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path: root/util/cbfstool/elfparsing.h
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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>
2016-08-08cbfstool/elfheaders: Make elf_writer_destroy NULL-safeFurquan Shaikh
This relieves caller from having to check if the parameter being passed in is NULL. Change-Id: I3ea935c12d46c6fb5534e0f2077232b9e25240f1 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/16076 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-29cbfstool: add ELF symbol, relocation, and string table supportAaron Durbin
In order to convert rmodules back into ELF files one needs to add in the relocations so they can be converted back to rmodules. Because of that requirement symbol tables need to be present because the relocations reference the symbols. Additionally, symbol tables reference a string table for the symbol names. Provide the necessary support for adding all of those things to an ELF writer. TEST=Extracted rmodule from a cbfs and compared with the source ELF file. Confirmed relocations and code sizes are correct. Change-Id: I07e87a30b3371ddedabcfc682046e3db8c956ff2 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/12221 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-10-29cbfstool: add ELF header initialization helperAaron Durbin
In order for one to extract ELF files from cbfs it's helpful to have common code which creates a default executable ELF header for the provided constraints. BUG=None TEST=With follow up patch am able to extract out romstage as an ELF file. Change-Id: Ib8f2456f41b79c6c0430861e33e8b909725013f1 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/12218 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-05-21Remove address from GPLv2 headersPatrick Georgi
As per discussion with lawyers[tm], it's not a good idea to shorten the license header too much - not for legal reasons but because there are tools that look for them, and giving them a standard pattern simplifies things. However, we got confirmation that we don't have to update every file ever added to coreboot whenever the FSF gets a new lease, but can drop the address instead. util/kconfig is excluded because that's imported code that we may want to synchronize every now and then. $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} + $ find * -type f -a \! -name \*.patch \ -a \! -name \*_shipped \ -a \! -name LICENSE_GPL \ -a \! -name LGPL.txt \ -a \! -name COPYING \ -a \! -name DISCLAIMER \ -exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} + Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9233 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-04-25cbfstool: Clean up in preparation for adding new filesSol Boucher
This enables more warnings on the cbfstool codebase and fixes the issues that surface as a result. A memory leak that used to occur when compressing files with lzma is also found and fixed. Finally, there are several fixes for the Makefile: - Its autodependencies used to be broken because the target for the .dependencies file was misnamed; this meant that Make didn't know how to rebuild the file, and so would silently skip the step of updating it before including it. - The ability to build to a custom output directory by defining the obj variable had bitrotted. - The default value of the obj variable was causing implicit rules not to apply when specifying a file as a target without providing a custom value for obj. - Add a distclean target for removing the .dependencies file. BUG=chromium:461875 TEST=Build an image with cbfstool both before and after. BRANCH=None Change-Id: I951919d63443f2b053c2e67c1ac9872abc0a43ca Signed-off-by: Sol Boucher <solb@chromium.org> Original-Commit-Id: 49293443b4e565ca48d284e9a66f80c9c213975d Original-Change-Id: Ia7350c2c3306905984cfa711d5fc4631f0b43d5b Original-Signed-off-by: Sol Boucher <solb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/257340 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: http://review.coreboot.org/9937 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.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: 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>