From: "tip-bot2 for Peter Zijlstra" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Julien Thierry <jthierry@redhat.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Miroslav Benes <mbenes@suse.cz>,
Josh Poimboeuf <jpoimboe@redhat.com>, x86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [tip: objtool/core] objtool: Make handle_insn_ops() unconditional
Date: Fri, 01 May 2020 18:22:21 -0000 [thread overview]
Message-ID: <158835734130.8414.1839500420306776239.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20200428191659.795115188@infradead.org>
The following commit has been merged into the objtool/core branch of tip:
Commit-ID: 60041bcd8f5ab560dabf44dc384f58bbeb5a6a30
Gitweb: https://git.kernel.org/tip/60041bcd8f5ab560dabf44dc384f58bbeb5a6a30
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Fri, 24 Apr 2020 16:16:41 +02:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Thu, 30 Apr 2020 20:14:32 +02:00
objtool: Make handle_insn_ops() unconditional
Now that every instruction has a list of stack_ops; we can trivially
distinquish those instructions that do not have stack_ops, their list
is empty.
This means we can now call handle_insn_ops() unconditionally.
Suggested-by: Julien Thierry <jthierry@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20200428191659.795115188@infradead.org
---
tools/objtool/check.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 068897d..6591c2d 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2259,6 +2259,9 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
return 0;
}
+ if (handle_insn_ops(insn, &state))
+ return 1;
+
switch (insn->type) {
case INSN_RETURN:
@@ -2318,9 +2321,6 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
break;
case INSN_EXCEPTION_RETURN:
- if (handle_insn_ops(insn, &state))
- return 1;
-
/*
* This handles x86's sync_core() case, where we use an
* IRET to self. All 'normal' IRET instructions are in
@@ -2340,8 +2340,6 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
return 0;
case INSN_STACK:
- if (handle_insn_ops(insn, &state))
- return 1;
break;
case INSN_STAC:
next prev parent reply other threads:[~2020-05-01 18:23 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-28 19:11 [PATCH v2 00/14] objtool vs retpoline Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 01/14] objtool: Allow branches within the same alternative Peter Zijlstra
2020-04-28 19:53 ` Josh Poimboeuf
2020-04-28 19:11 ` [PATCH v2 02/14] objtool: Fix ORC vs alternatives Peter Zijlstra
2020-04-28 19:55 ` Josh Poimboeuf
2020-04-29 14:33 ` Miroslav Benes
2020-04-29 15:51 ` Peter Zijlstra
2020-04-29 16:41 ` Miroslav Benes
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 03/14] x86,smap: Fix smap_{save,restore}() alternatives Peter Zijlstra
2020-04-29 0:54 ` Brian Gerst
2020-04-29 8:30 ` Peter Zijlstra
2020-04-29 10:18 ` Peter Zijlstra
2020-04-29 12:12 ` Brian Gerst
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 04/14] objtool: is_fentry_call() crashes if call has no destination Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 05/14] objtool: UNWIND_HINT_RET_OFFSET should not check registers Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 06/14] objtool: Rework allocating stack_ops on decode Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 07/14] objtool: Make handle_insn_ops() unconditional Peter Zijlstra
2020-05-01 18:22 ` tip-bot2 for Peter Zijlstra [this message]
2020-05-07 12:38 ` [tip: objtool/core] " Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 08/14] objtool: Remove INSN_STACK Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 09/14] objtool: Move the IRET hack into the arch decoder Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Miroslav Benes
2020-04-28 19:11 ` [PATCH v2 10/14] objtool: Add support for intra-function calls Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 11/14] x86/speculation: Change FILL_RETURN_BUFFER to work with objtool Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 12/14] x86: Simplify retpoline declaration Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 13/14] x86: Change {JMP,CALL}_NOSPEC argument Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 14/14] x86/retpoline: Fix retpoline unwind Peter Zijlstra
2020-05-01 18:22 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 20:17 ` [PATCH v2 00/14] objtool vs retpoline Josh Poimboeuf
2020-04-29 10:19 ` [PATCH v2.1 01-A/14] objtool: Remove check preventing branches within alternative Peter Zijlstra
2020-04-29 10:21 ` [PATCH v2.1 01-B/14] objtool: Uniquely identify alternative instruction groups Peter Zijlstra
2020-04-29 16:46 ` [PATCH v2 00/14] objtool vs retpoline Miroslav Benes
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