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sh2(A) exception handler update

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This patch is

By sh2
- Remove duplicate code
- Reduce stack usage
- Cleanup and little optimize

By sh2a
- Add missing handler(256 to 511)
- Use sh2a instructions handler

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Yoshinori Sato
2008-07-10 01:20:03 +09:00
committed by Paul Mundt
parent cafd63b007
commit 6e80f5e8c4
6 changed files with 385 additions and 90 deletions
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4
arch/sh/kernel/traps_32.c
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@ -43,6 +43,7 @@
# define TRAP_ILLEGAL_SLOT_INST 6
# define TRAP_ADDRESS_ERROR 9
# ifdef CONFIG_CPU_SH2A
# define TRAP_FPU_ERROR 13
# define TRAP_DIVZERO_ERROR 17
# define TRAP_DIVOVF_ERROR 18
# endif
@ -851,6 +852,9 @@ void __init trap_init(void)
#ifdef CONFIG_CPU_SH2A
set_exception_table_vec(TRAP_DIVZERO_ERROR, do_divide_error);
set_exception_table_vec(TRAP_DIVOVF_ERROR, do_divide_error);
#ifdef CONFIG_SH_FPU
set_exception_table_vec(TRAP_FPU_ERROR, fpu_error_trap_handler);
#endif
#endif
/* Setup VBR for boot cpu */