From f2d3a250897133cc36c13a641bd6a9b4dd5ad234 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 8 Mar 2022 16:30:13 +0100
Subject: objtool: Add --dry-run
Add a --dry-run argument to skip writing the modifications. This is
convenient for debugging.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154317.282720146@infradead.org
---
tools/objtool/elf.c | 3 +++
1 file changed, 3 insertions(+)
(limited to 'tools/objtool/elf.c')
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 4b384c907027..456ac2206404 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -1019,6 +1019,9 @@ int elf_write(struct elf *elf)
struct section *sec;
Elf_Scn *s;
+ if (dryrun)
+ return 0;
+
/* Update changed relocation sections and section headers: */
list_for_each_entry(sec, &elf->sections, list) {
if (sec->changed) {
--
cgit