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
  21 int 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 }