|  | // SPDX-License-Identifier: GPL-2.0 | 
|  | /* | 
|  | * Generate definitions needed by assembly language modules. | 
|  | * This code generates raw asm output which is post-processed to extract | 
|  | * and format the required data. | 
|  | */ | 
|  |  | 
|  | #define ASM_OFFSETS_C | 
|  |  | 
|  | #include <linux/kbuild.h> | 
|  | #include <linux/kvm_host.h> | 
|  | #include <linux/sched.h> | 
|  | #include <linux/purgatory.h> | 
|  | #include <linux/pgtable.h> | 
|  | #include <linux/ftrace.h> | 
|  | #include <asm/gmap.h> | 
|  | #include <asm/stacktrace.h> | 
|  |  | 
|  | int main(void) | 
|  | { | 
|  | /* task struct offsets */ | 
|  | OFFSET(__TASK_stack, task_struct, stack); | 
|  | OFFSET(__TASK_thread, task_struct, thread); | 
|  | OFFSET(__TASK_pid, task_struct, pid); | 
|  | BLANK(); | 
|  | /* thread struct offsets */ | 
|  | OFFSET(__THREAD_ksp, thread_struct, ksp); | 
|  | BLANK(); | 
|  | /* thread info offsets */ | 
|  | OFFSET(__TI_flags, task_struct, thread_info.flags); | 
|  | OFFSET(__TI_sie, task_struct, thread_info.sie); | 
|  | BLANK(); | 
|  | /* pt_regs offsets */ | 
|  | OFFSET(__PT_PSW, pt_regs, psw); | 
|  | OFFSET(__PT_GPRS, pt_regs, gprs); | 
|  | OFFSET(__PT_R0, pt_regs, gprs[0]); | 
|  | OFFSET(__PT_R1, pt_regs, gprs[1]); | 
|  | OFFSET(__PT_R2, pt_regs, gprs[2]); | 
|  | OFFSET(__PT_R3, pt_regs, gprs[3]); | 
|  | OFFSET(__PT_R4, pt_regs, gprs[4]); | 
|  | OFFSET(__PT_R5, pt_regs, gprs[5]); | 
|  | OFFSET(__PT_R6, pt_regs, gprs[6]); | 
|  | OFFSET(__PT_R7, pt_regs, gprs[7]); | 
|  | OFFSET(__PT_R8, pt_regs, gprs[8]); | 
|  | OFFSET(__PT_R9, pt_regs, gprs[9]); | 
|  | OFFSET(__PT_R10, pt_regs, gprs[10]); | 
|  | OFFSET(__PT_R11, pt_regs, gprs[11]); | 
|  | OFFSET(__PT_R12, pt_regs, gprs[12]); | 
|  | OFFSET(__PT_R13, pt_regs, gprs[13]); | 
|  | OFFSET(__PT_R14, pt_regs, gprs[14]); | 
|  | OFFSET(__PT_R15, pt_regs, gprs[15]); | 
|  | OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2); | 
|  | OFFSET(__PT_FLAGS, pt_regs, flags); | 
|  | OFFSET(__PT_CR1, pt_regs, cr1); | 
|  | OFFSET(__PT_LAST_BREAK, pt_regs, last_break); | 
|  | DEFINE(__PT_SIZE, sizeof(struct pt_regs)); | 
|  | BLANK(); | 
|  | /* stack_frame offsets */ | 
|  | OFFSET(__SF_BACKCHAIN, stack_frame, back_chain); | 
|  | OFFSET(__SF_GPRS, stack_frame, gprs); | 
|  | OFFSET(__SF_EMPTY, stack_frame, empty[0]); | 
|  | OFFSET(__SF_SIE_CONTROL, stack_frame, sie_control_block); | 
|  | OFFSET(__SF_SIE_SAVEAREA, stack_frame, sie_savearea); | 
|  | OFFSET(__SF_SIE_REASON, stack_frame, sie_reason); | 
|  | OFFSET(__SF_SIE_FLAGS, stack_frame, sie_flags); | 
|  | OFFSET(__SF_SIE_CONTROL_PHYS, stack_frame, sie_control_block_phys); | 
|  | OFFSET(__SF_SIE_GUEST_ASCE, stack_frame, sie_guest_asce); | 
|  | DEFINE(STACK_FRAME_OVERHEAD, sizeof(struct stack_frame)); | 
|  | BLANK(); | 
|  | OFFSET(__SFUSER_BACKCHAIN, stack_frame_user, back_chain); | 
|  | DEFINE(STACK_FRAME_USER_OVERHEAD, sizeof(struct stack_frame_user)); | 
|  | OFFSET(__SFVDSO_RETURN_ADDRESS, stack_frame_vdso_wrapper, return_address); | 
|  | DEFINE(STACK_FRAME_VDSO_OVERHEAD, sizeof(struct stack_frame_vdso_wrapper)); | 
|  | BLANK(); | 
|  | /* hardware defined lowcore locations 0x000 - 0x1ff */ | 
|  | OFFSET(__LC_EXT_PARAMS, lowcore, ext_params); | 
|  | OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr); | 
|  | OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code); | 
|  | OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc); | 
|  | OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_code); | 
|  | OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code); | 
|  | OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num); | 
|  | OFFSET(__LC_PER_CODE, lowcore, per_code); | 
|  | OFFSET(__LC_PER_ATMID, lowcore, per_atmid); | 
|  | OFFSET(__LC_PER_ADDRESS, lowcore, per_address); | 
|  | OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id); | 
|  | OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id); | 
|  | OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id); | 
|  | OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id); | 
|  | OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code); | 
|  | OFFSET(__LC_MON_CODE, lowcore, monitor_code); | 
|  | OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id); | 
|  | OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr); | 
|  | OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm); | 
|  | OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word); | 
|  | OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code); | 
|  | OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code); | 
|  | OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address); | 
|  | OFFSET(__LC_PGM_LAST_BREAK, lowcore, pgm_last_break); | 
|  | OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe); | 
|  | OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe); | 
|  | OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw); | 
|  | OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw); | 
|  | OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw); | 
|  | OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw); | 
|  | OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw); | 
|  | OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw); | 
|  | OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw); | 
|  | OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw); | 
|  | OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw); | 
|  | OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw); | 
|  | OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw); | 
|  | OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw); | 
|  | /* software defined lowcore locations 0x200 - 0xdff*/ | 
|  | OFFSET(__LC_SAVE_AREA, lowcore, save_area); | 
|  | OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart); | 
|  | OFFSET(__LC_PCPU, lowcore, pcpu); | 
|  | OFFSET(__LC_RETURN_PSW, lowcore, return_psw); | 
|  | OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw); | 
|  | OFFSET(__LC_SYS_ENTER_TIMER, lowcore, sys_enter_timer); | 
|  | OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer); | 
|  | OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer); | 
|  | OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer); | 
|  | OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock); | 
|  | OFFSET(__LC_INT_CLOCK, lowcore, int_clock); | 
|  | OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock); | 
|  | OFFSET(__LC_CURRENT, lowcore, current_task); | 
|  | OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack); | 
|  | OFFSET(__LC_ASYNC_STACK, lowcore, async_stack); | 
|  | OFFSET(__LC_NODAT_STACK, lowcore, nodat_stack); | 
|  | OFFSET(__LC_RESTART_STACK, lowcore, restart_stack); | 
|  | OFFSET(__LC_MCCK_STACK, lowcore, mcck_stack); | 
|  | OFFSET(__LC_RESTART_FN, lowcore, restart_fn); | 
|  | OFFSET(__LC_RESTART_DATA, lowcore, restart_data); | 
|  | OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source); | 
|  | OFFSET(__LC_RESTART_FLAGS, lowcore, restart_flags); | 
|  | OFFSET(__LC_KERNEL_ASCE, lowcore, kernel_asce); | 
|  | OFFSET(__LC_USER_ASCE, lowcore, user_asce); | 
|  | OFFSET(__LC_LPP, lowcore, lpp); | 
|  | OFFSET(__LC_CURRENT_PID, lowcore, current_pid); | 
|  | OFFSET(__LC_GMAP, lowcore, gmap); | 
|  | OFFSET(__LC_LAST_BREAK, lowcore, last_break); | 
|  | /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */ | 
|  | OFFSET(__LC_DUMP_REIPL, lowcore, ipib); | 
|  | OFFSET(__LC_VMCORE_INFO, lowcore, vmcore_info); | 
|  | OFFSET(__LC_OS_INFO, lowcore, os_info); | 
|  | /* hardware defined lowcore locations 0x1000 - 0x18ff */ | 
|  | OFFSET(__LC_MCESAD, lowcore, mcesad); | 
|  | OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2); | 
|  | OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area); | 
|  | OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area); | 
|  | OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area); | 
|  | OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area); | 
|  | OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area); | 
|  | OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area); | 
|  | OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area); | 
|  | OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area); | 
|  | OFFSET(__LC_LAST_BREAK_SAVE_AREA, lowcore, last_break_save_area); | 
|  | OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area); | 
|  | OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area); | 
|  | OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb); | 
|  | BLANK(); | 
|  | /* gmap/sie offsets */ | 
|  | OFFSET(__GMAP_ASCE, gmap, asce); | 
|  | OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c); | 
|  | OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20); | 
|  | /* kexec_sha_region */ | 
|  | OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start); | 
|  | OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len); | 
|  | DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region)); | 
|  | /* sizeof kernel parameter area */ | 
|  | DEFINE(__PARMAREA_SIZE, sizeof(struct parmarea)); | 
|  | /* kernel parameter area offsets */ | 
|  | DEFINE(IPL_DEVICE, PARMAREA + offsetof(struct parmarea, ipl_device)); | 
|  | DEFINE(INITRD_START, PARMAREA + offsetof(struct parmarea, initrd_start)); | 
|  | DEFINE(INITRD_SIZE, PARMAREA + offsetof(struct parmarea, initrd_size)); | 
|  | DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base)); | 
|  | DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size)); | 
|  | DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line)); | 
|  | DEFINE(MAX_COMMAND_LINE_SIZE, PARMAREA + offsetof(struct parmarea, max_command_line_size)); | 
|  | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 
|  | /* function graph return value tracing */ | 
|  | OFFSET(__FGRAPH_RET_GPR2, fgraph_ret_regs, gpr2); | 
|  | OFFSET(__FGRAPH_RET_FP, fgraph_ret_regs, fp); | 
|  | DEFINE(__FGRAPH_RET_SIZE, sizeof(struct fgraph_ret_regs)); | 
|  | #endif | 
|  | OFFSET(__FTRACE_REGS_PT_REGS, ftrace_regs, regs); | 
|  | DEFINE(__FTRACE_REGS_SIZE, sizeof(struct ftrace_regs)); | 
|  |  | 
|  | OFFSET(__PCPU_FLAGS, pcpu, flags); | 
|  | return 0; | 
|  | } |