LXR linux/arch/h8300/kernel/asm-offsets.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * This program is used to generate definitions needed by
   4 * assembly language modules.
   5 *
   6 * We use the technique used in the OSF Mach kernel code:
   7 * generate asm statements containing #defines,
   8 * compile this file to assembler, and then extract the
   9 * #defines from the assembly-language output.
  10 */
  11
  12#include <linux/stddef.h>
  13#include <linux/sched.h>
  14#include <linux/kernel_stat.h>
  15#include <linux/ptrace.h>
  16#include <linux/hardirq.h>
  17#include <linux/kbuild.h>
  18#include <asm/irq.h>
  19#include <asm/ptrace.h>
  20
  21int main(void)
  22{
  23        /* offsets into the task struct */
  24        OFFSET(TASK_FLAGS, task_struct, flags);
  25        OFFSET(TASK_PTRACE, task_struct, ptrace);
  26        OFFSET(TASK_BLOCKED, task_struct, blocked);
  27        OFFSET(TASK_THREAD, task_struct, thread);
  28        OFFSET(TASK_THREAD_INFO, task_struct, stack);
  29        OFFSET(TASK_MM, task_struct, mm);
  30        OFFSET(TASK_ACTIVE_MM, task_struct, active_mm);
  31
  32        /* offsets into the irq_cpustat_t struct */
  33        DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t,
  34                                                 __softirq_pending));
  35
  36        /* offsets into the thread struct */
  37        OFFSET(THREAD_KSP, thread_struct, ksp);
  38        OFFSET(THREAD_USP, thread_struct, usp);
  39        OFFSET(THREAD_CCR, thread_struct, ccr);
  40
  41        /* offsets into the pt_regs struct */
  42        DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
  43        DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
  44        DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
  45        DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
  46        DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
  47        DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
  48        DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
  49        DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
  50        DEFINE(LSP,   offsetof(struct pt_regs, sp)       - sizeof(long));
  51        DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
  52        DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
  53#if defined(CONFIG_CPU_H8S)
  54        DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
  55#endif
  56        DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
  57
  58        DEFINE(PT_PTRACED, PT_PTRACED);
  59
  60        /* offsets in thread_info structure */
  61        OFFSET(TI_TASK, thread_info, task);
  62        OFFSET(TI_FLAGS, thread_info, flags);
  63        OFFSET(TI_CPU, thread_info, cpu);
  64        OFFSET(TI_PRE, thread_info, preempt_count);
  65#ifdef CONFIG_PREEMPTION
  66        DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
  67#endif
  68
  69        return 0;
  70}
  71