github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 09:36:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

objtool/klp: Don't correlate __ADDRESSABLE() symbols

Browse Source 
Symbols created by __ADDRESSABLE() are only used to convince the
toolchain not to optimize out the referenced symbol.

Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Josh Poimboeuf 2026-04-11 12:23:07 -07:00
parent ff529864e7
commit 8edec01625
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
tools/objtool/klp-diff.c
View File

@ -352,6 +352,15 @@ static bool is_special_section_aux(struct section *sec)
return false;
}
/*
* Symbols created by ___ADDRESSABLE() are only used to convince the toolchain
* not to optimize out the referenced symbol.
*/
static bool is_addressable_sym(struct symbol *sym)
{
return !strcmp(sym->sec->name, ".discard.addressable");
}
/*
* These symbols should never be correlated, so their local patched versions
* are used instead of linking to the originals.
@ -365,6 +374,7 @@ static bool dont_correlate(struct symbol *sym)
is_uncorrelated_static_local(sym) ||
is_clang_tmp_label(sym) ||
is_string_sec(sym->sec) ||
is_addressable_sym(sym) ||
is_special_section(sym->sec) ||
is_special_section_aux(sym->sec) ||
strstarts(sym->name, "__initcall__");