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[DeviceSanitizer] Support nullpointer detection #1914

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merged 6 commits into from
Sep 18, 2024
Merged

[DeviceSanitizer] Support nullpointer detection #1914

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6877561
nullpointer detection
AllanZyne Aug 1, 2024
b363b5b
Merge branch 'llvm' into review/yang/dsan_nullpointer
AllanZyne Aug 1, 2024
345e012
Merge branch 'llvm' into review/yang/dsan_nullpointer
AllanZyne Aug 22, 2024
8d9a58a
Merge branch 'llvm' into review/yang/dsan_nullpointer
AllanZyne Aug 23, 2024
4b19ddc
Merge branch 'llvm' into review/yang/dsan_nullpointer
AllanZyne Sep 10, 2024
3dbb7a2
Merge branch 'llvm' into review/yang/dsan_nullpointer
AllanZyne Sep 13, 2024
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12 changes: 12 additions & 0 deletions source/loader/layers/sanitizer/asan_interceptor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -438,6 +438,18 @@ ur_result_t DeviceInfo::allocShadowMemory(ur_context_handle_t Context) {
}
getContext()->logger.info("ShadowMemory(Global): {} - {}",
(void *)ShadowOffset, (void *)ShadowOffsetEnd);

// Set shadow memory for null pointer
ManagedQueue Queue(Context, Handle);

auto DI = getContext()->interceptor->getDeviceInfo(Handle);
auto URes =
enqueueMemSetShadow(Context, DI, Queue, 0, 1, kNullPointerRedzoneMagic);
if (URes != UR_RESULT_SUCCESS) {
getContext()->logger.error("enqueueMemSetShadow(NullPointerRZ): {}",
URes);
return URes;
}
return UR_RESULT_SUCCESS;
}

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