u-boot.git/tools/binman/elf.py, branch v2023.01 Unnamed repository; edit this file 'description' to name the repository. binman: Support writing symbols into ELF files 2022-10-31T15:02:44+00:00 Simon Glass sjg@chromium.org 2022-10-21T00:22:47+00:00 d2afb9edce0089f06d8f353cf88d8f5dec984914 In some cases the ELF version of SPL builds may be packaged, rather than a binary .bin file. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org> 
In some cases the ELF version of SPL builds may be packaged, rather
than a binary .bin file. Add support for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
binman: Allow obtaining a symbol value 2022-10-31T15:01:31+00:00 Simon Glass sjg@chromium.org 2022-10-21T00:22:44+00:00 28565796df769e0a8d5ab1f8424cb262e40edc2e Provide a function to obtain the integer value of an ELF symbol. This will be used Signed-off-by: Simon Glass <sjg@chromium.org> 
Provide a function to obtain the integer value of an ELF symbol. This will
be used

Signed-off-by: Simon Glass <sjg@chromium.org>
spl: binman: Check at runtime if binman symbols were filled in 2022-06-28T02:09:52+00:00 Alper Nebi Yasak alpernebiyasak@gmail.com 2022-06-18T12:13:11+00:00 367ecbf2d3b1c16a3b98b9f6430b8197d2bddbf9 Binman lets us declare symbols in SPL/TPL that refer to other entries in the same binman image as them. These symbols are filled in with the correct values while binman assembles the images, but this is done in-memory only. Symbols marked as optional can be filled with BINMAN_SYM_MISSING as an error value if their referred entry is missing. However, the unmodified SPL/TPL binaries are still available on disk, and can be used by people. For these files, nothing ensures that the symbols are set to this error value, and they will be considered valid when they are not. Empirically, all symbols show up as zero in a sandbox_vpl build when we run e.g. tpl/u-boot-tpl directly. On the other hand, zero is a perfectly fine value for a binman-written symbol, so we cannot say the symbols have wrong values based on that. Declare a magic symbol that binman always fills in with a fixed value. Check this value as an indicator that symbols were filled in correctly. Return the error value for all symbols when this magic symbol has the wrong value. For binman tests, we need to make room for the new symbol in the mocked SPL/TPL data by extending them by four bytes. This messes up some test image layouts. Fix the affected values, and check the magic symbol wherever it makes sense. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> 
Binman lets us declare symbols in SPL/TPL that refer to other entries in
the same binman image as them. These symbols are filled in with the
correct values while binman assembles the images, but this is done
in-memory only. Symbols marked as optional can be filled with
BINMAN_SYM_MISSING as an error value if their referred entry is missing.

However, the unmodified SPL/TPL binaries are still available on disk,
and can be used by people. For these files, nothing ensures that the
symbols are set to this error value, and they will be considered valid
when they are not.

Empirically, all symbols show up as zero in a sandbox_vpl build when we
run e.g. tpl/u-boot-tpl directly. On the other hand, zero is a perfectly
fine value for a binman-written symbol, so we cannot say the symbols
have wrong values based on that.

Declare a magic symbol that binman always fills in with a fixed value.
Check this value as an indicator that symbols were filled in correctly.
Return the error value for all symbols when this magic symbol has the
wrong value.

For binman tests, we need to make room for the new symbol in the mocked
SPL/TPL data by extending them by four bytes. This messes up some test
image layouts. Fix the affected values, and check the magic symbol
wherever it makes sense.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
elf: Rename load_segments() and module failure 2022-03-19T01:24:25+00:00 Simon Glass sjg@chromium.org 2022-03-06T03:18:57+00:00 17b4ffc56fbd37564099083ed784d1249911629e Rename this function to make it clear that it only reads loadable segments. Also update the error for missing module to better match the message emitted by Python. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> Suggested-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> 
Rename this function to make it clear that it only reads loadable
segments. Also update the error for missing module to better match the
message emitted by Python.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Suggested-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
binman: Complete elf test coverage 2022-03-19T01:21:49+00:00 Simon Glass sjg@chromium.org 2022-03-19T01:19:49+00:00 40def8ad752d68e68e1c66701850369402148119 Add coverage for the new elf functions needed for the event_dump.py script. Signed-off-by: Simon Glass <sjg@chromium.org> 
Add coverage for the new elf functions needed for the event_dump.py
script.

Signed-off-by: Simon Glass <sjg@chromium.org>
binman: Expand elf support a little 2022-03-10T13:28:36+00:00 Simon Glass sjg@chromium.org 2022-03-04T15:42:59+00:00 64defba4ea55736926c5152a245164ace58fa04e Allow finding a symbol by its address. Also export the function to get the file offset of a particular address, so it can be used by a script to be added. Signed-off-by: Simon Glass <sjg@chromium.org> 
Allow finding a symbol by its address. Also export the function to get
the file offset of a particular address, so it can be used by a script to
be added.

Signed-off-by: Simon Glass <sjg@chromium.org>
elf: Add a way to read segment information from an ELF file 2022-02-22T17:05:44+00:00 Simon Glass sjg@chromium.org 2022-02-08T18:49:55+00:00 4d38dd77f901a48736c540a9c7499816fa9b4d90 Add a function which reads the segments and the entry address. Also fix a comment nit in the tests while we are here. Signed-off-by: Simon Glass <sjg@chromium.org> 
Add a function which reads the segments and the entry address.

Also fix a comment nit in the tests while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
patman: Convert camel case in tout.py 2022-02-09T19:30:13+00:00 Simon Glass sjg@chromium.org 2022-01-29T21:14:15+00:00 f3385a5b1c2024e33e276aef829a4da43ceee0fe Convert this file to snake case and update all files which use it. Signed-off-by: Simon Glass <sjg@chromium.org> 
Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
patman: Convert camel case in command.py 2022-02-09T19:26:12+00:00 Simon Glass sjg@chromium.org 2022-01-29T21:14:05+00:00 d98006997c342435f906317758292fe97c520b47 Convert this file to snake case and update all files which use it. Signed-off-by: Simon Glass <sjg@chromium.org> 
Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
patman: Convert camel case in tools.py 2022-02-09T19:26:12+00:00 Simon Glass sjg@chromium.org 2022-01-29T21:14:04+00:00 c1aa66e75dbfcacab1fbca0e3e19c09e08d932d5 Convert this file to snake case and update all files which use it. Signed-off-by: Simon Glass <sjg@chromium.org> 
Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>