linux-kernel - [PATCH v2 6/8] arm64: Add a wrapper for personality() syscall

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Message-Id: <1456393968-17386-7-git-send-email-suzuki.poulose@arm.com>
Date:	Thu, 25 Feb 2016 09:52:46 +0000
From:	Suzuki K Poulose <suzuki.poulose@....com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	marc.zyngier@....com, christoffer.dall@...aro.org,
	will.deacon@....com, ynorov@...iumnetworks.com,
	catalin.marinas@....com, mark.rutland@....com,
	linux-kernel@...r.kernel.org, kvmarm@...ts.cs.columbia.edu,
	Suzuki K Poulose <suzuki.poulose@....com>
Subject: [PATCH v2 6/8] arm64: Add a wrapper for personality() syscall

In order to prevent setting PER_LINUX32 on systems without
32bit EL0 support, add a wrapper for personality() syscall.

Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
---
 arch/arm64/kernel/sys.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
index 75151aa..817d860 100644
--- a/arch/arm64/kernel/sys.c
+++ b/arch/arm64/kernel/sys.c
@@ -36,11 +36,17 @@ asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 }
 
+SYSCALL_DEFINE1(arm64_personality, unsigned int, personality)
+{
+	return sys_personality(personality);
+}
+
 /*
  * Wrappers to pass the pt_regs argument.
  */
 asmlinkage long sys_rt_sigreturn_wrapper(void);
 #define sys_rt_sigreturn	sys_rt_sigreturn_wrapper
+#define sys_personality		sys_arm64_personality
 
 #undef __SYSCALL
 #define __SYSCALL(nr, sym)	[nr] = sym,
-- 
1.7.9.5