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