1 /* 2 * Generate definitions needed by assembly language modules. 3 * This code generates raw asm output which is post-processed to extract 4 * and format the required data. 5 */ 6 7 #define ASM_OFFSETS_C 8 9 #include <linux/kbuild.h> 10 #include <linux/kvm_host.h> 11 #include <linux/sched.h> 12 #include <asm/idle.h> 13 #include <asm/vdso.h> 14 #include <asm/pgtable.h> 15 16 /* 17 * Make sure that the compiler is new enough. We want a compiler that 18 * is known to work with the "Q" assembler constraint. 19 */ 20 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3) 21 #error Your compiler is too old; please use version 4.3 or newer 22 #endif 23 24 int main(void) 25 { 26 /* task struct offsets */ 27 OFFSET(__TASK_thread_info, task_struct, stack); 28 OFFSET(__TASK_thread, task_struct, thread); 29 OFFSET(__TASK_pid, task_struct, pid); 30 BLANK(); 31 /* thread struct offsets */ 32 OFFSET(__THREAD_ksp, thread_struct, ksp); 33 OFFSET(__THREAD_FPU_fpc, thread_struct, fpu.fpc); 34 OFFSET(__THREAD_FPU_regs, thread_struct, fpu.regs); 35 OFFSET(__THREAD_per_cause, thread_struct, per_event.cause); 36 OFFSET(__THREAD_per_address, thread_struct, per_event.address); 37 OFFSET(__THREAD_per_paid, thread_struct, per_event.paid); 38 OFFSET(__THREAD_trap_tdb, thread_struct, trap_tdb); 39 BLANK(); 40 /* thread info offsets */ 41 OFFSET(__TI_task, thread_info, task); 42 OFFSET(__TI_flags, thread_info, flags); 43 OFFSET(__TI_sysc_table, thread_info, sys_call_table); 44 OFFSET(__TI_cpu, thread_info, cpu); 45 OFFSET(__TI_precount, thread_info, preempt_count); 46 OFFSET(__TI_user_timer, thread_info, user_timer); 47 OFFSET(__TI_system_timer, thread_info, system_timer); 48 OFFSET(__TI_last_break, thread_info, last_break); 49 BLANK(); 50 /* pt_regs offsets */ 51 OFFSET(__PT_ARGS, pt_regs, args); 52 OFFSET(__PT_PSW, pt_regs, psw); 53 OFFSET(__PT_GPRS, pt_regs, gprs); 54 OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2); 55 OFFSET(__PT_INT_CODE, pt_regs, int_code); 56 OFFSET(__PT_INT_PARM, pt_regs, int_parm); 57 OFFSET(__PT_INT_PARM_LONG, pt_regs, int_parm_long); 58 OFFSET(__PT_FLAGS, pt_regs, flags); 59 DEFINE(__PT_SIZE, sizeof(struct pt_regs)); 60 BLANK(); 61 /* stack_frame offsets */ 62 OFFSET(__SF_BACKCHAIN, stack_frame, back_chain); 63 OFFSET(__SF_GPRS, stack_frame, gprs); 64 OFFSET(__SF_EMPTY, stack_frame, empty1); 65 BLANK(); 66 /* timeval/timezone offsets for use by vdso */ 67 OFFSET(__VDSO_UPD_COUNT, vdso_data, tb_update_count); 68 OFFSET(__VDSO_XTIME_STAMP, vdso_data, xtime_tod_stamp); 69 OFFSET(__VDSO_XTIME_SEC, vdso_data, xtime_clock_sec); 70 OFFSET(__VDSO_XTIME_NSEC, vdso_data, xtime_clock_nsec); 71 OFFSET(__VDSO_XTIME_CRS_SEC, vdso_data, xtime_coarse_sec); 72 OFFSET(__VDSO_XTIME_CRS_NSEC, vdso_data, xtime_coarse_nsec); 73 OFFSET(__VDSO_WTOM_SEC, vdso_data, wtom_clock_sec); 74 OFFSET(__VDSO_WTOM_NSEC, vdso_data, wtom_clock_nsec); 75 OFFSET(__VDSO_WTOM_CRS_SEC, vdso_data, wtom_coarse_sec); 76 OFFSET(__VDSO_WTOM_CRS_NSEC, vdso_data, wtom_coarse_nsec); 77 OFFSET(__VDSO_TIMEZONE, vdso_data, tz_minuteswest); 78 OFFSET(__VDSO_ECTG_OK, vdso_data, ectg_available); 79 OFFSET(__VDSO_TK_MULT, vdso_data, tk_mult); 80 OFFSET(__VDSO_TK_SHIFT, vdso_data, tk_shift); 81 OFFSET(__VDSO_ECTG_BASE, vdso_per_cpu_data, ectg_timer_base); 82 OFFSET(__VDSO_ECTG_USER, vdso_per_cpu_data, ectg_user_time); 83 BLANK(); 84 /* constants used by the vdso */ 85 DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME); 86 DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC); 87 DEFINE(__CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE); 88 DEFINE(__CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC_COARSE); 89 DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID); 90 DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); 91 DEFINE(__CLOCK_COARSE_RES, LOW_RES_NSEC); 92 BLANK(); 93 /* idle data offsets */ 94 OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter); 95 OFFSET(__CLOCK_IDLE_EXIT, s390_idle_data, clock_idle_exit); 96 OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter); 97 OFFSET(__TIMER_IDLE_EXIT, s390_idle_data, timer_idle_exit); 98 BLANK(); 99 /* hardware defined lowcore locations 0x000 - 0x1ff */ 100 OFFSET(__LC_EXT_PARAMS, _lowcore, ext_params); 101 OFFSET(__LC_EXT_CPU_ADDR, _lowcore, ext_cpu_addr); 102 OFFSET(__LC_EXT_INT_CODE, _lowcore, ext_int_code); 103 OFFSET(__LC_SVC_ILC, _lowcore, svc_ilc); 104 OFFSET(__LC_SVC_INT_CODE, _lowcore, svc_code); 105 OFFSET(__LC_PGM_ILC, _lowcore, pgm_ilc); 106 OFFSET(__LC_PGM_INT_CODE, _lowcore, pgm_code); 107 OFFSET(__LC_DATA_EXC_CODE, _lowcore, data_exc_code); 108 OFFSET(__LC_MON_CLASS_NR, _lowcore, mon_class_num); 109 OFFSET(__LC_PER_CODE, _lowcore, per_code); 110 OFFSET(__LC_PER_ATMID, _lowcore, per_atmid); 111 OFFSET(__LC_PER_ADDRESS, _lowcore, per_address); 112 OFFSET(__LC_EXC_ACCESS_ID, _lowcore, exc_access_id); 113 OFFSET(__LC_PER_ACCESS_ID, _lowcore, per_access_id); 114 OFFSET(__LC_OP_ACCESS_ID, _lowcore, op_access_id); 115 OFFSET(__LC_AR_MODE_ID, _lowcore, ar_mode_id); 116 OFFSET(__LC_TRANS_EXC_CODE, _lowcore, trans_exc_code); 117 OFFSET(__LC_MON_CODE, _lowcore, monitor_code); 118 OFFSET(__LC_SUBCHANNEL_ID, _lowcore, subchannel_id); 119 OFFSET(__LC_SUBCHANNEL_NR, _lowcore, subchannel_nr); 120 OFFSET(__LC_IO_INT_PARM, _lowcore, io_int_parm); 121 OFFSET(__LC_IO_INT_WORD, _lowcore, io_int_word); 122 OFFSET(__LC_STFL_FAC_LIST, _lowcore, stfl_fac_list); 123 OFFSET(__LC_MCCK_CODE, _lowcore, mcck_interruption_code); 124 OFFSET(__LC_MCCK_FAIL_STOR_ADDR, _lowcore, failing_storage_address); 125 OFFSET(__LC_LAST_BREAK, _lowcore, breaking_event_addr); 126 OFFSET(__LC_RST_OLD_PSW, _lowcore, restart_old_psw); 127 OFFSET(__LC_EXT_OLD_PSW, _lowcore, external_old_psw); 128 OFFSET(__LC_SVC_OLD_PSW, _lowcore, svc_old_psw); 129 OFFSET(__LC_PGM_OLD_PSW, _lowcore, program_old_psw); 130 OFFSET(__LC_MCK_OLD_PSW, _lowcore, mcck_old_psw); 131 OFFSET(__LC_IO_OLD_PSW, _lowcore, io_old_psw); 132 OFFSET(__LC_RST_NEW_PSW, _lowcore, restart_psw); 133 OFFSET(__LC_EXT_NEW_PSW, _lowcore, external_new_psw); 134 OFFSET(__LC_SVC_NEW_PSW, _lowcore, svc_new_psw); 135 OFFSET(__LC_PGM_NEW_PSW, _lowcore, program_new_psw); 136 OFFSET(__LC_MCK_NEW_PSW, _lowcore, mcck_new_psw); 137 OFFSET(__LC_IO_NEW_PSW, _lowcore, io_new_psw); 138 /* software defined lowcore locations 0x200 - 0xdff*/ 139 OFFSET(__LC_SAVE_AREA_SYNC, _lowcore, save_area_sync); 140 OFFSET(__LC_SAVE_AREA_ASYNC, _lowcore, save_area_async); 141 OFFSET(__LC_SAVE_AREA_RESTART, _lowcore, save_area_restart); 142 OFFSET(__LC_CPU_FLAGS, _lowcore, cpu_flags); 143 OFFSET(__LC_RETURN_PSW, _lowcore, return_psw); 144 OFFSET(__LC_RETURN_MCCK_PSW, _lowcore, return_mcck_psw); 145 OFFSET(__LC_SYNC_ENTER_TIMER, _lowcore, sync_enter_timer); 146 OFFSET(__LC_ASYNC_ENTER_TIMER, _lowcore, async_enter_timer); 147 OFFSET(__LC_MCCK_ENTER_TIMER, _lowcore, mcck_enter_timer); 148 OFFSET(__LC_EXIT_TIMER, _lowcore, exit_timer); 149 OFFSET(__LC_USER_TIMER, _lowcore, user_timer); 150 OFFSET(__LC_SYSTEM_TIMER, _lowcore, system_timer); 151 OFFSET(__LC_STEAL_TIMER, _lowcore, steal_timer); 152 OFFSET(__LC_LAST_UPDATE_TIMER, _lowcore, last_update_timer); 153 OFFSET(__LC_LAST_UPDATE_CLOCK, _lowcore, last_update_clock); 154 OFFSET(__LC_INT_CLOCK, _lowcore, int_clock); 155 OFFSET(__LC_MCCK_CLOCK, _lowcore, mcck_clock); 156 OFFSET(__LC_CURRENT, _lowcore, current_task); 157 OFFSET(__LC_THREAD_INFO, _lowcore, thread_info); 158 OFFSET(__LC_KERNEL_STACK, _lowcore, kernel_stack); 159 OFFSET(__LC_ASYNC_STACK, _lowcore, async_stack); 160 OFFSET(__LC_PANIC_STACK, _lowcore, panic_stack); 161 OFFSET(__LC_RESTART_STACK, _lowcore, restart_stack); 162 OFFSET(__LC_RESTART_FN, _lowcore, restart_fn); 163 OFFSET(__LC_RESTART_DATA, _lowcore, restart_data); 164 OFFSET(__LC_RESTART_SOURCE, _lowcore, restart_source); 165 OFFSET(__LC_USER_ASCE, _lowcore, user_asce); 166 OFFSET(__LC_LPP, _lowcore, lpp); 167 OFFSET(__LC_CURRENT_PID, _lowcore, current_pid); 168 OFFSET(__LC_PERCPU_OFFSET, _lowcore, percpu_offset); 169 OFFSET(__LC_VDSO_PER_CPU, _lowcore, vdso_per_cpu_data); 170 OFFSET(__LC_MACHINE_FLAGS, _lowcore, machine_flags); 171 OFFSET(__LC_GMAP, _lowcore, gmap); 172 OFFSET(__LC_PASTE, _lowcore, paste); 173 /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */ 174 OFFSET(__LC_DUMP_REIPL, _lowcore, ipib); 175 /* hardware defined lowcore locations 0x1000 - 0x18ff */ 176 OFFSET(__LC_VX_SAVE_AREA_ADDR, _lowcore, vector_save_area_addr); 177 OFFSET(__LC_EXT_PARAMS2, _lowcore, ext_params2); 178 OFFSET(SAVE_AREA_BASE, _lowcore, floating_pt_save_area); 179 OFFSET(__LC_FPREGS_SAVE_AREA, _lowcore, floating_pt_save_area); 180 OFFSET(__LC_GPREGS_SAVE_AREA, _lowcore, gpregs_save_area); 181 OFFSET(__LC_PSW_SAVE_AREA, _lowcore, psw_save_area); 182 OFFSET(__LC_PREFIX_SAVE_AREA, _lowcore, prefixreg_save_area); 183 OFFSET(__LC_FP_CREG_SAVE_AREA, _lowcore, fpt_creg_save_area); 184 OFFSET(__LC_CPU_TIMER_SAVE_AREA, _lowcore, cpu_timer_save_area); 185 OFFSET(__LC_CLOCK_COMP_SAVE_AREA, _lowcore, clock_comp_save_area); 186 OFFSET(__LC_AREGS_SAVE_AREA, _lowcore, access_regs_save_area); 187 OFFSET(__LC_CREGS_SAVE_AREA, _lowcore, cregs_save_area); 188 OFFSET(__LC_PGM_TDB, _lowcore, pgm_tdb); 189 BLANK(); 190 /* gmap/sie offsets */ 191 OFFSET(__GMAP_ASCE, gmap, asce); 192 OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c); 193 OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20); 194 return 0; 195 } 196