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 17 #include <linux/types.h> 18 #include <linux/stddef.h> 19 #include <linux/thread_info.h> 20 #include <linux/ptrace.h> 21 #include <linux/mm.h> 22 23 #include <asm/ptrace.h> 24 #include <asm/processor.h> 25 #include <asm/uaccess.h> 26 27 #define DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val)) 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_AREG, offsetof (struct pt_regs, areg[0])); 46 DEFINE(PT_AREG0, offsetof (struct pt_regs, areg[0])); 47 DEFINE(PT_AREG1, offsetof (struct pt_regs, areg[1])); 48 DEFINE(PT_AREG2, offsetof (struct pt_regs, areg[2])); 49 DEFINE(PT_AREG3, offsetof (struct pt_regs, areg[3])); 50 DEFINE(PT_AREG4, offsetof (struct pt_regs, areg[4])); 51 DEFINE(PT_AREG5, offsetof (struct pt_regs, areg[5])); 52 DEFINE(PT_AREG6, offsetof (struct pt_regs, areg[6])); 53 DEFINE(PT_AREG7, offsetof (struct pt_regs, areg[7])); 54 DEFINE(PT_AREG8, offsetof (struct pt_regs, areg[8])); 55 DEFINE(PT_AREG9, offsetof (struct pt_regs, areg[9])); 56 DEFINE(PT_AREG10, offsetof (struct pt_regs, areg[10])); 57 DEFINE(PT_AREG11, offsetof (struct pt_regs, areg[11])); 58 DEFINE(PT_AREG12, offsetof (struct pt_regs, areg[12])); 59 DEFINE(PT_AREG13, offsetof (struct pt_regs, areg[13])); 60 DEFINE(PT_AREG14, offsetof (struct pt_regs, areg[14])); 61 DEFINE(PT_AREG15, offsetof (struct pt_regs, areg[15])); 62 DEFINE(PT_WINDOWBASE, offsetof (struct pt_regs, windowbase)); 63 DEFINE(PT_WINDOWSTART, offsetof(struct pt_regs, windowstart)); 64 DEFINE(PT_SIZE, sizeof(struct pt_regs)); 65 DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS])); 66 DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS])); 67 68 /* struct task_struct */ 69 DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace)); 70 DEFINE(TASK_MM, offsetof (struct task_struct, mm)); 71 DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm)); 72 DEFINE(TASK_PID, offsetof (struct task_struct, pid)); 73 DEFINE(TASK_THREAD, offsetof (struct task_struct, thread)); 74 DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack)); 75 DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct)); 76 77 /* struct thread_info (offset from start_struct) */ 78 DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra)); 79 DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp)); 80 DEFINE(THREAD_CP_SAVE, offsetof (struct task_struct, thread.cp_save)); 81 DEFINE(THREAD_CURRENT_DS, offsetof (struct task_struct, thread.current_ds)); 82 83 /* struct mm_struct */ 84 DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users)); 85 DEFINE(MM_PGD, offsetof (struct mm_struct, pgd)); 86 DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context)); 87 88 /* struct page */ 89 DEFINE(PAGE_FLAGS, offsetof(struct page, flags)); 90 91 /* constants */ 92 DEFINE(_CLONE_VM, CLONE_VM); 93 DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED); 94 DEFINE(PG_ARCH_1, PG_arch_1); 95 96 return 0; 97 } 98 99