Ubuntu16.04 openJDK 8编译问题
bash ./configure --with-debug-level=slowdebug
执行结束后
A new configuration has been successfully created in
/home/lzw/Documents/jvm/openjdk/build/linux-x86_64-normal-server-slowdebug
using configure arguments '--with-debug-level=slowdebug'.
Configuration summary:
* Debug level: slowdebug
* JDK variant: normal
* JVM variants: server
* OpenJDK target: OS: linux, CPU architecture: x86, address length: 64
Tools summary:
* Boot JDK: java version "1.7.0_95" OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-3) OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode) (at /usr/lib/jvm/java-7-openjdk-amd64)
* C Compiler: gcc-5 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 version 20160609 (at /usr/bin/gcc-5)
* C++ Compiler: g++-5 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 version 20160609 (at /usr/bin/g++-5)
Build performance summary:
* Cores to use: 4
* Memory limit: 5966 MB
* ccache status: installed, but disabled (version older than 3.1.4)
然后
make
出现
make: Nothing to be done for 'default'.
搜索了之后
发现问题应该Makefile文件tab缩进的问题
但是openjdk的Makefile文件着实有点复杂，不知从何下手。希望有经验的同学能指点一下
Makefile
#
# Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation. Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#
# This must be the first rule
default:
# Inclusion of this pseudo-target will cause make to execute this file
# serially, regardless of -j. Recursively called makefiles will not be
# affected, however. This is required for correct dependency management.
.NOTPARALLEL:
# The shell code below will be executed on /usr/ccs/bin/make on Solaris, but not in GNU make.
# /usr/ccs/bin/make lacks basically every other flow control mechanism.
TEST_FOR_NON_GNUMAKE:sh=echo You are not using GNU make/gmake, this is a requirement. Check your path. 1>&2 && exit 1
# Assume we have GNU make, but check version.
ifeq ($(strip $(foreach v, 3.81% 3.82% 4.%, $(filter $v, $(MAKE_VERSION)))), )
$(error This version of GNU Make is too low ($(MAKE_VERSION)). Check your path, or upgrade to 3.81 or newer.)
endif
# Locate this Makefile
ifeq ($(filter /%,$(lastword $(MAKEFILE_LIST))),)
makefile_path:=$(CURDIR)/$(lastword $(MAKEFILE_LIST))
else
makefile_path:=$(lastword $(MAKEFILE_LIST))
endif
root_dir:=$(dir $(makefile_path))
# ... and then we can include our helper functions
include $(root_dir)/make/MakeHelpers.gmk
$(eval $(call ParseLogLevel))
$(eval $(call ParseConfAndSpec))
# Now determine if we have zero, one or several configurations to build.
ifeq ($(SPEC),)
# Since we got past ParseConfAndSpec, we must be building a global target. Do nothing.
else
ifeq ($(words $(SPEC)),1)
# We are building a single configuration. This is the normal case. Execute the Main.gmk file.
include $(root_dir)/make/Main.gmk
else
# We are building multiple configurations.
# First, find out the valid targets
# Run the makefile with an arbitrary SPEC using -p -q (quiet dry-run and dump rules) to find
# available PHONY targets. Use this list as valid targets to pass on to the repeated calls.
all_phony_targets=$(filter-out $(global_targets) bundles bundles-only final-images-only, $(strip $(shell
cd $(root_dir) && $(MAKE) -p -q FRC SPEC=$(firstword $(SPEC)) |
grep ^.PHONY: | head -n 1 | cut -d " " -f 2-)))
$(all_phony_targets):
@$(foreach spec,$(SPEC),(cd $(root_dir) && $(MAKE) SPEC=$(spec)
$(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $@) &&) true
.PHONY: $(all_phony_targets)
endif
endif
# Include this after a potential spec file has been included so that the bundles target
# has access to the spec variables.
include $(root_dir)/make/Jprt.gmk
# Here are "global" targets, i.e. targets that can be executed without specifying a single configuration.
# If you addd more global targets, please update the variable global_targets in MakeHelpers.
help:
$(info )
$(info OpenJDK Makefile help)
$(info =====================)
$(info )
$(info Common make targets)
$(info . make [default] # Compile all product in langtools, hotspot, jaxp, jaxws,)
$(info . # corba and jdk)
$(info . make all # Compile everything, all repos and images)
$(info . make images # Create complete j2sdk and j2re images)
$(info . make docs # Create javadocs)
$(info . make overlay-images # Create limited images for sparc 64 bit platforms)
$(info . make profiles # Create complete j2re compact profile images)
$(info . make bootcycle-images # Build images twice, second time with newly build JDK)
$(info . make install # Install the generated images locally)
$(info . make clean # Remove all files generated by make, but not those)
$(info . # generated by configure)
$(info . make dist-clean # Remove all files, including configuration)
$(info . make help # Give some help on using make)
$(info . make test # Run tests, default is all tests (see TEST below))
$(info )
$(info Targets for specific components)
$(info (Component is any of langtools, corba, jaxp, jaxws, hotspot, jdk, nashorn, images, overlay-images, docs or test))
$(info . make <component> # Build <component> and everything it depends on. )
$(info . make <component>-only # Build <component> only, without dependencies. This)
$(info . # is faster but can result in incorrect build results!)
$(info . make clean-<component> # Remove files generated by make for <component>)
$(info )
$(info Useful make variables)
$(info . make CONF= # Build all configurations (note, assignment is empty))
$(info . make CONF=<substring> # Build the configuration(s) with a name matching)
$(info . # <substring>)
$(info )
$(info . make LOG=<loglevel> # Change the log level from warn to <loglevel>)
$(info . # Available log levels are:)
$(info . # 'warn' (default), 'info', 'debug' and 'trace')
$(info . # To see executed command lines, use LOG=debug)
$(info )
$(info . make JOBS=<n> # Run <n> parallel make jobs)
$(info . # Note that -jN does not work as expected!)
$(info )
$(info . make test TEST=<test> # Only run the given test or tests, e.g.)
$(info . # make test TEST="jdk_lang jdk_net")
$(info )
.PHONY: help
