coreboot-kgpe-d16/util/cbfstool
Julius Werner efcee767de CBFS: Automate ROM image layout and remove hardcoded offsets
Non-x86 boards currently need to hardcode the position of their CBFS
master header in a Kconfig. This is very brittle because it is usually
put in between the bootblock and the first CBFS entry, without any
checks to guarantee that it won't overlap either of those. It is not fun
to debug random failures that move and disappear with tiny alignment
changes because someone decided to write "ORBC1112" over some part of
your data section (in a way that is not visible in the symbolized .elf
binaries, only in the final image). This patch seeks to prevent those
issues and reduce the need for manual configuration by making the image
layout a completely automated part of cbfstool.

Since automated placement of the CBFS header means we can no longer
hardcode its position into coreboot, this patch takes the existing x86
solution of placing a pointer to the header at the very end of the
CBFS-managed section of the ROM and generalizes it to all architectures.
This is now even possible with the read-only/read-write split in
ChromeOS, since coreboot knows how large that section is from the
CBFS_SIZE Kconfig (which is by default equal to ROM_SIZE, but can be
changed on systems that place other data next to coreboot/CBFS in ROM).

Also adds a feature to cbfstool that makes the -B (bootblock file name)
argument on image creation optional, since we have recently found valid
use cases for CBFS images that are not the first boot medium of the
device (instead opened by an earlier bootloader that can already
interpret CBFS) and therefore don't really need a bootblock.

BRANCH=None
BUG=None
TEST=Built and booted on Veyron_Pinky, Nyan_Blaze and Falco.

Change-Id: Ib715bb8db258e602991b34f994750a2d3e2d5adf
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e9879c0fbd57f105254c54bacb3e592acdcad35c
Original-Change-Id: Ifcc755326832755cfbccd6f0a12104cba28a20af
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/229975
Reviewed-on: http://review.coreboot.org/9620
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-14 09:01:27 +02:00
..
lzma cbfstool: Clean up code 2015-03-04 19:53:20 +01:00
EXAMPLE
Makefile cbfstool: Clean up code 2015-03-04 19:53:20 +01:00
Makefile.inc build system: fix another cbfstool race 2014-07-15 14:27:04 +02:00
cbfs-mkpayload.c cbfstool: If compression fails, warn and use the uncompressed data. 2014-10-28 17:08:29 +01:00
cbfs-mkstage.c util/cbfstool/cbfs-mkstage.c: Fix build issue on 32-bit x86 2014-11-21 19:46:18 +01:00
cbfs-payload-linux.c cbfstool:linux_trampoline: config CS and DS segment descriptors 2014-09-04 23:34:32 +02:00
cbfs.h cbfstool: add filetypes for FSP, MRC, SPC and MRC_CACHE 2015-03-30 21:45:11 +02:00
cbfs_image.c CBFS: Automate ROM image layout and remove hardcoded offsets 2015-04-14 09:01:27 +02:00
cbfs_image.h cbfstool: Deserialize CBFS master header when reading image 2014-02-11 20:14:39 +01:00
cbfstool.c CBFS: Automate ROM image layout and remove hardcoded offsets 2015-04-14 09:01:27 +02:00
coff.h
common.c cbfstool: add filetypes for FSP, MRC, SPC and MRC_CACHE 2015-03-30 21:45:11 +02:00
common.h CBFS: Automate ROM image layout and remove hardcoded offsets 2015-04-14 09:01:27 +02:00
compress.c cbfstool: Propogate compression errors back to the caller. 2014-09-25 20:26:04 +02:00
elf.h cbfstool: Add relocation codes for arm mode 2015-03-17 16:53:50 +01:00
elfheaders.c cbfstool: Remove arch check for different stages 2015-01-13 21:29:38 +01:00
elfparsing.h cbfstool: add ELF writing support 2014-03-18 18:59:25 +01:00
fit.c cbfstool: Fix update-fit command 2014-12-28 19:58:35 +01:00
fit.h
fv.h
linux.h cbfstool:linux_trampoline: config CS and DS segment descriptors 2014-09-04 23:34:32 +02:00
linux_trampoline.c cbfstool:linux_trampoline: config CS and DS segment descriptors 2014-09-04 23:34:32 +02:00
linux_trampoline.h cbfstool:linux_trampoline: config CS and DS segment descriptors 2014-09-04 23:34:32 +02:00
rmodtool.c util: add rmodtool for parsing ELF files to rmodules 2014-03-20 21:34:39 +01:00
rmodule.c ARM64 rmodule: Add new reloc type R_AARCH64_LDST8_ABS_LO12_NC 2015-03-21 08:41:42 +01:00
rmodule.h util: add rmodtool for parsing ELF files to rmodules 2014-03-20 21:34:39 +01:00
swab.h
xdr.c cbfstool: add bputs() to store a byte stream to a buffer 2014-03-11 19:43:17 +01:00