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* kconfig: fix savedefconfig to output empty defconfigMasahiro Yamada2014-09-16-0/+1
| | | | | | | | | | | | Commit 3ff291f371fa9858426774f3732924bacb61ed1c (kconfig: convert Kconfig helper script into a shell script) introduced a minor regression. make alldefconfig; make savedefconfig should create an empty 'defconfig'. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* cc-option: also detect unsupported warnings optionsJeroen Hofstee2014-09-09-2/+2
| | | | | | | | | | | By default clang will echo a warning if a warning option is unknown. Turning warnings into errors when polling for options also catches such cases and prevents passing arguments to the compiler which cause warnings. cc: Masahiro Yamada <yamada.m@jp.panasonic.com> cc: Tom Rini <trini@ti.com> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* README.kconfig: document backward compatibility "make *_config"Masahiro Yamada2014-08-28-0/+1
| | | | | | | | | | Commit 3ff291f371fa9858426774f3732924bacb61ed1c (kconfig: convert Kconfig helper script into a shell script) restored "<board>_config" target for backward compatibility. It should be documented. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Stephen Warren <swarren@nvidia.com>
* scripts: refetch scripts/setlocalversion from Linux 3.16Masahiro Yamada2014-08-28-17/+14
| | | | | | | | Now we have CONFIG_LOCALVERSION and CONFIG_LOCALVERSION_AUTO in Kconfig so we can use scripts/setlocalversion without any adjustment. Copy it from Linux 3.16 as is. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kconfig: convert Kconfig helper script into a shell scriptMasahiro Yamada2014-08-22-405/+260
| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 51148790 added scripts/multiconfig.py written in Python 2 to adjust Kconfig for U-Boot. It has been hard for Python 3 users because Python 2 and Python 3 are not compatible with each other. We are not happy about adding a new host tool dependency (in this case, Python version dependency) for the core build process. After some discussion, we decided to use only basic tools. The script may get a bit more unreadable by shell scripting, but we believe it is worthwhile. In addition, this commit revives "<board>_config" target that is equivalent to "<board>_defconfig" for backwards compatibility. It is annoying to adjust various projects which use U-Boot. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Suggested-by: Igor Grinberg <grinberg@compulab.co.il> Tested-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@ti.com> Cc: Jeroen Hofstee <jeroen@myspectrum.nl> Cc: Stephen Warren <swarren@nvidia.com>
* scripts/Lindent: import from Linux 3.16Masahiro Yamada2014-08-21-0/+18
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* scripts: objdiff: sync with Linux 3.16Masahiro Yamada2014-08-21-28/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Import scripts/objdiff improvements from Linux v3.16, which consists of 7 commits written by me. commit 7fa0e6db3cedc9b70d68a4170f1352e2b1aa0f90 scripts: objdiff: support directories for the augument of record command commit 8ac28bee76eec006aac5ba5c418878a607d53a9b scripts: objdiff: fix a comment commit 8b5d0f20d64f00ffd5685879f8eb3659379f5aaa scripts: objdiff: change the extension of disassembly from .o to .dis commit 18165efa8203a34d82f60a1831ea290e7304c654 scripts: objdiff: improve path flexibility for record command commit 1ecc8e489abfdaa6d8d1689f7ff62fdf1adda30c scripts: objdiff: remove unnecessary code commit 5ab370e91af70d5f1b1dbaec78798a2ff236a2d5 scripts: objdiff: direct error messages to stderr commit fd6e12423311697860f30d10398a0f9eb91977d2 scripts: objdiff: get the path to .tmp_objdiff more simply Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: sync mixed targets handling with Linux 3.16Masahiro Yamada2014-08-21-11/+4
| | | | | | | | | | | | | | | | | | | "make %_config all" was supported for the first time in U-Boot: commit 53bca5ab kbuild: support simultaneous board configuration and "make all" Surprisingly it had not been working in Linux Kernel for a long time. So I sent back the patch to the Linux Kbuild community and it was accepted with a little code improvement, at commit 9319f453. Now, you can do "make defconfig all" or "make %_defconfig all" in Linux too. This commit updates some scripts to fill the code-diff between Linux and U-Boot. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move extra gcc checks to scripts/Makefile.extrawarnMasahiro Yamada2014-08-21-61/+67
| | | | | | | | | | | | | | | | | | This commit was imported from Linux Kernel: commit a86fe353 written by me. W=... provides extra gcc checks. Having such code in scripts/Makefile.build results in the same flags being added to KBUILD_CFLAGS multiple times becuase scripts/Makefile.build is invoked every time Kbuild descends into the subdirectories. Since the top Makefile is already too cluttered, this commit moves all of extra gcc check stuff to a new file scripts/Makefile.extrawarn, which is included from the top Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* tools, scripts: refactor error-out statements of Python scriptsMasahiro Yamada2014-08-21-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In Python, sys.exit() function can also take an object other than an integer. If an integer is given to the argument, Python exits with the return code of it. If a non-integer argument is given, Python outputs it to stderr and exits with the return code of 1. That means, print >> sys.stderr, "Blah Blah" sys.exit(1) is equivalent to sys.exit("Blah Blah") The latter is a useful shorthand. Note: Some error messages in Buildman and Patman were output to stdout. But they should go to stderr. They are also fixed by this commit. This is a nice side effect. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* get_maintainer.pl: add support for scanning multiple MAINTAINERS filesDaniel Schwierzeck2014-08-09-24/+44
| | | | Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* get_maintainer.pl: adapt to U-Boot treeDaniel Schwierzeck2014-08-09-11/+12
| | | | | | | | | Switch core maintainer to Tom Rini. Adapt directory layout for git tree detection. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* get_maintainer.pl: import script from linux 3.15Daniel Schwierzeck2014-08-09-0/+2249
| | | | | Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* kconfig: switch to KconfigMasahiro Yamada2014-07-30-50/+538
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit enables Kconfig. Going forward, we use Kconfig for the board configuration. mkconfig will never be used. Nor will include/config.mk be generated. Kconfig must be adjusted for U-Boot because our situation is a little more complicated than Linux Kernel. We have to generate multiple boot images (Normal, SPL, TPL) from one source tree. Each image needs its own configuration input. Usage: Run "make <board>_defconfig" to do the board configuration. It will create the .config file and additionally spl/.config, tpl/.config if SPL, TPL is enabled, respectively. You can use "make config", "make menuconfig" etc. to create a new .config or modify the existing one. Use "make spl/config", "make spl/menuconfig" etc. for spl/.config and do likewise for tpl/.config file. The generic syntax of configuration targets for SPL, TPL is: <target_image>/<config_command> Here, <target_image> is either 'spl' or 'tpl' <config_command> is 'config', 'menuconfig', 'xconfig', etc. When the configuration is done, run "make". (Or "make <board>_defconfig all" will do the configuration and build in one time.) For futher information of how Kconfig works in U-Boot, please read the comment block of scripts/multiconfig.py. By the way, there is another item worth remarking here: coexistence of Kconfig and board herder files. Prior to Kconfig, we used C headers to define a set of configs. We expect a very long term to migrate from C headers to Kconfig. Two different infractructure must coexist in the interim. In our former configuration scheme, include/autoconf.mk was generated for use in makefiles. It is still generated under include/, spl/include/, tpl/include/ directory for the Normal, SPL, TPL image, respectively. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kconfig: import Kconfig files from Linux 3.16-rc7Masahiro Yamada2014-07-30-0/+24438
| | | | | | | | | | Import - scripts/kconfig/* - include/linux/kconfig.h from Linux 3.16-rc7. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* scripts: add scripts/show-gnu-make to get GNU Make command nameMasahiro Yamada2014-07-29-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | U-Boot is expected to be built on various platforms. We should keep in mind that the command 'make' is not always GNU Make, while all the makefiles are written for GNU Make. For example, on Linux, people generally do: make <board>_config; make But FreeBSD folks do gmake <board>_config; gmake (The command 'make' on FreeBSD is BSD Make, not GNU Make) It is not a good idea to hard-code the command name 'make' in MAKEALL or buildman. They should call this helper script and get the command name for GNU Make. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* scripts: add mailmapper, a tool to create/update mailmap fileMasahiro Yamada2014-07-22-0/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This tool helps to create/update the mailmap file. It runs 'git shortlog' internally and searches differently spelled author names which share the same email address. The author name with the most commits is asuumed to be a canonical real name. If the number of commits from the cananonical name is equal to or greater than 'MIN_COMMITS' (=50), the entry for the cananical name will be output. ('MIN_COMMITS' is used here because we do not want to create a fat mailmap by adding every author with only a few commits.) If there exists a mailmap file specified by the mailmap.file configuration options or '.mailmap' at the toplevel of the repository, it is used as a base file. The base file and the newly added entries are merged together and sorted alphabetically (but the comment block is kept untouched), and then printed to standard output. Usage ----- scripts/mailmapper prints the mailmapping to standard output. scripts/mailmapper > tmp; mv tmp .mailmap will be useful for updating '.mailmap' file. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Merge branch 'master' of git://git.denx.de/u-boot-dmTom Rini2014-06-20-0/+1
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| * Makefile: Support include files for .dts filesSimon Glass2014-06-20-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Linux supports this, and if we are to have compatible device tree files, U-Boot should also. Avoid giving the device tree files access to U-Boot's include/ directory. Only include/dt-bindings is accessible. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | cosmetic: kbuild: clean-up coding style (sync with Linux 3.16-rc1)Masahiro Yamada2014-06-20-41/+40
|/ | | | | | | | | | | Import the following trivial commits from Linux v3.16-rc1: bb66fc6 kbuild: trivial - use tabs for code indent where possible 7eb6e34 kbuild: trivial - remove trailing empty lines 3fbb43d kbuild: trivial - fix comment block indent 38385f8 kbuild: trivial - remove trailing spaces Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move spl/Makefile to scripts/Makefile.splMasahiro Yamada2014-06-11-0/+280
| | | | | | | | | | All files under spl/ and tpl/ are generated during the build process except spl/Makefile. We can simplify clean-rule and git-ignore by moving spl/Makefile to somewhere else. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move cmd_mkimage to scripts/Makefile.libMasahiro Yamada2014-06-05-0/+8
| | | | | | | Because cmd_mkimage is used in various subdirectories, it seems reasonable to define it in scripts/Makefile.lib. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: sync with Linux Kernel v3.15-rc1Masahiro Yamada2014-04-18-7/+184
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit imports Kbuild-related updates from v3.14 to v3.15-rc1. - commit 3d3d6b8474204b6819688c9800774d52d370a538 kbuild: LLVMLinux: Adapt warnings for compilation with clang - commit 61163efae02040f66a95c8ed17f4407951ba58fa kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang - commit 79192ca8ebd9a25c583aa46024a250fef1e7766f scripts: objdiff: detect object code changes between two commits - commit 1c9e70a55b088d97a59241744fe459409d0c3582 kbuild: create a build directory automatically for out-of-tree build - commit a03fcb50e816a69acffb13b5e56db75063aeba8a kbuild: remove redundant '.*.cmd' pattern from make distclean - commit 13338935f1574a2dcd1c891461b0dcc42f8cff42 kbuild: move "quote" to Kbuild.include to be consistent - commit bfdfaeae500a3b194b73b01e92a8034791a58b7f kbuild: specify build_docproc as a phony target - commit f4d4ffc03efc864645b990e1d579bbe1b8e358a4 kbuild: dtbs_install: new make target - commit 1e64ff42ea3d8d2fc8aa71f9717b3c1cb6c2f893 Kbuild, lto: Disable LTO for asm-offsets.c - commit ccbef1674a1579842c7dbdf554efca85d2cd245a Kbuild, lto: add ld-version and ld-ifversion macros - commit ae63b2d7bdd9bd66b88843be0daf8e37d8f0b574 scripts/tags.sh: Ignore *.mod.c - commit e36aaea28972c57a32a3ba5365e61633739719b9 kbuild: Fix silent builds with make-4 Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: fix bugs in cleaning targetsMasahiro Yamada2014-03-28-1/+2
| | | | | | | | | "make clean", "make clobber", "make mrproper" and "make distclean" missed to clean-up some files when they were run with O=<some_dir> option. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Wolfgang Denk <wd@denx.de>
* kbuild: improve Kbuild speedMasahiro Yamada2014-03-07-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
* scripts: update checkpatch.pl to latest upstream versionTom Rini2014-03-04-208/+1067
| | | | | | | | | | Update to v3.14-rc4's version of checkpatch.pl. In doing so we drop the changes to top_of_kernel_tree() as we pass in --no-tree and drop our changes about MAINTAINERS as that's for reporting checkpatch.pl problems itself (and upstream has said they'll reword this section to be clearer). Signed-off-by: Tom Rini <trini@ti.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2014-02-26-0/+5
|\ | | | | | | | | | | | | | | | | Conflicts: arch/arm/cpu/armv7/config.mk board/ti/am43xx/mux.c include/configs/am43xx_evm.h Signed-off-by: Tom Rini <trini@ti.com>
| * checkpatch.pl: Add warning for new __packed additionsTom Rini2014-02-26-0/+5
| | | | | | | | | | | | | | While there are valid reasons to use __packed, often the answer is that you should be doing something else here instead. Signed-off-by: Tom Rini <trini@ti.com>
* | kbuild: consolidate version and timestamp headers generationMasahiro Yamada2014-02-25-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Generate include/generated/{timestamp.h, version.h} more simply by using filechk rule. - Add $(UBOOTRELEASE) variable and re-write u-boot.imx rule more simply. - Rename U_BOOT_VERSION in Makefile to UBOOTVERSION Before this commit, the same variable name, "U_BOOT_VERSION" was used for two different strings. One of them was defined in Makefile. It takes the form like "2014.01-rc1" and used in makefiles and script files. The other is defined in include/generated/version.h It takes the form like "U-Boot 2014.01-rc1-00010-gbe6d426-dirty" and used in C and Aseembler. It is confusing when grepping the source tree. So, this commit renames the former to UBOOTVERSION. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | Makefile: add a new script to check -fstack-usage supportMasahiro Yamada2014-02-25-0/+18
|/ | | | | | | | | | | If -fstack-usage option is given to crosstools that do not support it, gcc displays a warning message but still exits with status 0. This means we can not rely on $(call cc-option,...) to detect if -fstack-usage option is supported or not. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* dts: move device tree sources to arch/$(ARCH)/dts/Masahiro Yamada2014-02-19-1/+0
| | | | | | | | | | | | | | | | | Unlike Linux Kernel, U-Boot historically had *.dts files under board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/. I think arch/$(ARCH)/dts dicretory is a better location to store both *.dts and *.dtsi files. For example, before this commit, board/xilinx/dts directory had both Microblaze dts (microblaze-generic.dts) and ARM dts (zynq-*.dts), which are totally unrelated. This commit moves *.dts to arch/$(ARCH)/dts/ directories, allowing us to describe nicely mutiple DTBs generation in the next commit. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* dts: re-write dts/Makefile more simply with KbuildMasahiro Yamada2014-02-19-6/+6
| | | | | | | | | | | Useful rules in scripts/Makefile.lib allows us to easily generate a device tree blob and wrap it in assembly code. We do not need to parse a linker script to get output format and arch. This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kernel-doc: update kernel-doc related files to Linux v3.13Masahiro Yamada2014-02-19-45/+101
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kernel-doc: move kernel-doc tools to scripts/Masahiro Yamada2014-02-19-0/+3151
| | | | | | | | | | | | tools/kernel-doc/docproc.c and tools/kernel-doc/kernel-doc are files imported from Linux Kernel. They originally resided under scripts/ directory in Linux Kernel. This commit moves them to the original location. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kbuild: Do not generate .*.su files at the top directoryMasahiro Yamada2014-02-19-1/+3
| | | | | | | | Without this workaround, you will see a lot of ".*.su" files at the top directory after building with a compiler which supports "-fstack-usage" option. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use scripts/Makefile.cleanMasahiro Yamada2014-02-19-0/+6
| | | | | | | | | | | | | | This commit refactors cleaning targets such as clean, clobber, mrpropper, distclean with scripts/Makefile.clean. By using scripts/Makefile.clean, we can recursively descend into subdirectories and delete generated files there. We do not need add a big list of generated files to the "clean" target. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move include directives of board configuration filesMasahiro Yamada2014-02-19-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the location of include directives of board configuration files. The purpose of this change is: - Slim down $(TOPDIR)/config.mk - Prevent $(TOPDIR)/Makefile from including the same configuration file twice - Do not include include/config.mk multiple times because ARCH, CPU, BOARD, VENDOR, SOC are exported Before this commit: - include/autoconf.mk was included from $(TOPDIR)/Makefile and $(TOPDIR)/config.mk (This means $(TOPDIR)/Makefile included include/autoconf.mk twice) - include/{spl,tpl}-autoconf.mk was included from $(TOPDIR)/config.mk - include/config.mk was included from $(TOPDIR)/Makefile and $(TOPDIR)/config.mk (This means $(TOPDIR)/Makefile included include/config.mk twice) After this commit: - include/autoconf.mk is included from $(TOPDIR)/Makefile and $(TOPDIR)/scripts/Makefile.build - include/{spl,tpl}-autoconf.mk is included from $(TOPDIR)/spl/Makefile and $(TOPDIR)/scripts/Makefile.build - include/config.mk is included from $(TOPDIR)/config.mk and $(TOPDIR)/spl/Makefile Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: delete temporary build scriptsMasahiro Yamada2014-02-19-188/+0
| | | | | | | We had switched to Kbuild. We do not need old build scripts any more. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-10/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* kbuild: import more build scripts from Linux v3.13 tagMasahiro Yamada2014-02-19-0/+1663
| | | | | | | | | | This commit imports build scripts from Linux Kernel v3.13 as they are. I know they include some trailing spaces but I am intentionally keeping them untouched. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: rename scripts/Makefile.build to scripts/Makefile.build.tmpMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | | | Some build scripts including scripts/Makefile.build will be imported from Linux Kernel in the next commit. We need to adjust them for U-Boot in the following commits. To make it easier for reviewers to track the modification, this commit renames scripts/Makefile.build to scripts/Makefile.build.tmp beforehand. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: change out-of-tree buildMasahiro Yamada2014-02-19-32/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* kbuild: Use Kbuild.includeMasahiro Yamada2014-02-19-1/+8
| | | | | | | | | | | | | | | | This commit adjusts some files to use Kbuild.include. - Use cc-option defined in Kbuild.include (Delete cc-option in config.mk) - Use cc-version defined in (Delete cc-version in config.mk) - Move binutils-version and dtc-version to Kbuild.include by analogy to cc-version This commit also adds srctree (same as SRCTREE) to use Kbuild scripts. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: import Kbuild.include from linux v3.13 tagMasahiro Yamada2014-02-19-0/+278
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makfile: move suffix rules to Makefile.buildMasahiro Yamada2014-02-19-0/+31
| | | | | | | | | | | | | | | | | | | This commit moves suffix rules from config.mk to scripts/Makefile.build, which will allow us to switch smoothly to real Kbuild. Note1: post/lib_powerpc/fpu/Makefile has its own rule to compile C sources. We need to tweak it to keep the same behavior. Note2: There are two file2 with the same name: arch/arm/lib/crt0.S and eamples/api/crt0.S. To keep the same build behavior, examples/api/Makefile also has to be treaked. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* examples: Use scripts/Makefile.buildMasahiro Yamada2014-02-19-3/+4
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile.host.tmp: add a new script to refactor toolsMasahiro Yamada2014-02-19-3/+75
| | | | | | | | | | | | | | This commit adds scripts/Makefile.host.tmp which will be used in the next commit to convert makefiles under tools/ directory to Kbuild style. Notice this script, scripts/Makefile.host.tmp is temporary. When switching over to real Kbuild, it will be replaced with scripts/Makefile.host of Linux Kernel. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: Move some scripts imported from LinuxMasahiro Yamada2013-12-13-0/+4387
| | | | | | | | | | | | | | | | | We have some scripts imported from Linux Kernel: setlocalversion, checkstack.pl, checkpatch.pl, cleanpatch They are located under tools/ directory in U-Boot now. But they were originally located under scripts/ directory in Linux Kernel. This commit moves them to the original location. It is true that binutils-version.sh and dtc-version.sh do not originate in Linux Kernel, but they should be moved by analogy to gcc-version.sh. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: make directories by Makefile.buildMasahiro Yamada2013-11-17-0/+7
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: abolish COBJS, SOBJS, etc.Masahiro Yamada2013-11-17-8/+4
| | | | | | | | The support for COBJS, COBJS-y, SOBJS, SOBJS-y, GLCOBJS, GLSOBJS from scripts/Makefile.build. Going forward we need to use Kbuild style consistently. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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