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TOMOYO Linux Cross Reference
Linux/arch/arm/kernel/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/compiler.h>
 14 #include <linux/sched.h>
 15 #include <linux/mm.h>
 16 #include <linux/dma-mapping.h>
 17 #ifdef CONFIG_KVM_ARM_HOST
 18 #include <linux/kvm_host.h>
 19 #endif
 20 #include <asm/cacheflush.h>
 21 #include <asm/glue-df.h>
 22 #include <asm/glue-pf.h>
 23 #include <asm/mach/arch.h>
 24 #include <asm/thread_info.h>
 25 #include <asm/memory.h>
 26 #include <asm/mpu.h>
 27 #include <asm/procinfo.h>
 28 #include <asm/suspend.h>
 29 #include <asm/vdso_datapage.h>
 30 #include <asm/hardware/cache-l2x0.h>
 31 #include <linux/kbuild.h>
 32 #include "signal.h"
 33 
 34 /*
 35  * Make sure that the compiler and target are compatible.
 36  */
 37 #if defined(__APCS_26__)
 38 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
 39 #endif
 40 /*
 41  * GCC 3.0, 3.1: general bad code generation.
 42  * GCC 3.2.0: incorrect function argument offset calculation.
 43  * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
 44  *            (http://gcc.gnu.org/PR8896) and incorrect structure
 45  *            initialisation in fs/jffs2/erase.c
 46  * GCC 4.8.0-4.8.2: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
 47  *            miscompiles find_get_entry(), and can result in EXT3 and EXT4
 48  *            filesystem corruption (possibly other FS too).
 49  */
 50 #ifdef __GNUC__
 51 #if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
 52 #error Your compiler is too buggy; it is known to miscompile kernels.
 53 #error    Known good compilers: 3.3, 4.x
 54 #endif
 55 #if GCC_VERSION >= 40800 && GCC_VERSION < 40803
 56 #error Your compiler is too buggy; it is known to miscompile kernels
 57 #error and result in filesystem corruption and oopses.
 58 #endif
 59 #endif
 60 
 61 int main(void)
 62 {
 63   DEFINE(TSK_ACTIVE_MM,         offsetof(struct task_struct, active_mm));
 64 #ifdef CONFIG_CC_STACKPROTECTOR
 65   DEFINE(TSK_STACK_CANARY,      offsetof(struct task_struct, stack_canary));
 66 #endif
 67   BLANK();
 68   DEFINE(TI_FLAGS,              offsetof(struct thread_info, flags));
 69   DEFINE(TI_PREEMPT,            offsetof(struct thread_info, preempt_count));
 70   DEFINE(TI_ADDR_LIMIT,         offsetof(struct thread_info, addr_limit));
 71   DEFINE(TI_TASK,               offsetof(struct thread_info, task));
 72   DEFINE(TI_CPU,                offsetof(struct thread_info, cpu));
 73   DEFINE(TI_CPU_DOMAIN,         offsetof(struct thread_info, cpu_domain));
 74   DEFINE(TI_CPU_SAVE,           offsetof(struct thread_info, cpu_context));
 75   DEFINE(TI_USED_CP,            offsetof(struct thread_info, used_cp));
 76   DEFINE(TI_TP_VALUE,           offsetof(struct thread_info, tp_value));
 77   DEFINE(TI_FPSTATE,            offsetof(struct thread_info, fpstate));
 78 #ifdef CONFIG_VFP
 79   DEFINE(TI_VFPSTATE,           offsetof(struct thread_info, vfpstate));
 80 #ifdef CONFIG_SMP
 81   DEFINE(VFP_CPU,               offsetof(union vfp_state, hard.cpu));
 82 #endif
 83 #endif
 84 #ifdef CONFIG_ARM_THUMBEE
 85   DEFINE(TI_THUMBEE_STATE,      offsetof(struct thread_info, thumbee_state));
 86 #endif
 87 #ifdef CONFIG_IWMMXT
 88   DEFINE(TI_IWMMXT_STATE,       offsetof(struct thread_info, fpstate.iwmmxt));
 89 #endif
 90 #ifdef CONFIG_CRUNCH
 91   DEFINE(TI_CRUNCH_STATE,       offsetof(struct thread_info, crunchstate));
 92 #endif
 93   BLANK();
 94   DEFINE(S_R0,                  offsetof(struct pt_regs, ARM_r0));
 95   DEFINE(S_R1,                  offsetof(struct pt_regs, ARM_r1));
 96   DEFINE(S_R2,                  offsetof(struct pt_regs, ARM_r2));
 97   DEFINE(S_R3,                  offsetof(struct pt_regs, ARM_r3));
 98   DEFINE(S_R4,                  offsetof(struct pt_regs, ARM_r4));
 99   DEFINE(S_R5,                  offsetof(struct pt_regs, ARM_r5));
100   DEFINE(S_R6,                  offsetof(struct pt_regs, ARM_r6));
101   DEFINE(S_R7,                  offsetof(struct pt_regs, ARM_r7));
102   DEFINE(S_R8,                  offsetof(struct pt_regs, ARM_r8));
103   DEFINE(S_R9,                  offsetof(struct pt_regs, ARM_r9));
104   DEFINE(S_R10,                 offsetof(struct pt_regs, ARM_r10));
105   DEFINE(S_FP,                  offsetof(struct pt_regs, ARM_fp));
106   DEFINE(S_IP,                  offsetof(struct pt_regs, ARM_ip));
107   DEFINE(S_SP,                  offsetof(struct pt_regs, ARM_sp));
108   DEFINE(S_LR,                  offsetof(struct pt_regs, ARM_lr));
109   DEFINE(S_PC,                  offsetof(struct pt_regs, ARM_pc));
110   DEFINE(S_PSR,                 offsetof(struct pt_regs, ARM_cpsr));
111   DEFINE(S_OLD_R0,              offsetof(struct pt_regs, ARM_ORIG_r0));
112   DEFINE(PT_REGS_SIZE,          sizeof(struct pt_regs));
113   DEFINE(SVC_DACR,              offsetof(struct svc_pt_regs, dacr));
114   DEFINE(SVC_ADDR_LIMIT,        offsetof(struct svc_pt_regs, addr_limit));
115   DEFINE(SVC_REGS_SIZE,         sizeof(struct svc_pt_regs));
116   BLANK();
117   DEFINE(SIGFRAME_RC3_OFFSET,   offsetof(struct sigframe, retcode[3]));
118   DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3]));
119   BLANK();
120 #ifdef CONFIG_CACHE_L2X0
121   DEFINE(L2X0_R_PHY_BASE,       offsetof(struct l2x0_regs, phy_base));
122   DEFINE(L2X0_R_AUX_CTRL,       offsetof(struct l2x0_regs, aux_ctrl));
123   DEFINE(L2X0_R_TAG_LATENCY,    offsetof(struct l2x0_regs, tag_latency));
124   DEFINE(L2X0_R_DATA_LATENCY,   offsetof(struct l2x0_regs, data_latency));
125   DEFINE(L2X0_R_FILTER_START,   offsetof(struct l2x0_regs, filter_start));
126   DEFINE(L2X0_R_FILTER_END,     offsetof(struct l2x0_regs, filter_end));
127   DEFINE(L2X0_R_PREFETCH_CTRL,  offsetof(struct l2x0_regs, prefetch_ctrl));
128   DEFINE(L2X0_R_PWR_CTRL,       offsetof(struct l2x0_regs, pwr_ctrl));
129   BLANK();
130 #endif
131 #ifdef CONFIG_CPU_HAS_ASID
132   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
133   BLANK();
134 #endif
135   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
136   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
137   BLANK();
138   DEFINE(VM_EXEC,               VM_EXEC);
139   BLANK();
140   DEFINE(PAGE_SZ,               PAGE_SIZE);
141   BLANK();
142   DEFINE(SYS_ERROR0,            0x9f0000);
143   BLANK();
144   DEFINE(SIZEOF_MACHINE_DESC,   sizeof(struct machine_desc));
145   DEFINE(MACHINFO_TYPE,         offsetof(struct machine_desc, nr));
146   DEFINE(MACHINFO_NAME,         offsetof(struct machine_desc, name));
147   BLANK();
148   DEFINE(PROC_INFO_SZ,          sizeof(struct proc_info_list));
149   DEFINE(PROCINFO_INITFUNC,     offsetof(struct proc_info_list, __cpu_flush));
150   DEFINE(PROCINFO_MM_MMUFLAGS,  offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
151   DEFINE(PROCINFO_IO_MMUFLAGS,  offsetof(struct proc_info_list, __cpu_io_mmu_flags));
152   BLANK();
153 #ifdef MULTI_DABORT
154   DEFINE(PROCESSOR_DABT_FUNC,   offsetof(struct processor, _data_abort));
155 #endif
156 #ifdef MULTI_PABORT
157   DEFINE(PROCESSOR_PABT_FUNC,   offsetof(struct processor, _prefetch_abort));
158 #endif
159 #ifdef MULTI_CPU
160   DEFINE(CPU_SLEEP_SIZE,        offsetof(struct processor, suspend_size));
161   DEFINE(CPU_DO_SUSPEND,        offsetof(struct processor, do_suspend));
162   DEFINE(CPU_DO_RESUME,         offsetof(struct processor, do_resume));
163 #endif
164 #ifdef MULTI_CACHE
165   DEFINE(CACHE_FLUSH_KERN_ALL,  offsetof(struct cpu_cache_fns, flush_kern_all));
166 #endif
167 #ifdef CONFIG_ARM_CPU_SUSPEND
168   DEFINE(SLEEP_SAVE_SP_SZ,      sizeof(struct sleep_save_sp));
169   DEFINE(SLEEP_SAVE_SP_PHYS,    offsetof(struct sleep_save_sp, save_ptr_stash_phys));
170   DEFINE(SLEEP_SAVE_SP_VIRT,    offsetof(struct sleep_save_sp, save_ptr_stash));
171 #endif
172   BLANK();
173   DEFINE(DMA_BIDIRECTIONAL,     DMA_BIDIRECTIONAL);
174   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
175   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
176   BLANK();
177   DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER);
178   DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE);
179   BLANK();
180 #ifdef CONFIG_KVM_ARM_HOST
181   DEFINE(VCPU_GUEST_CTXT,       offsetof(struct kvm_vcpu, arch.ctxt));
182   DEFINE(VCPU_HOST_CTXT,        offsetof(struct kvm_vcpu, arch.host_cpu_context));
183   DEFINE(CPU_CTXT_VFP,          offsetof(struct kvm_cpu_context, vfp));
184   DEFINE(CPU_CTXT_GP_REGS,      offsetof(struct kvm_cpu_context, gp_regs));
185   DEFINE(GP_REGS_USR,           offsetof(struct kvm_regs, usr_regs));
186 #endif
187   BLANK();
188 #ifdef CONFIG_VDSO
189   DEFINE(VDSO_DATA_SIZE,        sizeof(union vdso_data_store));
190 #endif
191   BLANK();
192 #ifdef CONFIG_ARM_MPU
193   DEFINE(MPU_RNG_INFO_RNGS,     offsetof(struct mpu_rgn_info, rgns));
194   DEFINE(MPU_RNG_INFO_USED,     offsetof(struct mpu_rgn_info, used));
195 
196   DEFINE(MPU_RNG_SIZE,          sizeof(struct mpu_rgn));
197   DEFINE(MPU_RGN_DRBAR,         offsetof(struct mpu_rgn, drbar));
198   DEFINE(MPU_RGN_DRSR,          offsetof(struct mpu_rgn, drsr));
199   DEFINE(MPU_RGN_DRACR,         offsetof(struct mpu_rgn, dracr));
200 #endif
201   return 0; 
202 }
203 

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