[apple/xnu.git] / osfmk / i386 / genassym.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */

#include <platforms.h>
#include <cpus.h>
#include <mach_kdb.h>
#include <mach_ldebug.h>
#include <stat_time.h>

/*
 * Pass field offsets to assembly code.
 */
#include <kern/ast.h>
#include <kern/thread.h>
#include <kern/task.h>
#include <kern/lock.h>
#include <kern/thread_act.h>
#include <ipc/ipc_space.h>
#include <ipc/ipc_port.h>
#include <ipc/ipc_pset.h>
#include <kern/host.h>
#include <kern/misc_protos.h>
#include <kern/syscall_emulation.h>
#include <i386/thread.h>
#include <mach/i386/vm_param.h>
#include <i386/seg.h>
#include <i386/pmap.h>
#include <i386/tss.h>
#include <vm/vm_map.h>
#if	NCPUS > 1
#include <i386/mp_desc.h>
#endif

extern void   kernel_preempt_check(void);
cpu_data_t    cpu_data[NCPUS];

/*
 * genassym.c is used to produce an
 * assembly file which, intermingled with unuseful assembly code,
 * has all the necessary definitions emitted. This assembly file is
 * then postprocessed with sed to extract only these definitions
 * and thus the final assyms.s is created.
 *
 * This convoluted means is necessary since the structure alignment
 * and packing may be different between the host machine and the
 * target so we are forced into using the cross compiler to generate
 * the values, but we cannot run anything on the target machine.
 */

#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE)0)->MEMBER)

#if  0
#define DECLARE(SYM,VAL) \
	__asm("#DEFINITION#\t.set\t" SYM ",\t%0" : : "n" ((u_int)(VAL)))
#else
#define DECLARE(SYM,VAL) \
	__asm("#DEFINITION##define " SYM "\t%0" : : "n" ((u_int)(VAL)))
#endif

int	main(
		int		argc,
		char		** argv);

int
main(
	int	argc,
	char	**argv)
{

	DECLARE("AST_URGENT",		AST_URGENT);

#if	MACH_LDEBUG
	/*
	 * XXX 
	 */
#define	SIMPLE_LOCK_TAG	0x5353
#define	MUTEX_TAG	0x4d4d
	DECLARE("TH_MUTEX_COUNT",	offsetof(thread_t, mutex_count));
	DECLARE("SIMPLE_LOCK_TAG",	SIMPLE_LOCK_TAG);
	DECLARE("MUTEX_TAG",		MUTEX_TAG);
#endif	/* MACH_LDEBUG */
	DECLARE("TH_RECOVER",		offsetof(thread_t, recover));
	DECLARE("TH_CONTINUATION",	offsetof(thread_t, continuation));
	DECLARE("TH_TOP_ACT",		offsetof(thread_t, top_act));
	DECLARE("TH_KERNEL_STACK",	offsetof(thread_t, kernel_stack));

	DECLARE("TASK_EMUL", 		offsetof(task_t, eml_dispatch));
	DECLARE("TASK_MACH_EXC_PORT",
		offsetof(task_t, exc_actions[EXC_MACH_SYSCALL].port));

	/* These fields are being added on demand */
	DECLARE("ACT_MACH_EXC_PORT",
		offsetof(thread_act_t, exc_actions[EXC_MACH_SYSCALL].port));

        DECLARE("ACT_THREAD",	offsetof(thread_act_t, thread));
	DECLARE("ACT_TASK",	offsetof(thread_act_t, task));
	DECLARE("ACT_PCB",	offsetof(thread_act_t, mact.pcb));
	DECLARE("ACT_KLOADED",	offsetof(thread_act_t, kernel_loaded));
	DECLARE("ACT_KLOADING",	offsetof(thread_act_t, kernel_loading));
	DECLARE("ACT_LOWER",	offsetof(thread_act_t, lower));
	DECLARE("ACT_MAP",	offsetof(thread_act_t, map));

	DECLARE("MAP_PMAP",	offsetof(vm_map_t, pmap));

	DECLARE("HOST_NAME",	offsetof(host_t, host_self));

	DECLARE("DISP_MIN",	offsetof(eml_dispatch_t, disp_min));
	DECLARE("DISP_COUNT",	offsetof(eml_dispatch_t, disp_count));
	DECLARE("DISP_VECTOR",	offsetof(eml_dispatch_t, disp_vector[0]));

#define IKS ((size_t) (STACK_IKS(0)))

	DECLARE("KSS_EBX", IKS + offsetof(struct i386_kernel_state *, k_ebx));
	DECLARE("KSS_ESP", IKS + offsetof(struct i386_kernel_state *, k_esp));
	DECLARE("KSS_EBP", IKS + offsetof(struct i386_kernel_state *, k_ebp));
	DECLARE("KSS_EDI", IKS + offsetof(struct i386_kernel_state *, k_edi));
	DECLARE("KSS_ESI", IKS + offsetof(struct i386_kernel_state *, k_esi));
	DECLARE("KSS_EIP", IKS + offsetof(struct i386_kernel_state *, k_eip));

	DECLARE("IKS_SIZE",	sizeof(struct i386_kernel_state));
	DECLARE("IEL_SIZE",	sizeof(struct i386_exception_link));

	DECLARE("PCB_FPS",	offsetof(pcb_t, ims.ifps));
	DECLARE("PCB_ISS",	offsetof(pcb_t, iss));

	DECLARE("FP_VALID",	offsetof(struct i386_fpsave_state *,fp_valid));
	DECLARE("FP_SAVE_STATE",
		offsetof(struct i386_fpsave_state *, fp_save_state));

	DECLARE("R_CS",		offsetof(struct i386_saved_state *, cs));
	DECLARE("R_SS",		offsetof(struct i386_saved_state *, ss));
	DECLARE("R_UESP",	offsetof(struct i386_saved_state *, uesp));
	DECLARE("R_EBP",	offsetof(struct i386_saved_state *, ebp));
	DECLARE("R_EAX",	offsetof(struct i386_saved_state *, eax));
	DECLARE("R_EBX",	offsetof(struct i386_saved_state *, ebx));
	DECLARE("R_ECX",	offsetof(struct i386_saved_state *, ecx));
	DECLARE("R_EDX",	offsetof(struct i386_saved_state *, edx));
	DECLARE("R_ESI",	offsetof(struct i386_saved_state *, esi));
	DECLARE("R_EDI",	offsetof(struct i386_saved_state *, edi));
	DECLARE("R_TRAPNO",	offsetof(struct i386_saved_state *, trapno));
	DECLARE("R_ERR",	offsetof(struct i386_saved_state *, err));
	DECLARE("R_EFLAGS",	offsetof(struct i386_saved_state *, efl));
	DECLARE("R_EIP",	offsetof(struct i386_saved_state *, eip));
	DECLARE("R_CR2",	offsetof(struct i386_saved_state *, cr2));
	DECLARE("ISS_SIZE",	sizeof (struct i386_saved_state));

        DECLARE("I_ECX",	offsetof(struct i386_interrupt_state *, ecx));
	DECLARE("I_EIP",	offsetof(struct i386_interrupt_state *, eip));
	DECLARE("I_CS",		offsetof(struct i386_interrupt_state *, cs));
	DECLARE("I_EFL",	offsetof(struct i386_interrupt_state *, efl));

	DECLARE("NBPG",			I386_PGBYTES);
	DECLARE("VM_MIN_ADDRESS",	VM_MIN_ADDRESS);
	DECLARE("VM_MAX_ADDRESS",	VM_MAX_ADDRESS);
	DECLARE("KERNELBASE",		VM_MIN_KERNEL_ADDRESS);
	DECLARE("LINEAR_KERNELBASE",	LINEAR_KERNEL_ADDRESS);
	DECLARE("KERNEL_STACK_SIZE",	KERNEL_STACK_SIZE);

	DECLARE("PDESHIFT",	PDESHIFT);
	DECLARE("PTESHIFT",	PTESHIFT);
	DECLARE("PTEMASK",	PTEMASK);

	DECLARE("PTE_PFN",	INTEL_PTE_PFN);
	DECLARE("PTE_V",	INTEL_PTE_VALID);
	DECLARE("PTE_W",	INTEL_PTE_WRITE);
	DECLARE("PTE_INVALID",	~INTEL_PTE_VALID);

	DECLARE("IDTSZ",	IDTSZ);
	DECLARE("GDTSZ",	GDTSZ);
	DECLARE("LDTSZ",	LDTSZ);

	DECLARE("KERNEL_CS",	KERNEL_CS);
	DECLARE("KERNEL_DS",	KERNEL_DS);
	DECLARE("USER_CS",	USER_CS);
	DECLARE("USER_DS",	USER_DS);
	DECLARE("KERNEL_TSS",	KERNEL_TSS);
	DECLARE("KERNEL_LDT",	KERNEL_LDT);
#if	MACH_KDB
	DECLARE("DEBUG_TSS",	DEBUG_TSS);
#endif	/* MACH_KDB */

        DECLARE("CPU_DATA",	CPU_DATA);
        DECLARE("CPD_ACTIVE_THREAD",
		offsetof(cpu_data_t *, active_thread));
#if	MACH_RT
        DECLARE("CPD_PREEMPTION_LEVEL",
		offsetof(cpu_data_t *, preemption_level));
#endif	/* MACH_RT */
        DECLARE("CPD_INTERRUPT_LEVEL",
		offsetof(cpu_data_t *, interrupt_level));
        DECLARE("CPD_SIMPLE_LOCK_COUNT",
		offsetof(cpu_data_t *,simple_lock_count));

	DECLARE("PTES_PER_PAGE",	NPTES);
	DECLARE("INTEL_PTE_KERNEL",	INTEL_PTE_VALID|INTEL_PTE_WRITE);

	DECLARE("KERNELBASEPDE",
		(LINEAR_KERNEL_ADDRESS >> PDESHIFT) *
		sizeof(pt_entry_t));

	DECLARE("TSS_ESP0",	offsetof(struct i386_tss *, esp0));
	DECLARE("TSS_SS0",	offsetof(struct i386_tss *, ss0));
	DECLARE("TSS_LDT",	offsetof(struct i386_tss *, ldt));
	DECLARE("TSS_PDBR",	offsetof(struct i386_tss *, cr3));
	DECLARE("TSS_LINK",	offsetof(struct i386_tss *, back_link));

	DECLARE("K_TASK_GATE",	ACC_P|ACC_PL_K|ACC_TASK_GATE);
	DECLARE("K_TRAP_GATE",	ACC_P|ACC_PL_K|ACC_TRAP_GATE);
	DECLARE("U_TRAP_GATE",	ACC_P|ACC_PL_U|ACC_TRAP_GATE);
	DECLARE("K_INTR_GATE",	ACC_P|ACC_PL_K|ACC_INTR_GATE);
	DECLARE("K_TSS",	ACC_P|ACC_PL_K|ACC_TSS);

	/*
	 *	usimple_lock fields
	 */
	DECLARE("USL_INTERLOCK",	offsetof(usimple_lock_t, interlock));

	DECLARE("INTSTACK_SIZE",	INTSTACK_SIZE);
#if	NCPUS > 1
	DECLARE("MP_GDT",	   offsetof(struct mp_desc_table *, gdt[0]));
	DECLARE("MP_IDT",	   offsetof(struct mp_desc_table *, idt[0]));
#endif	/* NCPUS > 1 */
#if	!STAT_TIME
	DECLARE("LOW_BITS",	   offsetof(struct timer *, low_bits));
	DECLARE("HIGH_BITS",	   offsetof(struct timer *, high_bits));
	DECLARE("HIGH_BITS_CHECK", offsetof(struct timer *, high_bits_check));
	DECLARE("TIMER_HIGH_UNIT", TIMER_HIGH_UNIT);
	DECLARE("TH_SYS_TIMER",    offsetof(struct timer *, system_timer));
	DECLARE("TH_USER_TIMER",   offsetof(struct timer *, user_timer));
#endif

	return (0);
}


/* Dummy to keep linker quiet */
void
kernel_preempt_check(void)
{
}
Commit	Line	Data
1c79356b A	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>
1c79356b A	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>
1c79356b A	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
1c79356b A	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	}