arch/h8300/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 <asm/bootinfo.h>
  17 #include <asm/irq.h>
  18 #include <asm/ptrace.h>
  19
  20 #define DEFINE(sym, val) \
  21         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  22
  23 #define BLANK() asm volatile("\n->" : : )
  24
  25 int main(void)
  26 {
  27         /* offsets into the task struct */
  28         DEFINE(TASK_STATE, offsetof(struct task_struct, state));
  29         DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
  30         DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
  31         DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
  32         DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
  33         DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
  34         DEFINE(TASK_MM, offsetof(struct task_struct, mm));
  35         DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
  36
  37         /* offsets into the irq_cpustat_t struct */
  38         DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
  39
  40         /* offsets into the thread struct */
  41         DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
  42         DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
  43         DEFINE(THREAD_CCR, offsetof(struct thread_struct, ccr));
  44
  45         /* offsets into the pt_regs struct */
  46         DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
  47         DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
  48         DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
  49         DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
  50         DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
  51         DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
  52         DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
  53         DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
  54         DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
  55         DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
  56 #if defined(__H8300S__)
  57         DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
  58 #endif
  59         DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
  60
  61         DEFINE(PT_PTRACED, PT_PTRACED);
  62         DEFINE(PT_DTRACE, PT_DTRACE);
  63
  64         return 0;
  65 }