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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2017-08-10 23:37:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-11 14:06:14 +0200 |
| commit | 12b25729a194198e3c4289adaddc4115b10b094e (patch) | |
| tree | fc39c0dd9935d7254cd1c004542fd19da27c6696 /tools/objtool | |
| parent | x86: Clarify/fix no-op barriers for text_poke_bp() (diff) | |
| download | linux-12b25729a194198e3c4289adaddc4115b10b094e.tar.xz linux-12b25729a194198e3c4289adaddc4115b10b094e.zip | |
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@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Link: http://lkml.kernel.org/r/d86671cfde823b50477cd2f6f548dfe54871e24d.1502401017.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/objtool')
| -rw-r--r-- | tools/objtool/check.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 4f0c4aea8f6f..5814e907f8c2 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; |