131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
|
/* $NetBSD: db_machdep.h,v 1.18 2012/02/16 02:26:35 christos Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 1996 Scott K Stevens
|
||
|
|
*
|
||
|
|
* 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 _ARM_DB_MACHDEP_H_
|
||
|
|
#define _ARM_DB_MACHDEP_H_
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Machine-dependent defines for new kernel debugger.
|
||
|
|
*/
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <uvm/uvm_extern.h>
|
||
|
|
#include <arm/armreg.h>
|
||
|
|
#include <machine/frame.h>
|
||
|
|
#include <machine/trap.h>
|
||
|
|
|
||
|
|
/* end of mangling */
|
||
|
|
|
||
|
|
typedef vaddr_t db_addr_t; /* address - unsigned */
|
||
|
|
#define DDB_EXPR_FMT "l" /* expression is long */
|
||
|
|
typedef long db_expr_t; /* expression - signed */
|
||
|
|
|
||
|
|
typedef trapframe_t db_regs_t;
|
||
|
|
|
||
|
|
extern db_regs_t ddb_regs; /* register state */
|
||
|
|
#define DDB_REGS (&ddb_regs)
|
||
|
|
|
||
|
|
#ifdef __PROG26
|
||
|
|
#define PC_REGS(regs) ((regs)->tf_r15 & R15_PC)
|
||
|
|
#define PC_ADVANCE(regs) ((regs)->tf_r15 += BKPT_SIZE)
|
||
|
|
#else
|
||
|
|
#define PC_REGS(regs) ((regs)->tf_pc)
|
||
|
|
#define PC_ADVANCE(r) ((r)->tf_r15 += BKPT_SIZE)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define BKPT_ADDR(addr) (addr) /* breakpoint address */
|
||
|
|
#if defined(DDB)
|
||
|
|
#define BKPT_INST (KERNEL_BREAKPOINT) /* breakpoint instruction */
|
||
|
|
#else
|
||
|
|
/* breakpoint instruction if we use KGDB, this is used in db_set_temp_breakpoint() */
|
||
|
|
#define BKPT_INST (GDB5_BREAKPOINT)
|
||
|
|
#endif
|
||
|
|
#define BKPT_SIZE (INSN_SIZE) /* size of breakpoint inst */
|
||
|
|
#define BKPT_SET(inst, addr) (BKPT_INST)
|
||
|
|
|
||
|
|
/*#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_pc -= BKPT_SIZE)*/
|
||
|
|
|
||
|
|
#define T_FAULT (0)
|
||
|
|
#define T_BREAKPOINT (1)
|
||
|
|
|
||
|
|
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
|
||
|
|
#define IS_WATCHPOINT_TRAP(type, code) (0)
|
||
|
|
|
||
|
|
#define inst_trap_return(ins) (0)
|
||
|
|
/* ldmxx reg, {..., pc}
|
||
|
|
01800000 stack mode
|
||
|
|
000f0000 register
|
||
|
|
0000ffff register list */
|
||
|
|
/* mov pc, reg
|
||
|
|
0000000f register */
|
||
|
|
#define inst_return(ins) (((ins) & 0x0e108000) == 0x08108000 || \
|
||
|
|
((ins) & 0x0ff0fff0) == 0x01a0f000)
|
||
|
|
/* bl ...
|
||
|
|
00ffffff offset>>2 */
|
||
|
|
#define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000)
|
||
|
|
/* b ...
|
||
|
|
00ffffff offset>>2 */
|
||
|
|
/* ldr pc, [pc, reg, lsl #2]
|
||
|
|
0000000f register */
|
||
|
|
#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000 || \
|
||
|
|
((ins) & 0x0fdffff0) == 0x079ff100 || \
|
||
|
|
((ins) & 0x0ff0f000) == 0x0590f000)
|
||
|
|
#define inst_load(ins) (0)
|
||
|
|
#define inst_store(ins) (0)
|
||
|
|
#define inst_unconditional_flow_transfer(ins) \
|
||
|
|
((((ins) & INSN_COND_MASK) == INSN_COND_AL) && \
|
||
|
|
(inst_branch(ins) || inst_call(ins) || inst_return(ins)))
|
||
|
|
|
||
|
|
#define getreg_val (0)
|
||
|
|
#define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + INSN_SIZE))
|
||
|
|
|
||
|
|
#define DB_MACHINE_COMMANDS
|
||
|
|
|
||
|
|
#define SOFTWARE_SSTEP
|
||
|
|
|
||
|
|
u_int branch_taken(u_int insn, u_int pc, db_regs_t *db_regs);
|
||
|
|
int kdb_trap(int, db_regs_t *);
|
||
|
|
void db_machine_init(void);
|
||
|
|
int db_validate_address(vm_offset_t addr);
|
||
|
|
|
||
|
|
#define DB_ELF_SYMBOLS
|
||
|
|
#define DB_ELFSIZE 32
|
||
|
|
|
||
|
|
/*
|
||
|
|
* kgdb
|
||
|
|
*/
|
||
|
|
typedef register_t kgdb_reg_t;
|
||
|
|
#define KGDB_NUMREGS (16 + 8*3 + 2) /* r0..r15, f0..f7, fps, cpsr
|
||
|
|
* fp-registers are 12 bytes wide */
|
||
|
|
#define KGDB_REGNUM_R0 0
|
||
|
|
#define KGDB_REGNUM_SPSR 16 + 8*3 + 1
|
||
|
|
#define KGDB_BUFLEN 1024
|
||
|
|
|
||
|
|
#endif /* _ARM_DB_MACHDEP_H_ */
|