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comparison: config/makefiles/xpidl/Makefile.in
config/makefiles/xpidl/Makefile.in
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| 1 # This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 # License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 # file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 4 | |
| 5 STANDALONE_MAKEFILE := 1 | |
| 6 | |
| 7 include $(topsrcdir)/config/rules.mk | |
| 8 | |
| 9 # Building XPIDLs effectively consists of two steps: | |
| 10 # | |
| 11 # 1) Staging all .idl files to a common directory. | |
| 12 # 2) Doing everything with the .idl files. | |
| 13 # | |
| 14 # Each .idl file is processed into a .h file and typelib information. | |
| 15 # The .h file shares the same stem as the input file and is installed | |
| 16 # in the common headers include directory. | |
| 17 # | |
| 18 # XPIDL files are logically grouped together by modules. The typelib | |
| 19 # information for all XPIDLs in the same module is linked together into | |
| 20 # an .xpt file having the name of the module. | |
| 21 # | |
| 22 # As an optimization to reduce overall CPU usage, we process all .idl | |
| 23 # belonging to a module with a single command invocation. This prevents | |
| 24 # redundant parsing of .idl files and significantly reduces CPU cycles. | |
| 25 # | |
| 26 # Future improvement: Headers are currently written to a local directory then | |
| 27 # installed in the distribution directory. It is preferable to write headers | |
| 28 # directly into the distribution directory. However, PGO builds remove the dist | |
| 29 # directory via rm -rf (with no regards to manifests). Since the cost of | |
| 30 # processing XPIDL files is not trivial, it is preferrable to cache the headers | |
| 31 # and reinstall them rather than regenerate them. Ideally the dist pruning is | |
| 32 # performed with manifests. At that time we can write headers directly to the | |
| 33 # dist directory. | |
| 34 | |
| 35 # For dependency files. | |
| 36 idl_deps_dir := .deps | |
| 37 | |
| 38 # Where we put our final, linked .xpt files. | |
| 39 idl_xpt_dir := xpt | |
| 40 | |
| 41 dist_idl_dir := $(DIST)/idl | |
| 42 dist_include_dir := $(DIST)/include | |
| 43 process_py := $(topsrcdir)/python/mozbuild/mozbuild/action/xpidl-process.py | |
| 44 | |
| 45 # TODO we should use py_action, but that would require extra directories to be | |
| 46 # in the virtualenv. | |
| 47 idlprocess := $(PYTHON_PATH) $(PLY_INCLUDE) -I$(IDL_PARSER_DIR) -I$(IDL_PARSER_CACHE_DIR) \ | |
| 48 $(process_py) --cache-dir $(IDL_PARSER_CACHE_DIR) $(dist_idl_dir) \ | |
| 49 $(dist_include_dir) $(idl_xpt_dir) $(idl_deps_dir) | |
| 50 | |
| 51 ifdef LIBXUL_SDK | |
| 52 idlprocess += -I$(LIBXUL_SDK)/idl | |
| 53 endif | |
| 54 | |
| 55 xpidl_modules := @xpidl_modules@ | |
| 56 | |
| 57 @xpidl_rules@ | |
| 58 | |
| 59 linked_xpt_files := $(addprefix $(idl_xpt_dir)/,$(addsuffix .xpt,$(xpidl_modules))) | |
| 60 depends_files := $(foreach root,$(xpidl_modules),$(idl_deps_dir)/$(root).pp) | |
| 61 | |
| 62 GARBAGE += $(linked_xpt_files) $(depends_files) | |
| 63 | |
| 64 xpidl:: $(linked_xpt_files) | |
| 65 | |
| 66 $(linked_xpt_files): $(process_py) $(call mkdir_deps,$(idl_deps_dir) $(dist_include_dir) $(idl_xpt_dir)) | |
| 67 | |
| 68 $(call include_deps,$(depends_files)) | |
| 69 | |
| 70 .PHONY: xpidl |
