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>
This is only 3 bytes long which is not enough to hold two symbol values,
needed to test the binman symbols feature. Increase it to 15 bytes.
Using very small regions is useful since we can easily compare them in
tests and errors are fairly easy to diagnose.
Signed-off-by: Simon Glass <sjg@chromium.org>
For testing we need to build some ELF files containing binman symbols. Add
these to the Makefile and check in the binaries:
u_boot_binman_syms - normal, valid ELF file
u_boot_binman_syms_bad - missing the __image_copy_start symbol
u_boot_binman_syms_size - has a binman symbol with an invalid size
Signed-off-by: Simon 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: Simon Glass <sjg@chromium.org>
MRC (Memory Reference Code) is a binary blob used to set up the SDRAM
controller on some Intel boards. Add a test for this feature.
With this test coverage on binman is back up to 100%.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a test for this feature. It allows SPL to hold a pointer to the
microcode block. This is used for 64-bit U-Boot on x86.
Signed-off-by: Simon Glass <sjg@chromium.org>
These test programs are includedd as binary files in U-Boot to avoid
having to build them (and associated toolchain differences). Instructions
on building are in the files themselves, but it seems better to provide
a Makefile which can be manually run when desired.
Add a Makefile, separate from the normal build system, to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
The tests don't currently cover all the different property types. Add a
new test which checks each property type in turn, to make sure each has
the correct type and value.
Signed-off-by: Simon Glass <sjg@chromium.org>
With recent changes, some x86-specific rom tests of binman fail to
run. Fix it by adding missing filenames in corresponding entries.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add support for two more from the inexhaustible supply of x86 binary blob
types.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
When building for 64-bit x86 we need an SPL binary in the ROM. Add support
for this. Also increase entry test code coverage to 100%.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Add an entry type for u-boot.img (a legacy U-Boot image) and a simple test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
The structure of x86 ROMs is pretty complex. There are various binary blobs
to place in the image. Microcode requires special handling so that it is
available to very early code and can be used without any memory whatsoever.
Add support for the various entry types that are currently needed, along
with some tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Add entries to support some standard U-Boot binaries, such as u-boot.bin,
u-boot.dtb, etc. Also add some tests for these.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
