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2018-04-15Merge git://git.denx.de/u-boot-imxTom Rini1-1/+1
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-15tools/imximage: use 0x prefix in HAB Blocks lineRasmus Villemoes1-1/+1
The u-boot-ivt.img.log file contains 0x prefixes in the HAB Blocks line, while the SPL.log does not. For consistency, and to make it easier to extract and put into a .csf file for use with NXP's code signing tool, add 0x prefixes here. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Breno Lima <breno.lima@nxp.com>
2018-04-10fw_printenv: Fix crash due to incorrect size for malloc'ed string.Kristian Amlie1-1/+1
Using sizeof gives the size of the pointer only, not the string. This could easily lead to crashes when using -l argument. Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
2018-04-10mkimage: do not fail if there is no print_header functionGuillaume GARDET1-3/+2
Commit 253c60a breaks the exit value of 'mkimage -T rkimage' and print the following error: mkimage: Can't print header for Rockchip Boot Image support: Success It is not a failure to not print headers, so just display the warning message, and finish the function properly. Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-06tools/mxsimage: Support building with LibreSSLHauke Mehrtens1-1/+2
The mxsimage utility fails to compile against LibreSSL version < 2.7.0 because LibreSSL says it is OpenSSL 2.0, but it does not support the complete OpenSSL 1.1 interface. LibreSSL defines OPENSSL_VERSION_NUMBER with 0x20000000L and therefor claims to have an API compatible with OpenSSL 2.0, but it implements EVP_MD_CTX_new(), EVP_MD_CTX_free() and EVP_CIPHER_CTX_reset() only starting with version 2.7.0, which is not yet released. OpenSSL implements this function since version 1.1.0. This commit will activate the compatibility code meant for OpenSSL < 1.1.0 also for LibreSSL version < 2.7.0. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Jonathan Gray <jsg@jsg.id.au>
2018-03-30kwbimage: Fix out of bounds accessAlexander Graf1-0/+4
The kwbimage format is reading beyond its header structure if it misdetects a Xilinx Zynq image and tries to read it. Fix it by sanity checking that the header we want to read fits inside our file size. Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2018-03-23tools: xilinx: Fix zynq/zynqmp image recognitionMichal Simek2-1/+7
There is an issue to recognize zynq or zynqmp image because header checking is just the same. That's why zynqmp images are recognized as zynq one. Check unused fields which are initialized to zero in zynq format (__reserved1 0x38 and __reserved2 0x44) which are initialized for zynqmp. This should ensure that images are properly recognized by: ./tools/mkimage -l spl/boot.bin Also show image type as ZynqMP instead of Zynq which is confusing. Reported-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Alexander Graf <agraf@suse.de>
2018-03-22tools: Make kwboot build if HOST_TOOLS_ALL=yTuomas Tynkkynen1-0/+1
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>
2018-03-19image: Add IH_OS_TEE for TEE chain-load bootBryan O'Donoghue1-2/+13
This patch adds a new type IH_OS_TEE. This new OS type will be used for chain-loading to Linux via a TEE. With this patch in-place you can generate a bootable OPTEE image like this: mkimage -A arm -T kernel -O tee -C none -d tee.bin uTee.optee where "tee.bin" is the input binary prefixed with an OPTEE header and uTee.optee is the output prefixed with a u-boot wrapper header. This image type "-T kernel -O tee" is differentiated from the existing IH_TYPE_TEE "-T tee" in that the IH_TYPE is installed by u-boot (flow control returns to u-boot) whereas for the new IH_OS_TEE control passes to the OPTEE firmware and the firmware chainloads onto Linux. Andrew Davis gave the following ASCII diagram: IH_OS_TEE: (mkimage -T kernel -O tee) Non-Secure Secure BootROM | ------------- | v SPL | v U-Boot ------> <----- OP-TEE | V Linux IH_TYPE_TEE: (mkimage -T tee) Non-Secure Secure BootROM | ------------- | v SPL -------> <----- OP-TEE | v U-Boot | V Linux Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Suggested-by: Andrew F. Davis <afd@ti.com> Cc: Harinarayan Bhatta <harinarayan@ti.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Tom Rini <trini@konsulko.com> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Peng Fan <peng.fan@nxp.com> Link: http://mrvan.github.io/optee-imx6ul
2018-03-19tools/mkimage: add support for STM32 image formatPatrick Delaunay2-0/+149
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>
2018-03-19tools: env: Implement atomic replace for filesystemAlex Kiernan1-3/+80
If the U-Boot environment is stored in a regular file and redundant operation isn't set, then write to a temporary file and perform an atomic rename. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-03-19tools: env: Refactor write path of flash_io()Alex Kiernan1-42/+50
Extract write path of flash_io() into a separate function. This patch should be a functional no-op. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-03-19tools: env: Fix CamelCasing style violationAlex Kiernan1-9/+9
Replace HaveRedundEnv with have_redund_env to fix style violation. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-03-19tools: env: Pass through indentAlex Kiernan1-176/+170
Pass tools/env/fw_env.c through indent to correct style violations. This commit consists of only one non-whitespace change: tools/env/fw_env.c:549: error: do not use assignment in if condition Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-03-09Merge git://git.denx.de/u-boot-imxTom Rini1-5/+0
2018-03-09tools/mkimage: Use proper output parameter in dtc-system callStefan Theil1-3/+3
The system call used by mkimage to run dtc redirects stdout to a temporary file. This can cause problems on Windows (with a MinGW cross-compiled version). Using the "-o" dtc parameter avoids this problem. Signed-off-by: Stefan Theil <stefan.theil@mixed-mode.de> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-03-09imximage: Remove failure when no IVT offset is foundFabio Estevam1-5/+0
Sometimes imximage throws the following error: CFGS board/freescale/vf610twr/imximage.cfg.cfgtmp CFGS board/freescale/vf610twr/imximage.cfg.cfgtmp MKIMAGE u-boot-dtb.imx Error: No BOOT_FROM tag in board/freescale/vf610twr/imximage.cfg.cfgtmp arch/arm/mach-imx/Makefile:100: recipe for target 'u-boot-dtb.imx' failed Later on, when running mkimage for the u-boot.imx it will succeed in finding the IVT offset. Looks like some race condition happening during parallel build when processing mkimage for u-boot-dtb.imx and u-boot.imx. A proper fix still needs to be implemented, but as a workaround let's remove the error when the IVT offset is not found. It is useful to have such message, especially during bring-up phase, but the build error that it causes is severe, so better avoid the build error for now. The error checking can be re-implemented later when we have a proper fix. Reported-by: Breno Lima <breno.lima@nxp.com> Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-03-05libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>Masahiro Yamada4-4/+4
Thomas reported U-Boot failed to build host tools if libfdt-devel package is installed because tools include libfdt headers from /usr/include/ instead of using internal ones. This commit moves the header code: include/libfdt.h -> include/linux/libfdt.h include/libfdt_env.h -> include/linux/libfdt_env.h and replaces include directives: #include <libfdt.h> -> #include <linux/libfdt.h> #include <libfdt_env.h> -> #include <linux/libfdt_env.h> Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-05tools: Include U-Boot libfdt headers from their actual pathPaul Kocialkowski1-1/+1
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>
2018-03-05tools/env: allow equal sign as key value separationStefan Agner1-1/+1
Treat the first equal sign as a key/value separation too. This makes the script files compatible with mkenvimage input file format. It won't support variables with equal signs anymore, but this seems not really like a loss. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2018-02-23tools/kwbimage: fix LibreSSL buildJonathan Gray1-2/+3
Fix build after addition of RSA_get0_key() to LibreSSL. Patch from Theo Buehler and Stuart Henderson. Signed-off-by: Theo Buehler <tb@openbsd.org> Signed-off-by: Stuart Henderson <sthen@openbsd.org>
2018-02-14Fix --noheader on fw_printenvAlex Kiernan2-2/+2
The single argument `--noheader' is expecting isn't taken from getopt parsing, but instead from the remaining argv arguments. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-02-04buildman: add option -E for treating compiler warnings as errorsDaniel Schwierzeck4-2/+10
Add a new option '-E' for treating all compiler warnings as errors. Eventually this will pass 'KCFLAGS=-Werror' to Kbuild. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-01-29tools/mrvl_uart.sh: Tidy script outputAndreas Färber1-3/+3
Fix a typo in help output (awailable -> available). Tidy the grammar - not the board connects to a port, we do. While at it, be consistent in upper-casing the comments. Fixes: eee4835d22 ("tools: Add Marvell recovery image download script") Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Igal Liberman <igall@marvell.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Konstantin Porotchkin <kostap@marvell.com> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2018-01-29tools/mrvl_uart.sh: Fix minicom baudrateAndreas Färber1-1/+1
minicom doesn't inherit the baudrate from stty but uses its own defaults, such as for example 57600, whereas we expect 115200 here. Explicitly tell minicom which baudrate to use. Fixes: eee4835d22 ("tools: Add Marvell recovery image download script") Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Igal Liberman <igall@marvell.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Konstantin Porotchkin <kostap@marvell.com> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2018-01-28libfdt: migrate include/libfdt_env.h to a wrapperMasahiro Yamada1-1/+1
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>
2018-01-28tools: include necessary headers explicitlyMasahiro Yamada5-0/+7
Several host-tools use "bool" type without including <stdbool.h>. This relies on the crappy header inclusion chain. tools/Makefile has the following line: HOST_EXTRACFLAGS += -include $(srctree)/include/libfdt_env.h \ All host-tools are forced to include libfdt_env.h even if they are totally unrelated to FDT. Then, <stdbool.h> is indirectly included as follows: include/libfdt_env.h -> include/linux/types.h -> <stdbool.h> I am fixing this horrible crap. In advance, I need to add necessary include directives explicitly. tools/fdtgrep.c needs more; <fctl.h> for open() and <errno.h> for errno. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Joe Hershberger <joe.hershberger@ni.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 Yamada4-4/+56
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>
2018-01-28host-tools: use python2 explicitly for shebangMasahiro Yamada5-5/+5
All of these host tools are apparently written for Python2, not Python3. Use 'python2' in the shebang line according to PEP 394 (https://www.python.org/dev/peps/pep-0394/). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-28tools: remove unused retJelle van der Waa1-2/+0
Remove unused ret from fw_env_flush. Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-22tools: provide a tool to convert a binary file to an includeHeinrich Schuchardt3-0/+110
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>
2018-01-21patman: Unquote output from get_maintainer.plStefan Brüns1-1/+2
get_maintainer.pl quotes names which it considers unsafe, i.e. anything containing [^a-zA-Z0-9_ \-]. This confuses patman, it will duplicate addresses which are also in Series-to/cc. Strip the quotes. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-19tools: omapimage: Fix mismatch of image size in headerLokesh Vutla1-1/+1
The size field in GP header that is expected by ROM is size of the image + size of the header. But omapimage tool is updating size as image size + 2 * header size. Remove this extra header size bytes. Reported-by: Denys Dmytriyenko <denys@ti.com> Debugged-by: Madan Srinivas <madans@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-01-16tools: Update python "help" tests to cope with "more" odditiesTom Rini2-2/+8
In some cases when "more" is told to page a given file it will prepend the output with: :::::::::::::: /PATH/TO/THE/FILE :::::::::::::: And when this happens the output will not match the expected length. Further, if we use a different pager we will instead fail the coverage tests as we will not have 100% coverage. Update the help test to remove the string in question. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-01-15dtoc: Allow DTC environment variable to provide path to dtcSimon Glass2-1/+6
The system device-tree compiler may not be new enough to run the tests we use in U-Boot (e.g. with binman). Allow use of a DTC environment variable to point to the correct dtc. If not defined, the dtc on the default PATH is used. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-01-15tools: fix incorrect usage of DT node unit addressAndre Przywara1-12/+12
The DT spec demands a unit-address in a node name to match the "reg" property in that node. Newer dtc versions will throw warnings if this is not the case. Correct the generated unit names when U-Boot's mkimage creates a FIT image. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-01-15fix incorrect usage of DT node unit address in commentsAndre Przywara1-5/+5
The DT spec demands a unit-address in a node name to match the "reg" property in that node. Newer dtc versions will throw warnings if this is not the case. Fix all occurences in the tree where node names were mentioned in comments, to not give bad examples to the reader. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-01-12riscv: tools: Prelink u-bootRick Chen3-0/+215
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>
2018-01-09tools: Add Marvell recovery image download scriptKonstantin Porotchkin1-0/+119
Introduce the recovery image download script for usage with Marvell Armada SoC families (excepting 37xx family). Since Marvell BootROM uses a sliding window in UART buffer for detecting escape sequence during the boot, it's easier to interrupt the normal boot flow by sending a long stream of chained escape sequences to the serial port instead of periodically sending a single escape sequence as it is done by kwboot utility. Additional benefit of using this script is the ability to adjust the escape sequence stream length withoiut need for compilation. Signed-off-by: Konstantin Porotchkin <kostap@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Igal Liberman <igall@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
2017-12-18Merge tag 'xilinx-for-v2018.01-rc2-v2' of ↵Tom Rini1-5/+27
git://www.denx.de/git/u-boot-microblaze Xilinx changes for v2018.01-rc2-v2 fpga: - Enable loading bitstream via fit image for !xilinx platforms zynq: - Fix SPL SD boot mode zynqmp: - Not not reset in panic - Do not use simple allocator because of fat changes - Various dt chagnes - modeboot variable setup - Fix fpga loading on automotive devices - Fix coverity issues test: - Fix env test for !hush case - Stephen's patch
2017-12-18tools: zynqmpimage: Check return values from file functionsMichal Simek1-5/+27
Check all return values from file functions. In case of negative return exit immediately. Also change fsize return value which can't be negative. Reported-by: Coverity (CID: 23276, 23304, 169357) Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-12binman: Add documentation for the symbol featureSimon Glass1-1/+31
Add this feature to the README. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-12-12binman: Support accessing binman tables at run timeSimon Glass10-10/+323
Binman construct images consisting of multiple binary files. These files sometimes need to know (at run timme) where their peers are located. For example, SPL may want to know where U-Boot is located in the image, so that it can jump to U-Boot correctly on boot. In general the positions where the binaries end up after binman has finished packing them cannot be known at compile time. One reason for this is that binman does not know the size of the binaries until everything is compiled, linked and converted to binaries with objcopy. To make this work, we add a feature to binman which checks each binary for symbol names starting with '_binman'. These are then decoded to figure out which entry and property they refer to. Then binman writes the value of this symbol into the appropriate binary. With this, the symbol will have the correct value at run time. Macros are used to make this easier to use. As an example, this declares a symbol that will access the 'u-boot-spl' entry to find the 'pos' value (i.e. the position of SPL in the image): binman_sym_declare(unsigned long, u_boot_spl, pos); This converts to a symbol called '_binman_u_boot_spl_prop_pos' in any binary that includes it. Binman then updates the value in that binary, ensuring that it can be accessed at runtime with: ulong u_boot_pos = binman_sym(ulong, u_boot_spl, pos); This assigns the variable u_boot_pos to the position of SPL in the image. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Support enabling debug in testsSimon Glass4-6/+23
The elf module can provide some debugging information to assist with figuring out what is going wrong. This is also useful in tests. Update the -D option so that it is passed through to tests as well. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Adjust size of test SPL binarySimon Glass5-14/+14
This is only 3 bytes long which is not enough to hold two symbol values, needed to test the binman symbols feature. Increase it to 15 bytes. Using very small regions is useful since we can easily compare them in tests and errors are fairly easy to diagnose. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Add tests binaries with binman symbolsSimon Glass9-1/+103
For testing we need to build some ELF files containing binman symbols. Add these to the Makefile and check in the binaries: u_boot_binman_syms - normal, valid ELF file u_boot_binman_syms_bad - missing the __image_copy_start symbol u_boot_binman_syms_size - has a binman symbol with an invalid size Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Drop a stale comment about the 'board' featureSimon Glass1-1/+0
This feature is now supported. Drop the incorrect comment. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Add support for including spl/u-boot-spl-nodtb.binSimon Glass3-0/+33
This file contains SPL image without a device tree. Add support for including this in images. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Add support for including spl/u-boot-spl.dtbSimon Glass3-0/+37
This file contains the SPL device tree. Add support for including this by itself in images. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Add a function to read ELF symbolsSimon Glass8-11/+128
In some cases we need to read symbols from U-Boot. At present we have a a few cases which does this via 'nm' and 'grep'. It is better to use objdump since that tells us the size of the symbols and also whether it is weak or not. Add a new module which reads ELF information from files. Update existing uses of 'nm' to use this module. Signed-off-by: Simon Glass <sjg@chromium.org>
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