👻 Reland of Merge android's use_gold settings with the main use_gold GN arg logic

build/config/gcc/BUILD.gn

Index: build/config/gcc/BUILD.gn
diff --git a/build/config/gcc/BUILD.gn b/build/config/gcc/BUILD.gn
index 17414467e76ee9a906d7e9bf4d1789933c9128c7..62eec11904ac93b8cf26f75e76796c0881559dcd 100644
--- a/build/config/gcc/BUILD.gn
+++ b/build/config/gcc/BUILD.gn
@@ -2,7 +2,9 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
+import("//build/config/sysroot.gni")
 import("//build/toolchain/toolchain.gni")
 
 # This config causes functions not to be automatically exported from shared
@@ -69,8 +71,9 @@ config("rpath_for_built_shared_libraries") {
 
 # Settings for executables.
 config("executable_ldconfig") {
+  ldflags = []
   if (is_android) {
-    ldflags = [
+    ldflags += [
       "-Bdynamic",
       "-Wl,-z,nocopyreloc",
     ]
@@ -80,19 +83,26 @@ config("executable_ldconfig") {
     if (is_component_build || using_sanitizer) {
       configs = [ ":rpath_for_built_shared_libraries" ]
     }
+    if (current_cpu == "mipsel") {
+      ldflags += [ "-pie" ]
+    }
+  }
 
+  if (!is_android || !use_gold) {
     # Find the path containing shared libraries for this toolchain
     # relative to the build directory. ${root_out_dir} will be a
     # subdirectory of ${root_build_dir} when cross compiling.
-    rebased_out_dir = rebase_path(root_out_dir, root_build_dir)
+    _rpath_link = rebase_path(root_out_dir, root_build_dir)
     if (shlib_subdir != ".") {
-      rpath_link = "${rebased_out_dir}/${shlib_subdir}"
-    } else {
-      rpath_link = rebased_out_dir
+      _rpath_link += "/$shlib_subdir"
+    }
+    if (is_android) {
+      _rebased_sysroot = rebase_path(sysroot, root_build_dir)
+      _rpath_link += ":$_rebased_sysroot/usr/lib"
     }
 
-    ldflags = [
-      "-Wl,-rpath-link=${rpath_link}",
+    ldflags += [
+      "-Wl,-rpath-link=$_rpath_link",
 
       # TODO(GYP): Do we need a check on the binutils version here?
       #
@@ -100,9 +110,6 @@ config("executable_ldconfig") {
       # and the new DT_RUNPATH doesn't work without --no-as-needed flag.
       "-Wl,--disable-new-dtags",
     ]
-    if (current_cpu == "mipsel") {
-      ldflags += [ "-pie" ]
-    }
   }
 }