[lld] [LLD][COFF] Update nodefaultlibs after updating search paths (PR #128813)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lld-coff

Author: None (A2uria)

<details>
<summary>Changes</summary>

Fix #<!-- -->107346

---
Full diff: https://github.com/llvm/llvm-project/pull/128813.diff


1 Files Affected:

- (modified) lld/COFF/Driver.cpp (+7) 


``````````diff
diff --git a/lld/COFF/Driver.cpp b/lld/COFF/Driver.cpp
index 1589323073c09..086ec83cc5206 100644
--- a/lld/COFF/Driver.cpp
+++ b/lld/COFF/Driver.cpp
@@ -786,6 +786,13 @@ void LinkerDriver::addWinSysRootLibSearchPaths() {
                                       path))
       searchPaths.push_back(saver().save(path));
   }
+
+  // Libraries specified by `/nodefaultlib:` may not be found in incomplete
+  // search paths before lld infers a machine type from input files.
+  std::set<std::string> noDefaultLibs;
+  for (const std::string &path : ctx.config.noDefaultLibs)
+    noDefaultLibs.insert(findLib(path).lower());
+  ctx.config.noDefaultLibs = noDefaultLibs;
 }
 
 // Parses LIB environment which contains a list of search paths.

``````````

</details>


https://github.com/llvm/llvm-project/pull/128813