[gn build][Bazel] Port D127384

[abrachet]

This is a preemptive change for when D127384 lands

[thakis]

Thanks! I did the gn part earlier today, but it should merge cleanly.

[thakis]

llvm/utils/gn/build/driver_executable.gni

9

hold up, it's llvm-driver-template.cpp.in. now, with leading "llvm-", right? (Also below.)

[abrachet]

This is no longer needed both builds have been ported already

llvm/utils/gn/build/driver_executable.gni

9

Indeed it was. I didn't actually try the patch locally, I just trusted myself to be able to read a file name properly :)

llvm/utils/gn/build/driver_executable.gni

 import("//llvm/utils/gn/build/write_cmake_config.gni")
 
 # Corresponds to GENERATE_DRIVER in cmake (see add_llvm_executable in
 # llvm/cmake/modules/AddLLVM.cmake).
 template("driver_executable") {
   tool_name = string_replace(target_name, "-", "_")
 
   write_cmake_config("${tool_name}-driver") {
-    input = "//llvm/cmake/driver-template.cpp.in"
+    input = "//llvm/cmake/modules/driver-template.cpp.in"
     output = "$target_gen_dir/${tool_name}-driver.cpp"
     values = [ "TOOL_NAME=$tool_name" ]
   }
 
   executable(target_name) {
     forward_variables_from(invoker, "*")
     deps += [ ":${tool_name}-driver" ]
     sources += [ "$target_gen_dir/${tool_name}-driver.cpp" ]
   }
 }
 
 set_defaults("driver_executable") {
   configs = shared_binary_target_configs
 }

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

deps = [
         ":parse",
         "//llvm:Core",
         "//llvm:Support",
     ],
 )
 
 template_rule(
     name = "clang_main",
-    src = "//llvm:cmake/driver-template.cpp.in",
+    src = "//llvm:cmake/modules/driver-template.cpp.in",
     out = "clang_main.cpp",
     substitutions = {
         "@TOOL_NAME@": "clang"
     },
 )
 
 cc_library(
     name = "clang-driver",

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

gentbl(
     )],
     tblgen = ":llvm-tblgen",
     td_file = "tools/dsymutil/Options.td",
     td_srcs = ["include/llvm/Option/OptParser.td"],
 )
 
 template_rule(
     name = "dsymutil_main",
-    src = "cmake/driver-template.cpp.in",
+    src = "cmake/modules/driver-template.cpp.in",
     out = "dsymutil_main.cpp",
     substitutions = {
         "@TOOL_NAME@": "dsymutil"
     },
 )
 
 cc_binary(
     name = "dsymutil",
deps = [
         ":OrcJIT",
         ":Support",
         ":config",
     ],
 )
 
 template_rule(
     name = "ar_main",
-    src = "cmake/driver-template.cpp.in",
+    src = "cmake/modules/driver-template.cpp.in",
     out = "ar_main.cpp",
     substitutions = {
         "@TOOL_NAME@": "llvm_ar"
     },
 )
 
 cc_binary(
     name = "llvm-ar",
gentbl(
     )],
     tblgen = ":llvm-tblgen",
     td_file = "tools/llvm-cxxfilt/Opts.td",
     td_srcs = ["include/llvm/Option/OptParser.td"],
 )
 
 template_rule(
     name = "cxxfilt_main",
-    src = "cmake/driver-template.cpp.in",
+    src = "cmake/modules/driver-template.cpp.in",
     out = "cxxfilt_main.cpp",
     substitutions = {
         "@TOOL_NAME@": "llvm_cxxfilt"
     },
 )
 
 cc_binary(
     name = "llvm-cxxfilt",
cc_binary(
     deps = [
         ":Core",
         ":Support",
     ],
 )
 
 template_rule(
     name = "objcopy_main",
-    src = "cmake/driver-template.cpp.in",
+    src = "cmake/modules/driver-template.cpp.in",
     out = "objcopy_main.cpp",
     substitutions = {
         "@TOOL_NAME@": "llvm_objcopy"
     },
 )
 
 
 cc_binary(