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path: root/tools/binman/elf_test.py
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2020-04-26patman: Move to absolute importsSimon Glass
At present patman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move patman to use absolute imports. This requires changes in tools which use the patman libraries (which is most of them). Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-26binman: Move to absolute importsSimon Glass
At present binman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move binman to use absolute imports. This enables removable of the path adjusting in Entry also. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-11binman: tegra: Adjust symbol calculation depending on end-at-4gbSimon Glass
A recent change adjusted the symbol calculation to work on x86 but broke it for Tegra. In fact this is because they have different needs. On x86 devices the code is linked to a ROM address and the end-at-4gb property is used for the image. In this case there is no need to add the base address of the image, since the base address is already built into the offset and image-pos properties. On other devices we must add the base address since the offsets start at zero. In addition the base address is currently added to the 'offset' and 'size' values. It should in fact only be added to 'image-pos', since 'offset' is relative to its parent and 'size' is not actually an address. This code should have been adjusted when support for 'image-pos' and 'size' was added, but it was not. To correct these problems: - move the code that handles adding the base address to section.py, which can check the end-at-4gb property and which property (offset/size/image-pos) is being read - add the base address only when needed (only for image-pos and not if the image uses end-at-4gb) - add a note to the documentation - add a separate test to cover x86 behaviour Fixes: 15c981cc (binman: Correct symbol calculation with non-zero image base) Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@nvidia.com>
2019-10-15binman: Allow support for writing a size symbol to binariesSimon Glass
It is useful to be able to access the size of an image in SPL, with something like: binman_sym_declare(unsigned long, u_boot_any, size); ... ulong u_boot_size = binman_sym(ulong, u_boot_any, size); Add support for this and update the tests. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Clean up unnecessary code related to ELF test filesSimon Glass
We use the Makefile for all ELF test files now, so drop all the code that checks whether to get the test file from the Makefile or from the git repo. Also add a comment to the Makefile indicating that it is run from binman. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile for u_boot_binman_syms_badSimon Glass
Remove this file from git and instead build it using the Makefile. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile for u_boot_binman_syms_sizeSimon Glass
Remove this file from git and instead build it using the Makefile. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile for u_boot_binman_symsSimon Glass
Remove this file from git and instead build it using the Makefile. With this change a few things need to be adjusted: 1. The 'notes' section no-longer appears at the start of the ELF file (before the code), so update testSymbols to adjust the offsets. 2. The dynamic linker is disabled to avoid errors like: "Not enough room for program headers, try linking with -N" 3. The interpreter note is moved to the end of the image, so that the binman symbols appear first. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile for u_boot_no_ucode_ptrSimon Glass
Remove this file from git and instead build it using the Makefile. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile for u_boot_ucode_ptrSimon Glass
Remove this file from git and instead build it using the Makefile. Update tools.GetInputFilename() to support reading files from an absolute path, so that we can read the Elf test files easily. Also make sure that the temp directory is report in ELF tests as this was commented out. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Use the Makefile to build ELF test filesSimon Glass
At present the ELF test files are checked into the U-Boot tree. This is covenient since the files never change and can be used on non-x86 platforms. However it is not good practice to check in binaries and in this case it does not seem essential. Update the binman test-file Makefile to support having source in a different directory. Adjust binman to run it to build bss_data, as a start. We can add other files as needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15binman: Drop .note section from ELFSimon Glass
Recent versions of binutils add a '.note.gnu.property' into the ELF file. This is not required and interferes with the expected output. Drop it. Also fix testMakeElf() to use a different file for input and output. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-29binman: Add a bit of logging in entries when packingSimon Glass
Use the new logging feature to log information about progress with packing. This is useful to see how binman is figuring things out. Also update elf.py to use the same feature. Signed-off-by: Simon Glass <sjg@chromium.org>
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>