler-rt][ASan] Remove alignment checks in ASan error reporting
Jun 1, 2024
13b2a7e
implicit-check-not
AdvenamTacet Aug 2, 2024
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4 changes: 0 additions & 4 deletions compiler-rt/lib/asan/asan_errors.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -328,8 +328,6 @@ void ErrorBadParamsToAnnotateContiguousContainer::Print() {
" new_mid : %p\n",
(void *)beg, (void *)end, (void *)old_mid, (void *)new_mid);
uptr granularity = ASAN_SHADOW_GRANULARITY;
if (!IsAligned(beg, granularity))
Report("ERROR: beg is not aligned by %zu\n", granularity);
stack->Print();
ReportErrorSummary(scariness.GetDescription(), stack);
}
Expand All @@ -348,8 +346,6 @@ void ErrorBadParamsToAnnotateDoubleEndedContiguousContainer::Print() {
(void *)old_container_end, (void *)new_container_beg,
(void *)new_container_end);
uptr granularity = ASAN_SHADOW_GRANULARITY;
if (!IsAligned(storage_beg, granularity))
Report("ERROR: storage_beg is not aligned by %zu\n", granularity);
stack->Print();
ReportErrorSummary(scariness.GetDescription(), stack);
}
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10 changes: 10 additions & 0 deletions compiler-rt/test/asan/TestCases/contiguous_container_crash.cpp
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
// RUN: %clangxx_asan -O %s -o %t
// RUN: not %run %t crash 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: not %run %t bad-bounds 2>&1 | FileCheck --check-prefix=CHECK-BAD-BOUNDS %s
// RUN: not %run %t unaligned-bad-bounds 2>&1 | FileCheck --check-prefix=CHECK-UNALIGNED-BAD-BOUNDS %s --implicit-check-not="beg is not aligned by"
// RUN: not %run %t odd-alignment 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: not %run %t odd-alignment-end 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: %env_asan_opts=detect_container_overflow=0 %run %t crash
Expand Down Expand Up @@ -35,6 +36,13 @@ void BadBounds() {
&t[0] + 50);
}

void UnalignedBadBounds() {
char t[100];
// CHECK-UNALIGNED-BAD-BOUNDS: ERROR: AddressSanitizer: bad parameters to __sanitizer_annotate_contiguous_container
__sanitizer_annotate_contiguous_container(&t[1], &t[0] + 100, &t[0] + 101,
&t[0] + 50);
}

int OddAlignment() {
int t[100];
t[60] = 0;
Expand All @@ -57,6 +65,8 @@ int main(int argc, char **argv) {
return TestCrash();
else if (!strcmp(argv[1], "bad-bounds"))
BadBounds();
else if (!strcmp(argv[1], "unaligned-bad-bounds"))
UnalignedBadBounds();
else if (!strcmp(argv[1], "odd-alignment"))
return OddAlignment();
else if (!strcmp(argv[1], "odd-alignment-end"))
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