linux-kernel - [PATCH 04/10] linkage: introduce ENTRY

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Date:   Fri, 17 Feb 2017 11:47:51 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     mingo@...hat.com
Cc:     tglx@...utronix.de, hpa@...or.com, x86@...nel.org,
        jpoimboe@...hat.com, linux-kernel@...r.kernel.org,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 04/10] linkage: introduce ENTRY_LOCAL

This will be used for local assembler functions, which do not want the
".globl" annotation. Sometimes we see:
===
	.align 4
	some_function:
	...
	ENDPROC(some_function)
===
which is not nice towards tools trying to analyze the assembly. (DWARF
generation in particular.)

So let us have ENTRY_LOCAL which is going to annotate these cases
including the alignment.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 include/linux/linkage.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index a6a42dd02466..ca5d5c01009b 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -78,11 +78,16 @@
 #define ALIGN __ALIGN
 #define ALIGN_STR __ALIGN_STR
 
+#ifndef ENTRY_LOCAL
+#define ENTRY_LOCAL(name) \
+	ALIGN ASM_NL \
+	name:
+#endif
+
 #ifndef ENTRY
 #define ENTRY(name) \
 	.globl name ASM_NL \
-	ALIGN ASM_NL \
-	name:
+	ENTRY_LOCAL(name)
 #endif
 #endif /* LINKER_SCRIPT */
 
-- 
2.11.1