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sh: Support for SH-2A 32-bit opcodes.

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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>
This commit is contained in:
Paul Mundt
2007-05-08 14:50:59 +09:00
committed by Paul Mundt
parent 51c8b856f5
commit bd0799977c
6 changed files with 74 additions and 10 deletions
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5
arch/sh/kernel/process.c
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@@ -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)