[sycl-rel] Cherry-pick sanitizer patches (#18885)

Cherry-pick commits that reached the internal branch between intel/llvm
cutoff and release branch pulldown.

Included patches:

---

[DeviceSanitizer][Coverity] die when fail to create context (#17600)

There is uncaught exception through logger creation in sanitizer layer
`context_t` 's creation. We catch exceptions here and die if the
creation of sanitizer layer context fails.

Patch-by: Wu Yingcong <[email protected]>

---

[DeviceSanitizer] Skip adding device sanitizers internal variable to bundler symbol table (#17399)

`__MsanDeviceGlobalMetadata` etc are sanitizer internal variables, and
should not be bundled to the symbol table.

Patch-by: Wu Yingcong <[email protected]>

Author: KornevNikita

clang/lib/Driver/OffloadBundler.cpp

@@ -700,7 +700,10 @@ class ObjectFileHandler final : public FileHandler {
         if (SF->isIR() &&
             (Name == "llvm.used" || Name == "llvm.compiler.used" ||
              Name == "__AsanDeviceGlobalMetadata" ||
-             Name == "__AsanKernelMetadata" || Name == "__MsanKernelMetadata"))
+             Name == "__MsanDeviceGlobalMetadata" ||
+             Name == "__TsanDeviceGlobalMetadata" ||
+             Name == "__AsanKernelMetadata" || Name == "__MsanKernelMetadata" ||
+             Name == "__TsanKernelMetadata"))
           continue;
 
         // Add symbol name with the target prefix to the buffer.

clang/test/Driver/clang-offload-bundler-skip-for-symtbl.c

@@ -0,0 +1,6 @@
+// RUN: llvm-as %s.ll -o %t-in.bc
+// RUN: %clang -c -o %t-in.o %s
+// RUN: clang-offload-bundler -type=o -targets=openmp-spir64_gen,host-x86_64-unknown-linux-gnu -input=%t-in.bc -input=%t-in.o -output=%t-out.o
+// RUN: llvm-readobj --string-dump=.tgtsym %t-out.o | FileCheck %s.ll
+
+int main() {return 0;}

clang/test/Driver/clang-offload-bundler-skip-for-symtbl.c.ll

@@ -0,0 +1,18 @@
+@__AsanKernelMetadata = global i64 0
+;CHECK-NOT: __AsanKernelMetadata
+@__MsanKernelMetadata = global i64 0
+;CHECK-NOT: __MsanKernelMetadata
+@__TsanKernelMetadata = global i64 0
+;CHECK-NOT: __TsanKernelMetadata
+@__AsanDeviceGlobalMetadata = global i64 0
+;CHECK-NOT: __AsanDeviceGlobalMetadata
+@__MsanDeviceGlobalMetadata = global i64 0
+;CHECK-NOT: __MsanDeviceGlobalMetadata
+@__TsanDeviceGlobalMetadata = global i64 0
+;CHECK-NOT: __TsanDeviceGlobalMetadata
+
+@not_skipping = global i64 0
+;CHECK: not_skipping
+
+@__another_global = global i64 0
+;CHECK: __another_global

unified-runtime/source/loader/layers/sanitizer/ur_sanitizer_layer.cpp

@@ -16,7 +16,13 @@
 #include "msan/msan_ddi.hpp"
 
 namespace ur_sanitizer_layer {
-context_t *getContext() { return context_t::get_direct(); }
+context_t *getContext() {
+  try {
+    return context_t::get_direct();
+  } catch (...) {
+    die("Failed to get sanitizer context.");
+  }
+}
 
 ///////////////////////////////////////////////////////////////////////////////
 context_t::context_t()