forked from rpms/glibc
49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
From fc5bd179ef3a953dff8d1655bd530d0e230ffe71 Mon Sep 17 00:00:00 2001
|
|
From: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
Date: Tue, 21 Sep 2021 18:31:49 -0500
|
|
Subject: [PATCH] x86: Modify ENTRY in sysdep.h so that p2align can be
|
|
specified
|
|
Content-type: text/plain; charset=UTF-8
|
|
|
|
No bug.
|
|
|
|
This change adds a new macro ENTRY_P2ALIGN which takes a second
|
|
argument, log2 of the desired function alignment.
|
|
|
|
The old ENTRY(name) macro is just ENTRY_P2ALIGN(name, 4) so this
|
|
doesn't affect any existing functionality.
|
|
|
|
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
---
|
|
sysdeps/x86/sysdep.h | 7 +++++--
|
|
1 file changed, 5 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/sysdeps/x86/sysdep.h b/sysdeps/x86/sysdep.h
|
|
index 01bac0f6..a70bb3a2 100644
|
|
--- a/sysdeps/x86/sysdep.h
|
|
+++ b/sysdeps/x86/sysdep.h
|
|
@@ -78,15 +78,18 @@ enum cf_protection_level
|
|
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
|
|
|
|
/* Define an entry point visible from C. */
|
|
-#define ENTRY(name) \
|
|
+#define ENTRY_P2ALIGN(name, alignment) \
|
|
.globl C_SYMBOL_NAME(name); \
|
|
.type C_SYMBOL_NAME(name),@function; \
|
|
- .align ALIGNARG(4); \
|
|
+ .align ALIGNARG(alignment); \
|
|
C_LABEL(name) \
|
|
cfi_startproc; \
|
|
_CET_ENDBR; \
|
|
CALL_MCOUNT
|
|
|
|
+/* Common entry 16 byte aligns. */
|
|
+#define ENTRY(name) ENTRY_P2ALIGN (name, 4)
|
|
+
|
|
#undef END
|
|
#define END(name) \
|
|
cfi_endproc; \
|
|
--
|
|
GitLab
|
|
|