osfmk/i386/genassym.c

   1 /*
   2  * Copyright (c) 2000 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 <cpus.h>
  53 #include <mach_kdb.h>
  54 #include <mach_ldebug.h>
  55 #include <stat_time.h>
  56
  57 /*
  58  * Pass field offsets to assembly code.
  59  */
  60 #include <kern/ast.h>
  61 #include <kern/thread.h>
  62 #include <kern/task.h>
  63 #include <kern/lock.h>
  64 #include <kern/thread_act.h>
  65 #include <ipc/ipc_space.h>
  66 #include <ipc/ipc_port.h>
  67 #include <ipc/ipc_pset.h>
  68 #include <kern/host.h>
  69 #include <kern/misc_protos.h>
  70 #include <kern/syscall_emulation.h>
  71 #include <i386/thread.h>
  72 #include <mach/i386/vm_param.h>
  73 #include <i386/seg.h>
  74 #include <i386/pmap.h>
  75 #include <i386/tss.h>
  76 #include <vm/vm_map.h>
  77 #if     NCPUS > 1
  78 #include <i386/mp_desc.h>
  79 #endif
  80
  81 extern void   kernel_preempt_check(void);
  82 cpu_data_t    cpu_data[NCPUS];
  83
  84 /*
  85  * genassym.c is used to produce an
  86  * assembly file which, intermingled with unuseful assembly code,
  87  * has all the necessary definitions emitted. This assembly file is
  88  * then postprocessed with sed to extract only these definitions
  89  * and thus the final assyms.s is created.
  90  *
  91  * This convoluted means is necessary since the structure alignment
  92  * and packing may be different between the host machine and the
  93  * target so we are forced into using the cross compiler to generate
  94  * the values, but we cannot run anything on the target machine.
  95  */
  96
  97 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE)0)->MEMBER)
  98
  99 #if  0
 100 #define DECLARE(SYM,VAL) \
 101         __asm("#DEFINITION#\t.set\t" SYM ",\t%0" : : "n" ((u_int)(VAL)))
 102 #else
 103 #define DECLARE(SYM,VAL) \
 104         __asm("#DEFINITION##define " SYM "\t%0" : : "n" ((u_int)(VAL)))
 105 #endif
 106
 107 int     main(
 108                 int             argc,
 109                 char            ** argv);
 110
 111 int
 112 main(
 113         int     argc,
 114         char    **argv)
 115 {
 116
 117         DECLARE("AST_URGENT",           AST_URGENT);
 118
 119 #if     MACH_LDEBUG
 120         /*
 121          * XXX
 122          */
 123 #define SIMPLE_LOCK_TAG 0x5353
 124 #define MUTEX_TAG       0x4d4d
 125         DECLARE("TH_MUTEX_COUNT",       offsetof(thread_t, mutex_count));
 126         DECLARE("SIMPLE_LOCK_TAG",      SIMPLE_LOCK_TAG);
 127         DECLARE("MUTEX_TAG",            MUTEX_TAG);
 128 #endif  /* MACH_LDEBUG */
 129         DECLARE("TH_RECOVER",           offsetof(thread_t, recover));
 130         DECLARE("TH_CONTINUATION",      offsetof(thread_t, continuation));
 131         DECLARE("TH_TOP_ACT",           offsetof(thread_t, top_act));
 132         DECLARE("TH_KERNEL_STACK",      offsetof(thread_t, kernel_stack));
 133
 134         DECLARE("TASK_EMUL",            offsetof(task_t, eml_dispatch));
 135         DECLARE("TASK_MACH_EXC_PORT",
 136                 offsetof(task_t, exc_actions[EXC_MACH_SYSCALL].port));
 137
 138         /* These fields are being added on demand */
 139         DECLARE("ACT_MACH_EXC_PORT",
 140                 offsetof(thread_act_t, exc_actions[EXC_MACH_SYSCALL].port));
 141
 142         DECLARE("ACT_THREAD",   offsetof(thread_act_t, thread));
 143         DECLARE("ACT_TASK",     offsetof(thread_act_t, task));
 144         DECLARE("ACT_PCB",      offsetof(thread_act_t, mact.pcb));
 145         DECLARE("ACT_KLOADED",  offsetof(thread_act_t, kernel_loaded));
 146         DECLARE("ACT_KLOADING", offsetof(thread_act_t, kernel_loading));
 147         DECLARE("ACT_LOWER",    offsetof(thread_act_t, lower));
 148         DECLARE("ACT_MAP",      offsetof(thread_act_t, map));
 149
 150         DECLARE("MAP_PMAP",     offsetof(vm_map_t, pmap));
 151
 152         DECLARE("HOST_NAME",    offsetof(host_t, host_self));
 153
 154         DECLARE("DISP_MIN",     offsetof(eml_dispatch_t, disp_min));
 155         DECLARE("DISP_COUNT",   offsetof(eml_dispatch_t, disp_count));
 156         DECLARE("DISP_VECTOR",  offsetof(eml_dispatch_t, disp_vector[0]));
 157
 158 #define IKS ((size_t) (STACK_IKS(0)))
 159
 160         DECLARE("KSS_EBX", IKS + offsetof(struct i386_kernel_state *, k_ebx));
 161         DECLARE("KSS_ESP", IKS + offsetof(struct i386_kernel_state *, k_esp));
 162         DECLARE("KSS_EBP", IKS + offsetof(struct i386_kernel_state *, k_ebp));
 163         DECLARE("KSS_EDI", IKS + offsetof(struct i386_kernel_state *, k_edi));
 164         DECLARE("KSS_ESI", IKS + offsetof(struct i386_kernel_state *, k_esi));
 165         DECLARE("KSS_EIP", IKS + offsetof(struct i386_kernel_state *, k_eip));
 166
 167         DECLARE("IKS_SIZE",     sizeof(struct i386_kernel_state));
 168         DECLARE("IEL_SIZE",     sizeof(struct i386_exception_link));
 169
 170         DECLARE("PCB_FPS",      offsetof(pcb_t, ims.ifps));
 171         DECLARE("PCB_ISS",      offsetof(pcb_t, iss));
 172
 173         DECLARE("FP_VALID",     offsetof(struct i386_fpsave_state *,fp_valid));
 174         DECLARE("FP_SAVE_STATE",
 175                 offsetof(struct i386_fpsave_state *, fp_save_state));
 176
 177         DECLARE("R_CS",         offsetof(struct i386_saved_state *, cs));
 178         DECLARE("R_SS",         offsetof(struct i386_saved_state *, ss));
 179         DECLARE("R_UESP",       offsetof(struct i386_saved_state *, uesp));
 180         DECLARE("R_EBP",        offsetof(struct i386_saved_state *, ebp));
 181         DECLARE("R_EAX",        offsetof(struct i386_saved_state *, eax));
 182         DECLARE("R_EBX",        offsetof(struct i386_saved_state *, ebx));
 183         DECLARE("R_ECX",        offsetof(struct i386_saved_state *, ecx));
 184         DECLARE("R_EDX",        offsetof(struct i386_saved_state *, edx));
 185         DECLARE("R_ESI",        offsetof(struct i386_saved_state *, esi));
 186         DECLARE("R_EDI",        offsetof(struct i386_saved_state *, edi));
 187         DECLARE("R_TRAPNO",     offsetof(struct i386_saved_state *, trapno));
 188         DECLARE("R_ERR",        offsetof(struct i386_saved_state *, err));
 189         DECLARE("R_EFLAGS",     offsetof(struct i386_saved_state *, efl));
 190         DECLARE("R_EIP",        offsetof(struct i386_saved_state *, eip));
 191         DECLARE("R_CR2",        offsetof(struct i386_saved_state *, cr2));
 192         DECLARE("ISS_SIZE",     sizeof (struct i386_saved_state));
 193
 194         DECLARE("I_ECX",        offsetof(struct i386_interrupt_state *, ecx));
 195         DECLARE("I_EIP",        offsetof(struct i386_interrupt_state *, eip));
 196         DECLARE("I_CS",         offsetof(struct i386_interrupt_state *, cs));
 197         DECLARE("I_EFL",        offsetof(struct i386_interrupt_state *, efl));
 198
 199         DECLARE("NBPG",                 I386_PGBYTES);
 200         DECLARE("VM_MIN_ADDRESS",       VM_MIN_ADDRESS);
 201         DECLARE("VM_MAX_ADDRESS",       VM_MAX_ADDRESS);
 202         DECLARE("KERNELBASE",           VM_MIN_KERNEL_ADDRESS);
 203         DECLARE("LINEAR_KERNELBASE",    LINEAR_KERNEL_ADDRESS);
 204         DECLARE("KERNEL_STACK_SIZE",    KERNEL_STACK_SIZE);
 205
 206         DECLARE("PDESHIFT",     PDESHIFT);
 207         DECLARE("PTESHIFT",     PTESHIFT);
 208         DECLARE("PTEMASK",      PTEMASK);
 209
 210         DECLARE("PTE_PFN",      INTEL_PTE_PFN);
 211         DECLARE("PTE_V",        INTEL_PTE_VALID);
 212         DECLARE("PTE_W",        INTEL_PTE_WRITE);
 213         DECLARE("PTE_INVALID",  ~INTEL_PTE_VALID);
 214
 215         DECLARE("IDTSZ",        IDTSZ);
 216         DECLARE("GDTSZ",        GDTSZ);
 217         DECLARE("LDTSZ",        LDTSZ);
 218
 219         DECLARE("KERNEL_CS",    KERNEL_CS);
 220         DECLARE("KERNEL_DS",    KERNEL_DS);
 221         DECLARE("USER_CS",      USER_CS);
 222         DECLARE("USER_DS",      USER_DS);
 223         DECLARE("KERNEL_TSS",   KERNEL_TSS);
 224         DECLARE("KERNEL_LDT",   KERNEL_LDT);
 225 #if     MACH_KDB
 226         DECLARE("DEBUG_TSS",    DEBUG_TSS);
 227 #endif  /* MACH_KDB */
 228
 229         DECLARE("CPU_DATA",     CPU_DATA);
 230         DECLARE("CPD_ACTIVE_THREAD",
 231                 offsetof(cpu_data_t *, active_thread));
 232 #if     MACH_RT
 233         DECLARE("CPD_PREEMPTION_LEVEL",
 234                 offsetof(cpu_data_t *, preemption_level));
 235 #endif  /* MACH_RT */
 236         DECLARE("CPD_INTERRUPT_LEVEL",
 237                 offsetof(cpu_data_t *, interrupt_level));
 238         DECLARE("CPD_SIMPLE_LOCK_COUNT",
 239                 offsetof(cpu_data_t *,simple_lock_count));
 240
 241         DECLARE("PTES_PER_PAGE",        NPTES);
 242         DECLARE("INTEL_PTE_KERNEL",     INTEL_PTE_VALID|INTEL_PTE_WRITE);
 243
 244         DECLARE("KERNELBASEPDE",
 245                 (LINEAR_KERNEL_ADDRESS >> PDESHIFT) *
 246                 sizeof(pt_entry_t));
 247
 248         DECLARE("TSS_ESP0",     offsetof(struct i386_tss *, esp0));
 249         DECLARE("TSS_SS0",      offsetof(struct i386_tss *, ss0));
 250         DECLARE("TSS_LDT",      offsetof(struct i386_tss *, ldt));
 251         DECLARE("TSS_PDBR",     offsetof(struct i386_tss *, cr3));
 252         DECLARE("TSS_LINK",     offsetof(struct i386_tss *, back_link));
 253
 254         DECLARE("K_TASK_GATE",  ACC_P|ACC_PL_K|ACC_TASK_GATE);
 255         DECLARE("K_TRAP_GATE",  ACC_P|ACC_PL_K|ACC_TRAP_GATE);
 256         DECLARE("U_TRAP_GATE",  ACC_P|ACC_PL_U|ACC_TRAP_GATE);
 257         DECLARE("K_INTR_GATE",  ACC_P|ACC_PL_K|ACC_INTR_GATE);
 258         DECLARE("K_TSS",        ACC_P|ACC_PL_K|ACC_TSS);
 259
 260         /*
 261          *      usimple_lock fields
 262          */
 263         DECLARE("USL_INTERLOCK",        offsetof(usimple_lock_t, interlock));
 264
 265         DECLARE("INTSTACK_SIZE",        INTSTACK_SIZE);
 266 #if     NCPUS > 1
 267         DECLARE("MP_GDT",          offsetof(struct mp_desc_table *, gdt[0]));
 268         DECLARE("MP_IDT",          offsetof(struct mp_desc_table *, idt[0]));
 269 #endif  /* NCPUS > 1 */
 270 #if     !STAT_TIME
 271         DECLARE("LOW_BITS",        offsetof(struct timer *, low_bits));
 272         DECLARE("HIGH_BITS",       offsetof(struct timer *, high_bits));
 273         DECLARE("HIGH_BITS_CHECK", offsetof(struct timer *, high_bits_check));
 274         DECLARE("TIMER_HIGH_UNIT", TIMER_HIGH_UNIT);
 275         DECLARE("TH_SYS_TIMER",    offsetof(struct timer *, system_timer));
 276         DECLARE("TH_USER_TIMER",   offsetof(struct timer *, user_timer));
 277 #endif
 278
 279         return (0);
 280 }
 281
 282
 283 /* Dummy to keep linker quiet */
 284 void
 285 kernel_preempt_check(void)
 286 {
 287 }