[tip: x86/bugs] x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros

From: tip-bot2 for Josh Poimboeuf
Date: Fri Aug 25 2023 - 06:20:35 EST


The following commit has been merged into the x86/bugs branch of tip:

Commit-ID: 03edd09ff88a4ecb6fd5b8c7999e62bf475b4e22
Gitweb: https://git.kernel.org/tip/03edd09ff88a4ecb6fd5b8c7999e62bf475b4e22
Author: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate: Fri, 25 Aug 2023 00:01:51 -07:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Fri, 25 Aug 2023 11:22:01 +02:00

x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros

Macros already exist for unaligned code block symbols. Use them.

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1ae65b98ddc256ebc446768d9d0c461675dd0437.1692919072.git.jpoimboe@xxxxxxxxxx
---
arch/x86/lib/retpoline.S | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index 8ba79d2..415521d 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -149,7 +149,7 @@ SYM_CODE_END(__x86_indirect_jump_thunk_array)
* As a result, srso_alias_safe_ret() becomes a safe return.
*/
.pushsection .text..__x86.rethunk_untrain
-SYM_START(srso_alias_untrain_ret, SYM_L_GLOBAL, SYM_A_NONE)
+SYM_CODE_START_NOALIGN(srso_alias_untrain_ret)
UNWIND_HINT_FUNC
ANNOTATE_NOENDBR
ASM_NOP2
@@ -159,7 +159,7 @@ SYM_FUNC_END(srso_alias_untrain_ret)
.popsection

.pushsection .text..__x86.rethunk_safe
-SYM_START(srso_alias_safe_ret, SYM_L_GLOBAL, SYM_A_NONE)
+SYM_CODE_START_NOALIGN(srso_alias_safe_ret)
lea 8(%_ASM_SP), %_ASM_SP
UNWIND_HINT_FUNC
ANNOTATE_UNRET_SAFE
@@ -187,7 +187,7 @@ SYM_CODE_END(srso_alias_return_thunk)
*/
.align 64
.skip 64 - (srso_safe_ret - srso_untrain_ret), 0xcc
-SYM_START(srso_untrain_ret, SYM_L_LOCAL, SYM_A_NONE)
+SYM_CODE_START_LOCAL_NOALIGN(srso_untrain_ret)
ANNOTATE_NOENDBR
.byte 0x48, 0xb8

@@ -255,7 +255,7 @@ SYM_CODE_END(srso_return_thunk)
*/
.align 64
.skip 64 - (retbleed_return_thunk - retbleed_untrain_ret), 0xcc
-SYM_START(retbleed_untrain_ret, SYM_L_LOCAL, SYM_A_NONE)
+SYM_CODE_START_LOCAL_NOALIGN(retbleed_untrain_ret)
ANNOTATE_NOENDBR
/*
* As executed from retbleed_untrain_ret, this is: