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