static int genregs_get()

in kernel/ptrace.c [22:42]

• 20 lines of code
• 1 McCabe index (conditional complexity)

static int genregs_get(struct task_struct *target,
		       const struct user_regset *regset,
		       struct membuf to)
{
	const struct pt_regs *regs = task_pt_regs(target);
	const struct switch_stack *sw = (struct switch_stack *)regs - 1;

	membuf_zero(&to, 4); // R0
	membuf_write(&to, &regs->r1, 7 * 4); // R1..R7
	membuf_write(&to, &regs->r8, 8 * 4); // R8..R15
	membuf_write(&to, sw, 8 * 4); // R16..R23
	membuf_zero(&to, 2 * 4); /* et and bt */
	membuf_store(&to, regs->gp);
	membuf_store(&to, regs->sp);
	membuf_store(&to, regs->fp);
	membuf_store(&to, regs->ea);
	membuf_zero(&to, 4); // PTR_BA
	membuf_store(&to, regs->ra);
	membuf_store(&to, regs->ea); /* use ea for PC */
	return membuf_zero(&to, (NUM_PTRACE_REG - PTR_PC) * 4);
}