int kgdb_arch_handle_exception()

in kernel/kgdb.c [174:210]

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

int kgdb_arch_handle_exception(int trap, int signo,
		int err_code, char *inbuf, char *outbuf,
		struct pt_regs *regs)
{
	unsigned long addr;
	char *p = inbuf + 1;

	switch (inbuf[0]) {
	case 'D':
	case 'c':
	case 'k':
		kgdb_contthread = NULL;
		kgdb_single_step = 0;

		if (kgdb_hex2long(&p, &addr))
			kgdb_arch_set_pc(regs, addr);
		else if (trap == 9 && regs->iir ==
				PARISC_KGDB_COMPILED_BREAK_INSN)
			step_instruction_queue(regs);
		return 0;
	case 's':
		kgdb_single_step = 1;
		if (kgdb_hex2long(&p, &addr)) {
			kgdb_arch_set_pc(regs, addr);
		} else if (trap == 9 && regs->iir ==
				PARISC_KGDB_COMPILED_BREAK_INSN) {
			step_instruction_queue(regs);
			mtctl(-1, 0);
		} else {
			mtctl(0, 0);
		}
		regs->gr[0] |= PSW_R;
		return 0;

	}
	return -1;
}