// SPDX-License-Identifier: GPL-2.0-or-later /* * OpenRISC asm-offsets.c * * Linux architectural port borrowing liberally from similar works of * others. All original copyrights apply as per the original source * declaration. * * Modifications for the OpenRISC architecture: * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> * * This program is used to generate definitions needed by * assembly language modules. * * We use the technique used in the OSF Mach kernel code: * generate asm statements containing #defines, * compile this file to assembler, and then extract the * #defines from the assembly-language output. */ #include <linux/signal.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/types.h> #include <linux/ptrace.h> #include <linux/mman.h> #include <linux/mm.h> #include <linux/io.h> #include <linux/thread_info.h> #include <linux/kbuild.h> #include <asm/page.h> #include <asm/processor.h> int main(void) { /* offsets into the task_struct */ DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); DEFINE(TASK_MM, offsetof(struct task_struct, mm)); DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); /* offsets into thread_info */ DEFINE(TI_TASK, offsetof(struct thread_info, task)); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); DEFINE(TI_KSP, offsetof(struct thread_info, ksp)); DEFINE(PT_SIZE, sizeof(struct pt_regs)); /* Interrupt register frame */ DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD); DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs)); DEFINE(NUM_USER_SEGMENTS, TASK_SIZE >> 28); return 0; }