1998-01-08 19:12:39 +08:00
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/* GDB interface to ARM RDI library.
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1998-09-25 06:48:48 +08:00
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Copyright 1997, 1998 Free Software Foundation, Inc.
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1998-01-08 19:12:39 +08:00
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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 "gdb_string.h"
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#include <fcntl.h>
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#include "frame.h"
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#include "inferior.h"
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#include "bfd.h"
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#include "symfile.h"
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#include "target.h"
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#include "wait.h"
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#include "gdbcmd.h"
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#include "objfiles.h"
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#include "gdb-stabs.h"
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#include "gdbthread.h"
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#include "gdbcore.h"
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#ifdef USG
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#include <sys/types.h>
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#endif
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#include <signal.h>
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#include "rdi-share/ardi.h"
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#include "rdi-share/adp.h"
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#include "rdi-share/hsys.h"
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1998-09-26 03:04:46 +08:00
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extern int isascii PARAMS ((int));
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1998-01-08 19:12:39 +08:00
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/* Prototypes for local functions */
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static void arm_rdi_files_info PARAMS ((struct target_ops *ignore));
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static int arm_rdi_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
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int len, int should_write,
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struct target_ops *target));
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static void arm_rdi_prepare_to_store PARAMS ((void));
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static void arm_rdi_fetch_registers PARAMS ((int regno));
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static void arm_rdi_resume PARAMS ((int pid, int step,
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enum target_signal siggnal));
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static int arm_rdi_start_remote PARAMS ((char *dummy));
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static void arm_rdi_open PARAMS ((char *name, int from_tty));
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static void arm_rdi_create_inferior PARAMS ((char *exec_file, char *args,
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char **env));
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static void arm_rdi_close PARAMS ((int quitting));
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static void arm_rdi_store_registers PARAMS ((int regno));
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static void arm_rdi_mourn PARAMS ((void));
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static void arm_rdi_send PARAMS ((char *buf));
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static int arm_rdi_wait PARAMS ((int pid, struct target_waitstatus *status));
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static void arm_rdi_kill PARAMS ((void));
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static void arm_rdi_detach PARAMS ((char *args, int from_tty));
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static void arm_rdi_interrupt PARAMS ((int signo));
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static void arm_rdi_interrupt_twice PARAMS ((int signo));
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static void interrupt_query PARAMS ((void));
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static int arm_rdi_insert_breakpoint PARAMS ((CORE_ADDR, char *));
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static int arm_rdi_remove_breakpoint PARAMS ((CORE_ADDR, char *));
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static char *rdi_error_message PARAMS ((int err));
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static enum target_signal rdi_error_signal PARAMS ((int err));
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1998-09-25 06:48:48 +08:00
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/* Global variables. */
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struct target_ops arm_rdi_ops;
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1998-01-08 19:12:39 +08:00
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static struct Dbg_ConfigBlock gdb_config;
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static struct Dbg_HostosInterface gdb_hostif;
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static int max_load_size;
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static int execute_status;
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/* A little list of breakpoints that have been set. */
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static struct local_bp_list_entry {
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CORE_ADDR addr;
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PointHandle point;
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struct local_bp_list_entry *next;
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} *local_bp_list;
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/* Stub for catch_errors. */
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static int
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arm_rdi_start_remote (dummy)
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char *dummy;
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{
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return 1;
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}
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/* Helper callbacks for the "host interface" structure. RDI functions call
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these to forward output from the target system and so forth. */
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void
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1998-09-25 06:48:48 +08:00
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voiddummy ()
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1998-01-08 19:12:39 +08:00
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{
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printf("void dummy\n");
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}
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static void
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myprint (arg, format, ap)
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PTR arg;
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const char *format;
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va_list ap;
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{
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vfprintf (stdout, format, ap);
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}
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static void
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mywritec (arg, c)
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PTR arg;
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int c;
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{
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1998-09-26 03:04:46 +08:00
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if (isascii (c))
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fputc_unfiltered (c, (FILE *) arg);
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1998-01-08 19:12:39 +08:00
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}
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static int
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mywrite (arg, buffer, len)
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PTR arg;
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char const *buffer;
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int len;
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{
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1998-09-26 03:04:46 +08:00
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int i;
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char *e;
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e = (char *) buffer;
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for (i = 0; i < len; i++)
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{
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if (isascii ((int) *e))
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{
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fputc_unfiltered ((int) *e, gdb_stdout);
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e++;
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}
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}
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return len;
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1998-01-08 19:12:39 +08:00
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}
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static void
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mypause (arg)
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PTR arg;
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{
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}
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/* These last two are tricky as we have to handle the special case of
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being interrupted more carefully */
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static int
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myreadc (arg)
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PTR arg;
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{
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return fgetc (stdin);
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}
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static char *
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mygets (arg, buffer, len)
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PTR arg;
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char *buffer;
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int len;
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{
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return fgets(buffer, len, stdin);
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}
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1998-09-16 05:03:26 +08:00
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/* Prevent multiple calls to angel_RDI_close(). */
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static int closed_already = 1;
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1998-01-08 19:12:39 +08:00
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/* Open a connection to a remote debugger. NAME is the filename used
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for communication. */
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static void
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arm_rdi_open (name, from_tty)
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char *name;
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int from_tty;
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{
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int rslt, i;
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unsigned long arg1, arg2;
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if (name == NULL)
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error ("To open an RDI connection, you need to specify what serial\n\
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device is attached to the remote system (e.g. /dev/ttya).");
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/* Make the basic low-level connection. */
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1998-08-19 09:27:46 +08:00
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rslt = Adp_OpenDevice (name, NULL, 1);
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1998-01-08 19:12:39 +08:00
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if (rslt != adp_ok)
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1998-08-19 09:27:46 +08:00
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error ("Could not open device \"%s\"", name);
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1998-01-08 19:12:39 +08:00
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gdb_config.bytesex = 2 | (target_byte_order == BIG_ENDIAN ? 1 : 0);
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gdb_config.fpe = 1;
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gdb_config.rditype = 2;
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gdb_config.heartbeat_on = 1;
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gdb_config.flags = 2;
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gdb_hostif.dbgprint = myprint;
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gdb_hostif.dbgpause = mypause;
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gdb_hostif.dbgarg = stdout;
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gdb_hostif.writec = mywritec;
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gdb_hostif.readc = myreadc;
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gdb_hostif.write = mywrite;
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gdb_hostif.gets = mygets;
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gdb_hostif.hostosarg = stdout;
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gdb_hostif.reset = voiddummy;
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rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL);
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if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian)
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; /* do nothing, this is the expected return */
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else if (rslt)
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{
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printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt));
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}
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rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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1998-01-16 04:33:03 +08:00
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1998-01-08 19:12:39 +08:00
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rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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max_load_size = arg1;
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push_target (&arm_rdi_ops);
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target_fetch_registers (-1);
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rslt = angel_RDI_open (1, &gdb_config, NULL, NULL);
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if (rslt)
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{
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printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt));
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}
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arg1 = 0x13b;
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rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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arg1 = (unsigned long) "";
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rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2);
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if (rslt)
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{
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printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
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}
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/* Clear out any existing records of breakpoints. */
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{
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struct local_bp_list_entry *entry, *preventry = NULL;
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for (entry = local_bp_list; entry != NULL; entry = entry->next)
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{
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if (preventry)
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free (preventry);
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}
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}
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printf_filtered ("Connected to ARM RDI target.\n");
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1998-09-16 05:03:26 +08:00
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closed_already = 0;
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1998-09-26 03:04:46 +08:00
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inferior_pid = 42;
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1998-01-08 19:12:39 +08:00
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}
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/* Start an inferior process and set inferior_pid to its pid.
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EXEC_FILE is the file to run.
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ARGS is a string containing the arguments to the program.
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ENV is the environment vector to pass. Errors reported with error().
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On VxWorks and various standalone systems, we ignore exec_file. */
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/* This is called not only when we first attach, but also when the
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|
|
|
user types "run" after having attached. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_create_inferior (exec_file, args, env)
|
|
|
|
|
char *exec_file;
|
|
|
|
|
char *args;
|
|
|
|
|
char **env;
|
|
|
|
|
{
|
|
|
|
|
int len, rslt;
|
|
|
|
|
unsigned long arg1, arg2;
|
|
|
|
|
char *arg_buf;
|
|
|
|
|
CORE_ADDR entry_point;
|
|
|
|
|
|
|
|
|
|
if (exec_file == 0 || exec_bfd == 0)
|
1998-10-01 19:19:11 +08:00
|
|
|
|
error ("No executable file specified.");
|
1998-01-08 19:12:39 +08:00
|
|
|
|
|
|
|
|
|
entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd);
|
|
|
|
|
|
|
|
|
|
arm_rdi_kill ();
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
init_wait_for_inferior ();
|
|
|
|
|
|
|
|
|
|
len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop*/ 10;
|
|
|
|
|
arg_buf = (char *) alloca (len);
|
|
|
|
|
arg_buf[0] = '\0';
|
|
|
|
|
strcat (arg_buf, exec_file);
|
|
|
|
|
strcat (arg_buf, " ");
|
|
|
|
|
strcat (arg_buf, args);
|
|
|
|
|
|
|
|
|
|
inferior_pid = 42;
|
|
|
|
|
insert_breakpoints (); /* Needed to get correct instruction in cache */
|
|
|
|
|
|
1998-09-25 06:48:48 +08:00
|
|
|
|
if (env != NULL)
|
1998-01-08 19:12:39 +08:00
|
|
|
|
{
|
|
|
|
|
while (*env)
|
|
|
|
|
{
|
1998-09-25 06:48:48 +08:00
|
|
|
|
if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0)
|
1998-01-08 19:12:39 +08:00
|
|
|
|
{
|
|
|
|
|
unsigned long top_of_memory;
|
|
|
|
|
char *end_of_num;
|
|
|
|
|
|
|
|
|
|
/* Set up memory limit */
|
1998-09-25 06:48:48 +08:00
|
|
|
|
top_of_memory = strtoul (*env + sizeof ("MEMSIZE=") - 1,
|
|
|
|
|
&end_of_num, 0);
|
1998-01-08 19:12:39 +08:00
|
|
|
|
printf_filtered ("Setting top-of-memory to 0x%x\n",
|
|
|
|
|
top_of_memory);
|
|
|
|
|
|
1998-09-25 06:48:48 +08:00
|
|
|
|
rslt = angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2);
|
1998-01-08 19:12:39 +08:00
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
env++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
arg1 = (unsigned long) arg_buf;
|
|
|
|
|
rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *)arg_buf, &arg2);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This takes a program previously attached to and detaches it. After
|
|
|
|
|
this is done, GDB can be used to debug some other program. We
|
|
|
|
|
better not have left any breakpoints in the target program or it'll
|
|
|
|
|
die when it hits one. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_detach (args, from_tty)
|
|
|
|
|
char *args;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
1998-09-26 03:04:46 +08:00
|
|
|
|
pop_target ();
|
1998-01-08 19:12:39 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Clean up connection to a remote debugger. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_close (quitting)
|
|
|
|
|
int quitting;
|
|
|
|
|
{
|
|
|
|
|
int rslt;
|
|
|
|
|
|
1998-09-16 05:03:26 +08:00
|
|
|
|
if (! closed_already)
|
1998-01-08 19:12:39 +08:00
|
|
|
|
{
|
1998-09-16 05:03:26 +08:00
|
|
|
|
rslt = angel_RDI_close ();
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
closed_already = 1;
|
1998-09-26 03:04:46 +08:00
|
|
|
|
inferior_pid = 0;
|
1998-01-08 19:12:39 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Tell the remote machine to resume. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_resume (pid, step, siggnal)
|
|
|
|
|
int pid, step;
|
|
|
|
|
enum target_signal siggnal;
|
|
|
|
|
{
|
|
|
|
|
int rslt;
|
|
|
|
|
PointHandle point;
|
|
|
|
|
|
|
|
|
|
if (0 /* turn on when hardware supports single-stepping */)
|
|
|
|
|
{
|
|
|
|
|
rslt = angel_RDI_step (1, &point);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char handle[4];
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
|
|
|
|
|
if (step)
|
|
|
|
|
{
|
|
|
|
|
pc = read_register (PC_REGNUM);
|
|
|
|
|
pc = arm_get_next_pc (pc);
|
|
|
|
|
arm_rdi_insert_breakpoint (pc, handle);
|
|
|
|
|
}
|
|
|
|
|
execute_status = rslt = angel_RDI_execute (&point);
|
|
|
|
|
if (rslt == RDIError_BreakpointReached)
|
|
|
|
|
;
|
|
|
|
|
else if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
if (step)
|
|
|
|
|
{
|
|
|
|
|
arm_rdi_remove_breakpoint (pc, handle);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Send ^C to target to halt it. Target will respond, and send us a
|
|
|
|
|
packet. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_interrupt (signo)
|
|
|
|
|
int signo;
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void (*ofunc)();
|
|
|
|
|
|
|
|
|
|
/* The user typed ^C twice. */
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_interrupt_twice (signo)
|
|
|
|
|
int signo;
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Ask the user what to do when an interrupt is received. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
interrupt_query ()
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Wait until the remote machine stops, then return, storing status in
|
|
|
|
|
STATUS just as `wait' would. Returns "pid" (though it's not clear
|
|
|
|
|
what, if anything, that means in the case of this target). */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
arm_rdi_wait (pid, status)
|
|
|
|
|
int pid;
|
|
|
|
|
struct target_waitstatus *status;
|
|
|
|
|
{
|
1998-09-25 06:48:48 +08:00
|
|
|
|
status->kind = (execute_status == RDIError_NoError ?
|
|
|
|
|
TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED);
|
1998-01-08 19:12:39 +08:00
|
|
|
|
|
|
|
|
|
/* convert stopped code from target into right signal */
|
1998-09-25 06:48:48 +08:00
|
|
|
|
status->value.sig = rdi_error_signal (execute_status);
|
1998-01-08 19:12:39 +08:00
|
|
|
|
|
|
|
|
|
return inferior_pid;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read the remote registers into the block REGS. */
|
|
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_fetch_registers (regno)
|
|
|
|
|
int regno;
|
|
|
|
|
{
|
|
|
|
|
int rslt, rdi_regmask;
|
|
|
|
|
unsigned long rawreg, rawregs[32];
|
|
|
|
|
char cookedreg[4];
|
|
|
|
|
|
|
|
|
|
if (regno == -1)
|
|
|
|
|
{
|
|
|
|
|
rslt = angel_RDI_CPUread (255, 0x27fff, rawregs);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (regno = 0; regno < 15; regno++)
|
|
|
|
|
{
|
|
|
|
|
store_unsigned_integer (cookedreg, 4, rawregs[regno]);
|
|
|
|
|
supply_register (regno, (char *) cookedreg);
|
|
|
|
|
}
|
|
|
|
|
store_unsigned_integer (cookedreg, 4, rawregs[15]);
|
|
|
|
|
supply_register (PS_REGNUM, (char *) cookedreg);
|
|
|
|
|
arm_rdi_fetch_registers (PC_REGNUM);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (regno == PC_REGNUM)
|
|
|
|
|
rdi_regmask = RDIReg_PC;
|
|
|
|
|
else if (regno == PS_REGNUM)
|
|
|
|
|
rdi_regmask = RDIReg_CPSR;
|
|
|
|
|
else if (regno < 0 || regno > 15)
|
|
|
|
|
{
|
|
|
|
|
rawreg = 0;
|
|
|
|
|
supply_register (regno, (char *) &rawreg);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
rdi_regmask = 1 << regno;
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
store_unsigned_integer (cookedreg, 4, rawreg);
|
|
|
|
|
supply_register (regno, (char *) cookedreg);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_prepare_to_store ()
|
|
|
|
|
{
|
|
|
|
|
/* Nothing to do. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store register REGNO, or all registers if REGNO == -1, from the contents
|
|
|
|
|
of REGISTERS. FIXME: ignores errors. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_store_registers (regno)
|
|
|
|
|
int regno;
|
|
|
|
|
{
|
|
|
|
|
int rslt, rdi_regmask;
|
|
|
|
|
|
|
|
|
|
/* These need to be able to take 'floating point register' contents */
|
|
|
|
|
unsigned long rawreg[3], rawerreg[3];
|
|
|
|
|
|
|
|
|
|
if (regno == -1)
|
|
|
|
|
{
|
|
|
|
|
for (regno = 0; regno < NUM_REGS; regno++)
|
|
|
|
|
arm_rdi_store_registers (regno);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
read_register_gen (regno, (char *) rawreg);
|
|
|
|
|
/* RDI manipulates data in host byte order, so convert now. */
|
|
|
|
|
store_unsigned_integer (rawerreg, 4, rawreg[0]);
|
|
|
|
|
|
|
|
|
|
if (regno == PC_REGNUM)
|
|
|
|
|
rdi_regmask = RDIReg_PC;
|
|
|
|
|
else if (regno == PS_REGNUM)
|
|
|
|
|
rdi_regmask = RDIReg_CPSR;
|
|
|
|
|
else if (regno < 0 || regno > 15)
|
|
|
|
|
return;
|
|
|
|
|
else
|
|
|
|
|
rdi_regmask = 1 << regno;
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read or write LEN bytes from inferior memory at MEMADDR,
|
|
|
|
|
transferring to or from debugger address MYADDR. Write to inferior
|
|
|
|
|
if SHOULD_WRITE is nonzero. Returns length of data written or
|
|
|
|
|
read; 0 for error. */
|
|
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
|
static int
|
|
|
|
|
arm_rdi_xfer_memory(memaddr, myaddr, len, should_write, target)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
int should_write;
|
|
|
|
|
struct target_ops *target; /* ignored */
|
|
|
|
|
{
|
|
|
|
|
int rslt, i;
|
|
|
|
|
|
|
|
|
|
if (should_write)
|
|
|
|
|
{
|
|
|
|
|
rslt = angel_RDI_write (myaddr, memaddr, &len);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
rslt = angel_RDI_read (memaddr, myaddr, &len);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt));
|
|
|
|
|
len = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return len;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Display random info collected from the target. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_files_info (ignore)
|
|
|
|
|
struct target_ops *ignore;
|
|
|
|
|
{
|
|
|
|
|
char *file = "nothing";
|
|
|
|
|
int rslt;
|
|
|
|
|
unsigned long arg1, arg2;
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
if (arg1 & (1 << 15))
|
|
|
|
|
printf_filtered ("Target supports Thumb code.\n");
|
|
|
|
|
if (arg1 & (1 << 14))
|
|
|
|
|
printf_filtered ("Target can do profiling.\n");
|
|
|
|
|
if (arg1 & (1 << 4))
|
|
|
|
|
printf_filtered ("Target is real hardware.\n");
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not"));
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
printf_filtered ("Target includes an EmbeddedICE.\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_kill ()
|
|
|
|
|
{
|
|
|
|
|
int rslt;
|
|
|
|
|
|
|
|
|
|
rslt = angel_RDI_open (1, &gdb_config, NULL, NULL);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
arm_rdi_mourn_inferior ()
|
|
|
|
|
{
|
|
|
|
|
unpush_target (&arm_rdi_ops);
|
|
|
|
|
generic_mourn_inferior ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* While the RDI library keeps track of its own breakpoints, we need
|
|
|
|
|
to remember "handles" so that we can delete them later. Since
|
|
|
|
|
breakpoints get used for stepping, be careful not to leak memory
|
|
|
|
|
here. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
arm_rdi_insert_breakpoint (addr, contents_cache)
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
char *contents_cache;
|
|
|
|
|
{
|
|
|
|
|
int rslt;
|
|
|
|
|
PointHandle point;
|
|
|
|
|
struct local_bp_list_entry *entry;
|
|
|
|
|
int type = RDIPoint_EQ;
|
|
|
|
|
|
|
|
|
|
if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr))
|
|
|
|
|
type |= RDIPoint_16Bit;
|
|
|
|
|
rslt = angel_RDI_setbreak (addr, type, 0, &point);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
entry =
|
|
|
|
|
(struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry));
|
|
|
|
|
entry->addr = addr;
|
|
|
|
|
entry->point = point;
|
|
|
|
|
entry->next = local_bp_list;
|
|
|
|
|
local_bp_list = entry;
|
|
|
|
|
return rslt;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
arm_rdi_remove_breakpoint (addr, contents_cache)
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
char *contents_cache;
|
|
|
|
|
{
|
|
|
|
|
int rslt;
|
|
|
|
|
PointHandle point;
|
|
|
|
|
struct local_bp_list_entry *entry, *preventry;
|
|
|
|
|
|
|
|
|
|
for (entry = local_bp_list; entry != NULL; entry = entry->next)
|
|
|
|
|
{
|
|
|
|
|
if (entry->addr == addr)
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
preventry = entry;
|
|
|
|
|
}
|
|
|
|
|
if (entry)
|
|
|
|
|
{
|
|
|
|
|
rslt = angel_RDI_clearbreak (entry->point);
|
|
|
|
|
if (rslt)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt));
|
|
|
|
|
}
|
|
|
|
|
/* Delete the breakpoint entry locally. */
|
|
|
|
|
if (entry == local_bp_list)
|
|
|
|
|
{
|
|
|
|
|
local_bp_list = entry->next;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
preventry->next = entry->next;
|
|
|
|
|
}
|
|
|
|
|
free (entry);
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static char *
|
|
|
|
|
rdi_error_message (err)
|
|
|
|
|
int err;
|
|
|
|
|
{
|
|
|
|
|
switch (err)
|
|
|
|
|
{
|
|
|
|
|
case RDIError_NoError:
|
|
|
|
|
return "no error";
|
|
|
|
|
case RDIError_Reset:
|
|
|
|
|
return "debuggee reset";
|
|
|
|
|
case RDIError_UndefinedInstruction:
|
|
|
|
|
return "undefined instruction";
|
|
|
|
|
case RDIError_SoftwareInterrupt:
|
|
|
|
|
return "SWI trapped";
|
|
|
|
|
case RDIError_PrefetchAbort:
|
|
|
|
|
return "prefetch abort, execution ran into unmapped memory?";
|
|
|
|
|
case RDIError_DataAbort:
|
|
|
|
|
return "data abort, no memory at specified address?";
|
|
|
|
|
case RDIError_AddressException:
|
|
|
|
|
return "address exception, access >26bit in 26bit mode";
|
|
|
|
|
case RDIError_IRQ:
|
|
|
|
|
return "IRQ, interrupt trapped";
|
|
|
|
|
case RDIError_FIQ:
|
|
|
|
|
return "FIQ, fast interrupt trapped";
|
|
|
|
|
case RDIError_Error:
|
|
|
|
|
return "a miscellaneous type of error";
|
|
|
|
|
case RDIError_BranchThrough0:
|
|
|
|
|
return "branch through location 0";
|
|
|
|
|
case RDIError_NotInitialised:
|
|
|
|
|
return "internal error, RDI_open not called first";
|
|
|
|
|
case RDIError_UnableToInitialise:
|
|
|
|
|
return "internal error, target world is broken";
|
|
|
|
|
case RDIError_WrongByteSex:
|
|
|
|
|
return "See Operator: WrongByteSex";
|
|
|
|
|
case RDIError_UnableToTerminate:
|
|
|
|
|
return "See Operator: Unable to Terminate";
|
|
|
|
|
case RDIError_BadInstruction:
|
|
|
|
|
return "bad instruction, illegal to execute this instruction";
|
|
|
|
|
case RDIError_IllegalInstruction:
|
|
|
|
|
return "illegal instruction, the effect of executing it is undefined";
|
|
|
|
|
case RDIError_BadCPUStateSetting:
|
|
|
|
|
return "internal error, tried to set SPSR of user mode";
|
|
|
|
|
case RDIError_UnknownCoPro:
|
|
|
|
|
return "unknown co-processor";
|
|
|
|
|
case RDIError_UnknownCoProState:
|
|
|
|
|
return "cannot execute co-processor request";
|
|
|
|
|
case RDIError_BadCoProState:
|
|
|
|
|
return "recognizably broken co-processor request";
|
|
|
|
|
case RDIError_BadPointType:
|
|
|
|
|
return "internal error, bad point yype";
|
|
|
|
|
case RDIError_UnimplementedType:
|
|
|
|
|
return "internal error, unimplemented type";
|
|
|
|
|
case RDIError_BadPointSize:
|
|
|
|
|
return "internal error, bad point size";
|
|
|
|
|
case RDIError_UnimplementedSize:
|
|
|
|
|
return "internal error, unimplemented size";
|
|
|
|
|
case RDIError_NoMorePoints:
|
|
|
|
|
return "last break/watch point was used";
|
|
|
|
|
case RDIError_BreakpointReached:
|
|
|
|
|
return "breakpoint reached";
|
|
|
|
|
case RDIError_WatchpointAccessed:
|
|
|
|
|
return "watchpoint accessed";
|
|
|
|
|
case RDIError_NoSuchPoint:
|
|
|
|
|
return "attempted to clear non-existent break/watch point";
|
|
|
|
|
case RDIError_ProgramFinishedInStep:
|
|
|
|
|
return "end of the program reached while stepping";
|
|
|
|
|
case RDIError_UserInterrupt:
|
|
|
|
|
return "you pressed Escape";
|
|
|
|
|
case RDIError_CantSetPoint:
|
|
|
|
|
return "no more break/watch points available";
|
|
|
|
|
case RDIError_IncompatibleRDILevels:
|
|
|
|
|
return "incompatible RDI levels";
|
|
|
|
|
case RDIError_LittleEndian:
|
|
|
|
|
return "debuggee is little endian";
|
|
|
|
|
case RDIError_BigEndian:
|
|
|
|
|
return "debuggee is big endian";
|
|
|
|
|
case RDIError_SoftInitialiseError:
|
|
|
|
|
return "recoverable error in RDI initialization";
|
|
|
|
|
case RDIError_InsufficientPrivilege:
|
|
|
|
|
return "internal error, supervisor state not accessible to monitor";
|
|
|
|
|
case RDIError_UnimplementedMessage:
|
|
|
|
|
return "internal error, unimplemented message";
|
|
|
|
|
case RDIError_UndefinedMessage:
|
|
|
|
|
return "internal error, undefined message";
|
|
|
|
|
default:
|
|
|
|
|
return "undefined error message, should reset target";
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Convert the ARM error messages to signals that GDB knows about. */
|
|
|
|
|
|
|
|
|
|
static enum target_signal
|
|
|
|
|
rdi_error_signal (err)
|
|
|
|
|
int err;
|
|
|
|
|
{
|
|
|
|
|
switch (err)
|
|
|
|
|
{
|
|
|
|
|
case RDIError_NoError:
|
|
|
|
|
return 0;
|
|
|
|
|
case RDIError_Reset:
|
|
|
|
|
return TARGET_SIGNAL_TERM; /* ??? */
|
|
|
|
|
case RDIError_UndefinedInstruction:
|
|
|
|
|
return TARGET_SIGNAL_ILL;
|
|
|
|
|
case RDIError_SoftwareInterrupt:
|
|
|
|
|
case RDIError_PrefetchAbort:
|
|
|
|
|
case RDIError_DataAbort:
|
|
|
|
|
return TARGET_SIGNAL_TRAP;
|
|
|
|
|
case RDIError_AddressException:
|
|
|
|
|
return TARGET_SIGNAL_SEGV;
|
|
|
|
|
case RDIError_IRQ:
|
|
|
|
|
case RDIError_FIQ:
|
|
|
|
|
return TARGET_SIGNAL_TRAP;
|
|
|
|
|
case RDIError_Error:
|
|
|
|
|
return TARGET_SIGNAL_TERM;
|
|
|
|
|
case RDIError_BranchThrough0:
|
|
|
|
|
return TARGET_SIGNAL_TRAP;
|
|
|
|
|
case RDIError_NotInitialised:
|
|
|
|
|
case RDIError_UnableToInitialise:
|
|
|
|
|
case RDIError_WrongByteSex:
|
|
|
|
|
case RDIError_UnableToTerminate:
|
|
|
|
|
return TARGET_SIGNAL_UNKNOWN;
|
|
|
|
|
case RDIError_BadInstruction:
|
|
|
|
|
case RDIError_IllegalInstruction:
|
|
|
|
|
return TARGET_SIGNAL_ILL;
|
|
|
|
|
case RDIError_BadCPUStateSetting:
|
|
|
|
|
case RDIError_UnknownCoPro:
|
|
|
|
|
case RDIError_UnknownCoProState:
|
|
|
|
|
case RDIError_BadCoProState:
|
|
|
|
|
case RDIError_BadPointType:
|
|
|
|
|
case RDIError_UnimplementedType:
|
|
|
|
|
case RDIError_BadPointSize:
|
|
|
|
|
case RDIError_UnimplementedSize:
|
|
|
|
|
case RDIError_NoMorePoints:
|
|
|
|
|
return TARGET_SIGNAL_UNKNOWN;
|
|
|
|
|
case RDIError_BreakpointReached:
|
|
|
|
|
case RDIError_WatchpointAccessed:
|
|
|
|
|
return TARGET_SIGNAL_TRAP;
|
|
|
|
|
case RDIError_NoSuchPoint:
|
|
|
|
|
case RDIError_ProgramFinishedInStep:
|
|
|
|
|
return TARGET_SIGNAL_UNKNOWN;
|
|
|
|
|
case RDIError_UserInterrupt:
|
|
|
|
|
return TARGET_SIGNAL_INT;
|
|
|
|
|
case RDIError_IncompatibleRDILevels:
|
|
|
|
|
case RDIError_LittleEndian:
|
|
|
|
|
case RDIError_BigEndian:
|
|
|
|
|
case RDIError_SoftInitialiseError:
|
|
|
|
|
case RDIError_InsufficientPrivilege:
|
|
|
|
|
case RDIError_UnimplementedMessage:
|
|
|
|
|
case RDIError_UndefinedMessage:
|
|
|
|
|
default:
|
|
|
|
|
return TARGET_SIGNAL_UNKNOWN;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Define the target operations structure. */
|
|
|
|
|
|
1998-09-25 06:48:48 +08:00
|
|
|
|
static void
|
|
|
|
|
init_rdi_ops ()
|
1998-05-22 04:20:39 +08:00
|
|
|
|
{
|
1998-09-25 06:48:48 +08:00
|
|
|
|
arm_rdi_ops.to_shortname = "rdi";
|
|
|
|
|
arm_rdi_ops.to_longname = "ARM RDI";
|
|
|
|
|
arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\
|
1998-05-22 04:20:39 +08:00
|
|
|
|
Specify the serial device it is connected to (e.g. /dev/ttya)." ;
|
1998-09-25 06:48:48 +08:00
|
|
|
|
arm_rdi_ops.to_open = arm_rdi_open;
|
|
|
|
|
arm_rdi_ops.to_close = arm_rdi_close;
|
|
|
|
|
arm_rdi_ops.to_detach = arm_rdi_detach;
|
|
|
|
|
arm_rdi_ops.to_resume = arm_rdi_resume;
|
|
|
|
|
arm_rdi_ops.to_wait = arm_rdi_wait;
|
|
|
|
|
arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers;
|
|
|
|
|
arm_rdi_ops.to_store_registers = arm_rdi_store_registers;
|
|
|
|
|
arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store;
|
|
|
|
|
arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory;
|
|
|
|
|
arm_rdi_ops.to_files_info = arm_rdi_files_info;
|
|
|
|
|
arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint;
|
|
|
|
|
arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint;
|
|
|
|
|
arm_rdi_ops.to_kill = arm_rdi_kill;
|
|
|
|
|
arm_rdi_ops.to_load = generic_load;
|
|
|
|
|
arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior;
|
|
|
|
|
arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior;
|
|
|
|
|
arm_rdi_ops.to_stratum = process_stratum;
|
|
|
|
|
arm_rdi_ops.to_has_all_memory = 1;
|
|
|
|
|
arm_rdi_ops.to_has_memory = 1;
|
|
|
|
|
arm_rdi_ops.to_has_stack = 1;
|
|
|
|
|
arm_rdi_ops.to_has_registers = 1;
|
|
|
|
|
arm_rdi_ops.to_has_execution = 1;
|
|
|
|
|
arm_rdi_ops.to_magic = OPS_MAGIC;
|
1998-05-22 04:20:39 +08:00
|
|
|
|
}
|
1998-01-08 19:12:39 +08:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_remote_rdi ()
|
|
|
|
|
{
|
1998-09-25 06:48:48 +08:00
|
|
|
|
init_rdi_ops () ;
|
1998-01-08 19:12:39 +08:00
|
|
|
|
add_target (&arm_rdi_ops);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* A little dummy to make linking with the library succeed. */
|
|
|
|
|
|
|
|
|
|
Fail() {}
|