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Message-Id: <20190813205359.12196-11-yu-cheng.yu@intel.com>
Date:   Tue, 13 Aug 2019 13:53:55 -0700
From:   Yu-cheng Yu <yu-cheng.yu@...el.com>
To:     x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-mm@...ck.org,
        linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Andy Lutomirski <luto@...capital.net>,
        Balbir Singh <bsingharora@...il.com>,
        Borislav Petkov <bp@...en8.de>,
        Cyrill Gorcunov <gorcunov@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Eugene Syromiatnikov <esyr@...hat.com>,
        Florian Weimer <fweimer@...hat.com>,
        "H.J. Lu" <hjl.tools@...il.com>, Jann Horn <jannh@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Oleg Nesterov <oleg@...hat.com>, Pavel Machek <pavel@....cz>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Ravi V. Shankar" <ravi.v.shankar@...el.com>,
        Vedvyas Shanbhogue <vedvyas.shanbhogue@...el.com>,
        Dave Martin <Dave.Martin@....com>
Cc:     Yu-cheng Yu <yu-cheng.yu@...el.com>
Subject: [PATCH v8 10/14] x86/vsyscall/64: Add ENDBR64 to vsyscall entry points

From: "H.J. Lu" <hjl.tools@...il.com>

Add ENDBR64 to vsyscall entry points.

Acked-by: Andy Lutomirski <luto@...nel.org>
Signed-off-by: H.J. Lu <hjl.tools@...il.com>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@...el.com>
---
 arch/x86/entry/vsyscall/vsyscall_emu_64.S | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86/entry/vsyscall/vsyscall_emu_64.S b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
index 2e203f3a25a7..040696333457 100644
--- a/arch/x86/entry/vsyscall/vsyscall_emu_64.S
+++ b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
@@ -17,16 +17,25 @@ __PAGE_ALIGNED_DATA
 	.type __vsyscall_page, @object
 __vsyscall_page:
 
+#ifdef CONFIG_X86_INTEL_BRANCH_TRACKING_USER
+	endbr64
+#endif
 	mov $__NR_gettimeofday, %rax
 	syscall
 	ret
 
 	.balign 1024, 0xcc
+#ifdef CONFIG_X86_INTEL_BRANCH_TRACKING_USER
+	endbr64
+#endif
 	mov $__NR_time, %rax
 	syscall
 	ret
 
 	.balign 1024, 0xcc
+#ifdef CONFIG_X86_INTEL_BRANCH_TRACKING_USER
+	endbr64
+#endif
 	mov $__NR_getcpu, %rax
 	syscall
 	ret
-- 
2.17.1

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