diff options
Diffstat (limited to 'sys/arch/sparc64')
| -rw-r--r-- | sys/arch/sparc64/include/db_machdep.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/sys/arch/sparc64/include/db_machdep.h b/sys/arch/sparc64/include/db_machdep.h new file mode 100644 index 00000000000..c693ff80de5 --- /dev/null +++ b/sys/arch/sparc64/include/db_machdep.h @@ -0,0 +1,163 @@ +/* $NetBSD: db_machdep.h,v 1.12 2001/07/07 15:16:13 eeh Exp $ */ + +/* + * 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. + */ + +#ifndef _SPARC_DB_MACHDEP_H_ +#define _SPARC_DB_MACHDEP_H_ + +/* + * Machine-dependent defines for new kernel debugger. + */ + +#include <vm/vm.h> +#include <uvm/uvm_extern.h> + +#include <machine/frame.h> +#include <machine/psl.h> +#include <machine/trap.h> +#include <machine/reg.h> + +/* end of mangling */ + +typedef vaddr_t db_addr_t; /* address - unsigned */ +typedef long db_expr_t; /* expression - signed */ + +struct trapstate { + int64_t tstate; + int64_t tpc; + int64_t tnpc; + int64_t tt; +}; +#if 1 +typedef struct { + struct trapframe64 ddb_tf; + struct frame64 ddb_fr; + struct trapstate ddb_ts[5]; + int ddb_tl; + struct fpstate64 ddb_fpstate; +} db_regs_t; +#else +typedef struct db_regs { + struct trapregs dbr_traps[4]; + int dbr_y; + char dbr_tl; + char dbr_canrestore; + char dbr_cansave; + char dbr_cleanwin; + char dbr_cwp; + char dbr_wstate; + int64_t dbr_g[8]; + int64_t dbr_ag[8]; + int64_t dbr_ig[8]; + int64_t dbr_mg[8]; + int64_t dbr_out[8]; + int64_t dbr_local[8]; + int64_t dbr_in[8]; +} db_regs_t; +#endif + +db_regs_t ddb_regs; /* register state */ +#define DDB_REGS (&ddb_regs) +#define DDB_TF (&ddb_regs.ddb_tf) +#define DDB_FR (&ddb_regs.ddb_fr) +#define DDB_FP (&ddb_regs.ddb_fpstate) + +#if defined(lint) +#define PC_REGS(regs) ((regs)->ddb_tf.tf_pc) +#else +#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc) +#endif +#define PC_ADVANCE(regs) do { \ + vaddr_t n = (regs)->ddb_tf.tf_npc; \ + (regs)->ddb_tf.tf_pc = n; \ + (regs)->ddb_tf.tf_npc = n + 4; \ +} while(0) + +#define BKPT_INST 0x91d02001 /* breakpoint instruction */ +#define BKPT_SIZE (4) /* size of breakpoint inst */ +#define BKPT_SET(inst) (BKPT_INST) + +#define IS_BREAKPOINT_TRAP(type, code) \ + ((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC) +#define IS_WATCHPOINT_TRAP(type, code) \ + ((type) ==T_PA_WATCHPT || (type) == T_VA_WATCHPT) + +/* + * Sparc cpus have no hardware single-step. + */ +#define SOFTWARE_SSTEP + +boolean_t db_inst_trap_return __P((int inst)); +boolean_t db_inst_return __P((int inst)); +boolean_t db_inst_call __P((int inst)); +boolean_t db_inst_branch __P((int inst)); +int db_inst_load __P((int inst)); +int db_inst_store __P((int inst)); +boolean_t db_inst_unconditional_flow_transfer __P((int inst)); +db_addr_t db_branch_taken __P((int inst, db_addr_t pc, db_regs_t *regs)); + +#define inst_trap_return(ins) db_inst_trap_return(ins) +#define inst_return(ins) db_inst_return(ins) +#define inst_call(ins) db_inst_call(ins) +#define inst_branch(ins) db_inst_branch(ins) +#define inst_load(ins) db_inst_load(ins) +#define inst_store(ins) db_inst_store(ins) +#define inst_unconditional_flow_transfer(ins) \ + db_inst_unconditional_flow_transfer(ins) +#define branch_taken(ins, pc, regs) \ + db_branch_taken((ins), (pc), (regs)) + +/* see note in db_interface.c about reversed breakpoint addrs */ +#define next_instr_address(pc, bd) \ + ((bd) ? (pc) : ddb_regs.ddb_tf.tf_npc) + +#define DB_MACHINE_COMMANDS + +void db_machine_init __P((void)); +int kdb_trap __P((int, struct trapframe64 *)); + +/* + * We will use elf symbols in DDB when they work. + */ +#if 1 +#define DB_ELF_SYMBOLS +#ifdef __arch64__ +#define DB_ELFSIZE 64 +#else +#define DB_ELFSIZE 32 +#endif +#else +#define DB_AOUT_SYMBOLS +#endif +/* + * KGDB definitions + */ +typedef u_long kgdb_reg_t; +#define KGDB_NUMREGS 72 +#define KGDB_BUFLEN 1024 + +#endif /* _SPARC_DB_MACHDEP_H_ */ |