LXR darwin-xnu/osfmk/i386/genassym.c

   1/*
   2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3 *
   4 * @APPLE_LICENSE_HEADER_START@
   5 * 
   6 * The contents of this file constitute Original Code as defined in and
   7 * are subject to the Apple Public Source License Version 1.1 (the
   8 * "License").  You may not use this file except in compliance with the
   9 * License.  Please obtain a copy of the License at
  10 * http://www.apple.com/publicsource and read it before using this file.
  11 * 
  12 * This Original Code and all software distributed under the License are
  13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17 * License for the specific language governing rights and limitations
  18 * under the License.
  19 * 
  20 * @APPLE_LICENSE_HEADER_END@
  21 */
  22/*
  23 * @OSF_COPYRIGHT@
  24 */
  25/* 
  26 * Mach Operating System
  27 * Copyright (c) 1991,1990 Carnegie Mellon University
  28 * All Rights Reserved.
  29 * 
  30 * Permission to use, copy, modify and distribute this software and its
  31 * documentation is hereby granted, provided that both the copyright
  32 * notice and this permission notice appear in all copies of the
  33 * software, derivative works or modified versions, and any portions
  34 * thereof, and that both notices appear in supporting documentation.
  35 * 
  36 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39 * 
  40 * Carnegie Mellon requests users of this software to return to
  41 * 
  42 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43 *  School of Computer Science
  44 *  Carnegie Mellon University
  45 *  Pittsburgh PA 15213-3890
  46 * 
  47 * any improvements or extensions that they make and grant Carnegie Mellon
  48 * the rights to redistribute these changes.
  49 */
  50
  51#include <platforms.h>
  52#include <mach_kdb.h>
  53#include <mach_ldebug.h>
  54#include <stat_time.h>
  55
  56/*
  57 * Pass field offsets to assembly code.
  58 */
  59#include <kern/ast.h>
  60#include <kern/thread.h>
  61#include <kern/task.h>
  62#include <kern/lock.h>
  63#include <kern/locks.h>
  64#include <ipc/ipc_space.h>
  65#include <ipc/ipc_port.h>
  66#include <ipc/ipc_pset.h>
  67#include <kern/host.h>
  68#include <kern/misc_protos.h>
  69#include <i386/thread.h>
  70#include <mach/i386/vm_param.h>
  71#include <i386/seg.h>
  72#include <i386/pmap.h>
  73#include <i386/tss.h>
  74#include <i386/cpu_capabilities.h>
  75#include <machine/commpage.h>
  76#include <vm/vm_map.h>
  77#include <i386/mp_desc.h>
  78#include <i386/cpuid.h>
  79#include <pexpert/i386/boot.h>
  80
  81/*
  82 * genassym.c is used to produce an
  83 * assembly file which, intermingled with unuseful assembly code,
  84 * has all the necessary definitions emitted. This assembly file is
  85 * then postprocessed with sed to extract only these definitions
  86 * and thus the final assyms.s is created.
  87 *
  88 * This convoluted means is necessary since the structure alignment
  89 * and packing may be different between the host machine and the
  90 * target so we are forced into using the cross compiler to generate
  91 * the values, but we cannot run anything on the target machine.
  92 */
  93
  94#undef  offsetof
  95#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE)0)->MEMBER)
  96
  97#if  0
  98#define DECLARE(SYM,VAL) \
  99        __asm("#DEFINITION#\t.set\t" SYM ",\t%0" : : "n" ((u_int)(VAL)))
 100#else
 101#define DECLARE(SYM,VAL) \
 102        __asm("#DEFINITION##define " SYM "\t%0" : : "n" ((u_int)(VAL)))
 103#endif
 104
 105int     main(
 106                int             argc,
 107                char            ** argv);
 108
 109int
 110main(
 111        int     argc,
 112        char    **argv)
 113{
 114
 115        DECLARE("AST_URGENT",           AST_URGENT);
 116
 117        /* Simple Lock structure */
 118        DECLARE("SLOCK_ILK",    offsetof(usimple_lock_t, interlock));
 119#if     MACH_LDEBUG
 120        DECLARE("SLOCK_TYPE",   offsetof(usimple_lock_t, lock_type));
 121        DECLARE("SLOCK_PC",     offsetof(usimple_lock_t, debug.lock_pc));
 122        DECLARE("SLOCK_THREAD", offsetof(usimple_lock_t, debug.lock_thread));
 123        DECLARE("SLOCK_DURATIONH",offsetof(usimple_lock_t, debug.duration[0]));
 124        DECLARE("SLOCK_DURATIONL",offsetof(usimple_lock_t, debug.duration[1]));
 125        DECLARE("USLOCK_TAG",   USLOCK_TAG);
 126#endif  /* MACH_LDEBUG */
 127
 128        /* Mutex structure */
 129        DECLARE("MUTEX_LOCKED", offsetof(mutex_t *, lck_mtx.lck_mtx_locked));
 130        DECLARE("MUTEX_WAITERS",offsetof(mutex_t *, lck_mtx.lck_mtx_waiters));
 131        DECLARE("MUTEX_PROMOTED_PRI",offsetof(mutex_t *, lck_mtx.lck_mtx_pri));
 132#if     MACH_LDEBUG
 133        DECLARE("MUTEX_TYPE",   offsetof(mutex_t *, type));
 134        DECLARE("MUTEX_PC",     offsetof(mutex_t *, pc));
 135        DECLARE("MUTEX_THREAD", offsetof(mutex_t *, thread));
 136        DECLARE("MUTEX_TAG",    MUTEX_TAG);
 137#endif  /* MACH_LDEBUG */
 138        DECLARE("MUTEX_IND",    LCK_MTX_TAG_INDIRECT);
 139        DECLARE("MUTEX_ITAG",   offsetof(lck_mtx_t *, lck_mtx_tag));
 140        DECLARE("MUTEX_PTR",    offsetof(lck_mtx_t *, lck_mtx_ptr));
 141
 142        DECLARE("TH_RECOVER",           offsetof(thread_t, recover));
 143        DECLARE("TH_CONTINUATION",      offsetof(thread_t, continuation));
 144        DECLARE("TH_KERNEL_STACK",      offsetof(thread_t, kernel_stack));
 145
 146        DECLARE("TASK_MACH_EXC_PORT",
 147                offsetof(task_t, exc_actions[EXC_MACH_SYSCALL].port));
 148
 149        /* These fields are being added on demand */
 150        DECLARE("ACT_MACH_EXC_PORT",
 151                offsetof(thread_t, exc_actions[EXC_MACH_SYSCALL].port));
 152
 153        DECLARE("ACT_TASK",     offsetof(thread_t, task));
 154        DECLARE("ACT_PCB",      offsetof(thread_t, machine.pcb));
 155        DECLARE("ACT_MAP",      offsetof(thread_t, map));
 156
 157        DECLARE("MAP_PMAP",     offsetof(vm_map_t, pmap));
 158
 159#define IKS ((size_t) (STACK_IKS(0)))
 160
 161        DECLARE("KSS_EBX", IKS + offsetof(struct i386_kernel_state *, k_ebx));
 162        DECLARE("KSS_ESP", IKS + offsetof(struct i386_kernel_state *, k_esp));
 163        DECLARE("KSS_EBP", IKS + offsetof(struct i386_kernel_state *, k_ebp));
 164        DECLARE("KSS_EDI", IKS + offsetof(struct i386_kernel_state *, k_edi));
 165        DECLARE("KSS_ESI", IKS + offsetof(struct i386_kernel_state *, k_esi));
 166        DECLARE("KSS_EIP", IKS + offsetof(struct i386_kernel_state *, k_eip));
 167
 168        DECLARE("IKS_SIZE",     sizeof(struct i386_kernel_state));
 169        DECLARE("IEL_SIZE",     sizeof(struct i386_exception_link));
 170
 171        DECLARE("PCB_FPS",      offsetof(pcb_t, ims.ifps));
 172        DECLARE("PCB_ISS",      offsetof(pcb_t, iss));
 173
 174        DECLARE("FP_VALID",     offsetof(struct i386_fpsave_state *,fp_valid));
 175        DECLARE("FP_SAVE_STATE",
 176                offsetof(struct i386_fpsave_state *, fp_save_state));
 177
 178        DECLARE("R_CS",         offsetof(struct i386_saved_state *, cs));
 179        DECLARE("R_SS",         offsetof(struct i386_saved_state *, ss));
 180        DECLARE("R_UESP",       offsetof(struct i386_saved_state *, uesp));
 181        DECLARE("R_EBP",        offsetof(struct i386_saved_state *, ebp));
 182        DECLARE("R_EAX",        offsetof(struct i386_saved_state *, eax));
 183        DECLARE("R_EBX",        offsetof(struct i386_saved_state *, ebx));
 184        DECLARE("R_ECX",        offsetof(struct i386_saved_state *, ecx));
 185        DECLARE("R_EDX",        offsetof(struct i386_saved_state *, edx));
 186        DECLARE("R_ESI",        offsetof(struct i386_saved_state *, esi));
 187        DECLARE("R_EDI",        offsetof(struct i386_saved_state *, edi));
 188        DECLARE("R_TRAPNO",     offsetof(struct i386_saved_state *, trapno));
 189        DECLARE("R_ERR",        offsetof(struct i386_saved_state *, err));
 190        DECLARE("R_EFLAGS",     offsetof(struct i386_saved_state *, efl));
 191        DECLARE("R_EIP",        offsetof(struct i386_saved_state *, eip));
 192        DECLARE("R_CR2",        offsetof(struct i386_saved_state *, cr2));
 193        DECLARE("ISS_SIZE",     sizeof (struct i386_saved_state));
 194
 195        DECLARE("I_ECX",        offsetof(struct i386_interrupt_state *, ecx));
 196        DECLARE("I_EIP",        offsetof(struct i386_interrupt_state *, eip));
 197        DECLARE("I_CS",         offsetof(struct i386_interrupt_state *, cs));
 198        DECLARE("I_EFL",        offsetof(struct i386_interrupt_state *, efl));
 199
 200        DECLARE("NBPG",                 I386_PGBYTES);
 201        DECLARE("PAGE_SIZE",            I386_PGBYTES);
 202        DECLARE("PAGE_MASK",            I386_PGBYTES-1);
 203        DECLARE("PAGE_SHIFT",           12);
 204        DECLARE("NKPT",                 NKPT);
 205        DECLARE("KPTDI",                KPTDI);
 206        DECLARE("VM_MIN_ADDRESS",       VM_MIN_ADDRESS);
 207        DECLARE("VM_MAX_ADDRESS",       VM_MAX_ADDRESS);
 208        DECLARE("KERNELBASE",           VM_MIN_KERNEL_ADDRESS);
 209        DECLARE("LINEAR_KERNELBASE",    LINEAR_KERNEL_ADDRESS);
 210        DECLARE("KERNEL_STACK_SIZE",    KERNEL_STACK_SIZE);
 211
 212        DECLARE("COMM_PAGE_BASE_ADDR",  _COMM_PAGE_BASE_ADDRESS);
 213
 214        DECLARE("PDESHIFT",     PDESHIFT);
 215        DECLARE("PTEMASK",      PTEMASK);
 216        DECLARE("PTEINDX",      PTEINDX);
 217        DECLARE("PTE_PFN",      INTEL_PTE_PFN);
 218        DECLARE("PTE_V",        INTEL_PTE_VALID);
 219        DECLARE("PTE_W",        INTEL_PTE_WRITE);
 220        DECLARE("PTE_PS",       INTEL_PTE_PS);
 221        DECLARE("PTE_U",        INTEL_PTE_USER);
 222        DECLARE("PTE_INVALID",  ~INTEL_PTE_VALID);
 223        DECLARE("CR4_PAE",      CR4_PAE);
 224        DECLARE("NPGPTD", NPGPTD);
 225
 226        DECLARE("IDTSZ",        IDTSZ);
 227        DECLARE("GDTSZ",        GDTSZ);
 228        DECLARE("LDTSZ",        LDTSZ);
 229
 230        DECLARE("KERNEL_CS",    KERNEL_CS);
 231        DECLARE("KERNEL_DS",    KERNEL_DS);
 232        DECLARE("USER_CS",      USER_CS);
 233        DECLARE("USER_DS",      USER_DS);
 234        DECLARE("KERNEL_TSS",   KERNEL_TSS);
 235        DECLARE("KERNEL_LDT",   KERNEL_LDT);
 236#if     MACH_KDB
 237        DECLARE("DEBUG_TSS",    DEBUG_TSS);
 238#endif  /* MACH_KDB */
 239        DECLARE("CPU_DATA_GS",  CPU_DATA_GS);
 240
 241        DECLARE("CPU_THIS",
 242                offsetof(cpu_data_t *, cpu_this));
 243        DECLARE("CPU_ACTIVE_THREAD",
 244                offsetof(cpu_data_t *, cpu_active_thread));
 245        DECLARE("CPU_ACTIVE_KLOADED",
 246                offsetof(cpu_data_t *, cpu_active_kloaded));
 247        DECLARE("CPU_ACTIVE_STACK",
 248                offsetof(cpu_data_t *, cpu_active_stack));
 249        DECLARE("CPU_KERNEL_STACK",
 250                offsetof(cpu_data_t *, cpu_kernel_stack));
 251        DECLARE("CPU_INT_STACK_TOP",
 252                offsetof(cpu_data_t *, cpu_int_stack_top));
 253#if     MACH_RT
 254        DECLARE("CPU_PREEMPTION_LEVEL",
 255                offsetof(cpu_data_t *, cpu_preemption_level));
 256#endif  /* MACH_RT */
 257        DECLARE("CPU_INTERRUPT_LEVEL",
 258                offsetof(cpu_data_t *, cpu_interrupt_level));
 259        DECLARE("CPU_SIMPLE_LOCK_COUNT",
 260                offsetof(cpu_data_t *,cpu_simple_lock_count));
 261        DECLARE("CPU_NUMBER_GS",
 262                offsetof(cpu_data_t *,cpu_number));
 263        DECLARE("CPU_RUNNING",
 264                offsetof(cpu_data_t *,cpu_running));
 265        DECLARE("CPU_MCOUNT_OFF",
 266                offsetof(cpu_data_t *,cpu_mcount_off));
 267        DECLARE("CPU_PENDING_AST",
 268                offsetof(cpu_data_t *,cpu_pending_ast));
 269        DECLARE("CPU_DESC_TABLEP",
 270                offsetof(cpu_data_t *,cpu_desc_tablep));
 271        DECLARE("CPU_PROCESSOR",
 272                offsetof(cpu_data_t *,cpu_processor));
 273        DECLARE("CPU_RTC_NANOTIME",
 274                offsetof(cpu_data_t *,cpu_rtc_nanotime));
 275
 276        DECLARE("INTEL_PTE_KERNEL",     INTEL_PTE_VALID|INTEL_PTE_WRITE);
 277        DECLARE("PTDPTDI",     PTDPTDI);
 278        DECLARE("PDESHIFT",     PDESHIFT);
 279        DECLARE("PDESIZE",     PDESIZE);
 280        DECLARE("PTESIZE",     PTESIZE);
 281        DECLARE("APTDPTDI",     APTDPTDI);
 282
 283        DECLARE("KERNELBASEPDE",
 284                (LINEAR_KERNEL_ADDRESS >> PDESHIFT) *
 285                sizeof(pt_entry_t));
 286
 287        DECLARE("TSS_ESP0",     offsetof(struct i386_tss *, esp0));
 288        DECLARE("TSS_SS0",      offsetof(struct i386_tss *, ss0));
 289        DECLARE("TSS_LDT",      offsetof(struct i386_tss *, ldt));
 290        DECLARE("TSS_PDBR",     offsetof(struct i386_tss *, cr3));
 291        DECLARE("TSS_LINK",     offsetof(struct i386_tss *, back_link));
 292
 293        DECLARE("K_TASK_GATE",  ACC_P|ACC_PL_K|ACC_TASK_GATE);
 294        DECLARE("K_TRAP_GATE",  ACC_P|ACC_PL_K|ACC_TRAP_GATE);
 295        DECLARE("U_TRAP_GATE",  ACC_P|ACC_PL_U|ACC_TRAP_GATE);
 296        DECLARE("K_INTR_GATE",  ACC_P|ACC_PL_K|ACC_INTR_GATE);
 297        DECLARE("K_TSS",        ACC_P|ACC_PL_K|ACC_TSS);
 298
 299        /*
 300         *      usimple_lock fields
 301         */
 302        DECLARE("USL_INTERLOCK",        offsetof(usimple_lock_t, interlock));
 303
 304        DECLARE("INTSTACK_SIZE",        INTSTACK_SIZE);
 305        DECLARE("MP_GDT",          offsetof(struct mp_desc_table *, gdt[0]));
 306        DECLARE("MP_IDT",          offsetof(struct mp_desc_table *, idt[0]));
 307        DECLARE("TIMER_LOW",            offsetof(struct timer *, low_bits));
 308        DECLARE("TIMER_HIGH",           offsetof(struct timer *, high_bits));
 309        DECLARE("TIMER_HIGHCHK",        offsetof(struct timer *, high_bits_check));
 310        DECLARE("KADDR", offsetof(struct KernelBootArgs *, kaddr));
 311        DECLARE("KSIZE", offsetof(struct KernelBootArgs *, ksize));
 312
 313        DECLARE("NANOTIME_BASE_TSC",
 314                offsetof(commpage_nanotime_t*, nt_base_tsc));
 315        DECLARE("NANOTIME_BASE_NS",
 316                offsetof(commpage_nanotime_t*, nt_base_ns));
 317        DECLARE("NANOTIME_SCALE",
 318                offsetof(commpage_nanotime_t*, nt_scale));
 319        DECLARE("NANOTIME_SHIFT",
 320                offsetof(commpage_nanotime_t*, nt_shift));
 321        DECLARE("NANOTIME_CHECK_TSC",
 322                offsetof(commpage_nanotime_t*, nt_check_tsc));
 323
 324        DECLARE("RTN_TSC",
 325                offsetof(rtc_nanotime_t *, rnt_tsc));
 326        DECLARE("RTN_NANOS",
 327                offsetof(rtc_nanotime_t *, rnt_nanos));
 328        DECLARE("RTN_SCALE",
 329                offsetof(rtc_nanotime_t *, rnt_scale));
 330        DECLARE("RTN_SHIFT",
 331                offsetof(rtc_nanotime_t *, rnt_shift));
 332
 333        /* values from kern/timer.h */
 334        DECLARE("TIMER_LOW",
 335                offsetof(struct timer *, low_bits));
 336        DECLARE("TIMER_HIGH",
 337                offsetof(struct timer *, high_bits));
 338        DECLARE("TIMER_HIGHCHK",
 339                offsetof(struct timer *, high_bits_check));
 340#if !STAT_TIME
 341        DECLARE("TIMER_TSTAMP",
 342                offsetof(struct timer *, tstamp));
 343
 344        DECLARE("CURRENT_TIMER",
 345                offsetof(struct processor *, processor_data.current_timer));
 346#endif
 347        DECLARE("SYSTEM_TIMER",
 348                offsetof(struct thread *, system_timer));
 349        DECLARE("USER_TIMER",
 350                offsetof(struct thread *, user_timer));
 351
 352        return (0);
 353}
 354
 355