Node.js是如何启动的?

Question

Node.js是如何启动的?

yorkie opened this issue 11 years ago · comments

在每次安装node，我指的是install from source的时候，我们都是通过./configure来执行joyent/node下的configure文件作为开始的，下面简单地说一说node究竟在configure下了多大功夫吧。

查看这个文件可以从第637行开始看起：

通过output来声明一个默认的配置属性，然后通过调用：

configure_node(output)
configure_libz(output)
configure_http_parser(output)
configure_cares(output)
configure_libuv(output)
configure_v8(output)
configure_openssl(output)
configure_winsdk(output)

给output初始化，在每一个配置函数中给相应的依赖软件添加配置项，方便后面将这些软件集成到Node程序中。

configure_node: 定义了一些关于操作系统的相关的参数配置
configure_libz: 定义了与zlib相关的参数配置，zlib是提供数据压缩用的函式库，代码在deps/zlib中。
configure_http_parser: 用于解析HTTP报文的一个C函数库，代码同样在node的deps目录下可以找到，以下类似。
...

下面我们将注意力转到代码的第663行，pprint.pprint(output, indent=2)，这段代码打印了我们当前的所有配置信息，本人clone了node v0.10.12的源文件，并在其目录下运行./configure，得到如下输出：

{ 'target_defaults': { 
                       'cflags': [],
                       'default_configuration': 'Release',
                       'defines': ['OPENSSL_NO_SSL2=1'],
                       'include_dirs': [],
                       'libraries': [] },
  'variables': { 'clang': 1,
                 'host_arch': 'x64',
                 'node_install_npm': 'true',
                 'node_prefix': '',
                 'node_shared_cares': 'false',
                 'node_shared_http_parser': 'false',
                 'node_shared_libuv': 'false',
                 'node_shared_openssl': 'false',
                 'node_shared_v8': 'false',
                 'node_shared_zlib': 'false',
                 'node_tag': '',
                 'node_use_dtrace': 'true',
                 'node_use_etw': 'false',
                 'node_use_mdb': 'false',
                 'node_use_openssl': 'true',
                 'node_use_perfctr': 'false',
                 'python': '/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python',
                 'target_arch': 'x64',
                 'uv_parent_path': '/deps/uv/',
                 'uv_use_dtrace': 'true',
                 'v8_enable_gdbjit': 0,
                 'v8_no_strict_aliasing': 1,
                 'v8_use_snapshot': 'true'}}
creating  ./config.gypi
creating  ./config.mk

在输出的最后两行，可以看到这个脚本生成了两个文件：./config.gypi和config.mk，它们将会在makefile中有所用途。

在脚本的最后一行：
subprocess.call([sys.executable, 'tools/gyp_node'] + gyp_args)会执行命令python tools/gyp_node，因此我们需要继续阅读tools/gyp_node中的代码。

代码：tools/gyp_node
分析：这个脚本仍然是一个python脚本，我们可以先从第23行代码入手，从23到倒数第二行的过程中，程序通过判断操作系统类型来生成运行gyp的相关参数，最后通过函数run_gyp来生成。

Node如何启动只是开了个头，不过偶是一个懒惰的人，如果你无意间看到，只希望你一扫而过就行，别太认真。

Yorkie Makoto · Answer 1 · Thu Sep 12 2013 02:18:44 GMT+0800 (China Standard Time)

# 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 := ..
abs_srcdir := $(abspath $(srcdir))

# The name of the builddir.
builddir_name ?= /opt/v0.10.12/out

# 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 ?= Release

# 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 :=



# C++ apps need to be linked with g++.
#
# Note: flock is used to seralize linking. Linking is a memory-intensive
# process so running parallel links can often lead to thrashing.  To disable
# the serialization, override LINK via an envrionment variable as follows:
#
#   export LINK=g++
#
# This will allow make to invoke N linker processes as specified in -jN.
LINK ?= ./gyp-mac-tool flock $(builddir)/linker.lock $(CXX.target)

CC.target ?= $(CC)
CFLAGS.target ?= $(CFLAGS)
CXX.target ?= $(CXX)
CXXFLAGS.target ?= $(CXXFLAGS)
LINK.target ?= $(LINK)
LDFLAGS.target ?= $(LDFLAGS)
AR.target ?= $(AR)

# 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 ?= gcc
CFLAGS.host ?=
CXX.host ?= g++
CXXFLAGS.host ?=
LINK.host ?= g++
LDFLAGS.host ?=
AR.host ?= ar

# 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),?,$1)
unreplace_spaces = $(subst ?,$(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 = -MMD -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.
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)) $(GYP_CFLAGS) $(DEPFLAGS) $(CFLAGS.$(TOOLSET)) -c -o $@ $<

quiet_cmd_cxx = CXX($(TOOLSET)) $@
cmd_cxx = $(CXX.$(TOOLSET)) $(GYP_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<

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 "$@"

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 -af "$<" "$@")

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)

# TODO(thakis): Find out and document the difference between shared_library and
# loadable_module on mac.
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o "$@" $(LD_INPUTS) $(LIBS)

# TODO(thakis): The solink_module rule is likely wrong. Xcode seems to pass
# -bundle -single_module here (for osmesa.so).
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)


# 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 ? 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 ? for
# spaces already and dirx strips the ? 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 2,$(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 "all" target first so it is the default,
# even though we don't have the deps yet.
.PHONY: all
all:

# 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:

TOOLSET := host
# Suffix rules, putting all outputs into $(obj).
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)

# Try building from generated source, too.
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)

$(obj).$(TOOLSET)/%.o: $(obj)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)

TOOLSET := target
# Suffix rules, putting all outputs into $(obj).
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)

# Try building from generated source, too.
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)

$(obj).$(TOOLSET)/%.o: $(obj)/%.c FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cc FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cpp FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cxx FORCE_DO_CMD
    @$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.m FORCE_DO_CMD
    @$(call do_cmd,objc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.mm FORCE_DO_CMD
    @$(call do_cmd,objcxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.S FORCE_DO_CMD
    @$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.s FORCE_DO_CMD
    @$(call do_cmd,cc,1)


ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/cares/cares.target.mk)))),)
  include deps/cares/cares.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/http_parser/http_parser.target.mk)))),)
  include deps/http_parser/http_parser.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/http_parser/test.target.mk)))),)
  include deps/http_parser/test.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/openssl/openssl.target.mk)))),)
  include deps/openssl/openssl.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/uv/libuv.target.mk)))),)
  include deps/uv/libuv.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/uv/run-benchmarks.target.mk)))),)
  include deps/uv/run-benchmarks.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/uv/run-tests.target.mk)))),)
  include deps/uv/run-tests.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/uv/uv_dtrace_header.target.mk)))),)
  include deps/uv/uv_dtrace_header.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/uv/uv_dtrace_provider.target.mk)))),)
  include deps/uv/uv_dtrace_provider.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/js2c.target.mk)))),)
  include deps/v8/tools/gyp/js2c.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/mksnapshot.x64.target.mk)))),)
  include deps/v8/tools/gyp/mksnapshot.x64.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/postmortem-metadata.target.mk)))),)
  include deps/v8/tools/gyp/postmortem-metadata.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/v8.target.mk)))),)
  include deps/v8/tools/gyp/v8.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/v8_base.x64.target.mk)))),)
  include deps/v8/tools/gyp/v8_base.x64.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/v8_nosnapshot.x64.target.mk)))),)
  include deps/v8/tools/gyp/v8_nosnapshot.x64.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/v8_shell.target.mk)))),)
  include deps/v8/tools/gyp/v8_shell.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/v8/tools/gyp/v8_snapshot.target.mk)))),)
  include deps/v8/tools/gyp/v8_snapshot.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,deps/zlib/zlib.target.mk)))),)
  include deps/zlib/zlib.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node.target.mk)))),)
  include node.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_dtrace_header.target.mk)))),)
  include node_dtrace_header.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_dtrace_provider.target.mk)))),)
  include node_dtrace_provider.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_dtrace_ustack.target.mk)))),)
  include node_dtrace_ustack.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_etw.target.mk)))),)
  include node_etw.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_js2c.host.mk)))),)
  include node_js2c.host.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_mdb.target.mk)))),)
  include node_mdb.target.mk
endif
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
    $(findstring $(join ^,$(prefix)),\
                 $(join ^,node_perfctr.target.mk)))),)
  include node_perfctr.target.mk
endif

quiet_cmd_regen_makefile = ACTION Regenerating $@
cmd_regen_makefile = ./tools/gyp_node -fmake --ignore-environment "--toplevel-dir=." -I/opt/v0.10.12/common.gypi -I/opt/v0.10.12/config.gypi "--depth=." "-Goutput_dir=/opt/v0.10.12/out" "--generator-output=/opt/v0.10.12/out" "-Dcomponent=static_library" "-Dlibrary=static_library" node.gyp
Makefile: $(srcdir)/deps/cares/cares.gyp $(srcdir)/common.gypi $(srcdir)/deps/uv/uv.gyp $(srcdir)/deps/http_parser/http_parser.gyp $(srcdir)/deps/zlib/zlib.gyp $(srcdir)/deps/openssl/openssl.gyp $(srcdir)/deps/v8/tools/gyp/v8.gyp $(srcdir)/node.gyp $(srcdir)/deps/v8/build/features.gypi $(srcdir)/deps/v8/build/toolchain.gypi $(srcdir)/config.gypi
    $(call do_cmd,regen_makefile)

# "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

Yorkie Makoto · Answer 2 · Thu Sep 12 2013 02:19:23 GMT+0800 (China Standard Time)

上图是通过configure生成的out/makefile文件的内容