blob: 872ec844c8cad76c6ee4bfd280a20ecd352c3573 [file] [log] [blame]
# Copyright (c) 2012 Google Inc. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Notes:
# This generates makefiles suitable for inclusion into the Android build system
# via an file. It is based on, the standard makefile
# generator.
# The code below generates a separate .mk file for each target, but
# all are sourced by the top-level This means that all
# variables in .mk-files clobber one another, and furthermore that any
# variables set potentially clash with other Android build system variables.
# Try to avoid setting global variables where possible.
import gyp
import gyp.common
import gyp.generator.make as make # Reuse global functions from make backend.
import os
import re
generator_default_variables = {
'OS': 'android',
'INTERMEDIATE_DIR': '$(gyp_intermediate_dir)',
'SHARED_INTERMEDIATE_DIR': '$(gyp_shared_intermediate_dir)',
'PRODUCT_DIR': '$(gyp_shared_intermediate_dir)',
'SHARED_LIB_DIR': '$(builddir)/lib.$(TOOLSET)',
'LIB_DIR': '$(obj).$(TOOLSET)',
'RULE_INPUT_ROOT': '%(INPUT_ROOT)s', # This gets expanded by Python.
'RULE_INPUT_DIRNAME': '%(INPUT_DIRNAME)s', # This gets expanded by Python.
'RULE_INPUT_EXT': '$(suffix $<)',
'RULE_INPUT_NAME': '$(notdir $<)',
# Make supports multiple toolsets
generator_supports_multiple_toolsets = True
# Generator-specific gyp specs.
generator_additional_non_configuration_keys = [
# Boolean to declare that this target does not want its name mangled.
generator_additional_path_sections = []
generator_extra_sources_for_rules = []
# "gyp_all_modules" is a concatenation of the "gyp_all_modules" targets from
# all the included sub-makefiles. This is just here to clarify.
header = """\
# This file is generated by gyp; do not edit.
android_standard_include_paths = set([
# JNI_H_INCLUDE in build/core/
# from SRC_HEADERS in build/core/
# TARGET_C_INCLUDES in build/core/combo/
# Map gyp target types to Android module classes.
'static_library': 'STATIC_LIBRARIES',
'shared_library': 'SHARED_LIBRARIES',
'executable': 'EXECUTABLES',
def IsCPPExtension(ext):
return make.COMPILABLE_EXTENSIONS.get(ext) == 'cxx'
def Sourceify(path):
"""Convert a path to its source directory form. The Android backend does not
support options.generator_output, so this function is a noop."""
return path
# Map from qualified target to path to output.
# For Android, the target of these maps is a tuple ('static', 'modulename'),
# ('dynamic', 'modulename'), or ('path', 'some/path') instead of a string,
# since we link by module.
target_outputs = {}
# Map from qualified target to any linkable output. A subset
# of target_outputs. E.g. when mybinary depends on liba, we want to
# include liba in the linker line; when otherbinary depends on
# mybinary, we just want to build mybinary first.
target_link_deps = {}
class AndroidMkWriter(object):
"""AndroidMkWriter packages up the writing of one target-specific
Its only real entry point is Write(), and is mostly used for namespacing.
def __init__(self, android_top_dir):
self.android_top_dir = android_top_dir
def Write(self, qualified_target, base_path, output_filename, spec, configs,
"""The main entry point: writes a .mk file for a single target.
qualified_target: target we're generating
base_path: path relative to source root we're building in, used to resolve
target-relative paths
output_filename: output .mk file name to write
spec, configs: gyp info
part_of_all: flag indicating this target is part of 'all'
self.fp = open(output_filename, 'w')
self.qualified_target = qualified_target
self.path = base_path = spec['target_name']
self.type = spec['type']
self.toolset = spec['toolset']
deps, link_deps = self.ComputeDeps(spec)
# Some of the generation below can add extra output, sources, or
# link dependencies. All of the out params of the functions that
# follow use names like extra_foo.
extra_outputs = []
extra_sources = []
self.android_class = MODULE_CLASSES.get(self.type, 'GYP')
self.android_module = self.ComputeAndroidModule(spec)
(self.android_stem, self.android_suffix) = self.ComputeOutputParts(spec)
self.output = self.output_binary = self.ComputeOutput(spec)
# Standard header.
self.WriteLn('include $(CLEAR_VARS)\n')
# Module class and name.
self.WriteLn('LOCAL_MODULE_CLASS := ' + self.android_class)
self.WriteLn('LOCAL_MODULE := ' + self.android_module)
# Only emit LOCAL_MODULE_STEM if it's different to LOCAL_MODULE.
# The library module classes fail if the stem is set. ComputeOutputParts
# makes sure that stem == modulename in these cases.
if self.android_stem != self.android_module:
self.WriteLn('LOCAL_MODULE_STEM := ' + self.android_stem)
self.WriteLn('LOCAL_MODULE_SUFFIX := ' + self.android_suffix)
self.WriteLn('LOCAL_MODULE_TAGS := optional')
if self.toolset == 'host':
self.WriteLn('LOCAL_IS_HOST_MODULE := true')
# Grab output directories; needed for Actions and Rules.
self.WriteLn('gyp_intermediate_dir := $(call local-intermediates-dir)')
self.WriteLn('gyp_shared_intermediate_dir := '
'$(call intermediates-dir-for,GYP,shared)')
# List files this target depends on so that actions/rules/copies/sources
# can depend on the list.
# TODO: doesn't pull in things through transitive link deps; needed?
target_dependencies = [x[1] for x in deps if x[0] == 'path']
self.WriteLn('# Make sure our deps are built first.')
self.WriteList(target_dependencies, 'GYP_TARGET_DEPENDENCIES',
# Actions must come first, since they can generate more OBJs for use below.
if 'actions' in spec:
self.WriteActions(spec['actions'], extra_sources, extra_outputs)
# Rules must be early like actions.
if 'rules' in spec:
self.WriteRules(spec['rules'], extra_sources, extra_outputs)
if 'copies' in spec:
self.WriteCopies(spec['copies'], extra_outputs)
# GYP generated outputs.
self.WriteList(extra_outputs, 'GYP_GENERATED_OUTPUTS', local_pathify=True)
# Set LOCAL_ADDITIONAL_DEPENDENCIES so that Android's build rules depend
# on both our dependency targets and our generated files.
self.WriteLn('# Make sure our deps and generated files are built first.')
# Sources.
if spec.get('sources', []) or extra_sources:
self.WriteSources(spec, configs, extra_sources)
self.WriteTarget(spec, configs, deps, link_deps, part_of_all)
# Update global list of target outputs, used in dependency tracking.
target_outputs[qualified_target] = ('path', self.output_binary)
# Update global list of link dependencies.
if self.type == 'static_library':
target_link_deps[qualified_target] = ('static', self.android_module)
elif self.type == 'shared_library':
target_link_deps[qualified_target] = ('shared', self.android_module)
return self.android_module
def WriteActions(self, actions, extra_sources, extra_outputs):
"""Write Makefile code for any 'actions' from the gyp input.
extra_sources: a list that will be filled in with newly generated source
files, if any
extra_outputs: a list that will be filled in with any outputs of these
actions (used to make other pieces dependent on these
for action in actions:
name = make.StringToMakefileVariable('%s_%s' % (self.qualified_target,
self.WriteLn('### Rules for action "%s":' % action['action_name'])
inputs = action['inputs']
outputs = action['outputs']
# Build up a list of outputs.
# Collect the output dirs we'll need.
dirs = set()
for out in outputs:
if not out.startswith('$'):
print ('WARNING: Action for target "%s" writes output to local path '
'"%s".' % (, out))
dir = os.path.split(out)[0]
if dir:
if int(action.get('process_outputs_as_sources', False)):
extra_sources += outputs
# Prepare the actual command.
command = gyp.common.EncodePOSIXShellList(action['action'])
if 'message' in action:
quiet_cmd = 'Gyp action: %s ($@)' % action['message']
quiet_cmd = 'Gyp action: %s ($@)' % name
if len(dirs) > 0:
command = 'mkdir -p %s' % ' '.join(dirs) + '; ' + command
cd_action = 'cd $(gyp_local_path)/%s; ' % self.path
command = cd_action + command
# The makefile rules are all relative to the top dir, but the gyp actions
# are defined relative to their containing dir. This replaces the gyp_*
# variables for the action rule with an absolute version so that the
# output goes in the right place.
# Only write the gyp_* rules for the "primary" output (:1);
# it's superfluous for the "extra outputs", and this avoids accidentally
# writing duplicate dummy rules for those outputs.
main_output = make.QuoteSpaces(self.LocalPathify(outputs[0]))
self.WriteLn('%s: gyp_local_path := $(LOCAL_PATH)' % main_output)
self.WriteLn('%s: gyp_intermediate_dir := '
'$(GYP_ABS_ANDROID_TOP_DIR)/$(gyp_intermediate_dir)' %
self.WriteLn('%s: gyp_shared_intermediate_dir := '
'$(GYP_ABS_ANDROID_TOP_DIR)/$(gyp_shared_intermediate_dir)' %
for input in inputs:
assert ' ' not in input, (
"Spaces in action input filenames not supported (%s)" % input)
for output in outputs:
assert ' ' not in output, (
"Spaces in action output filenames not supported (%s)" % output)
self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES)' %
(main_output, ' '.join(map(self.LocalPathify, inputs))))
self.WriteLn('\t@echo "%s"' % quiet_cmd)
self.WriteLn('\t$(hide)%s\n' % command)
for output in outputs[1:]:
# Make each output depend on the main output, with an empty command
# to force make to notice that the mtime has changed.
self.WriteLn('%s: %s ;' % (self.LocalPathify(output), main_output))
extra_outputs += outputs
def WriteRules(self, rules, extra_sources, extra_outputs):
"""Write Makefile code for any 'rules' from the gyp input.
extra_sources: a list that will be filled in with newly generated source
files, if any
extra_outputs: a list that will be filled in with any outputs of these
rules (used to make other pieces dependent on these rules)
if len(rules) == 0:
rule_trigger = '%s_rule_trigger' % self.android_module
did_write_rule = False
for rule in rules:
if len(rule.get('rule_sources', [])) == 0:
did_write_rule = True
name = make.StringToMakefileVariable('%s_%s' % (self.qualified_target,
self.WriteLn('\n### Generated for rule "%s":' % name)
self.WriteLn('# "%s":' % rule)
inputs = rule.get('inputs')
for rule_source in rule.get('rule_sources', []):
(rule_source_dirname, rule_source_basename) = os.path.split(rule_source)
(rule_source_root, rule_source_ext) = \
outputs = [self.ExpandInputRoot(out, rule_source_root,
for out in rule['outputs']]
dirs = set()
for out in outputs:
if not out.startswith('$'):
print ('WARNING: Rule for target %s writes output to local path %s'
% (, out))
dir = os.path.dirname(out)
if dir:
extra_outputs += outputs
if int(rule.get('process_outputs_as_sources', False)):
components = []
for component in rule['action']:
component = self.ExpandInputRoot(component, rule_source_root,
if '$(RULE_SOURCES)' in component:
component = component.replace('$(RULE_SOURCES)',
command = gyp.common.EncodePOSIXShellList(components)
cd_action = 'cd $(gyp_local_path)/%s; ' % self.path
command = cd_action + command
if dirs:
command = 'mkdir -p %s' % ' '.join(dirs) + '; ' + command
# We set up a rule to build the first output, and then set up
# a rule for each additional output to depend on the first.
outputs = map(self.LocalPathify, outputs)
main_output = outputs[0]
self.WriteLn('%s: gyp_local_path := $(LOCAL_PATH)' % main_output)
self.WriteLn('%s: gyp_intermediate_dir := '
% main_output)
self.WriteLn('%s: gyp_shared_intermediate_dir := '
% main_output)
main_output_deps = self.LocalPathify(rule_source)
if inputs:
main_output_deps += ' '
main_output_deps += ' '.join([self.LocalPathify(f) for f in inputs])
self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES)' %
(main_output, main_output_deps))
self.WriteLn('\t%s\n' % command)
for output in outputs[1:]:
self.WriteLn('%s: %s' % (output, main_output))
self.WriteLn('.PHONY: %s' % (rule_trigger))
self.WriteLn('%s: %s' % (rule_trigger, main_output))
if did_write_rule:
extra_sources.append(rule_trigger) # Force all rules to run.
self.WriteLn('### Finished generating for all rules')
def WriteCopies(self, copies, extra_outputs):
"""Write Makefile code for any 'copies' from the gyp input.
extra_outputs: a list that will be filled in with any outputs of this action
(used to make other pieces dependent on this action)
self.WriteLn('### Generated for copy rule.')
variable = make.StringToMakefileVariable(self.qualified_target + '_copies')
outputs = []
for copy in copies:
for path in copy['files']:
# The Android build system does not allow generation of files into the
# source tree. The destination should start with a variable, which will
# typically be $(gyp_intermediate_dir) or
# $(gyp_shared_intermediate_dir). Note that we can't use an assertion
# because some of the gyp tests depend on this.
if not copy['destination'].startswith('$'):
print ('WARNING: Copy rule for target %s writes output to '
'local path %s' % (, copy['destination']))
# LocalPathify() calls normpath, stripping trailing slashes.
path = Sourceify(self.LocalPathify(path))
filename = os.path.split(path)[1]
output = Sourceify(self.LocalPathify(os.path.join(copy['destination'],
self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES) | $(ACP)' %
(output, path))
self.WriteLn('\t@echo Copying: $@')
self.WriteLn('\t$(hide) mkdir -p $(dir $@)')
self.WriteLn('\t$(hide) $(ACP) -r $< $@')
self.WriteLn('%s = %s' % (variable,
' '.join(map(make.QuoteSpaces, outputs))))
extra_outputs.append('$(%s)' % variable)
def WriteSourceFlags(self, spec, configs):
"""Write out the flags and include paths used to compile source files for
the current target.
spec, configs: input from gyp.
config = configs[spec['default_configuration']]
extracted_includes = []
self.WriteLn('\n# Flags passed to both C and C++ files.')
cflags, includes_from_cflags = self.ExtractIncludesFromCFlags(
self.WriteList(cflags, 'MY_CFLAGS')
cflags_c, includes_from_cflags_c = self.ExtractIncludesFromCFlags(
self.WriteList(cflags_c, 'MY_CFLAGS_C')
self.WriteList(config.get('defines'), 'MY_DEFS', prefix='-D',
# Undefine ANDROID for host modules
# TODO: the source code should not use macro ANDROID to tell if it's host or
# target module.
if self.toolset == 'host':
self.WriteLn('# Undefine ANDROID for host modules')
self.WriteLn('\n# Include paths placed before CFLAGS/CPPFLAGS')
includes = list(config.get('include_dirs', []))
includes = map(Sourceify, map(self.LocalPathify, includes))
includes = self.NormalizeIncludePaths(includes)
self.WriteList(includes, 'LOCAL_C_INCLUDES')
self.WriteLn('\n# Flags passed to only C++ (and not C) files.')
self.WriteList(config.get('cflags_cc'), 'LOCAL_CPPFLAGS')
def WriteSources(self, spec, configs, extra_sources):
"""Write Makefile code for any 'sources' from the gyp input.
These are source files necessary to build the current target.
We need to handle shared_intermediate directory source files as
a special case by copying them to the intermediate directory and
treating them as a genereated sources. Otherwise the Android build
rules won't pick them up.
spec, configs: input from gyp.
extra_sources: Sources generated from Actions or Rules.
sources = filter(make.Compilable, spec.get('sources', []))
generated_not_sources = [x for x in extra_sources if not make.Compilable(x)]
extra_sources = filter(make.Compilable, extra_sources)
# Determine and output the C++ extension used by these sources.
# We simply find the first C++ file and use that extension.
all_sources = sources + extra_sources
local_cpp_extension = '.cpp'
for source in all_sources:
(root, ext) = os.path.splitext(source)
if IsCPPExtension(ext):
local_cpp_extension = ext
if local_cpp_extension != '.cpp':
self.WriteLn('LOCAL_CPP_EXTENSION := %s' % local_cpp_extension)
# We need to move any non-generated sources that are coming from the
# shared intermediate directory out of LOCAL_SRC_FILES and put them
# into LOCAL_GENERATED_SOURCES. We also need to move over any C++ files
# that don't match our local_cpp_extension, since Android will only
# generate Makefile rules for a single LOCAL_CPP_EXTENSION.
local_files = []
for source in sources:
(root, ext) = os.path.splitext(source)
if '$(gyp_shared_intermediate_dir)' in source:
elif '$(gyp_intermediate_dir)' in source:
elif IsCPPExtension(ext) and ext != local_cpp_extension:
local_files.append(os.path.normpath(os.path.join(self.path, source)))
# For any generated source, if it is coming from the shared intermediate
# directory then we add a Make rule to copy them to the local intermediate
# directory first. This is because the Android LOCAL_GENERATED_SOURCES
# must be in the local module intermediate directory for the compile rules
# to work properly. If the file has the wrong C++ extension, then we add
# a rule to copy that to intermediates and use the new version.
final_generated_sources = []
# If a source file gets copied, we still need to add the orginal source
# directory as header search path, for GCC searches headers in the
# directory that contains the source file by default.
origin_src_dirs = []
for source in extra_sources:
local_file = source
if not '$(gyp_intermediate_dir)/' in local_file:
basename = os.path.basename(local_file)
local_file = '$(gyp_intermediate_dir)/' + basename
(root, ext) = os.path.splitext(local_file)
if IsCPPExtension(ext) and ext != local_cpp_extension:
local_file = root + local_cpp_extension
if local_file != source:
self.WriteLn('%s: %s' % (local_file, self.LocalPathify(source)))
self.WriteLn('\tmkdir -p $(@D); cp $< $@')
# We add back in all of the non-compilable stuff to make sure that the
# make rules have dependencies on them.
self.WriteList(final_generated_sources, 'LOCAL_GENERATED_SOURCES')
origin_src_dirs = gyp.common.uniquer(origin_src_dirs)
origin_src_dirs = map(Sourceify, map(self.LocalPathify, origin_src_dirs))
self.WriteList(origin_src_dirs, 'GYP_COPIED_SOURCE_ORIGIN_DIRS')
self.WriteList(local_files, 'LOCAL_SRC_FILES')
# Write out the flags used to compile the source; this must be done last
# so that GYP_COPIED_SOURCE_ORIGIN_DIRS can be used as an include path.
self.WriteSourceFlags(spec, configs)
def ComputeAndroidModule(self, spec):
"""Return the Android module name used for a gyp spec.
We use the complete qualified target name to avoid collisions between
duplicate targets in different directories. We also add a suffix to
distinguish gyp-generated module names.
if int(spec.get('android_unmangled_name', 0)):
assert self.type != 'shared_library' or'lib')
if self.type == 'shared_library':
# For reasons of convention, the Android build system requires that all
# shared library modules are named 'libfoo' when generating -l flags.
prefix = 'lib_'
prefix = ''
if spec['toolset'] == 'host':
suffix = '_host_gyp'
suffix = '_gyp'
if self.path:
name = '%s%s_%s%s' % (prefix, self.path,, suffix)
name = '%s%s%s' % (prefix,, suffix)
return make.StringToMakefileVariable(name)
def ComputeOutputParts(self, spec):
"""Return the 'output basename' of a gyp spec, split into filename + ext.
Android libraries must be named the same thing as their module name,
otherwise the linker can't find them, so product_name and so on must be
ignored if we are building a library, and the "lib" prepending is
not done for Android.
assert self.type != 'loadable_module' # TODO: not supported?
target = spec['target_name']
target_prefix = ''
target_ext = ''
if self.type == 'static_library':
target = self.ComputeAndroidModule(spec)
target_ext = '.a'
elif self.type == 'shared_library':
target = self.ComputeAndroidModule(spec)
target_ext = '.so'
elif self.type == 'none':
target_ext = '.stamp'
elif self.type != 'executable':
print ("ERROR: What output file should be generated?",
"type", self.type, "target", target)
if self.type != 'static_library' and self.type != 'shared_library':
target_prefix = spec.get('product_prefix', target_prefix)
target = spec.get('product_name', target)
product_ext = spec.get('product_extension')
if product_ext:
target_ext = '.' + product_ext
target_stem = target_prefix + target
return (target_stem, target_ext)
def ComputeOutputBasename(self, spec):
"""Return the 'output basename' of a gyp spec.
E.g., the loadable module 'foobar' in directory 'baz' will produce
return ''.join(self.ComputeOutputParts(spec))
def ComputeOutput(self, spec):
"""Return the 'output' (full output path) of a gyp spec.
E.g., the loadable module 'foobar' in directory 'baz' will produce
if self.type == 'executable' and self.toolset == 'host':
# We install host executables into shared_intermediate_dir so they can be
# run by gyp rules that refer to PRODUCT_DIR.
path = '$(gyp_shared_intermediate_dir)'
elif self.type == 'shared_library':
if self.toolset == 'host':
# Other targets just get built into their intermediate dir.
if self.toolset == 'host':
path = '$(call intermediates-dir-for,%s,%s,true)' % (self.android_class,
path = '$(call intermediates-dir-for,%s,%s)' % (self.android_class,
assert spec.get('product_dir') is None # TODO: not supported?
return os.path.join(path, self.ComputeOutputBasename(spec))
def NormalizeLdFlags(self, ld_flags):
""" Clean up ldflags from gyp file.
Remove any ldflags that contain android_top_dir.
ld_flags: ldflags from gyp files.
clean ldflags
clean_ldflags = []
for flag in ld_flags:
if self.android_top_dir in flag:
return clean_ldflags
def NormalizeIncludePaths(self, include_paths):
""" Normalize include_paths.
Convert absolute paths to relative to the Android top directory;
filter out include paths that are already brought in by the Android build
include_paths: A list of unprocessed include paths.
A list of normalized include paths.
normalized = []
for path in include_paths:
if path[0] == '/':
path = gyp.common.RelativePath(path, self.android_top_dir)
# Filter out the Android standard search path.
if path not in android_standard_include_paths:
return normalized
def ExtractIncludesFromCFlags(self, cflags):
"""Extract includes "-I..." out from cflags
cflags: A list of compiler flags, which may be mixed with "-I.."
A tuple of lists: (clean_clfags, include_paths). "-I.." is trimmed.
clean_cflags = []
include_paths = []
if cflags:
for flag in cflags:
if flag.startswith('-I'):
return (clean_cflags, include_paths)
def ComputeAndroidLibraryModuleNames(self, libraries):
"""Compute the Android module names from libraries, ie spec.get('libraries')
libraries: the value of spec.get('libraries')
A tuple (static_lib_modules, dynamic_lib_modules)
static_lib_modules = []
dynamic_lib_modules = []
for libs in libraries:
# Libs can have multiple words.
for lib in libs.split():
# Filter the system libraries, which are added by default by the Android
# build system.
if (lib == '-lc' or lib == '-lstdc++' or lib == '-lm' or
match ='([^/]+)\.a$', lib)
if match:
match ='([^/]+)\.so$', lib)
if match:
# "-lstlport" -> libstlport
if lib.startswith('-l'):
if lib.endswith('_static'):
static_lib_modules.append('lib' + lib[2:])
dynamic_lib_modules.append('lib' + lib[2:])
return (static_lib_modules, dynamic_lib_modules)
def ComputeDeps(self, spec):
"""Compute the dependencies of a gyp spec.
Returns a tuple (deps, link_deps), where each is a list of
filenames that will need to be put in front of make for either
building (deps) or linking (link_deps).
deps = []
link_deps = []
if 'dependencies' in spec:
deps.extend([target_outputs[dep] for dep in spec['dependencies']
if target_outputs[dep]])
for dep in spec['dependencies']:
if dep in target_link_deps:
return (gyp.common.uniquer(deps), gyp.common.uniquer(link_deps))
def WriteTargetFlags(self, spec, configs, link_deps):
"""Write Makefile code to specify the link flags and library dependencies.
spec, configs: input from gyp.
link_deps: link dependency list; see ComputeDeps()
config = configs[spec['default_configuration']]
ldflags = list(config.get('ldflags', []))
static_flags, dynamic_flags = self.ComputeAndroidLibraryModuleNames(
self.WriteList(self.NormalizeLdFlags(ldflags), 'LOCAL_LDFLAGS')
# Libraries (i.e. -lfoo)
libraries = gyp.common.uniquer(spec.get('libraries', []))
static_libs, dynamic_libs = self.ComputeAndroidLibraryModuleNames(
# Link dependencies (i.e. libfoo.a,
static_link_deps = [x[1] for x in link_deps if x[0] == 'static']
shared_link_deps = [x[1] for x in link_deps if x[0] == 'shared']
self.WriteList(static_flags + static_libs + static_link_deps,
self.WriteLn('# Enable grouping to fix circular references')
self.WriteList(dynamic_flags + dynamic_libs + shared_link_deps,
def WriteTarget(self, spec, configs, deps, link_deps, part_of_all):
"""Write Makefile code to produce the final target of the gyp spec.
spec, configs: input from gyp.
deps, link_deps: dependency lists; see ComputeDeps()
part_of_all: flag indicating this target is part of 'all'
self.WriteLn('### Rules for final target.')
if self.type != 'none':
self.WriteTargetFlags(spec, configs, link_deps)
# Add to the set of targets which represent the gyp 'all' target. We use the
# name 'gyp_all_modules' as the Android build system doesn't allow the use
# of the Make target 'all' and because 'all_modules' is the equivalent of
# the Make target 'all' on Android.
if part_of_all:
self.WriteLn('# Add target alias to "gyp_all_modules" target.')
self.WriteLn('.PHONY: gyp_all_modules')
self.WriteLn('gyp_all_modules: %s' % self.android_module)
# Add an alias from the gyp target name to the Android module name. This
# simplifies manual builds of the target, and is required by the test
# framework.
if != self.android_module:
self.WriteLn('# Alias gyp target name.')
self.WriteLn('.PHONY: %s' %
self.WriteLn('%s: %s' % (, self.android_module))
# Add the command to trigger build of the target type depending
# NOTE: This has to come last!
modifier = ''
if self.toolset == 'host':
modifier = 'HOST_'
if self.type == 'static_library':
self.WriteLn('include $(BUILD_%sSTATIC_LIBRARY)' % modifier)
elif self.type == 'shared_library':
self.WriteLn('LOCAL_PRELINK_MODULE := false')
self.WriteLn('include $(BUILD_%sSHARED_LIBRARY)' % modifier)
elif self.type == 'executable':
if self.toolset == 'host':
self.WriteLn('LOCAL_MODULE_PATH := $(gyp_shared_intermediate_dir)')
# Don't install target executables for now, as it results in them being
# included in ROM. This can be revisited if there's a reason to install
# them later.
self.WriteLn('include $(BUILD_%sEXECUTABLE)' % modifier)
self.WriteLn('LOCAL_MODULE_PATH := $(PRODUCT_OUT)/gyp_stamp')
self.WriteLn('include $(BUILD_SYSTEM)/')
self.WriteLn('\t$(hide) echo "Gyp timestamp: $@"')
self.WriteLn('\t$(hide) mkdir -p $(dir $@)')
self.WriteLn('\t$(hide) touch $@')
def WriteList(self, value_list, variable=None, prefix='',
quoter=make.QuoteIfNecessary, local_pathify=False):
"""Write a variable definition that is a list of values.
E.g. WriteList(['a','b'], 'foo', prefix='blah') writes out
foo = blaha blahb
but in a pretty-printed style.
values = ''
if value_list:
value_list = [quoter(prefix + l) for l in value_list]
if local_pathify:
value_list = [self.LocalPathify(l) for l in value_list]
values = ' \\\n\t' + ' \\\n\t'.join(value_list)
self.fp.write('%s :=%s\n\n' % (variable, values))
def WriteLn(self, text=''):
self.fp.write(text + '\n')
def LocalPathify(self, path):
"""Convert a subdirectory-relative path into a normalized path which starts
with the make variable $(LOCAL_PATH) (i.e. the top of the project tree).
Absolute paths, or paths that contain variables, are just normalized."""
if '$(' in path or os.path.isabs(path):
# path is not a file in the project tree in this case, but calling
# normpath is still important for trimming trailing slashes.
return os.path.normpath(path)
local_path = os.path.join('$(LOCAL_PATH)', self.path, path)
local_path = os.path.normpath(local_path)
# Check that normalizing the path didn't ../ itself out of $(LOCAL_PATH)
# - i.e. that the resulting path is still inside the project tree. The
# path may legitimately have ended up containing just $(LOCAL_PATH), though,
# so we don't look for a slash.
assert local_path.startswith('$(LOCAL_PATH)'), (
'Path %s attempts to escape from gyp path %s !)' % (path, self.path))
return local_path
def ExpandInputRoot(self, template, expansion, dirname):
if '%(INPUT_ROOT)s' not in template and '%(INPUT_DIRNAME)s' not in template:
return template
path = template % {
'INPUT_ROOT': expansion,
'INPUT_DIRNAME': dirname,
return path
def WriteAutoRegenerationRule(params, root_makefile, makefile_name,
"""Write the target to regenerate the Makefile."""
options = params['options']
# Sort to avoid non-functional changes to makefile.
build_files = sorted([os.path.join('$(LOCAL_PATH)', f) for f in build_files])
build_files_args = [gyp.common.RelativePath(filename, options.toplevel_dir)
for filename in params['build_files_arg']]
build_files_args = [os.path.join('$(PRIVATE_LOCAL_PATH)', f)
for f in build_files_args]
gyp_binary = gyp.common.FixIfRelativePath(params['gyp_binary'],
makefile_path = os.path.join('$(LOCAL_PATH)', makefile_name)
if not gyp_binary.startswith(os.sep):
gyp_binary = os.path.join('.', gyp_binary)
root_makefile.write('GYP_FILES := \\\n %s\n\n' %
'\\\n '.join(map(Sourceify, build_files)))
root_makefile.write('%s: PRIVATE_LOCAL_PATH := $(LOCAL_PATH)\n' %
root_makefile.write('%s: $(GYP_FILES)\n' % makefile_path)
root_makefile.write('\techo ACTION Regenerating $@\n\t%s\n\n' %
gyp.common.EncodePOSIXShellList([gyp_binary, '-fandroid'] +
gyp.RegenerateFlags(options) +
def GenerateOutput(target_list, target_dicts, data, params):
options = params['options']
generator_flags = params.get('generator_flags', {})
builddir_name = generator_flags.get('output_dir', 'out')
limit_to_target_all = generator_flags.get('limit_to_target_all', False)
android_top_dir = os.environ.get('ANDROID_BUILD_TOP')
assert android_top_dir, '$ANDROID_BUILD_TOP not set; you need to run lunch.'
def CalculateMakefilePath(build_file, base_name):
"""Determine where to write a Makefile for a given gyp file."""
# Paths in gyp files are relative to the .gyp file, but we want
# paths relative to the source root for the master makefile. Grab
# the path of the .gyp file as the base to relativize against.
# E.g. "foo/bar" when we're constructing targets for "foo/bar/baz.gyp".
base_path = gyp.common.RelativePath(os.path.dirname(build_file),
# We write the file in the base_path directory.
output_file = os.path.join(options.depth, base_path, base_name)
assert not options.generator_output, (
'The Android backend does not support options.generator_output.')
base_path = gyp.common.RelativePath(os.path.dirname(build_file),
return base_path, output_file
# TODO: search for the first non-'Default' target. This can go
# away when we add verification that all targets have the
# necessary configurations.
default_configuration = None
toolsets = set([target_dicts[target]['toolset'] for target in target_list])
for target in target_list:
spec = target_dicts[target]
if spec['default_configuration'] != 'Default':
default_configuration = spec['default_configuration']
if not default_configuration:
default_configuration = 'Default'
srcdir = '.'
makefile_name = 'GypAndroid' + options.suffix + '.mk'
makefile_path = os.path.join(options.toplevel_dir, makefile_name)
assert not options.generator_output, (
'The Android backend does not support options.generator_output.')
root_makefile = open(makefile_path, 'w')
# We set LOCAL_PATH just once, here, to the top of the project tree. This
# allows all the other paths we use to be relative to the file,
# as the Android build system expects.
root_makefile.write('\nLOCAL_PATH := $(call my-dir)\n')
# Find the list of targets that derive from the gyp file(s) being built.
needed_targets = set()
for build_file in params['build_files']:
for target in gyp.common.AllTargets(target_list, target_dicts, build_file):
build_files = set()
include_list = set()
android_modules = {}
for qualified_target in target_list:
build_file, target, toolset = gyp.common.ParseQualifiedTarget(
build_files.add(gyp.common.RelativePath(build_file, options.toplevel_dir))
included_files = data[build_file]['included_files']
for included_file in included_files:
# The included_files entries are relative to the dir of the build file
# that included them, so we have to undo that and then make them relative
# to the root dir.
relative_include_file = gyp.common.RelativePath(
gyp.common.UnrelativePath(included_file, build_file),
abs_include_file = os.path.abspath(relative_include_file)
# If the include file is from the ~/.gyp dir, we should use absolute path
# so that relocating the src dir doesn't break the path.
if (params['home_dot_gyp'] and
base_path, output_file = CalculateMakefilePath(build_file,
target + '.' + toolset + options.suffix + '.mk')
spec = target_dicts[qualified_target]
configs = spec['configurations']
part_of_all = (qualified_target in needed_targets and
not int(spec.get('suppress_wildcard', False)))
if limit_to_target_all and not part_of_all:
writer = AndroidMkWriter(android_top_dir)
android_module = writer.Write(qualified_target, base_path, output_file,
spec, configs, part_of_all=part_of_all)
if android_module in android_modules:
print ('ERROR: Android module names must be unique. The following '
'targets both generate Android module name %s.\n %s\n %s' %
(android_module, android_modules[android_module],
android_modules[android_module] = qualified_target
# Our root_makefile lives at the source root. Compute the relative path
# from there to the output_file for including.
mkfile_rel_path = gyp.common.RelativePath(output_file,
# Some tools need to know the absolute path of the top directory.
root_makefile.write('GYP_ABS_ANDROID_TOP_DIR := $(shell pwd)\n')
# Write out the sorted list of includes.
for include_file in sorted(include_list):
root_makefile.write('include $(LOCAL_PATH)/' + include_file + '\n')
if generator_flags.get('auto_regeneration', True):
WriteAutoRegenerationRule(params, root_makefile, makefile_name, build_files)