diff options
| author |   Stuart Menefy <stuart.menefy@st.com> | 2006-11-21 11:16:57 +0900 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2006-12-06 10:45:38 +0900 |
| commit | f0bc814cfbc212683c882e58b3d1afec6b3e3aa3 (patch) | |
| tree | 8ad669003716a3c22fb43e9c2066dcc5e5e0ad2d /arch/sh/kernel/cpu/sh4/fpu.c | |
| parent | sh: Explicit endian selection support. (diff) | |
| download | linux-dev-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.tar.xz linux-dev-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.zip | |
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>
Diffstat (limited to 'arch/sh/kernel/cpu/sh4/fpu.c')
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/fpu.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c index f486c07e10e2..378b488237c9 100644 --- a/arch/sh/kernel/cpu/sh4/fpu.c +++ b/arch/sh/kernel/cpu/sh4/fpu.c @@ -296,16 +296,17 @@ ieee_fpe_handler (struct pt_regs *regs) } asmlinkage void -do_fpu_error(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, - struct pt_regs regs) +do_fpu_error(unsigned long r4, unsigned long r5, unsigned long r6, + unsigned long r7, struct pt_regs __regs) { + struct pt_regs *regs = RELOC_HIDE(&__regs, 0); struct task_struct *tsk = current; - if (ieee_fpe_handler (®s)) + if (ieee_fpe_handler(regs)) return; - regs.pc += 2; - save_fpu(tsk, ®s); + regs->pc += 2; + save_fpu(tsk, regs); tsk->thread.trap_no = 11; tsk->thread.error_code = 0; force_sig(SIGFPE, tsk); @@ -313,12 +314,13 @@ do_fpu_error(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long asmlinkage void do_fpu_state_restore(unsigned long r4, unsigned long r5, unsigned long r6, - unsigned long r7, struct pt_regs regs) + unsigned long r7, struct pt_regs __regs) { + struct pt_regs *regs = RELOC_HIDE(&__regs, 0); struct task_struct *tsk = current; - grab_fpu(®s); - if (!user_mode(®s)) { + grab_fpu(regs); + if (!user_mode(regs)) { printk(KERN_ERR "BUG: FPU is used in kernel mode.\n"); return; } |