osfmk/i386/genassym.c

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28 /*
  29  * Mach Operating System
  30  * Copyright (c) 1991,1990 Carnegie Mellon University
  31  * All Rights Reserved.
  32  *
  33  * Permission to use, copy, modify and distribute this software and its
  34  * documentation is hereby granted, provided that both the copyright
  35  * notice and this permission notice appear in all copies of the
  36  * software, derivative works or modified versions, and any portions
  37  * thereof, and that both notices appear in supporting documentation.
  38  *
  39  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  40  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  41  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  42  *
  43  * Carnegie Mellon requests users of this software to return to
  44  *
  45  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  46  *  School of Computer Science
  47  *  Carnegie Mellon University
  48  *  Pittsburgh PA 15213-3890
  49  *
  50  * any improvements or extensions that they make and grant Carnegie Mellon
  51  * the rights to redistribute these changes.
  52  */
  53
  54 #include <platforms.h>
  55 #include <cpus.h>
  56 #include <mach_kdb.h>
  57 #include <mach_ldebug.h>
  58 #include <stat_time.h>
  59
  60 /*
  61  * Pass field offsets to assembly code.
  62  */
  63 #include <kern/ast.h>
  64 #include <kern/thread.h>
  65 #include <kern/task.h>
  66 #include <kern/lock.h>
  67 #include <kern/thread_act.h>
  68 #include <ipc/ipc_space.h>
  69 #include <ipc/ipc_port.h>
  70 #include <ipc/ipc_pset.h>
  71 #include <kern/host.h>
  72 #include <kern/misc_protos.h>
  73 #include <kern/syscall_emulation.h>
  74 #include <i386/thread.h>
  75 #include <mach/i386/vm_param.h>
  76 #include <i386/seg.h>
  77 #include <i386/pmap.h>
  78 #include <i386/tss.h>
  79 #include <vm/vm_map.h>
  80 #if     NCPUS > 1
  81 #include <i386/mp_desc.h>
  82 #endif
  83
  84 extern void   kernel_preempt_check(void);
  85 cpu_data_t    cpu_data[NCPUS];
  86
  87 /*
  88  * genassym.c is used to produce an
  89  * assembly file which, intermingled with unuseful assembly code,
  90  * has all the necessary definitions emitted. This assembly file is
  91  * then postprocessed with sed to extract only these definitions
  92  * and thus the final assyms.s is created.
  93  *
  94  * This convoluted means is necessary since the structure alignment
  95  * and packing may be different between the host machine and the
  96  * target so we are forced into using the cross compiler to generate
  97  * the values, but we cannot run anything on the target machine.
  98  */
  99
 100 #undef  offsetof
 101 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE)0)->MEMBER)
 102
 103 #if  0
 104 #define DECLARE(SYM,VAL) \
 105         __asm("#DEFINITION#\t.set\t" SYM ",\t%0" : : "n" ((u_int)(VAL)))
 106 #else
 107 #define DECLARE(SYM,VAL) \
 108         __asm("#DEFINITION##define " SYM "\t%0" : : "n" ((u_int)(VAL)))
 109 #endif
 110
 111 int     main(
 112                 int             argc,
 113                 char            ** argv);
 114
 115 int
 116 main(
 117         int     argc,
 118         char    **argv)
 119 {
 120
 121         DECLARE("AST_URGENT",           AST_URGENT);
 122
 123         /* Simple Lock structure */
 124         DECLARE("SLOCK_ILK",    offsetof(usimple_lock_t, interlock));
 125 #if     MACH_LDEBUG
 126         DECLARE("SLOCK_TYPE",   offsetof(usimple_lock_t, lock_type));
 127         DECLARE("SLOCK_PC",     offsetof(usimple_lock_t, debug.lock_pc));
 128         DECLARE("SLOCK_THREAD", offsetof(usimple_lock_t, debug.lock_thread));
 129         DECLARE("SLOCK_DURATIONH",offsetof(usimple_lock_t, debug.duration[0]));
 130         DECLARE("SLOCK_DURATIONL",offsetof(usimple_lock_t, debug.duration[1]));
 131         DECLARE("USLOCK_TAG",   USLOCK_TAG);
 132 #endif  /* MACH_LDEBUG */
 133
 134         /* Mutex structure */
 135         DECLARE("MUTEX_LOCKED", offsetof(mutex_t *, locked));
 136         DECLARE("MUTEX_WAITERS",offsetof(mutex_t *, waiters));
 137         DECLARE("MUTEX_PROMOTED_PRI",offsetof(mutex_t *, promoted_pri));
 138 #if     MACH_LDEBUG
 139         DECLARE("MUTEX_TYPE",   offsetof(mutex_t *, type));
 140         DECLARE("MUTEX_PC",     offsetof(mutex_t *, pc));
 141         DECLARE("MUTEX_THREAD", offsetof(mutex_t *, thread));
 142         DECLARE("MUTEX_TAG",    MUTEX_TAG);
 143 #endif  /* MACH_LDEBUG */
 144
 145 #if     MACH_LDEBUG
 146         DECLARE("TH_MUTEX_COUNT",       offsetof(thread_t, mutex_count));
 147 #endif  /* MACH_LDEBUG */
 148         DECLARE("TH_RECOVER",           offsetof(thread_t, recover));
 149         DECLARE("TH_CONTINUATION",      offsetof(thread_t, continuation));
 150         DECLARE("TH_TOP_ACT",           offsetof(thread_t, top_act));
 151         DECLARE("TH_KERNEL_STACK",      offsetof(thread_t, kernel_stack));
 152
 153         DECLARE("TASK_EMUL",            offsetof(task_t, eml_dispatch));
 154         DECLARE("TASK_MACH_EXC_PORT",
 155                 offsetof(task_t, exc_actions[EXC_MACH_SYSCALL].port));
 156
 157         /* These fields are being added on demand */
 158         DECLARE("ACT_MACH_EXC_PORT",
 159                 offsetof(thread_act_t, exc_actions[EXC_MACH_SYSCALL].port));
 160
 161         DECLARE("ACT_THREAD",   offsetof(thread_act_t, thread));
 162         DECLARE("ACT_TASK",     offsetof(thread_act_t, task));
 163         DECLARE("ACT_PCB",      offsetof(thread_act_t, mact.pcb));
 164         DECLARE("ACT_LOWER",    offsetof(thread_act_t, lower));
 165         DECLARE("ACT_MAP",      offsetof(thread_act_t, map));
 166
 167         DECLARE("MAP_PMAP",     offsetof(vm_map_t, pmap));
 168
 169         DECLARE("DISP_MIN",     offsetof(eml_dispatch_t, disp_min));
 170         DECLARE("DISP_COUNT",   offsetof(eml_dispatch_t, disp_count));
 171         DECLARE("DISP_VECTOR",  offsetof(eml_dispatch_t, disp_vector[0]));
 172
 173 #define IKS ((size_t) (STACK_IKS(0)))
 174
 175         DECLARE("KSS_EBX", IKS + offsetof(struct i386_kernel_state *, k_ebx));
 176         DECLARE("KSS_ESP", IKS + offsetof(struct i386_kernel_state *, k_esp));
 177         DECLARE("KSS_EBP", IKS + offsetof(struct i386_kernel_state *, k_ebp));
 178         DECLARE("KSS_EDI", IKS + offsetof(struct i386_kernel_state *, k_edi));
 179         DECLARE("KSS_ESI", IKS + offsetof(struct i386_kernel_state *, k_esi));
 180         DECLARE("KSS_EIP", IKS + offsetof(struct i386_kernel_state *, k_eip));
 181
 182         DECLARE("IKS_SIZE",     sizeof(struct i386_kernel_state));
 183         DECLARE("IEL_SIZE",     sizeof(struct i386_exception_link));
 184
 185         DECLARE("PCB_FPS",      offsetof(pcb_t, ims.ifps));
 186         DECLARE("PCB_ISS",      offsetof(pcb_t, iss));
 187
 188         DECLARE("FP_VALID",     offsetof(struct i386_fpsave_state *,fp_valid));
 189         DECLARE("FP_SAVE_STATE",
 190                 offsetof(struct i386_fpsave_state *, fp_save_state));
 191
 192         DECLARE("R_CS",         offsetof(struct i386_saved_state *, cs));
 193         DECLARE("R_SS",         offsetof(struct i386_saved_state *, ss));
 194         DECLARE("R_UESP",       offsetof(struct i386_saved_state *, uesp));
 195         DECLARE("R_EBP",        offsetof(struct i386_saved_state *, ebp));
 196         DECLARE("R_EAX",        offsetof(struct i386_saved_state *, eax));
 197         DECLARE("R_EBX",        offsetof(struct i386_saved_state *, ebx));
 198         DECLARE("R_ECX",        offsetof(struct i386_saved_state *, ecx));
 199         DECLARE("R_EDX",        offsetof(struct i386_saved_state *, edx));
 200         DECLARE("R_ESI",        offsetof(struct i386_saved_state *, esi));
 201         DECLARE("R_EDI",        offsetof(struct i386_saved_state *, edi));
 202         DECLARE("R_TRAPNO",     offsetof(struct i386_saved_state *, trapno));
 203         DECLARE("R_ERR",        offsetof(struct i386_saved_state *, err));
 204         DECLARE("R_EFLAGS",     offsetof(struct i386_saved_state *, efl));
 205         DECLARE("R_EIP",        offsetof(struct i386_saved_state *, eip));
 206         DECLARE("R_CR2",        offsetof(struct i386_saved_state *, cr2));
 207         DECLARE("ISS_SIZE",     sizeof (struct i386_saved_state));
 208
 209         DECLARE("I_ECX",        offsetof(struct i386_interrupt_state *, ecx));
 210         DECLARE("I_EIP",        offsetof(struct i386_interrupt_state *, eip));
 211         DECLARE("I_CS",         offsetof(struct i386_interrupt_state *, cs));
 212         DECLARE("I_EFL",        offsetof(struct i386_interrupt_state *, efl));
 213
 214         DECLARE("NBPG",                 I386_PGBYTES);
 215         DECLARE("VM_MIN_ADDRESS",       VM_MIN_ADDRESS);
 216         DECLARE("VM_MAX_ADDRESS",       VM_MAX_ADDRESS);
 217         DECLARE("KERNELBASE",           VM_MIN_KERNEL_ADDRESS);
 218         DECLARE("LINEAR_KERNELBASE",    LINEAR_KERNEL_ADDRESS);
 219         DECLARE("KERNEL_STACK_SIZE",    KERNEL_STACK_SIZE);
 220
 221         DECLARE("PDESHIFT",     PDESHIFT);
 222         DECLARE("PTESHIFT",     PTESHIFT);
 223         DECLARE("PTEMASK",      PTEMASK);
 224
 225         DECLARE("PTE_PFN",      INTEL_PTE_PFN);
 226         DECLARE("PTE_V",        INTEL_PTE_VALID);
 227         DECLARE("PTE_W",        INTEL_PTE_WRITE);
 228         DECLARE("PTE_INVALID",  ~INTEL_PTE_VALID);
 229
 230         DECLARE("IDTSZ",        IDTSZ);
 231         DECLARE("GDTSZ",        GDTSZ);
 232         DECLARE("LDTSZ",        LDTSZ);
 233
 234         DECLARE("KERNEL_CS",    KERNEL_CS);
 235         DECLARE("KERNEL_DS",    KERNEL_DS);
 236         DECLARE("USER_CS",      USER_CS);
 237         DECLARE("USER_DS",      USER_DS);
 238         DECLARE("KERNEL_TSS",   KERNEL_TSS);
 239         DECLARE("KERNEL_LDT",   KERNEL_LDT);
 240 #if     MACH_KDB
 241         DECLARE("DEBUG_TSS",    DEBUG_TSS);
 242 #endif  /* MACH_KDB */
 243
 244         DECLARE("CPU_DATA",     CPU_DATA);
 245         DECLARE("CPD_ACTIVE_THREAD",
 246                 offsetof(cpu_data_t *, active_thread));
 247 #if     MACH_RT
 248         DECLARE("CPD_PREEMPTION_LEVEL",
 249                 offsetof(cpu_data_t *, preemption_level));
 250 #endif  /* MACH_RT */
 251         DECLARE("CPD_INTERRUPT_LEVEL",
 252                 offsetof(cpu_data_t *, interrupt_level));
 253         DECLARE("CPD_SIMPLE_LOCK_COUNT",
 254                 offsetof(cpu_data_t *,simple_lock_count));
 255         DECLARE("CPD_CPU_NUMBER",
 256                 offsetof(cpu_data_t *,cpu_number));
 257         DECLARE("CPD_CPU_PHYS_NUMBER",
 258                 offsetof(cpu_data_t *,cpu_phys_number));
 259         DECLARE("CPD_CPU_STATUS",
 260                 offsetof(cpu_data_t *,cpu_status));
 261         DECLARE("CPD_MCOUNT_OFF",
 262                 offsetof(cpu_data_t *,mcount_off));
 263
 264         DECLARE("PTES_PER_PAGE",        NPTES);
 265         DECLARE("INTEL_PTE_KERNEL",     INTEL_PTE_VALID|INTEL_PTE_WRITE);
 266
 267         DECLARE("KERNELBASEPDE",
 268                 (LINEAR_KERNEL_ADDRESS >> PDESHIFT) *
 269                 sizeof(pt_entry_t));
 270
 271         DECLARE("TSS_ESP0",     offsetof(struct i386_tss *, esp0));
 272         DECLARE("TSS_SS0",      offsetof(struct i386_tss *, ss0));
 273         DECLARE("TSS_LDT",      offsetof(struct i386_tss *, ldt));
 274         DECLARE("TSS_PDBR",     offsetof(struct i386_tss *, cr3));
 275         DECLARE("TSS_LINK",     offsetof(struct i386_tss *, back_link));
 276
 277         DECLARE("K_TASK_GATE",  ACC_P|ACC_PL_K|ACC_TASK_GATE);
 278         DECLARE("K_TRAP_GATE",  ACC_P|ACC_PL_K|ACC_TRAP_GATE);
 279         DECLARE("U_TRAP_GATE",  ACC_P|ACC_PL_U|ACC_TRAP_GATE);
 280         DECLARE("K_INTR_GATE",  ACC_P|ACC_PL_K|ACC_INTR_GATE);
 281         DECLARE("K_TSS",        ACC_P|ACC_PL_K|ACC_TSS);
 282
 283         /*
 284          *      usimple_lock fields
 285          */
 286         DECLARE("USL_INTERLOCK",        offsetof(usimple_lock_t, interlock));
 287
 288         DECLARE("INTSTACK_SIZE",        INTSTACK_SIZE);
 289 #if     NCPUS > 1
 290         DECLARE("MP_GDT",          offsetof(struct mp_desc_table *, gdt[0]));
 291         DECLARE("MP_IDT",          offsetof(struct mp_desc_table *, idt[0]));
 292 #endif  /* NCPUS > 1 */
 293 #if     !STAT_TIME
 294         DECLARE("LOW_BITS",        offsetof(struct timer *, low_bits));
 295         DECLARE("HIGH_BITS",       offsetof(struct timer *, high_bits));
 296         DECLARE("HIGH_BITS_CHECK", offsetof(struct timer *, high_bits_check));
 297         DECLARE("TIMER_HIGH_UNIT", TIMER_HIGH_UNIT);
 298         DECLARE("TH_SYS_TIMER",    offsetof(struct timer *, system_timer));
 299         DECLARE("TH_USER_TIMER",   offsetof(struct timer *, user_timer));
 300 #endif
 301
 302         return (0);
 303 }
 304
 305
 306 /* Dummy to keep linker quiet */
 307 void
 308 kernel_preempt_check(void)
 309 {
 310 }