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 8 #define ASM_OFFSETS_C 9 10 #include <linux/kbuild.h> 11 #include <linux/kvm_host.h> 12 #include <linux/sched.h> 13 #include <linux/purgatory.h> 14 #include <linux/pgtable.h> 15 #include <linux/ftrace.h> 16 #include <asm/gmap.h> 17 #include <asm/stacktrace.h> 18 19 int main(void) 20 { 21 /* task struct offsets */ 22 OFFSET(__TASK_stack, task_struct, stack); 23 OFFSET(__TASK_thread, task_struct, thread); 24 OFFSET(__TASK_pid, task_struct, pid); 25 BLANK(); 26 /* thread struct offsets */ 27 OFFSET(__THREAD_ksp, thread_struct, ksp); 28 BLANK(); 29 /* thread info offsets */ 30 OFFSET(__TI_flags, task_struct, thread_info.flags); 31 BLANK(); 32 /* pt_regs offsets */ 33 OFFSET(__PT_PSW, pt_regs, psw); 34 OFFSET(__PT_GPRS, pt_regs, gprs); 35 OFFSET(__PT_R0, pt_regs, gprs[0]); 36 OFFSET(__PT_R1, pt_regs, gprs[1]); 37 OFFSET(__PT_R2, pt_regs, gprs[2]); 38 OFFSET(__PT_R3, pt_regs, gprs[3]); 39 OFFSET(__PT_R4, pt_regs, gprs[4]); 40 OFFSET(__PT_R5, pt_regs, gprs[5]); 41 OFFSET(__PT_R6, pt_regs, gprs[6]); 42 OFFSET(__PT_R7, pt_regs, gprs[7]); 43 OFFSET(__PT_R8, pt_regs, gprs[8]); 44 OFFSET(__PT_R9, pt_regs, gprs[9]); 45 OFFSET(__PT_R10, pt_regs, gprs[10]); 46 OFFSET(__PT_R11, pt_regs, gprs[11]); 47 OFFSET(__PT_R12, pt_regs, gprs[12]); 48 OFFSET(__PT_R13, pt_regs, gprs[13]); 49 OFFSET(__PT_R14, pt_regs, gprs[14]); 50 OFFSET(__PT_R15, pt_regs, gprs[15]); 51 OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2); 52 OFFSET(__PT_FLAGS, pt_regs, flags); 53 OFFSET(__PT_CR1, pt_regs, cr1); 54 OFFSET(__PT_LAST_BREAK, pt_regs, last_break); 55 DEFINE(__PT_SIZE, sizeof(struct pt_regs)); 56 BLANK(); 57 /* stack_frame offsets */ 58 OFFSET(__SF_BACKCHAIN, stack_frame, back_chain); 59 OFFSET(__SF_GPRS, stack_frame, gprs); 60 OFFSET(__SF_EMPTY, stack_frame, empty[0]); 61 OFFSET(__SF_SIE_CONTROL, stack_frame, sie_control_block); 62 OFFSET(__SF_SIE_SAVEAREA, stack_frame, sie_savearea); 63 OFFSET(__SF_SIE_REASON, stack_frame, sie_reason); 64 OFFSET(__SF_SIE_FLAGS, stack_frame, sie_flags); 65 OFFSET(__SF_SIE_CONTROL_PHYS, stack_frame, sie_control_block_phys); 66 OFFSET(__SF_SIE_GUEST_ASCE, stack_frame, sie_guest_asce); 67 DEFINE(STACK_FRAME_OVERHEAD, sizeof(struct stack_frame)); 68 BLANK(); 69 OFFSET(__SFUSER_BACKCHAIN, stack_frame_user, back_chain); 70 DEFINE(STACK_FRAME_USER_OVERHEAD, sizeof(struct stack_frame_user)); 71 OFFSET(__SFVDSO_RETURN_ADDRESS, stack_frame_vdso_wrapper, return_address); 72 DEFINE(STACK_FRAME_VDSO_OVERHEAD, sizeof(struct stack_frame_vdso_wrapper)); 73 BLANK(); 74 /* hardware defined lowcore locations 0x000 - 0x1ff */ 75 OFFSET(__LC_EXT_PARAMS, lowcore, ext_params); 76 OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr); 77 OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code); 78 OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc); 79 OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_code); 80 OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code); 81 OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num); 82 OFFSET(__LC_PER_CODE, lowcore, per_code); 83 OFFSET(__LC_PER_ATMID, lowcore, per_atmid); 84 OFFSET(__LC_PER_ADDRESS, lowcore, per_address); 85 OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id); 86 OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id); 87 OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id); 88 OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id); 89 OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code); 90 OFFSET(__LC_MON_CODE, lowcore, monitor_code); 91 OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id); 92 OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr); 93 OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm); 94 OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word); 95 OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code); 96 OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code); 97 OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address); 98 OFFSET(__LC_PGM_LAST_BREAK, lowcore, pgm_last_break); 99 OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe); 100 OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe); 101 OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw); 102 OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw); 103 OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw); 104 OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw); 105 OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw); 106 OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw); 107 OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw); 108 OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw); 109 OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw); 110 OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw); 111 OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw); 112 OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw); 113 /* software defined lowcore locations 0x200 - 0xdff*/ 114 OFFSET(__LC_SAVE_AREA_SYNC, lowcore, save_area_sync); 115 OFFSET(__LC_SAVE_AREA_ASYNC, lowcore, save_area_async); 116 OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart); 117 OFFSET(__LC_PCPU, lowcore, pcpu); 118 OFFSET(__LC_RETURN_PSW, lowcore, return_psw); 119 OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw); 120 OFFSET(__LC_SYS_ENTER_TIMER, lowcore, sys_enter_timer); 121 OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer); 122 OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer); 123 OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer); 124 OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock); 125 OFFSET(__LC_INT_CLOCK, lowcore, int_clock); 126 OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock); 127 OFFSET(__LC_CURRENT, lowcore, current_task); 128 OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack); 129 OFFSET(__LC_ASYNC_STACK, lowcore, async_stack); 130 OFFSET(__LC_NODAT_STACK, lowcore, nodat_stack); 131 OFFSET(__LC_RESTART_STACK, lowcore, restart_stack); 132 OFFSET(__LC_MCCK_STACK, lowcore, mcck_stack); 133 OFFSET(__LC_RESTART_FN, lowcore, restart_fn); 134 OFFSET(__LC_RESTART_DATA, lowcore, restart_data); 135 OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source); 136 OFFSET(__LC_RESTART_FLAGS, lowcore, restart_flags); 137 OFFSET(__LC_KERNEL_ASCE, lowcore, kernel_asce); 138 OFFSET(__LC_USER_ASCE, lowcore, user_asce); 139 OFFSET(__LC_LPP, lowcore, lpp); 140 OFFSET(__LC_CURRENT_PID, lowcore, current_pid); 141 OFFSET(__LC_GMAP, lowcore, gmap); 142 OFFSET(__LC_LAST_BREAK, lowcore, last_break); 143 /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */ 144 OFFSET(__LC_DUMP_REIPL, lowcore, ipib); 145 OFFSET(__LC_VMCORE_INFO, lowcore, vmcore_info); 146 OFFSET(__LC_OS_INFO, lowcore, os_info); 147 /* hardware defined lowcore locations 0x1000 - 0x18ff */ 148 OFFSET(__LC_MCESAD, lowcore, mcesad); 149 OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2); 150 OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area); 151 OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area); 152 OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area); 153 OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area); 154 OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area); 155 OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area); 156 OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area); 157 OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area); 158 OFFSET(__LC_LAST_BREAK_SAVE_AREA, lowcore, last_break_save_area); 159 OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area); 160 OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area); 161 OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb); 162 BLANK(); 163 /* gmap/sie offsets */ 164 OFFSET(__GMAP_ASCE, gmap, asce); 165 OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c); 166 OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20); 167 /* kexec_sha_region */ 168 OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start); 169 OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len); 170 DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region)); 171 /* sizeof kernel parameter area */ 172 DEFINE(__PARMAREA_SIZE, sizeof(struct parmarea)); 173 /* kernel parameter area offsets */ 174 DEFINE(IPL_DEVICE, PARMAREA + offsetof(struct parmarea, ipl_device)); 175 DEFINE(INITRD_START, PARMAREA + offsetof(struct parmarea, initrd_start)); 176 DEFINE(INITRD_SIZE, PARMAREA + offsetof(struct parmarea, initrd_size)); 177 DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base)); 178 DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size)); 179 DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line)); 180 DEFINE(MAX_COMMAND_LINE_SIZE, PARMAREA + offsetof(struct parmarea, max_command_line_size)); 181 #ifdef CONFIG_FUNCTION_GRAPH_TRACER 182 /* function graph return value tracing */ 183 OFFSET(__FGRAPH_RET_GPR2, fgraph_ret_regs, gpr2); 184 OFFSET(__FGRAPH_RET_FP, fgraph_ret_regs, fp); 185 DEFINE(__FGRAPH_RET_SIZE, sizeof(struct fgraph_ret_regs)); 186 #endif 187 OFFSET(__FTRACE_REGS_PT_REGS, ftrace_regs, regs); 188 DEFINE(__FTRACE_REGS_SIZE, sizeof(struct ftrace_regs)); 189 190 OFFSET(__PCPU_FLAGS, pcpu, flags); 191 return 0; 192 } 193