Thread (21 messages) 21 messages, 5 authors, 2021-03-12

Re: [PATCH v22 8/8] x86/vdso: Add ENDBR64 to __vdso_sgx_enter_enclave

From: Borislav Petkov <bp@alien8.de>
Date: 2021-03-10 23:18:36
Also in: linux-arch, linux-doc, linux-mm, lkml

On Wed, Mar 10, 2021 at 02:55:55PM -0800, Yu, Yu-cheng wrote:
quoted
quoted
@@ -27,6 +27,9 @@
  SYM_FUNC_START(__vdso_sgx_enter_enclave)
  	/* Prolog */
  	.cfi_startproc
+#ifdef CONFIG_X86_CET
+	endbr64
+#endif
You can hide this ifdeffery in a macro and have

	ENDBR64

at the callsite and define

.macro ENDBR64
#ifdef CONFIG_X86_CET
	endbr64
#endif
.endm

or so, perhaps. Ditto for endbr32.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help