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>
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 @@
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 @@
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)
