osfmk/arm/genassym.c

   1 /*
   2  * Copyright (c) 2007 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56
  57 #include <stddef.h>
  58
  59 #include <mach_ldebug.h>
  60
  61 /*
  62  * Pass field offsets to assembly code.
  63  */
  64 #include <kern/ast.h>
  65 #include <kern/thread.h>
  66 #include <kern/task.h>
  67 #include <kern/lock_stat.h>
  68 #include <kern/locks.h>
  69 #include <ipc/ipc_space.h>
  70 #include <ipc/ipc_port.h>
  71 #include <ipc/ipc_pset.h>
  72 #include <kern/host.h>
  73 #include <kern/misc_protos.h>
  74 #include <kern/syscall_sw.h>
  75 #include <arm/thread.h>
  76 #include <mach/arm/vm_param.h>
  77 #include <arm/pmap.h>
  78 #include <arm/trap.h>
  79 #include <arm/cpu_data_internal.h>
  80 #include <arm/cpu_capabilities.h>
  81 #include <arm/cpu_internal.h>
  82 #include <arm/rtclock.h>
  83 #include <machine/commpage.h>
  84 #include <machine/config.h>
  85 #include <vm/vm_map.h>
  86 #include <pexpert/arm/boot.h>
  87 #include <arm/proc_reg.h>
  88 #include <prng/entropy.h>
  89
  90 /*
  91  * genassym.c is used to produce an
  92  * assembly file which, intermingled with unuseful assembly code,
  93  * has all the necessary definitions emitted. This assembly file is
  94  * then postprocessed with sed to extract only these definitions
  95  * and thus the final assyms.s is created.
  96  *
  97  * This convoluted means is necessary since the structure alignment
  98  * and packing may be different between the host machine and the
  99  * target so we are forced into using the cross compiler to generate
 100  * the values, but we cannot run anything on the target machine.
 101  */
 102
 103 #define DECLARE(SYM, VAL) \
 104         __asm("DEFINITION__define__" SYM ":\t .ascii \"%0\"" : : "n"  ((u_int)(VAL)))
 105
 106
 107 int     main(
 108         int             argc,
 109         char            ** argv);
 110
 111 int
 112 main(
 113         int     argc,
 114         char    **argv)
 115 {
 116         DECLARE("T_PREFETCH_ABT", T_PREFETCH_ABT);
 117         DECLARE("T_DATA_ABT", T_DATA_ABT);
 118
 119         DECLARE("AST_URGENT", AST_URGENT);
 120         DECLARE("AST_PREEMPTION", AST_PREEMPTION);
 121
 122         DECLARE("TH_RECOVER", offsetof(struct thread, recover));
 123         DECLARE("TH_CONTINUATION", offsetof(struct thread, continuation));
 124         DECLARE("TH_KERNEL_STACK", offsetof(struct thread, kernel_stack));
 125         DECLARE("TH_KSTACKPTR", offsetof(struct thread, machine.kstackptr));
 126         DECLARE("TH_UTHREAD", offsetof(struct thread, uthread));
 127
 128         DECLARE("TASK_MACH_EXC_PORT",
 129             offsetof(struct task, exc_actions[EXC_MACH_SYSCALL].port));
 130
 131         /* These fields are being added on demand */
 132         DECLARE("ACT_TASK", offsetof(struct thread, task));
 133         DECLARE("ACT_PCBDATA", offsetof(struct thread, machine.PcbData));
 134 #if __ARM_VFP__
 135         DECLARE("ACT_UVFP", offsetof(struct thread, machine.PcbData.VFPdata));
 136 #endif
 137         DECLARE("TH_CTH_SELF", offsetof(struct thread, machine.cthread_self));
 138         DECLARE("ACT_PCBDATA_PC", offsetof(struct thread, machine.PcbData.pc));
 139         DECLARE("ACT_PCBDATA_R0", offsetof(struct thread, machine.PcbData.r[0]));
 140         DECLARE("ACT_PREEMPT_CNT", offsetof(struct thread, machine.preemption_count));
 141         DECLARE("ACT_CPUDATAP", offsetof(struct thread, machine.CpuDatap));
 142         DECLARE("ACT_MAP", offsetof(struct thread, map));
 143 #if __ARM_USER_PROTECT__
 144         DECLARE("ACT_UPTW_TTB", offsetof(struct thread, machine.uptw_ttb));
 145         DECLARE("ACT_KPTW_TTB", offsetof(struct thread, machine.kptw_ttb));
 146         DECLARE("ACT_ASID", offsetof(struct thread, machine.asid));
 147 #endif
 148         DECLARE("ACT_DEBUGDATA", offsetof(struct thread, machine.DebugData));
 149         DECLARE("TH_IOTIER_OVERRIDE", offsetof(struct thread, iotier_override));
 150         DECLARE("TH_RWLOCK_CNT", offsetof(struct thread, rwlock_count));
 151         DECLARE("TH_TMP_ALLOC_CNT", offsetof(struct thread, t_temp_alloc_count));
 152         DECLARE("TH_SCHED_FLAGS", offsetof(struct thread, sched_flags));
 153         DECLARE("TH_SFLAG_RW_PROMOTED", TH_SFLAG_RW_PROMOTED);
 154
 155         DECLARE("TH_MACH_SYSCALLS", offsetof(struct thread, syscalls_mach));
 156         DECLARE("TH_UNIX_SYSCALLS", offsetof(struct thread, syscalls_unix));
 157         DECLARE("TASK_BSD_INFO", offsetof(struct task, bsd_info));
 158
 159         DECLARE("MACH_TRAP_TABLE_COUNT", MACH_TRAP_TABLE_COUNT);
 160         DECLARE("MACH_TRAP_TABLE_ENTRY_SIZE", sizeof(mach_trap_t));
 161
 162         DECLARE("MAP_PMAP", offsetof(struct _vm_map, pmap));
 163
 164         DECLARE("SS_SIZE", sizeof(struct arm_saved_state));
 165         DECLARE("SS_LR", offsetof(struct arm_saved_state, lr));
 166         DECLARE("SS_CPSR", offsetof(struct arm_saved_state, cpsr));
 167         DECLARE("SS_PC", offsetof(struct arm_saved_state, pc));
 168         DECLARE("SS_R0", offsetof(struct arm_saved_state, r[0]));
 169         DECLARE("SS_R4", offsetof(struct arm_saved_state, r[4]));
 170         DECLARE("SS_R9", offsetof(struct arm_saved_state, r[9]));
 171         DECLARE("SS_R12", offsetof(struct arm_saved_state, r[12]));
 172         DECLARE("SS_SP", offsetof(struct arm_saved_state, sp));
 173         DECLARE("SS_STATUS", offsetof(struct arm_saved_state, fsr));
 174         DECLARE("SS_VADDR", offsetof(struct arm_saved_state, far));
 175         DECLARE("SS_EXC", offsetof(struct arm_saved_state, exception));
 176
 177 #if __ARM_VFP__
 178         DECLARE("SS_KVFP", offsetof(struct arm_saved_state, VFPdata));
 179         DECLARE("VSS_SIZE", sizeof(struct arm_vfpsaved_state));
 180         DECLARE("VSS_FPSCR", offsetof(struct arm_vfpsaved_state, fpscr));
 181         DECLARE("VSS_FPEXC", offsetof(struct arm_vfpsaved_state, fpexc));
 182
 183         DECLARE("EXC_CTX_SIZE", sizeof(struct arm_saved_state) +
 184             sizeof(struct arm_vfpsaved_state) +
 185             VFPSAVE_ALIGN);
 186         DECLARE("VSS_ALIGN", VFPSAVE_ALIGN);
 187 #else
 188         DECLARE("EXC_CTX_SIZE", sizeof(struct arm_saved_state));
 189 #endif
 190
 191
 192         DECLARE("PGBYTES", ARM_PGBYTES);
 193         DECLARE("PGSHIFT", ARM_PGSHIFT);
 194         DECLARE("PGMASK", ARM_PGMASK);
 195
 196         DECLARE("VM_MIN_ADDRESS", VM_MIN_ADDRESS);
 197         DECLARE("VM_MAX_ADDRESS", VM_MAX_ADDRESS);
 198         DECLARE("KERNELBASE", VM_MIN_KERNEL_ADDRESS);
 199         DECLARE("KERNEL_STACK_SIZE", KERNEL_STACK_SIZE);
 200
 201         DECLARE("KERN_INVALID_ADDRESS", KERN_INVALID_ADDRESS);
 202
 203         DECLARE("cdeSize",
 204             sizeof(struct cpu_data_entry));
 205
 206         DECLARE("cdSize",
 207             sizeof(struct cpu_data));
 208
 209         DECLARE("CPU_ACTIVE_THREAD",
 210             offsetof(cpu_data_t, cpu_active_thread));
 211         DECLARE("CPU_ACTIVE_STACK",
 212             offsetof(cpu_data_t, cpu_active_stack));
 213         DECLARE("CPU_ISTACKPTR",
 214             offsetof(cpu_data_t, istackptr));
 215         DECLARE("CPU_INTSTACK_TOP",
 216             offsetof(cpu_data_t, intstack_top));
 217         DECLARE("CPU_FIQSTACKPTR",
 218             offsetof(cpu_data_t, fiqstackptr));
 219         DECLARE("CPU_FIQSTACK_TOP",
 220             offsetof(cpu_data_t, fiqstack_top));
 221         DECLARE("CPU_NUMBER_GS",
 222             offsetof(cpu_data_t, cpu_number));
 223         DECLARE("CPU_RUNNING",
 224             offsetof(cpu_data_t, cpu_running));
 225         DECLARE("CPU_MCOUNT_OFF",
 226             offsetof(cpu_data_t, cpu_mcount_off));
 227         DECLARE("CPU_PENDING_AST",
 228             offsetof(cpu_data_t, cpu_pending_ast));
 229         DECLARE("CPU_CACHE_DISPATCH",
 230             offsetof(cpu_data_t, cpu_cache_dispatch));
 231         DECLARE("CPU_BASE_TIMEBASE_LOW",
 232             offsetof(cpu_data_t, cpu_base_timebase_low));
 233         DECLARE("CPU_BASE_TIMEBASE_HIGH",
 234             offsetof(cpu_data_t, cpu_base_timebase_high));
 235         DECLARE("CPU_TIMEBASE_LOW",
 236             offsetof(cpu_data_t, cpu_timebase_low));
 237         DECLARE("CPU_TIMEBASE_HIGH",
 238             offsetof(cpu_data_t, cpu_timebase_high));
 239         DECLARE("CPU_DECREMENTER",
 240             offsetof(cpu_data_t, cpu_decrementer));
 241         DECLARE("CPU_GET_DECREMENTER_FUNC",
 242             offsetof(cpu_data_t, cpu_get_decrementer_func));
 243         DECLARE("CPU_SET_DECREMENTER_FUNC",
 244             offsetof(cpu_data_t, cpu_set_decrementer_func));
 245         DECLARE("CPU_GET_FIQ_HANDLER",
 246             offsetof(cpu_data_t, cpu_get_fiq_handler));
 247         DECLARE("CPU_TBD_HARDWARE_ADDR",
 248             offsetof(cpu_data_t, cpu_tbd_hardware_addr));
 249         DECLARE("CPU_TBD_HARDWARE_VAL",
 250             offsetof(cpu_data_t, cpu_tbd_hardware_val));
 251         DECLARE("CPU_INT_STATE",
 252             offsetof(cpu_data_t, cpu_int_state));
 253         DECLARE("INTERRUPT_HANDLER",
 254             offsetof(cpu_data_t, interrupt_handler));
 255         DECLARE("INTERRUPT_TARGET",
 256             offsetof(cpu_data_t, interrupt_target));
 257         DECLARE("INTERRUPT_REFCON",
 258             offsetof(cpu_data_t, interrupt_refCon));
 259         DECLARE("INTERRUPT_NUB",
 260             offsetof(cpu_data_t, interrupt_nub));
 261         DECLARE("INTERRUPT_SOURCE",
 262             offsetof(cpu_data_t, interrupt_source));
 263         DECLARE("CPU_USER_DEBUG",
 264             offsetof(cpu_data_t, cpu_user_debug));
 265         DECLARE("CPU_STAT_IRQ",
 266             offsetof(cpu_data_t, cpu_stat.irq_ex_cnt));
 267         DECLARE("CPU_STAT_IRQ_WAKE",
 268             offsetof(cpu_data_t, cpu_stat.irq_ex_cnt_wake));
 269         DECLARE("CPU_RESET_HANDLER",
 270             offsetof(cpu_data_t, cpu_reset_handler));
 271         DECLARE("CPU_RESET_ASSIST",
 272             offsetof(cpu_data_t, cpu_reset_assist));
 273         DECLARE("RTCLOCK_DATAP",
 274             offsetof(cpu_data_t, rtclock_datap));
 275 #ifdef  __arm__
 276         DECLARE("CPU_EXC_VECTORS",
 277             offsetof(cpu_data_t, cpu_exc_vectors));
 278 #endif
 279
 280         DECLARE("RTCLOCKDataSize",
 281             sizeof(rtclock_data_t));
 282         DECLARE("RTCLOCK_ADJ_ABSTIME_LOW",
 283             offsetof(rtclock_data_t, rtc_adj.abstime_val.low));
 284         DECLARE("RTCLOCK_ADJ_ABSTIME_HIGH",
 285             offsetof(rtclock_data_t, rtc_adj.abstime_val.high));
 286         DECLARE("RTCLOCK_BASE_ABSTIME_LOW",
 287             offsetof(rtclock_data_t, rtc_base.abstime_val.low));
 288         DECLARE("RTCLOCK_BASE_ABSTIME_HIGH",
 289             offsetof(rtclock_data_t, rtc_base.abstime_val.high));
 290         DECLARE("RTCLOCK_TB_FUNC",
 291             offsetof(rtclock_data_t, rtc_timebase_func));
 292         DECLARE("RTCLOCK_TB_ADDR",
 293             offsetof(rtclock_data_t, rtc_timebase_addr));
 294         DECLARE("RTCLOCK_TB_VAL",
 295             offsetof(rtclock_data_t, rtc_timebase_val));
 296
 297         DECLARE("SIGPdec", SIGPdec);
 298
 299         DECLARE("rhdSize",
 300             sizeof(struct reset_handler_data));
 301
 302         DECLARE("CPU_DATA_ENTRIES", offsetof(struct reset_handler_data, cpu_data_entries));
 303         DECLARE("BOOT_ARGS", offsetof(struct reset_handler_data, boot_args));
 304         DECLARE("ASSIST_RESET_HANDLER", offsetof(struct reset_handler_data, assist_reset_handler));
 305
 306         DECLARE("CPU_DATA_PADDR", offsetof(struct cpu_data_entry, cpu_data_paddr));
 307
 308         DECLARE("INTSTACK_SIZE", INTSTACK_SIZE);
 309         DECLARE("FIQSTACK_SIZE", FIQSTACK_SIZE);
 310
 311         DECLARE("PAGE_MAX_SIZE", PAGE_MAX_SIZE);
 312
 313         /* values from kern/timer.h */
 314         DECLARE("TIMER_LOW",
 315             offsetof(struct timer, low_bits));
 316         DECLARE("TIMER_HIGH",
 317             offsetof(struct timer, high_bits));
 318         DECLARE("TIMER_HIGHCHK",
 319             offsetof(struct timer, high_bits_check));
 320         DECLARE("TIMER_TSTAMP",
 321             offsetof(struct timer, tstamp));
 322         DECLARE("THREAD_TIMER",
 323             offsetof(struct processor, thread_timer));
 324         DECLARE("KERNEL_TIMER",
 325             offsetof(struct processor, kernel_timer));
 326         DECLARE("SYSTEM_STATE",
 327             offsetof(struct processor, system_state));
 328         DECLARE("USER_STATE",
 329             offsetof(struct processor, user_state));
 330         DECLARE("CURRENT_STATE",
 331             offsetof(struct processor, current_state));
 332
 333         DECLARE("SYSTEM_TIMER",
 334             offsetof(struct thread, system_timer));
 335         DECLARE("USER_TIMER",
 336             offsetof(struct thread, user_timer));
 337
 338 #if !CONFIG_SKIP_PRECISE_USER_KERNEL_TIME || HAS_FAST_CNTVCT
 339         DECLARE("PRECISE_USER_KERNEL_TIME",
 340             offsetof(struct thread, precise_user_kernel_time));
 341 #endif
 342
 343         DECLARE("BA_VIRT_BASE",
 344             offsetof(struct boot_args, virtBase));
 345         DECLARE("BA_PHYS_BASE",
 346             offsetof(struct boot_args, physBase));
 347         DECLARE("BA_MEM_SIZE",
 348             offsetof(struct boot_args, memSize));
 349         DECLARE("BA_TOP_OF_KERNEL_DATA",
 350             offsetof(struct boot_args, topOfKernelData));
 351
 352         DECLARE("ENTROPY_SAMPLE_COUNT",
 353             offsetof(entropy_data_t, sample_count));
 354         DECLARE("ENTROPY_BUFFER",
 355             offsetof(entropy_data_t, buffer));
 356         DECLARE("ENTROPY_BUFFER_INDEX_MASK",
 357             offsetof(entropy_data_t, buffer_index_mask));
 358         DECLARE("ENTROPY_BUFFER_ROR_MASK",
 359             offsetof(entropy_data_t, ror_mask));
 360
 361         return 0;
 362 }