From: Alexandre Chartre <alexandre.chartre@oracle.com>
To: linux-kernel@vger.kernel.org, mingo@kernel.org,
jpoimboe@kernel.org, peterz@infradead.org
Cc: alexandre.chartre@oracle.com
Subject: [PATCH v4 15/28] objtool: Do not validate IBT for .return_sites and .call_sites
Date: Thu, 13 Nov 2025 17:49:04 +0100 [thread overview]
Message-ID: <20251113164917.2563486-16-alexandre.chartre@oracle.com> (raw)
In-Reply-To: <20251113164917.2563486-1-alexandre.chartre@oracle.com>
The .return_sites and .call_sites sections reference text addresses,
but not with the intent to indirect branch to them, so they don't
need to be validated for IBT.
This is useful when running objtool on object files which already
have .return_sites or .call_sites sections, for example to re-run
objtool after it has reported an error or a warning.
Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
---
tools/objtool/check.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 9321486e6265e..646cb7fe61b02 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -4627,6 +4627,8 @@ static int validate_ibt(struct objtool_file *file)
!strcmp(sec->name, ".llvm.call-graph-profile") ||
!strcmp(sec->name, ".llvm_bb_addr_map") ||
!strcmp(sec->name, "__tracepoints") ||
+ !strcmp(sec->name, ".return_sites") ||
+ !strcmp(sec->name, ".call_sites") ||
strstr(sec->name, "__patchable_function_entries"))
continue;
--
2.43.5
next prev parent reply other threads:[~2025-11-13 16:49 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 16:48 [PATCH v4 00/28] objtool: Function validation tracing Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 01/28] objtool: Move disassembly functions to a separated file Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 02/28] objtool: Create disassembly context Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 03/28] objtool: Disassemble code with libopcodes instead of running objdump Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 04/28] tool build: Remove annoying newline in build output Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 05/28] objtool: Print symbol during disassembly Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 06/28] objtool: Store instruction disassembly result Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 07/28] objtool: Disassemble instruction on warning or backtrace Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 08/28] objtool: Extract code to validate instruction from the validate branch loop Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 09/28] objtool: Record symbol name max length Alexandre Chartre
2025-11-13 16:48 ` [PATCH v4 10/28] objtool: Add option to trace function validation Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 11/28] objtool: Trace instruction state changes during " Alexandre Chartre
2025-11-14 21:21 ` Josh Poimboeuf
2025-11-17 7:33 ` Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 12/28] objtool: Improve register reporting " Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 13/28] objtool: Identify the different types of alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 14/28] objtool: Improve tracing of alternative instructions Alexandre Chartre
2025-11-13 16:49 ` Alexandre Chartre [this message]
2025-11-13 16:49 ` [PATCH v4 16/28] objtool: Add the --disas=<function-pattern> action Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 17/28] objtool: Print headers for alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 18/28] objtool: Disassemble group alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 19/28] objtool: Print addresses with alternative instructions Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 20/28] objtool: Disassemble exception table alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 21/28] objtool: Disassemble jump " Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 22/28] objtool: Fix address references in alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 23/28] objtool: Provide access to feature and flags of group alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 24/28] objtool: Function to get the name of a CPU feature Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 25/28] objtool: Improve naming of group alternatives Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 26/28] objtool: Get the destination name of a PV call Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 27/28] objtool: Improve the disassembly of the pv_ops call Alexandre Chartre
2025-11-15 1:34 ` kernel test robot
2025-11-17 7:37 ` Alexandre Chartre
2025-11-13 16:49 ` [PATCH v4 28/28] objtool: Print single line for alternatives with one instruction Alexandre Chartre
2025-11-13 19:55 ` [PATCH v4 00/28] objtool: Function validation tracing David Laight
2025-11-14 8:53 ` Alexandre Chartre
2025-11-14 1:48 ` Josh Poimboeuf
2025-11-14 9:56 ` Alexandre Chartre
2025-11-14 21:34 ` Josh Poimboeuf
2025-11-17 7:50 ` Alexandre Chartre
2025-11-17 9:42 ` David Laight
2025-11-17 9:47 ` Alexandre Chartre
2025-11-17 12:37 ` David Laight
2025-11-17 13:11 ` Alexandre Chartre
2025-11-17 22:09 ` David Laight
2025-11-17 22:38 ` Josh Poimboeuf
2025-11-18 9:58 ` David Laight
2025-11-18 7:19 ` Alexandre Chartre
2025-11-18 9:12 ` Peter Zijlstra
2025-11-18 11:39 ` Alexandre Chartre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251113164917.2563486-16-alexandre.chartre@oracle.com \
--to=alexandre.chartre@oracle.com \
--cc=jpoimboe@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®