Initial prototype of object layout generation.

Makefile

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 175 matching lines @@
 # Modifying these flags when launching v8 will enable the probing for
 # the specified values.
 # When using the simulator, this flag is implied.
 ifeq ($(armtest), on)
   GYPFLAGS += -Darm_test=on
 endif
 
 # ----------------- available targets: --------------------
 # - "dependencies": pulls in external dependencies (currently: GYP)
 # - "grokdump": rebuilds heap constants lists used by grokdump
+# - "objects": rebuilds heap object descriptions
 # - any arch listed in ARCHES (see below)
 # - any mode listed in MODES
 # - every combination <arch>.<mode>, e.g. "ia32.release"
 # - "native": current host's architecture, release mode
 # - any of the above with .check appended, e.g. "ia32.release.check"
 # - "android": cross-compile for Android/ARM
 # - "nacl" : cross-compile for Native Client (ia32 and x64)
 # - default (no target specified): build all DEFAULT_ARCHES and MODES
 # - "check": build all targets and run all tests
 # - "<arch>.clean" for any <arch> in ARCHES
@@ skipping 24 matching lines @@
                    $(addsuffix .$(mode),$(ANDROID_ARCHES)))
 NACL_BUILDS = $(foreach mode,$(MODES), \
                    $(addsuffix .$(mode),$(NACL_ARCHES)))
 # Generates corresponding test targets, e.g. "ia32.release.check".
 CHECKS = $(addsuffix .check,$(BUILDS))
 ANDROID_CHECKS = $(addsuffix .check,$(ANDROID_BUILDS))
 NACL_CHECKS = $(addsuffix .check,$(NACL_BUILDS))
 # File where previously used GYPFLAGS are stored.
 ENVFILE = $(OUTDIR)/environment
 
 .PHONY: all check clean dependencies $(ENVFILE).new native \

[Jakob Kummerow, 2013/09/03 12:20:05]

Should add objects here (and, while you're at it, grokdump)

         $(ARCHES) $(MODES) $(BUILDS) $(CHECKS) $(addsuffix .clean,$(ARCHES)) \
         $(addsuffix .check,$(MODES)) $(addsuffix .check,$(ARCHES)) \
         $(ANDROID_ARCHES) $(ANDROID_BUILDS) $(ANDROID_CHECKS) \
         must-set-ANDROID_NDK_ROOT_OR_TOOLCHAIN \
         $(NACL_ARCHES) $(NACL_BUILDS) $(NACL_CHECKS) \
         must-set-NACL_SDK_ROOT
 
 # Target definitions. "all" is the default.
 all: $(MODES)
 
@@ skipping 144 matching lines @@
 $(ENVFILE): $(ENVFILE).new
         @if test -r $(ENVFILE) && cmp $(ENVFILE).new $(ENVFILE) > /dev/null; \
             then rm $(ENVFILE).new; \
             else mv $(ENVFILE).new $(ENVFILE); fi
 
 # Stores current GYPFLAGS in a file.
 $(ENVFILE).new:
         @mkdir -p $(OUTDIR); echo "GYPFLAGS=$(GYPFLAGS)" > $(ENVFILE).new; \
             echo "CXX=$(CXX)" >> $(ENVFILE).new
 
+# Heap object descriptions.
+objects: src/objects-gen.cc src/objects-gen.h
+src/objects-gen.%: tools/objects-gen.%.mustache src/objects.layout
+        @tools/objects-generator.py $< src/objects.layout > $@
+
 # Heap constants for grokdump.
 DUMP_FILE = tools/v8heapconst.py
 grokdump: ia32.release
         @cat $(DUMP_FILE).tmpl > $(DUMP_FILE)
         @$(OUTDIR)/ia32.release/d8 --dump-heap-constants >> $(DUMP_FILE)
 
 # Dependencies.
 # Remember to keep these in sync with the DEPS file.
 dependencies:
         svn checkout --force http://gyp.googlecode.com/svn/trunk build/gyp \
             --revision 1685
         svn checkout --force \
             https://src.chromium.org/chrome/trunk/deps/third_party/icu46 \
             third_party/icu --revision 214189