Commit-ID: 12b25729a194198e3c4289adaddc4115b10b094e
Gitweb: http://git.kernel.org/tip/12b25729a194198e3c4289adaddc4115b10b094e
Author: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate: Thu, 10 Aug 2017 16:37:25 -0500
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 11 Aug 2017 14:06:14 +0200
objtool: Fix validate_branch() return codes
The validate_branch() function should never return a negative value.
Errors are treated as warnings so that even if something goes wrong,
objtool does its best to generate ORC data for the rest of the file.
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Link: http://lkml.kernel.org/r/d86671cfde823b50477cd2f6f548dfe54871e24d.1502401017.git.jpoimboe@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
tools/objtool/check.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4f0c4ae..5814e90 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1524,7 +1524,7 @@ static int validate_branch(struct objtool_file *file, struct instruction *first,
if (insn->alt_group && list_empty(&insn->alts)) {
WARN_FUNC("don't know how to handle branch to middle of alternative instruction group",
sec, insn->offset);
- return -1;
+ return 1;
}
while (1) {
@@ -1543,7 +1543,7 @@ static int validate_branch(struct objtool_file *file, struct instruction *first,
if (func && insn->ignore) {
WARN_FUNC("BUG: why am I validating an ignored function?",
sec, insn->offset);
- return -1;
+ return 1;
}
if (insn->visited) {
@@ -1681,7 +1681,7 @@ static int validate_branch(struct objtool_file *file, struct instruction *first,
case INSN_STACK:
if (update_insn_state(insn, &state))
- return -1;
+ return 1;
break;
--
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