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path: root/payloads/libpayload/libcbfs/cbfs.c
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2014-12-31libpayload: Fix pointer related castsFurquan Shaikh
Fix pointer related casts since this can create a problem for 64-bit systems. BUG=None BRANCH=None TEST=Compiled successfully for link, nyan using emerge-* libpayload Original-Change-Id: I4cbd2d9f1efaaac87c3eba69204337fd6893ed66 Original-Reviewed-on: https://chromium-review.googlesource.com/199564 Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Original-Tested-by: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit 914b118a64b0691aeca463dff24252db9c24109e) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I11f070ed5d3eddd8b9be30c428cb24c8439e617b Reviewed-on: http://review.coreboot.org/7905 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
2014-08-05libpayload: Change CONFIG_* to CONFIG_LP_* in the kconfig.Gabe Black
When libpayload header files are included in the payload itself, it's possible that the payloads config settings will conflict with the ones in libpayload. It's also possible for the libpayload config settings to conflict with the payloads. To avoid that, the libpayload config settings have _LP_ (for libpayload) added to them. The symbols themselves as defined in the Config.in files are still the same, but the prefix added to them is now CONFIG_LP_ instead of just CONFIG_. Change-Id: Ib8a46d202e7880afdeac7924d69a949bfbcc5f97 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/65303 Reviewed-by: Stefan Reinauer <reinauer@google.com> Tested-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 23e866da20862cace0ed2a67d6fb74056bc9ea9a) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6427 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-01-12lib/cbfs_core.c: Supply size of file as well in cbfs_get_file_contentVladimir Serbinenko
Change-Id: I5b93e5321e470f19ad22ca2cfdb1ebf3b340b252 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4659 Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Tested-by: build bot (Jenkins)
2013-09-03libpayload: reduce libcbfs verbosityPatrick Georgi
Prettier in real-world payloads (ie. FILO) Change-Id: I9ed968fe527c5d46090e707e2d89b7406a43662e Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/3887 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-08-15CBFS: Change how the bss is zeroed when loading a stage.Gabe Black
For reasons explained in a previous CL, it might be necessary to "load" a file from CBFS in place. The loading code in CBFS was, however, zeroing the area of memory the stage was about to be loaded into. When the CBFS data is located elsewhere this works fine, but when it isn't you end up clobbering the data you're trying to load. Also, there's no reason to zero memory we're about to load something into or have just loaded something into. This change makes it so that we only zero out the portion of the memory between what was loaded/decompressed and the final size of the stage in memory. Change-Id: If34df16bd74b2969583e11ef6a26eb4065842f57 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3579 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-08-15CBFS: Change the signature of cbfs_decompress.Gabe Black
Instead of returning 0 on success and -1 on error, return the decompressed size of the data on success and 0 on error. The decompressed size is useful information to have that was being thrown away in that function. Change-Id: If787201aa61456b1e47feaf3a0071c753fa299a3 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3578 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-03-12libpayload: Fix reading x86 CBFS images from RAMPatrick Georgi
Three issues: 1. the hardcoded dereferenced pointer at 0xfffffffc 2. "RAM media" has no idea about ROM relative addresses 3. off-by-one in RAM media: it's legal to request 4 bytes from 0xfffffffc Change-Id: I671ac12d412c71dc8e8e6114f2ea13f58dd99c1d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/2624 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2013-02-12libpayload: New CBFS to support multiple firmware media sources.Hung-Te Lin
Upgrade CBFS in libpayload to use new media-based implementation from coreboot ( http://review.coreboot.org/#/c/2182/ ). Old CBFS functions (cbfs_find, cbfs_find_file, get_cbfs_header) are still supported, although the recommended way is to use new CBFS API. To migrate your existing x86 payload source: - Change cbfs_find to cbfs_get_file - Change cbfs_find_file to cbfs_get_file_content - Prefix every CBFS call with a CBFS_DEFAULT_MEDIA argument. Ex, char *jpeg_data = cbfs_find_file("splash.jpg", CBFS_TYPE_BOOTSPLASH); => char *jpeg_data = cbfs_get_file_content( CBFS_DEFAULT_MEDIA, "splash.jpg", CBFS_TYPE_BOOTSPLASH); The legacy setup_cbfs_from_{ram,flash} is also supported, although the better equivalent is to make a new media instance: struct cbfs_media ram_media; init_cbfs_ram_media(&ram_media, start, size); char *data = cbfs_get_file_content(&ram_media, "myfile", my_type); Verified by being successfully linked with filo. Change-Id: If797bc7e3ba975d7e3be905c59424f7a93b8ce11 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2191 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-01-15libpayload: Style fixesStefan Reinauer
Change-Id: Ic3164fbffd8da6bd9d506d80e425ad89efc0f1af Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/2144 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Martin Roth <martin.roth@se-eng.com> Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2012-11-08Refactor the endianness conversion functions and header files.Gabe Black
The endianness of an architecture is now set up automatically using Kconfig and some common code. The available conversion functions were also expanded to go to or from a particular endianness. Those use the abbreviation le or be for little or big endian. Built for Stumpy and saw coreinfo cbfs support work which uses network byte order. Used the functions which convert to little endian to implement an AHCI driver. The source arch is also little endian, so they were effectively (and successfully) inert. Change-Id: I3a2d2403855b3e0e93fa34f45e8e542b3e5afeac Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/1719 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-01-26libpayload: Allow using CBFS functions on images in RAMPatrick Georgi
Two new functions allow switching the CBFS functions from using RAM or ROM, with ROM as default. Change-Id: I04d67ad622d25c5728ae9a63f5b8a3dc9bbacce6 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/550 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-08-04libpayload: Add liblzma, libcbfsPatrick Georgi
Add cbfs core from coreboot into libpayload, and to support lzma decode, add coreboot's lzma code, too. Carl-Daniel agreed to relicense the lzmadecode wrapper as BSD-l, solving licensing problems. Change-Id: Id28990fe7e951d99447e265a4880d70a8f208dd2 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/115 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marcj303@gmail.com>