arch/sparc/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  * On sparc, thread_info data is static and TI_XXX offsets are computed by hand.
  11  */
  12
  13 #include <linux/sched.h>
  14 // #include <linux/mm.h>
  15 #include <linux/kbuild.h>
  16
  17 #include <asm/hibernate.h>
  18
  19 #ifdef CONFIG_SPARC32
  20 int sparc32_foo(void)
  21 {
  22         DEFINE(AOFF_thread_fork_kpsr,
  23                         offsetof(struct thread_struct, fork_kpsr));
  24         return 0;
  25 }
  26 #else
  27 int sparc64_foo(void)
  28 {
  29 #ifdef CONFIG_HIBERNATION
  30         BLANK();
  31         OFFSET(SC_REG_FP, saved_context, fp);
  32         OFFSET(SC_REG_CWP, saved_context, cwp);
  33         OFFSET(SC_REG_WSTATE, saved_context, wstate);
  34
  35         OFFSET(SC_REG_TICK, saved_context, tick);
  36         OFFSET(SC_REG_PSTATE, saved_context, pstate);
  37
  38         OFFSET(SC_REG_G4, saved_context, g4);
  39         OFFSET(SC_REG_G5, saved_context, g5);
  40         OFFSET(SC_REG_G6, saved_context, g6);
  41 #endif
  42         return 0;
  43 }
  44 #endif
  45
  46 int foo(void)
  47 {
  48         BLANK();
  49         DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread));
  50         BLANK();
  51         DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context));
  52         BLANK();
  53         DEFINE(VMA_VM_MM,    offsetof(struct vm_area_struct, vm_mm));
  54
  55         /* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */
  56         return 0;
  57 }
  58