Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Chen Zhongjin <chenzhongjin@huawei.com>
To:     <linux-kernel@vger.kernel.org>, <linux-arch@vger.kernel.org>,
        <linuxppc-dev@lists.ozlabs.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kbuild@vger.kernel.org>, <live-patching@vger.kernel.org>
CC:     <jpoimboe@kernel.org>, <peterz@infradead.org>,
        <catalin.marinas@arm.com>, <will@kernel.org>,
        <masahiroy@kernel.org>, <michal.lkml@markovi.net>,
        <ndesaulniers@google.com>, <mark.rutland@arm.com>,
        <pasha.tatashin@soleen.com>, <broonie@kernel.org>,
        <chenzhongjin@huawei.com>, <rmk+kernel@armlinux.org.uk>,
        <madvenka@linux.microsoft.com>, <christophe.leroy@csgroup.eu>,
        <daniel.thompson@linaro.org>
Subject: [PATCH v6 16/33] arm64: kgdb: Add reachable annotation after kgdb brk
Date:   Thu, 23 Jun 2022 09:49:00 +0800
Message-ID: <20220623014917.199563-17-chenzhongjin@huawei.com>
In-Reply-To: <20220623014917.199563-1-chenzhongjin@huawei.com>
References: <20220623014917.199563-1-chenzhongjin@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

In the general use case, KGDB breakpoint handler should return normally
to the instruction following the brk.

Signed-off-by: Julien Thierry <jthierry@redhat.com>
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
---
 arch/arm64/include/asm/kgdb.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/kgdb.h b/arch/arm64/include/asm/kgdb.h
index 21fc85e9d2be..a8cb91d8d59b 100644
--- a/arch/arm64/include/asm/kgdb.h
+++ b/arch/arm64/include/asm/kgdb.h
@@ -19,6 +19,7 @@
 static inline void arch_kgdb_breakpoint(void)
 {
 	asm ("brk %0" : : "I" (KGDB_COMPILED_DBG_BRK_IMM));
+	annotate_reachable();
 }
 
 extern void kgdb_handle_bus_error(void);
-- 
2.17.1