LXR linux/arch/m68knommu/kernel/asm-offsets.c

   1/*
   2 * This program is used to generate definitions needed by
   3 * assembly language modules.
   4 *
   5 * We use the technique used in the OSF Mach kernel code:
   6 * generate asm statements containing #defines,
   7 * compile this file to assembler, and then extract the
   8 * #defines from the assembly-language output.
   9 */
  10
  11#include <linux/stddef.h>
  12#include <linux/sched.h>
  13#include <linux/kernel_stat.h>
  14#include <linux/ptrace.h>
  15#include <linux/hardirq.h>
  16#include <linux/kbuild.h>
  17#include <asm/bootinfo.h>
  18#include <asm/irq.h>
  19#include <asm/thread_info.h>
  20
  21int main(void)
  22{
  23        /* offsets into the task struct */
  24        DEFINE(TASK_STATE, offsetof(struct task_struct, state));
  25        DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
  26        DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
  27        DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
  28        DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
  29        DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
  30        DEFINE(TASK_MM, offsetof(struct task_struct, mm));
  31        DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
  32
  33        /* offsets into the irq_cpustat_t struct */
  34        DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
  35
  36        /* offsets into the thread struct */
  37        DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
  38        DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
  39        DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
  40        DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
  41        DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
  42        DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
  43        DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
  44        DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
  45        DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
  46
  47        /* offsets into the pt_regs */
  48        DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
  49        DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
  50        DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
  51        DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
  52        DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
  53        DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
  54        DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
  55        DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
  56        DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
  57        DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
  58        DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
  59        DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
  60
  61#ifdef CONFIG_COLDFIRE
  62        /* bitfields are a bit difficult */
  63        DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
  64#else
  65        /* bitfields are a bit difficult */
  66        DEFINE(PT_OFF_VECTOR, offsetof(struct pt_regs, pc) + 4);
  67#endif
  68
  69        /* signal defines */
  70        DEFINE(SIGSEGV, SIGSEGV);
  71        DEFINE(SEGV_MAPERR, SEGV_MAPERR);
  72        DEFINE(SIGTRAP, SIGTRAP);
  73        DEFINE(TRAP_TRACE, TRAP_TRACE);
  74
  75        DEFINE(PT_PTRACED, PT_PTRACED);
  76
  77        DEFINE(THREAD_SIZE, THREAD_SIZE);
  78
  79        /* Offsets in thread_info structure */
  80        DEFINE(TI_TASK, offsetof(struct thread_info, task));
  81        DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
  82        DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
  83        DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count));
  84        DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
  85
  86        return 0;
  87}
  88