980 lines
25 KiB
C
980 lines
25 KiB
C
/* GDB interface to ARM RDI library.
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Copyright 1997 Free Software Foundation, Inc.
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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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/* 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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extern struct target_ops arm_rdi_ops; /* Forward decl */
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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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voiddummy()
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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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fputc (c, (FILE *) arg);
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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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return fwrite (buffer, 1, len, stdout);
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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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/* 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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rslt = Adp_OpenDevice (NULL, NULL, 1);
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if (rslt != adp_ok)
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error ("Could not open port");
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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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/*
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** There's no point asking if the target's an ICEBreaker, unless
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** you're going to do something with the answer. All it does is provoke
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** an error message on non-ICE targets
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rslt = angel_RDI_info (RDIInfo_Icebreaker, & 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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*/
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/*
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** There's no point asking if the target can accept a configuration download,
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** unless you're going to do something with the answer. All it does is
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** provoke an error message on non-ICE targets
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rslt = angel_RDI_info (RDIInfo_DownLoad, & 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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*/
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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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}
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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. */
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static void
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arm_rdi_create_inferior (exec_file, args, env)
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char *exec_file;
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char *args;
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char **env;
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{
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int len, rslt;
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unsigned long arg1, arg2;
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char *arg_buf;
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CORE_ADDR entry_point;
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if (exec_file == 0 || exec_bfd == 0)
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error ("No exec file specified.");
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entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd);
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arm_rdi_kill ();
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remove_breakpoints ();
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init_wait_for_inferior ();
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len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop*/ 10;
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arg_buf = (char *) alloca (len);
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arg_buf[0] = '\0';
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strcat (arg_buf, exec_file);
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strcat (arg_buf, " ");
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strcat (arg_buf, args);
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inferior_pid = 42;
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insert_breakpoints (); /* Needed to get correct instruction in cache */
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if ( env != NULL)
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{
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while (*env)
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{
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if (strncmp(*env, "MEMSIZE=", sizeof("MEMSIZE=")-1)==0)
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{
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unsigned long top_of_memory;
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char *end_of_num;
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/* Set up memory limit */
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top_of_memory = strtoul(*env + sizeof("MEMSIZE=")-1,
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&end_of_num, 0);
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printf_filtered ("Setting top-of-memory to 0x%x\n",
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top_of_memory);
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rslt=angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &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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}
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env++;
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}
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}
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arg1 = (unsigned long) arg_buf;
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rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *)arg_buf, &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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proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0);
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}
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/* This takes a program previously attached to and detaches it. After
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this is done, GDB can be used to debug some other program. We
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better not have left any breakpoints in the target program or it'll
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die when it hits one. */
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static void
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arm_rdi_detach (args, from_tty)
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char *args;
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int from_tty;
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{
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/* (anything to do?) */
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}
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/* Clean up connection to a remote debugger. */
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static void
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arm_rdi_close (quitting)
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int quitting;
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{
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int rslt;
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rslt = angel_RDI_close ();
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if (rslt)
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{
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printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt));
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}
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}
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/* Tell the remote machine to resume. */
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static void
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arm_rdi_resume (pid, step, siggnal)
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int pid, step;
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enum target_signal siggnal;
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{
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int rslt;
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PointHandle point;
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if (0 /* turn on when hardware supports single-stepping */)
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{
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rslt = angel_RDI_step (1, &point);
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if (rslt)
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{
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printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt));
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}
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}
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else
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{
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char handle[4];
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CORE_ADDR pc;
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if (step)
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{
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pc = read_register (PC_REGNUM);
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pc = arm_get_next_pc (pc);
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arm_rdi_insert_breakpoint (pc, handle);
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}
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execute_status = rslt = angel_RDI_execute (&point);
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if (rslt == RDIError_BreakpointReached)
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;
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else if (rslt)
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{
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printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt));
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}
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if (step)
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{
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arm_rdi_remove_breakpoint (pc, handle);
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}
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}
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}
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/* Send ^C to target to halt it. Target will respond, and send us a
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packet. */
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static void
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arm_rdi_interrupt (signo)
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int signo;
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{
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}
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static void (*ofunc)();
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/* The user typed ^C twice. */
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static void
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arm_rdi_interrupt_twice (signo)
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int signo;
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{
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}
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/* Ask the user what to do when an interrupt is received. */
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static void
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interrupt_query ()
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{
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}
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/* Wait until the remote machine stops, then return, storing status in
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STATUS just as `wait' would. Returns "pid" (though it's not clear
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what, if anything, that means in the case of this target). */
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static int
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arm_rdi_wait (pid, status)
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int pid;
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struct target_waitstatus *status;
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{
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status->kind = execute_status == RDIError_NoError ?
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TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED;
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/* convert stopped code from target into right signal */
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status->value.sig = rdi_error_signal ( execute_status );
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return inferior_pid;
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}
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/* Read the remote registers into the block REGS. */
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/* ARGSUSED */
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static void
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arm_rdi_fetch_registers (regno)
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int regno;
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{
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int rslt, rdi_regmask;
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unsigned long rawreg, rawregs[32];
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char cookedreg[4];
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if (regno == -1)
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{
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rslt = angel_RDI_CPUread (255, 0x27fff, rawregs);
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if (rslt)
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{
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printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt));
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}
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for (regno = 0; regno < 15; regno++)
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{
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store_unsigned_integer (cookedreg, 4, rawregs[regno]);
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supply_register (regno, (char *) cookedreg);
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}
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store_unsigned_integer (cookedreg, 4, rawregs[15]);
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supply_register (PS_REGNUM, (char *) cookedreg);
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arm_rdi_fetch_registers (PC_REGNUM);
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}
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else
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{
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if (regno == PC_REGNUM)
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rdi_regmask = RDIReg_PC;
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else if (regno == PS_REGNUM)
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rdi_regmask = RDIReg_CPSR;
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else if (regno < 0 || regno > 15)
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{
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rawreg = 0;
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supply_register (regno, (char *) &rawreg);
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return;
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}
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else
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rdi_regmask = 1 << regno;
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||
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. */
|
||
|
||
struct target_ops arm_rdi_ops = {
|
||
"rdi", /* to_shortname */
|
||
"ARM RDI", /* to_longname */
|
||
"Use a remote ARM-based computer, via the RDI library.\n\
|
||
Specify the serial device it is connected to (e.g. /dev/ttya).", /* to_doc */
|
||
arm_rdi_open, /* to_open */
|
||
arm_rdi_close, /* to_close */
|
||
NULL, /* to_attach */
|
||
arm_rdi_detach, /* to_detach */
|
||
arm_rdi_resume, /* to_resume */
|
||
arm_rdi_wait, /* to_wait */
|
||
arm_rdi_fetch_registers, /* to_fetch_registers */
|
||
arm_rdi_store_registers, /* to_store_registers */
|
||
arm_rdi_prepare_to_store, /* to_prepare_to_store */
|
||
arm_rdi_xfer_memory, /* to_xfer_memory */
|
||
arm_rdi_files_info, /* to_files_info */
|
||
arm_rdi_insert_breakpoint, /* to_insert_breakpoint */
|
||
arm_rdi_remove_breakpoint, /* to_remove_breakpoint */
|
||
NULL, /* to_terminal_init */
|
||
NULL, /* to_terminal_inferior */
|
||
NULL, /* to_terminal_ours_for_output */
|
||
NULL, /* to_terminal_ours */
|
||
NULL, /* to_terminal_info */
|
||
arm_rdi_kill, /* to_kill */
|
||
generic_load, /* to_load */
|
||
NULL, /* to_lookup_symbol */
|
||
arm_rdi_create_inferior, /* to_create_inferior */
|
||
arm_rdi_mourn_inferior, /* to_mourn_inferior */
|
||
0, /* to_can_run */
|
||
0, /* to_notice_signals */
|
||
0, /* to_thread_alive */
|
||
0, /* to_stop */
|
||
process_stratum, /* to_stratum */
|
||
NULL, /* to_next */
|
||
1, /* to_has_all_memory */
|
||
1, /* to_has_memory */
|
||
1, /* to_has_stack */
|
||
1, /* to_has_registers */
|
||
1, /* to_has_execution */
|
||
NULL, /* sections */
|
||
NULL, /* sections_end */
|
||
OPS_MAGIC /* to_magic */
|
||
};
|
||
|
||
void
|
||
_initialize_remote_rdi ()
|
||
{
|
||
add_target (&arm_rdi_ops);
|
||
}
|
||
|
||
/* A little dummy to make linking with the library succeed. */
|
||
|
||
Fail() {}
|