[clang] 93a6725 - [ToolChains][FreeBSD] Set default Linker to LLD for FreeBSD (#190596)

[via cfe-commits]

Author: aokblast
Date: 2026-04-14T05:10:08Z
New Revision: 93a67259cf23a555bf3905ce0f6ff349014689f0

URL: https://github.com/llvm/llvm-project/commit/93a67259cf23a555bf3905ce0f6ff349014689f0
DIFF: https://github.com/llvm/llvm-project/commit/93a67259cf23a555bf3905ce0f6ff349014689f0.diff

LOG: [ToolChains][FreeBSD] Set default Linker to LLD for FreeBSD (#190596)

When the linker is specified as ld, toolchain applies special handling
by invoking (triple)-ld instead of resolving ld via standard PATH
lookup. This causes GNU ld installed via the system package manager to
take the precedence (since (triple)-ld appears earlier in the search
path), effectively overriding ld.lld.

As a result, we set the default Linker on FreeBSD to ld.lld to indicate
we want to use lld by default.

Added: 
    

Modified: 
    clang/lib/Driver/ToolChains/FreeBSD.h
    clang/test/Driver/coverage-ld.c
    clang/test/Driver/instrprof-ld.c
    clang/test/Driver/sanitizer-ld.c

Removed: 
    


################################################################################
diff  --git a/clang/lib/Driver/ToolChains/FreeBSD.h b/clang/lib/Driver/ToolChains/FreeBSD.h
index 7d090ba682b30..60ce0bdbfc31a 100644
--- a/clang/lib/Driver/ToolChains/FreeBSD.h
+++ b/clang/lib/Driver/ToolChains/FreeBSD.h
@@ -91,6 +91,10 @@ class LLVM_LIBRARY_VISIBILITY FreeBSD : public Generic_ELF {
   // Until dtrace (via CTF) and LLDB can deal with distributed debug info,
   // FreeBSD defaults to standalone/full debug info.
   bool GetDefaultStandaloneDebug() const override { return true; }
+  // On FreeBSD, `/usr/bin/ld` is `ld.lld`, but other things may be installed in
+  // the path named `ld`  or `{triple}-ld`, which may be picked by preference if
+  // we default to `ld` here.
+  const char *getDefaultLinker() const override { return "ld.lld"; }
 
 protected:
   Tool *buildAssembler() const override;

diff  --git a/clang/test/Driver/coverage-ld.c b/clang/test/Driver/coverage-ld.c
index be1d8320ab8be..4f0f96425075f 100644
--- a/clang/test/Driver/coverage-ld.c
+++ b/clang/test/Driver/coverage-ld.c
@@ -32,7 +32,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_freebsd64_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-FREEBSD-X86-64 %s
 //
-// CHECK-FREEBSD-X86-64: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-FREEBSD-X86-64: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}"
 // CHECK-FREEBSD-X86-64: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-freebsd{{/|\\\\}}libclang_rt.profile.a"
 //
 // RUN: %clang -### %s 2>&1 \

diff  --git a/clang/test/Driver/instrprof-ld.c b/clang/test/Driver/instrprof-ld.c
index a96bba4a1e763..25b185bcd209d 100644
--- a/clang/test/Driver/instrprof-ld.c
+++ b/clang/test/Driver/instrprof-ld.c
@@ -33,7 +33,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_freebsd64_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-FREEBSD-X86-64 %s
 //
-// CHECK-FREEBSD-X86-64: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-FREEBSD-X86-64: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}"
 // CHECK-FREEBSD-X86-64: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-freebsd{{/|\\\\}}libclang_rt.profile.a"
 //
 // RUN: %clang -### %s 2>&1 \
@@ -81,7 +81,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_freebsd64_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-FREEBSD-X86-64-SHARED %s
 //
-// CHECK-FREEBSD-X86-64-SHARED: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-FREEBSD-X86-64-SHARED: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}"
 // CHECK-FREEBSD-X86-64-SHARED: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-freebsd{{/|\\\\}}libclang_rt.profile.a"
 //
 // RUN: %clang -### %s 2>&1 \

diff  --git a/clang/test/Driver/sanitizer-ld.c b/clang/test/Driver/sanitizer-ld.c
index 53a138e31b801..a292b93a5c714 100644
--- a/clang/test/Driver/sanitizer-ld.c
+++ b/clang/test/Driver/sanitizer-ld.c
@@ -115,7 +115,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_freebsd_tree \
 // RUN:   | %{filecheck} --check-prefix=CHECK-ASAN-FREEBSD
 //
-// CHECK-ASAN-FREEBSD: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-ASAN-FREEBSD: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}"
 // CHECK-ASAN-FREEBSD-NOT: "-lc"
 // CHECK-ASAN-FREEBSD: freebsd{{/|\\+}}libclang_rt.asan_static.a"
 // CHECK-ASAN-FREEBSD: freebsd{{/|\\+}}libclang_rt.asan.a"
@@ -130,7 +130,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_freebsd_tree \
 // RUN:   | %{filecheck} --check-prefix=CHECK-ASAN-FREEBSD-LDL
 //
-// CHECK-ASAN-FREEBSD-LDL: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-ASAN-FREEBSD-LDL: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}"
 // CHECK-ASAN-FREEBSD-LDL-NOT: "-ldl"
 // CHECK-ASAN-FREEBSD-LDL: "--whole-archive" "{{.*}}libclang_rt.asan_static.a" "--no-whole-archive"
 // CHECK-ASAN-FREEBSD-LDL: "--whole-archive" "{{.*}}libclang_rt.asan.a" "--no-whole-archive"