long __kprobes get_reg()

in kernel/disasm.c [432:457]

• 22 lines of code
• 8 McCabe index (conditional complexity)

long __kprobes get_reg(int reg, struct pt_regs *regs,
		       struct callee_regs *cregs)
{
	long *p;

	if (reg <= 12) {
		p = &regs->r0;
		return p[-reg];
	}

	if (cregs && (reg <= 25)) {
		p = &cregs->r13;
		return p[13-reg];
	}

	if (reg == 26)
		return regs->r26;
	if (reg == 27)
		return regs->fp;
	if (reg == 28)
		return regs->sp;
	if (reg == 31)
		return regs->blink;

	return 0;
}