asm-offsets.c 7.9 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Generate definitions needed by assembly language modules.
  4. * This code generates raw asm output which is post-processed to extract
  5. * and format the required data.
  6. */
  7. #define ASM_OFFSETS_C
  8. #include <linux/kbuild.h>
  9. #include <linux/kvm_host.h>
  10. #include <linux/sched.h>
  11. #include <linux/purgatory.h>
  12. #include <linux/pgtable.h>
  13. #include <asm/idle.h>
  14. #include <asm/gmap.h>
  15. #include <asm/stacktrace.h>
  16. int main(void)
  17. {
  18. /* task struct offsets */
  19. OFFSET(__TASK_stack, task_struct, stack);
  20. OFFSET(__TASK_thread, task_struct, thread);
  21. OFFSET(__TASK_pid, task_struct, pid);
  22. BLANK();
  23. /* thread struct offsets */
  24. OFFSET(__THREAD_ksp, thread_struct, ksp);
  25. BLANK();
  26. /* thread info offsets */
  27. OFFSET(__TI_flags, task_struct, thread_info.flags);
  28. BLANK();
  29. /* pt_regs offsets */
  30. OFFSET(__PT_PSW, pt_regs, psw);
  31. OFFSET(__PT_GPRS, pt_regs, gprs);
  32. OFFSET(__PT_R0, pt_regs, gprs[0]);
  33. OFFSET(__PT_R1, pt_regs, gprs[1]);
  34. OFFSET(__PT_R2, pt_regs, gprs[2]);
  35. OFFSET(__PT_R3, pt_regs, gprs[3]);
  36. OFFSET(__PT_R4, pt_regs, gprs[4]);
  37. OFFSET(__PT_R5, pt_regs, gprs[5]);
  38. OFFSET(__PT_R6, pt_regs, gprs[6]);
  39. OFFSET(__PT_R7, pt_regs, gprs[7]);
  40. OFFSET(__PT_R8, pt_regs, gprs[8]);
  41. OFFSET(__PT_R9, pt_regs, gprs[9]);
  42. OFFSET(__PT_R10, pt_regs, gprs[10]);
  43. OFFSET(__PT_R11, pt_regs, gprs[11]);
  44. OFFSET(__PT_R12, pt_regs, gprs[12]);
  45. OFFSET(__PT_R13, pt_regs, gprs[13]);
  46. OFFSET(__PT_R14, pt_regs, gprs[14]);
  47. OFFSET(__PT_R15, pt_regs, gprs[15]);
  48. OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2);
  49. OFFSET(__PT_FLAGS, pt_regs, flags);
  50. OFFSET(__PT_CR1, pt_regs, cr1);
  51. OFFSET(__PT_LAST_BREAK, pt_regs, last_break);
  52. DEFINE(__PT_SIZE, sizeof(struct pt_regs));
  53. BLANK();
  54. /* stack_frame offsets */
  55. OFFSET(__SF_BACKCHAIN, stack_frame, back_chain);
  56. OFFSET(__SF_GPRS, stack_frame, gprs);
  57. OFFSET(__SF_EMPTY, stack_frame, empty[0]);
  58. OFFSET(__SF_SIE_CONTROL, stack_frame, sie_control_block);
  59. OFFSET(__SF_SIE_SAVEAREA, stack_frame, sie_savearea);
  60. OFFSET(__SF_SIE_REASON, stack_frame, sie_reason);
  61. OFFSET(__SF_SIE_FLAGS, stack_frame, sie_flags);
  62. DEFINE(STACK_FRAME_OVERHEAD, sizeof(struct stack_frame));
  63. BLANK();
  64. /* idle data offsets */
  65. OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter);
  66. OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter);
  67. OFFSET(__MT_CYCLES_ENTER, s390_idle_data, mt_cycles_enter);
  68. BLANK();
  69. /* hardware defined lowcore locations 0x000 - 0x1ff */
  70. OFFSET(__LC_EXT_PARAMS, lowcore, ext_params);
  71. OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr);
  72. OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code);
  73. OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc);
  74. OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_code);
  75. OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code);
  76. OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num);
  77. OFFSET(__LC_PER_CODE, lowcore, per_code);
  78. OFFSET(__LC_PER_ATMID, lowcore, per_atmid);
  79. OFFSET(__LC_PER_ADDRESS, lowcore, per_address);
  80. OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id);
  81. OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id);
  82. OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id);
  83. OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id);
  84. OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code);
  85. OFFSET(__LC_MON_CODE, lowcore, monitor_code);
  86. OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id);
  87. OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr);
  88. OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm);
  89. OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word);
  90. OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code);
  91. OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
  92. OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
  93. OFFSET(__LC_PGM_LAST_BREAK, lowcore, pgm_last_break);
  94. OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe);
  95. OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe);
  96. OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
  97. OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw);
  98. OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw);
  99. OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw);
  100. OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw);
  101. OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw);
  102. OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw);
  103. OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw);
  104. OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw);
  105. OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw);
  106. OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw);
  107. OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw);
  108. /* software defined lowcore locations 0x200 - 0xdff*/
  109. OFFSET(__LC_SAVE_AREA_SYNC, lowcore, save_area_sync);
  110. OFFSET(__LC_SAVE_AREA_ASYNC, lowcore, save_area_async);
  111. OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart);
  112. OFFSET(__LC_CPU_FLAGS, lowcore, cpu_flags);
  113. OFFSET(__LC_RETURN_PSW, lowcore, return_psw);
  114. OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw);
  115. OFFSET(__LC_SYS_ENTER_TIMER, lowcore, sys_enter_timer);
  116. OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer);
  117. OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer);
  118. OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer);
  119. OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock);
  120. OFFSET(__LC_INT_CLOCK, lowcore, int_clock);
  121. OFFSET(__LC_MCCK_CLOCK, lowcore, mcck_clock);
  122. OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock);
  123. OFFSET(__LC_CURRENT, lowcore, current_task);
  124. OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack);
  125. OFFSET(__LC_ASYNC_STACK, lowcore, async_stack);
  126. OFFSET(__LC_NODAT_STACK, lowcore, nodat_stack);
  127. OFFSET(__LC_RESTART_STACK, lowcore, restart_stack);
  128. OFFSET(__LC_MCCK_STACK, lowcore, mcck_stack);
  129. OFFSET(__LC_RESTART_FN, lowcore, restart_fn);
  130. OFFSET(__LC_RESTART_DATA, lowcore, restart_data);
  131. OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source);
  132. OFFSET(__LC_RESTART_FLAGS, lowcore, restart_flags);
  133. OFFSET(__LC_KERNEL_ASCE, lowcore, kernel_asce);
  134. OFFSET(__LC_USER_ASCE, lowcore, user_asce);
  135. OFFSET(__LC_LPP, lowcore, lpp);
  136. OFFSET(__LC_CURRENT_PID, lowcore, current_pid);
  137. OFFSET(__LC_GMAP, lowcore, gmap);
  138. OFFSET(__LC_LAST_BREAK, lowcore, last_break);
  139. /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */
  140. OFFSET(__LC_DUMP_REIPL, lowcore, ipib);
  141. OFFSET(__LC_VMCORE_INFO, lowcore, vmcore_info);
  142. OFFSET(__LC_OS_INFO, lowcore, os_info);
  143. /* hardware defined lowcore locations 0x1000 - 0x18ff */
  144. OFFSET(__LC_MCESAD, lowcore, mcesad);
  145. OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2);
  146. OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area);
  147. OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area);
  148. OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area);
  149. OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area);
  150. OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area);
  151. OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area);
  152. OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area);
  153. OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area);
  154. OFFSET(__LC_LAST_BREAK_SAVE_AREA, lowcore, last_break_save_area);
  155. OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area);
  156. OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area);
  157. OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb);
  158. BLANK();
  159. /* gmap/sie offsets */
  160. OFFSET(__GMAP_ASCE, gmap, asce);
  161. OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c);
  162. OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20);
  163. /* kexec_sha_region */
  164. OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start);
  165. OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len);
  166. DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region));
  167. /* sizeof kernel parameter area */
  168. DEFINE(__PARMAREA_SIZE, sizeof(struct parmarea));
  169. /* kernel parameter area offsets */
  170. DEFINE(IPL_DEVICE, PARMAREA + offsetof(struct parmarea, ipl_device));
  171. DEFINE(INITRD_START, PARMAREA + offsetof(struct parmarea, initrd_start));
  172. DEFINE(INITRD_SIZE, PARMAREA + offsetof(struct parmarea, initrd_size));
  173. DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base));
  174. DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size));
  175. DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line));
  176. DEFINE(MAX_COMMAND_LINE_SIZE, PARMAREA + offsetof(struct parmarea, max_command_line_size));
  177. return 0;
  178. }