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authorRabin Vincent <rabin@rab.in>2010-01-18 15:04:32 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-01-18 14:12:11 +0000
commita7b22962776109b5bfe3a3efa4f42622318c547d (patch)
treef3ed45fc8504a862f909f55a3a4ba93bb11f9ec2
parentb53e9b5ebd5c6e718f54bcacd4e97b71533ca681 (diff)
ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels"
This reverts commit 14f0aa359365e8a93a77b71e3b840274b9b4dcb1. That commit was needed earlier because system call restarting for OABI (compat) required an executable stack and thus had problems with NX. Since ab72b00734ae4d0b ("ARM: Fix signal restart issues with NX and OABI compat") has reworked the code to not require an executable stack anymore, we can re-enable NX support for kernels with OABI (compat) support. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/kernel/elf.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 950391f194c..d4a0da1e48f 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -78,15 +78,6 @@ int arm_elf_read_implies_exec(const struct elf32_hdr *x, int executable_stack)
return 1;
if (cpu_architecture() < CPU_ARCH_ARMv6)
return 1;
-#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
- /*
- * If we have support for OABI programs, we can never allow NX
- * support - our signal syscall restart mechanism relies upon
- * being able to execute code placed on the user stack.
- */
- return 1;
-#else
return 0;
-#endif
}
EXPORT_SYMBOL(arm_elf_read_implies_exec);