linux-kernel - [PATCH 2/3] jump label: move jump table to r/w section

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Message-Id: <bbc34a86a4cf4addcde1b85d7fa7faecc0966c03.1290546539.git.jbaron@redhat.com>
Date:	Tue, 23 Nov 2010 16:27:32 -0500
From:	Jason Baron <jbaron@...hat.com>
To:	rostedt@...dmis.org, mingo@...e.hu
Cc:	peterz@...radead.org, 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,
	sam@...nborg.org, ddaney@...iumnetworks.com,
	michael@...erman.id.au, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] jump label: move jump table to r/w section

Since we 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 bd69d79..9ca894d 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -161,6 +161,10 @@
 	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) = .;                          \
@@ -221,8 +225,6 @@
 									\
 	BUG_TABLE							\
 									\
-	JUMP_TABLE							\
-									\
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\
@@ -566,14 +568,6 @@
 #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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