kleaf: Disable --rtlib=compiler-rt for host linker for cc_* rules

This resolves the error about libgcc_s not being found.

-fuse-ld=lld is kept.

This does not affect Kbuild. Kbuild continues to
use --rtlib=compiler-rt without -B / -L flags.

Test: TH
Bug: 324206397
Change-Id: I194764ef6f4820ac912426917a0dadd81de16042
Merged-In: I194764ef6f4820ac912426917a0dadd81de16042

1 files changed, 22 insertions, 2 deletions

diff --git a/kleaf/common.bzl b/kleaf/common.bzl
index a554bb6a6..9a570f799 100644
--- a/kleaf/common.bzl
+++ b/kleaf/common.bzl
@@ -127,8 +127,25 @@ def _common_cflags():
         ],
     )
 
+def _lld():
+    return feature(
+        name = "kleaf-lld",
+        enabled = False,  # Not enabled unless implied by individual os
+        flag_sets = [
+            flag_set(
+                actions = ALL_CC_LINK_ACTION_NAMES,
+                flag_groups = [
+                    flag_group(
+                        flags = [
+                            "-fuse-ld=lld",
+                        ],
+                    ),
+                ],
+            ),
+        ],
+    )
+
 def _lld_compiler_rt():
-    # From _setup_env.sh
     return feature(
         name = "kleaf-lld-compiler-rt",
         enabled = False,  # Not enabled unless implied by individual os
@@ -138,19 +155,22 @@ def _lld_compiler_rt():
                 flag_groups = [
                     flag_group(
                         flags = [
-                            "-fuse-ld=lld",
                             "--rtlib=compiler-rt",
                         ],
                     ),
                 ],
             ),
         ],
+        implies = [
+            "kleaf-lld",
+        ],
     )
 
 def _common_features(_ctx):
     """Features that applies to both android and linux toolchain."""
     return [
         _common_cflags(),
+        _lld(),
         _lld_compiler_rt(),
     ]