u-boot/tools/binman/test/blob_syms.lds
Simon Glass c1157860c5 binman: Provide general support for updating ELF symbols
The current support for updating variables in a binary is hard-coded to
work with U-Boot:

- It assumes the image starts at __image_copy_start
- It uses the existing U-Boot-specific entry types

It is useful for other projects to use these feature.

Add properties to enable writing symbols for any blob, a way of specifying
the base symbol and a way of providing the ELF filename to allow symbol
lookup to take place.

With this it is possible to update a Zephyr image, such as zephyr.bin
after it has been built.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-18 14:55:41 -07:00

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Text

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2016 Google, Inc
*/
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SECTIONS
{
. = 0x00000010;
_start = .;
. = ALIGN(4);
.text :
{
__my_start_sym = .;
*(.text*)
}
. = ALIGN(4);
.binman_sym_table : {
__binman_sym_start = .;
KEEP(*(SORT(.binman_sym*)));
__binman_sym_end = .;
}
.interp : { *(.interp*) }
}