C++ (Cpp) REG_RES Beispiele

Beispiel #1

Datei: parasite-syscall.c Projekt: kunalkushwaha/crtools

static int parasite_execute_by_pid(unsigned int cmd, struct parasite_ctl *ctl, pid_t pid)
{
	int ret;
	user_regs_struct_t regs_orig, regs;

	if (ctl->pid.real == pid)
		regs = ctl->regs_orig;
	else {
		if (ptrace(PTRACE_GETREGS, pid, NULL, &regs_orig)) {
			pr_perror("Can't obtain registers (pid: %d)", pid);
			return -1;
		}
		regs = regs_orig;
	}

	*ctl->addr_cmd = cmd;

	parasite_setup_regs(ctl->parasite_ip, &regs);

	ret = __parasite_execute(ctl, pid, &regs);
	if (ret == 0)
		ret = (int)REG_RES(regs);

	if (ret)
		pr_err("Parasite exited with %d\n", ret);

	if (ctl->pid.real != pid)
		if (ptrace(PTRACE_SETREGS, pid, NULL, &regs_orig)) {
			pr_perror("Can't restore registers (pid: %d)", pid);
			return -1;
		}

	return ret;
}

Beispiel #2

Datei: infect.c Projekt: Snorch/criu

int compel_run_in_thread(struct parasite_thread_ctl *tctl, unsigned int cmd)
{
	int pid = tctl->tid;
	struct parasite_ctl *ctl = tctl->ctl;
	struct thread_ctx *octx = &tctl->th;
	void *stack = ctl->r_thread_stack;
	user_regs_struct_t regs = octx->regs;
	int ret;

	*ctl->addr_cmd = cmd;

	ret = parasite_run(pid, PTRACE_CONT, ctl->parasite_ip, stack, &regs, octx);
	if (ret == 0)
		ret = parasite_trap(ctl, pid, &regs, octx);
	if (ret == 0)
		ret = (int)REG_RES(regs);

	if (ret)
		pr_err("Parasite exited with %d\n", ret);

	return ret;
}