From: Makito SHIOKAWA <lkhmkt@gmail.com>
Date: Thu, 19 Feb 2009 14:34:59 +0000 (+0100)
Subject: [ARM] 5404/1: Fix condition in arm_elf_read_implies_exec() to set READ_IMPLIES_EXEC
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=9da616fb9946c8d65387052e5a538b8f54ddb292;p=linux-2.6-omap-h63xx.git

[ARM] 5404/1: Fix condition in arm_elf_read_implies_exec() to set READ_IMPLIES_EXEC

READ_IMPLIES_EXEC must be set when:
o binary _is_ an executable stack (i.e. not EXSTACK_DISABLE_X)
o processor architecture is _under_ ARMv6 (XN bit is supported from ARMv6)

Signed-off-by: Makito SHIOKAWA <lkhmkt@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 84849098c8e..d4a0da1e48f 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -74,9 +74,9 @@ EXPORT_SYMBOL(elf_set_personality);
  */
 int arm_elf_read_implies_exec(const struct elf32_hdr *x, int executable_stack)
 {
-	if (executable_stack != EXSTACK_ENABLE_X)
+	if (executable_stack != EXSTACK_DISABLE_X)
 		return 1;
-	if (cpu_architecture() <= CPU_ARCH_ARMv6)
+	if (cpu_architecture() < CPU_ARCH_ARMv6)
 		return 1;
 	return 0;
 }