163 lines
4.3 KiB
C
163 lines
4.3 KiB
C
/* $NetBSD: db_machdep.h,v 1.12 2001/07/07 15:16:13 eeh Exp $ */
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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#ifndef _SPARC_DB_MACHDEP_H_
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#define _SPARC_DB_MACHDEP_H_
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/*
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* Machine-dependent defines for new kernel debugger.
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*/
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#include <uvm/uvm_extern.h>
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#include <machine/frame.h>
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#include <machine/psl.h>
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#include <machine/trap.h>
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#include <machine/reg.h>
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/* end of mangling */
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typedef vaddr_t db_addr_t; /* address - unsigned */
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typedef long db_expr_t; /* expression - signed */
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struct trapstate {
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int64_t tstate;
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int64_t tpc;
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int64_t tnpc;
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int64_t tt;
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};
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#if 1
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typedef struct {
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struct trapframe64 ddb_tf;
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struct frame64 ddb_fr;
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struct trapstate ddb_ts[5];
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int ddb_tl;
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struct fpstate64 ddb_fpstate;
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} db_regs_t;
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#else
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typedef struct db_regs {
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struct trapregs dbr_traps[4];
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int dbr_y;
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char dbr_tl;
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char dbr_canrestore;
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char dbr_cansave;
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char dbr_cleanwin;
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char dbr_cwp;
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char dbr_wstate;
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int64_t dbr_g[8];
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int64_t dbr_ag[8];
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int64_t dbr_ig[8];
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int64_t dbr_mg[8];
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int64_t dbr_out[8];
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int64_t dbr_local[8];
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int64_t dbr_in[8];
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} db_regs_t;
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#endif
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db_regs_t ddb_regs; /* register state */
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#define DDB_REGS (&ddb_regs)
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#define DDB_TF (&ddb_regs.ddb_tf)
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#define DDB_FR (&ddb_regs.ddb_fr)
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#define DDB_FP (&ddb_regs.ddb_fpstate)
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#if defined(lint)
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#define PC_REGS(regs) ((regs)->ddb_tf.tf_pc)
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#else
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#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc)
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#endif
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#define PC_ADVANCE(regs) do { \
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vaddr_t n = (regs)->ddb_tf.tf_npc; \
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(regs)->ddb_tf.tf_pc = n; \
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(regs)->ddb_tf.tf_npc = n + 4; \
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} while(0)
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#define BKPT_INST 0x91d02001 /* breakpoint instruction */
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#define BKPT_SIZE (4) /* size of breakpoint inst */
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#define BKPT_SET(inst) (BKPT_INST)
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#define IS_BREAKPOINT_TRAP(type, code) \
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((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
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#define IS_WATCHPOINT_TRAP(type, code) \
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((type) ==T_PA_WATCHPT || (type) == T_VA_WATCHPT)
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/*
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* Sparc cpus have no hardware single-step.
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*/
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#define SOFTWARE_SSTEP
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boolean_t db_inst_trap_return __P((int inst));
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boolean_t db_inst_return __P((int inst));
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boolean_t db_inst_call __P((int inst));
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boolean_t db_inst_branch __P((int inst));
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int db_inst_load __P((int inst));
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int db_inst_store __P((int inst));
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boolean_t db_inst_unconditional_flow_transfer __P((int inst));
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db_addr_t db_branch_taken __P((int inst, db_addr_t pc, db_regs_t *regs));
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#define inst_trap_return(ins) db_inst_trap_return(ins)
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#define inst_return(ins) db_inst_return(ins)
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#define inst_call(ins) db_inst_call(ins)
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#define inst_branch(ins) db_inst_branch(ins)
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#define inst_load(ins) db_inst_load(ins)
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#define inst_store(ins) db_inst_store(ins)
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#define inst_unconditional_flow_transfer(ins) \
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db_inst_unconditional_flow_transfer(ins)
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#define branch_taken(ins, pc, regs) \
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db_branch_taken((ins), (pc), (regs))
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/* see note in db_interface.c about reversed breakpoint addrs */
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#define next_instr_address(pc, bd) \
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((bd) ? (pc) : ddb_regs.ddb_tf.tf_npc)
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#define DB_MACHINE_COMMANDS
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void db_machine_init __P((void));
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int kdb_trap __P((int, struct trapframe64 *));
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/*
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* We will use elf symbols in DDB when they work.
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*/
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#if 1
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#define DB_ELF_SYMBOLS
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#ifdef __arch64__
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#define DB_ELFSIZE 64
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#else
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#define DB_ELFSIZE 32
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#endif
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#else
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#define DB_AOUT_SYMBOLS
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#endif
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/*
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* KGDB definitions
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*/
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typedef u_long kgdb_reg_t;
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#define KGDB_NUMREGS 72
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#define KGDB_BUFLEN 1024
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#endif /* _SPARC_DB_MACHDEP_H_ */
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