/
make.py
2683 lines (2363 loc) · 106 KB
/
make.py
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# Copyright (c) 2013 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 is all roughly based on the Makefile system used by the Linux
# kernel, but is a non-recursive make -- we put the entire dependency
# graph in front of make and let it figure it out.
#
# The code below generates a separate .mk file for each target, but
# all are sourced by the top-level Makefile. This means that all
# variables in .mk-files clobber one another. Be careful to use :=
# where appropriate for immediate evaluation, and similarly to watch
# that you're not relying on a variable value to last between different
# .mk files.
#
# TODOs:
#
# Global settings and utility functions are currently stuffed in the
# toplevel Makefile. It may make sense to generate some .mk files on
# the side to keep the files readable.
import os
import re
import subprocess
import gyp
import gyp.common
import gyp.xcode_emulation
from gyp.common import GetEnvironFallback
import hashlib
generator_default_variables = {
"EXECUTABLE_PREFIX": "",
"EXECUTABLE_SUFFIX": "",
"STATIC_LIB_PREFIX": "lib",
"SHARED_LIB_PREFIX": "lib",
"STATIC_LIB_SUFFIX": ".a",
"INTERMEDIATE_DIR": "$(obj).$(TOOLSET)/$(TARGET)/geni",
"SHARED_INTERMEDIATE_DIR": "$(obj)/gen",
"PRODUCT_DIR": "$(builddir)",
"RULE_INPUT_ROOT": "%(INPUT_ROOT)s", # This gets expanded by Python.
"RULE_INPUT_DIRNAME": "%(INPUT_DIRNAME)s", # This gets expanded by Python.
"RULE_INPUT_PATH": "$(abspath $<)",
"RULE_INPUT_EXT": "$(suffix $<)",
"RULE_INPUT_NAME": "$(notdir $<)",
"CONFIGURATION_NAME": "$(BUILDTYPE)",
}
# Make supports multiple toolsets
generator_supports_multiple_toolsets = gyp.common.CrossCompileRequested()
# Request sorted dependencies in the order from dependents to dependencies.
generator_wants_sorted_dependencies = False
# Placates pylint.
generator_additional_non_configuration_keys = []
generator_additional_path_sections = []
generator_extra_sources_for_rules = []
generator_filelist_paths = None
def CalculateVariables(default_variables, params):
"""Calculate additional variables for use in the build (called by gyp)."""
flavor = gyp.common.GetFlavor(params)
if flavor == "mac":
default_variables.setdefault("OS", "mac")
default_variables.setdefault("SHARED_LIB_SUFFIX", ".dylib")
default_variables.setdefault(
"SHARED_LIB_DIR", generator_default_variables["PRODUCT_DIR"]
)
default_variables.setdefault(
"LIB_DIR", generator_default_variables["PRODUCT_DIR"]
)
# Copy additional generator configuration data from Xcode, which is shared
# by the Mac Make generator.
import gyp.generator.xcode as xcode_generator
global generator_additional_non_configuration_keys
generator_additional_non_configuration_keys = getattr(
xcode_generator, "generator_additional_non_configuration_keys", []
)
global generator_additional_path_sections
generator_additional_path_sections = getattr(
xcode_generator, "generator_additional_path_sections", []
)
global generator_extra_sources_for_rules
generator_extra_sources_for_rules = getattr(
xcode_generator, "generator_extra_sources_for_rules", []
)
COMPILABLE_EXTENSIONS.update({".m": "objc", ".mm": "objcxx"})
else:
operating_system = flavor
if flavor == "android":
operating_system = "linux" # Keep this legacy behavior for now.
default_variables.setdefault("OS", operating_system)
if flavor == "aix":
default_variables.setdefault("SHARED_LIB_SUFFIX", ".a")
elif flavor == "zos":
default_variables.setdefault("SHARED_LIB_SUFFIX", ".x")
else:
default_variables.setdefault("SHARED_LIB_SUFFIX", ".so")
default_variables.setdefault("SHARED_LIB_DIR", "$(builddir)/lib.$(TOOLSET)")
default_variables.setdefault("LIB_DIR", "$(obj).$(TOOLSET)")
def CalculateGeneratorInputInfo(params):
"""Calculate the generator specific info that gets fed to input (called by
gyp)."""
generator_flags = params.get("generator_flags", {})
android_ndk_version = generator_flags.get("android_ndk_version", None)
# Android NDK requires a strict link order.
if android_ndk_version:
global generator_wants_sorted_dependencies
generator_wants_sorted_dependencies = True
output_dir = params["options"].generator_output or params["options"].toplevel_dir
builddir_name = generator_flags.get("output_dir", "out")
qualified_out_dir = os.path.normpath(
os.path.join(output_dir, builddir_name, "gypfiles")
)
global generator_filelist_paths
generator_filelist_paths = {
"toplevel": params["options"].toplevel_dir,
"qualified_out_dir": qualified_out_dir,
}
# The .d checking code below uses these functions:
# wildcard, sort, foreach, shell, wordlist
# wildcard can handle spaces, the rest can't.
# Since I could find no way to make foreach work with spaces in filenames
# correctly, the .d files have spaces replaced with another character. The .d
# file for
# Chromium\ Framework.framework/foo
# is for example
# out/Release/.deps/out/Release/Chromium?Framework.framework/foo
# This is the replacement character.
SPACE_REPLACEMENT = "?"
LINK_COMMANDS_LINUX = """\
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
# Due to circular dependencies between libraries :(, we wrap the
# special "figure out circular dependencies" flags around the entire
# input list during linking.
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) -o $@ $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,--start-group $(LD_INPUTS) $(LIBS) -Wl,--end-group
# Note: this does not handle spaces in paths
define xargs
$(1) $(word 1,$(2))
$(if $(word 2,$(2)),$(call xargs,$(1),$(wordlist 2,$(words $(2)),$(2))))
endef
define write-to-file
@: >$(1)
$(call xargs,@printf "%s\\n" >>$(1),$(2))
endef
OBJ_FILE_LIST := ar-file-list
define create_archive
rm -f $(1) $(1).$(OBJ_FILE_LIST); mkdir -p `dirname $(1)`
$(call write-to-file,$(1).$(OBJ_FILE_LIST),$(filter %.o,$(2)))
$(AR.$(TOOLSET)) crs $(1) @$(1).$(OBJ_FILE_LIST)
endef
define create_thin_archive
rm -f $(1) $(OBJ_FILE_LIST); mkdir -p `dirname $(1)`
$(call write-to-file,$(1).$(OBJ_FILE_LIST),$(filter %.o,$(2)))
$(AR.$(TOOLSET)) crsT $(1) @$(1).$(OBJ_FILE_LIST)
endef
# We support two kinds of shared objects (.so):
# 1) shared_library, which is just bundling together many dependent libraries
# into a link line.
# 2) loadable_module, which is generating a module intended for dlopen().
#
# They differ only slightly:
# In the former case, we want to package all dependent code into the .so.
# In the latter case, we want to package just the API exposed by the
# outermost module.
# This means shared_library uses --whole-archive, while loadable_module doesn't.
# (Note that --whole-archive is incompatible with the --start-group used in
# normal linking.)
# Other shared-object link notes:
# - Set SONAME to the library filename so our binaries don't reference
# the local, absolute paths used on the link command-line.
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -o $@ -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -o $@ -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS)
""" # noqa: E501
LINK_COMMANDS_MAC = """\
quiet_cmd_alink = LIBTOOL-STATIC $@
cmd_alink = rm -f $@ && ./gyp-mac-tool filter-libtool libtool $(GYP_LIBTOOLFLAGS) -static -o $@ $(filter %.o,$^)
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o "$@" $(LD_INPUTS) $(LIBS)
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o "$@" $(LD_INPUTS) $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -bundle $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
""" # noqa: E501
LINK_COMMANDS_ANDROID = """\
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
# Note: this does not handle spaces in paths
define xargs
$(1) $(word 1,$(2))
$(if $(word 2,$(2)),$(call xargs,$(1),$(wordlist 2,$(words $(2)),$(2))))
endef
define write-to-file
@: >$(1)
$(call xargs,@printf "%s\\n" >>$(1),$(2))
endef
OBJ_FILE_LIST := ar-file-list
define create_archive
rm -f $(1) $(1).$(OBJ_FILE_LIST); mkdir -p `dirname $(1)`
$(call write-to-file,$(1).$(OBJ_FILE_LIST),$(filter %.o,$(2)))
$(AR.$(TOOLSET)) crs $(1) @$(1).$(OBJ_FILE_LIST)
endef
define create_thin_archive
rm -f $(1) $(OBJ_FILE_LIST); mkdir -p `dirname $(1)`
$(call write-to-file,$(1).$(OBJ_FILE_LIST),$(filter %.o,$(2)))
$(AR.$(TOOLSET)) crsT $(1) @$(1).$(OBJ_FILE_LIST)
endef
# Due to circular dependencies between libraries :(, we wrap the
# special "figure out circular dependencies" flags around the entire
# input list during linking.
quiet_cmd_link = LINK($(TOOLSET)) $@
quiet_cmd_link_host = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) -Wl,--end-group $(LIBS)
cmd_link_host = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) -Wl,--end-group $(LIBS)
# Other shared-object link notes:
# - Set SONAME to the library filename so our binaries don't reference
# the local, absolute paths used on the link command-line.
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS)
quiet_cmd_solink_module_host = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module_host = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
""" # noqa: E501
LINK_COMMANDS_AIX = """\
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) -X32_64 crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) -X32_64 crs $@ $(filter %.o,$^)
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
""" # noqa: E501
LINK_COMMANDS_OS400 = """\
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) -X64 crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) -X64 crs $@ $(filter %.o,$^)
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
""" # noqa: E501
LINK_COMMANDS_OS390 = """\
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,DLL -o $(patsubst %.x,%.so,$@) $(LD_INPUTS) $(LIBS) && if [ -f $(notdir $@) ]; then /bin/cp $(notdir $@) $@; else true; fi
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
""" # noqa: E501
# Header of toplevel Makefile.
# This should go into the build tree, but it's easier to keep it here for now.
SHARED_HEADER = (
"""\
# We borrow heavily from the kernel build setup, though we are simpler since
# we don't have Kconfig tweaking settings on us.
# The implicit make rules have it looking for RCS files, among other things.
# We instead explicitly write all the rules we care about.
# It's even quicker (saves ~200ms) to pass -r on the command line.
MAKEFLAGS=-r
# The source directory tree.
srcdir := %(srcdir)s
abs_srcdir := $(abspath $(srcdir))
# The name of the builddir.
builddir_name ?= %(builddir)s
# The V=1 flag on command line makes us verbosely print command lines.
ifdef V
quiet=
else
quiet=quiet_
endif
# Specify BUILDTYPE=Release on the command line for a release build.
BUILDTYPE ?= %(default_configuration)s
# Directory all our build output goes into.
# Note that this must be two directories beneath src/ for unit tests to pass,
# as they reach into the src/ directory for data with relative paths.
builddir ?= $(builddir_name)/$(BUILDTYPE)
abs_builddir := $(abspath $(builddir))
depsdir := $(builddir)/.deps
# Object output directory.
obj := $(builddir)/obj
abs_obj := $(abspath $(obj))
# We build up a list of every single one of the targets so we can slurp in the
# generated dependency rule Makefiles in one pass.
all_deps :=
%(make_global_settings)s
CC.target ?= %(CC.target)s
CFLAGS.target ?= $(CPPFLAGS) $(CFLAGS)
CXX.target ?= %(CXX.target)s
CXXFLAGS.target ?= $(CPPFLAGS) $(CXXFLAGS)
LINK.target ?= %(LINK.target)s
LDFLAGS.target ?= $(LDFLAGS)
AR.target ?= $(AR)
# C++ apps need to be linked with g++.
LINK ?= $(CXX.target)
# TODO(evan): move all cross-compilation logic to gyp-time so we don't need
# to replicate this environment fallback in make as well.
CC.host ?= %(CC.host)s
CFLAGS.host ?= $(CPPFLAGS_host) $(CFLAGS_host)
CXX.host ?= %(CXX.host)s
CXXFLAGS.host ?= $(CPPFLAGS_host) $(CXXFLAGS_host)
LINK.host ?= %(LINK.host)s
LDFLAGS.host ?= $(LDFLAGS_host)
AR.host ?= %(AR.host)s
# Define a dir function that can handle spaces.
# http://www.gnu.org/software/make/manual/make.html#Syntax-of-Functions
# "leading spaces cannot appear in the text of the first argument as written.
# These characters can be put into the argument value by variable substitution."
empty :=
space := $(empty) $(empty)
# http://stackoverflow.com/questions/1189781/using-make-dir-or-notdir-on-a-path-with-spaces
replace_spaces = $(subst $(space),"""
+ SPACE_REPLACEMENT
+ """,$1)
unreplace_spaces = $(subst """
+ SPACE_REPLACEMENT
+ """,$(space),$1)
dirx = $(call unreplace_spaces,$(dir $(call replace_spaces,$1)))
# Flags to make gcc output dependency info. Note that you need to be
# careful here to use the flags that ccache and distcc can understand.
# We write to a dep file on the side first and then rename at the end
# so we can't end up with a broken dep file.
depfile = $(depsdir)/$(call replace_spaces,$@).d
DEPFLAGS = %(makedep_args)s -MF $(depfile).raw
# We have to fixup the deps output in a few ways.
# (1) the file output should mention the proper .o file.
# ccache or distcc lose the path to the target, so we convert a rule of
# the form:
# foobar.o: DEP1 DEP2
# into
# path/to/foobar.o: DEP1 DEP2
# (2) we want missing files not to cause us to fail to build.
# We want to rewrite
# foobar.o: DEP1 DEP2 \\
# DEP3
# to
# DEP1:
# DEP2:
# DEP3:
# so if the files are missing, they're just considered phony rules.
# We have to do some pretty insane escaping to get those backslashes
# and dollar signs past make, the shell, and sed at the same time.
# Doesn't work with spaces, but that's fine: .d files have spaces in
# their names replaced with other characters."""
r"""
define fixup_dep
# The depfile may not exist if the input file didn't have any #includes.
touch $(depfile).raw
# Fixup path as in (1).
sed -e "s|^$(notdir $@)|$@|" $(depfile).raw >> $(depfile)
# Add extra rules as in (2).
# We remove slashes and replace spaces with new lines;
# remove blank lines;
# delete the first line and append a colon to the remaining lines.
sed -e 's|\\||' -e 'y| |\n|' $(depfile).raw |\
grep -v '^$$' |\
sed -e 1d -e 's|$$|:|' \
>> $(depfile)
rm $(depfile).raw
endef
"""
"""
# Command definitions:
# - cmd_foo is the actual command to run;
# - quiet_cmd_foo is the brief-output summary of the command.
quiet_cmd_cc = CC($(TOOLSET)) $@
cmd_cc = $(CC.$(TOOLSET)) -o $@ $< $(GYP_CFLAGS) $(DEPFLAGS) $(CFLAGS.$(TOOLSET)) -c
quiet_cmd_cxx = CXX($(TOOLSET)) $@
cmd_cxx = $(CXX.$(TOOLSET)) -o $@ $< $(GYP_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c
%(extra_commands)s
quiet_cmd_touch = TOUCH $@
cmd_touch = touch $@
quiet_cmd_copy = COPY $@
# send stderr to /dev/null to ignore messages when linking directories.
cmd_copy = ln -f "$<" "$@" 2>/dev/null || (rm -rf "$@" && cp %(copy_archive_args)s "$<" "$@")
quiet_cmd_symlink = SYMLINK $@
cmd_symlink = ln -sf "$<" "$@"
%(link_commands)s
""" # noqa: E501
r"""
# Define an escape_quotes function to escape single quotes.
# This allows us to handle quotes properly as long as we always use
# use single quotes and escape_quotes.
escape_quotes = $(subst ','\'',$(1))
# This comment is here just to include a ' to unconfuse syntax highlighting.
# Define an escape_vars function to escape '$' variable syntax.
# This allows us to read/write command lines with shell variables (e.g.
# $LD_LIBRARY_PATH), without triggering make substitution.
escape_vars = $(subst $$,$$$$,$(1))
# Helper that expands to a shell command to echo a string exactly as it is in
# make. This uses printf instead of echo because printf's behaviour with respect
# to escape sequences is more portable than echo's across different shells
# (e.g., dash, bash).
exact_echo = printf '%%s\n' '$(call escape_quotes,$(1))'
"""
"""
# Helper to compare the command we're about to run against the command
# we logged the last time we ran the command. Produces an empty
# string (false) when the commands match.
# Tricky point: Make has no string-equality test function.
# The kernel uses the following, but it seems like it would have false
# positives, where one string reordered its arguments.
# arg_check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \\
# $(filter-out $(cmd_$@), $(cmd_$(1))))
# We instead substitute each for the empty string into the other, and
# say they're equal if both substitutions produce the empty string.
# .d files contain """
+ SPACE_REPLACEMENT
+ """ instead of spaces, take that into account.
command_changed = $(or $(subst $(cmd_$(1)),,$(cmd_$(call replace_spaces,$@))),\\
$(subst $(cmd_$(call replace_spaces,$@)),,$(cmd_$(1))))
# Helper that is non-empty when a prerequisite changes.
# Normally make does this implicitly, but we force rules to always run
# so we can check their command lines.
# $? -- new prerequisites
# $| -- order-only dependencies
prereq_changed = $(filter-out FORCE_DO_CMD,$(filter-out $|,$?))
# Helper that executes all postbuilds until one fails.
define do_postbuilds
@E=0;\\
for p in $(POSTBUILDS); do\\
eval $$p;\\
E=$$?;\\
if [ $$E -ne 0 ]; then\\
break;\\
fi;\\
done;\\
if [ $$E -ne 0 ]; then\\
rm -rf "$@";\\
exit $$E;\\
fi
endef
# do_cmd: run a command via the above cmd_foo names, if necessary.
# Should always run for a given target to handle command-line changes.
# Second argument, if non-zero, makes it do asm/C/C++ dependency munging.
# Third argument, if non-zero, makes it do POSTBUILDS processing.
# Note: We intentionally do NOT call dirx for depfile, since it contains """
+ SPACE_REPLACEMENT
+ """ for
# spaces already and dirx strips the """
+ SPACE_REPLACEMENT
+ """ characters.
define do_cmd
$(if $(or $(command_changed),$(prereq_changed)),
@$(call exact_echo, $($(quiet)cmd_$(1)))
@mkdir -p "$(call dirx,$@)" "$(dir $(depfile))"
$(if $(findstring flock,$(word %(flock_index)d,$(cmd_$1))),
@$(cmd_$(1))
@echo " $(quiet_cmd_$(1)): Finished",
@$(cmd_$(1))
)
@$(call exact_echo,$(call escape_vars,cmd_$(call replace_spaces,$@) := $(cmd_$(1)))) > $(depfile)
@$(if $(2),$(fixup_dep))
$(if $(and $(3), $(POSTBUILDS)),
$(call do_postbuilds)
)
)
endef
# Declare the "%(default_target)s" target first so it is the default,
# even though we don't have the deps yet.
.PHONY: %(default_target)s
%(default_target)s:
# make looks for ways to re-generate included makefiles, but in our case, we
# don't have a direct way. Explicitly telling make that it has nothing to do
# for them makes it go faster.
%%.d: ;
# Use FORCE_DO_CMD to force a target to run. Should be coupled with
# do_cmd.
.PHONY: FORCE_DO_CMD
FORCE_DO_CMD:
""" # noqa: E501
)
SHARED_HEADER_MAC_COMMANDS = """
quiet_cmd_objc = CXX($(TOOLSET)) $@
cmd_objc = $(CC.$(TOOLSET)) $(GYP_OBJCFLAGS) $(DEPFLAGS) -c -o $@ $<
quiet_cmd_objcxx = CXX($(TOOLSET)) $@
cmd_objcxx = $(CXX.$(TOOLSET)) $(GYP_OBJCXXFLAGS) $(DEPFLAGS) -c -o $@ $<
# Commands for precompiled header files.
quiet_cmd_pch_c = CXX($(TOOLSET)) $@
cmd_pch_c = $(CC.$(TOOLSET)) $(GYP_PCH_CFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<
quiet_cmd_pch_cc = CXX($(TOOLSET)) $@
cmd_pch_cc = $(CC.$(TOOLSET)) $(GYP_PCH_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<
quiet_cmd_pch_m = CXX($(TOOLSET)) $@
cmd_pch_m = $(CC.$(TOOLSET)) $(GYP_PCH_OBJCFLAGS) $(DEPFLAGS) -c -o $@ $<
quiet_cmd_pch_mm = CXX($(TOOLSET)) $@
cmd_pch_mm = $(CC.$(TOOLSET)) $(GYP_PCH_OBJCXXFLAGS) $(DEPFLAGS) -c -o $@ $<
# gyp-mac-tool is written next to the root Makefile by gyp.
# Use $(4) for the command, since $(2) and $(3) are used as flag by do_cmd
# already.
quiet_cmd_mac_tool = MACTOOL $(4) $<
cmd_mac_tool = ./gyp-mac-tool $(4) $< "$@"
quiet_cmd_mac_package_framework = PACKAGE FRAMEWORK $@
cmd_mac_package_framework = ./gyp-mac-tool package-framework "$@" $(4)
quiet_cmd_infoplist = INFOPLIST $@
cmd_infoplist = $(CC.$(TOOLSET)) -E -P -Wno-trigraphs -x c $(INFOPLIST_DEFINES) "$<" -o "$@"
""" # noqa: E501
def WriteRootHeaderSuffixRules(writer):
extensions = sorted(COMPILABLE_EXTENSIONS.keys(), key=str.lower)
writer.write("# Suffix rules, putting all outputs into $(obj).\n")
for ext in extensions:
writer.write("$(obj).$(TOOLSET)/%%.o: $(srcdir)/%%%s FORCE_DO_CMD\n" % ext)
writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
writer.write("\n# Try building from generated source, too.\n")
for ext in extensions:
writer.write(
"$(obj).$(TOOLSET)/%%.o: $(obj).$(TOOLSET)/%%%s FORCE_DO_CMD\n" % ext
)
writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
writer.write("\n")
for ext in extensions:
writer.write("$(obj).$(TOOLSET)/%%.o: $(obj)/%%%s FORCE_DO_CMD\n" % ext)
writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
writer.write("\n")
SHARED_HEADER_SUFFIX_RULES_COMMENT1 = """\
# Suffix rules, putting all outputs into $(obj).
"""
SHARED_HEADER_SUFFIX_RULES_COMMENT2 = """\
# Try building from generated source, too.
"""
SHARED_FOOTER = """\
# "all" is a concatenation of the "all" targets from all the included
# sub-makefiles. This is just here to clarify.
all:
# Add in dependency-tracking rules. $(all_deps) is the list of every single
# target in our tree. Only consider the ones with .d (dependency) info:
d_files := $(wildcard $(foreach f,$(all_deps),$(depsdir)/$(f).d))
ifneq ($(d_files),)
include $(d_files)
endif
"""
header = """\
# This file is generated by gyp; do not edit.
"""
# Maps every compilable file extension to the do_cmd that compiles it.
COMPILABLE_EXTENSIONS = {
".c": "cc",
".cc": "cxx",
".cpp": "cxx",
".cxx": "cxx",
".s": "cc",
".S": "cc",
}
def Compilable(filename):
"""Return true if the file is compilable (should be in OBJS)."""
for res in (filename.endswith(e) for e in COMPILABLE_EXTENSIONS):
if res:
return True
return False
def Linkable(filename):
"""Return true if the file is linkable (should be on the link line)."""
return filename.endswith(".o")
def Target(filename):
"""Translate a compilable filename to its .o target."""
return os.path.splitext(filename)[0] + ".o"
def EscapeShellArgument(s):
"""Quotes an argument so that it will be interpreted literally by a POSIX
shell. Taken from
http://stackoverflow.com/questions/35817/whats-the-best-way-to-escape-ossystem-calls-in-python
"""
return "'" + s.replace("'", "'\\''") + "'"
def EscapeMakeVariableExpansion(s):
"""Make has its own variable expansion syntax using $. We must escape it for
string to be interpreted literally."""
return s.replace("$", "$$")
def EscapeCppDefine(s):
"""Escapes a CPP define so that it will reach the compiler unaltered."""
s = EscapeShellArgument(s)
s = EscapeMakeVariableExpansion(s)
# '#' characters must be escaped even embedded in a string, else Make will
# treat it as the start of a comment.
return s.replace("#", r"\#")
def QuoteIfNecessary(string):
"""TODO: Should this ideally be replaced with one or more of the above
functions?"""
if '"' in string:
string = '"' + string.replace('"', '\\"') + '"'
return string
def StringToMakefileVariable(string):
"""Convert a string to a value that is acceptable as a make variable name."""
return re.sub("[^a-zA-Z0-9_]", "_", string)
srcdir_prefix = ""
def Sourceify(path):
"""Convert a path to its source directory form."""
if "$(" in path:
return path
if os.path.isabs(path):
return path
return srcdir_prefix + path
def QuoteSpaces(s, quote=r"\ "):
return s.replace(" ", quote)
def SourceifyAndQuoteSpaces(path):
"""Convert a path to its source directory form and quote spaces."""
return QuoteSpaces(Sourceify(path))
# Map from qualified target to path to output.
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 MakefileWriter:
"""MakefileWriter packages up the writing of one target-specific foobar.mk.
Its only real entry point is Write(), and is mostly used for namespacing.
"""
def __init__(self, generator_flags, flavor):
self.generator_flags = generator_flags
self.flavor = flavor
self.suffix_rules_srcdir = {}
self.suffix_rules_objdir1 = {}
self.suffix_rules_objdir2 = {}
# Generate suffix rules for all compilable extensions.
for ext in COMPILABLE_EXTENSIONS.keys():
# Suffix rules for source folder.
self.suffix_rules_srcdir.update(
{
ext: (
"""\
$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(srcdir)/%%%s FORCE_DO_CMD
\t@$(call do_cmd,%s,1)
"""
% (ext, COMPILABLE_EXTENSIONS[ext])
)
}
)
# Suffix rules for generated source files.
self.suffix_rules_objdir1.update(
{
ext: (
"""\
$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj).$(TOOLSET)/%%%s FORCE_DO_CMD
\t@$(call do_cmd,%s,1)
"""
% (ext, COMPILABLE_EXTENSIONS[ext])
)
}
)
self.suffix_rules_objdir2.update(
{
ext: (
"""\
$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj)/%%%s FORCE_DO_CMD
\t@$(call do_cmd,%s,1)
"""
% (ext, COMPILABLE_EXTENSIONS[ext])
)
}
)
def Write(
self, qualified_target, base_path, output_filename, spec, configs, part_of_all
):
"""The main entry point: writes a .mk file for a single target.
Arguments:
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'
"""
gyp.common.EnsureDirExists(output_filename)
self.fp = open(output_filename, "w")
self.fp.write(header)
self.qualified_target = qualified_target
self.path = base_path
self.target = spec["target_name"]
self.type = spec["type"]
self.toolset = spec["toolset"]
self.is_mac_bundle = gyp.xcode_emulation.IsMacBundle(self.flavor, spec)
if self.flavor == "mac":
self.xcode_settings = gyp.xcode_emulation.XcodeSettings(spec)
else:
self.xcode_settings = None
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 = []
extra_link_deps = []
extra_mac_bundle_resources = []
mac_bundle_deps = []
if self.is_mac_bundle:
self.output = self.ComputeMacBundleOutput(spec)
self.output_binary = self.ComputeMacBundleBinaryOutput(spec)
else:
self.output = self.output_binary = self.ComputeOutput(spec)
self.is_standalone_static_library = bool(
spec.get("standalone_static_library", 0)
)
self._INSTALLABLE_TARGETS = ("executable", "loadable_module", "shared_library")
if self.is_standalone_static_library or self.type in self._INSTALLABLE_TARGETS:
self.alias = os.path.basename(self.output)
install_path = self._InstallableTargetInstallPath()
else:
self.alias = self.output
install_path = self.output
self.WriteLn("TOOLSET := " + self.toolset)
self.WriteLn("TARGET := " + self.target)
# 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,
extra_mac_bundle_resources,
part_of_all,
)
# Rules must be early like actions.
if "rules" in spec:
self.WriteRules(
spec["rules"],
extra_sources,
extra_outputs,
extra_mac_bundle_resources,
part_of_all,
)
if "copies" in spec:
self.WriteCopies(spec["copies"], extra_outputs, part_of_all)
# Bundle resources.
if self.is_mac_bundle:
all_mac_bundle_resources = (
spec.get("mac_bundle_resources", []) + extra_mac_bundle_resources
)
self.WriteMacBundleResources(all_mac_bundle_resources, mac_bundle_deps)
self.WriteMacInfoPlist(mac_bundle_deps)
# Sources.
all_sources = spec.get("sources", []) + extra_sources
if all_sources:
self.WriteSources(
configs,
deps,
all_sources,
extra_outputs,
extra_link_deps,
part_of_all,
gyp.xcode_emulation.MacPrefixHeader(
self.xcode_settings,
lambda p: Sourceify(self.Absolutify(p)),
self.Pchify,
),
)
sources = [x for x in all_sources if Compilable(x)]
if sources:
self.WriteLn(SHARED_HEADER_SUFFIX_RULES_COMMENT1)
extensions = {os.path.splitext(s)[1] for s in sources}
for ext in extensions:
if ext in self.suffix_rules_srcdir:
self.WriteLn(self.suffix_rules_srcdir[ext])
self.WriteLn(SHARED_HEADER_SUFFIX_RULES_COMMENT2)
for ext in extensions:
if ext in self.suffix_rules_objdir1:
self.WriteLn(self.suffix_rules_objdir1[ext])
for ext in extensions:
if ext in self.suffix_rules_objdir2:
self.WriteLn(self.suffix_rules_objdir2[ext])
self.WriteLn("# End of this set of suffix rules")
# Add dependency from bundle to bundle binary.
if self.is_mac_bundle:
mac_bundle_deps.append(self.output_binary)
self.WriteTarget(
spec,
configs,
deps,
extra_link_deps + link_deps,
mac_bundle_deps,
extra_outputs,
part_of_all,
)
# Update global list of target outputs, used in dependency tracking.
target_outputs[qualified_target] = install_path
# Update global list of link dependencies.
if self.type in ("static_library", "shared_library"):
target_link_deps[qualified_target] = self.output_binary
# Currently any versions have the same effect, but in future the behavior
# could be different.
if self.generator_flags.get("android_ndk_version", None):
self.WriteAndroidNdkModuleRule(self.target, all_sources, link_deps)
self.fp.close()
def WriteSubMake(self, output_filename, makefile_path, targets, build_dir):
"""Write a "sub-project" Makefile.
This is a small, wrapper Makefile that calls the top-level Makefile to build
the targets from a single gyp file (i.e. a sub-project).
Arguments:
output_filename: sub-project Makefile name to write
makefile_path: path to the top-level Makefile
targets: list of "all" targets for this sub-project
build_dir: build output directory, relative to the sub-project
"""
gyp.common.EnsureDirExists(output_filename)
self.fp = open(output_filename, "w")
self.fp.write(header)
# For consistency with other builders, put sub-project build output in the
# sub-project dir (see test/subdirectory/gyptest-subdir-all.py).
self.WriteLn(
"export builddir_name ?= %s"
% os.path.join(os.path.dirname(output_filename), build_dir)
)
self.WriteLn(".PHONY: all")
self.WriteLn("all:")
if makefile_path:
makefile_path = " -C " + makefile_path
self.WriteLn("\t$(MAKE){} {}".format(makefile_path, " ".join(targets)))
self.fp.close()
def WriteActions(
self,
actions,
extra_sources,
extra_outputs,
extra_mac_bundle_resources,
part_of_all,
):
"""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