linux/arch/xtensa/kernel/asm-offsets.c
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   1/*
   2 * arch/xtensa/kernel/asm-offsets.c
   3 *
   4 * Generates definitions from c-type structures used by assembly sources.
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 *
  10 * Copyright (C) 2005 Tensilica Inc.
  11 *
  12 * Chris Zankel <chris@zankel.net>
  13 */
  14
  15#include <asm/processor.h>
  16#include <asm/coprocessor.h>
  17
  18#include <linux/types.h>
  19#include <linux/stddef.h>
  20#include <linux/thread_info.h>
  21#include <linux/ptrace.h>
  22#include <linux/mm.h>
  23#include <linux/kbuild.h>
  24
  25#include <asm/ptrace.h>
  26#include <asm/uaccess.h>
  27
  28int main(void)
  29{
  30        /* struct pt_regs */
  31        DEFINE(PT_PC, offsetof (struct pt_regs, pc));
  32        DEFINE(PT_PS, offsetof (struct pt_regs, ps));
  33        DEFINE(PT_DEPC, offsetof (struct pt_regs, depc));
  34        DEFINE(PT_EXCCAUSE, offsetof (struct pt_regs, exccause));
  35        DEFINE(PT_EXCVADDR, offsetof (struct pt_regs, excvaddr));
  36        DEFINE(PT_DEBUGCAUSE, offsetof (struct pt_regs, debugcause));
  37        DEFINE(PT_WMASK, offsetof (struct pt_regs, wmask));
  38        DEFINE(PT_LBEG, offsetof (struct pt_regs, lbeg));
  39        DEFINE(PT_LEND, offsetof (struct pt_regs, lend));
  40        DEFINE(PT_LCOUNT, offsetof (struct pt_regs, lcount));
  41        DEFINE(PT_SAR, offsetof (struct pt_regs, sar));
  42        DEFINE(PT_ICOUNTLEVEL, offsetof (struct pt_regs, icountlevel));
  43        DEFINE(PT_SYSCALL, offsetof (struct pt_regs, syscall));
  44        DEFINE(PT_AREG, offsetof (struct pt_regs, areg[0]));
  45        DEFINE(PT_AREG0, offsetof (struct pt_regs, areg[0]));
  46        DEFINE(PT_AREG1, offsetof (struct pt_regs, areg[1]));
  47        DEFINE(PT_AREG2, offsetof (struct pt_regs, areg[2]));
  48        DEFINE(PT_AREG3, offsetof (struct pt_regs, areg[3]));
  49        DEFINE(PT_AREG4, offsetof (struct pt_regs, areg[4]));
  50        DEFINE(PT_AREG5, offsetof (struct pt_regs, areg[5]));
  51        DEFINE(PT_AREG6, offsetof (struct pt_regs, areg[6]));
  52        DEFINE(PT_AREG7, offsetof (struct pt_regs, areg[7]));
  53        DEFINE(PT_AREG8, offsetof (struct pt_regs, areg[8]));
  54        DEFINE(PT_AREG9, offsetof (struct pt_regs, areg[9]));
  55        DEFINE(PT_AREG10, offsetof (struct pt_regs, areg[10]));
  56        DEFINE(PT_AREG11, offsetof (struct pt_regs, areg[11]));
  57        DEFINE(PT_AREG12, offsetof (struct pt_regs, areg[12]));
  58        DEFINE(PT_AREG13, offsetof (struct pt_regs, areg[13]));
  59        DEFINE(PT_AREG14, offsetof (struct pt_regs, areg[14]));
  60        DEFINE(PT_AREG15, offsetof (struct pt_regs, areg[15]));
  61        DEFINE(PT_WINDOWBASE, offsetof (struct pt_regs, windowbase));
  62        DEFINE(PT_WINDOWSTART, offsetof(struct pt_regs, windowstart));
  63        DEFINE(PT_SIZE, sizeof(struct pt_regs));
  64        DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS]));
  65        DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS]));
  66        DEFINE(PT_XTREGS_OPT, offsetof(struct pt_regs, xtregs_opt));
  67        DEFINE(XTREGS_OPT_SIZE, sizeof(xtregs_opt_t));
  68
  69        /* struct task_struct */
  70        DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace));
  71        DEFINE(TASK_MM, offsetof (struct task_struct, mm));
  72        DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
  73        DEFINE(TASK_PID, offsetof (struct task_struct, pid));
  74        DEFINE(TASK_THREAD, offsetof (struct task_struct, thread));
  75        DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
  76        DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
  77
  78        /* struct thread_info (offset from start_struct) */
  79        DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
  80        DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
  81        DEFINE(THREAD_CPENABLE, offsetof (struct thread_info, cpenable));
  82#if XTENSA_HAVE_COPROCESSORS
  83        DEFINE(THREAD_XTREGS_CP0, offsetof (struct thread_info, xtregs_cp));
  84        DEFINE(THREAD_XTREGS_CP1, offsetof (struct thread_info, xtregs_cp));
  85        DEFINE(THREAD_XTREGS_CP2, offsetof (struct thread_info, xtregs_cp));
  86        DEFINE(THREAD_XTREGS_CP3, offsetof (struct thread_info, xtregs_cp));
  87        DEFINE(THREAD_XTREGS_CP4, offsetof (struct thread_info, xtregs_cp));
  88        DEFINE(THREAD_XTREGS_CP5, offsetof (struct thread_info, xtregs_cp));
  89        DEFINE(THREAD_XTREGS_CP6, offsetof (struct thread_info, xtregs_cp));
  90        DEFINE(THREAD_XTREGS_CP7, offsetof (struct thread_info, xtregs_cp));
  91#endif
  92        DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
  93        DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
  94        DEFINE(THREAD_CURRENT_DS, offsetof (struct task_struct, thread.current_ds));
  95
  96        /* struct mm_struct */
  97        DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users));
  98        DEFINE(MM_PGD, offsetof (struct mm_struct, pgd));
  99        DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
 100
 101        /* struct page */
 102        DEFINE(PAGE_FLAGS, offsetof(struct page, flags));
 103
 104        /* constants */
 105        DEFINE(_CLONE_VM, CLONE_VM);
 106        DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
 107        DEFINE(PG_ARCH_1, PG_arch_1);
 108
 109        return 0;
 110}
 111
 112