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2019-10-18util/cbfstool: Add optional argument ibbPhilipp Deppenwiese
* Mark files in CBFS as IBB (Initial BootBlock) * Will be used to identify the IBB by any TEE Change-Id: Idb4857c894b9ee1edc464c0a1216cdda29937bbd Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29744 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-08-20util/cbfstool: Remove unused assignmentJacob Garber
This variable is overwritten on one branch of the next if statement, and the other branch returns, so this assignment does nothing. Change-Id: I63737929d47c882bbcf637182bc8bf73c19daa9f Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: scan-build 8.0.0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/34644 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-07-21util/cbfstool/flashmap: Fix memory leaks on failureJacob Garber
Fix several memory leaks on failed printing or tests. These don't matter much, but it keeps Coverity happy. Change-Id: Ie750acb50ae1590c3aea533338a8827c03459c1a Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 130245{1,2,3} Reviewed-on: https://review.coreboot.org/c/coreboot/+/34412 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-07-10util/cbfstool: Close file on errorJacob Garber
Prevents a resource leak. Change-Id: I032227228c8e37e989960ad6292ded39b81835a9 Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 1383919 Reviewed-on: https://review.coreboot.org/c/coreboot/+/33992 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-07-07util/cbfstool: Prevent overflow of 16 bit multiplicationsJacob Garber
Considering the following integer multiplication: u64 = u16 * u16 What on earth, one might wonder, is the problem with this? Well, due to C's unfortunately abstruse integer semantics, both u16's are implicitly converted to int before the multiplication, which cannot hold all possible values of a u16 * u16. Even worse, after overflow the intermediate result will be a negative number, which during the conversion to a u64 will be sign-extended to a huge integer. Not good. The solution is to manually cast one of the u16 to a u32 or u64, which are large enough to not have any overflow and will prevent the implicit conversion. The type of the u64 is preferred, though a u32 is used instead of size_t, since that can change depending on the platform. Change-Id: I5391221d46d620d0e5bd629e2f9680be7a53342e Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 12297{03,04,05,06,07,08,09,10} Reviewed-on: https://review.coreboot.org/c/coreboot/+/33986 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2019-07-03util/cbfstool: Add AMD BIOS compression tool for PSPMarshall Dawson
Add a utility to generate a compressed BIOS image for AMD Family 17h. If the input is an elf file, the utility extracts the program portion for compression. Otherwise the file is compressed as-is. In modern AMD systems, the PSP brings up DRAM then uncompresses the BIOS image into memory prior to x86 beginning execution. The PSP supports a zlib engine, and interprets the first 256 bytes as a header, where offset 0x14 containing the uncompressed size. For further details, see AMD Platform Security Processor BIOS Architecture Design Guide for AMD Family 17h Processors (NDA only, #55758). BUG=b:127766506 TEST=Use with WIP Picasso Change-Id: Id1c54e0a6dae9e4a0362c6635fe8b8aa48a369d8 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33401 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
2019-07-02cbfstool: show "preserved" flag in cbfstool layout outputPatrick Georgi
The flag is useful for updaters to determine which areas to leave alone, such as VPD (vital product data) regions that are set in factory and might contain unique (MAC addresses) or hard to obtain (calibration output) data. It's also useful to see which regions are marked as such. Change-Id: Ic0a229d474b32ac156cfabc917714ce9d339bac6 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33604 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2019-07-01util/cbfstool/ifittool: use strtol function instead of atoiPandya, Varshit B
Fix error "Invalid option -A" by adding "A" to options list. Also, atoi does not parse hex string, for instance 0x200 is interpreted as 0, and this causes a failure when updating second FIT table using -j option. Use strtol instead of atoi BUG=none BRANCH=none TEST=Build and boot hatch after enabling dual bootblock feature. Change-Id: Ib227437f88ffcccda1ce2f20a9ab098e5aa091c7 Signed-off-by: Pandya, Varshit B <varshit.b.pandya@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33937 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
2019-06-26cbfstool/fit: need inttypes.h for PRIx64Joel Kitching
This is causing coreboot build in Chromium OS to fail. BUG=None TEST=emerge-eve coreboot BRANCH=none Change-Id: I4faa140b3046651b4ed0a9aeefe437048c6ef0da Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33780 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-06-24util/cbfstool/flashmap: Correct local includesElyes HAOUAS
Change-Id: I78ba7afd2085c7e9c93e892470111bfee154bb04 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33733 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2019-06-24cbfstool: Drop update-fit optionPatrick Rudolph
The ifittool is used instead. Drop old code. Change-Id: I70fec5fef9ffd1ba3049badb398783f31aefb02f Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31496 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-06-24cbfstool: Add ifittoolPhilipp Deppenwiese
Add the IntelFirmwareInterfaceTable-tool to modify the FIT. As cbfstool is overloaded with arguments, introduce a new tool to only modify FIT, which brings it's own command line syntax. Provide clean interface to: * Clear FIT * Add entry to CBFS file * Add entry to REGION * Delete entries * Add support for types other than 1 * Add support to dump current table * Add support for top-swap * Sort entries by type Most code is reused from existing cbfstool and functionality of cbfstool is kept. It will be removed once the make system uses only ifittool. Based on "Intel Trusted Execution Technology (Intel TXT) LAB Handout" and https://github.com/slimbootloader/slimbootloader . Change-Id: I0fe8cd70611d58823aca1147d5b830722ed72bd5 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31493 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-05-09vboot: include vb2_sha.h when requiredJoel Kitching
Should include vb2_sha.h header when SHA library functions or constants are required. This replaces NEED_VB2_SHA_LIBRARY. BUG=b:124141368, chromium:956474 TEST=make clean && make test-abuild BRANCH=none Change-Id: I9f32174dbf3de05fbe5279cb8017888757abf368 Signed-off-by: Joel Kitching <kitching@google.com> Cq-Depend: chromium:1583820 Reviewed-on: https://review.coreboot.org/c/coreboot/+/32454 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-04-23cbfstool: Fix cbfs_file_next_attrPatrick Rudolph
The last attribute was never returned. Fix size compare to retrieve all attributes. Manually tested and seen all attributes, including the last one. Change-Id: I08df073158a0f285f96048c92aa8066fa4f57e6f Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31494 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-04-23Klocwork: Fix the Null pointer derefernce found by klocworkThejaswani Putta
Signed-off-by: Thejaswani Putta <thejaswani.putta@intel.com> Change-Id: I15973ac28e9645826986cf63d2160eedb83024e4 Reviewed-on: https://review.coreboot.org/c/coreboot/+/32290 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Lijian Zhao <lijian.zhao@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-04-11Documentation: Explain FMAP and FMDHung-Te Lin
The Flashmap (FMAP) was not clearly documented. The new flashmap.md explains where to find more details about that and how / why it was used in coreboot. Also explained what is FMD and how to use it (based on original README.fmaptool). BUG=None TEST=None (only documentation) Change-Id: Ia389e56c632096d7c905ed221fd4f140dec382e6 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31766 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2019-03-05cbfstool: Support new FMD flag "PRESERVE"Hung-Te Lin
When updating firmware, it is very often that we may want to preserve few sections, for example vital product data (VPD) including serial number, calibration data and cache. A firmware updater has to hard-code the section names that need to be preserved and is hard to maintain. A better approach is to specify that in FMAP area flags (the `area_flag` field) using FMAP_AREA_PRESERVE. With this patchset, a FMD parser flag "PRESERVE" is introduced and will be converted to FMAP_AREA_PRESERVE when generating FMAP data (by fmap_from_fmd.c). For example, The FMD statement: RO_VPD(PRESERVE)@0x0 16k will generate an FMAP firmware section that: area_name = "RO_VPD" area_offset = 0 area_size = 16384 area_flags = FMAP_AREA_PRESERVE BUG=chromium:936768 TEST=make; boots on x86 "google/eve" and arm "google/kukui" devices Manually added 'PRESERVE' to some FMD files, and verify (by running fmap.py) the output coreboot.rom has FMAP_AREA_PRESERVE set Change-Id: I51e7d31029b98868a1cab0d26bf04a14db01b1c0 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31707 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-03-05rmodule: Add support for R_X86_64_PLT32Patrick Rudolph
The recent toolchain update also updated binutils, which has a new relocation type, introduced with commit bd7ab16b (x86-64: Generate branch with PLT32 relocation). Add support for R_X86_64_PLT32, which is handled as R_X86_64_PC32. Add comment explaining the situation. Fixes build error on x86_64. Change-Id: I81350d2728c20ac72cc865e7ba92319858352632 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31468 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-05cbfstool: Change FMD annotation to flagsHung-Te Lin
The idea of "annotation" for firmware sections was pretty flexible, but in future we will want multiple attributes applied to same area. For example, indicate the section must be preserved when updating firmware so serial number or MAC address can be preserved. The solution here is to extend annotation so it can take multiple identifiers (flags) in a row. For example, to declare a 64KB COREBOOT section as CBFS using annotation: COREBOOT(CBFS)@0x0 64k If there's a new flag "PRESERVE" indicating the section must be preserved before update, we can declare it following CBFS flag: COREBOOT(CBFS PRESERVE)@0x0 64k The flags are directly parsed in fmd_parser, and stored in an union flashmap_flags. Output modules can choose to ignore or process the flags. Currently the only supported flag is "CBFS" (for backward compatible with annotation). There will be more new flags in follow up patches. BUG=chromium:936768 TEST=make; boots on x86 "google/eve" and arm "google/kukui" devices Change-Id: Ie2d99f570e6faff6ed3a4344d6af7526a4515fae Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31706 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-04fmap: Add FMAP_AREA_PRESERVEHung-Te Lin
When updating firmware, we may need to preserve some sections like VPD, calibration data, ... etc. The logic can be hard-coded in updater as a list of known names, but a better solution is to have that directly declared inside FMAP area flags. To do that, the first step is to apply the changes in flash map (http://crosreview.com/1493767). A new FMAP_AREA_PRESERVE is now defined and will be set in future with new syntax in FMD parser. BUG=chromium:936768 TEST=make; boots an x86 image. Change-Id: Idba5c8d4a4c5d272f22be85d2054c6c0ce020b1b Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/c/31676 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-03-03rmodule: Don't emit reloc for R_X86_64_PC64Patrick Rudolph
Relocations for PC relative instructions must not emitted. As PC64 are unlikely with current code, it never was an issue. Change-Id: Ife472a287ff15b1c04a516e25ff13221441fd122 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/c/31469 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-02-06Makefile.inc: Create a default SMMSTORE regionArthur Heymans
Change-Id: I7b7b75050e0139ea9a0a4f2ad3c0d69a482fb38b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/30421 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-02-06Makefile.inc: Optimize generating the default x86 fmapArthur Heymans
Put the FMAP FMAP region right above the coreboot CBFS region. The other regions like RW_MRC_CACHE and CONSOLE often have alignment requirements so it makes sense to put those on top. This also simplifies the code the generate the default fmap a little. Change-Id: I24fa6c89ecf85fb9002c0357f14aa970ee51b1df Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/30419 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-12-24util/cbfstool/cbfstool.c: Fix typoFrans Hendriks
Fix typo of 'top-aligned' BUG=N/A TEST=Intel CherryHill CRB Change-Id: I6dc2f150d8ec245070257384b406a570498400b2 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/30337 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Tristan Corrick <tristan@corrick.kiwi> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-12-19util/cbfstool/cbfs-mkstage: Support x86_64Patrick Rudolph
Add support for relocations on x86_64. Required for 64bit romstage. Change-Id: I1ff223d3476776297b501813a953356dd6fa9d67 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/c/30115 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-12-19util/cbfstool: Support AMD64 rmodulesPatrick Rudolph
Add support for 64bit rmodule, as required for relocatable ramstage on x86_64. Change-Id: I7fbb3b4c0f76ce82c090b5f16f67a728b6bf94a5 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/c/29874 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-11-23util/cbfstool: Fix GCC error due to a shadowed declarationWerner Zeh
There is already a function with the name buffer_size(). Adding a local variable with the same name will lead to the following error on older GCC versions (e.g. version 4.4.7): declaration of 'buffer_size' shadows a global declaration To fix this rename the local variable to buffer_len. Change-Id: Ifae3a17152f2f9852d29a4ac038f7e5a75a41614 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/29776 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Joel Kitching <kitching@google.com> Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
2018-11-22util/cbfstool/rmodule.{c,h}: Fix typo and correct headerFrans Hendriks
Header contains ':' in copyright line. rmdoule is a typo Remove the ';' and correct typo to rmodule. BUG=N/A TEST=N/A Change-Id: I05b1fb80a81682646c9fba3d234de235b6bc9e8c Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/29794 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2018-11-17treewide: use /usr/bin/env where appropriateYegor Timoshenko
Some Unix systems (GuixSD, NixOS) do not install programs like Bash and Python to /usr/bin, and /usr/bin/env has to be used to locate these instead. Change-Id: I7546bcb881c532adc984577ecb0ee2ec4f2efe00 Signed-off-by: Yegor Timoshenko <yegortimoshenko@riseup.net> Reviewed-on: https://review.coreboot.org/28953 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-11-16util/cbsftool: allow enabling verbose make outputVadim Bendebury
Sometimes it is necessary to be able to see exact command lines used when compiling and linking. Use the same scheme as some other Makefile's - enable verbose output when variable V is set to 1. TEST=tried building cbfstool with V=1, observed verbose output. Change-Id: Iff25439aabff79e69d1d94a2c51c60bb0e0d7b80 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/29431 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-11-16cbfstool: add unprocessed flag for file exportingJoel Kitching
Add an unprocessed flag (-U) which modifies how files are exported. In the case of a compressed raw file, extract without decompressing. In the case of a stage or payload, extract without decompressing or converting to an ELF. This can be useful for verifying the integrity of a stage or payload, since converting to an ELF may not be a deterministic process on different platforms or coreboot versions. BUG=b:111577108 TEST=USE=cb_legacy_tianocore emerge-eve edk2 coreboot-utils chromeos-bootimage cd /build/eve/firmware /build/eve/usr/bin/cbfstool image.bin extract -r RW_LEGACY \ -n payload -f /tmp/payload_1 -U START=$((16#`xxd -s 20 -l 4 -p tianocore.cbfs`)) SIZE=$((16#`xxd -s 8 -l 4 -p tianocore.cbfs`)) dd if=tianocore.cbfs skip=$START count=$SIZE bs=1 > /tmp/payload_2 diff /tmp/payload_1 /tmp/payload_2 rm /tmp/payload_1 /tmp/payload_2 Change-Id: I351d471d699daedd51adf4a860661877f25607e6 Signed-off-by: Joel Kitching <kitching@chromium.org> Reviewed-on: https://review.coreboot.org/29616 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-11-16util/cbfstool/cbfs_image.c: Get rid of void pointer mathRichard Spiegel
Pointer math with void pointers is illegal in many compilers, though it works with GCC because it assumes size of void to be 1. Change the pointers or add parenthesis to force a proper order that will not cause compile errors if compiled with a different compiler, and more importantly, don't have unsuspected side effects. BUG=b:118484178 TEST=Build CBFS with original code, run objdump and saved output. Added modifications, build cbfs again, run objdump again, compared objdump outputs. Change-Id: I30187de8ea24adba41083f3bfbd24c0e363ee4b8 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/29440 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2018-10-14cbfstool: make comments more consistentJoel Kitching
Fix a typo and make comments more consistent (start with capital letter). BUG=None TEST=None Change-Id: I97bff5e05596fc6973f0729e276a2e45b291120d Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/29025 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
2018-10-08Move compiler.h to commonlibNico Huber
Its spreading copies got out of sync. And as it is not a standard header but used in commonlib code, it belongs into commonlib. While we are at it, always include it via GCC's `-include` switch. Some Windows and BSD quirk handling went into the util copies. We always guard from redefinitions now to prevent further issues. Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/28927 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-10-04cbfstool: Clear entry being removed in all casesDaisuke Nojiri
Currently, an entry being removed is cleared only if the next entry is also null or deleted. This patch ensures the entry being removed is cleared regardless of the next entry type. BUG=chromium:889716 BRANCH=none TEST=Run cbfstool bios.bin remove -n ecrw. Verify bios.bin has 0xFF in the space of the removed entry. TEST=Run cbfstool bios.bin remove -n fallback/payload (located at the end). Verify fallback/payload is removed. TEST=Run sign_official_build.sh on recovery_image.bin. Extract firmware contents from chromeos-firmwareupdate in the resigned image. Run 'futility vbutil_firmware --verify' for vblock_A's and FW_MAIN_A extracted from bios.bin. See the bug for details. Change-Id: I62540483da6cc35d0a604ec49b2f2b7b11ba9ce5 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://review.coreboot.org/28886 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-28util/cbfstool: Fix typosElyes HAOUAS
Change-Id: I6967a106ce1286d633ddeeb041f582e65f9ea78c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/28208 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2018-07-27cbfstool: fix implicit declaration of strcasecmpFelix Held
Change-Id: Iefeb47bca3676a1f807b7a66b74a07491e351362 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/27632 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-07-26util: Add description.md to each utilTom Hiller
Descriptions are taken from the files themselves or READMEs. Description followed by a space with the language in marked up as code. Change-Id: I5f91e85d1034736289aedf27de00df00db3ff19c Signed-off-by: Tom Hiller <thrilleratplay@gmail.com> Reviewed-on: https://review.coreboot.org/27563 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-07-24cbfstool/extract: ignore compression field for some payload segmentsJoel Kitching
When extracting a payload from CBFS, ignore compression fields for these types of payload segments: - PAYLOAD_SEGMENT_ENTRY - PAYLOAD_SEGMENT_BSS - PAYLOAD_SEGMENT_PARAMS These types of payload segments cannot be compressed, and in certain cases are being erroneously labeled as compressed, causing errors when extracting the payload. For an example of this problem, see creation of PAYLOAD_SEGMENT_ENTRY segments in cbfs-mkpayload.c, where the only field that is written to is |load_addr|. Also, add a linebreak to an ERROR line. BUG=https://ticket.coreboot.org/issues/170 TEST=cbfstool tianocore.cbfs extract -m x86 -n payload -f /tmp/payload -v -v Change-Id: I8c5c40205d648799ea577ad0c5bee6ec2dd7d05f Signed-off-by: kitching@google.com Reviewed-on: https://review.coreboot.org/27520 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-20util/cbfstool: fix build with clangPatrick Georgi
Without the second set of braces it fails (due to -Werror) with "suggest braces around initialization of subobject" Change-Id: I63cb01dd26412599551ee921c3215a4aa69f4e17 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/27551 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-19cbfstool/add-payload: initialize segment headers to 0Joel Kitching
Some types of payload segment headers do not use all fields. If these unused fields are not initialized to 0, they can cause problems in other software which consumes payloads. For example, PAYLOAD_SEGMENT_ENTRY does not use the compression field. If it happens to be a non-existent compression type, the 'cbfstool extract' command fails. BUG=https://ticket.coreboot.org/issues/170 TEST=cbfstool tianocore.cbfs create -s 2097152 -m x86 cbfstool tianocore.cbfs add-payload -f UEFIPAYLOAD.fd -n payload -c lzma -v xxd tianocore.cbfs | head # visually inspect compression field for 0 Change-Id: I359ed117ab4154438bac7172aebf608f7a022552 Signed-off-by: kitching@google.com Reviewed-on: https://review.coreboot.org/27540 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-07-18linux_trampoline: use trampoline RAM for the GDTRonald G. Minnich
The linux trampoline was modifying the existing GDT to add the 0x10 and 0x18 descriptors for Linux. This will not work when the existing GDT is in ROM. Change the code to set up a new GDT in what we know to be RAM. Tested by booting a linux payload. The main reason this works is that Linux almost immediately loads its own GDT and then segment registers. This GDT is a very temporary bridge. Note that none of this change used to be necessary; the coreboot GDT was originally compatible with Linux (ca 2000); then Linux changed. Change-Id: I13990052fbfd6a500adab8a2db8f7aead1d24fa6 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/27529 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-07-13cbfstool: Show current FMAP region in printPatrick Rudolph
In case multiple FMAP regions are specified, print the FMAP name. Useful if VBOOT is enabled and multiple CBFS are printed. Change-Id: Id6f29ebeda8a9bde6dfe39362e0f2a5e33c86b26 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/26862 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-06util/cbfstool/compiler: __attribute redefinitionFrans Hendriks
In Windows Cygwin enviroment, compiler reports redefinition error at cbfstool/ifwitool.c on _packed and __aligned. Skip new defines when vales are already defined. Change-Id: I3af3c6b8fc57eee345afcef2f871b897138f78ce Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/27357 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-06-30cbfstool: fix FIT entry checksum type value for ucode entriesMatt DeVillier
commit c1072f2 [cbfstool: Update FIT entries in the second bootblock] incorrectly changed the value of type_checksum_valid for microcode entries from FIT_TYPE_MICROCODE to 0, breaking microcode loading on Skylake/FSP1.1 devices (and others?). Correct this by reverting to the previous value. Test: build/boot google/chell, observe FspTempRamInit no longer fails, device boots as expected. Change-Id: Ib2a90137c7d4acf6ecd9f06cb6f856bd7e783676 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/27266 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Naresh Solanki <naresh.solanki@intel.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-26cbfstool: Update FIT entries in the second bootblockRizwan Qureshi
Once a second bootblock has been added using topswap (-j) option, Update the entries in second FIT using -j option with update-fit command. Additionally add a -q option which allows to insert the address of a FMAP region (which should hold a microcode) as the first entry in the second FIT. BUG=None BRANCH=None TEST= Create ROM images with -j options and update FIT using -q option. example: ./build/util/cbfstool/cbfstool coreboot.tmp create \ -M build/fmap.fmap -r COREBOOT,FW_MAIN_A,FW_MAIN_B,RW_LEGACY build/util/cbfstool/cbfstool coreboot.tmp add \ -f build/cbfs/fallback/bootblock.bin -n bootblock -t \ bootblock -b -49152 -j 0x10000 build/util/cbfstool/cbfstool coreboot.tmp add-master-header -j 0x10000 build/util/cbfstool/cbfstool coreboot.tmp add -f build/cpu_microcode_blob.bin \ -n cpu_microcode_blob.bin -t microcode -r COREBOOT -a 16 build/util/cbfstool/cbfstool coreboot.tmp. update-fit \ -n cpu_microcode_blob.bin -x 4 -j 0x10000 -q FW_MAIN_A Also try the failure scenarion by providing invalid topswap size. Change-Id: I9a417031c279038903cdf1761a791f2da0fe8644 Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-on: https://review.coreboot.org/26836 Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-26cbfstool: add an option for creating a topswap bootblockRizwan Qureshi
Add an option '-j' which takes the size of topswap boundary. This option serves both as a bool and a size for creating a second bootblock to be used with topswap feature in Intel CPUs. '-j' is also used in conjunction with add-master-header to update the location of cbfs master header in the second bootblock. BUG=None BRANHC=None TEST=add bootblock entry to the image with -j option specifying different topswap sizes and also use the -j option for add-master-header. Change-Id: I3e455dc8b7f54e55f2229491695cf4218d9cfef8 Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Signed-off-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-on: https://review.coreboot.org/22537 Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-22cbfstool/fit.c: Fix for older CPUs without total_size in mcu_headerArthur Heymans
Some older CPUs have a fixed size of 2048 bytes for microcode total size. Change-Id: Ia50c087af41b0df14b607ce3c3b4eabc602e8738 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/27090 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-18cbfstool: Use endian.h and functions from commonlibWerner Zeh
The endian conversion function be32toh() is defined in src/include/endian.h, however this file is not used for cbfstool compilation. Currently the one provided by the host is used and if the host does not provide this endian.h file, the build will fail. However, we do have endian conversion functions in commonlib/endian.h which is available for cbfstool compilation. Switch from be32toh() to read_be32() in order to avoid relying on a host provided include file. We use functions from commonlib/endian.h already in cbfstool. Change-Id: I106274cf9c69e1849f848920d96a61188f895b36 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/27116 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-06-15util/cbfstool: Support FIT payloadsPatrick Rudolph
In order to support booting a GNU/Linux payload on non x86, the FIT format should be used, as it is the defacto standard on ARM. Due to greater complexity of FIT it is not converted to simple ELF format. Add support for autodecting FIT payloads and add them as new CBFS_TYPE 'fit'. The payload is included as is, with no special header. The code can determine the type at runtime using the CBFS_TYPE field. Support for parsing FIT payloads in coreboot is added in a follow on commit. Compression of FIT payloads is not supported, as the FIT sections might be compressed itself. Starting at this point a CBFS payload/ can be either of type FIT or SELF. Tested on Cavium SoC. Change-Id: Ic5fc30cd5419eb76c4eb50cca3449caea60270de Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25860 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-06-04util/cbfstool: Remove whitespace before tabElyes HAOUAS
Change-Id: I122acaf9129afaa7b3ae8fd50d8717138809132e Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26669 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-05-22cbfs-compression-tool: Add raw compression supportJulius Werner
This patch adds a new "rawcompress" command to cbfs-compression-tool, that works exactly the same as "compress" except that it doesn't add the custom 8-byte header to the file. This can be useful if you need to compress something into a format that coreboot's decompression routines can work with, but it's not supposed to go into CBFS. Change-Id: I18a97a35bb0b0f71f3226f97114936dc81d379eb Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/26337 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-21cbfs-compression-tool: Fix minor edge cases in algorithm type parsingJulius Werner
This patch adds two minor improvements to the way cbfs-compression-tool parses the compression algorithm type that is passed through the -t option of the 'compress' subcommand. These improvements are intended to prevent accidents and unexpected behavior when using the cbfs-compression-tool, in particular in automated contexts such as a Makefile rule. In the first part of this patch, a return statement is inserted after the 'if (algo->name == NULL)' check of the compress() function. This causes the function to exit immediately and subsequently abort the program when the algorithm type was not detected correctly. Previously, execution would continue with the 'algo' pointer pointing to the zeroed out stopper entry of the types_cbfs_compression[] array. The ultimate effect of this would be to pass 0 as 'algo->type' to the compression_function() function, which happens to be the same enumeration value as is used for CBFS_COMPRESS_NONE, leading to a valid compression function result that matches the behavior of no compression. Thus, if a script calling cbfs-compression-tool compress contained a typo in the -t parameter, it would continue running with an unintended compression result rather than immediately exiting cleanly. In the second part of this patch, the strcmp() function is replaced with strcasecmp() when comparing 'algo->name' with the 'algoname' parameter that was passed to the compress() function. strcasecmp() uses an identical function signature as strcmp() and is thus suitable as a drop-in replacement, but it differs in behavior: rather than only returning a result of 0 when the two NULL-terminated input strings are character by character identical, the strcasecmp() function applies a weaker concept of identity where characters of the latin alphabet (hexadecimal ranges 0x41 through 0x5a and 0x61 through 0x7a) are also considered identical to other characters that differ from them only in their case. This causes the -t parameter of cbfs-compression-tool compress to also accept lowercase spellings of the available compression algorithms, such as "lz4" instead of "LZ4" and "lzma" instead of "LZMA". As an unintended but harmless side-effect, mixed-case spellings such as "lZ4" or "LZmA" will also be recognized as valid compression algorithms. (Note that since the character "4" (hexadecimal 0x34) of the "LZ4" compression type name is not part of the above-mentioned ranges of latin alphabet characters, no new substitutions become valid for that part of the "LZ4" string with this patch.) Change-Id: I375dbaeefaa0d4b0c5be81bf7668f8f330f1cf61 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/26389 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-05-18cbfstool: Drop `-t` parsing for `add-payload` commandNico Huber
It seems this was never used and the usage doesn't mention it either. Change-Id: I9240c0ed5453beff6ae46fae3748c68a0da30477 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/26324 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-16Revert "cbfs/payload type: Fix build warning and whitespace in name"Ronald G. Minnich
This reverts commit 717ba748366cda19b7532897a5b8d59fc2cd25d9. This breaks seabios and a few other payloads. This is not ready for use. Change-Id: I48ebe2e2628c11e935357b900d01953882cd20dd Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/26310 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-05-15cbfs/payload type: Fix build warning and whitespace in namePaul Menzel
Currently, adding a payload to CBFS using the build system, the warning below is shown. W: Unknown type 'payload' ignored Update payload type from "simple elf" to "simple_elf" and rename the word "payload" to "simple_elf" in all Makefiles. Fixes: 4f5bed52 (cbfs: Rename CBFS_TYPE_PAYLOAD to CBFS_TYPE_SELF) Change-Id: Iccf6cc889b7ddd0c6ae04bda194fe5f9c00e495d Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/26240 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-04cbfs: Rename CBFS_TYPE_PAYLOAD to CBFS_TYPE_SELFPatrick Rudolph
In preparation of having FIT payloads, which aren't converted to simple ELF, rename the CBFS type payload to actually show the format the payload is encoded in. Another type CBFS_TYPE_FIT will be added to have two different payload formats. For now this is only a cosmetic change. Change-Id: I39ee590d063b3e90f6153fe655aa50e58d45e8b0 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25986 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-04-30cbfstool: Add region offset information to layout commandWerner Zeh
The layout command prints all FMAP regions in the final image among with the region size. Extend this command to show the offset of each region in the image. Change-Id: I5f945ba046bd2f1cb50a93e90eb887f60c6fde8a Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/25851 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-11util/cbfstool: Print all supported architecturesJonathan Neuschäfer
The list of supported architectures in the usage output of cbfstool is currently hardcoded and outdated. Use the arch_names array in common.c to provide and up-to-date list. Change-Id: I3e7ed67c3bfd928b304c314fcc8e1bea35561662 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25590 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-04-11util/cbfstool: Print types on stdoutJonathan Neuschäfer
Currently, "cbfstool -h | less" doesn't show any file types under "TYPEs:". That's because the file types are printed with print_supported_filetypes, which uses LOG, which prints to stderr. Use printf print_supported_filetypes, and thus print to stdout, to make the usage output more normal. Change-Id: I800c9205c59383b63a640bc0798a1bd9117b0f99 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25589 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-03-06cbfstool: Add install target to MakefileDenis 'GNUtoo' Carikli
Change-Id: I5df7033e1e52c78e97cdbd26aef2d7824ea67f8b Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/12403 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-01-20drivers/mrc_cache: Always generate an FMAP regionArthur Heymans
This automatically generates an FMAP region for the MRC_CACHE driver which is easier to handle than a cbfsfile. Adds some spaces and more comments to Makefile.inc to improve readability. Tested on Thinkpad x200 with some proof of concept patches. Change-Id: Iaaca36b1123b094ec1bbe5df4fb25660919173ca Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/23150 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2017-12-20util/cbfstool: Check for NULL before dereferenceMartin Roth
Fixed coverity issue: 1302455 - Dereference null return value Change-Id: I59b908adc4d35f08fda8e4ad3f806714f2caeb65 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/22900 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-12-19util/cbfstool: calculate cbfs file size for xip stagesAaron Durbin
The initial lookup for cbfs location for xip stages is implicitly using the ELF size assuming it's relatively equivalent. However, if the ELF that is being converted contains debug information or other metadata then the location lookup can fail because the ELF is considerably bigger than the real footprint. BUG=b:70801221 Change-Id: I47024dcd8205a09885d3a3f76e255eb5e3c55d9e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/22936 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-12-08cbfstool: Add '-p' option for paddingDaisuke Nojiri
This patch adds '-p' to the 'add' command. It allows the add command to specify the size of the padding added with the file being added. This is useful to reserve an extra space in case the file is too big to be relocated. BUG=b:68660966 BRANCH=none TEST=emerge-fizz coreboot && cbfstool image.bin add -n ecrw -f EC_RW.bin -p 0x10 ... Verify image.bin has extra space in the file header. Change-Id: I64bc54fd10a453b4da467bc69d9590e61b0f7ead Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://review.coreboot.org/22239 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2017-10-28cbfstool: Print compression algorithmDaisuke Nojiri
This patch adds a column to the print command to show the compression algorithm used for the file. Name Offset Type Size Comp fallback/romstage 0x0 stage 56236 none ecrw 0xf2380 raw 62162 LZMA (131072 decompressed) BUG=b:66956286 BRANCH=none TEST=Run 'cbfstool image.bin print' Change-Id: I4bbb60ab467adac4ae5486ddafec86ad9682a40e Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://review.coreboot.org/22196 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2017-10-10util/cbfstool: Add "truncate" commandPatrick Georgi
It does the opposite to "expand", removing a trailing empty file from CBFS. It also returns the size of the CBFS post processing on stdout. BUG=b:65853903 BRANCH=none TEST=`cbfstool test.bin truncate -r FW_MAIN_A` removes the trailing empty file in FW_MAIN_A. Without a trailing empty file, the region is left alone (tested using COREBOOT which comes with a master header pointer). Change-Id: I0c747090813898539f3428936afa9d8459adee9c Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/21608 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-09-20util/cbfstool: Add "expand" command to make CBFS span an fmap regionPatrick Georgi
vboot images come with multiple regions carrying CBFS file systems. To expedite hashing (from slow flash memory), the FW_MAIN_* regions are truncated since they typically have pretty large unused space at the end that is of no interest. For test purposes it can be useful to re-engage that space, so add a command that creates a new empty file entry covering that area (except for the last 4 bytes for the master header pointer, as usual). BUG=b:65853903 BRANCH=none TEST=`cbfstool test.bin expand -r FW_MAIN_A` creates a new empty file of the expected size on a Chrome OS firmware image. Change-Id: I160c8529ce4bfcc28685166b6d9035ade4f6f1d1 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/21598 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-09-13rmodtool: Increase limit on number of symbolsDamien Zammit
An internal index `i` was previously allocated as Elf64_Half which is uint16_t. Bumping to uint64_t increases the number of allowed symbols and prevents a segfault in processing a larger ramstage.debug file. Also introduce a separate counter for the number of sections. Change-Id: I9ad2f64c452cef2e7bf957f766600891cb5ae798 Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/21360 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-08-11util/cbmem, util/cbfstool: resolve macro errors on FreeBSDIdwer Vollering
Using sys/cdefs.h would come to mind, however this include would not solve the build error. Built and runtime tested on FreeBSD 12.0-CURRENT, r322031 Change-Id: I6ec9bc7fea72aa69a41439e002f381bd5e5b6bc6 Signed-off-by: Idwer Vollering <vidwer@gmail.com> Reviewed-on: https://review.coreboot.org/20924 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-08-08add __must_check to */compiler.hCaveh Jalali
the __must_check function attribute is pretty much straight from the linux kernel - used to encourage callers to consume function return values. Change-Id: I1812d957b745d6bebe2a8d34a9c4862316aa8530 Signed-off-by: Caveh Jalali <caveh@google.com> Reviewed-on: https://review.coreboot.org/20881 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-02util/cbfstool: Fix build with armv7-eabi cross compilerPatrick Georgi
We recently changed all PACKED, __PACKED, __attribute__((packed)) ... to __packed to gain some consistency. In cbfstool we use compiler.h to provide that where necessary. The cross compiler I use doesn't provide __packed by itself, but liblz4 doesn't compensate for that. Therefore include compiler.h, and to avoid adding dependencies to non-liblz4 code, do so through the command line. Change-Id: I581e45639ac3e103af7c16793e8effe2e632dec7 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/20836 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2017-07-13Rename __attribute__((packed)) --> __packedStefan Reinauer
Also unify __attribute__ ((..)) to __attribute__((..)) and handle ((__packed__)) like ((packed)) Change-Id: Ie60a51c3fa92b5009724a5b7c2932e361bf3490c Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/15921 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-07-07util/cbfstool: demote FV handling errors to debugPatrick Georgi
It's rather normal that a few bytes are skipped. Change-Id: I9371afdbb3ad05de7645bfbf257e4f4bfa2feddb Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/20469 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2017-07-07util/cbfstool: demote not-ELF error to debugPatrick Georgi
It's irritating when adding tianocore payloads - those are not ELF, but that's deliberate. Change-Id: I76d9367b28545348f526e5f0b8216f9ff2a3d636 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/20468 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2017-06-27util: change coreboot to lowercaseMartin Roth
The word 'coreboot' should always be written in lowercase, even at the start of a sentence. Change-Id: I0a024d82d331c0794fe087e440b4e1924129a13c Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20030 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2017-06-06util/cbfstool/lz4frame.c: Add comment to fall throughArthur Heymans
GCC7 has a new feature called -Wimplicit-fallthrough enabled by default which checks for fallthrough in switch statements which is a common error. When a fallthrough is actually intended a comment saying so will satisfy GCC. Fixes cbfstool not building with GCC7. Change-Id: I83252fc96be7ce0971d4251b0fc88fbbd7440e71 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/20036 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-06-04console/flashsconsole: Add spi flash console for debuggingYouness Alaoui
If CONSOLE_SPI_FLASH config is enabled, we write the cbmem messages to the 'CONSOLE' area in FMAP which allows us to grab the log when we read the flash. This is useful when you don't have usb debugging, and UART lines are hard to find. Since a failure to boot would require a hardware flasher anyways, we can get the log at the same time. This feature should only be used when no alternative is found and only when we can't boot the system, because excessive writes to the flash is not recommended. This has been tested on purism/librem13 v2 and librem 15 v3 which run Intel Skylake hardware. It has not been tested on other archs or with a driver other than the fast_spi. Change-Id: I74a297b94f6881d8c27cbe5168f161d8331c3df3 Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm> Reviewed-on: https://review.coreboot.org/19849 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
2017-05-27cbfscomptool: fix display of time_tMike Frysinger
Not all systems have sizeof(time_t) == sizeof(long), so cast the delta here to a long to match the %ld format. Change-Id: If235577fc35454ddb15043c5a543f614b6f16a9e Signed-off-by: Mike Frysinger <vapier@chromium.org> Reviewed-on: https://review.coreboot.org/19902 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-03-29cbfstool/ifwitool: Remove unnecessary assignmentPaul Menzel
Fix the warning below. ``` util/cbfstool/ifwitool.c:551:2: warning: Value stored to 'offset' is never read offset = read_member(data, offset, sizeof(h->fit_tool_version), ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` Found-by: scan-build from clang 3.8.1 Change-Id: I6c322a335a371a20561b32e04e7dcc7310dab607 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/18667 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-03-20util/cbfstool: avoid memleaks and off-by-onesPatrick Georgi
Change-Id: Iac136a5dfe76f21aa7c0d5ee4e974e50b955403b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: scan-build 3.8 Reviewed-on: https://review.coreboot.org/18134 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-01-24cbfs-compression-tool: catch compression failuresPatrick Georgi
If compression failed, just store the uncompressed data, which is what cbfstool does as well. Change-Id: I67f51982b332d6ec1bea7c9ba179024fc5344743 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/18201 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2017-01-18cbfstool: Don't use le32toh(), it's non-standardNico Huber
It's a BSD function, also, we missed to include `endian.h`. Just including `endian.h` doesn't fix the problem for everyone. Instead of digging deeper, just use our own endian-conversion from `commonlib`. Change-Id: Ia781b2258cafb0bcbe8408752a133cd28a888786 Reported-by: Werner Zeh <werner.zeh@siemens.com> Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/18157 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2017-01-13util/cbfstool: Enable adding precompressed files to cbfsPatrick Georgi
cbfstool ... add ... -c precompression assumes the input file to be created by cbfs-compression-tool's compress command and uses that to add the file with correct metadata. When adding the locale_*.bin files to Chrome OS images, this provides a nice speedup (since we can parallelize the precompression and avoid compressing everything twice) while creating a bit-identical file. Change-Id: Iadd106672c505909528b55e2cd43c914b95b6c6d Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/18102 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-01-12util/cbfstool: Add cbfs-compression-toolPatrick Georgi
cbfs-compression-tool provides a way to benchmark the compression algorithms as used by cbfstool (and coreboot) and allows to pre-compress data for later consumption by cbfstool (once it supports the format). For an impression, the benchmark's results on my machine: measuring 'none' compressing 10485760 bytes to 10485760 took 0 seconds measuring 'LZMA' compressing 10485760 bytes to 1736 took 2 seconds measuring 'LZ4' compressing 10485760 bytes to 41880 took 0 seconds And a possible use for external compression, parallel and non-parallel (60MB in 53 files compressed to 650KB on a machine with 40 threads): $ time (ls -1 *.* |xargs -n 1 -P $(nproc) -I '{}' cbfs-compression-tool compress '{}' out/'{}' LZMA) real 0m0.786s user 0m11.440s sys 0m0.044s $ time (ls -1 *.* |xargs -n 1 -P 1 -I '{}' cbfs-compression-tool compress '{}' out/'{}' LZMA) real 0m10.444s user 0m10.280s sys 0m0.064s Change-Id: I40be087e85d09a895b1ed277270350ab65a4d6d4 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/18099 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2017-01-12util/cbfstool: compile with -O2 by defaultPatrick Georgi
This speeds up the lzma encoder approximately four-fold. Change-Id: Ibf896098799693ddd0f8a6c74bda2e518ecea869 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/18098 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-01-04util/cbfstool: Fix to build with latest llvmManoj Gupta
cbfs-payload-linux.c:255:43: note: add parentheses around left hand side expression to silence this warning if ((hdr->protocol_version >= 0x200) && (!hdr->loadflags & 1)) { [pg: also fix the semantics. Thanks Nico for catching this] BUG=chromium:665657 TEST=coreboot-utils builds Change-Id: I025c784330885cce8ae43c44f9d938394af30ed5 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 35c4935f2a89c3d3b45213372bcf0474a60eda43 Original-Change-Id: I8758e7d158ca32e87107797f2a33b9d9a0e4676f Original-Reviewed-on: https://chromium-review.googlesource.com/411335 Original-Commit-Ready: Manoj Gupta <manojgupta@chromium.org> Original-Tested-by: Manoj Gupta <manojgupta@chromium.org> Original-Reviewed-by: Mike Frysinger <vapier@chromium.org> Reviewed-on: https://review.coreboot.org/17568 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-01-02util/cbfstool: Don't print region information on stderr by defaultPatrick Georgi
It's usually not too interesting, so hide it behind -v. Change-Id: Icffb5ea4d70300ab06dfa0c9134d265433260368 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/17899 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-15util/cbfstool: Handle error condition more carefullyPatrick Georgi
Change-Id: I72a7776d530d1cf0b8fa39e558990df3dc7f7805 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: Coverity Scan #1295494 Reviewed-on: https://review.coreboot.org/17861 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins)
2016-12-15util/cbfstool: check that buffer_create workedPatrick Georgi
We might not care much about this buffer, but we really use it later on... Change-Id: Ia16270f836d05d8b454e77de7b5babeb6bb05d6d Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: Coverity Scan #1294797 Reviewed-on: https://review.coreboot.org/17860 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins)
2016-12-15util/cbfstool: Fix memory leakPatrick Georgi
Change-Id: I66cb1c88155ef58610bacfb899e0132e4143c7ac Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: Coverity Scan #1325836 Reviewed-on: https://review.coreboot.org/17859 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-12-15util/cbfstool: Add NULL-ptr checkPatrick Georgi
Change-Id: I8b5caf5423135fe683a24db6700b895a2685cb98 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: Coverity Scan #1323507 Reviewed-on: https://review.coreboot.org/17858 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-12-13util/cbfstool: Enable filling fmap regions with a given valuePatrick Georgi
So far, cbfstool write, when used with the -u/-d options (to "fill upwards/downwards") left the parts of the region alone for which there was no new data to write. When adding -i [0..255], these parts are overwritten with the given value. BUG=chromium:595715 BRANCH=none TEST=cbfstool write -u -i 0 ... does the right thing (fill the unused space with zeroes) Change-Id: I1b1c0eeed2862bc9fe5f66caae93b08fe21f465c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: baf378c5f2afdae9946600ef6ff07408a3668fe0 Original-Change-Id: I3752f731f8e6592b1a390ab565aa56e6b7de6765 Original-Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/417319 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: https://review.coreboot.org/17787 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-12-13util/cbfstool: require -i argument for cbfstool add-intPatrick Georgi
We never specified what value add-int should write by default. Change-Id: I240be4842fc374690c4a718fc4d8f0a03d63003c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/17796 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-12-04cbfstool: Fix off-by-one error in checking hash_typeFurquan Shaikh
Change-Id: Iaf208705d0cd450288af721d53053b2d3407a336 Found-by: Coverity Scan #1325836 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17698 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-10-17cbfstool: Fix typo in help textPatrick Georgi
Change-Id: Ic5a3be1128f2f9a53d21e0a2c577192962260df6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/17018 Tested-by: build bot (Jenkins) Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-10-17util/cbfstool: Allow overwriting CBFS regions with raw data on requestPatrick Georgi
Add a --force/-F option and enable it for cbfstool write, where it has the effect of not testing if the fmap region contains a CBFS or if the data to write is a CBFS image. Change-Id: I02f72841a20db3d86d1b67ccf371bd40bb9a4d51 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/16998 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-28cbfstool: set init_size for linux payloads.Ronald G. Minnich
We were not setting the init_size for linux payloads. A proper value of init_size is required if the kernel is x86_64. This is tested in qemu and fixes the observed problem that 974f221c84b05b1dc2f5ea50dc16d2a9d1e95eda and later would not boot, and would in fact fail in head_64.S. Change-Id: I254c13d16b1e014a6f1d4fd7c39b1cfe005cd9b0 Signed-off-by: Ronald G. Minnich <rminnich@google.com> Reviewed-on: https://review.coreboot.org/16781 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
2016-08-27cbfs: Add "struct" file type and associated helpersJulius Werner
This patch adds functionality to compile a C data structure into a raw binary file, add it to CBFS and allow coreboot to load it at runtime. This is useful in all cases where we need to be able to have several larger data sets available in an image, but will only require a small subset of them at boot (a classic example would be DRAM parameters) or only require it in certain boot modes. This allows us to load less data from flash and increase boot speed compared to solutions that compile all data sets into a stage. Each structure has to be defined in a separate .c file which contains no functions and only a single global variable. The data type must be serialization safe (composed of only fixed-width types, paying attention to padding). It must be added to CBFS in a Makefile with the 'struct' file processor. Change-Id: Iab65c0b6ebea235089f741eaa8098743e54d6ccc Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16272 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-08-10util/cbfstool: Initialize elf_writer pointer to avoid crashJonathan Neuschäfer
If some error happens in cbfs_payload_make_elf, the code jumps to "out", and elf_writer_destroy(ew) is called. This may happen before an elf writer is allocated. To avoid accessing an uninitialized pointer, initialize ew to NULL; elf_writer_destroy will perform no action in this case. Change-Id: I5f1f9c4d37f2bdeaaeeca7a15720c7b4c963d953 Reported-By: Coverity Scan (1361475) Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/16124 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>