From: "tip-bot2 for Peter Zijlstra" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: x86/urgent] x86,xen,objtool: Add UNWIND hint
Date: Tue, 19 Apr 2022 20:08:43 -0000 [thread overview]
Message-ID: <165039892316.4207.7405922361985895288.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20220408094718.321246297@infradead.org>
The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: 2730d3c14a85617c177337f2e2af2108bf82c4ca
Gitweb: https://git.kernel.org/tip/2730d3c14a85617c177337f2e2af2108bf82c4ca
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Fri, 08 Apr 2022 11:45:54 +02:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Tue, 19 Apr 2022 21:58:47 +02:00
x86,xen,objtool: Add UNWIND hint
SYM_CODE_START*() doesn't get auto-validated and needs an UNWIND hint
to get checked, add one.
vmlinux.o: warning: objtool: pvh_start_xen()+0x0: unreachable
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220408094718.321246297@infradead.org
---
arch/x86/platform/pvh/head.S | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 72c1e42..7fe564e 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -50,6 +50,7 @@
#define PVH_DS_SEL (PVH_GDT_ENTRY_DS * 8)
SYM_CODE_START_LOCAL(pvh_start_xen)
+ UNWIND_HINT_EMPTY
cld
lgdt (_pa(gdt))
next prev parent reply other threads:[~2022-04-19 20:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 9:45 [PATCH 0/4] objtool: Fixes Peter Zijlstra
2022-04-08 9:45 ` [PATCH 1/4] lib/strn*,objtool: Enforce user_access_begin() rules Peter Zijlstra
2022-04-08 14:09 ` Josh Poimboeuf
2022-04-19 20:08 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2022-04-08 9:45 ` [PATCH 2/4] x86,xen,objtool: Add UNWIND hint Peter Zijlstra
2022-04-19 20:08 ` tip-bot2 for Peter Zijlstra [this message]
2022-04-08 9:45 ` [PATCH 3/4] x86,objtool: Mark cpu_startup_entry() __noreturn Peter Zijlstra
2022-04-11 20:32 ` Josh Poimboeuf
2022-04-12 15:13 ` Josh Poimboeuf
2022-04-19 20:08 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2022-04-08 9:45 ` [PATCH 4/4] x86,objtool: Explicitly mark idtentry_body()s tail REACHABLE Peter Zijlstra
2022-04-19 20:08 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2022-04-08 14:10 ` [PATCH 0/4] objtool: Fixes Josh Poimboeuf
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