From 7d4320956f0f8aa2c36c23f209acc3e4c3ae52d6 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 6 Aug 2010 10:42:30 +0200 Subject: [PATCH] microblaze: Clear return value in pt_regs Signal code uses r3 value which saved in restore_sigcontext to rt_sigframe but it require to be zeroed. If is not zero rt_sigframe contains wrong values. Signed-off-by: Michal Simek --- arch/microblaze/kernel/entry.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index ab4f1e159308..8539c6c0e741 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -295,6 +295,8 @@ C_ENTRY(_user_exception): /* addik r1, r1, -STATE_SAVE_SIZE; */ addik r1, r1, THREAD_SIZE + CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE; SAVE_REGS + swi r0, r1, PTO + PT_R3 + swi r0, r1, PTO + PT_R4 lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); swi r11, r1, PTO+PT_R1; /* Store user SP. */