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freebsd-dev/sys/sparc64/include/db_machdep.h

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Use the correct copyrights. Note where most of this came from. Requested by: obrien
2001-09-03 22:27:23 +00:00
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
*
Use the correct copyrights. Note where most of this came from. Requested by: obrien
2001-09-03 22:27:23 +00:00
* 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.
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
*
Use the correct copyrights. Note where most of this came from. Requested by: obrien
2001-09-03 22:27:23 +00:00
* 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.
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
*
Use the correct copyrights. Note where most of this came from. Requested by: obrien
2001-09-03 22:27:23 +00:00
* 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.
*
* from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
* $FreeBSD$
*/
#ifndef _MACHINE_DB_MACHDEP_H_
#define _MACHINE_DB_MACHDEP_H_
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
#include <machine/frame.h>
#include <machine/trap.h>
#define BYTE_MSF (1)
typedef vm_offset_t db_addr_t;
db_expr_t is signed.
2001-08-20 23:35:15 +00:00
typedef long db_expr_t;
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
typedef struct trapframe db_regs_t;
extern db_regs_t ddb_regs;
#define DDB_REGS (&ddb_regs)
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_tpc)
#define BKPT_INST (0)
#define BKPT_SIZE (4)
#define BKPT_SET(inst) (BKPT_INST)
1. Remove kdbframe. Bad idea. 2. Add a TF_DONE macro, which fiddles a trapframe to make the retry on return from traps act like a done (advance past the trapping instruction instead of re-executing). 3. Flush the windows before entering the debugger, since it is no longer done in the breakpoint trap vector. 4. Print a warning if trace <pid> is attempted, it is not yet implemented. 5. Print traps better and decode system calls in traces. Submitted by: rwatson (4)
2001-11-18 03:41:12 +00:00
#define BKPT_SKIP do { \
ddb_regs.tf_tpc = ddb_regs.tf_tnpc + 4; \
ddb_regs.tf_tnpc += 8; \
} while (0)
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
#define db_clear_single_step(regs)
#define db_set_single_step(regs)
#define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT)
#define IS_WATCHPOINT_TRAP(type, code) (0)
#define inst_trap_return(ins) (0)
#define inst_return(ins) (0)
#define inst_call(ins) (0)
#define inst_load(ins) (0)
#define inst_store(ins) (0)
#define DB_SMALL_VALUE_MAX (0x7fffffff)
#define DB_SMALL_VALUE_MIN (-0x40001)
#define DB_ELFSIZE 64
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
#endif /* !_MACHINE_DB_MACHDEP_H_ */
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