summaryrefslogtreecommitdiff
path: root/tools/binman/elf_test.py
AgeCommit message (Collapse)Author
2019-07-23binman: Add a function to decode an ELF fileSimon Glass
Add a function which decodes an ELF file, working out where in memory each part of the data should be written. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-23binman: Add a function to create a sample ELF fileSimon Glass
It is useful to create an ELF file for testing purposes, with just the right attributes used by the test. Add a function to handle this, along with a test that it works correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-10binman: Convert to use bytes typeSimon Glass
With Python 3 we want to use the 'bytes' type instead of 'str'. Adjust the code accordingly so that it works on both Python 2 and Python 3. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-10binman: Handle repeated bytes for Python 3Simon Glass
The method of multiplying a character by a number works well for creating a repeated string in Python 2. But in Python 3 we need to use bytes() instead, to avoid unicode problems, since 'bytes' is no-longer just an alias of 'str'. Create a function to handle this detail and call it from the relevant places in binman. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-08binman: Fix up removal of temporary directoriesSimon Glass
At present 'make check' leaves some temporary directories around. Part of this is because we call tools.PrepareOutputDir() twice in some cases, without calling tools.FinaliseOutputDir() in between. Fix this. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-08-01binman: Add comments to elf_testSimon Glass
The purpose of some of the tests is not obvious from the function names. Add a few comments to help with understanding. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09binman: Move capture_sys_output() to test_utilSimon Glass
This function is useful in various tests. Move it into the common test utility module. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Rename ELF parameters to 'section'Simon Glass
We now pass a Section object to these functions rather than an Image. Rename the parameters to avoid confusion. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2017-12-12binman: Support accessing binman tables at run timeSimon Glass
Binman construct images consisting of multiple binary files. These files sometimes need to know (at run timme) where their peers are located. For example, SPL may want to know where U-Boot is located in the image, so that it can jump to U-Boot correctly on boot. In general the positions where the binaries end up after binman has finished packing them cannot be known at compile time. One reason for this is that binman does not know the size of the binaries until everything is compiled, linked and converted to binaries with objcopy. To make this work, we add a feature to binman which checks each binary for symbol names starting with '_binman'. These are then decoded to figure out which entry and property they refer to. Then binman writes the value of this symbol into the appropriate binary. With this, the symbol will have the correct value at run time. Macros are used to make this easier to use. As an example, this declares a symbol that will access the 'u-boot-spl' entry to find the 'pos' value (i.e. the position of SPL in the image): binman_sym_declare(unsigned long, u_boot_spl, pos); This converts to a symbol called '_binman_u_boot_spl_prop_pos' in any binary that includes it. Binman then updates the value in that binary, ensuring that it can be accessed at runtime with: ulong u_boot_pos = binman_sym(ulong, u_boot_spl, pos); This assigns the variable u_boot_pos to the position of SPL in the image. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12binman: Add a function to read ELF symbolsSimon Glass
In some cases we need to read symbols from U-Boot. At present we have a a few cases which does this via 'nm' and 'grep'. It is better to use objdump since that tells us the size of the symbols and also whether it is weak or not. Add a new module which reads ELF information from files. Update existing uses of 'nm' to use this module. Signed-off-by: Simon Glass <sjg@chromium.org>