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📄 _types.h(87 B)
📄 acpica_machdep.h(95 B)
📄 apm_bios.h(89 B)
📄 apm_segments.h(1.16 KB)
📄 asm.h(4.01 KB)
📄 asmacros.h(8.5 KB)
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📄 bus.h(84 B)
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📄 clock.h(853 B)
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📄 cpu.h(2.99 KB)
📄 cpufunc.h(15.05 KB)
📄 cputypes.h(2.64 KB)
📄 cserial.h(14.25 KB)
📄 db_machdep.h(2.87 KB)
📄 dump.h(85 B)
📄 efi.h(322 B)
📄 elan_mmcr.h(7.09 KB)
📄 elf.h(84 B)
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📄 exec.h(1.76 KB)
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📄 float.h(86 B)
📄 floatingpoint.h(2.01 KB)
📄 fpu.h(87 B)
📄 frame.h(1.98 KB)
📄 gdb_machdep.h(1.89 KB)
📄 ieeefp.h(6.83 KB)
📄 in_cksum.h(3.98 KB)
📄 intr_machdep.h(93 B)
📄 iodev.h(1.81 KB)
📄 iommu.h(121 B)
📄 kdb.h(1.85 KB)
📄 limits.h(1.9 KB)
📄 md_var.h(3.41 KB)
📄 memdev.h(1.6 KB)
📄 metadata.h(89 B)
📄 minidump.h(1.71 KB)
📄 mp_watchdog.h(1.53 KB)
📄 nexusvar.h(1.76 KB)
📄 npx.h(3.39 KB)
📄 ofw_machdep.h(92 B)
📄 param.h(5.17 KB)
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📄 pcb.h(3.61 KB)
📄 pcb_ext.h(1.88 KB)
📄 pci_cfgreg.h(91 B)
📄 pcpu.h(7.63 KB)
📄 pcpu_aux.h(2.3 KB)
📄 perfmon.h(7.25 KB)
📄 pmap.h(9.9 KB)
📄 pmap_base.h(5.33 KB)
📄 pmap_nopae.h(3.62 KB)
📄 pmap_pae.h(5.18 KB)
📄 pmc_mdep.h(5.51 KB)
📄 ppireg.h(1.88 KB)
📄 proc.h(2.92 KB)
📄 procctl.h(88 B)
📄 profile.h(5.53 KB)
📄 psl.h(84 B)
📄 ptrace.h(87 B)
📄 pvclock.h(88 B)
📄 reg.h(84 B)
📄 reloc.h(2.26 KB)
📄 resource.h(1.93 KB)
📄 runq.h(1.85 KB)
📄 segments.h(3.59 KB)
📄 setjmp.h(87 B)
📄 sf_buf.h(1.62 KB)
📄 sigframe.h(2.9 KB)
📄 signal.h(2.28 KB)
📄 smapi.h(2.57 KB)
📄 smp.h(1.16 KB)
📄 speaker.h(291 B)
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📄 stack.h(85 B)
📄 stdarg.h(87 B)
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📄 timerreg.h(2.05 KB)
📄 trap.h(85 B)
📄 tss.h(3.13 KB)
📄 ucontext.h(2.34 KB)
📄 vdso.h(85 B)
📄 vm.h(2.02 KB)
📄 vm86.h(4.53 KB)
📄 vmparam.h(7.59 KB)
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Editing: db_machdep.h

/*-
 * 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.
 *
 * $FreeBSD$
 */

#ifndef _MACHINE_DB_MACHDEP_H_
#define	_MACHINE_DB_MACHDEP_H_

#include <machine/frame.h>
#include <machine/reg.h>
#include <machine/trap.h>

typedef	vm_offset_t	db_addr_t;	/* address - unsigned */
typedef	int		db_expr_t;	/* expression - signed */

#define	PC_REGS()	((db_addr_t)(kdb_frame->tf_eflags & PSL_VM ?	\
			    (kdb_frame->tf_eip & 0xffff) +		\
			    ((kdb_frame->tf_cs & 0xffff) << 4) :	\
			    kdb_frame->tf_eip))

#define	BKPT_INST	0xcc		/* breakpoint instruction */
#define	BKPT_SIZE	(1)		/* size of breakpoint inst */
#define	BKPT_SET(inst)	(BKPT_INST)

#define BKPT_SKIP				\
do {						\
	kdb_frame->tf_eip += 1;			\
	kdb_thrctx->pcb_eip += 1;		\
} while(0)

#define	FIXUP_PC_AFTER_BREAK			\
do {						\
	kdb_frame->tf_eip -= 1;			\
	kdb_thrctx->pcb_eip -= 1;		\
} while(0);

#define	db_clear_single_step	kdb_cpu_clear_singlestep
#define	db_set_single_step	kdb_cpu_set_singlestep

/*
 * The debug exception type is copied from %dr6 to 'code' and used to
 * disambiguate single step traps.  Watchpoints have no special support.
 * Our hardware breakpoints are not well integrated with ddb and are too
 * different from watchpoints.  ddb treats them as unknown traps with
 * unknown addresses and doesn't turn them off while it is running.
 */
#define	IS_BREAKPOINT_TRAP(type, code)	((type) == T_BPTFLT)
#define	IS_SSTEP_TRAP(type, code)					\
	((type) == T_TRCTRAP && (code) & DBREG_DR6_BS)
#define	IS_WATCHPOINT_TRAP(type, code)	0

#define	I_CALL		0xe8
#define	I_CALLI		0xff
#define	I_RET		0xc3
#define	I_IRET		0xcf

#define	inst_trap_return(ins)	(((ins)&0xff) == I_IRET)
#define	inst_return(ins)	(((ins)&0xff) == I_RET)
#define	inst_call(ins)		(((ins)&0xff) == I_CALL || \
				 (((ins)&0xff) == I_CALLI && \
				  ((ins)&0x3800) == 0x1000))
#define inst_load(ins)		0
#define inst_store(ins)		0

int	db_segsize(struct trapframe *tfp);

#endif /* !_MACHINE_DB_MACHDEP_H_ */

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Editing: db_machdep.h

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