On Monday 08 August 2011, Mark Salter wrote:
> + * Perform ptrace request
> + */
> +long arch_ptrace(struct task_struct *child, long request,
> + unsigned long addr, unsigned long data)
> +{
> + unsigned long __user *datap = (unsigned long __user *) data;
> + int ret = 0;
> +
> + switch (request) {
> + case PTRACE_PEEKUSR:
> + ret = ptrace_read_user(child, addr,
> + (unsigned long __user *) data);
> + break;
> +
> + /*
> + * write the word at location addr in the user registers.
> + */
> + case PTRACE_POKEUSR:
> + ret = -EIO;
> + if (addr & 3 || addr < 0 || addr >= PT_REG_SIZE)
> + break;
> +
> + ret = put_reg(child, (int)addr >> 2, data);
> + break;
I believe you no longer need to provide PTRACE_PEEKUSR/PTRACE_POKEUSR
when you have regset support for all your GPRs.
Arnd
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