From 2988b2c775a3be17bd8b651a3ca5da3df9ff4ce9 Mon Sep 17 00:00:00 2001
From: Jens Reidel <adrian@travitia.xyz>
Date: Tue, 10 Jun 2025 18:36:22 +0200
Subject: [PATCH] tests: Fix duplicated-path-in-error fail with musl

musl's dlopen returns a different error than glibc, which contains the
name of the file. This would cause the test to fail, since the filename
would appear twice in the output (once in the error from rustc, once in
the error message from musl). Split the expected test outputs for the
different libc implementations.

Signed-off-by: Jens Reidel <adrian@travitia.xyz>
---
 src/tools/compiletest/src/directive-list.rs                    | 1 +
 ...ath-in-error.stderr => duplicated-path-in-error.gnu.stderr} | 0
 tests/ui/codegen/duplicated-path-in-error.musl.stderr          | 2 ++
 tests/ui/codegen/duplicated-path-in-error.rs                   | 3 +++
 4 files changed, 6 insertions(+)
 rename tests/ui/codegen/{duplicated-path-in-error.stderr => duplicated-path-in-error.gnu.stderr} (100%)
 create mode 100644 tests/ui/codegen/duplicated-path-in-error.musl.stderr

diff --git a/src/tools/compiletest/src/directive-list.rs b/src/tools/compiletest/src/directive-list.rs
index 1406553c9ea7b..d19a159e31459 100644
--- a/src/tools/compiletest/src/directive-list.rs
+++ b/src/tools/compiletest/src/directive-list.rs
@@ -205,6 +205,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "only-mips64",
     "only-msp430",
     "only-msvc",
+    "only-musl",
     "only-nightly",
     "only-nvptx64",
     "only-powerpc",
diff --git a/tests/ui/codegen/duplicated-path-in-error.stderr b/tests/ui/codegen/duplicated-path-in-error.gnu.stderr
similarity index 100%
rename from tests/ui/codegen/duplicated-path-in-error.stderr
rename to tests/ui/codegen/duplicated-path-in-error.gnu.stderr
diff --git a/tests/ui/codegen/duplicated-path-in-error.musl.stderr b/tests/ui/codegen/duplicated-path-in-error.musl.stderr
new file mode 100644
index 0000000000000..2892ebffdde6a
--- /dev/null
+++ b/tests/ui/codegen/duplicated-path-in-error.musl.stderr
@@ -0,0 +1,2 @@
+error: couldn't load codegen backend /non-existing-one.so: Error loading shared library /non-existing-one.so: No such file or directory
+
diff --git a/tests/ui/codegen/duplicated-path-in-error.rs b/tests/ui/codegen/duplicated-path-in-error.rs
index a446395de208f..1852a6301b55f 100644
--- a/tests/ui/codegen/duplicated-path-in-error.rs
+++ b/tests/ui/codegen/duplicated-path-in-error.rs
@@ -1,5 +1,8 @@
+//@ revisions: musl gnu
 //@ only-linux
 //@ compile-flags: -Zcodegen-backend=/non-existing-one.so
+//@[gnu] only-gnu
+//@[musl] only-musl
 
 // This test ensures that the error of the "not found dylib" doesn't duplicate
 // the path of the dylib.