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2020-04-26fdt_region: move fdt_region.c to common/ from lib/libfdt/Masahiro Yamada
My goal is to sync lib/libfdt/ with scripts/dtc/libfdt/, that is, make lib/libfdt/ contain only wrapper files. fdt_region.c was written only for U-Boot to implement the verified boot. So, this belongs to the same group as common/fdt_support.c, which is a collection of U-Boot own fdt helpers. Move lib/libfdt/fdt_region.c to common/fdt_region.c . This is necessary only when CONFIG_(SPL_TPL_)_FIT_SIGNATURE is enabled. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-26libfdt: migrate fdt_ro.c to a wrapper of scripts/dtc/libfdt/fdt_ro.cMasahiro Yamada
There is no essential difference between scripts/dtc/libfdt/fdt_ro.c and lib/libfdt/fdt_ro.c Migrate to a simple wrapper like the other files. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-10kconfig / kbuild: Re-sync with Linux 4.19Tom Rini
Align Kconfig and Kbuild logic to Linux 4.19 release with minimal impact on files outside of this scope. Our previous Kconfig sync was done by commit 5972ff077e0f ("kconfig / kbuild: re-sync with Linux 4.18"). In this particular re-sync in order to keep clang support working a number of related changes needed to be pulled in that had been missed previously. Not all of these changes we easily traceable and so have been omitted from the list below. The imported Linux commits are: [From prior to v4.18] 9f3f1fd29976 kbuild: Add __cc-option macro d7f14c66c273 kbuild: Enable Large File Support for hostprogs 6d79a7b424a5 kbuild: suppress warnings from 'getconf LFS_*' 24403874316a Shared library support 86a9df597cdd kbuild: fix linker feature test macros when cross compiling with Clang 0294e6f4a000 kbuild: simplify ld-option implementation [From v4.18 to v4.19] 96f14fe738b6 kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS 10844aebf448 kbuild: Rename HOSTCXXFLAGS to KBUILD_HOSTCXXFLAGS b90a368000ab kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS 8377bd2b9ee1 kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS f92d19e0ef9b kbuild: Use HOST*FLAGS options from the command line 4ab3b80159d4 kconfig: check for pkg-config on make {menu,n,g,x}config 693359f7ac90 kconfig: rename SYMBOL_AUTO to SYMBOL_NO_WRITE f60b992e30ff kbuild: replace $(LDFLAGS) $(ldflags-y) with $(ld_flags) 2fb9279f2c3e kbuild: change ld_flags to contain LDFLAGS_$(@F) c931d34ea085 arm64: build with baremetal linker target instead of Linux when available 5accd7f3360e kconfig: handle format string before calling conf_message_callback() a2ff4040151a kconfig: rename file_write_dep and move it to confdata.c 0608182ad542 kconfig: split out useful helpers in confdata.c adc18acf42a1 kconfig: remove unneeded directory generation from local*config 79123b1389cc kconfig: create directories needed for syncconfig by itself 16952b77d8b5 kconfig: make syncconfig update .config regardless of sym_change_count d6c6ab93e17f kbuild: remove deprecated host-progs variable 56869d45e364 kconfig: fix the rule of mainmenu_stmt symbol c151272d1687 kconfig: remove unused sym_get_env_prop() function 1880861226c1 kconfig: remove P_ENV property type e3fd9b5384f3 scripts/dtc: consolidate include path options in Makefile 4bf6a9af0e91 kconfig: add build-only configurator targets f1575595d156 kconfig: error out when seeing recursive dependency 5e8c5299d315 kconfig: report recursive dependency involving 'imply' f498926c47aa kconfig: improve the recursive dependency report 98a4afbfafd2 kconfig: fix "Can't open ..." in parallel build 9a9ddcf47831 kconfig: suppress "configuration written to .config" for syncconfig 87a32e624037 kbuild: pass LDFLAGS to recordmcount.pl d503ac531a52 kbuild: rename LDFLAGS to KBUILD_LDFLAGS 217c3e019675 disable stringop truncation warnings for now bc8d2e20a3eb kconfig: remove a spurious self-assignment fd65465b7016 kconfig: do not require pkg-config on make {menu,n}config 5a4630aadb9a ftrace: Build with CPPFLAGS to get -Qunused-arguments Note that this adds new cleanup work to do in that we should adapt the shared library support we have to what is now upstream. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-12lib: rsa: decouple rsa from FIT image verificationAKASHI Takahiro
Introduce new configuration, CONFIG_RSA_VERIFY which will decouple building RSA functions from FIT verification and allow for adding a RSA-based signature verification for other file formats, in particular PE file for UEFI secure boot. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-01-17u-boot: fit: add support to decrypt fit with aesPhilippe Reynes
This commit add to u-boot the support to decrypt fit image encrypted with aes. The FIT image contains the key name and the IV name. Then u-boot look for the key and IV in his device tree and decrypt images before moving to the next stage. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2020-01-17mkimage: fit: add support to encrypt image with aesPhilippe Reynes
This commit add the support of encrypting image with aes in mkimage. To enable the ciphering, a node cipher with a reference to a key and IV (Initialization Vector) must be added to the its file. Then mkimage add the encrypted image to the FIT and add the key and IV to the u-boot device tree. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-12-06cmd: add asn1_compilerAKASHI Takahiro
Imported from linux kernel v5.3: asn1.h without changes asn1_ber_bytecode.h without changes asn1_decoder.h without changes asn1_compiler.c without changes This host command will be used to create a ASN1 parser, for example, for pkcs7 messages or x509 certificates. More specifically, it will generate *byte code* which will be interpreted by asn1 decoder library. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-08-26tools: remove easylogo and include/video_logo.hHeinrich Schuchardt
include/video_logo.h once was created via the tool easylogo and than used in cpu/mpc8xx/video.c to display Tux. video_logo.h has been replaced by include/linux_logo.h and is not needed anymore. Delete the include and the tool, Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-07-29bmp_logo: support CONFIG_DM_VIDEOHeiko Schocher
in case of bmp_logo, the video_bmp driver is used for drawing a bmp logo. This driver supports only "full" bmp data. Adding a logo with the bmp_logo tool to u-boot binary adds currently only real data and drops the bmp header. This patch adds now the full bmp data to the u-boot binary, so video_bmp driver works with the logo embedded into u-boot. Fixed also some checkpatch error poping up with this patch. Signed-off-by: Heiko Schocher <hs@denx.de>
2019-07-23x86: Add ifwitool for Intel Integrated Firmware ImageSimon Glass
Some Intel SoCs from about 2016 boot using an internal microcontroller via an 'IFWI' image. This is a special format which can hold firmware images. In U-Boot's case it holds u-boot-tpl.bin. Add this tool, taken from coreboot, so that we can build bootable images on apollolake SoCs. This tool itself has no tests. Some amount of coverage will be provided by the binman tests that use it, so enable building the tool on sandbox. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-06-07spl: add overall SPL size checkSimon Goldschmidt
This adds a size check for SPL that can dynamically check generated SPL binaries (including devicetree) for a size limit that ensures this image plus global data, heap and stack fit in initial SRAM. Since some of these sizes are not available to make, a new host tool 'spl_size_limit' is added that dumps the resulting maximum size for an SPL binary to stdout. This tool is used in toplevel Makefile to implement the size check on SPL binaries. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-09Make FIT support really optionalFabrice Fontaine
Due to some mistakes in the source code, it was not possible to really turn FIT support off. This commit fixes the problem by means of the following changes: - Enclose "bootm_host_load_image" and "bootm_host_load_images" between checks for CONFIG_FIT_SIGNATURE, in common/bootm.c. - Enclose the declaration of "bootm_host_load_images" between checks for CONFIG_FIT_SIGNATURE, in common/bootm.h. - Condition the compilation and linking of fit_common.o fit_image.o image-host.o common/image-fit.o to CONFIG_FIT=y, in tools/Makefile. Signed-off-by: Carlos Santos <casantos@datacom.ind.br> [fabio: adapt for 2016.07] Signed-off-by: Fabio Estevam <festevam@gmail.com> [Ricardo: fix conditional compilation and linking of the files mentioned above for 2016.07] Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com> [Jörg: adapt for 2019.01] Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> [Retrieved from: https://git.buildroot.net/buildroot/tree/package/uboot-tools/0003-Make-FIT-support-really-optional.patch] Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
2019-05-03tools/Makefile: fix HOSTCFLAGS with CROSS_BUILD_TOOLSFabrice Fontaine
When CROSS_BUILD_TOOLS is set, set HOSTCFLAGS to CFLAGS otherwise CC will be used with HOSTCFLAGS which seems wrong Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
2019-04-26tools/Makefile: get openssl CFLAGS from pkg-configPierre Bourdon
Fixes building mkimage on systems where OpenSSL header files do not live in the standard include path. Signed-off-by: Pierre Bourdon <delroth@gmail.com>
2019-04-03tools/Makefile: build host tools with -std=gnu99Thomas Petazzoni
Parts of the code are using C99 constructs (such as variables declared inside loops), but also GNU extensions (such as typeof), so using -std=gnu99 is necessary to build with older versions of gcc that don't default to building with gnu99. It fixes the following build failure: ./tools/../lib/crc16.c: In function "crc16_ccitt": ./tools/../lib/crc16.c:70:2: error: "for" loop initial declarations are only allowed in C99 mode for (int i = 0; i < len; i++) ^ ./tools/../lib/crc16.c:70:2: note: use option -std=c99 or -std=gnu99 to compile your code when building the host tools with gcc 4.7. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-01-01Merge tag 'u-boot-imx-20190101' of git://www.denx.de/git/u-boot-imxTom Rini
imx for 2019.01 - introduce support for i.MX8M - fix size limit for Vhybrid / pico boards - several board fixes - w1 driver for MX2x / MX5x
2019-01-01tools: add i.MX8M image supportPeng Fan
i.MX8M bootable image type is like i.MX6/7, but there is signed HDMI firmware image in front of A53 bootable image, which is also has an IVT header. Here we also include fit image to generate a bootable image. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Stefano Babic <sbabic@denx.de>
2018-12-15tools: add a generic config for native tools buildingOtavio Salvador
The motivation for this is to allow distributions to distribute all possible tools in a generic way, avoiding the need of specific tools building for each machine. Especially on OpenEmbedded / Yocto Project ecosystem, it is very common each BSP to end providing their specific tools when they need to generate images for some SoC (e.g MX23 / MX28 in meta-freescale case). Using this, we can package the tools doing: $: make tools-only_defconfig $: make tools-only Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> [trini: Add MAINTAINERS entry for myself, add to .travis.yml, make U-Boot itself buildable to not trip up other frameworks] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-08Roll CRC16-CCITT into the hash infrastructurePhilipp Tomsich
The CRC16-CCITT checksum function is useful for space-constrained applications (such as obtaining a checksum across a 2KBit or 4KBit EEPROM) in boot applications. It has not been accessible from boot scripts until now (due to not having a dedicated command and not being supported by the hash infrstructure) limiting its applicability outside of custom commands. This adds the CRC16-CCITT (poly 0x1021, init 0x0) algorithm to the list of available hashes and adds a new crc16_ccitt_wd_buf() to make this possible. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> [trini: Fix building crc16.o for SPL/TPL] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-11-28tools: MediaTek: add MTK boot header generation to mkimageRyder Lee
This patch adds support for MTK boot image generation. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-10-22tools: add i.MX8/8X image supportPeng Fan
i.MX8/8X bootable image type is container type. The bootable image, containers a container set which supports two container. The 1st container is for SECO firmware, the 2nd container needs to include scfw, m4_0/1 image, ACore images per your requirement. Signed-off-by: Peng Fan <peng.fan@nxp.com>
2018-07-10vboot: Add FIT_SIGNATURE_MAX_SIZE protectionTeddy Reed
This adds a new config value FIT_SIGNATURE_MAX_SIZE, which controls the max size of a FIT header's totalsize field. The field is checked before signature checks are applied to protect from reading past the intended FIT regions. This field is not part of the vboot signature so it should be sanity checked. If the field is corrupted then the structure or string region reads may have unintended behavior, such as reading from device memory. A default value of 256MB is set and intended to support most max storage sizes. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Teddy Reed <teddy.reed@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-11tools: zynqmpimage: Add bif supportAlexander Graf
The officially described way to generate boot.bin files for ZynqMP is to describe the contents of the target binary using a file of the "bif" format. This file then links to other files that all get packed into a bootable image. This patch adds support to read such a .bif file and generate a respective ZynqMP boot.bin file that can include the normal image and pmu files, but also supports image partitions now. This makes it a handy replacement for the proprietary "bootgen" utility that is currently used to generate boot.bin files with FSBL. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-22tools: Make kwboot build if HOST_TOOLS_ALL=yTuomas Tynkkynen
The kwboot tool for Marvell devices isn't currently being built even if HOST_TOOLS_ALL is set. It doesn't appear to depend on any CONFIG_ options, so it seems appropriate to enable building it here. Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-03-19tools/mkimage: add support for STM32 image formatPatrick Delaunay
STM32MP157 bootrom needs a specific header for first boot stage. This patch adds support of this header in mkimage. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-05tools: Include U-Boot libfdt headers from their actual pathPaul Kocialkowski
There are no headers for libfdt in lib/libfdt, as they are instead located in scripts/dtc/libfdt. Specifying lib/libfdt for headers inclusion in host tools results in using the system libfdt headers, which is not what we want. Change this to the proper path. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
2018-01-28libfdt: migrate include/libfdt_env.h to a wrapperMasahiro Yamada
libfdt_env.h is supposed to provide system-dependent defines. scripts/dtc/libfdt/libfdt_env.h from upstream DTC is suitable for user-space, so we should use this for USE_HOSTCC case. For compiling U-Boot, we need to override such system-dependent defines, so use <linux/libfdt_env.h> imported from Linux. <libfdt.h> selects a proper one. Maybe, we should split header inclusion completely, but I do not want too many patches at one. I can rip off the include/libfdt_env.h from HOST_EXTRACFLAGS. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-28libfdt: migrate fdt_rw.c to a wrapper of scripts/dtc/libfdt/fdt_rw.cMasahiro Yamada
The only difference between scripts/dtc/libfdt/fdt_rw.c and lib/libfdt/fdt_rw.c is fdt_remove_unused_strings(). It is only used by fdtgrep, so we do not need to compile it for U-Boot image. Move it to tools/libfdt/fdw_rw.c so that lib/libfdt/fdt_rw.c can be a wrapper of scripts/dtc/libfdt/fdt_rw.c. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-22tools: provide a tool to convert a binary file to an includeHeinrich Schuchardt
For testing EFI disk management we need an in-memory image of a disk. The tool file2include converts a file to a C include. The file is separated into strings of 8 bytes. Only the non-zero strings are written to the include. The output format has been designed to maintain readability. #define EFI_ST_DISK_IMG { 0x00010000, { \ {0x000001b8, "\x94\x37\x69\xfc\x00\x00\x00\x00"}, /* .7i..... */ \ {0x000001c0, "\x02\x00\x83\x02\x02\x00\x01\x00"}, /* ........ */ \ {0x000001c8, "\x00\x00\x7f\x00\x00\x00\x00\x00"}, /* ........ */ \ {0x000001f8, "\x00\x00\x00\x00\x00\x00\x55\xaa"}, /* ......U. */ \ ... {0x00006000, "\x48\x65\x6c\x6c\x6f\x20\x77\x6f"}, /* Hello wo */ \ {0x00006008, "\x72\x6c\x64\x21\x0a\x00\x00\x00"}, /* rld!.... */ \ {0, NULL} } } As the disk image needed for testing contains mostly zeroes a high compression ratio can be attained. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-12riscv: tools: Prelink u-bootRick Chen
Add prelink-riscv to arrange .rela.dyn and .rela.got in compile time. So that u-boot can be directly executed without fixup. Signed-off-by: Chih-Mao Chen <cmchen@andestech.com> Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Signed-off-by: Greentime Hu <green.hu@gmail.com>
2017-12-04libfdt: migrate fdt_wip.c to a wrapper of scripts/dtc/libfdt/fdt_wip.cMasahiro Yamada
Now, lib/libfdt/fdt_wip.c is the same as scripts/dtc/libfdt/fdt_wip.c Change the former to a wrapper of the latter. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-17tools: use files from scripts/dtc/libfdt where possibleMasahiro Yamada
Prior to this commit, tools/Makefile pulls all libfdt files from lib/libfdt. lib/libfdt/ and scripts/dtc/libfdt have the same copies for the followings 6 files: fdt.c fdt_addresses.c fdt_empty_tree.c fdt_overlay.c fdt_strerr.c fdt_sw.c This commit changes them to #include ones from scripts/dtc/libfdt. Unfortunately, U-Boot locally modified the following 3 files: fdt_ro.c fdt_wip.c fdt_rw.c I did not touch them in order to avoid unpredictable impact. The fdt_region.c is U-Boot own file. This is also borrowed from lib/libfdt/. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-17pylibfdt: move pylibfdt to scripts/dtc/pylibfdt and refactor makefileMasahiro Yamada
The pylibfdt is used by dtoc (and, indirectly by binman), but there is no reason why it must be generated in the tools/ directory. Recently, U-Boot switched over to the bundled DTC, and the directory structure under scripts/dtc/ now mirrors the upstream DTC project. So, scripts/dtc/pylibfdt is the best location. I also rewrote the Makefile in a cleaner Kbuild style. The scripts from the upstream have been moved as follows: lib/libfdt/pylibfdt/setup.py -> scripts/dtc/pylibfdt/setup.py lib/libfdt/pylibfdt/libfdt.i -> scripts/dtc/pylibfdt/libfdt.i_shipped The .i_shipped is coped to .i during building because the .i must be located in the objtree when we build it out of tree. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-16env: Drop CONFIG_ENV_IS_IN_DATAFLASHTuomas Tynkkynen
Last user of this option went away in commit: fdc7718999 ("board: usb_a9263: Update to support DT and DM") Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
2017-09-24tools/mkimage: Make the path to the dtc binary that mkimage calls configurableTom Rini
In some cases, such as FreeBSD, the path to an alternative dtc needs to be used. Rather than override the one given in the Makefile on the command line, make this part of the build configuration. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-09-03Makefile: Suppress output of python libfdt build commandBin Meng
This should not be printed by default. Prefix it with $(Q). Fixes ee95d10b: ("fdt: Build the new python libfdt module") Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-03Makefile: Quiesce libfdt buildBin Meng
Since commit 3809e302 "Makefile: honor PYTHON configuration properly", the build commands of libfdt are printed while previously were not. This adds the missing '--quiet' back. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-08-20Makefile: honor PYTHON configuration properlyClément Bœsch
On some systems `python` is `python3` (for instance, Archlinux). The `PYTHON` variable can be used to point to `python2` to have a successful build. The use of `PYTHON` is currently limited in the Makefile and needs to be extended in other places: First, pylibfdt is required to be a Python 2 binding (binman imports pylibfdt and is only compatible Python 2), so its setup.py needs to be called accordingly. An alternative would be to change the libfdt setup.py shebang to python2, but the binding is actually portable. Also, it would break on system where there is no such thing as `python2`. Secondly, the libfdt import checks need to be done against Python 2 as well since the Python 2 compiled modules (in this case _libdft.so) can not be imported from Python 3. Note on the libfdt imports: "@if ! PYTHONPATH=tools $(PYTHON) -c 'import libfdt'; then..." is probably simpler than the currently sub-optimal pipe. Reviewed-by: Jonathan Gray <jsg@jsg.id.au>
2017-08-15Move environment files from common/ to env/Simon Glass
About a quarter of the files in common/ relate to the environment. It seems better to put these into their own subdirectory and remove the prefix. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-07-25MIPS: Stop building position independent codePaul Burton
U-Boot has up until now built with -fpic for the MIPS architecture, producing position independent code which uses indirection through a global offset table, making relocation fairly straightforward as it simply involves patching up GOT entries. Using -fpic does however have some downsides. The biggest of these is that generated code is bloated in various ways. For example, function calls are indirected through the GOT & the t9 register: 8f998064 lw t9,-32668(gp) 0320f809 jalr t9 Without -fpic the call is simply: 0f803f01 jal be00fc04 <puts> This is more compact & faster (due to the lack of the load & the dependency the jump has on its result). It is also easier to read & debug because the disassembly shows what function is being called, rather than just an offset from gp which would then have to be looked up in the ELF to discover the target function. Another disadvantage of -fpic is that each function begins with a sequence to calculate the value of the gp register, for example: 3c1c0004 lui gp,0x4 279c3384 addiu gp,gp,13188 0399e021 addu gp,gp,t9 Without using -fpic this sequence no longer appears at the start of each function, reducing code size considerably. This patch switches U-Boot from building with -fpic to building with -fno-pic, in order to gain the benefits described above. The cost of this is an extra step during the build process to extract relocation data from the ELF & write it into a new .rel section in a compact format, plus the added complexity of dealing with multiple types of relocation rather than the single type that applied to the GOT. The benefit is smaller, cleaner, more debuggable code. The relocate_code() function is reimplemented in C to handle the new relocation scheme, which also makes it easier to read & debug. Taking maltael_defconfig as an example the size of u-boot.bin built using the Codescape MIPS 2016.05-06 toolchain (gcc 4.9.2, binutils 2.24.90) shrinks from 254KiB to 224KiB. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: u-boot@lists.denx.de Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Tested-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2017-07-22dtc: mkimage: Add the possibility to specify DTCEmmanuel Vadot
FreeBSD recently switch to it's BSDL dtc. While it support most of the features of the GPL one it still lacks the incbin directive. Add the possibility to specify which dtc we want to use for compiling dts and generating fit image. Signed-off-by: Emmanuel Vadot <manu@bidouilliste.com> Acked-by: Simon Glass <sjg@chromium.org>
2017-06-02fdt: Stop building the old python libfdt moduleSimon Glass
This is no-longer needed, so stop building it. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-02fdt: Build the new python libfdt moduleSimon Glass
Build the upstream python libfdt module. At present the legacy module is still built and is the one that it used. Future work will switch this over. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-02fdt: Rename existing python libfdt moduleSimon Glass
Now that this module has been accepted upstream we should stop using the local U-Boot one. In preparation for this, rename it to indicate it is for legacy use. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-02fdt: Add all source files to the libfdt buildSimon Glass
At present only a subset of source files are build. Add the rest and refactor this so that a source file list is available also. This will be used in later commit. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-13tools: allow to override pythonStefano Babic
Not force to use python from PATH. Issue was noted when building with Yocto, because python from the distro is always taken instead of python-native built during Yocto process. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-07tools: sunxi: Add spl image builderMaxime Ripard
This program generates raw SPL images that can be flashed on the NAND with the ECC and randomizer properly set up. This has been copied (and tweaked to find the right headers) from the sunxi-tools (https://github.com/linux-sunxi/sunxi-tools) upstream repository, commit 1c3a6ca5. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-03-20Pass empty CFLAGS on invocation of libfdt/setup.pyMax Filippov
When building u-boot tools in cross-build environment CFLAGS environment variable set up for target is taken into an account when building code for host. Make it empty on invocation of python. This fixes the following build errors when cross-compiling for xtensa: cc1: error: unrecognized command line option "-mlongcalls" cc1: error: unrecognized command line option "-mauto-litpools" Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-03-14tools: fix cross-compiling tools when HOSTCC is overriddenMasahiro Yamada
Richard reported U-Boot tools issues in OpenEmbedded/Yocto project. OE needs to be able to change the default compiler. If we pass in HOSTCC through the make command, it overwrites all HOSTCC instances, including ones in tools/Makefile and tools/env/Makefile, which breaks "make cross_tools" and "make env", respectively. Add "override" directives to avoid overriding HOSTCC instances that really need to point to the cross-compiler. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reported-by: Richard Purdie <richard.purdie@linuxfoundation.org> Reviewed-by: Simon Glass <sjg@chromium.org>