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>
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index 764886b..50d7c49 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -37,7 +37,7 @@
asmlinkage int
sys_sigsuspend(old_sigset_t mask,
unsigned long r5, unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
mask &= _BLOCKABLE;
spin_lock_irq(¤t->sighand->siglock);
@@ -52,7 +52,7 @@
return -ERESTARTNOHAND;
}
-asmlinkage int
+asmlinkage int
sys_sigaction(int sig, const struct old_sigaction __user *act,
struct old_sigaction __user *oact)
{
@@ -87,9 +87,11 @@
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
- return do_sigaltstack(uss, uoss, regs.regs[15]);
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+
+ return do_sigaltstack(uss, uoss, regs->regs[15]);
}
@@ -198,9 +200,10 @@
asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
- struct sigframe __user *frame = (struct sigframe __user *)regs.regs[15];
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+ struct sigframe __user *frame = (struct sigframe __user *)regs->regs[15];
sigset_t set;
int r0;
@@ -220,7 +223,7 @@
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- if (restore_sigcontext(®s, &frame->sc, &r0))
+ if (restore_sigcontext(regs, &frame->sc, &r0))
goto badframe;
return r0;
@@ -231,9 +234,10 @@
asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
- struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs.regs[15];
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+ struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->regs[15];
sigset_t set;
stack_t st;
int r0;
@@ -250,14 +254,14 @@
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- if (restore_sigcontext(®s, &frame->uc.uc_mcontext, &r0))
+ if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
goto badframe;
if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
goto badframe;
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
- do_sigaltstack(&st, NULL, regs.regs[15]);
+ do_sigaltstack(&st, NULL, regs->regs[15]);
return r0;