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
main(void)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 XCHAL_HAVE_EXCLUSIVE
97 DEFINE(THREAD_ATOMCTL8, offsetof (struct thread_info, atomctl8));
98 #endif
99 #if XTENSA_HAVE_COPROCESSORS
100 DEFINE(THREAD_XTREGS_CP0, offsetof(struct thread_info, xtregs_cp.cp0));
101 DEFINE(THREAD_XTREGS_CP1, offsetof(struct thread_info, xtregs_cp.cp1));
102 DEFINE(THREAD_XTREGS_CP2, offsetof(struct thread_info, xtregs_cp.cp2));
103 DEFINE(THREAD_XTREGS_CP3, offsetof(struct thread_info, xtregs_cp.cp3));
104 DEFINE(THREAD_XTREGS_CP4, offsetof(struct thread_info, xtregs_cp.cp4));
105 DEFINE(THREAD_XTREGS_CP5, offsetof(struct thread_info, xtregs_cp.cp5));
106 DEFINE(THREAD_XTREGS_CP6, offsetof(struct thread_info, xtregs_cp.cp6));
107 DEFINE(THREAD_XTREGS_CP7, offsetof(struct thread_info, xtregs_cp.cp7));
108 #endif
109 DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
110 DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
111 DEFINE(THREAD_CURRENT_DS, offsetof (struct task_struct, \
112 thread.current_ds));
113
114 /* struct mm_struct */
115 DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users));
116 DEFINE(MM_PGD, offsetof (struct mm_struct, pgd));
117 DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
118
119 /* struct page */
120 DEFINE(PAGE_FLAGS, offsetof(struct page, flags));
121
122 /* constants */
123 DEFINE(_CLONE_VM, CLONE_VM);
124 DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
125 DEFINE(PG_ARCH_1, PG_arch_1);
126
127 /* struct debug_table */
128 DEFINE(DT_DEBUG_EXCEPTION,
129 offsetof(struct debug_table, debug_exception));
130 DEFINE(DT_DEBUG_SAVE, offsetof(struct debug_table, debug_save));
131 #ifdef CONFIG_HAVE_HW_BREAKPOINT
132 DEFINE(DT_DBREAKC_SAVE, offsetof(struct debug_table, dbreakc_save));
133 DEFINE(DT_ICOUNT_SAVE, offsetof(struct debug_table, icount_save));
134 DEFINE(DT_ICOUNT_LEVEL_SAVE,
135 offsetof(struct debug_table, icount_level_save));
136 #endif
137
138 /* struct exc_table */
139 DEFINE(EXC_TABLE_KSTK, offsetof(struct exc_table, kstk));
140 DEFINE(EXC_TABLE_DOUBLE_SAVE, offsetof(struct exc_table, double_save));
141 DEFINE(EXC_TABLE_FIXUP, offsetof(struct exc_table, fixup));
142 DEFINE(EXC_TABLE_PARAM, offsetof(struct exc_table, fixup_param));
143 DEFINE(EXC_TABLE_FAST_USER,
144 offsetof(struct exc_table, fast_user_handler));
145 DEFINE(EXC_TABLE_FAST_KERNEL,
146 offsetof(struct exc_table, fast_kernel_handler));
147 DEFINE(EXC_TABLE_DEFAULT, offsetof(struct exc_table, default_handler));
148
149 return 0;
150 }
151
