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: NSimon Glass <sjg@chromium.org>

Remove this file from git and instead build it using the Makefile.
Signed-off-by: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

Add a function which decodes an ELF file, working out where in memory each
part of the data should be written.
Signed-off-by: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

This function is useful in various tests. Move it into the common test
utility module.
Signed-off-by: NSimon Glass <sjg@chromium.org>

We now pass a Section object to these functions rather than an Image.
Rename the parameters to avoid confusion.
Signed-off-by: NSimon Glass <sjg@chromium.org>

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: NTom Rini <trini@konsulko.com>

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: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>