[RFC PATCH v6 10/11] x86/vsyscall/64: Add ENDBR64 to vsyscall entry points
From: Yu-cheng Yu <hidden>
Date: 2018-11-19 21:55:07
Also in:
linux-arch, linux-doc, linux-mm, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit), x86 entry code · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, Andy Lutomirski
From: "H.J. Lu" <redacted> Add ENDBR64 to vsyscall entry points. Signed-off-by: H.J. Lu <redacted> --- 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 c9596a9af159..08554445bef1 100644
--- a/arch/x86/entry/vsyscall/vsyscall_emu_64.S
+++ b/arch/x86/entry/vsyscall/vsyscall_emu_64.S@@ -18,16 +18,25 @@ __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