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#define COMPILE_OFFSETS
 15
 16#include <asm/processor.h>
 17#include <asm/coprocessor.h>
 18
 19#include <linux/types.h>
 20#include <linux/stddef.h>
 21#include <linux/thread_info.h>
 22#include <linux/ptrace.h>
 23#include <linux/mm.h>
 24#include <linux/kbuild.h>
 25#include <linux/suspend.h>
 26
 27#include <asm/ptrace.h>
 28#include <asm/traps.h>
 29#include <linux/uaccess.h>
 30
 31int main(void)
 32{
 33	/* struct pt_regs */
 34	DEFINE(PT_PC, offsetof (struct pt_regs, pc));
 35	DEFINE(PT_PS, offsetof (struct pt_regs, ps));
 36	DEFINE(PT_DEPC, offsetof (struct pt_regs, depc));
 37	DEFINE(PT_EXCCAUSE, offsetof (struct pt_regs, exccause));
 38	DEFINE(PT_EXCVADDR, offsetof (struct pt_regs, excvaddr));
 39	DEFINE(PT_DEBUGCAUSE, offsetof (struct pt_regs, debugcause));
 40	DEFINE(PT_WMASK, offsetof (struct pt_regs, wmask));
 41	DEFINE(PT_LBEG, offsetof (struct pt_regs, lbeg));
 42	DEFINE(PT_LEND, offsetof (struct pt_regs, lend));
 43	DEFINE(PT_LCOUNT, offsetof (struct pt_regs, lcount));
 44	DEFINE(PT_SAR, offsetof (struct pt_regs, sar));
 45	DEFINE(PT_ICOUNTLEVEL, offsetof (struct pt_regs, icountlevel));
 46	DEFINE(PT_SYSCALL, offsetof (struct pt_regs, syscall));
 47	DEFINE(PT_SCOMPARE1, offsetof(struct pt_regs, scompare1));
 48	DEFINE(PT_THREADPTR, offsetof(struct pt_regs, threadptr));
 49	DEFINE(PT_AREG, offsetof (struct pt_regs, areg[0]));
 50	DEFINE(PT_AREG0, offsetof (struct pt_regs, areg[0]));
 51	DEFINE(PT_AREG1, offsetof (struct pt_regs, areg[1]));
 52	DEFINE(PT_AREG2, offsetof (struct pt_regs, areg[2]));
 53	DEFINE(PT_AREG3, offsetof (struct pt_regs, areg[3]));
 54	DEFINE(PT_AREG4, offsetof (struct pt_regs, areg[4]));
 55	DEFINE(PT_AREG5, offsetof (struct pt_regs, areg[5]));
 56	DEFINE(PT_AREG6, offsetof (struct pt_regs, areg[6]));
 57	DEFINE(PT_AREG7, offsetof (struct pt_regs, areg[7]));
 58	DEFINE(PT_AREG8, offsetof (struct pt_regs, areg[8]));
 59	DEFINE(PT_AREG9, offsetof (struct pt_regs, areg[9]));
 60	DEFINE(PT_AREG10, offsetof (struct pt_regs, areg[10]));
 61	DEFINE(PT_AREG11, offsetof (struct pt_regs, areg[11]));
 62	DEFINE(PT_AREG12, offsetof (struct pt_regs, areg[12]));
 63	DEFINE(PT_AREG13, offsetof (struct pt_regs, areg[13]));
 64	DEFINE(PT_AREG14, offsetof (struct pt_regs, areg[14]));
 65	DEFINE(PT_AREG15, offsetof (struct pt_regs, areg[15]));
 66	DEFINE(PT_WINDOWBASE, offsetof (struct pt_regs, windowbase));
 67	DEFINE(PT_WINDOWSTART, offsetof(struct pt_regs, windowstart));
 68	DEFINE(PT_KERNEL_SIZE, offsetof(struct pt_regs, areg[16]));
 69	DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS]));
 70	DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS]));
 71	DEFINE(PT_XTREGS_OPT, offsetof(struct pt_regs, xtregs_opt));
 72	DEFINE(XTREGS_OPT_SIZE, sizeof(xtregs_opt_t));
 73
 74	/* struct task_struct */
 75	DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace));
 76	DEFINE(TASK_MM, offsetof (struct task_struct, mm));
 77	DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
 78	DEFINE(TASK_PID, offsetof (struct task_struct, pid));
 79	DEFINE(TASK_THREAD, offsetof (struct task_struct, thread));
 80	DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
 81#ifdef CONFIG_STACKPROTECTOR
 82	DEFINE(TASK_STACK_CANARY, offsetof(struct task_struct, stack_canary));
 83#endif
 84	DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
 85
 86	/* offsets in thread_info struct */
 87	OFFSET(TI_TASK, thread_info, task);
 88	OFFSET(TI_FLAGS, thread_info, flags);
 89	OFFSET(TI_STSTUS, thread_info, status);
 90	OFFSET(TI_CPU, thread_info, cpu);
 91	OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
 92#ifdef CONFIG_USER_ABI_CALL0_PROBE
 93	OFFSET(TI_PS_WOE_FIX_ADDR, thread_info, ps_woe_fix_addr);
 94#endif
 95
 96	/* struct thread_info (offset from start_struct) */
 97	DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
 98	DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
 99#if XCHAL_HAVE_EXCLUSIVE
100	DEFINE(THREAD_ATOMCTL8, offsetof (struct thread_info, atomctl8));
101#endif
102	DEFINE(THREAD_CPENABLE, offsetof(struct thread_info, cpenable));
103	DEFINE(THREAD_CPU, offsetof(struct thread_info, cpu));
104	DEFINE(THREAD_CP_OWNER_CPU, offsetof(struct thread_info, cp_owner_cpu));
105#if XTENSA_HAVE_COPROCESSORS
106	DEFINE(THREAD_XTREGS_CP0, offsetof(struct thread_info, xtregs_cp.cp0));
107	DEFINE(THREAD_XTREGS_CP1, offsetof(struct thread_info, xtregs_cp.cp1));
108	DEFINE(THREAD_XTREGS_CP2, offsetof(struct thread_info, xtregs_cp.cp2));
109	DEFINE(THREAD_XTREGS_CP3, offsetof(struct thread_info, xtregs_cp.cp3));
110	DEFINE(THREAD_XTREGS_CP4, offsetof(struct thread_info, xtregs_cp.cp4));
111	DEFINE(THREAD_XTREGS_CP5, offsetof(struct thread_info, xtregs_cp.cp5));
112	DEFINE(THREAD_XTREGS_CP6, offsetof(struct thread_info, xtregs_cp.cp6));
113	DEFINE(THREAD_XTREGS_CP7, offsetof(struct thread_info, xtregs_cp.cp7));
114#endif
115	DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
116	DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
117
118	/* struct mm_struct */
119	DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users));
120	DEFINE(MM_PGD, offsetof (struct mm_struct, pgd));
121	DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
122
123	/* struct page */
124	DEFINE(PAGE_FLAGS, offsetof(struct page, flags));
125
126	/* constants */
127	DEFINE(_CLONE_VM, CLONE_VM);
128	DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
129	DEFINE(PG_ARCH_1, PG_arch_1);
130
131	/* struct debug_table */
132	DEFINE(DT_DEBUG_EXCEPTION,
133	       offsetof(struct debug_table, debug_exception));
134	DEFINE(DT_DEBUG_SAVE, offsetof(struct debug_table, debug_save));
135#ifdef CONFIG_HAVE_HW_BREAKPOINT
136	DEFINE(DT_DBREAKC_SAVE, offsetof(struct debug_table, dbreakc_save));
137	DEFINE(DT_ICOUNT_SAVE, offsetof(struct debug_table, icount_save));
138	DEFINE(DT_ICOUNT_LEVEL_SAVE,
139	       offsetof(struct debug_table, icount_level_save));
140#endif
141
142	/* struct exc_table */
143	DEFINE(EXC_TABLE_KSTK, offsetof(struct exc_table, kstk));
144	DEFINE(EXC_TABLE_DOUBLE_SAVE, offsetof(struct exc_table, double_save));
145	DEFINE(EXC_TABLE_FIXUP, offsetof(struct exc_table, fixup));
146	DEFINE(EXC_TABLE_PARAM, offsetof(struct exc_table, fixup_param));
147#if XTENSA_HAVE_COPROCESSORS
148	DEFINE(EXC_TABLE_COPROCESSOR_OWNER,
149	       offsetof(struct exc_table, coprocessor_owner));
150#endif
151	DEFINE(EXC_TABLE_FAST_USER,
152	       offsetof(struct exc_table, fast_user_handler));
153	DEFINE(EXC_TABLE_FAST_KERNEL,
154	       offsetof(struct exc_table, fast_kernel_handler));
155	DEFINE(EXC_TABLE_DEFAULT, offsetof(struct exc_table, default_handler));
156
157#ifdef CONFIG_HIBERNATION
158	DEFINE(PBE_ADDRESS, offsetof(struct pbe, address));
159	DEFINE(PBE_ORIG_ADDRESS, offsetof(struct pbe, orig_address));
160	DEFINE(PBE_NEXT, offsetof(struct pbe, next));
161	DEFINE(PBE_SIZE, sizeof(struct pbe));
162#endif
163
164	return 0;
165}