C++ (Cpp) alternatives_text_reserved Examples

Example #1

File: kprobes.c Project: 12rafael/jellytimekernel

int __kprobes arch_prepare_kprobe(struct kprobe *p)
{
	if (alternatives_text_reserved(p->addr, p->addr))
		return -EINVAL;

	if (!can_probe((unsigned long)p->addr))
		return -EILSEQ;
	/* insn: must be on special executable page on x86. */
	p->ainsn.insn = get_insn_slot();
	if (!p->ainsn.insn)
		return -ENOMEM;
	arch_copy_kprobe(p);
	return 0;
}

Example #2

File: core.c Project: Camedpuffer/linux

int arch_prepare_kprobe(struct kprobe *p)
{
	int ret;

	if (alternatives_text_reserved(p->addr, p->addr))
		return -EINVAL;

	if (!can_probe((unsigned long)p->addr))
		return -EILSEQ;
	/* insn: must be on special executable page on x86. */
	p->ainsn.insn = get_insn_slot();
	if (!p->ainsn.insn)
		return -ENOMEM;

	ret = arch_copy_kprobe(p);
	if (ret) {
		free_insn_slot(p->ainsn.insn, 0);
		p->ainsn.insn = NULL;
	}

	return ret;
}