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* Validate dtc is new enoughStephen Warren2013-08-02-0/+1
| | | | | | | | | Subsequent patches assume that dtc supports various recent features. These are available in dtc 1.4.0. Validate that dtc is at least that version. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* Licenses: introduce SPDX Unique Lincense IdentifiersWolfgang Denk2013-07-24-19/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like many other projects, U-Boot has a tradition of including big blocks of License headers in all files. This not only blows up the source code with mostly redundant information, but also makes it very difficult to generate License Clearing Reports. An additional problem is that even the same lincenses are referred to by a number of slightly varying text blocks (full, abbreviated, different indentation, line wrapping and/or white space, with obsolete address information, ...) which makes automatic processing a nightmare. To make this easier, such license headers in the source files will be replaced with a single line reference to Unique Lincense Identifiers as defined by the Linux Foundation's SPDX project [1]. For example, in a source file the full "GPL v2.0 or later" header text will be replaced by a single line: SPDX-License-Identifier: GPL-2.0+ We use the SPDX Unique Lincense Identifiers here; these are available at [2]. Note: From the legal point of view, this patch is supposed to be only a change to the textual representation of the license information, but in no way any change to the actual license terms. With this patch applied, all files will still be licensed under the same terms they were before. Note 2: The apparent difference between the old "COPYING" and the new "Licenses/gpl-2.0.txt" only results from switching to the upstream version of the license which is differently formatted; there are not any actual changes to the content. Note 3: There are some recurring questions about linense issues, such as: - Is a "All Rights Reserved" clause a problem in GPL code? - Are files without any license header a problem? - Do we need license headers at all? The following excerpt from an e-mail by Daniel B. Ravicher should help with these: | Message-ID: <4ADF8CAA.5030808@softwarefreedom.org> | Date: Wed, 21 Oct 2009 18:35:22 -0400 | From: "Daniel B. Ravicher" <ravicher@softwarefreedom.org> | To: Wolfgang Denk <wd@denx.de> | Subject: Re: GPL and license cleanup questions | | Mr. Denk, | | Wolfgang Denk wrote: | > - There are a number of files which do not include any specific | > license information at all. Is it correct to assume that these files | > are automatically covered by the "GPL v2 or later" clause as | > specified by the COPYING file in the top level directory of the | > U-Boot source tree? | | That is a very fact specific analysis and could be different across the | various files. However, if the contributor could reasonably be expected | to have known that the project was licensed GPLv2 or later at the time | she made her contribution, then a reasonably implication is that she | consented to her contributions being distributed under those terms. | | > - Do such files need any clean up, for example should we add GPL | > headers to them, or is this not needed? | | If the project as a whole is licensed under clear terms, you need not | identify those same terms in each file, although there is no harm in | doing so. | | > - There are other files, which include both a GPL license header | > _plus_ some copyright note with an "All Rights Reserved" clause. It | > has been my understanding that this is a conflict, and me must ask | > the copyright holders to remove such "All Rights Reserved" clauses. | > But then, some people claim that "All Rights Reserved" is a no-op | > nowadays. License checking tools (like OSLC) seem to indicate this is | > a problem, but then we see quite a lot of "All rights reserved" in | > BSD-licensed files in gcc and glibc. So what is the correct way to | > deal with such files? | | It is not a conflict to grant a license and also reserve all rights, as | implicit in that language is that you are reserving all "other" rights | not granted in the license. Thus, a file with "Licensed under GPL, All | Rights Reserved" would mean that it is licensed under the GPL, but no | other rights are given to copy, modify or redistribute it. | | Warm regards, | --Dan | | Daniel B. Ravicher, Legal Director | Software Freedom Law Center (SFLC) and Moglen Ravicher LLC | 1995 Broadway, 17th Fl., New York, NY 10023 | (212) 461-1902 direct (212) 580-0800 main (212) 580-0898 fax | ravicher@softwarefreedom.org www.softwarefreedom.org [1] http://spdx.org/ [2] http://spdx.org/licenses/ Signed-off-by: Wolfgang Denk <wd@denx.de>
* mkimage: Use board config to get CONFIG_FIT_SIGNATURE valueSimon Glass2013-07-19-0/+4
| | | | | | | | The value of this config variable is not available to image.h on the host, since the board config is not actually included. Bring this in so that mkimage will be built with image-signing support for sandbox at least. Signed-off-by: Simon Glass <sjg@chromium.org>
* mkimage: Build signing only if board has CONFIG_FIT_SIGNATURESimon Glass2013-06-28-1/+5
| | | | | | | | | | | | | | | | At present mkimage is set up to always build with image signing support. This means that the SSL libraries (e.g. libssl-dev) are always required. Adjust things so that mkimage can be built with and without image signing, controlled by the presence of CONFIG_FIT_SIGNATURE in the board config file. If CONFIG_FIT_SIGNATURE is not enabled, then mkimage will report a warning that signing is not supported. If the option is enabled, but libraries are not available, then a build error similar to this will be shown: lib/rsa/rsa-sign.c:26:25: fatal error: openssl/rsa.h: No such file or directory Signed-off-by: Simon Glass <sjg@chromium.org>
* image: Add RSA support for image signingSimon Glass2013-06-26-0/+1
| | | | | | | | | | | | | | RSA provides a public key encryption facility which is ideal for image signing and verification. Images are signed using a private key by mkimage. Then at run-time, the images are verified using a private key. This implementation uses openssl for the host part (mkimage). To avoid bringing large libraries into the U-Boot binary, the RSA public key is encoded using a simple numeric representation in the device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
* Support tracing in config.mk when enabledSimon Glass2013-06-26-1/+10
| | | | | | | | | | | Use -finstrument-functions when tracing is enabled (make FTRACE=1). Tracing is not currently supported by SPL even if sufficient memory is available. When tracing is enabled, we #define FTRACE. This can be used by board config files to conditionally enable the tracing options. Signed-off-by: Simon Glass <sjg@chromium.org>
* build: Pull -DBUILD_TAG into separate ifdefMarek Vasut2013-05-09-4/+3
| | | | | | | | | | | | Currently the base setting for CFLAGS is split in two possibilities, one with -DBUILD_TAG appended at the end and one without, the rest of CFLAGS is the same in both cases. Change this so CFLAGS are always set and the -DBUILD_TAG is appended in separate ifdef. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Tom Rini <trini@ti.com> Reviewed-by: Otavio Salvador <otavio@ossystems.com.br>
* Trigger generic board error only when buildingSimon Glass2013-05-01-2/+2
| | | | | | | | | | | | | | | | At present the generic board error can occur when configuring U-Boot, or during distclean, but this is incorrect. The existing autoconf.mk may come from an earlier U-Boot configuration which is about to be overwritten. Make the error conditional so that it will only be triggered when we are actually building U-Boot. This avoids a problem where the system is being reconfigured to remove CONFIG_SYS_GENERIC_BOARD on an architecture that does not support it. Currently this will print an error and require the manual removal of include/autoconf.mk. Signed-off-by: Simon Glass <sjg@chromium.org>
* Makefile: Add target for combined u-boot.img & spl/u-boot.binStefan Roese2013-04-22-0/+4
| | | | | | | | | | | | This new make target "u-boot-img-spl-at-end.bin" consists of the the real, full-blown U-Boot image and the U-Boot SPL binary directly attached to it. The full-blown U-Boot image has the mkimage header included, with its load-address and entry-point. This will be used by the upcoming lwmon5 PPC440EPx derivate board port. Signed-off-by: Stefan Roese <sr@denx.de>
* Makefile: Move SHELL setup to config.mkBenoît Thébaudeau2013-04-12-0/+7
| | | | | | | | | | | | | | | | | | make never uses the SHELL variable from the environment. Instead, it uses /bin/sh, or the value assigned to the SHELL variable by the Makefile. This makes the export of the SHELL variable useless for sub-makes (but still useful for the environment of recipes). However, we want all makes to use the same shell. This patch fixes this issue by moving the SHELL variable setup and export to the top config.mk, so that all Makefile-s including it use the same shell. Since BASH is used by default, this makes it possible to use things like 'echo -e ...' in sub-makes, which would otherwise fail e.g. with /bin/sh symlinked to /bin/dash on Ubuntu. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Reviewed-by: Tom Rini <trini@ti.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2013-03-18-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
| * Refactor linker-generated arraysAlbert ARIBAUD2013-03-12-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor linker-generated array code so that symbols which were previously linker-generated are now compiler- generated. This causes relocation records of type R_ARM_ABS32 to become R_ARM_RELATIVE, which makes code which uses LGA able to run before relocation as well as after. Note: this affects more than ARM targets, as linker- lists span possibly all target architectures, notably PowerPC. Conflicts: arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds arch/arm/cpu/armv7/omap-common/u-boot-spl.lds board/ait/cam_enc_4xx/u-boot-spl.lds board/davinci/da8xxevm/u-boot-spl-da850evm.lds board/davinci/da8xxevm/u-boot-spl-hawk.lds board/vpac270/u-boot-spl.lds Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* | __HAVE_ARCH_GENERIC_BOARD controls availabilty of generic boardSimon Glass2013-03-15-0/+8
|/ | | | | | | | | | | We are introducing a new unified board setup. Add a check to make sure that board config files do not define CONFIG_SYS_GENERIC_BOARD unless their architecture defines __HAVE_ARCH_GENERIC_BOARD __HAVE_ARCH_GENERIC_BOARD will currently not be the default setting, but we can switch this later when most architecture support generic board. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Add symbol handling for generic lists into MakefileMarek Vasut2012-10-22-0/+2
| | | | | | | | | | | | | | | | | | | | | | | This patch adds essential components for generation of the contents of the linker section that is used by the linker-generated array. All of the contents is held in a separate file, u-boot.lst, which is generated at runtime just before U-Boot is linked. The purpose of this code is to especially generate the appropriate boundary symbols around each subsection in the section carrying the linker-generated arrays. Obviously, the interim linker code for actual placement of the variables into the section is generated too. The generated file, u-boot.lst, is included into u-boot.lds via the linker INCLUDE directive in u-boot.lds . Adjustments are made in the Makefile and spl/Makefile so that the u-boot.lds and u-boot-spl.lds depend on their respective .lst files. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Tested-by: Joe Hershberger <joe.hershberger@ni.com>
* add check infrastructure, default sparseKim Phillips2012-10-15-0/+8
| | | | | | | | | | Add support for running source code checkers on u-boot source, e.g., using sparse to aid with typechecking. This comes in especially handy as SoC vendors mix and match cores and devices with different endianness, thus here we add CHECK_ENDIAN to the otherwise linux kernel default CHECKFLAGS. Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* serial: Compile drivers/serial/serial.c by defaultMarek Vasut2012-10-15-1/+1
| | | | | | | | | | | | | Compile drivers/serial/serial.c by default both into SPL and into non-SPL builds, since CONFIG_SERIAL_MULTI is now the default state. Also having common/serial.c in by default now, it's pointless to keep -DCONFIG_SERIAL_MULTI in CPPFLAGS any longer, so remove it as well. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Tom Rini <trini@ti.com> Cc: Anatolij Gustschin <agust@denx.de> Cc: Stefan Roese <sr@denx.de>
* serial: Unconditionally enable CONFIG_SERIAL_MULTIMarek Vasut2012-10-15-1/+1
| | | | | | | | | | | | | Enable CONFIG_SERIAL_MULTI for all builds of U-Boot. That includes both SPL builds and non-SPL builds, everything. To avoid poluting this patch with removal of ifdef-endif constructions containing CONFIG_SERIAL_MULTI, the CONFIG_SERIAL_MULTI is temporarily added into CPPFLAGS in config.mk . This will be again removed in following patch. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Tom Rini <trini@ti.com>
* tools, config.mk: add binutils-versionAllen Martin2012-10-04-0/+1
| | | | | | | Modeled after gcc-version, add function to get binutils version. Signed-off-by: Allen Martin <amartin@nvidia.com> Acked-by: Wolfgang Denk <wd@denx.de>
* config: Always use GNU ldKhem Raj2012-08-10-1/+5
| | | | | | | | | | | | | | | | | | This patch makes sure that we always use the GNU ld. U-Boot uses certain construct e.g. OVERLAY which are not implemented in gold therefore it always needs GNU ld for linking. It works well if default linker in toolchain is GNU ld but in some cases we can have gold to be the default linker and also ship GNU ld but not as default in such cases its called $(PREFIX)ld.bfd, with this patch we make sure that if $(PREFIX)ld.bfd exists than we use that for our ld. This way it does not matter what the default ld is. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Khem Raj <raj.khem@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* Makefile: Add u-boot.spr build target (SPEAr)Stefan Roese2012-07-07-0/+4
| | | | | | | | | | | | | On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. Both images are created using mkimage (crc etc), so that the ROM bootloader can check its integrity. Padding needs to be done to the SPL image (with mkimage header) and not the binary. Otherwise the resulting image which is loaded/copied by the ROM bootloader to SRAM doesn't fit. The resulting image containing both U-Boot images is called u-boot.spr. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Amit Virdi <amit.virdi@st.com> Cc: Vipin Kumar <vipin.kumar@st.com>
* tools, config.mk: Add gcc-version.sh, cc-version test from LinuxTom Rini2012-05-15-1/+5
| | | | | | Added from Linux - commit fde7d9049e55ab85a390be7f415d74c9f62dd0f9 Signed-off-by: Tom Rini <trini@ti.com>
* config.mk: Check for -fstack-usage supportTom Rini2012-03-26-0/+4
| | | | | Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Tom Rini <trini@ti.com>
* config.mk: Make cc-option create a file under include/generatedTom Rini2012-03-26-4/+3
| | | | | | | Testing for -fstack-usage requires the creation of an output file, which isn't possible with /dev/null. Signed-off-by: Tom Rini <trini@ti.com>
* config.mk: use memoization in cc-option macro to speed up compilationDaniel Schwierzeck2011-11-07-2/+18
| | | | | | | | | | | Apply memoization to cc-option macro by caching the results of the gcc calls. This macro is called very often so using cached results leads to faster compilation times. The old behaviour can be restored by defining the config option CONFIG_CC_OPT_CACHE_DISABLE=y. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* Reduce build timesWolfgang Denk2011-11-03-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | U-Boot Makefiles contain a number of tests for compiler features etc. which so far are executed again and again. On some architectures (especially ARM) this results in a large number of calls to gcc. This patch makes sure to run such tests only once, thus largely reducing the number of "execve" system calls. Example: number of "execve" system calls for building the "P2020DS" (Power Architecture) and "qong" (ARM) boards, measured as: -> strace -f -e trace=execve -o /tmp/foo ./MAKEALL <board> -> grep execve /tmp/foo | wc -l Before: After: Reduction: ================================== P2020DS 20555 15205 -26% qong 31692 14490 -54% As a result, built times are significantly reduced, typically by 30...50%. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Andy Fleming <afleming@gmail.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Albert Aribaud <albert.aribaud@free.fr> cc: Graeme Russ <graeme.russ@gmail.com> cc: Mike Frysinger <vapier@gentoo.org> Tested-by: Graeme Russ <graeme.russ@gmail.com> Tested-by: Matthias Weisser <weisserm@arcor.de> Tested-by: Sanjeev Premi <premi@ti.com> Tested-by: Simon Glass <sjg@chromium.org> Tested-by: Macpaul Lin <macpaul@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* fdt: Add support for embedded device tree (CONFIG_OF_EMBED)Simon Glass2011-10-26-0/+1
| | | | | | | | | | | | | | | | | This new option allows U-Boot to embed a binary device tree into its image to allow run-time control of peripherals. This device tree is for U-Boot's own use and is not necessarily the same one as is passed to the kernel. The device tree compiler output should be placed in the $(obj) rooted tree. Since $(OBJCOPY) insists on adding the path to the generated symbol names, to ensure consistency it should be invoked from the directory where the .dtb file is located and given the input file name without the path. This commit contains my entry for the ugliest Makefile / shell interaction competition. Signed-off-by: Simon Glass <sjg@chromium.org>
* build: force migration away from $(AR)Mike Frysinger2011-10-22-5/+3
| | | | | | | | | People keep adding new code that still uses $(AR) instead of $(cmd_link_o_target), so turn it into a build time error. We still use $(AR) locally, but we don't use $(ARFLAGS). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Adjust dependency rules to permit per-file flagsSimon Glass2011-10-17-0/+7
| | | | | | | | | | | | | | The dependency rules are currently done in a shell 'for' loop. This does not permit Makefile variables to adjust preprocessor flags as is done with normal compile flags, using the CFLAGS_path/file.o syntax. This change moves the dependency generation into the Makefile itself, and permits a CPPFLAGS_path/file.o to adjust preprocessor flags on a file or directory basis. The CPPFLAGS_... variable is also folded into CFLAGS during the build. Signed-off-by: Simon Glass <sjg@chromium.org>
* disable security warning flags when possibleMike Frysinger2011-07-26-0/+4
| | | | | | | | | | | | Some toolchains enable security warning flags by default, but these don't really make sense in the u-boot world. Such as forcing changes like: -printf(foo); +printf("%s", foo); So disable the flags when the compiler supports them. Linux has already merged a similar change in their build system. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Extend build-system for SPL frameworkDaniel Schwierzeck2011-07-26-1/+33
| | | | | Signed-off-by: Aneesh V <aneesh@ti.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* config.mk: move LDSCRIPT processing to the top-level MakefileIlya Yanok2011-06-22-30/+0
| | | | | | | | | | LDSCRIPT is used only from the top-level Makefile and only when the system is configured so we can move LDSCRIPT and CONFIG_SYS_LDSCRIPT related logic into the top level Makefile and under configured condition to avoid errors when building tools from unconfigured tree. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* Handle most LDSCRIPT setting centrallyScott Wood2011-04-30-5/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, some linker scripts are found by common code in config.mk. Some are found using CONFIG_SYS_LDSCRIPT, but the code for that is sometimes in arch config.mk and sometimes in board config.mk. Some are found using an arch-specific rule for looking in CPUDIR, etc. Further, the powerpc config.mk rule relied on CONFIG_NAND_SPL when it really wanted CONFIG_NAND_U_BOOT -- which covered up the fact that not all NAND_U_BOOT builds actually wanted CPUDIR/u-boot-nand.lds. Replace all of this -- except for a handful of boards that are actually selecting a linker script in a unique way -- with centralized ldscript finding. If board code specifies LDSCRIPT, that will be used. Otherwise, if CONFIG_SYS_LDSCRIPT is specified, that will be used. If neither of these are specified, then the central config.mk will check for the existence of the following, in order: $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT) $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT) $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds $(TOPDIR)/$(CPUDIR)/u-boot.lds Some boards (sc3, cm5200, munices) provided their own u-boot.lds that were dead code, because they were overridden by a CPUDIR u-boot.lds under the old powerpc rules. These boards' own u-boot.lds have bitrotted and no longer work -- these lds files have been removed. Signed-off-by: Scott Wood <scottwood@freescale.com> Tested-by: Graeme Russ <graeme.russ@gmail.com>
* Introduce a new linker flag LDFLAGS_FINALHaiying Wang2011-03-22-1/+2
| | | | | | | | | | | | | | | commit 8aba9dceebb14144e07d19593111ee3a999c37fc Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS breaks the usage of --gc-section to build nand_spl. We still need linker option --gc-section for every uboot image, not only the main one. LDFLAGS_FINAL passes the --gc-sections to each uboot image. To get the proper linker flags, we use LDFLAGS and LDFLAGS_FINAL to replace PLATFORM_LDFLAGS in the Makefile of each nand_spl board. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
* Top config.mk: add include/config.mkJoakim Tjernlund2011-03-21-0/+1
| | | | | | | | Seems to me that the top level config.mk should include the auto generated include/config.mk so that all Makefile's pickup those definitions. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
* Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGSNobuhiro Iwamatsu2011-01-25-3/+5
| | | | | | | | | | Linker needs to use the proper endian/bfd flags even when doing partial linking. LDFLAGS_u-boot sets linker option which is called it when U-boot is built (u-boot final). LDFLAGS sets necessary option by partial linking (use in cmd_link_o_target). CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* config.mk: unify duplicated flag settingMike Frysinger2010-12-17-10/+7
| | | | | | | | | | Multiple rules are using the expanded AFLAGS/CFLAGS settings and some are getting so long that the rules need to be line wrapped. So unify them in one variable, use that variable in the rule, and then unwrap things. This makes the actual `make` output nicer as it doesn't have line continuations in it anymore. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Coding Style (white space) cleanupWolfgang Denk2010-11-27-4/+4
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-18-5/+5
| | | | | | | | | | | | The change is currently needed to be able to remove the board configuration scripting from the top level Makefile and replace it by a simple, table driven script. Moving this configuration setting into the "CONFIG_*" name space is also desirable because it is needed if we ever should move forward to a Kconfig driven configuration system. Signed-off-by: Wolfgang Denk <wd@denx.de>
* config.mk: avoid -traditional-cpp on OS X 10.5Mike Frysinger2010-08-09-5/+5
| | | | | | | | | | | | | | | | | Simply trying to include a basic header file like stdlib.h on OS X 10.5 and then building with -traditional-cpp fails with lots of errors like: In file included from /usr/include/stdlib.h:63, from test.c:3: /usr/include/available.h:85: error: stray '#' in program /usr/include/available.h:85: error: syntax error before numeric constant /usr/include/available.h:86: error: stray '#' in program In the past, I hadn't noticed because the old logic for these flags were restricted to Darwin running on PowerPC systems while I'm running on an Intel system. But after some recent clean ups and changes, the flag was being applied to all Darwin systems and my host tools broke. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* nios: remove nios-32 archThomas Chou2010-05-28-8/+0
| | | | | | The nios-32 arch is obsolete and broken. So it is removed. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
* config.mk: use different host compiler for OS X 10.6Andreas Biessmann2010-05-26-3/+11
| | | | | | | | | | | | | | | | Compiling tools subdirectory on Mac OS X 10.6 (Snow Leopard) complains about wrong syntax in system includes. In file included from /usr/include/stdio.h:444, from ../source/u-boot/include/compiler.h:26, from ../source/u-boot/lib/crc32.c:15: /usr/include/secure/_stdio.h:46: error: syntax error in macro parameter list This can be fixed by reverting the workaround for prior OS X releases in config.mk conditionally for OS X 10.6+. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* ppc: Move cpu/$CPU to arch/ppc/cpu/$CPUPeter Tyser2010-04-13-1/+6
| | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Move lib_$ARCH directories to arch/$ARCH/libPeter Tyser2010-04-13-1/+1
| | | | | | | | | Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Change directory-specific CFLAGS to use full pathPeter Tyser2010-04-13-6/+11
| | | | | | | | | | | | | | | | | | Previously, a specific file or directory could be compiled with custom CFLAGS by adding a Makefile variable such as: CFLAGS_dlmalloc.o = <custom flags for common/dlmalloc.c> or CFLAGS_lib = <custom flags for lib directory> This method breaks down once multiple files or directories share the same path. Eg FLAGS_fileA = <custom flags> would incorrectly result in both dir1/fileA.c and dir2/fileA.c being compiled with <custom flags>. This change allows finer grained control which we need once we move lib_$ARCH to arch/$ARCH/lib/ and lib_generic/ to lib/. Without this change all lib/ directories would share the same custom CFLAGS. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Create CPUDIR variablePeter Tyser2010-04-13-6/+7
| | | | | | | | | | | | The CPUDIR variable points to the location of a target's CPU directory. Currently, it is set to cpu/$CPU. However, using $CPUDIR will allow for more flexibility in the future. It lays the groundwork for reorganizing U-Boot's directory structure to support a layout such as: arch/$ARCH/cpu/$CPU/* (architecture with multiple CPU types) arch/$ARCH/cpu/* (architecture with one CPU type) Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* makefiles: fixes for building build toolsScott Wood2009-12-02-3/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, some of the tools instead set CC to be HOSTCC in order to re-use some pattern rules -- but this fails when the user overrides CC on the make command line. Also, the HOSTCFLAGS in tools/Makefile are currently not being used because config.mk overwrites them. This patch adds static pattern rules for files that have been requested to be built with the native compiler using $(HOSTSRCS) and $(HOSTOBJS), and converts the tools to use them. It restores easylogo to using the host compiler, which was broken by commit 38d299c2db81bd889c601b5dfc12c4e83ef83333 (if this was an intentional change, please let me know -- but it seems to be a build tool). It restores -pedantic and the special flags for darwin and cygwin that were requested in tools/makefile (but keeps the flags added by config.mk) -- hopefully someone can test this on those platforms. It no longer conditionalizes -pedantic on not being darwin; it wasn't clear that that was intentional, and unless there's a real problem it's just inviting people to contribute non-pedantic patches to those files (I'm not a fan of -pedantic personally, but if it's on for one platform it should be on for all). HOST_LDFLAGS is renamed HOSTLDFLAGS for consistency with the previous HOST_CFLAGS to HOSTCFLAGS rename. A new HOSTCFLAGS_NOPED is made available for those files which currently cannot be built with -pedantic, and replaces the old FIT_CFLAGS. imls now uses the cross compiler properly, rather than by trying to reconstruct CC using the typoed $(CROSS_COMPILER). envcrc.c is now dependency-processed unconditionally -- previously it would be built without being on (HOST)SRCS if CONFIG_ENV_IS_EMBEDDED was not selected. Signed-off-by: Scott Wood <scottwood@freescale.com>
* ppc/85xx: Introduce RESET_VECTOR_ADDRESS to handle non-standard link addressKumar Gala2009-09-09-0/+4
| | | | | | | | | | Some board ports place TEXT_BASE at a location that would cause the RESET_VECTOR_ADDRESS not to be at 0xfffffffc when we link. By default we assume RESET_VECTOR_ADDRESS will be 0xfffffffc if the board doesn't explicitly set it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
* start a linker script helper fileMike Frysinger2009-08-23-10/+0
| | | | | | | | | | | | | | | Start a common header file for common linker script code (such as workarounds for older linkers) rather than doing this in the build system. As fallout, we no longer execute the linker every time config.mk is included by a build file (which can easily be 70+ times), but rather only execute it once. This also fixes a bug in the major version checking by creating a macro to easily compare versions and keep people from making the same common mistake (forgetting to check major and minor together). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix all linker scripts for older binutils versions (pre-2.16)Wolfgang Denk2009-08-21-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f62fb99941c6 fixed handling of all rodata sections by using a wildcard combined with calls to ld's builtin functions SORT_BY_ALIGNMENT() and SORT_BY_NAME(). Unfortunately these functions were only introduced with biunutils version 2.16, so the modification broke building with all tool chains using older binutils. This patch makes it work again. This is done by omitting the use of these functions for such old tool chains. This will result in slightly larger target binaries, as the rodata sections are no longer in optimal order alignment-wise which reauls in unused gaps, but the effect was found to be insignificant - especially compared to the fact that you cannot build U-Boot at all in the current state. As ld seems to have no support for conditionals we run the linker script through the C preprocessor which can be easily used to remove the unwanted function calls. Note that the C preprocessor must be run with the "-ansi" (or a "-std=") option to make sure all the system-specific predefined macros outside the reserved namespace are suppressed. Otherise, cpp might for example substitute "powerpc" to "1", thus corrupting for example "OUTPUT_ARCH(powerpc)" etc. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Mike Frysinger <vapier@gentoo.org>
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