Linux Kernel  3.7.1
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asm-offsets.c
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1 /*
2  * Copyright (C) 1995-2003 Russell King
3  * 2001-2002 Keith Owens
4  *
5  * Generate definitions needed by assembly language modules.
6  * This code generates raw asm output which is post-processed to extract
7  * and format the required data.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13 #include <linux/sched.h>
14 #include <linux/mm.h>
15 #include <linux/dma-mapping.h>
16 #include <asm/cacheflush.h>
17 #include <asm/glue-df.h>
18 #include <asm/glue-pf.h>
19 #include <asm/mach/arch.h>
20 #include <asm/thread_info.h>
21 #include <asm/memory.h>
22 #include <asm/procinfo.h>
24 #include <linux/kbuild.h>
25 
26 /*
27  * Make sure that the compiler and target are compatible.
28  */
29 #if defined(__APCS_26__)
30 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
31 #endif
32 /*
33  * GCC 3.0, 3.1: general bad code generation.
34  * GCC 3.2.0: incorrect function argument offset calculation.
35  * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
36  * (http://gcc.gnu.org/PR8896) and incorrect structure
37  * initialisation in fs/jffs2/erase.c
38  */
39 #if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
40 #error Your compiler is too buggy; it is known to miscompile kernels.
41 #error Known good compilers: 3.3
42 #endif
43 
44 int main(void)
45 {
46  DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
47 #ifdef CONFIG_CC_STACKPROTECTOR
48  DEFINE(TSK_STACK_CANARY, offsetof(struct task_struct, stack_canary));
49 #endif
50  BLANK();
51  DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
52  DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
53  DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
54  DEFINE(TI_TASK, offsetof(struct thread_info, task));
55  DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
56  DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
57  DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain));
58  DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context));
59  DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp));
60  DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value));
61  DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
62 #ifdef CONFIG_VFP
63  DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate));
64 #ifdef CONFIG_SMP
65  DEFINE(VFP_CPU, offsetof(union vfp_state, hard.cpu));
66 #endif
67 #endif
68 #ifdef CONFIG_ARM_THUMBEE
69  DEFINE(TI_THUMBEE_STATE, offsetof(struct thread_info, thumbee_state));
70 #endif
71 #ifdef CONFIG_IWMMXT
72  DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt));
73 #endif
74 #ifdef CONFIG_CRUNCH
75  DEFINE(TI_CRUNCH_STATE, offsetof(struct thread_info, crunchstate));
76 #endif
77  BLANK();
78  DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0));
79  DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1));
80  DEFINE(S_R2, offsetof(struct pt_regs, ARM_r2));
81  DEFINE(S_R3, offsetof(struct pt_regs, ARM_r3));
82  DEFINE(S_R4, offsetof(struct pt_regs, ARM_r4));
83  DEFINE(S_R5, offsetof(struct pt_regs, ARM_r5));
84  DEFINE(S_R6, offsetof(struct pt_regs, ARM_r6));
85  DEFINE(S_R7, offsetof(struct pt_regs, ARM_r7));
86  DEFINE(S_R8, offsetof(struct pt_regs, ARM_r8));
87  DEFINE(S_R9, offsetof(struct pt_regs, ARM_r9));
88  DEFINE(S_R10, offsetof(struct pt_regs, ARM_r10));
89  DEFINE(S_FP, offsetof(struct pt_regs, ARM_fp));
90  DEFINE(S_IP, offsetof(struct pt_regs, ARM_ip));
91  DEFINE(S_SP, offsetof(struct pt_regs, ARM_sp));
92  DEFINE(S_LR, offsetof(struct pt_regs, ARM_lr));
93  DEFINE(S_PC, offsetof(struct pt_regs, ARM_pc));
94  DEFINE(S_PSR, offsetof(struct pt_regs, ARM_cpsr));
95  DEFINE(S_OLD_R0, offsetof(struct pt_regs, ARM_ORIG_r0));
96  DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
97  BLANK();
98 #ifdef CONFIG_CACHE_L2X0
99  DEFINE(L2X0_R_PHY_BASE, offsetof(struct l2x0_regs, phy_base));
100  DEFINE(L2X0_R_AUX_CTRL, offsetof(struct l2x0_regs, aux_ctrl));
101  DEFINE(L2X0_R_TAG_LATENCY, offsetof(struct l2x0_regs, tag_latency));
102  DEFINE(L2X0_R_DATA_LATENCY, offsetof(struct l2x0_regs, data_latency));
103  DEFINE(L2X0_R_FILTER_START, offsetof(struct l2x0_regs, filter_start));
104  DEFINE(L2X0_R_FILTER_END, offsetof(struct l2x0_regs, filter_end));
105  DEFINE(L2X0_R_PREFETCH_CTRL, offsetof(struct l2x0_regs, prefetch_ctrl));
106  DEFINE(L2X0_R_PWR_CTRL, offsetof(struct l2x0_regs, pwr_ctrl));
107  BLANK();
108 #endif
109 #ifdef CONFIG_CPU_HAS_ASID
110  DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id));
111  BLANK();
112 #endif
113  DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
114  DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
115  BLANK();
116  DEFINE(VM_EXEC, VM_EXEC);
117  BLANK();
118  DEFINE(PAGE_SZ, PAGE_SIZE);
119  BLANK();
120  DEFINE(SYS_ERROR0, 0x9f0000);
121  BLANK();
122  DEFINE(SIZEOF_MACHINE_DESC, sizeof(struct machine_desc));
123  DEFINE(MACHINFO_TYPE, offsetof(struct machine_desc, nr));
124  DEFINE(MACHINFO_NAME, offsetof(struct machine_desc, name));
125  BLANK();
126  DEFINE(PROC_INFO_SZ, sizeof(struct proc_info_list));
127  DEFINE(PROCINFO_INITFUNC, offsetof(struct proc_info_list, __cpu_flush));
128  DEFINE(PROCINFO_MM_MMUFLAGS, offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
129  DEFINE(PROCINFO_IO_MMUFLAGS, offsetof(struct proc_info_list, __cpu_io_mmu_flags));
130  BLANK();
131 #ifdef MULTI_DABORT
132  DEFINE(PROCESSOR_DABT_FUNC, offsetof(struct processor, _data_abort));
133 #endif
134 #ifdef MULTI_PABORT
135  DEFINE(PROCESSOR_PABT_FUNC, offsetof(struct processor, _prefetch_abort));
136 #endif
137 #ifdef MULTI_CPU
138  DEFINE(CPU_SLEEP_SIZE, offsetof(struct processor, suspend_size));
139  DEFINE(CPU_DO_SUSPEND, offsetof(struct processor, do_suspend));
140  DEFINE(CPU_DO_RESUME, offsetof(struct processor, do_resume));
141 #endif
142 #ifdef MULTI_CACHE
143  DEFINE(CACHE_FLUSH_KERN_ALL, offsetof(struct cpu_cache_fns, flush_kern_all));
144 #endif
145  BLANK();
149  return 0;
150 }