[llvm-branch-commits] [lld] release/19.x: [LLD] [MinGW] Recognize the -rpath option (#102886) (PR #104843)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lld

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 69f76c782b554a004078af6909c19a11e3846415

Requested by: @<!-- -->mstorsjo

---
Full diff: https://github.com/llvm/llvm-project/pull/104843.diff


3 Files Affected:

- (modified) lld/MinGW/Driver.cpp (+3) 
- (modified) lld/MinGW/Options.td (+3) 
- (modified) lld/test/MinGW/driver.test (+6) 


``````````diff
diff --git a/lld/MinGW/Driver.cpp b/lld/MinGW/Driver.cpp
index 35fd478a21905e..c7d7b9cfca386f 100644
--- a/lld/MinGW/Driver.cpp
+++ b/lld/MinGW/Driver.cpp
@@ -448,6 +448,9 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
       add("-errorlimit:" + s);
   }
 
+  if (auto *a = args.getLastArg(OPT_rpath))
+    warn("parameter " + a->getSpelling() + " has no effect on PE/COFF targets");
+
   for (auto *a : args.filtered(OPT_mllvm))
     add("-mllvm:" + StringRef(a->getValue()));
 
diff --git a/lld/MinGW/Options.td b/lld/MinGW/Options.td
index 56f67e3dd96c42..7bd5fb80749da2 100644
--- a/lld/MinGW/Options.td
+++ b/lld/MinGW/Options.td
@@ -243,6 +243,9 @@ defm: EqNoHelp<"sysroot">;
 def: F<"sort-common">;
 def: F<"start-group">;
 
+// Ignored options, that produce warnings
+defm rpath: EqNoHelp<"rpath">;
+
 // Ignore GCC collect2 LTO plugin related options. Note that we don't support
 // GCC LTO, but GCC collect2 passes these options even in non-LTO mode.
 def: J<"plugin-opt=-fresolution=">;
diff --git a/lld/test/MinGW/driver.test b/lld/test/MinGW/driver.test
index cbccd09793c2f0..0dab66b613c774 100644
--- a/lld/test/MinGW/driver.test
+++ b/lld/test/MinGW/driver.test
@@ -446,3 +446,9 @@ RUN: ld.lld -### foo.o -m i386pep --build-id=none 2>&1 | FileCheck -check-prefix
 RUN: ld.lld -### foo.o -m i386pep -s 2>&1 | FileCheck -check-prefix=NO_BUILD_ID %s
 RUN: ld.lld -### foo.o -m i386pep -S 2>&1 | FileCheck -check-prefix=NO_BUILD_ID %s
 NO_BUILD_ID: -build-id:no
+
+RUN: ld.lld -### foo.o -m i386pep -rpath foo 2>&1 | FileCheck -check-prefix=WARN_RPATH %s
+RUN: ld.lld -### foo.o -m i386pep --rpath foo 2>&1 | FileCheck -check-prefix=WARN_RPATH %s
+RUN: ld.lld -### foo.o -m i386pep -rpath=foo 2>&1 | FileCheck -check-prefix=WARN_RPATH %s
+RUN: ld.lld -### foo.o -m i386pep --rpath=foo 2>&1 | FileCheck -check-prefix=WARN_RPATH %s
+WARN_RPATH: warning: parameter -{{-?}}rpath has no effect on PE/COFF targets

``````````

</details>


https://github.com/llvm/llvm-project/pull/104843