On Mon, Nov 19, 2018 at 1:55 PM Yu-cheng Yu [off-list ref] wrote:
quoted hunk ↗ jump to hunk
From: "H.J. Lu" <redacted>
When Intel indirect branch tracking is enabled, functions in vDSO which
may be called indirectly must have endbr32 or endbr64 as the first
instruction. Compiler must support -fcf-protection=branch so that it
can be used to compile vDSO.
Signed-off-by: H.J. Lu <redacted>
---
arch/x86/entry/vdso/.gitignore | 4 ++++
arch/x86/entry/vdso/Makefile | 12 +++++++++++-
arch/x86/entry/vdso/vdso-layout.lds.S | 1 +
3 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/arch/x86/entry/vdso/.gitignore b/arch/x86/entry/vdso/.gitignore
index aae8ffdd5880..552941fdfae0 100644
--- a/arch/x86/entry/vdso/.gitignore
+++ b/arch/x86/entry/vdso/.gitignore
@@ -5,3 +5,7 @@ vdso32-sysenter-syms.lds
vdso32-int80-syms.lds
vdso-image-*.c
vdso2c
+vclock_gettime.S
+vgetcpu.S
+vclock_gettime.asm
+vgetcpu.asm
What's this hunk about?