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authorJosh Poimboeuf <jpoimboe@kernel.org>2026-04-11 22:23:07 +0300
committerJosh Poimboeuf <jpoimboe@kernel.org>2026-05-05 07:15:59 +0300
commit8edec016255dcc74146b0486639f756f0ce75bf5 (patch)
tree622e88ad30399e9099d2c4d5e1aca38db436645c /tools/objtool
parentff529864e738f447ff4c019956319930fc274a23 (diff)
downloadlinux-8edec016255dcc74146b0486639f756f0ce75bf5.tar.xz
objtool/klp: Don't correlate __ADDRESSABLE() symbols
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>
Diffstat (limited to 'tools/objtool')
-rw-r--r--tools/objtool/klp-diff.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/objtool/klp-diff.c b/tools/objtool/klp-diff.c
index cb26c1c92a74..36753eeba58c 100644
--- a/tools/objtool/klp-diff.c
+++ b/tools/objtool/klp-diff.c
@@ -353,6 +353,15 @@ static bool is_special_section_aux(struct section *sec)
}
/*
+ * 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__");