linux-kernel - [PATCH 4/5] jump label: move jump table to r/w section

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Message-Id: <e37e4c270ba893644ef3c2f0365e2448b8b3981b.1285965957.git.jbaron@redhat.com>
Date:	Fri, 1 Oct 2010 17:23:58 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	rostedt@...dmis.org, mingo@...e.hu
Cc:	mathieu.desnoyers@...ymtl.ca, hpa@...or.com, tglx@...utronix.de,
	andi@...stfloor.org, roland@...hat.com, rth@...hat.com,
	masami.hiramatsu.pt@...achi.com, fweisbec@...il.com,
	avi@...hat.com, davem@...emloft.net, vgoyal@...hat.com,
	sam@...nborg.org, tony@...eyournoodle.com,
	ddaney@...iumnetworks.com, linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] jump label: move jump table to r/w section

Since we are writing the jump table it should be be in R/W kernel
section. Move it to DATA_DATA

Signed-off-by: Jason Baron <jbaron@...hat.com>
---
 include/asm-generic/vmlinux.lds.h |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index ef2af99..24e2daf 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -160,6 +160,10 @@
 	VMLINUX_SYMBOL(__start___tracepoints) = .;			\
 	*(__tracepoints)						\
 	VMLINUX_SYMBOL(__stop___tracepoints) = .;			\
+	. = ALIGN(8);							\
+	VMLINUX_SYMBOL(__start___jump_table) = .;			\
+	*(__jump_table)							\
+	VMLINUX_SYMBOL(__stop___jump_table) = .;			\
 	/* implement dynamic printk debug */				\
 	. = ALIGN(8);							\
 	VMLINUX_SYMBOL(__start___verbose) = .;                          \
@@ -220,8 +224,6 @@
 									\
 	BUG_TABLE							\
 									\
-	JUMP_TABLE							\
-									\
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\
@@ -565,14 +567,6 @@
 #define BUG_TABLE
 #endif
 
-#define JUMP_TABLE							\
-	. = ALIGN(8);							\
-	__jump_table : AT(ADDR(__jump_table) - LOAD_OFFSET) {		\
-		VMLINUX_SYMBOL(__start___jump_table) = .;		\
-		*(__jump_table)						\
-		VMLINUX_SYMBOL(__stop___jump_table) = .;		\
-	}
-
 #ifdef CONFIG_PM_TRACE
 #define TRACEDATA							\
 	. = ALIGN(4);							\
-- 
1.7.1

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