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Date: Tue, 3 Sep 2024 23:37:36 -0700
From: Josh Poimboeuf <jpoimboe@kernel.org>
To: Song Liu <song@kernel.org>
Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
	x86@kernel.org, Miroslav Benes <mbenes@suse.cz>,
	Petr Mladek <pmladek@suse.com>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Jiri Kosina <jikos@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Marcos Paulo de Souza <mpdesouza@suse.com>
Subject: Re: [RFC 00/31] objtool, livepatch: Livepatch module generation
Message-ID: <20240904063736.c7ru2k5o7x35o2vy@treble>
References: <cover.1725334260.git.jpoimboe@kernel.org>
 <CAPhsuW6V-Scxv0yqyxmGW7e5XHmkSsHuSCdQ2qfKVbHpqu92xg@mail.gmail.com>
 <20240904043034.jwy4v2y4wkinjqe4@treble>
 <CAPhsuW6+6S5qBGEvFfVh7M-_-FntL=Rk=OqZzvQjpZ6MyDhNuA@mail.gmail.com>
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On Tue, Sep 03, 2024 at 10:26:02PM -0700, Song Liu wrote:
> Hi Josh,
> 
> I have attached the config I used for LLVM and gcc.

!IBT is triggering the ORC bug.  This should fix it:

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 518c70b8db50..643bfba65d48 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -60,7 +60,8 @@ vmlinux_link()
 	# skip output file argument
 	shift
 
-	if is_enabled CONFIG_LTO_CLANG || is_enabled CONFIG_X86_KERNEL_IBT; then
+	if is_enabled CONFIG_LTO_CLANG || is_enabled CONFIG_X86_KERNEL_IBT ||
+	   is_enabled CONFIG_LIVEPATCH; then
 		# Use vmlinux.o instead of performing the slow LTO link again.
 		objs=vmlinux.o
 		libs=