void __init trap_init()

in kernel/vectors.c [74:143]

• 58 lines of code
• 11 McCabe index (conditional complexity)

void __init trap_init (void)
{
	int i;

	for (i = VEC_SPUR; i <= VEC_INT7; i++)
		vectors[i] = bad_inthandler;

	for (i = 0; i < VEC_USER; i++)
		if (!vectors[i])
			vectors[i] = trap;

	for (i = VEC_USER; i < 256; i++)
		vectors[i] = bad_inthandler;

#ifdef CONFIG_M68KFPU_EMU
	if (FPU_IS_EMU)
		vectors[VEC_LINE11] = fpu_emu;
#endif

	if (CPU_IS_040 && !FPU_IS_EMU) {
		/* set up FPSP entry points */
		asmlinkage void dz_vec(void) asm ("dz");
		asmlinkage void inex_vec(void) asm ("inex");
		asmlinkage void ovfl_vec(void) asm ("ovfl");
		asmlinkage void unfl_vec(void) asm ("unfl");
		asmlinkage void snan_vec(void) asm ("snan");
		asmlinkage void operr_vec(void) asm ("operr");
		asmlinkage void bsun_vec(void) asm ("bsun");
		asmlinkage void fline_vec(void) asm ("fline");
		asmlinkage void unsupp_vec(void) asm ("unsupp");

		vectors[VEC_FPDIVZ] = dz_vec;
		vectors[VEC_FPIR] = inex_vec;
		vectors[VEC_FPOVER] = ovfl_vec;
		vectors[VEC_FPUNDER] = unfl_vec;
		vectors[VEC_FPNAN] = snan_vec;
		vectors[VEC_FPOE] = operr_vec;
		vectors[VEC_FPBRUC] = bsun_vec;
		vectors[VEC_LINE11] = fline_vec;
		vectors[VEC_FPUNSUP] = unsupp_vec;
	}

	if (CPU_IS_060 && !FPU_IS_EMU) {
		/* set up IFPSP entry points */
		asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan");
		asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr");
		asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl");
		asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl");
		asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz");
		asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex");
		asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline");
		asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp");
		asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd");

		vectors[VEC_FPNAN] = snan_vec6;
		vectors[VEC_FPOE] = operr_vec6;
		vectors[VEC_FPOVER] = ovfl_vec6;
		vectors[VEC_FPUNDER] = unfl_vec6;
		vectors[VEC_FPDIVZ] = dz_vec6;
		vectors[VEC_FPIR] = inex_vec6;
		vectors[VEC_LINE11] = fline_vec6;
		vectors[VEC_FPUNSUP] = unsupp_vec6;
		vectors[VEC_UNIMPEA] = effadd_vec6;
	}

        /* if running on an amiga, make the NMI interrupt do nothing */
	if (MACH_IS_AMIGA) {
		vectors[VEC_INT7] = nmihandler;
	}
}