git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-03 23:37:40 -04:00
Code Issues Packages Projects Releases Wiki Activity

objtool/klp: fix data alignment in __clone_symbol()

Browse Source 
Commit 356e4b2f5b ("objtool: Fix data alignment in elf_add_data()")
corrected the alignment of data within a section (honoring the section's
sh_addralign).  Apply the same alignment when klp-diff mode clones a
symbol, adjusting the new symbol's offset for the output section's
sh_addralign.

Fixes: dd590d4d57 ("objtool/klp: Introduce klp diff subcommand for diffing object files")
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Link: https://patch.msgid.link/20260310203751.1479229-2-joe.lawrence@redhat.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Joe Lawrence
2026-03-10 16:37:40 -04:00
committed by Josh Poimboeuf
parent f338e77383
commit 2f2600decb
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
tools/objtool/klp-diff.c
View File

@@ -14,6 +14,7 @@
#include <objtool/util.h>
#include <arch/special.h>
#include <linux/align.h>
#include <linux/objtool_types.h>
#include <linux/livepatch_external.h>
#include <linux/stringify.h>
@@ -560,7 +561,7 @@ static struct symbol *__clone_symbol(struct elf *elf, struct symbol *patched_sym
}
if (!is_sec_sym(patched_sym))
offset = sec_size(out_sec);
offset = ALIGN(sec_size(out_sec), out_sec->sh.sh_addralign);
if (patched_sym->len || is_sec_sym(patched_sym)) {
void *data = NULL;