linux-kernel - Re: [PATCH] [ARM] Fix condition in arm_elf_read_implies_exec() to set READ_IMPLIES

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Message-ID: <703a7cde0902051841q6aa9dc10y2a19f2ddbb6a1b72@mail.gmail.com>
Date:	Fri, 6 Feb 2009 11:41:06 +0900
From:	Makito SHIOKAWA <lkhmkt@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [ARM] Fix condition in arm_elf_read_implies_exec() to set 
	READ_IMPLIES_EXEC

Additionally, XN bit seems to be supported from ARMv6.

Signed-off-by: Makito SHIOKAWA <lkhmkt@...il.com>
---
 arch/arm/kernel/elf.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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;
 }
--
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