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In preparation for changing how stages are stored, rename the existing
stage tag.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add definitions for a payload or 'self', which is like an unpacked ELF
file.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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CBFS now supports compressed filed. Add support for reading this
information so that the correct decompression can be applied. The
decompression itself is not implemented in CBFS.
Signed-off-by: Simon Glass <sjg@chromium.org>
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The file traversal functions currently use a single global CBFS. In some
cases we need to access multiple CBFSs to obtain different files. Add new
functions to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
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In some cases CBFS does not start with a header but is just a collection
of files. It is possible to support this so long as the size of the CBFS
is provided.
Update the cbfs_init_mem() function to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
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CBFS now supports attributes for things that cannot fit in the header as
originally conceived. Add the structures for these.
Also rename attributes_offset to something shorter, to ease code
readability.
Signed-off-by: Simon Glass <sjg@chromium.org>
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The size is not actually used since it is present in the header. Drop this
parameter. Also tidy up error handling while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Currently we support reading a file from CBFS given the address of the end
of the ROM. Sometimes we only know the start of the CBFS. Add a function
to find a file given that.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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This function currently returns a node pointer so there is no way to know
the error code. Also it uses data in BSS which seems unnecessary since the
caller might prefer to use a local variable.
Update the function and split its body out into a separate function so we
can use it later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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We may as well return the error code and use it directly in the command
code. CBFS still uses its own error enum which we may be able to remove,
but leave it for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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U-Boot uses ulong for addresses but there are a few places in this driver
that don't use it. Convert this driver over to follow this convention
fully.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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It is not definded anywhere.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.gpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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The intention here is add a forward declaration, not actually declare a
variable. Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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With the __packed attribute sandbox_defconfig cannot be compiled with GCC
9.2.1:
fs/cbfs/cbfs.c: In function ‘file_cbfs_fill_cache’:
fs/cbfs/cbfs.c:164:16: error: taking address of packed member of
‘struct cbfs_cachenode’ may result in an unaligned pointer value
[-Werror=address-of-packed-member]
164 | cache_tail = &new_node->next;
| ^~~~~~~~~~~~~~~
struct cbfs_cachenode is only an internal structure. So let's rearrange the
fields such that the structure is naturally packed and remove the __packed
attribute.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Sometimes an image has multiple CBFS. The current CBFS API is limited to
handling only one at time. Also it keeps track of the CBFS internally in
BSS, which does not work before relocation, for example.
Add a few new functions to overcome these limitations.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
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Move the result variable into the struct also, so that it can be used when
BSS is not available. Add a function to read it.
Note that all functions sill use the BSS version of the data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
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It seems that this field has been renamed in later version of coreboot.
Update it.
Signed-off-by: Simon Glass <sjg@chromium.org>
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This field is not commented in the original file. Add a comment.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Current CBFS component type list is incomplete. Add missing ones.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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At present there are 2 macros that are named as CBFS_COMPONENT_xxx.
Change them to CBFS_TYPE_xxx for consistency.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
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This adds a docbook template for fs, and makes CBFS use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
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As requested by Wolfgang, remove references to CREDITS in the CBFS
files.
Signed-off-by: Simon Glass <sjg@chromium.org>
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This change adds CBFS support and some commands to use it to u-boot. These
commands are:
cbfsinit - Initialize CBFS support and pull all metadata into RAM. The end of
the ROM is an optional parameter which defaults to the standard 0xffffffff and
can be used to support multiple CBFSes in a system. The last one set up with
cbfsinit is the one that will be used.
cbfsinfo - Print information from the CBFS header.
cbfsls - Print out the size, type, and name of all the files in the current
CBFS. Recognized types are translated into symbolic names.
cbfsload - Load a file from CBFS into memory. Like the similar command for fat
filesystems, you can optionally provide a maximum size.
Support for CBFS is compiled in when the CONFIG_CMD_CBFS option is specified.
The CBFS driver can also be used programmatically from within u-boot.
If u-boot needs something out of CBFS very early before the heap is
configured, it won't be able to use the normal CBFS support which caches some
information in memory it allocates from the heap. The
cbfs_file_find_uncached function searches a CBFS instance without touching
the heap.
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
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