linux-kernel - [PATCH v5 16/30] objtool: Do not validate IBT for .return_sites and .call

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Message-ID: <20251119143247.3944213-17-alexandre.chartre@oracle.com>
Date: Wed, 19 Nov 2025 15:32:33 +0100
From: Alexandre Chartre <alexandre.chartre@...cle.com>
To: linux-kernel@...r.kernel.org, mingo@...nel.org, jpoimboe@...nel.org,
        peterz@...radead.org, david.laight.linux@...il.com
Cc: alexandre.chartre@...cle.com
Subject: [PATCH v5 16/30] objtool: Do not validate IBT for .return_sites and .call_sites

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@...cle.com>
---
 tools/objtool/check.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index fb000923718dc..0da86834ab2ab 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -4805,6 +4805,8 @@ 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")			||
 		    !strcmp(sec->name, "__patchable_function_entries"))
 			continue;
 
-- 
2.43.5