[clang] [Clang][Driver] Link nsan runtime (PR #97364)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Alexander Shaposhnikov (alexander-shaposhnikov)

<details>
<summary>Changes</summary>

Link nsan runtime.

---
Full diff: https://github.com/llvm/llvm-project/pull/97364.diff


2 Files Affected:

- (modified) clang/lib/Driver/ToolChains/CommonArgs.cpp (+2) 
- (modified) clang/test/Driver/sanitizer-ld.c (+14) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 2a4c1369f5a73..be4d7d2cffb16 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -1469,6 +1469,8 @@ collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
     if (SanArgs.linkCXXRuntimes())
       StaticRuntimes.push_back("msan_cxx");
   }
+  if (SanArgs.needsNsanRt())
+    StaticRuntimes.push_back("nsan");
   if (!SanArgs.needsSharedRt() && SanArgs.needsTsanRt()) {
     StaticRuntimes.push_back("tsan");
     if (SanArgs.linkCXXRuntimes())
diff --git a/clang/test/Driver/sanitizer-ld.c b/clang/test/Driver/sanitizer-ld.c
index 1dc8b446d7b6d..38769ba01ed04 100644
--- a/clang/test/Driver/sanitizer-ld.c
+++ b/clang/test/Driver/sanitizer-ld.c
@@ -627,6 +627,20 @@
 // CHECK-COV-LINUX: "-lpthread"
 // CHECK-COV-LINUX: "-lresolv"
 
+// RUN: %clang -### %s 2>&1 \
+// RUN:     --target=x86_64-unknown-linux -fuse-ld=ld -fsanitize=numerical \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-NSAN-LINUX %s
+//
+// CHECK-NSAN-LINUX: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-NSAN-LINUX-NOT: "-lc"
+// CHECK-NSAN-LINUX-NOT: libclang_rt.ubsan
+// CHECK-NSAN-LINUX: libclang_rt.nsan.a"
+// CHECK-NSAN-LINUX: "-lpthread"
+// CHECK-NSAN-LINUX: "-ldl"
+// CHECK-NSAN-LINUX: "-lresolv"
+
 // CFI by itself does not link runtime libraries.
 // RUN: not %clang -fsanitize=cfi -### %s 2>&1 \
 // RUN:     --target=x86_64-unknown-linux -fuse-ld=ld -rtlib=platform \

``````````

</details>


https://github.com/llvm/llvm-project/pull/97364