| Marek Behún | d72a3b7 | 2021-05-20 13:24:03 +0200 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # SPDX-License-Identifier: GPL-2.0+ |
| Marek Behún | d63726e | 2022-06-01 17:17:06 +0200 | [diff] [blame] | 3 | # Copyright (C) 2020 Marek Behún <kabel@kernel.org> |
| Marek Behún | d72a3b7 | 2021-05-20 13:24:03 +0200 | [diff] [blame] | 4 | |
| 5 | # Generate __ADDRESSABLE(symbol) for every linker list entry symbol, so that LTO |
| 6 | # does not optimize these symbols away |
| 7 | |
| Patrick Delaunay | 8210d0c | 2021-07-21 09:56:07 +0200 | [diff] [blame] | 8 | # The expected parameter of this script is the command requested to have |
| 9 | # the U-Boot symbols to parse, for example: $(NM) $(u-boot-main) |
| 10 | |
| Marek Behún | d72a3b7 | 2021-05-20 13:24:03 +0200 | [diff] [blame] | 11 | set -e |
| 12 | |
| Tom Rini | dec7ea0 | 2024-05-20 13:35:03 -0600 | [diff] [blame] | 13 | echo '#include <linux/compiler.h>' |
| Andrew Goodbody | e893fb2 | 2024-07-02 18:00:09 +0100 | [diff] [blame] | 14 | $@ 2>/dev/null | grep -oe '_u_boot_list_2_[a-zA-Z0-9_]*_2_[a-zA-Z0-9_]*' \ |
| 15 | -e '__stack_chk_guard' | sort -u | \ |
| 16 | sed -e 's/^\(.*\)/extern char \1[];\n__ADDRESSABLE(\1);/' |