[gn] port 975eca0 (-gen-lldb-sbapi-dwarf-enum)

Author: nico

llvm/utils/gn/secondary/lldb/include/lldb/API/BUILD.gn

@@ -0,0 +1,11 @@
+import("//lldb/utils/TableGen/lldb_tablegen.gni")
+
+lldb_tablegen("SBLanguages") {
+  args = [ "-gen-lldb-sbapi-dwarf-enum" ]
+
+  # See discussion on https://github.com/llvm/llvm-project/pull/89981 for
+  # why this runs tblgen on a .def file.
+  td_file = "//llvm/include/llvm/BinaryFormat/Dwarf.def"
+  output_name = "SBLanguages.h"
+}
+

llvm/utils/gn/secondary/lldb/source/API/BUILD.gn

@@ -17,6 +17,7 @@ target(liblldb_type, "liblldb") {
 
   output_name = "liblldb"  # XXX lib prefix?
   configs += [ "//llvm/utils/gn/build:lldb_code" ]
+  public_deps = [ "//lldb/include/lldb/API:SBLanguages" ]
   deps = [
     "//lldb/include/lldb/Host:Config",
     "//lldb/source/Breakpoint",

llvm/utils/gn/secondary/lldb/utils/TableGen/BUILD.gn

@@ -6,6 +6,7 @@ executable("lldb-tblgen") {
   sources = [
     "LLDBOptionDefEmitter.cpp",
     "LLDBPropertyDefEmitter.cpp",
+    "LLDBSBAPIDWARFEnum.cpp",
     "LLDBTableGen.cpp",
     "LLDBTableGenUtils.cpp",
   ]