From: Andreas Schwab <[email protected]> This will be needed by the ARAnyM Native Feature initialization code. Also document that the VEC_TRACE check is needed for 68020/30.
Signed-off-by: Andreas Schwab <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]> --- arch/m68k/kernel/traps.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index cd802d4..4022bbc 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -58,6 +58,7 @@ asm(".text\n" /* * this must be called very early as the kernel might * use some instruction that are emulated on the 060 + * and so we're prepared for early probe attempts (e.g. nf_init). */ void __init base_trap_init(void) { @@ -78,6 +79,7 @@ void __init base_trap_init(void) } vectors[VEC_BUSERR] = buserr; + vectors[VEC_ILLEGAL] = trap; vectors[VEC_SYS] = system_call; } @@ -1055,9 +1057,11 @@ asmlinkage void trap_c(struct frame *fp) siginfo_t info; if (fp->ptregs.sr & PS_S) { - if ((fp->ptregs.vector >> 2) == VEC_TRACE) { - /* traced a trapping instruction */ - } else + if (fp->ptregs.vector == VEC_TRACE << 2) { + /* traced a trapping instruction on a 68020/30, + * real exception will be executed afterwards. + */ + } else if (!handle_kernel_fault(&fp->ptregs)) bad_super_trap(fp); return; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
