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_types.h>
  15 // #include <linux/mm.h>
  16 #include <linux/kbuild.h>
  17
  18 #include <asm/hibernate.h>
  19
  20 #ifdef CONFIG_SPARC32
  21 int sparc32_foo(void)
  22 {
  23         DEFINE(AOFF_thread_fork_kpsr,
  24                         offsetof(struct thread_struct, fork_kpsr));
  25         return 0;
  26 }
  27 #else
  28 int sparc64_foo(void)
  29 {
  30 #ifdef CONFIG_HIBERNATION
  31         BLANK();
  32         OFFSET(SC_REG_FP, saved_context, fp);
  33         OFFSET(SC_REG_CWP, saved_context, cwp);
  34         OFFSET(SC_REG_WSTATE, saved_context, wstate);
  35
  36         OFFSET(SC_REG_TICK, saved_context, tick);
  37         OFFSET(SC_REG_PSTATE, saved_context, pstate);
  38
  39         OFFSET(SC_REG_G4, saved_context, g4);
  40         OFFSET(SC_REG_G5, saved_context, g5);
  41         OFFSET(SC_REG_G6, saved_context, g6);
  42 #endif
  43         return 0;
  44 }
  45 #endif
  46
  47 int foo(void)
  48 {
  49         BLANK();
  50         DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread));
  51         BLANK();
  52         DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context));
  53         BLANK();
  54         DEFINE(VMA_VM_MM,    offsetof(struct vm_area_struct, vm_mm));
  55
  56         /* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */
  57         return 0;
  58 }
  59