libsandbox/trace/linux/bfin.c


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#define trace_sysnum_puser PT_ORIG_P0

static long trace_raw_ret(void *vregs)
{
	trace_regs *regs = vregs;
	return regs->r0;
}

static void trace_set_ret(void *vregs, int err)
{
	do_pokeuser(PT_R0, -err);
}

static unsigned long trace_arg(void *vregs, int num)
{
	trace_regs *regs = vregs;
	switch (num) {
		case 1: return regs->r0;
		case 2: return regs->r1;
		case 3: return regs->r2;
		case 4: return regs->r3;
		case 5: return regs->r4;
		case 6: return regs->r5;
		default: return -1;
	}
}