If a file "cmos.default", type "cmos default"(0xaa) is in CBFS,
a wrong checksum leads to coreboot rewriting the first 128 bytes
(except for clock data) with the data in cmos.default, then
reboots the system so every component of coreboot works with the
same set of values.
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6253 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
It dumps everything you ask for, but you might not
get what you expect if the file is compressed or
otherwise converted (eg. payloads in SELF format).
(Originally it would only extract "raw" files.
This is a change by me, as filetypes are commonly used
to differentiate raw data files --Patrick)
Signed-off-by: Aurelien Guillaume <aurelien@iwi.me>
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Acked-by: Patrick Georgi <patrick.georgi@secunet.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6250 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
the build tree.
Allow separate build tree for utils
Use separate build tree for utils in abuild
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5453 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
SECONDEXPANSION feature of GNU make (and we rely on GNU make for lots of
things already)
File paths are relative to the root directory, which simplifies
debugging (make V=1 gives shorter command lines) and helps ccache
finding matches for checkouts in different directories (even though it
should normalize paths itself)
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5304 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This is needed on the IP1000T to get VGA output. The VGA option rom will ask
through an SMI for hardware specifics (in form of a VBT, video bios table)
which the SMI handler copies into the VGA option rom.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5177 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This makes the output look a lot nicer, e.g.
/home/uwe/foo/bar/baz/whatever/build/coreboot.rom: 256 kB, bootblocksize 65536, romsize 262144, offset 0x0
now becomes:
coreboot.rom: 256 kB, bootblocksize 65536, romsize 262144, offset 0x0
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5112 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- if crt0s is empty (eg. because crt0-y is still used),
break the build, and say where that behaviour changed
- if a stage is unusable for cbfstool because it's placed
outside the ROM space (linked to 0 is somewhat notorious),
warn about it, give some hints and exit instead of crashing.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stefan.reinauer@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5077 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Introduce the tiny bootblock infrastructure and use it on QEmu.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4989 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
to be stated in kilobytes or megabytes. Usage is
cbfstool coreboot.rom create 1048576 coreboot.bootblock
cbfstool coreboot.rom create 1024k coreboot.bootblock
cbfstool coreboot.rom create 1m coreboot.bootblock
to get an 1048576 bytes = 1024kb = 1mb image.
Kconfig also uses this instead of calculating bytes from kilobytes itself.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4987 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This should improve programming speed a bit.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4975 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
* use relative paths in ldscript.ld and crt0_includes.h
* avoid use of dd(1) in xcompile
* build libregex for kconfig, if necessary
* work around missing utsname on win32
* unlink targets before rename on win32
* implement (crude) mkstemp for win32
* avoid open/read/close, use fopen/fread/fclose instead
* don't free certain data structures in romcc on win32 to
avoid crashes (likely use-after-free())
* handle "\CRLF" and win32 style absolute paths (X:/ or X:\)
in romcc
* make lzma (part of cbfstool) build on XP
* implement ntohl/htonl on win32
* handle CRLF in awk script
* set larger stack for romcc on win32
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4952 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- don't pretend to create a bootblock as large
as the ROM in Kconfig (it's 64k at most)
- don't pretend to accept a bootblocksize value
in cbfstool create (it ignored it)
- patch up the build systems to keep it working
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4934 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
out a suitable address to put a XIP stage to.
Specifically, you pass it the file (to get its filesize), its filename
(as the header has a variable length that depends on it), and the
granularity requirement it has to fit in (for XIP).
The granularity is MTRR-style: when you request 0x10000, cbfstool looks
for a suitable place in a 64kb-aligned 64kb block.
cbfstool simply prints out a hex value which is the start address of a
suitably located free memory block. That value can then be used with
cbfs add-stage to store the file in the ROM image.
It's a two-step operation (instead of being merged into cbfs add-stage)
because the image must be linked twice: First, with some bogus, but safe
base address (eg. 0) to figure out the target address (based on file
size). Then a second time at the target address.
The work flow is:
- link file
- cbfstool locate
- link file again
- cbfstool add-stage.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4929 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Also, remove one missing hardcoded "build" dir in the distclean target,
and clean up files generated by sconfig in 'make clean'.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4880 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
directory with "build/" for consistency (trivial, sort of).
Also, drop printing of "config.g" input file, we usually only print
generated/output files in the build output.
Finally, rename non-existing COMPRESSFLAG variable to
CBFS_PAYLOAD_COMPRESS_FLAG in a printf line. The build output now says
PAYLOAD payload.elf l
for payloads (the "l" specifies LZMA compression).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4875 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
and report the correct error code, and a hopefully helpful
error message.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4692 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
bad: It brings a certain amount of code duplication (some of which can be
cleaned up again, or get rid of by proper refactoring).
On the other hand now there's a very simple code flow for each command, rather
than for each operation. ie.
adding a file to a cbfs means:
- open the cbfs
- add the file
- close the cbfs
rather than
open the cbfs:
- do this for add, remove, but not for create
create a new lar
- if we don't have an open one yet
add a file:
- if we didn't bail out before
close the file:
- if we didn't bail out before
The short term benefit is that this fixes a problem where cbfstool was trying
to add a file if you gave a non-existing command because it bailed out on
known, not on unknown commands.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4654 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
* fix an issue that could lead to cbfstool writing outside of its allocated
memory
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4653 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
section header which could lead to corrupted malloc arena.
Also, make cbfstool always build with debugging on. Performance
is not an issue here. Don't strip it either.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4641 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
from any symbol information.
Variant of Ron's patch.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4637 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
cbfstool. (trivial)
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4634 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4631 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
supports fixed location files. Some parts are salvaged
from the pre-commit version (esp. stage and payload creation),
others are completely rewritten (eg. the main loop that handles
file addition)
Also adapt newconfig (we don't need cbfs/tools anymore) and fix
some minor issues in the cbfstool-README.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4630 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
$(Q) in front of every silent line.
make V=1 or make Q="" still make make noisy again.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4581 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- Whitespace fixes, remove trailing whitespace, use TABs for identation
(except in Kconfig "help" lines, which start with one TAB and two spaces
as per Linux kernel style)
- Kconfig: Standardize on 'bool' (not 'boolean').
- s/lar/cbfs/ in one Kconfig help string.
- Reword various Kconfig menu entries for a more usable and consistent menu.
- Fix incorrect comment of NO_RUN in devices/Kconfig.
- superio/serverengines/Kconfig: Incorrect config name.
- superio/Makefile.inc: s/serverengine/serverengines/.
- superio/intel/Kconfig: s/SUPERIO_FINTEK_I3100/SUPERIO_INTEL_I3100/.
- mainboard/via/vt8454c/Kconfig: Fix copy-paste error in help string.
- mainboard/via/epia-n/Kconfig: Fix "bool" menu text.
- console/Kconfig: Don't mention defaults in the menu string, kconfig
already displays them anyway.
- Kill "Drivers" menu for now, it only confuses users as long as it's emtpy.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4567 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
CBFS uses sprintf, which requires vtxprintf, which requires (in the
current design) a nested function. That works on x86, but on PPC this
requires a trampoline. In the ROM stage, this is not available, so
remove the single use of sprintf and replace it with a direct string
handler - it's only used to fill in fixed-length hex values.
20090819-3-more-noreturns-in-romcc:
Mark two more functions in romcc as noreturn. Helps clang's scan-build a
bit
20090819-4-cbfsify-ppc:
Make PPC use CBFS. Support big endian ELF in cbfs-mkstage. Untested and
not complete yet.
20090819-5-fix-ppc-build:
The CBFS build system requires ROM_IMAGE_SIZE to have a somewhat
plausible value.
With fixes to tohex* functions as discussed on the list, and correct
function names.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4558 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Thomas Jourdan <thomas.jourdan@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4547 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
probably others). Only select them for AMD
- Make the bootblock smaller (only one copy of it), and don't pad the
bootblock using dd(1), but top-align inside cbfstool, to reduce
dependencies on unix tools.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4542 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Works on Kontron, qemu, and serengeti.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
tested on abuild only.
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4534 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- update, add, and improve comments
- whitespace here and there
- remove unused or write-only variables
- improve debug output
- only build payload.{nrv2b,lzma} for non-cbfs
- improved error checking in cbfstool
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4466 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Kconfig)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4384 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
It's basically done with the following script and some manual fixup:
VARS=`grep ^define src/config/Options.lb | cut -f2 -d\ | grep -v ^CONFIG | grep -v ^COREBOOT |grep -v ^CC`
for VAR in $VARS; do
find . -name .svn -prune -o -type f -exec perl -pi -e "s/(^|[^0-9a-zA-Z_]+)$VAR($|[^0-9a-zA-Z_]+)/\1CONFIG_$VAR\2/g" {} \;
done
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4381 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
didn't look into it enough to know why fssize is 32 bytes larger than the
offset. There may be another bug here. Maybe something with the CBFS header
not being included or excluded from the calculation?
Anyway, this patch fixes it for all cases size > 32.
I also changed the error message so that it doesn't look like the ROM is full
just because it can't find room for a file.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4370 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
[base address] parameter is supplied on the command line... This patch fixes
random segfaults when using 'cbfstool add'.
Signed-off-by: Ward Vandewege <ward@gnu.org>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4363 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
cbfs files at fixed addresses.
I call this transitional as the approach I am taking is to add
capability to cbfstool but not change code in a way that will break
existing usages. Later, once we're sure nothing has broken, we can start to
smooth the edges.
Right now, fixed address file are only supported via the add command.
There is one additional command syntax, so, example:
cbfstool add rom romstrap optionrom 0xffffd000
Will add the file to that fix location for a romstrap.
The assumption is that the ROM is based at the end of a 32-bit address
space. As you can see from the code, that assumption can easily be
over-ridden, if we ever need to, with a command option.
Here is one example output result.
rminnich@xcpu2:~/src/bios/coreboot-v2/util/cbfstool$ ./cbfstool x.cbf print
x.cbf: 1024 kB, bootblocksize 32768, romsize 1048576, offset 0x0
Alignment: 16 bytes
Name Offset Type Size
h 0x0 optionrom 251
0x130 free 917120
h3 0xdffe0 optionrom 251
0xe0110 free 97960
The way this is implemented is pretty simple. I introduce a new
operator, split, that splits an unallocated area into two unallocated
areas. Then, allocation merely becomes a matter of 0, 1, or 2 splits:
0 split -- the free area is the exact fit
1 splits -- need to split some off the front or back
2 splits -- need to split off BOTH the front and back
I think you'll be able to see what I've done. I call this transitional
because, in the end state, we only need one allocate function; for now
I've left two in, to make sure I don't break compatibilty.
Why I like this better than ldscript approach: I like having the
ROMSTRAP located by cbfs, not linker scripts. For one thing, it makes
romstrap visible as a first class object. I think I would have latched
onto a problem I was having much more quickly had I remembered the
ROMSTRAP. It gets lost in the linker scripts.
At this point, we should be able to start removing special ROMSTRAP location
code from linker scripts.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4351 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
with an error code now.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4329 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
* remove some dead code
* fix indentation
* comment in some destructors and fix some other warnings
* use HOSTCC instead of CC (not all the way cosmetic, but very simple)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4299 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
It makes the write part of flashrom dramatically faster with small
payloads like filo; and it also eliminates unnecessary wear on flash
by not writing zeros (it's unlikely this really matters; let me know
next time you flash a BIOS flash 100,000 times!).
More importantly, it allows for future partial flash upgrades with cbfs.
Note that uninitialized_flash_value is a global that can, if we ever need it,
be set by an argument in main. Assuming we ever see a flash where the
"erased" value is 0, not 0xff.
At the same time, "erased" value has been "1" on every EEPROM or
FLASH I've used for some time now.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4290 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
command.
Make use of it in config.g (Myles)
Signed-off-by: Ward Vandewege <ward@gnu.org>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4282 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
It is nearly trivial.
Signed-off-by: Myles Watson<mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4279 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Tested to booting linux with qemu.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Myles Watson<mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4276 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Change sizes from unsigned int to int.
Clean up some usage and parameter checking.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4262 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
src/lib/ code in coreboot. I.e. the tool changes but the coreboot code
does not.
Currently, as cbfstool manages the ROM, there are files and empty
space. To allocate files, the code does, first, a walk of the headers
and, if that fails, does a brute-force search of the rest of the
space.
We all agree that the brute-force search has lots of problems from a
performance and correctness standpoint.
I've made a slight change. Instead of an "empty space" area with no
valid headers, I've made a header for the empty space.
So cbfs creation looks like this:
- set up the boot block
- create a file, of type CBFS_COMPONENT_NULL, that contains the empty
space. CBFS_COMPONENT_NULL was already defined in cbfs.h
Here's an example:
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs create 1048576 2048
(cbfstool) E: Unable to open (null): Bad address
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs print
testcbfs: 1024 kB, bootblocksize 2048, romsize 1048576, offset 0x0
Alignment: 16 bytes
Name Offset Type Size
0x0 0xffffffff 1046456
So how do we create a new file?
It's easy: walk the files and find a file of type CBFS_COMPONENT_NULL,
which is as large
or larger than the file you are trying to create. Then you use that file.
- if the file is the same size as the NULL file, then it's easy: take it
- if the file is smaller than the NULL file, you split the NULL file
into two parts.
note that this works in the base case: the base case is that the whole
storage is CBFS_COMPONENT_NULL.
Here's an example of adding a file.
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs add-stage testfixed t
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs print
testcbfs: 1024 kB, bootblocksize 2048, romsize 1048576, offset 0x0
Alignment: 16 bytes
Name Offset Type Size
t 0x0 stage 23176
0x5ab0 0xffffffff 1023240
Note that the NULL split and got smaller. But the entire ROM is still
contained by the two files. To walk this entire rom will require two
FLASH accesses.
Add another file:
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs add-stage testfixed tt
[rminnich@xcpu2 cbfstool]$ ./cbfstool testcbfs print
testcbfs: 1024 kB, bootblocksize 2048, romsize 1048576, offset 0x0
Alignment: 16 bytes
Name Offset Type Size
t 0x0 stage 23176
tt 0x5ab0 stage 23176
0xb560 0xffffffff 1000024
[rminnich@xcpu2 cbfstool]$
So, taking current ROMs as an example, I can reduce FLASH accesses for
cbfs from (potentially) thousands to (typically) less than 10.
Index: fs.c
Changes for readability and cleanliness. Move common blobs of code to functions.
New function: rom_alloc,which allocates files by finding NULL files and using/splitting.
Other changes as needed to support this usage.
Index: util.c
Creating a cbfs archive now requires creation of a NULL file covering the file system space.
Index: cbfs.h
Add a DELETED file type with value 0. Any file can be marked deleted by zero its type; this is a
FLASH-friendly definition for all known FLASH types.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
I think it is a step in the right direction. Could you add the
function prototype to cbfstool.h?
Acked-by: Myles Watson <mylesgw@gmail.com>
(I added the prototype)
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4261 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
I didn't try to remove "defined but not used" warnings because there are too
many ifdefs to be sure I wouldn't break something.
For shadowed variable declarations I renamed the inner-most variable.
The one in src/pc80/keyboard.c might need help. I didn't change the
functionality but it looks like a bug.
I boot tested it on s2892 and abuild tested it.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4240 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
anything that was there. For ck804 or mcp55-based machines that was the
romstrap.
The fix is simple:
1. Put the master cbfs record above the bootblock instead of on it.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4209 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
caused a seg fault, sometimes executed somewhere else. Also add an error if
the algorithm is unknown.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ward Vandewege <ward@gnu.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4198 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
cbfstool extract [FILE] [NAME]
It also factors out the csize calculation in rom_add, and fixes rom_delete so
that it can handle deleting the last entry.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4144 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4114 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
I noticed this before sed, but forgot to change it back after sed.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4111 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
It's all sed here. romfs->cbfs, ROMFS->CBFS, romtool->cbfstool
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4110 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Peter Stuge