1999-04-16 03:35:26 +02:00
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/* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger.
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1999-07-05 19:58:44 +02:00
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Copyright 1994, 1995, 1996, 1999 Free Software Foundation, Inc.
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1999-04-16 03:35:26 +02:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "breakpoint.h"
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#include "target.h"
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#include "serial.h"
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#include <sys/types.h>
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1999-07-05 19:58:44 +02:00
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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1999-04-16 03:35:26 +02:00
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#if (!defined(__GO32__) && !defined(_WIN32)) || defined(__CYGWIN32__)
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#define HAVE_SOCKETS
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#include <sys/time.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#endif
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extern struct target_ops sparclite_ops; /* Forward decl */
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extern struct target_ops remote_ops;
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static char *remote_target_name = NULL;
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static serial_t remote_desc = NULL;
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static int serial_flag;
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#ifdef HAVE_SOCKETS
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static int udp_fd = -1;
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#endif
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static serial_t open_tty PARAMS ((char *name));
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static int send_resp PARAMS ((serial_t desc, char c));
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static void close_tty PARAMS ((int ignore));
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#ifdef HAVE_SOCKETS
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static int recv_udp_buf PARAMS ((int fd, unsigned char *buf, int len, int timeout));
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static int send_udp_buf PARAMS ((int fd, unsigned char *buf, int len));
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#endif
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static void sparclite_open PARAMS ((char *name, int from_tty));
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static void sparclite_close PARAMS ((int quitting));
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static void download PARAMS ((char *target_name, char *args, int from_tty,
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void (*write_routine) (bfd *from_bfd,
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asection *from_sec,
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file_ptr from_addr,
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bfd_vma to_addr, int len),
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void (*start_routine) (bfd_vma entry)));
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static void sparclite_serial_start PARAMS ((bfd_vma entry));
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static void sparclite_serial_write PARAMS ((bfd *from_bfd, asection *from_sec,
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file_ptr from_addr,
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bfd_vma to_addr, int len));
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#ifdef HAVE_SOCKETS
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static unsigned short calc_checksum PARAMS ((unsigned char *buffer,
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int count));
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static void sparclite_udp_start PARAMS ((bfd_vma entry));
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static void sparclite_udp_write PARAMS ((bfd *from_bfd, asection *from_sec,
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file_ptr from_addr, bfd_vma to_addr,
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int len));
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#endif
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static void sparclite_download PARAMS ((char *filename, int from_tty));
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#define DDA2_SUP_ASI 0xb000000
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#define DDA1_SUP_ASI 0xb0000
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#define DDA2_ASI_MASK 0xff000000
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#define DDA1_ASI_MASK 0xff0000
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#define DIA2_SUP_MODE 0x8000
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#define DIA1_SUP_MODE 0x4000
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#define DDA2_ENABLE 0x100
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#define DDA1_ENABLE 0x80
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#define DIA2_ENABLE 0x40
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#define DIA1_ENABLE 0x20
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#define DSINGLE_STEP 0x10 /* not used */
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#define DDV_TYPE_MASK 0xc
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#define DDV_TYPE_LOAD 0x0
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#define DDV_TYPE_STORE 0x4
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#define DDV_TYPE_ACCESS 0x8
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#define DDV_TYPE_ALWAYS 0xc
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#define DDV_COND 0x2
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#define DDV_MASK 0x1
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int
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sparclite_insert_watchpoint (addr, len, type)
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CORE_ADDR addr;
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int len;
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int type;
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{
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CORE_ADDR dcr;
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dcr = read_register (DCR_REGNUM);
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if (!(dcr & DDA1_ENABLE))
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{
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write_register (DDA1_REGNUM, addr);
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dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK);
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dcr |= (DDA1_SUP_ASI | DDA1_ENABLE);
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if (type == 1)
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK));
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}
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else if (type == 0)
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK));
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}
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else
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_ACCESS);
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}
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write_register (DCR_REGNUM, dcr);
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}
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else if (!(dcr & DDA2_ENABLE))
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{
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write_register (DDA2_REGNUM, addr);
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dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK);
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dcr |= (DDA2_SUP_ASI | DDA2_ENABLE);
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if (type == 1)
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK);
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}
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else if (type == 0)
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK);
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}
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else
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{
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write_register (DDV1_REGNUM, 0);
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write_register (DDV2_REGNUM, 0xffffffff);
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dcr |= (DDV_TYPE_ACCESS);
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}
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write_register (DCR_REGNUM, dcr);
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}
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else
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return -1;
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return 0;
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}
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int
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sparclite_remove_watchpoint (addr, len, type)
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CORE_ADDR addr;
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int len;
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int type;
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{
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CORE_ADDR dcr, dda1, dda2;
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dcr = read_register (DCR_REGNUM);
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dda1 = read_register (DDA1_REGNUM);
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dda2 = read_register (DDA2_REGNUM);
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if ((dcr & DDA1_ENABLE) && addr == dda1)
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write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE));
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else if ((dcr & DDA2_ENABLE) && addr == dda2)
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write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE));
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else
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return -1;
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return 0;
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}
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int
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sparclite_insert_hw_breakpoint (addr, len)
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CORE_ADDR addr;
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int len;
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{
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CORE_ADDR dcr;
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dcr = read_register (DCR_REGNUM);
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if (!(dcr & DIA1_ENABLE))
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{
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write_register (DIA1_REGNUM, addr);
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write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE));
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}
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else if (!(dcr & DIA2_ENABLE))
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{
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write_register (DIA2_REGNUM, addr);
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write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE));
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}
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else
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return -1;
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return 0;
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}
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int
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sparclite_remove_hw_breakpoint (addr, shadow)
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CORE_ADDR addr;
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int shadow;
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{
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CORE_ADDR dcr, dia1, dia2;
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dcr = read_register (DCR_REGNUM);
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dia1 = read_register (DIA1_REGNUM);
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dia2 = read_register (DIA2_REGNUM);
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if ((dcr & DIA1_ENABLE) && addr == dia1)
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write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE));
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else if ((dcr & DIA2_ENABLE) && addr == dia2)
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write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE));
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else
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return -1;
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return 0;
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}
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int
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sparclite_check_watch_resources (type, cnt, ot)
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int type;
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int cnt;
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int ot;
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{
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/* Watchpoints not supported on simulator. */
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if (strcmp (target_shortname, "sim") == 0)
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return 0;
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if (type == bp_hardware_breakpoint)
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{
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if (TARGET_HW_BREAK_LIMIT == 0)
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return 0;
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else if (cnt <= TARGET_HW_BREAK_LIMIT)
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return 1;
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}
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else
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{
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if (TARGET_HW_WATCH_LIMIT == 0)
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return 0;
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else if (ot)
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return -1;
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else if (cnt <= TARGET_HW_WATCH_LIMIT)
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return 1;
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}
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return -1;
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}
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CORE_ADDR
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sparclite_stopped_data_address ()
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{
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CORE_ADDR dsr, dda1, dda2;
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dsr = read_register (DSR_REGNUM);
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dda1 = read_register (DDA1_REGNUM);
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dda2 = read_register (DDA2_REGNUM);
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if (dsr & 0x10)
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return dda1;
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else if (dsr & 0x20)
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return dda2;
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else
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return 0;
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}
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static serial_t
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open_tty (name)
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char *name;
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{
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serial_t desc;
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desc = SERIAL_OPEN (name);
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if (!desc)
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perror_with_name (name);
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if (baud_rate != -1)
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{
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if (SERIAL_SETBAUDRATE (desc, baud_rate))
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{
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SERIAL_CLOSE (desc);
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perror_with_name (name);
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}
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}
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SERIAL_RAW (desc);
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SERIAL_FLUSH_INPUT (desc);
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return desc;
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}
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/* Read a single character from the remote end, masking it down to 7 bits. */
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static int
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readchar (desc, timeout)
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serial_t desc;
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int timeout;
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{
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int ch;
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char s[10];
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ch = SERIAL_READCHAR (desc, timeout);
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switch (ch)
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{
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case SERIAL_EOF:
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error ("SPARClite remote connection closed");
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case SERIAL_ERROR:
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perror_with_name ("SPARClite communication error");
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case SERIAL_TIMEOUT:
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error ("SPARClite remote timeout");
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default:
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if (remote_debug > 0)
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{
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sprintf (s, "[%02x]", ch & 0xff);
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puts_debug ("read -->", s, "<--");
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}
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|
|
|
return ch;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
debug_serial_write (desc, buf, len)
|
|
|
|
|
serial_t desc;
|
|
|
|
|
char *buf;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
char s[10];
|
|
|
|
|
|
|
|
|
|
SERIAL_WRITE (desc, buf, len);
|
|
|
|
|
if (remote_debug > 0)
|
|
|
|
|
{
|
|
|
|
|
while (len-- > 0)
|
|
|
|
|
{
|
|
|
|
|
sprintf (s, "[%02x]", *buf & 0xff);
|
|
|
|
|
puts_debug ("Sent -->", s, "<--");
|
|
|
|
|
buf++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
send_resp (desc, c)
|
|
|
|
|
serial_t desc;
|
|
|
|
|
char c;
|
|
|
|
|
{
|
|
|
|
|
debug_serial_write (desc, &c, 1);
|
|
|
|
|
return readchar (desc, remote_timeout);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
close_tty (ignore)
|
|
|
|
|
int ignore;
|
|
|
|
|
{
|
|
|
|
|
if (!remote_desc)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
SERIAL_CLOSE (remote_desc);
|
|
|
|
|
|
|
|
|
|
remote_desc = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_SOCKETS
|
|
|
|
|
static int
|
|
|
|
|
recv_udp_buf (fd, buf, len, timeout)
|
|
|
|
|
int fd, len;
|
|
|
|
|
unsigned char *buf;
|
|
|
|
|
int timeout;
|
|
|
|
|
{
|
|
|
|
|
int cc;
|
|
|
|
|
fd_set readfds;
|
|
|
|
|
|
|
|
|
|
FD_ZERO (&readfds);
|
|
|
|
|
FD_SET (fd, &readfds);
|
|
|
|
|
|
|
|
|
|
if (timeout >= 0)
|
|
|
|
|
{
|
|
|
|
|
struct timeval timebuf;
|
|
|
|
|
|
|
|
|
|
timebuf.tv_sec = timeout;
|
|
|
|
|
timebuf.tv_usec = 0;
|
|
|
|
|
cc = select (fd + 1, &readfds, 0, 0, &timebuf);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
cc = select (fd + 1, &readfds, 0, 0, 0);
|
|
|
|
|
|
|
|
|
|
if (cc == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (cc != 1)
|
|
|
|
|
perror_with_name ("recv_udp_buf: Bad return value from select:");
|
|
|
|
|
|
|
|
|
|
cc = recv (fd, buf, len, 0);
|
|
|
|
|
|
|
|
|
|
if (cc < 0)
|
|
|
|
|
perror_with_name ("Got an error from recv: ");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
send_udp_buf (fd, buf, len)
|
|
|
|
|
int fd, len;
|
|
|
|
|
unsigned char *buf;
|
|
|
|
|
{
|
|
|
|
|
int cc;
|
|
|
|
|
|
|
|
|
|
cc = send (fd, buf, len, 0);
|
|
|
|
|
|
|
|
|
|
if (cc == len)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (cc < 0)
|
|
|
|
|
perror_with_name ("Got an error from send: ");
|
|
|
|
|
|
|
|
|
|
error ("Short count in send: tried %d, sent %d\n", len, cc);
|
|
|
|
|
}
|
|
|
|
|
#endif /* HAVE_SOCKETS */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_open (name, from_tty)
|
|
|
|
|
char *name;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
|
|
|
|
struct cleanup *old_chain;
|
|
|
|
|
int c;
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
if (!name)
|
|
|
|
|
error ("You need to specify what device or hostname is associated with the SparcLite board.");
|
|
|
|
|
|
|
|
|
|
target_preopen (from_tty);
|
|
|
|
|
|
|
|
|
|
unpush_target (&sparclite_ops);
|
|
|
|
|
|
|
|
|
|
if (remote_target_name)
|
|
|
|
|
free (remote_target_name);
|
|
|
|
|
|
|
|
|
|
remote_target_name = strsave (name);
|
|
|
|
|
|
|
|
|
|
/* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can
|
|
|
|
|
mean either a serial port on a terminal server, or the IP address of a
|
|
|
|
|
SPARClite demo board. If there's no colon, then it pretty much has to be
|
|
|
|
|
a local device (except for DOS... grrmble) */
|
|
|
|
|
|
|
|
|
|
p = strchr (name, ' ');
|
|
|
|
|
|
|
|
|
|
if (p)
|
|
|
|
|
{
|
|
|
|
|
*p++ = '\000';
|
|
|
|
|
while ((*p != '\000') && isspace (*p)) p++;
|
|
|
|
|
|
|
|
|
|
if (strncmp (name, "serial", strlen (name)) == 0)
|
|
|
|
|
serial_flag = 1;
|
|
|
|
|
else if (strncmp (name, "udp", strlen (name)) == 0)
|
|
|
|
|
serial_flag = 0;
|
|
|
|
|
else
|
|
|
|
|
error ("Must specify either `serial' or `udp'.");
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
p = name;
|
|
|
|
|
|
|
|
|
|
if (!strchr (name, ':'))
|
|
|
|
|
serial_flag = 1; /* No colon is unambiguous (local device) */
|
|
|
|
|
else
|
|
|
|
|
error ("Usage: target sparclite serial /dev/ttyb\n\
|
|
|
|
|
or: target sparclite udp host");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (serial_flag)
|
|
|
|
|
{
|
|
|
|
|
remote_desc = open_tty (p);
|
|
|
|
|
|
|
|
|
|
old_chain = make_cleanup ((make_cleanup_func) close_tty, 0);
|
|
|
|
|
|
|
|
|
|
c = send_resp (remote_desc, 0x00);
|
|
|
|
|
|
|
|
|
|
if (c != 0xaa)
|
|
|
|
|
error ("Unknown response (0x%x) from SparcLite. Try resetting the board.",
|
|
|
|
|
c);
|
|
|
|
|
|
|
|
|
|
c = send_resp (remote_desc, 0x55);
|
|
|
|
|
|
|
|
|
|
if (c != 0x55)
|
|
|
|
|
error ("Sparclite appears to be ill.");
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
#ifdef HAVE_SOCKETS
|
|
|
|
|
struct hostent *he;
|
|
|
|
|
struct sockaddr_in sockaddr;
|
|
|
|
|
unsigned char buffer[100];
|
|
|
|
|
int cc;
|
|
|
|
|
|
|
|
|
|
/* Setup the socket. Must be raw UDP. */
|
|
|
|
|
|
|
|
|
|
he = gethostbyname (p);
|
|
|
|
|
|
|
|
|
|
if (!he)
|
|
|
|
|
error ("No such host %s.", p);
|
|
|
|
|
|
|
|
|
|
udp_fd = socket (PF_INET, SOCK_DGRAM, 0);
|
|
|
|
|
|
|
|
|
|
old_chain = make_cleanup (close, udp_fd);
|
|
|
|
|
|
|
|
|
|
sockaddr.sin_family = PF_INET;
|
|
|
|
|
sockaddr.sin_port = htons(7000);
|
|
|
|
|
memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr));
|
|
|
|
|
|
|
|
|
|
if (connect (udp_fd, &sockaddr, sizeof(sockaddr)))
|
|
|
|
|
perror_with_name ("Connect failed");
|
|
|
|
|
|
|
|
|
|
buffer[0] = 0x5;
|
|
|
|
|
buffer[1] = 0;
|
|
|
|
|
|
|
|
|
|
send_udp_buf (udp_fd, buffer, 2); /* Request version */
|
|
|
|
|
cc = recv_udp_buf (udp_fd, buffer, sizeof(buffer), 5); /* Get response */
|
|
|
|
|
if (cc == 0)
|
|
|
|
|
error ("SPARClite isn't responding.");
|
|
|
|
|
|
|
|
|
|
if (cc < 3)
|
|
|
|
|
error ("SPARClite appears to be ill.");
|
|
|
|
|
#else
|
|
|
|
|
error ("UDP downloading is not supported for DOS hosts.");
|
|
|
|
|
#endif /* HAVE_SOCKETS */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printf_unfiltered ("[SPARClite appears to be alive]\n");
|
|
|
|
|
|
|
|
|
|
push_target (&sparclite_ops);
|
|
|
|
|
|
|
|
|
|
discard_cleanups (old_chain);
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_close (quitting)
|
|
|
|
|
int quitting;
|
|
|
|
|
{
|
|
|
|
|
if (serial_flag)
|
|
|
|
|
close_tty (0);
|
|
|
|
|
#ifdef HAVE_SOCKETS
|
|
|
|
|
else
|
|
|
|
|
if (udp_fd != -1)
|
|
|
|
|
close (udp_fd);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define LOAD_ADDRESS 0x40000000
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
download (target_name, args, from_tty, write_routine, start_routine)
|
|
|
|
|
char *target_name;
|
|
|
|
|
char *args;
|
|
|
|
|
int from_tty;
|
|
|
|
|
void (*write_routine) PARAMS ((bfd *from_bfd, asection *from_sec,
|
|
|
|
|
file_ptr from_addr, bfd_vma to_addr, int len));
|
|
|
|
|
void (*start_routine) PARAMS ((bfd_vma entry));
|
|
|
|
|
{
|
|
|
|
|
struct cleanup *old_chain;
|
|
|
|
|
asection *section;
|
|
|
|
|
bfd *pbfd;
|
|
|
|
|
bfd_vma entry;
|
|
|
|
|
int i;
|
|
|
|
|
#define WRITESIZE 1024
|
|
|
|
|
char *filename;
|
|
|
|
|
int quiet;
|
|
|
|
|
int nostart;
|
|
|
|
|
|
|
|
|
|
quiet = 0;
|
|
|
|
|
nostart = 0;
|
|
|
|
|
filename = NULL;
|
|
|
|
|
|
|
|
|
|
while (*args != '\000')
|
|
|
|
|
{
|
|
|
|
|
char *arg;
|
|
|
|
|
|
|
|
|
|
while (isspace (*args)) args++;
|
|
|
|
|
|
|
|
|
|
arg = args;
|
|
|
|
|
|
|
|
|
|
while ((*args != '\000') && !isspace (*args)) args++;
|
|
|
|
|
|
|
|
|
|
if (*args != '\000')
|
|
|
|
|
*args++ = '\000';
|
|
|
|
|
|
|
|
|
|
if (*arg != '-')
|
|
|
|
|
filename = arg;
|
|
|
|
|
else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
|
|
|
|
|
quiet = 1;
|
|
|
|
|
else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
|
|
|
|
|
nostart = 1;
|
|
|
|
|
else
|
|
|
|
|
error ("unknown option `%s'", arg);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!filename)
|
|
|
|
|
filename = get_exec_file (1);
|
|
|
|
|
|
|
|
|
|
pbfd = bfd_openr (filename, gnutarget);
|
|
|
|
|
if (pbfd == NULL)
|
|
|
|
|
{
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
old_chain = make_cleanup ((make_cleanup_func) bfd_close, pbfd);
|
|
|
|
|
|
|
|
|
|
if (!bfd_check_format (pbfd, bfd_object))
|
|
|
|
|
error ("\"%s\" is not an object file: %s", filename,
|
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
|
|
|
|
|
for (section = pbfd->sections; section; section = section->next)
|
|
|
|
|
{
|
|
|
|
|
if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
|
|
|
|
|
{
|
|
|
|
|
bfd_vma section_address;
|
|
|
|
|
bfd_size_type section_size;
|
|
|
|
|
file_ptr fptr;
|
|
|
|
|
const char *section_name;
|
|
|
|
|
|
|
|
|
|
section_name = bfd_get_section_name(pbfd, section);
|
|
|
|
|
|
|
|
|
|
section_address = bfd_get_section_vma (pbfd, section);
|
|
|
|
|
|
|
|
|
|
/* Adjust sections from a.out files, since they don't
|
|
|
|
|
carry their addresses with. */
|
|
|
|
|
if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour)
|
|
|
|
|
{
|
|
|
|
|
if (strcmp (section_name, ".text") == 0)
|
|
|
|
|
section_address = bfd_get_start_address (pbfd);
|
|
|
|
|
else if (strcmp (section_name, ".data") == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Read the first 8 bytes of the data section.
|
|
|
|
|
There should be the string 'DaTa' followed by
|
|
|
|
|
a word containing the actual section address. */
|
|
|
|
|
struct data_marker
|
|
|
|
|
{
|
|
|
|
|
char signature[4]; /* 'DaTa' */
|
|
|
|
|
unsigned char sdata[4]; /* &sdata */
|
|
|
|
|
} marker;
|
|
|
|
|
bfd_get_section_contents (pbfd, section, &marker, 0,
|
|
|
|
|
sizeof (marker));
|
|
|
|
|
if (strncmp (marker.signature, "DaTa", 4) == 0)
|
|
|
|
|
{
|
|
|
|
|
if (TARGET_BYTE_ORDER == BIG_ENDIAN)
|
|
|
|
|
section_address = bfd_getb32 (marker.sdata);
|
|
|
|
|
else
|
|
|
|
|
section_address = bfd_getl32 (marker.sdata);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
section_size = bfd_get_section_size_before_reloc (section);
|
|
|
|
|
|
|
|
|
|
if (!quiet)
|
|
|
|
|
printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n",
|
|
|
|
|
bfd_get_section_name (pbfd, section),
|
|
|
|
|
section_address,
|
|
|
|
|
section_size);
|
|
|
|
|
|
|
|
|
|
fptr = 0;
|
|
|
|
|
while (section_size > 0)
|
|
|
|
|
{
|
|
|
|
|
int count;
|
|
|
|
|
static char inds[] = "|/-\\";
|
|
|
|
|
static int k = 0;
|
|
|
|
|
|
|
|
|
|
QUIT;
|
|
|
|
|
|
|
|
|
|
count = min (section_size, WRITESIZE);
|
|
|
|
|
|
|
|
|
|
write_routine (pbfd, section, fptr, section_address, count);
|
|
|
|
|
|
|
|
|
|
if (!quiet)
|
|
|
|
|
{
|
|
|
|
|
printf_unfiltered ("\r%c", inds[k++ % 4]);
|
|
|
|
|
gdb_flush (gdb_stdout);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
section_address += count;
|
|
|
|
|
fptr += count;
|
|
|
|
|
section_size -= count;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!nostart)
|
|
|
|
|
{
|
|
|
|
|
entry = bfd_get_start_address (pbfd);
|
|
|
|
|
|
|
|
|
|
if (!quiet)
|
|
|
|
|
printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry);
|
|
|
|
|
|
|
|
|
|
start_routine (entry);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
do_cleanups (old_chain);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_serial_start (entry)
|
|
|
|
|
bfd_vma entry;
|
|
|
|
|
{
|
|
|
|
|
char buffer[5];
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
buffer[0] = 0x03;
|
|
|
|
|
store_unsigned_integer (buffer + 1, 4, entry);
|
|
|
|
|
|
|
|
|
|
debug_serial_write (remote_desc, buffer, 1 + 4);
|
|
|
|
|
i = readchar (remote_desc, remote_timeout);
|
|
|
|
|
if (i != 0x55)
|
|
|
|
|
error ("Can't start SparcLite. Error code %d\n", i);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len)
|
|
|
|
|
bfd *from_bfd;
|
|
|
|
|
asection *from_sec;
|
|
|
|
|
file_ptr from_addr;
|
|
|
|
|
bfd_vma to_addr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */
|
|
|
|
|
unsigned char checksum;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
store_unsigned_integer (buffer, 4, to_addr); /* Address */
|
|
|
|
|
store_unsigned_integer (buffer + 4, 4, len); /* Length */
|
|
|
|
|
|
|
|
|
|
bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len);
|
|
|
|
|
|
|
|
|
|
checksum = 0;
|
|
|
|
|
for (i = 0; i < len; i++)
|
|
|
|
|
checksum += buffer[8 + i];
|
|
|
|
|
|
|
|
|
|
i = send_resp (remote_desc, 0x01);
|
|
|
|
|
|
|
|
|
|
if (i != 0x5a)
|
|
|
|
|
error ("Bad response from load command (0x%x)", i);
|
|
|
|
|
|
|
|
|
|
debug_serial_write (remote_desc, buffer, 4 + 4 + len);
|
|
|
|
|
i = readchar (remote_desc, remote_timeout);
|
|
|
|
|
|
|
|
|
|
if (i != checksum)
|
|
|
|
|
error ("Bad checksum from load command (0x%x)", i);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_SOCKETS
|
|
|
|
|
|
|
|
|
|
static unsigned short
|
|
|
|
|
calc_checksum (buffer, count)
|
|
|
|
|
unsigned char *buffer;
|
|
|
|
|
int count;
|
|
|
|
|
{
|
|
|
|
|
unsigned short checksum;
|
|
|
|
|
|
|
|
|
|
checksum = 0;
|
|
|
|
|
for (; count > 0; count -= 2, buffer += 2)
|
|
|
|
|
checksum += (*buffer << 8) | *(buffer + 1);
|
|
|
|
|
|
|
|
|
|
if (count != 0)
|
|
|
|
|
checksum += *buffer << 8;
|
|
|
|
|
|
|
|
|
|
return checksum;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_udp_start (entry)
|
|
|
|
|
bfd_vma entry;
|
|
|
|
|
{
|
|
|
|
|
unsigned char buffer[6];
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
buffer[0] = 0x3;
|
|
|
|
|
buffer[1] = 0;
|
|
|
|
|
buffer[2] = entry >> 24;
|
|
|
|
|
buffer[3] = entry >> 16;
|
|
|
|
|
buffer[4] = entry >> 8;
|
|
|
|
|
buffer[5] = entry;
|
|
|
|
|
|
|
|
|
|
send_udp_buf (udp_fd, buffer, 6); /* Send start addr */
|
|
|
|
|
i = recv_udp_buf (udp_fd, buffer, sizeof(buffer), -1); /* Get response */
|
|
|
|
|
|
|
|
|
|
if (i < 1 || buffer[0] != 0x55)
|
|
|
|
|
error ("Failed to take start address.");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len)
|
|
|
|
|
bfd *from_bfd;
|
|
|
|
|
asection *from_sec;
|
|
|
|
|
file_ptr from_addr;
|
|
|
|
|
bfd_vma to_addr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
unsigned char buffer[2000];
|
|
|
|
|
unsigned short checksum;
|
|
|
|
|
static int pkt_num = 0;
|
|
|
|
|
static unsigned long old_addr = -1;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
if (to_addr != old_addr)
|
|
|
|
|
{
|
|
|
|
|
buffer[0] = 0x1; /* Load command */
|
|
|
|
|
buffer[1] = 0x1; /* Loading address */
|
|
|
|
|
buffer[2] = to_addr >> 24;
|
|
|
|
|
buffer[3] = to_addr >> 16;
|
|
|
|
|
buffer[4] = to_addr >> 8;
|
|
|
|
|
buffer[5] = to_addr;
|
|
|
|
|
|
|
|
|
|
checksum = 0;
|
|
|
|
|
for (i = 0; i < 6; i++)
|
|
|
|
|
checksum += buffer[i];
|
|
|
|
|
checksum &= 0xff;
|
|
|
|
|
|
|
|
|
|
send_udp_buf (udp_fd, buffer, 6);
|
|
|
|
|
i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1);
|
|
|
|
|
|
|
|
|
|
if (i < 1)
|
|
|
|
|
error ("Got back short checksum for load addr.");
|
|
|
|
|
|
|
|
|
|
if (checksum != buffer[0])
|
|
|
|
|
error ("Got back bad checksum for load addr.");
|
|
|
|
|
|
|
|
|
|
pkt_num = 0; /* Load addr resets packet seq # */
|
|
|
|
|
old_addr = to_addr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr,
|
|
|
|
|
len);
|
|
|
|
|
|
|
|
|
|
checksum = calc_checksum (buffer + 6, len);
|
|
|
|
|
|
|
|
|
|
buffer[0] = 0x1; /* Load command */
|
|
|
|
|
buffer[1] = 0x2; /* Loading data */
|
|
|
|
|
buffer[2] = pkt_num >> 8;
|
|
|
|
|
buffer[3] = pkt_num;
|
|
|
|
|
buffer[4] = checksum >> 8;
|
|
|
|
|
buffer[5] = checksum;
|
|
|
|
|
|
|
|
|
|
send_udp_buf (udp_fd, buffer, len + 6);
|
|
|
|
|
i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3);
|
|
|
|
|
|
|
|
|
|
if (i == 0)
|
|
|
|
|
{
|
|
|
|
|
fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (buffer[0] != 0xff)
|
|
|
|
|
error ("Got back bad response for load data.");
|
|
|
|
|
|
|
|
|
|
old_addr += len;
|
|
|
|
|
pkt_num++;
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* HAVE_SOCKETS */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sparclite_download (filename, from_tty)
|
|
|
|
|
char *filename;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
|
|
|
|
if (!serial_flag)
|
|
|
|
|
#ifdef HAVE_SOCKETS
|
|
|
|
|
download (remote_target_name, filename, from_tty, sparclite_udp_write,
|
|
|
|
|
sparclite_udp_start);
|
|
|
|
|
#else
|
|
|
|
|
abort (); /* sparclite_open should prevent this! */
|
|
|
|
|
#endif
|
|
|
|
|
else
|
|
|
|
|
download (remote_target_name, filename, from_tty, sparclite_serial_write,
|
|
|
|
|
sparclite_serial_start);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Define the target subroutine names */
|
|
|
|
|
|
|
|
|
|
static struct target_ops sparclite_ops ;
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
init_sparclite_ops(void)
|
|
|
|
|
{
|
|
|
|
|
sparclite_ops.to_shortname = "sparclite";
|
|
|
|
|
sparclite_ops.to_longname = "SPARClite remote target";
|
|
|
|
|
sparclite_ops.to_doc = "Use a remote SPARClite target board via a serial line; using a gdb-specific protocol.\n\
|
|
|
|
|
Specify the serial device it is connected to (e.g. /dev/ttya).";
|
|
|
|
|
sparclite_ops.to_open = sparclite_open;
|
|
|
|
|
sparclite_ops.to_close = sparclite_close;
|
|
|
|
|
sparclite_ops.to_attach = 0;
|
|
|
|
|
sparclite_ops.to_post_attach = NULL;
|
|
|
|
|
sparclite_ops.to_require_attach = NULL;
|
|
|
|
|
sparclite_ops.to_detach = 0;
|
|
|
|
|
sparclite_ops.to_require_detach = NULL;
|
|
|
|
|
sparclite_ops.to_resume = 0;
|
|
|
|
|
sparclite_ops.to_wait = 0;
|
|
|
|
|
sparclite_ops.to_post_wait = NULL;
|
|
|
|
|
sparclite_ops.to_fetch_registers = 0;
|
|
|
|
|
sparclite_ops.to_store_registers = 0;
|
|
|
|
|
sparclite_ops.to_prepare_to_store = 0;
|
|
|
|
|
sparclite_ops.to_xfer_memory = 0;
|
|
|
|
|
sparclite_ops.to_files_info = 0;
|
|
|
|
|
sparclite_ops.to_insert_breakpoint = 0;
|
|
|
|
|
sparclite_ops.to_remove_breakpoint = 0;
|
|
|
|
|
sparclite_ops.to_terminal_init = 0;
|
|
|
|
|
sparclite_ops.to_terminal_inferior = 0;
|
|
|
|
|
sparclite_ops.to_terminal_ours_for_output = 0;
|
|
|
|
|
sparclite_ops.to_terminal_ours = 0;
|
|
|
|
|
sparclite_ops.to_terminal_info = 0;
|
|
|
|
|
sparclite_ops.to_kill = 0;
|
|
|
|
|
sparclite_ops.to_load = sparclite_download;
|
|
|
|
|
sparclite_ops.to_lookup_symbol = 0;
|
|
|
|
|
sparclite_ops.to_create_inferior = 0;
|
|
|
|
|
sparclite_ops.to_post_startup_inferior = NULL;
|
|
|
|
|
sparclite_ops.to_acknowledge_created_inferior = NULL;
|
|
|
|
|
sparclite_ops.to_clone_and_follow_inferior = NULL;
|
|
|
|
|
sparclite_ops.to_post_follow_inferior_by_clone = NULL;
|
|
|
|
|
sparclite_ops.to_insert_fork_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_remove_fork_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_insert_vfork_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_remove_vfork_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_has_forked = NULL;
|
|
|
|
|
sparclite_ops.to_has_vforked = NULL;
|
|
|
|
|
sparclite_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
|
|
|
|
sparclite_ops.to_post_follow_vfork = NULL;
|
|
|
|
|
sparclite_ops.to_insert_exec_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_remove_exec_catchpoint = NULL;
|
|
|
|
|
sparclite_ops.to_has_execd = NULL;
|
|
|
|
|
sparclite_ops.to_reported_exec_events_per_exec_call = NULL;
|
|
|
|
|
sparclite_ops.to_has_exited = NULL;
|
|
|
|
|
sparclite_ops.to_mourn_inferior = 0;
|
|
|
|
|
sparclite_ops.to_can_run = 0;
|
|
|
|
|
sparclite_ops.to_notice_signals = 0;
|
|
|
|
|
sparclite_ops.to_thread_alive = 0;
|
|
|
|
|
sparclite_ops.to_stop = 0;
|
|
|
|
|
sparclite_ops.to_pid_to_exec_file = NULL;
|
|
|
|
|
sparclite_ops.to_core_file_to_sym_file = NULL;
|
|
|
|
|
sparclite_ops.to_stratum = download_stratum;
|
|
|
|
|
sparclite_ops.DONT_USE = 0;
|
|
|
|
|
sparclite_ops.to_has_all_memory = 0;
|
|
|
|
|
sparclite_ops.to_has_memory = 0;
|
|
|
|
|
sparclite_ops.to_has_stack = 0;
|
|
|
|
|
sparclite_ops.to_has_registers = 0;
|
|
|
|
|
sparclite_ops.to_has_execution = 0;
|
|
|
|
|
sparclite_ops.to_sections = 0;
|
|
|
|
|
sparclite_ops.to_sections_end = 0;
|
|
|
|
|
sparclite_ops.to_magic = OPS_MAGIC ;
|
|
|
|
|
} /* init_sparclite_ops */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_sparcl_tdep ()
|
|
|
|
|
{
|
|
|
|
|
init_sparclite_ops() ;
|
|
|
|
|
add_target (&sparclite_ops);
|
|
|
|
|
}
|