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path: root/util/cbfstool/elfheaders.c
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2014-12-09aarch64: Add ELF supportMarcelo Povoa
BUG=None BRANCH=none TEST=Build coreboot Signed-off-by: Marcelo Povoa <marcelogp@chromium.org> Original-Change-Id: I38684794fdf5bd95a32f157128434a13f5e2a2d5 Original-Reviewed-on: https://chromium-review.googlesource.com/185271 Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Tested-by: Marcelo Póvoa <marcelogp@chromium.org> Original-Commit-Queue: Marcelo Póvoa <marcelogp@chromium.org> (cherry picked from commit 67b74d3dc98a773c3d82b141af178b13e9bb6c06) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Id82a31dc94bb181f2d24eddcbfbfb6d6cdc99643 Reviewed-on: http://review.coreboot.org/7659 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2014-10-16RISCV: add this architecture to cbfstoolRonald G. Minnich
Change-Id: I6d972e595f12585cda08e1a6d2b94b4bf4f212f5 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/7067 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-09-08ARM: Generalize armv7 as arm.Gabe Black
There are ARM systems which are essentially heterogeneous multicores where some cores implement a different ARM architecture version than other cores. A specific example is the tegra124 which boots on an ARMv4 coprocessor while most code, including most of the firmware, runs on the main ARMv7 core. To support SOCs like this, the plan is to generalize the ARM architecture so that all versions are available, and an SOC/CPU can then select what architecture variant should be used for each component of the firmware; bootblock, romstage, and ramstage. Old-Change-Id: I22e048c3bc72bd56371e14200942e436c1e312c2 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/171338 Reviewed-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 8423a41529da0ff67fb9873be1e2beb30b09ae2d) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> ARM: Split out ARMv7 code and make it possible to have other arch versions. We don't always want to use ARMv7 code when building for ARM, so we should separate out the ARMv7 code so it can be excluded, and also make it possible to include code for some other version of the architecture instead, all per build component for cases where we need more than one architecture version at a time. The tegra124 bootblock will ultimately need to be ARMv4, but until we have some ARMv4 code to switch over to we can leave it set to ARMv7. Old-Change-Id: Ia982c91057fac9c252397b7c866224f103761cc7 Reviewed-on: https://chromium-review.googlesource.com/171400 Reviewed-by: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 799514e6060aa97acdcf081b5c48f965be134483) Squashed two related patches for splitting ARM support into general ARM support and ARMv7 specific pieces. Change-Id: Ic6511507953a2223c87c55f90252c4a4e1dd6010 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6782 Tested-by: build bot (Jenkins)
2014-08-22elfheaders: fix 64-bit ELF writingAaron Durbin
The sh_flags for a 64-bit section header entry are 64-bit in size. Correct this. Change-Id: I2fa79d9a0fb46cc1dfa97c172357bbd2394843e0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/6737 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2014-08-10cbfstool: free stale memoryPatrick Georgi
The process probably terminates not much later, but in case anyone reuses the function in something with longer life-time, free unused resources. Change-Id: I10c471ee3d9dc9a3ebf08fe4605f223ea59b990e Found-by: Coverity Scan Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/6559 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-05-27util/cbfstool: Use `%zu` instead of `%ld` for size_t argumentsPaul Menzel
cbfstool fails to built under 32-bit platforms since commit aa2f739a cbfs: fix issues with word size and endianness. due to the use of '%ld' format specifier on size_t, which on these platforms is only 32-bit. No error is seen though, when cbfstool is built, when building a coreboot image, where it is put in `build/cbfstool`. Use the length modifier `z` for size_t arguments, and cast to size_t where appropriate. Change-Id: Id84a20fbf237376a31f7e4816bd139463800c977 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/5388 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@gmail.com>
2014-03-18cbfstool: add ELF writing supportAaron Durbin
In order to generate rmodules in the format of ELF files there needs to be support for writing out ELF files. The ELF writer is fairly simple. It accpets sections that can be associated with an optional buffer (file data). For each section flagged with SHF_ALLOC a PT_LOAD segment is generated. There isn't smart merging of the sections into a single PT_LOAD segment. Change-Id: I4d1a11f2e65be2369fb3f8bff350cbb28e14c89d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5377 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-03-14cbfstool: add symbol table parsing to the ELF parserAaron Durbin
Optionally parse the symbol table contained within an ELF file. It currently assumes there is only one symbol table present, and it errors out if more than one is found. Change-Id: I4ac4ad03184a319562576d8ab24fa620e701672a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5376 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-14cbfstool: add string table parsing to ELF parserAaron Durbin
Optionally parse the string tables within an ELF file. Change-Id: I89f9da50b4fcf1fed7ac44f00c60b495c35555ef Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5375 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-14cbfstool: add relocation parsing to ELF parserAaron Durbin
Optionally parse the relocation entries found within an ELF file. Change-Id: I343647f104901eb8a6a997ddf44aa5d36c31b44b Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5374 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-14cbfstool: introduce struct parsed_elf and parse_elf()Aaron Durbin
In order to make the ELF parsing more flexible introduce a parse_elf() function which takes a struct parsed_elf parameter. In addition take a flags parameter which instructs the ELF parser as to what data within the ELF file should be parsed. Change-Id: I3e30e84bf8043c3df96a6ab56cd077eef2632173 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5373 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: remove incorrect section size checkAaron Durbin
I was overzealous in checking the section size with respect to the file size. That check makes no sense as the section only deals with link sizes -- not on-disk sizes. Remove the check as it doesn't make any sense. Change-Id: I348e7847ae3a50badc22693439614f813462445a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5384 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: elfparsing: check segment and section regionsAaron Durbin
While parsing the section and program headers ensure the locations of their contents are within the elf file proper. Change-Id: I856f7de45f82ac15977abc06e51bedb51c58dde1 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5372 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: elfheaders: use proper parameters to calloc()Aaron Durbin
Though the result doesn't matter much, the callers of calloc() should order the parameters correctly. i.e. the first paramter is the number of elements in an array and the second is the size of each element. Change-Id: Ic7c2910d623d96f380feb4e5f6fa432376f49e9b Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5371 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: add eflparsing.hAaron Durbin
elfparsing.h serves as the header to working with the elf parser. Additionally, only include what is needed by the other files. Many had no reason to be including elf.h aside from fixing compilation problems when including cbfs.h. Change-Id: I9eb5f09f3122aa18beeca52d2e4dc2102d70fb9d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5370 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: move iself() to eflheaders.cAaron Durbin
The only user of iself() was in elfheaders.c. Move it there, and make it local to the compilation unit. Change-Id: I0d919ce372f6e2fce75885fb4fcba20d985979b3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5369 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-03-13cbfstool: elfheaders: use common checks and buffer helpersAaron Durbin
The elfheaders code was manipulating struct buffers. Use the introduced buffer helper functions. Additionally fix up offset and size checks for the program headers and section headers by using common code paths. Change-Id: I279c77f77aaa1860a0be43fb111df890dd1d84d5 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5368 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-02-04cbfstool: Eliminate global variable "arch"Alexandru Gagniuc
Now that unused functions have been removed, the global "arch" is only used in very few places. We can pack "arch" in the "param" structure and pass it down to where it is actually used. Change-Id: I255d1e2bc6b5ead91b6b4e94a0202523c4ab53dc Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/5105 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-02-02Add section header parsing and use it in the mk-payload stepRonald G. Minnich
This completes the improvements to the ELF file parsing code. We can now parse section headers too, across all 4 combinations of word size and endianness. I had hoped to completely remove the use of htonl until I found it in cbfs_image.c. That's a battle for another day. There's now a handy macro to create magic numbers in host byte order. I'm using it for all the PAYLOAD_SEGMENT_* constants and maybe we can use it for the others too, but this is sensitive code and I'd rather change one thing at a time. To maximize the ease of use for users, elf parsing is accomplished with just one function: int elf_headers(const struct buffer *pinput, Elf64_Ehdr *ehdr, Elf64_Phdr **pphdr, Elf64_Shdr **pshdr) which requires the ehdr and pphdr pointers to be non-NULL, but allows the pshdr to be NULL. If pshdr is NULL, the code will not try to read in section headers. To satisfy our powerful scripts, I had to remove the ^M from an unrelated microcode file. BUG=None TEST=Build a peppy image (known to boot) with old and new versions and verify they are bit-for-bit the same. This was also fully tested across all chromebooks for building and booting and running chromeos. BRANCH=None Change-Id: I54dad887d922428b6175fdb6a9cdfadd8a6bb889 Signed-off-by: Ronald G. Minnich <rminnich@google.com> Reviewed-on: https://chromium-review.googlesource.com/181272 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Ronald Minnich <rminnich@chromium.org> Tested-by: Ronald Minnich <rminnich@chromium.org> Signed-off-by: Ronald G. Minnich <rminnich@google.com> Reviewed-on: http://review.coreboot.org/5098 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>