asm-offsets.c 7.6 KB

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