arch/xtensa/kernel/asm-offsets.c

   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 #include <linux/suspend.h>
  25
  26 #include <asm/ptrace.h>
  27 #include <asm/traps.h>
  28 #include <linux/uaccess.h>
  29
  30 int main(void)
  31 {
  32         /* struct pt_regs */
  33         DEFINE(PT_PC, offsetof (struct pt_regs, pc));
  34         DEFINE(PT_PS, offsetof (struct pt_regs, ps));
  35         DEFINE(PT_DEPC, offsetof (struct pt_regs, depc));
  36         DEFINE(PT_EXCCAUSE, offsetof (struct pt_regs, exccause));
  37         DEFINE(PT_EXCVADDR, offsetof (struct pt_regs, excvaddr));
  38         DEFINE(PT_DEBUGCAUSE, offsetof (struct pt_regs, debugcause));
  39         DEFINE(PT_WMASK, offsetof (struct pt_regs, wmask));
  40         DEFINE(PT_LBEG, offsetof (struct pt_regs, lbeg));
  41         DEFINE(PT_LEND, offsetof (struct pt_regs, lend));
  42         DEFINE(PT_LCOUNT, offsetof (struct pt_regs, lcount));
  43         DEFINE(PT_SAR, offsetof (struct pt_regs, sar));
  44         DEFINE(PT_ICOUNTLEVEL, offsetof (struct pt_regs, icountlevel));
  45         DEFINE(PT_SYSCALL, offsetof (struct pt_regs, syscall));
  46         DEFINE(PT_SCOMPARE1, offsetof(struct pt_regs, scompare1));
  47         DEFINE(PT_THREADPTR, offsetof(struct pt_regs, threadptr));
  48         DEFINE(PT_AREG, offsetof (struct pt_regs, areg[0]));
  49         DEFINE(PT_AREG0, offsetof (struct pt_regs, areg[0]));
  50         DEFINE(PT_AREG1, offsetof (struct pt_regs, areg[1]));
  51         DEFINE(PT_AREG2, offsetof (struct pt_regs, areg[2]));
  52         DEFINE(PT_AREG3, offsetof (struct pt_regs, areg[3]));
  53         DEFINE(PT_AREG4, offsetof (struct pt_regs, areg[4]));
  54         DEFINE(PT_AREG5, offsetof (struct pt_regs, areg[5]));
  55         DEFINE(PT_AREG6, offsetof (struct pt_regs, areg[6]));
  56         DEFINE(PT_AREG7, offsetof (struct pt_regs, areg[7]));
  57         DEFINE(PT_AREG8, offsetof (struct pt_regs, areg[8]));
  58         DEFINE(PT_AREG9, offsetof (struct pt_regs, areg[9]));
  59         DEFINE(PT_AREG10, offsetof (struct pt_regs, areg[10]));
  60         DEFINE(PT_AREG11, offsetof (struct pt_regs, areg[11]));
  61         DEFINE(PT_AREG12, offsetof (struct pt_regs, areg[12]));
  62         DEFINE(PT_AREG13, offsetof (struct pt_regs, areg[13]));
  63         DEFINE(PT_AREG14, offsetof (struct pt_regs, areg[14]));
  64         DEFINE(PT_AREG15, offsetof (struct pt_regs, areg[15]));
  65         DEFINE(PT_WINDOWBASE, offsetof (struct pt_regs, windowbase));
  66         DEFINE(PT_WINDOWSTART, offsetof(struct pt_regs, windowstart));
  67         DEFINE(PT_KERNEL_SIZE, offsetof(struct pt_regs, areg[16]));
  68         DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS]));
  69         DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS]));
  70         DEFINE(PT_XTREGS_OPT, offsetof(struct pt_regs, xtregs_opt));
  71         DEFINE(XTREGS_OPT_SIZE, sizeof(xtregs_opt_t));
  72
  73         /* struct task_struct */
  74         DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace));
  75         DEFINE(TASK_MM, offsetof (struct task_struct, mm));
  76         DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
  77         DEFINE(TASK_PID, offsetof (struct task_struct, pid));
  78         DEFINE(TASK_THREAD, offsetof (struct task_struct, thread));
  79         DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
  80 #ifdef CONFIG_STACKPROTECTOR
  81         DEFINE(TASK_STACK_CANARY, offsetof(struct task_struct, stack_canary));
  82 #endif
  83         DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
  84
  85         /* offsets in thread_info struct */
  86         OFFSET(TI_TASK, thread_info, task);
  87         OFFSET(TI_FLAGS, thread_info, flags);
  88         OFFSET(TI_STSTUS, thread_info, status);
  89         OFFSET(TI_CPU, thread_info, cpu);
  90         OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
  91 #ifdef CONFIG_USER_ABI_CALL0_PROBE
  92         OFFSET(TI_PS_WOE_FIX_ADDR, thread_info, ps_woe_fix_addr);
  93 #endif
  94
  95         /* struct thread_info (offset from start_struct) */
  96         DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
  97         DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
  98 #if XCHAL_HAVE_EXCLUSIVE
  99         DEFINE(THREAD_ATOMCTL8, offsetof (struct thread_info, atomctl8));
 100 #endif
 101         DEFINE(THREAD_CPENABLE, offsetof(struct thread_info, cpenable));
 102         DEFINE(THREAD_CPU, offsetof(struct thread_info, cpu));
 103         DEFINE(THREAD_CP_OWNER_CPU, offsetof(struct thread_info, cp_owner_cpu));
 104 #if XTENSA_HAVE_COPROCESSORS
 105         DEFINE(THREAD_XTREGS_CP0, offsetof(struct thread_info, xtregs_cp.cp0));
 106         DEFINE(THREAD_XTREGS_CP1, offsetof(struct thread_info, xtregs_cp.cp1));
 107         DEFINE(THREAD_XTREGS_CP2, offsetof(struct thread_info, xtregs_cp.cp2));
 108         DEFINE(THREAD_XTREGS_CP3, offsetof(struct thread_info, xtregs_cp.cp3));
 109         DEFINE(THREAD_XTREGS_CP4, offsetof(struct thread_info, xtregs_cp.cp4));
 110         DEFINE(THREAD_XTREGS_CP5, offsetof(struct thread_info, xtregs_cp.cp5));
 111         DEFINE(THREAD_XTREGS_CP6, offsetof(struct thread_info, xtregs_cp.cp6));
 112         DEFINE(THREAD_XTREGS_CP7, offsetof(struct thread_info, xtregs_cp.cp7));
 113 #endif
 114         DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
 115         DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
 116
 117         /* struct mm_struct */
 118         DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users));
 119         DEFINE(MM_PGD, offsetof (struct mm_struct, pgd));
 120         DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
 121
 122         /* struct page */
 123         DEFINE(PAGE_FLAGS, offsetof(struct page, flags));
 124
 125         /* constants */
 126         DEFINE(_CLONE_VM, CLONE_VM);
 127         DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
 128         DEFINE(PG_ARCH_1, PG_arch_1);
 129
 130         /* struct debug_table */
 131         DEFINE(DT_DEBUG_EXCEPTION,
 132                offsetof(struct debug_table, debug_exception));
 133         DEFINE(DT_DEBUG_SAVE, offsetof(struct debug_table, debug_save));
 134 #ifdef CONFIG_HAVE_HW_BREAKPOINT
 135         DEFINE(DT_DBREAKC_SAVE, offsetof(struct debug_table, dbreakc_save));
 136         DEFINE(DT_ICOUNT_SAVE, offsetof(struct debug_table, icount_save));
 137         DEFINE(DT_ICOUNT_LEVEL_SAVE,
 138                offsetof(struct debug_table, icount_level_save));
 139 #endif
 140
 141         /* struct exc_table */
 142         DEFINE(EXC_TABLE_KSTK, offsetof(struct exc_table, kstk));
 143         DEFINE(EXC_TABLE_DOUBLE_SAVE, offsetof(struct exc_table, double_save));
 144         DEFINE(EXC_TABLE_FIXUP, offsetof(struct exc_table, fixup));
 145         DEFINE(EXC_TABLE_PARAM, offsetof(struct exc_table, fixup_param));
 146 #if XTENSA_HAVE_COPROCESSORS
 147         DEFINE(EXC_TABLE_COPROCESSOR_OWNER,
 148                offsetof(struct exc_table, coprocessor_owner));
 149 #endif
 150         DEFINE(EXC_TABLE_FAST_USER,
 151                offsetof(struct exc_table, fast_user_handler));
 152         DEFINE(EXC_TABLE_FAST_KERNEL,
 153                offsetof(struct exc_table, fast_kernel_handler));
 154         DEFINE(EXC_TABLE_DEFAULT, offsetof(struct exc_table, default_handler));
 155
 156 #ifdef CONFIG_HIBERNATION
 157         DEFINE(PBE_ADDRESS, offsetof(struct pbe, address));
 158         DEFINE(PBE_ORIG_ADDRESS, offsetof(struct pbe, orig_address));
 159         DEFINE(PBE_NEXT, offsetof(struct pbe, next));
 160         DEFINE(PBE_SIZE, sizeof(struct pbe));
 161 #endif
 162
 163         return 0;
 164 }