cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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asm-offsets.c (1932B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * OpenRISC asm-offsets.c
      4 *
      5 * Linux architectural port borrowing liberally from similar works of
      6 * others.  All original copyrights apply as per the original source
      7 * declaration.
      8 *
      9 * Modifications for the OpenRISC architecture:
     10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
     11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
     12 *
     13 * This program is used to generate definitions needed by
     14 * assembly language modules.
     15 *
     16 * We use the technique used in the OSF Mach kernel code:
     17 * generate asm statements containing #defines,
     18 * compile this file to assembler, and then extract the
     19 * #defines from the assembly-language output.
     20 */
     21
     22#include <linux/signal.h>
     23#include <linux/sched.h>
     24#include <linux/kernel.h>
     25#include <linux/errno.h>
     26#include <linux/string.h>
     27#include <linux/types.h>
     28#include <linux/ptrace.h>
     29#include <linux/mman.h>
     30#include <linux/mm.h>
     31#include <linux/io.h>
     32#include <linux/thread_info.h>
     33#include <linux/kbuild.h>
     34#include <asm/page.h>
     35#include <asm/processor.h>
     36
     37int main(void)
     38{
     39	/* offsets into the task_struct */
     40	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
     41	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
     42	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
     43	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
     44	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
     45
     46	/* offsets into thread_info */
     47	DEFINE(TI_TASK, offsetof(struct thread_info, task));
     48	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
     49	DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
     50	DEFINE(TI_KSP, offsetof(struct thread_info, ksp));
     51
     52	DEFINE(PT_SIZE, sizeof(struct pt_regs));
     53
     54	/* Interrupt register frame */
     55	DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
     56	DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
     57
     58	DEFINE(NUM_USER_SEGMENTS, TASK_SIZE >> 28);
     59	return 0;
     60}