native_client_sdk/src/build_tools/make_simple.py - chromium/src - Git at Google

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.

 """This is a simplified Makefile generator for single-target gyp files.
 It was originally designed for generating readable Makefiles for the
 the NaCl examples.
 """

 # pylint: disable=C0301

 import os
 import gyp.common
 from gyp.common import GetEnvironFallback
 from gyp.generator.make import QuoteIfNecessary

 generator_default_variables = {
   'EXECUTABLE_PREFIX': '',
   'EXECUTABLE_SUFFIX': '',
   'STATIC_LIB_PREFIX': 'lib',
   'SHARED_LIB_PREFIX': 'lib',
   'STATIC_LIB_SUFFIX': '.a',
   'INTERMEDIATE_DIR': '$(BUILDDIR)/$(BUILDTYPE)/obj',
   'SHARED_INTERMEDIATE_DIR': '$(obj)/gen',
   'PRODUCT_DIR': '$(BUILDDIR)/$(BUILDTYPE)',
   'CONFIGURATION_NAME': '$(BUILDTYPE)',
 }


 generator_additional_non_configuration_keys = [
     'make_valid_configurations',
 ]


 preamble = """\
 #
 # GNU Make based build file.  For details on GNU Make see:
 #   http://www.gnu.org/software/make/manual/make.html
 #
 # This file was generated by gyp (http://code.google.com/p/gyp/)

 # Default build configuration
 BUILDTYPE = %(default_config)s

 # All possible build configurations
 BUILDTYPES = %(all_configs)s

 # Check for valid build configuration
 ifeq (,$(findstring $(BUILDTYPE),$(BUILDTYPES)))
 $(warning Possible build configurations are: $(BUILDTYPES))
 $(warning Cannot use BUILDTYPE=$(BUILDTYPE) with this Makefile.)
 all:
 else

 # Target toolchain
 CC.target ?= %(CC.target)s
 CFLAGS.target ?= $(CFLAGS)
 CXX.target ?= %(CXX.target)s
 CXXFLAGS.target ?= $(CXXFLAGS)
 LINK.target ?= %(LINK.target)s
 LDFLAGS.target ?= $(LDFLAGS)
 AR.target ?= %(AR.target)s
 ARFLAGS.target ?= %(ARFLAGS.target)s

 # Host toolchain
 CC.host ?= gcc
 CFLAGS.host ?=
 CXX.host ?= g++
 CXXFLAGS.host ?=
 LINK.host ?= g++
 LDFLAGS.host ?=
 AR.host ?= ar
 ARFLAGS.host := %(ARFLAGS.host)s

 BUILDDIR = build

 DEPFLAGS = -MMD

 DEPFILES :=

 .PHONY: all clean

 all:

 clean:
 \trm -rf $(BUILDDIR)
 """

 none_section = """
 TARGET = $(BUILDDIR)/$(BUILDTYPE)/%(target)s.stamp
 all: $(TARGET)

 INPUTS = %(inputs)s

 $(TARGET): $(INPUTS)
 """


 target_section = """
 TARGET = %(product)s
 all: $(TARGET)

 SOURCES = %(sources)s

 LIBS_%(target_name_var)s_$(BUILDTYPE) = %(libs)s

 OBJS = %(objs)s

 DEPFILES += $(OBJS:%%.o=%%.d)

 # Suffix rules, putting all outputs into build folder.
 $(BUILDDIR)/$(BUILDTYPE)/obj_%(target)s/%%.o: %%.c
 \t@mkdir -p $(dir $@)
 \t$(CC.%(toolset)s) $(CFLAGS_%(target_name_var)s_$(BUILDTYPE)) -c -o $@ $<

 $(BUILDDIR)/$(BUILDTYPE)/obj_%(target)s/%%.o: %%.cc
 \t@mkdir -p $(dir $@)
 \t$(CXX.%(toolset)s) $(CXXFLAGS_%(target_name_var)s_$(BUILDTYPE)) -c -o $@ $<
 """


 lib_section = """
 $(TARGET): $(OBJS)
 \t@mkdir -p $(dir $@)
 \t$(AR.%(toolset)s) $(ARFLAGS.%(toolset)s) $(ARFLAGS_%(target_name_var)s_$(BUILDTYPE)) $@ $^
 """


 link_section = """
 $(TARGET): $(OBJS)
 \t@mkdir -p $(dir $@)
 \t$(LINK.%(toolset)s) $(LDFLAGS_%(target_name_var)s_$(BUILDTYPE)) $(LDFLAGS.%(toolset)s) -o $@ -Wl,--start-group $^ $(LIBS_%(target_name_var)s_$(BUILDTYPE)) -Wl,--end-group
 """


 def MakeList(value_list, prefix='', quoter=QuoteIfNecessary, initial_indent=0):
   """Construct from a list of values a string that can be assigned to a make
   variable.  This uses line continuations and limits line length to 80 chars.
   """
   if not value_list:
     return ''

   value_list = [quoter(prefix + l) for l in value_list]
   lines = []
   line = ' ' * initial_indent
   for value in value_list:
     if len(line) + len(value) >= 79:
       lines.append(line)
       line = ''
     elif line:
       line += ' '
     line += value
   lines.append(line)
   rtn = ' \\\n\t'.join(lines)
   return rtn.lstrip()


 def WriteList(makefile, value_list, variable, prefix='', quoter=QuoteIfNecessary):
   values = MakeList(value_list, prefix, quoter, initial_indent=len(variable)+4)
   makefile.write("\n%s := %s\n" % (variable, values))


 def WriteConfig(makefile, name, config, target_type):
   WriteList(makefile, config.get('defines', []), 'DEFS_%s' % name, '-D')
   WriteList(makefile, config.get('cflags', []), 'CPPFLAGS_%s' % name)
   WriteList(makefile, config.get('arflags', []), 'ARFLAGS_%s' % name)
   ldflags = config.get('ldflags', [])
   if target_type == 'shared_library':
     ldflags.insert(0, '-shared')
   WriteList(makefile, ldflags, 'LDFLAGS_%s' % name)

   include_dirs = config.get('include_dirs', [])
   include_dirs = ["-I%s" % i for i in include_dirs]
   common_flags = ['$(CPPFLAGS_%s)' % name, '$(DEFS_%s)' % name, '$(DEPFLAGS)']
   common_flags += include_dirs
   WriteList(makefile, common_flags + config.get('cflags_c', []), 'CFLAGS_%s' % name)
   WriteList(makefile, common_flags + config.get('cflags_cc', []), 'CXXFLAGS_%s' % name)


 def WriteActions(makefile, actions, target_type):
   for action in actions:
     cmd = gyp.common.EncodePOSIXShellList(action['action'])
     makefile.write("\t%s\n" % cmd)
   if target_type == 'none':
     makefile.write("\ttouch $@\n")
   makefile.write("\n")


 def WriteTarget(makefile, target_info):
   valid_conf = ' '.join(target_info.get('make_valid_configurations', []))
   if valid_conf:
     makefile.write("\nifneq (,$(findstring $(BUILDTYPE),%s))\n" % valid_conf)

   makefile.write('''
 ##
 # Settings for the '%(target_name)s'
 ##
 ''' % target_info)

   sources = target_info.get('sources', [])
   exts = ['.cc', '.c', '.cxx', '.cpp']
   sources = [s for s in sources if os.path.splitext(s)[1] in exts]
   objects = [os.path.splitext(src)[0] for src in sources]
   objects = [obj + '.o' for obj in objects]

   target_name_var = target_info['target_name']
   target_name_var = target_name_var.replace('.', '_')

   for name, config in target_info['configurations'].items():
     name = target_name_var + '_' + name
     WriteConfig(makefile, name, config, target_info['type'])

   actions = target_info.get('actions', [])

   params = {
     'target': target_info['target_name'],
     'product': target_info['target_name'],
     'target_name_var': target_name_var,
   }

   if 'product_name' in target_info:
     params['product'] = target_info['product_name']

   if target_info['type'] == 'static_library':
     prefix = 'lib'
   elif target_info['type'] == 'shared_library':
     prefix = 'lib'
   else:
     prefix = ''

   if prefix and not params['product'].startswith(prefix):
     params['product'] = prefix + params['product']

   dirname = target_info.get('product_dir', '$(BUILDDIR)/$(BUILDTYPE)')
   params['product'] = os.path.join(dirname, params['product'])

   if target_info['type'] == 'none':
     params.update({
       'inputs': MakeList(actions[0]['inputs'])
     })
     makefile.write(none_section % params)
   else:
     builddir = '$(BUILDDIR)/$(BUILDTYPE)/obj_%s' % target_info['target_name']
     params.update({
       'sources': MakeList(sources),
       'libs': MakeList(target_info['libraries']),
       'objs': MakeList(["%s/%s" % (builddir, obj) for obj in objects]),
       'toolset': target_info['toolset']
     })

     makefile.write(target_section % params)
     if target_info['type'] == 'static_library':
       makefile.write(lib_section % params)
     else:
       makefile.write(link_section % params)

   WriteActions(makefile, actions, target_info['type'])
   if valid_conf:
     makefile.write('endif\n')


 def GenerateOutput(target_list, target_dicts, data, params):
   """Main entry point for this generator.

   gyp will call this function.
   """
   options = params['options']
   makefilename = os.path.join(options.toplevel_dir, 'Makefile')
   makefile = open(makefilename, 'w')

   build_file, _, _ = gyp.common.ParseQualifiedTarget(target_list[0])
   make_global_settings = data[build_file].get('make_global_settings', [])
   settings_map = dict((key, value) for key, value in make_global_settings)

   target_info = target_dicts[target_list[0]]

   params = {
     'CC.target': GetEnvironFallback(['CC_target'], '$(CC)'),
     'AR.target': GetEnvironFallback(['AR_target'], '$(AR)'),
     'ARFLAGS.target': GetEnvironFallback(['ARFLAGS_target'], 'crs'),
     'CXX.target': GetEnvironFallback(['CXX_target'], '$(CXX)'),
     'LINK.target': GetEnvironFallback(['LINK_target'], '$(LINK)') ,

     'ARFLAGS.host': GetEnvironFallback(['ARFLAGS_host'], 'crs'),

     'default_config': target_info['default_configuration'],
     'all_configs': ' '.join(target_info['configurations'].keys()),
   }

   params.update(settings_map)
   makefile.write(preamble % params)

   for target_info in target_dicts.values():
     WriteTarget(makefile, target_info)

   makefile.write('''
 # include (if they exists) the .d dependency files that the compiler generates
 -include $(DEPFILES)

 endif
 ''')

   makefile.close()
	# Copyright (c) 2013 The Chromium Authors. All rights reserved.
	# Use of this source code is governed by a BSD-style license that can be
	# found in the LICENSE file.

	"""This is a simplified Makefile generator for single-target gyp files.
	It was originally designed for generating readable Makefiles for the
	the NaCl examples.
	"""

	# pylint: disable=C0301

	import os
	import gyp.common
	from gyp.common import GetEnvironFallback
	from gyp.generator.make import QuoteIfNecessary

	generator_default_variables = {
	'EXECUTABLE_PREFIX': '',
	'EXECUTABLE_SUFFIX': '',
	'STATIC_LIB_PREFIX': 'lib',
	'SHARED_LIB_PREFIX': 'lib',
	'STATIC_LIB_SUFFIX': '.a',
	'INTERMEDIATE_DIR': '$(BUILDDIR)/$(BUILDTYPE)/obj',
	'SHARED_INTERMEDIATE_DIR': '$(obj)/gen',
	'PRODUCT_DIR': '$(BUILDDIR)/$(BUILDTYPE)',
	'CONFIGURATION_NAME': '$(BUILDTYPE)',
	}


	generator_additional_non_configuration_keys = [
	'make_valid_configurations',
	]


	preamble = """\
	#
	# GNU Make based build file. For details on GNU Make see:
	# http://www.gnu.org/software/make/manual/make.html
	#
	# This file was generated by gyp (http://code.google.com/p/gyp/)

	# Default build configuration
	BUILDTYPE = %(default_config)s

	# All possible build configurations
	BUILDTYPES = %(all_configs)s

	# Check for valid build configuration
	ifeq (,$(findstring $(BUILDTYPE),$(BUILDTYPES)))
	$(warning Possible build configurations are: $(BUILDTYPES))
	$(warning Cannot use BUILDTYPE=$(BUILDTYPE) with this Makefile.)
	all:
	else

	# Target toolchain
	CC.target ?= %(CC.target)s
	CFLAGS.target ?= $(CFLAGS)
	CXX.target ?= %(CXX.target)s
	CXXFLAGS.target ?= $(CXXFLAGS)
	LINK.target ?= %(LINK.target)s
	LDFLAGS.target ?= $(LDFLAGS)
	AR.target ?= %(AR.target)s
	ARFLAGS.target ?= %(ARFLAGS.target)s

	# Host toolchain
	CC.host ?= gcc
	CFLAGS.host ?=
	CXX.host ?= g++
	CXXFLAGS.host ?=
	LINK.host ?= g++
	LDFLAGS.host ?=
	AR.host ?= ar
	ARFLAGS.host := %(ARFLAGS.host)s

	BUILDDIR = build

	DEPFLAGS = -MMD

	DEPFILES :=

	.PHONY: all clean

	all:

	clean:
	\trm -rf $(BUILDDIR)
	"""

	none_section = """
	TARGET = $(BUILDDIR)/$(BUILDTYPE)/%(target)s.stamp
	all: $(TARGET)

	INPUTS = %(inputs)s

	$(TARGET): $(INPUTS)
	"""


	target_section = """
	TARGET = %(product)s
	all: $(TARGET)

	SOURCES = %(sources)s

	LIBS_%(target_name_var)s_$(BUILDTYPE) = %(libs)s

	OBJS = %(objs)s

	DEPFILES += $(OBJS:%%.o=%%.d)

	# Suffix rules, putting all outputs into build folder.
	$(BUILDDIR)/$(BUILDTYPE)/obj_%(target)s/%%.o: %%.c
	\t@mkdir -p $(dir $@)
	\t$(CC.%(toolset)s) $(CFLAGS_%(target_name_var)s_$(BUILDTYPE)) -c -o $@ $<

	$(BUILDDIR)/$(BUILDTYPE)/obj_%(target)s/%%.o: %%.cc
	\t@mkdir -p $(dir $@)
	\t$(CXX.%(toolset)s) $(CXXFLAGS_%(target_name_var)s_$(BUILDTYPE)) -c -o $@ $<
	"""


	lib_section = """
	$(TARGET): $(OBJS)
	\t@mkdir -p $(dir $@)
	\t$(AR.%(toolset)s) $(ARFLAGS.%(toolset)s) $(ARFLAGS_%(target_name_var)s_$(BUILDTYPE)) $@ $^
	"""


	link_section = """
	$(TARGET): $(OBJS)
	\t@mkdir -p $(dir $@)
	\t$(LINK.%(toolset)s) $(LDFLAGS_%(target_name_var)s_$(BUILDTYPE)) $(LDFLAGS.%(toolset)s) -o $@ -Wl,--start-group $^ $(LIBS_%(target_name_var)s_$(BUILDTYPE)) -Wl,--end-group
	"""


	def MakeList(value_list, prefix='', quoter=QuoteIfNecessary, initial_indent=0):
	"""Construct from a list of values a string that can be assigned to a make
	variable. This uses line continuations and limits line length to 80 chars.
	"""
	if not value_list:
	return ''

	value_list = [quoter(prefix + l) for l in value_list]
	lines = []
	line = ' ' * initial_indent
	for value in value_list:
	if len(line) + len(value) >= 79:
	lines.append(line)
	line = ''
	elif line:
	line += ' '
	line += value
	lines.append(line)
	rtn = ' \\\n\t'.join(lines)
	return rtn.lstrip()


	def WriteList(makefile, value_list, variable, prefix='', quoter=QuoteIfNecessary):
	values = MakeList(value_list, prefix, quoter, initial_indent=len(variable)+4)
	makefile.write("\n%s := %s\n" % (variable, values))


	def WriteConfig(makefile, name, config, target_type):
	WriteList(makefile, config.get('defines', []), 'DEFS_%s' % name, '-D')
	WriteList(makefile, config.get('cflags', []), 'CPPFLAGS_%s' % name)
	WriteList(makefile, config.get('arflags', []), 'ARFLAGS_%s' % name)
	ldflags = config.get('ldflags', [])
	if target_type == 'shared_library':
	ldflags.insert(0, '-shared')
	WriteList(makefile, ldflags, 'LDFLAGS_%s' % name)

	include_dirs = config.get('include_dirs', [])
	include_dirs = ["-I%s" % i for i in include_dirs]
	common_flags = ['$(CPPFLAGS_%s)' % name, '$(DEFS_%s)' % name, '$(DEPFLAGS)']
	common_flags += include_dirs
	WriteList(makefile, common_flags + config.get('cflags_c', []), 'CFLAGS_%s' % name)
	WriteList(makefile, common_flags + config.get('cflags_cc', []), 'CXXFLAGS_%s' % name)


	def WriteActions(makefile, actions, target_type):
	for action in actions:
	cmd = gyp.common.EncodePOSIXShellList(action['action'])
	makefile.write("\t%s\n" % cmd)
	if target_type == 'none':
	makefile.write("\ttouch $@\n")
	makefile.write("\n")


	def WriteTarget(makefile, target_info):
	valid_conf = ' '.join(target_info.get('make_valid_configurations', []))
	if valid_conf:
	makefile.write("\nifneq (,$(findstring $(BUILDTYPE),%s))\n" % valid_conf)

	makefile.write('''
	##
	# Settings for the '%(target_name)s'
	##
	''' % target_info)

	sources = target_info.get('sources', [])
	exts = ['.cc', '.c', '.cxx', '.cpp']
	sources = [s for s in sources if os.path.splitext(s)[1] in exts]
	objects = [os.path.splitext(src)[0] for src in sources]
	objects = [obj + '.o' for obj in objects]

	target_name_var = target_info['target_name']
	target_name_var = target_name_var.replace('.', '_')

	for name, config in target_info['configurations'].items():
	name = target_name_var + '_' + name
	WriteConfig(makefile, name, config, target_info['type'])

	actions = target_info.get('actions', [])

	params = {
	'target': target_info['target_name'],
	'product': target_info['target_name'],
	'target_name_var': target_name_var,
	}

	if 'product_name' in target_info:
	params['product'] = target_info['product_name']

	if target_info['type'] == 'static_library':
	prefix = 'lib'
	elif target_info['type'] == 'shared_library':
	prefix = 'lib'
	else:
	prefix = ''

	if prefix and not params['product'].startswith(prefix):
	params['product'] = prefix + params['product']

	dirname = target_info.get('product_dir', '$(BUILDDIR)/$(BUILDTYPE)')
	params['product'] = os.path.join(dirname, params['product'])

	if target_info['type'] == 'none':
	params.update({
	'inputs': MakeList(actions[0]['inputs'])
	})
	makefile.write(none_section % params)
	else:
	builddir = '$(BUILDDIR)/$(BUILDTYPE)/obj_%s' % target_info['target_name']
	params.update({
	'sources': MakeList(sources),
	'libs': MakeList(target_info['libraries']),
	'objs': MakeList(["%s/%s" % (builddir, obj) for obj in objects]),
	'toolset': target_info['toolset']
	})

	makefile.write(target_section % params)
	if target_info['type'] == 'static_library':
	makefile.write(lib_section % params)
	else:
	makefile.write(link_section % params)

	WriteActions(makefile, actions, target_info['type'])
	if valid_conf:
	makefile.write('endif\n')


	def GenerateOutput(target_list, target_dicts, data, params):
	"""Main entry point for this generator.

	gyp will call this function.
	"""
	options = params['options']
	makefilename = os.path.join(options.toplevel_dir, 'Makefile')
	makefile = open(makefilename, 'w')

	build_file, _, _ = gyp.common.ParseQualifiedTarget(target_list[0])
	make_global_settings = data[build_file].get('make_global_settings', [])
	settings_map = dict((key, value) for key, value in make_global_settings)

	target_info = target_dicts[target_list[0]]

	params = {
	'CC.target': GetEnvironFallback(['CC_target'], '$(CC)'),
	'AR.target': GetEnvironFallback(['AR_target'], '$(AR)'),
	'ARFLAGS.target': GetEnvironFallback(['ARFLAGS_target'], 'crs'),
	'CXX.target': GetEnvironFallback(['CXX_target'], '$(CXX)'),
	'LINK.target': GetEnvironFallback(['LINK_target'], '$(LINK)') ,

	'ARFLAGS.host': GetEnvironFallback(['ARFLAGS_host'], 'crs'),

	'default_config': target_info['default_configuration'],
	'all_configs': ' '.join(target_info['configurations'].keys()),
	}

	params.update(settings_map)
	makefile.write(preamble % params)

	for target_info in target_dicts.values():
	WriteTarget(makefile, target_info)

	makefile.write('''
	# include (if they exists) the .d dependency files that the compiler generates
	-include $(DEPFILES)

	endif
	''')

	makefile.close()