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
 105 int     main(
 106                 int             argc,
 107                 char            ** argv);
 108
 109 int
 110 main(
 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