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| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2022-08-19 00:39:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:45:39 +0300 |
| commit | fe5a22a2925a9cd6f2afe1ea0991333eb5d4491d (patch) | |
| tree | 957ea98039a844ffc324877afbe2015b0edbb6cf /tools | |
| parent | e124bab08a51d80badd94fef78a8284fbe49799c (diff) | |
| download | linux-fe5a22a2925a9cd6f2afe1ea0991333eb5d4491d.tar.xz | |
x86/ibt, objtool: Add IBT_NOSEAL()
[ Upstream commit e27e5bea956ce4d3eb15112de5fa5a3b77c2f488 ]
Add a macro which prevents a function from getting sealed if there are
no compile-time references to it.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Message-Id: <20220818213927.e44fmxkoq4yj6ybn@treble>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/objtool/check.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index b341f8a8c7c5..31c719f99f66 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -4096,7 +4096,8 @@ static int validate_ibt(struct objtool_file *file) * These sections can reference text addresses, but not with * the intent to indirect branch to them. */ - if (!strncmp(sec->name, ".discard", 8) || + if ((!strncmp(sec->name, ".discard", 8) && + strcmp(sec->name, ".discard.ibt_endbr_noseal")) || !strncmp(sec->name, ".debug", 6) || !strcmp(sec->name, ".altinstructions") || !strcmp(sec->name, ".ibt_endbr_seal") || |