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authorPaul Mundt <lethal@linux-sh.org>2007-05-08 14:50:59 +0900
committerPaul Mundt <lethal@hera.kernel.org>2007-05-09 01:35:01 +0000
commitbd0799977cb9b68aa6a39e9630aeea4778a58385 (patch)
tree125c0c923701c5b6f823a7b614c295e06370d46c /arch/sh/kernel/process.c
parent51c8b856f5edfa45d956721aa6d6ebaa15699062 (diff)
downloadop-kernel-dev-bd0799977cb9b68aa6a39e9630aeea4778a58385.zip
op-kernel-dev-bd0799977cb9b68aa6a39e9630aeea4778a58385.tar.gz
sh: Support for SH-2A 32-bit opcodes.
SH-2A supports both 16 and 32-bit instructions, add a simple helper for figuring out the instruction size in the places where there are hardcoded 16-bit assumptions. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/process.c')
-rw-r--r--arch/sh/kernel/process.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 4688b89..209cc9b 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -19,6 +19,7 @@
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
+#include <asm/system.h>
#include <asm/ubc.h>
static int hlt_counter;
@@ -497,7 +498,7 @@ asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
/* Rewind */
- regs->pc -= 2;
+ regs->pc -= instruction_size(regs->pc);
if (notify_die(DIE_TRAP, regs, regs->tra & 0xff,
SIGTRAP) == NOTIFY_STOP)
@@ -516,7 +517,7 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
/* Rewind */
- regs->pc -= 2;
+ regs->pc -= instruction_size(regs->pc);
if (notify_die(DIE_TRAP, regs, TRAPA_BUG_OPCODE & 0xff,
SIGTRAP) == NOTIFY_STOP)
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