sh: gcc4 support.

This fixes up the kernel for gcc4. The existing exception handlers
needed some wrapping for pt_regs access, acessing the registers
via a RELOC_HIDE() pointer.

The strcpy() issues popped up here too, so add -ffreestanding and
kill off the symbol export.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 944128ce9706..edf4d2d21336 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -84,9 +84,10 @@ static union irq_ctx *softirq_ctx[NR_CPUS];
 
 asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
                       unsigned long r6, unsigned long r7,
-                      struct pt_regs regs)
+                      struct pt_regs __regs)
 {
-        struct pt_regs *old_regs = set_irq_regs(&regs);
+        struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+        struct pt_regs *old_regs = set_irq_regs(regs);
         int irq;
 #ifdef CONFIG_4KSTACKS
         union irq_ctx *curctx, *irqctx;