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asm-offsets.c
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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 <[email protected]>
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 
28 int 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 
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