From 86bdb2779d67773edcfddfca4d6a4ae055e21964 Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Wed, 4 Dec 2013 14:35:28 +0000 Subject: [PATCH] MIPS: kernel: scall32-o32: Use EVA wrappers to fetch syscall arguments Arguments 4-8 are stored on user's stack, so use the EVA instructions to fetch them if EVA is enabled. Signed-off-by: Markos Chandras --- arch/mips/kernel/scall32-o32.S | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index ffe89139e0f9..fdc70b400442 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -6,6 +6,7 @@ * Copyright (C) 1995-99, 2000- 02, 06 Ralf Baechle * Copyright (C) 2001 MIPS Technologies, Inc. * Copyright (C) 2004 Thiemo Seufer + * Copyright (C) 2014 Imagination Technologies Ltd. */ #include #include @@ -74,10 +75,10 @@ NESTED(handle_sys, PT_SIZE, sp) .set noreorder .set nomacro -1: lw t5, 16(t0) # argument #5 from usp -4: lw t6, 20(t0) # argument #6 from usp -3: lw t7, 24(t0) # argument #7 from usp -2: lw t8, 28(t0) # argument #8 from usp +1: user_lw(t5, 16(t0)) # argument #5 from usp +4: user_lw(t6, 20(t0)) # argument #6 from usp +3: user_lw(t7, 24(t0)) # argument #7 from usp +2: user_lw(t8, 28(t0)) # argument #8 from usp sw t5, 16(sp) # argument #5 to ksp sw t6, 20(sp) # argument #6 to ksp -- GitLab