arch/v850/kernel/asm-consts.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/irq.h>
  17 #include <asm/errno.h>
  18
  19 #define DEFINE(sym, val) \
  20         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  21
  22 #define BLANK() asm volatile("\n->" : : )
  23
  24 int main (void)
  25 {
  26         /* offsets into the task struct */
  27         DEFINE (TASK_STATE, offsetof (struct task_struct, state));
  28         DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags));
  29         DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace));
  30         DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked));
  31         DEFINE (TASK_THREAD, offsetof (struct task_struct, thread));
  32         DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, thread_info));
  33         DEFINE (TASK_MM, offsetof (struct task_struct, mm));
  34         DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
  35         DEFINE (TASK_PID, offsetof (struct task_struct, pid));
  36
  37         /* offsets into the kernel_stat struct */
  38         DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs));
  39
  40
  41         /* signal defines */
  42         DEFINE (SIGSEGV, SIGSEGV);
  43         DEFINE (SEGV_MAPERR, SEGV_MAPERR);
  44         DEFINE (SIGTRAP, SIGTRAP);
  45         DEFINE (SIGCHLD, SIGCHLD);
  46         DEFINE (SIGILL, SIGILL);
  47         DEFINE (TRAP_TRACE, TRAP_TRACE);
  48
  49         /* ptrace flag bits */
  50         DEFINE (PT_PTRACED, PT_PTRACED);
  51         DEFINE (PT_DTRACE, PT_DTRACE);
  52
  53         /* error values */
  54         DEFINE (ENOSYS, ENOSYS);
  55
  56         /* clone flag bits */
  57         DEFINE (CLONE_VFORK, CLONE_VFORK);
  58         DEFINE (CLONE_VM, CLONE_VM);
  59
  60         return 0;
  61 }