[bazel] Add the remaining llvm-driver tools (#87302)

Author: rupprecht

utils/bazel/llvm-project-overlay/clang/BUILD.bazel

@@ -2,7 +2,6 @@
 # See https://llvm.org/LICENSE.txt for license information.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-load("@bazel_skylib//rules:expand_template.bzl", "expand_template")
 load(
     "//:vars.bzl",
     "LLVM_VERSION",
@@ -13,6 +12,7 @@ load(
 load("//:workspace_root.bzl", "workspace_root")
 load("//llvm:binary_alias.bzl", "binary_alias")
 load("//llvm:cc_plugin_library.bzl", "cc_plugin_library")
+load("//llvm:driver.bzl", "llvm_driver_cc_binary")
 load("//llvm:tblgen.bzl", "gentbl")
 
 package(
@@ -2320,20 +2320,9 @@ cc_binary(
     ],
 )
 
-expand_template(
-    name = "clang_main",
-    out = "clang-driver.cpp",
-    substitutions = {
-        "@TOOL_NAME@": "clang",
-    },
-    template = "//llvm:cmake/modules/llvm-driver-template.cpp.in",
-)
-
 cc_library(
     name = "clang-driver",
-    srcs = glob([
-        "tools/driver/*.cpp",
-    ]) + ["clang-driver.cpp"],
+    srcs = glob(["tools/driver/*.cpp"]),
     copts = [
         # Disable stack frame size checks in the driver because
         # clang::ensureStackAddressSpace allocates a large array on the stack.
@@ -2371,13 +2360,10 @@ cc_library(
     ],
 )
 
-cc_binary(
+llvm_driver_cc_binary(
     name = "clang",
-    srcs = [],
     stamp = 0,
-    deps = [
-        ":clang-driver",
-    ],
+    deps = [":clang-driver"],
 )
 
 cc_binary(
@@ -2622,19 +2608,9 @@ gentbl(
     td_srcs = ["//llvm:include/llvm/Option/OptParser.td"],
 )
 
-expand_template(
-    name = "clang-scan-deps-main",
-    out = "clang-scan-deps-driver.cpp",
-    substitutions = {
-        "@TOOL_NAME@": "clang_scan_deps",
-    },
-    template = "//llvm:cmake/modules/llvm-driver-template.cpp.in",
-)
-
-cc_binary(
-    name = "clang-scan-deps",
-    srcs = glob(["tools/clang-scan-deps/*.cpp"]) + ["clang-scan-deps-driver.cpp"],
-    stamp = 0,
+cc_library(
+    name = "clang-scan-deps-lib",
+    srcs = glob(["tools/clang-scan-deps/*.cpp"]),
     deps = [
         ":ScanDepsTableGen",
         ":driver",
@@ -2646,6 +2622,12 @@ cc_binary(
     ],
 )
 
+llvm_driver_cc_binary(
+    name = "clang-scan-deps",
+    stamp = 0,
+    deps = [":clang-scan-deps-lib"],
+)
+
 cc_library(
     name = "extract_api",
     srcs = glob([

utils/bazel/llvm-project-overlay/lld/BUILD.bazel

@@ -2,12 +2,12 @@
 # See https://llvm.org/LICENSE.txt for license information.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-load("@bazel_skylib//rules:expand_template.bzl", "expand_template")
 load(
     "//:vars.bzl",
     "LLVM_VERSION",
 )
 load("//llvm:binary_alias.bzl", "binary_alias")
+load("//llvm:driver.bzl", "llvm_driver_cc_binary")
 load("//llvm:tblgen.bzl", "gentbl")
 
 package(
@@ -282,20 +282,9 @@ cc_library(
     ],
 )
 
-expand_template(
-    name = "lld_main",
-    out = "lld-driver.cpp",
-    substitutions = {
-        "@TOOL_NAME@": "lld",
-    },
-    template = "//llvm:cmake/modules/llvm-driver-template.cpp.in",
-)
-
-cc_binary(
-    name = "lld",
-    srcs = glob([
-        "tools/lld/*.cpp",
-    ]) + ["lld-driver.cpp"],
+cc_library(
+    name = "lld-lib",
+    srcs = glob(["tools/lld/*.cpp"]),
     deps = [
         ":COFF",
         ":Common",
@@ -308,6 +297,11 @@ cc_binary(
     ],
 )
 
+llvm_driver_cc_binary(
+    name = "lld",
+    deps = [":lld-lib"],
+)
+
 # These are the required names for lld running under different environs.
 #
 # Unix/Linux require that the binary be named "ld.lld".