1723 lines
47 KiB
C
1723 lines
47 KiB
C
/* Remote debugging interface for AMD 29k interfaced via UDI, for GDB.
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Copyright 1990, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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Written by Daniel Mann. Contributed by AMD.
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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,
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Boston, MA 02111-1307, USA. */
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/* This is like remote.c but uses the Universal Debug Interface (UDI) to
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talk to the target hardware (or simulator). UDI is a TCP/IP based
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protocol; for hardware that doesn't run TCP, an interface adapter
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daemon talks UDI on one side, and talks to the hardware (typically
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over a serial port) on the other side.
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- Originally written by Daniel Mann at AMD for MiniMON and gdb 3.91.6.
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- David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this
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file to gdb 3.95. I was unable to get this working on sun3os4
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with termio, only with sgtty.
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- Daniel Mann at AMD took the 3.95 adaptions above and replaced
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MiniMON interface with UDI-p interface. */
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "value.h"
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#include <ctype.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "gdb_string.h"
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#include "terminal.h"
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#include "target.h"
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#include "29k-share/udi/udiproc.h"
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#include "gdbcmd.h"
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#include "bfd.h"
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#include "gdbcore.h" /* For download function */
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#include "regcache.h"
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/* access the register store directly, without going through
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the normal handler functions. This avoids an extra data copy. */
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extern int stop_soon_quietly; /* for wait_for_inferior */
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extern struct value *call_function_by_hand ();
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static void udi_resume (ptid_t ptid, int step, enum target_signal sig);
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static void udi_fetch_registers (int regno);
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static void udi_load (char *args, int from_tty);
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static void fetch_register (int regno);
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static void udi_store_registers (int regno);
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static int store_register (int regno);
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static int regnum_to_srnum (int regno);
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static void udi_close (int quitting);
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static CPUSpace udi_memory_space (CORE_ADDR addr);
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static int udi_write_inferior_memory (CORE_ADDR memaddr, char *myaddr,
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int len);
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static int udi_read_inferior_memory (CORE_ADDR memaddr, char *myaddr,
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int len);
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static void download (char *load_arg_string, int from_tty);
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char CoffFileName[100] = "";
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#define FREEZE_MODE (read_register(CPS_REGNUM) & 0x400)
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#define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE)
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static int timeout = 5;
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extern struct target_ops udi_ops; /* Forward declaration */
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/* Special register enumeration.
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*/
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/******************************************************************* UDI DATA*/
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#define MAXDATA 2*1024 /* max UDI[read/write] byte size */
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/* Descriptor for I/O to remote machine. Initialize it to -1 so that
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udi_open knows that we don't have a file open when the program
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starts. */
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UDISessionId udi_session_id = -1;
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static char *udi_config_id;
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CPUOffset IMemStart = 0;
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CPUSizeT IMemSize = 0;
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CPUOffset DMemStart = 0;
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CPUSizeT DMemSize = 0;
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CPUOffset RMemStart = 0;
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CPUSizeT RMemSize = 0;
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UDIUInt32 CPUPRL;
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UDIUInt32 CoProcPRL;
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UDIMemoryRange address_ranges[2]; /* Text and data */
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UDIResource entry =
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{0, 0}; /* Entry point */
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CPUSizeT stack_sizes[2]; /* Regular and memory stacks */
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#define SBUF_MAX 1024 /* maximum size of string handling buffer */
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char sbuf[SBUF_MAX];
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typedef struct bkpt_entry_str
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{
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UDIResource Addr;
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UDIUInt32 PassCount;
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UDIBreakType Type;
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unsigned int BreakId;
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}
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bkpt_entry_t;
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#define BKPT_TABLE_SIZE 40
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static bkpt_entry_t bkpt_table[BKPT_TABLE_SIZE];
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extern char dfe_errmsg[]; /* error string */
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/* malloc'd name of the program on the remote system. */
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static char *prog_name = NULL;
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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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udi_create_inferior (char *execfile, char *args, char **env)
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{
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char *args1;
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if (execfile)
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{
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if (prog_name != NULL)
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xfree (prog_name);
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prog_name = savestring (execfile, strlen (execfile));
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}
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else if (entry.Offset)
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execfile = "";
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else
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error ("No image loaded into target.");
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if (udi_session_id < 0)
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{
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/* If the TIP is not open, open it. */
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if (UDIConnect (udi_config_id, &udi_session_id))
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error ("UDIConnect() failed: %s\n", dfe_errmsg);
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/* We will need to download the program. */
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entry.Offset = 0;
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}
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inferior_ptid = pid_to_ptid (40000);
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if (!entry.Offset)
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download (execfile, 0);
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args1 = alloca (strlen (execfile) + strlen (args) + 2);
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if (execfile[0] == '\0')
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/* It is empty. We need to quote it somehow, or else the target
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will think there is no argument being passed here. According
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to the UDI spec it is quoted "according to TIP OS rules" which
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I guess means quoting it like the Unix shell should work
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(sounds pretty bogus to me...). In fact it doesn't work (with
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isstip anyway), but passing in two quotes as the argument seems
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like a reasonable enough behavior anyway (I guess). */
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strcpy (args1, "''");
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else
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strcpy (args1, execfile);
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strcat (args1, " ");
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strcat (args1, args);
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UDIInitializeProcess (address_ranges, /* ProcessMemory[] */
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(UDIInt) 2, /* NumberOfRanges */
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entry, /* EntryPoint */
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stack_sizes, /* *StackSizes */
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(UDIInt) 2, /* NumberOfStacks */
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args1); /* ArgString */
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init_wait_for_inferior ();
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clear_proceed_status ();
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proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
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}
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static void
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udi_mourn (void)
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{
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#if 0
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/* Requiring "target udi" each time you run is a major pain. I suspect
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this was just blindy copied from remote.c, in which "target" and
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"run" are combined. Having a udi target without an inferior seems
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to work between "target udi" and "run", so why not now? */
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pop_target (); /* Pop back to no-child state */
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#endif
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/* But if we're going to want to run it again, we better remove the
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breakpoints... */
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remove_breakpoints ();
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generic_mourn_inferior ();
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}
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/******************************************************************** UDI_OPEN
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** Open a connection to remote TIP.
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NAME is the socket domain used for communication with the TIP,
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then a space and the socket name or TIP-host name.
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'<udi_udi_config_id>' for example.
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*/
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/* XXX - need cleanups for udiconnect for various failures!!! */
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static void
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udi_open (char *name, int from_tty)
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{
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unsigned int prl;
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char *p;
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int cnt;
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UDIMemoryRange KnownMemory[10];
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UDIUInt32 ChipVersions[10];
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UDIInt NumberOfRanges = 10;
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UDIInt NumberOfChips = 10;
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UDIPId PId;
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UDIUInt32 TIPId, TargetId, DFEId, DFE, TIP, DFEIPCId, TIPIPCId;
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target_preopen (from_tty);
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entry.Offset = 0;
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for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
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bkpt_table[cnt].Type = 0;
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if (udi_config_id)
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xfree (udi_config_id);
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if (!name)
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error ("Usage: target udi config_id, where config_id appears in udi_soc file");
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udi_config_id = xstrdup (strtok (name, " \t"));
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if (UDIConnect (udi_config_id, &udi_session_id))
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/* FIXME: Should set udi_session_id to -1 here. */
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error ("UDIConnect() failed: %s\n", dfe_errmsg);
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push_target (&udi_ops);
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/*
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** Initialize target configuration structure (global)
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*/
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if (UDIGetTargetConfig (KnownMemory, &NumberOfRanges,
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ChipVersions, &NumberOfChips))
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error ("UDIGetTargetConfig() failed");
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if (NumberOfChips > 2)
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fprintf_unfiltered (gdb_stderr, "Target has more than one processor\n");
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for (cnt = 0; cnt < NumberOfRanges; cnt++)
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{
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switch (KnownMemory[cnt].Space)
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{
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default:
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fprintf_unfiltered (gdb_stderr, "UDIGetTargetConfig() unknown memory space\n");
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break;
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case UDI29KCP_S:
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break;
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case UDI29KIROMSpace:
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RMemStart = KnownMemory[cnt].Offset;
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RMemSize = KnownMemory[cnt].Size;
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break;
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case UDI29KIRAMSpace:
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IMemStart = KnownMemory[cnt].Offset;
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IMemSize = KnownMemory[cnt].Size;
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break;
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case UDI29KDRAMSpace:
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DMemStart = KnownMemory[cnt].Offset;
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DMemSize = KnownMemory[cnt].Size;
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break;
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}
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}
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a29k_get_processor_type ();
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if (UDICreateProcess (&PId))
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fprintf_unfiltered (gdb_stderr, "UDICreateProcess() failed\n");
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/* Print out some stuff, letting the user now what's going on */
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if (UDICapabilities (&TIPId, &TargetId, DFEId, DFE, &TIP, &DFEIPCId,
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&TIPIPCId, sbuf))
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error ("UDICapabilities() failed");
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if (from_tty)
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{
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printf_filtered ("Connected via UDI socket,\n\
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DFE-IPC version %x.%x.%x TIP-IPC version %x.%x.%x TIP version %x.%x.%x\n %s\n",
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(DFEIPCId >> 8) & 0xf, (DFEIPCId >> 4) & 0xf, DFEIPCId & 0xf,
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(TIPIPCId >> 8) & 0xf, (TIPIPCId >> 4) & 0xf, TIPIPCId & 0xf,
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(TargetId >> 8) & 0xf, (TargetId >> 4) & 0xf, TargetId & 0xf,
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sbuf);
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}
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}
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/******************************************************************* UDI_CLOSE
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Close the open connection to the TIP process.
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Use this when you want to detach and do something else
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with your gdb. */
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static void
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udi_close ( /*FIXME: how is quitting used */
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int quitting)
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{
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if (udi_session_id < 0)
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return;
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/* We should never get here if there isn't something valid in
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udi_session_id. */
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if (UDIDisconnect (udi_session_id, UDITerminateSession))
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{
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if (quitting)
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warning ("UDIDisconnect() failed in udi_close");
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else
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error ("UDIDisconnect() failed in udi_close");
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}
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/* Do not try to close udi_session_id again, later in the program. */
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udi_session_id = -1;
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inferior_ptid = null_ptid;
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printf_filtered (" Ending remote debugging\n");
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}
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/**************************************************************** UDI_ATACH */
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/* Attach to a program that is already loaded and running
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* Upon exiting the process's execution is stopped.
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*/
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static void
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udi_attach (char *args, int from_tty)
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{
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UDIResource From;
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UDIInt32 PC_adds;
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UDICount Count = 1;
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UDISizeT Size = 4;
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UDICount CountDone;
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UDIBool HostEndian = 0;
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UDIError err;
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if (args == NULL)
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error_no_arg ("program to attach");
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if (udi_session_id < 0)
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error ("UDI connection not opened yet, use the 'target udi' command.\n");
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if (from_tty)
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printf_unfiltered ("Attaching to remote program %s...\n", prog_name);
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UDIStop ();
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From.Space = UDI29KSpecialRegs;
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From.Offset = 11;
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if (err = UDIRead (From, &PC_adds, Count, Size, &CountDone, HostEndian))
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error ("UDIRead failed in udi_attach");
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printf_unfiltered ("Remote process is now halted, pc1 = 0x%x.\n", PC_adds);
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}
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/************************************************************* UDI_DETACH */
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/* Terminate the open connection to the TIP process.
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Use this when you want to detach and do something else
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with your gdb. Leave remote process running (with no breakpoints set). */
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static void
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udi_detach (char *args, int from_tty)
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{
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remove_breakpoints (); /* Just in case there were any left in */
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if (UDIDisconnect (udi_session_id, UDIContinueSession))
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error ("UDIDisconnect() failed in udi_detach");
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/* Don't try to UDIDisconnect it again in udi_close, which is called from
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pop_target. */
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udi_session_id = -1;
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inferior_ptid = null_ptid;
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pop_target ();
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if (from_tty)
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printf_unfiltered ("Detaching from TIP\n");
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}
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/****************************************************************** UDI_RESUME
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** Tell the remote machine to resume. */
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static void
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udi_resume (ptid_t ptid, int step, enum target_signal sig)
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{
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UDIError tip_error;
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UDIUInt32 Steps = 1;
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UDIStepType StepType = UDIStepNatural;
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UDIRange Range;
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if (step) /* step 1 instruction */
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{
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tip_error = UDIStep (Steps, StepType, Range);
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if (!tip_error)
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return;
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fprintf_unfiltered (gdb_stderr, "UDIStep() error = %d\n", tip_error);
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error ("failed in udi_resume");
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}
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if (UDIExecute ())
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error ("UDIExecute() failed in udi_resume");
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}
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/******************************************************************** UDI_WAIT
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** Wait until the remote machine stops, then return,
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storing status in STATUS just as `wait' would. */
|
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static ptid_t
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udi_wait (ptid_t ptid, struct target_waitstatus *status)
|
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{
|
||
UDIInt32 MaxTime;
|
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UDIPId PId;
|
||
UDIInt32 StopReason;
|
||
UDISizeT CountDone;
|
||
int old_timeout = timeout;
|
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int old_immediate_quit = immediate_quit;
|
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int i;
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||
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status->kind = TARGET_WAITKIND_EXITED;
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status->value.integer = 0;
|
||
|
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/* wait for message to arrive. It should be:
|
||
If the target stops executing, udi_wait() should return.
|
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*/
|
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timeout = 0; /* Wait indefinetly for a message */
|
||
immediate_quit = 1; /* Helps ability to QUIT */
|
||
|
||
while (1)
|
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{
|
||
i = 0;
|
||
MaxTime = UDIWaitForever;
|
||
UDIWait (MaxTime, &PId, &StopReason);
|
||
QUIT; /* Let user quit if they want */
|
||
|
||
switch (StopReason & UDIGrossState)
|
||
{
|
||
case UDIStdoutReady:
|
||
if (UDIGetStdout (sbuf, (UDISizeT) SBUF_MAX, &CountDone))
|
||
/* This is said to happen if the program tries to output
|
||
a whole bunch of output (more than SBUF_MAX, I would
|
||
guess). It doesn't seem to happen with the simulator. */
|
||
warning ("UDIGetStdout() failed in udi_wait");
|
||
fwrite (sbuf, 1, CountDone, stdout);
|
||
gdb_flush (gdb_stdout);
|
||
continue;
|
||
|
||
case UDIStderrReady:
|
||
UDIGetStderr (sbuf, (UDISizeT) SBUF_MAX, &CountDone);
|
||
fwrite (sbuf, 1, CountDone, stderr);
|
||
gdb_flush (gdb_stderr);
|
||
continue;
|
||
|
||
case UDIStdinNeeded:
|
||
{
|
||
int ch;
|
||
i = 0;
|
||
do
|
||
{
|
||
ch = getchar ();
|
||
if (ch == EOF)
|
||
break;
|
||
sbuf[i++] = ch;
|
||
}
|
||
while (i < SBUF_MAX && ch != '\n');
|
||
UDIPutStdin (sbuf, (UDISizeT) i, &CountDone);
|
||
continue;
|
||
}
|
||
|
||
case UDIRunning:
|
||
/* In spite of the fact that we told UDIWait to wait forever, it will
|
||
return spuriously sometimes. */
|
||
case UDIStdinModeX:
|
||
continue;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
}
|
||
|
||
switch (StopReason & UDIGrossState)
|
||
{
|
||
case UDITrapped:
|
||
printf_unfiltered ("Am290*0 received vector number %d\n", StopReason >> 24);
|
||
|
||
switch ((StopReason >> 8) & 0xff)
|
||
{
|
||
case 0: /* Illegal opcode */
|
||
printf_unfiltered (" (break point)\n");
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TRAP;
|
||
break;
|
||
case 1: /* Unaligned Access */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_BUS;
|
||
break;
|
||
case 3:
|
||
case 4:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_FPE;
|
||
break;
|
||
case 5: /* Protection Violation */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
/* Why not SEGV? What is a Protection Violation? */
|
||
status->value.sig = TARGET_SIGNAL_ILL;
|
||
break;
|
||
case 6:
|
||
case 7:
|
||
case 8: /* User Instruction Mapping Miss */
|
||
case 9: /* User Data Mapping Miss */
|
||
case 10: /* Supervisor Instruction Mapping Miss */
|
||
case 11: /* Supervisor Data Mapping Miss */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_SEGV;
|
||
break;
|
||
case 12:
|
||
case 13:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_ILL;
|
||
break;
|
||
case 14: /* Timer */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_ALRM;
|
||
break;
|
||
case 15: /* Trace */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TRAP;
|
||
break;
|
||
case 16: /* INTR0 */
|
||
case 17: /* INTR1 */
|
||
case 18: /* INTR2 */
|
||
case 19: /* INTR3/Internal */
|
||
case 20: /* TRAP0 */
|
||
case 21: /* TRAP1 */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_INT;
|
||
break;
|
||
case 22: /* Floating-Point Exception */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
/* Why not FPE? */
|
||
status->value.sig = TARGET_SIGNAL_ILL;
|
||
break;
|
||
case 77: /* assert 77 */
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TRAP;
|
||
break;
|
||
default:
|
||
status->kind = TARGET_WAITKIND_EXITED;
|
||
status->value.integer = 0;
|
||
}
|
||
break;
|
||
case UDINotExecuting:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TERM;
|
||
break;
|
||
case UDIStopped:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TSTP;
|
||
break;
|
||
case UDIWarned:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_URG;
|
||
break;
|
||
case UDIStepped:
|
||
case UDIBreak:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_TRAP;
|
||
break;
|
||
case UDIWaiting:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_STOP;
|
||
break;
|
||
case UDIHalted:
|
||
status->kind = TARGET_WAITKIND_STOPPED;
|
||
status->value.sig = TARGET_SIGNAL_KILL;
|
||
break;
|
||
case UDIExited:
|
||
default:
|
||
status->kind = TARGET_WAITKIND_EXITED;
|
||
status->value.integer = 0;
|
||
}
|
||
|
||
timeout = old_timeout; /* Restore original timeout value */
|
||
immediate_quit = old_immediate_quit;
|
||
return inferior_ptid;
|
||
}
|
||
|
||
#if 0
|
||
/* Handy for debugging */
|
||
udi_pc (void)
|
||
{
|
||
UDIResource From;
|
||
UDIUInt32 *To;
|
||
UDICount Count;
|
||
UDISizeT Size = 4;
|
||
UDICount CountDone;
|
||
UDIBool HostEndian = 0;
|
||
UDIError err;
|
||
int pc[2];
|
||
unsigned long myregs[256];
|
||
int i;
|
||
|
||
From.Space = UDI29KPC;
|
||
From.Offset = 0;
|
||
To = (UDIUInt32 *) pc;
|
||
Count = 2;
|
||
|
||
err = UDIRead (From, To, Count, Size, &CountDone, HostEndian);
|
||
|
||
printf_unfiltered ("err = %d, CountDone = %d, pc[0] = 0x%x, pc[1] = 0x%x\n",
|
||
err, CountDone, pc[0], pc[1]);
|
||
|
||
udi_fetch_registers (-1);
|
||
|
||
printf_unfiltered ("other pc1 = 0x%x, pc0 = 0x%x\n", *(int *) ®isters[4 * PC_REGNUM],
|
||
*(int *) ®isters[4 * NPC_REGNUM]);
|
||
|
||
/* Now, read all the registers globally */
|
||
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = 0;
|
||
err = UDIRead (From, myregs, 256, 4, &CountDone, HostEndian);
|
||
|
||
printf ("err = %d, CountDone = %d\n", err, CountDone);
|
||
|
||
printf ("\n");
|
||
|
||
for (i = 0; i < 256; i += 2)
|
||
printf ("%d:\t%#10x\t%11d\t%#10x\t%11d\n", i, myregs[i], myregs[i],
|
||
myregs[i + 1], myregs[i + 1]);
|
||
printf ("\n");
|
||
|
||
return pc[0];
|
||
}
|
||
#endif
|
||
|
||
/********************************************************** UDI_FETCH_REGISTERS
|
||
* Read a remote register 'regno'.
|
||
* If regno==-1 then read all the registers.
|
||
*/
|
||
static void
|
||
udi_fetch_registers (int regno)
|
||
{
|
||
UDIResource From;
|
||
UDIUInt32 *To;
|
||
UDICount Count;
|
||
UDISizeT Size = 4;
|
||
UDICount CountDone;
|
||
UDIBool HostEndian = 0;
|
||
UDIError err;
|
||
int i;
|
||
|
||
if (regno >= 0)
|
||
{
|
||
fetch_register (regno);
|
||
return;
|
||
}
|
||
|
||
/* Gr1/rsp */
|
||
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = 1;
|
||
To = (UDIUInt32 *) & registers[4 * GR1_REGNUM];
|
||
Count = 1;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
register_valid[GR1_REGNUM] = 1;
|
||
|
||
#if defined(GR64_REGNUM) /* Read gr64-127 */
|
||
|
||
/* Global Registers gr64-gr95 */
|
||
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = 64;
|
||
To = (UDIUInt32 *) & registers[4 * GR64_REGNUM];
|
||
Count = 32;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
for (i = GR64_REGNUM; i < GR64_REGNUM + 32; i++)
|
||
register_valid[i] = 1;
|
||
|
||
#endif /* GR64_REGNUM */
|
||
|
||
/* Global Registers gr96-gr127 */
|
||
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = 96;
|
||
To = (UDIUInt32 *) & registers[4 * GR96_REGNUM];
|
||
Count = 32;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
for (i = GR96_REGNUM; i < GR96_REGNUM + 32; i++)
|
||
register_valid[i] = 1;
|
||
|
||
/* Local Registers */
|
||
|
||
From.Space = UDI29KLocalRegs;
|
||
From.Offset = 0;
|
||
To = (UDIUInt32 *) & registers[4 * LR0_REGNUM];
|
||
Count = 128;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
for (i = LR0_REGNUM; i < LR0_REGNUM + 128; i++)
|
||
register_valid[i] = 1;
|
||
|
||
/* Protected Special Registers */
|
||
|
||
From.Space = UDI29KSpecialRegs;
|
||
From.Offset = 0;
|
||
To = (UDIUInt32 *) & registers[4 * SR_REGNUM (0)];
|
||
Count = 15;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
for (i = SR_REGNUM (0); i < SR_REGNUM (0) + 15; i++)
|
||
register_valid[i] = 1;
|
||
|
||
if (USE_SHADOW_PC)
|
||
{ /* Let regno_to_srnum() handle the register number */
|
||
fetch_register (NPC_REGNUM);
|
||
fetch_register (PC_REGNUM);
|
||
fetch_register (PC2_REGNUM);
|
||
|
||
/* Unprotected Special Registers sr128-sr135 */
|
||
|
||
From.Space = UDI29KSpecialRegs;
|
||
From.Offset = 128;
|
||
To = (UDIUInt32 *) & registers[4 * SR_REGNUM (128)];
|
||
Count = 135 - 128 + 1;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
for (i = SR_REGNUM (128); i < SR_REGNUM (128) + 135 - 128 + 1; i++)
|
||
register_valid[i] = 1;
|
||
}
|
||
|
||
if (remote_debug)
|
||
{
|
||
fprintf_unfiltered (gdb_stdlog, "Fetching all registers\n");
|
||
fprintf_unfiltered (gdb_stdlog,
|
||
"Fetching PC0 = 0x%x, PC1 = 0x%x, PC2 = 0x%x\n",
|
||
read_register (NPC_REGNUM),
|
||
read_register (PC_REGNUM),
|
||
read_register (PC2_REGNUM));
|
||
}
|
||
|
||
/* There doesn't seem to be any way to get these. */
|
||
{
|
||
int val = -1;
|
||
supply_register (FPE_REGNUM, (char *) &val);
|
||
supply_register (INTE_REGNUM, (char *) &val);
|
||
supply_register (FPS_REGNUM, (char *) &val);
|
||
supply_register (EXO_REGNUM, (char *) &val);
|
||
}
|
||
}
|
||
|
||
|
||
/********************************************************* UDI_STORE_REGISTERS
|
||
** Store register regno into the target.
|
||
* If regno==-1 then store all the registers.
|
||
*/
|
||
|
||
static void
|
||
udi_store_registers (int regno)
|
||
{
|
||
UDIUInt32 *From;
|
||
UDIResource To;
|
||
UDICount Count;
|
||
UDISizeT Size = 4;
|
||
UDICount CountDone;
|
||
UDIBool HostEndian = 0;
|
||
|
||
if (regno >= 0)
|
||
{
|
||
store_register (regno);
|
||
return;
|
||
}
|
||
|
||
if (remote_debug)
|
||
{
|
||
fprintf_unfiltered (gdb_stdlog, "Storing all registers\n");
|
||
fprintf_unfiltered (gdb_stdlog,
|
||
"PC0 = 0x%x, PC1 = 0x%x, PC2 = 0x%x\n",
|
||
read_register (NPC_REGNUM),
|
||
read_register (PC_REGNUM),
|
||
read_register (PC2_REGNUM));
|
||
}
|
||
|
||
/* Gr1/rsp */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * GR1_REGNUM];
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = 1;
|
||
Count = 1;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
#if defined(GR64_REGNUM)
|
||
|
||
/* Global registers gr64-gr95 */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * GR64_REGNUM];
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = 64;
|
||
Count = 32;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
#endif /* GR64_REGNUM */
|
||
|
||
/* Global registers gr96-gr127 */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * GR96_REGNUM];
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = 96;
|
||
Count = 32;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
/* Local Registers */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * LR0_REGNUM];
|
||
To.Space = UDI29KLocalRegs;
|
||
To.Offset = 0;
|
||
Count = 128;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
|
||
/* Protected Special Registers *//* VAB through TMR */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * SR_REGNUM (0)];
|
||
To.Space = UDI29KSpecialRegs;
|
||
To.Offset = 0;
|
||
Count = 10;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
/* PC0, PC1, PC2 possibly as shadow registers */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * SR_REGNUM (10)];
|
||
To.Space = UDI29KSpecialRegs;
|
||
Count = 3;
|
||
if (USE_SHADOW_PC)
|
||
To.Offset = 20; /* SPC0 */
|
||
else
|
||
To.Offset = 10; /* PC0 */
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
/* PC1 via UDI29KPC */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * PC_REGNUM];
|
||
To.Space = UDI29KPC;
|
||
To.Offset = 0; /* PC1 */
|
||
Count = 1;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
/* LRU and MMU */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * SR_REGNUM (13)];
|
||
To.Space = UDI29KSpecialRegs;
|
||
To.Offset = 13;
|
||
Count = 2;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
/* Unprotected Special Registers */
|
||
|
||
From = (UDIUInt32 *) & registers[4 * SR_REGNUM (128)];
|
||
To.Space = UDI29KSpecialRegs;
|
||
To.Offset = 128;
|
||
Count = 135 - 128 + 1;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIWrite() failed in udi_store_regisetrs");
|
||
|
||
registers_changed ();
|
||
}
|
||
|
||
/****************************************************** UDI_PREPARE_TO_STORE */
|
||
/* Get ready to modify the registers array. On machines which store
|
||
individual registers, this doesn't need to do anything. On machines
|
||
which store all the registers in one fell swoop, this makes sure
|
||
that registers contains all the registers from the program being
|
||
debugged. */
|
||
|
||
static void
|
||
udi_prepare_to_store (void)
|
||
{
|
||
/* Do nothing, since we can store individual regs */
|
||
}
|
||
|
||
/********************************************************** TRANSLATE_ADDR */
|
||
static CORE_ADDR
|
||
translate_addr (CORE_ADDR addr)
|
||
{
|
||
#if defined(ULTRA3) && defined(KERNEL_DEBUGGING)
|
||
/* Check for a virtual address in the kernel */
|
||
/* Assume physical address of ublock is in paddr_u register */
|
||
/* FIXME: doesn't work for user virtual addresses */
|
||
if (addr >= UVADDR)
|
||
{
|
||
/* PADDR_U register holds the physical address of the ublock */
|
||
CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM);
|
||
return (i + addr - (CORE_ADDR) UVADDR);
|
||
}
|
||
else
|
||
{
|
||
return (addr);
|
||
}
|
||
#else
|
||
return (addr);
|
||
#endif
|
||
}
|
||
/************************************************* UDI_XFER_INFERIOR_MEMORY */
|
||
/* FIXME! Merge these two. */
|
||
static int
|
||
udi_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
|
||
struct mem_attrib *attrib ATTRIBUTE_UNUSED,
|
||
struct target_ops *target ATTRIBUTE_UNUSED)
|
||
{
|
||
|
||
memaddr = translate_addr (memaddr);
|
||
|
||
if (write)
|
||
return udi_write_inferior_memory (memaddr, myaddr, len);
|
||
else
|
||
return udi_read_inferior_memory (memaddr, myaddr, len);
|
||
}
|
||
|
||
/********************************************************** UDI_FILES_INFO */
|
||
static void
|
||
udi_files_info (struct target_ops *target)
|
||
{
|
||
printf_unfiltered ("\tAttached to UDI socket to %s", udi_config_id);
|
||
if (prog_name != NULL)
|
||
printf_unfiltered ("and running program %s", prog_name);
|
||
printf_unfiltered (".\n");
|
||
}
|
||
|
||
/**************************************************** UDI_INSERT_BREAKPOINT */
|
||
static int
|
||
udi_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
|
||
{
|
||
int cnt;
|
||
UDIError err;
|
||
|
||
for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
|
||
if (bkpt_table[cnt].Type == 0) /* Find first free slot */
|
||
break;
|
||
|
||
if (cnt >= BKPT_TABLE_SIZE)
|
||
error ("Too many breakpoints set");
|
||
|
||
bkpt_table[cnt].Addr.Offset = addr;
|
||
bkpt_table[cnt].Addr.Space = UDI29KIRAMSpace;
|
||
bkpt_table[cnt].PassCount = 1;
|
||
bkpt_table[cnt].Type = UDIBreakFlagExecute;
|
||
|
||
err = UDISetBreakpoint (bkpt_table[cnt].Addr,
|
||
bkpt_table[cnt].PassCount,
|
||
bkpt_table[cnt].Type,
|
||
&bkpt_table[cnt].BreakId);
|
||
|
||
if (err == 0)
|
||
return 0; /* Success */
|
||
|
||
bkpt_table[cnt].Type = 0;
|
||
error ("UDISetBreakpoint returned error code %d\n", err);
|
||
}
|
||
|
||
/**************************************************** UDI_REMOVE_BREAKPOINT */
|
||
static int
|
||
udi_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
|
||
{
|
||
int cnt;
|
||
UDIError err;
|
||
|
||
for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
|
||
if (bkpt_table[cnt].Addr.Offset == addr) /* Find matching breakpoint */
|
||
break;
|
||
|
||
if (cnt >= BKPT_TABLE_SIZE)
|
||
error ("Can't find breakpoint in table");
|
||
|
||
bkpt_table[cnt].Type = 0;
|
||
|
||
err = UDIClearBreakpoint (bkpt_table[cnt].BreakId);
|
||
if (err == 0)
|
||
return 0; /* Success */
|
||
|
||
error ("UDIClearBreakpoint returned error code %d\n", err);
|
||
}
|
||
|
||
static void
|
||
udi_kill (void)
|
||
{
|
||
|
||
#if 0
|
||
/*
|
||
UDIStop does not really work as advertised. It causes the TIP to close it's
|
||
connection, which usually results in GDB dying with a SIGPIPE. For now, we
|
||
just invoke udi_close, which seems to get things right.
|
||
*/
|
||
UDIStop ();
|
||
|
||
udi_session_id = -1;
|
||
inferior_ptid = null_ptid;
|
||
|
||
if (from_tty)
|
||
printf_unfiltered ("Target has been stopped.");
|
||
#endif /* 0 */
|
||
#if 0
|
||
udi_close (0);
|
||
pop_target ();
|
||
#endif /* 0 */
|
||
|
||
/* Keep the target around, e.g. so "run" can do the right thing when
|
||
we are already debugging something. */
|
||
|
||
if (UDIDisconnect (udi_session_id, UDITerminateSession))
|
||
{
|
||
warning ("UDIDisconnect() failed");
|
||
}
|
||
|
||
/* Do not try to close udi_session_id again, later in the program. */
|
||
udi_session_id = -1;
|
||
inferior_ptid = null_ptid;
|
||
}
|
||
|
||
/*
|
||
Load a program into the target. Args are: `program {options}'. The options
|
||
are used to control loading of the program, and are NOT passed onto the
|
||
loaded code as arguments. (You need to use the `run' command to do that.)
|
||
|
||
The options are:
|
||
-ms %d Set mem stack size to %d
|
||
-rs %d Set regular stack size to %d
|
||
-i send init info (default)
|
||
-noi don't send init info
|
||
-[tT] Load Text section
|
||
-[dD] Load Data section
|
||
-[bB] Load BSS section
|
||
-[lL] Load Lit section
|
||
*/
|
||
|
||
static void
|
||
download (char *load_arg_string, int from_tty)
|
||
{
|
||
#define DEFAULT_MEM_STACK_SIZE 0x6000
|
||
#define DEFAULT_REG_STACK_SIZE 0x2000
|
||
|
||
char *token;
|
||
char *filename;
|
||
asection *section;
|
||
bfd *pbfd;
|
||
UDIError err;
|
||
int load_text = 1, load_data = 1, load_bss = 1, load_lit = 1;
|
||
|
||
address_ranges[0].Space = UDI29KIRAMSpace;
|
||
address_ranges[0].Offset = 0xffffffff;
|
||
address_ranges[0].Size = 0;
|
||
|
||
address_ranges[1].Space = UDI29KDRAMSpace;
|
||
address_ranges[1].Offset = 0xffffffff;
|
||
address_ranges[1].Size = 0;
|
||
|
||
stack_sizes[0] = DEFAULT_REG_STACK_SIZE;
|
||
stack_sizes[1] = DEFAULT_MEM_STACK_SIZE;
|
||
|
||
dont_repeat ();
|
||
|
||
filename = strtok (load_arg_string, " \t");
|
||
if (!filename)
|
||
error ("Must specify at least a file name with the load command");
|
||
|
||
filename = tilde_expand (filename);
|
||
make_cleanup (xfree, filename);
|
||
|
||
while (token = strtok (NULL, " \t"))
|
||
{
|
||
if (token[0] == '-')
|
||
{
|
||
token++;
|
||
|
||
if (STREQ (token, "ms"))
|
||
stack_sizes[1] = atol (strtok (NULL, " \t"));
|
||
else if (STREQ (token, "rs"))
|
||
stack_sizes[0] = atol (strtok (NULL, " \t"));
|
||
else
|
||
{
|
||
load_text = load_data = load_bss = load_lit = 0;
|
||
|
||
while (*token)
|
||
{
|
||
switch (*token++)
|
||
{
|
||
case 't':
|
||
case 'T':
|
||
load_text = 1;
|
||
break;
|
||
case 'd':
|
||
case 'D':
|
||
load_data = 1;
|
||
break;
|
||
case 'b':
|
||
case 'B':
|
||
load_bss = 1;
|
||
break;
|
||
case 'l':
|
||
case 'L':
|
||
load_lit = 1;
|
||
break;
|
||
default:
|
||
error ("Unknown UDI load option -%s", token - 1);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
pbfd = bfd_openr (filename, gnutarget);
|
||
|
||
if (!pbfd)
|
||
/* FIXME: should be using bfd_errmsg, not assuming it was
|
||
bfd_error_system_call. */
|
||
perror_with_name (filename);
|
||
|
||
/* FIXME: should be checking for errors from bfd_close (for one thing,
|
||
on error it does not free all the storage associated with the
|
||
bfd). */
|
||
make_cleanup_bfd_close (pbfd);
|
||
|
||
QUIT;
|
||
immediate_quit++;
|
||
|
||
if (!bfd_check_format (pbfd, bfd_object))
|
||
error ("It doesn't seem to be an object file");
|
||
|
||
for (section = pbfd->sections; section; section = section->next)
|
||
{
|
||
if (bfd_get_section_flags (pbfd, section) & SEC_ALLOC)
|
||
{
|
||
UDIResource To;
|
||
UDICount Count;
|
||
unsigned long section_size, section_end;
|
||
const char *section_name;
|
||
|
||
section_name = bfd_get_section_name (pbfd, section);
|
||
if (STREQ (section_name, ".text") && !load_text)
|
||
continue;
|
||
else if (STREQ (section_name, ".data") && !load_data)
|
||
continue;
|
||
else if (STREQ (section_name, ".bss") && !load_bss)
|
||
continue;
|
||
else if (STREQ (section_name, ".lit") && !load_lit)
|
||
continue;
|
||
|
||
To.Offset = bfd_get_section_vma (pbfd, section);
|
||
section_size = bfd_section_size (pbfd, section);
|
||
section_end = To.Offset + section_size;
|
||
|
||
if (section_size == 0)
|
||
/* This is needed at least in the BSS case, where the code
|
||
below starts writing before it even checks the size. */
|
||
continue;
|
||
|
||
printf_unfiltered ("[Loading section %s at %x (%d bytes)]\n",
|
||
section_name,
|
||
To.Offset,
|
||
section_size);
|
||
|
||
if (bfd_get_section_flags (pbfd, section) & SEC_CODE)
|
||
{
|
||
To.Space = UDI29KIRAMSpace;
|
||
|
||
address_ranges[0].Offset = min (address_ranges[0].Offset,
|
||
To.Offset);
|
||
address_ranges[0].Size = max (address_ranges[0].Size,
|
||
section_end
|
||
- address_ranges[0].Offset);
|
||
}
|
||
else
|
||
{
|
||
To.Space = UDI29KDRAMSpace;
|
||
|
||
address_ranges[1].Offset = min (address_ranges[1].Offset,
|
||
To.Offset);
|
||
address_ranges[1].Size = max (address_ranges[1].Size,
|
||
section_end
|
||
- address_ranges[1].Offset);
|
||
}
|
||
|
||
if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) /* Text, data or lit */
|
||
{
|
||
file_ptr fptr;
|
||
|
||
fptr = 0;
|
||
|
||
while (section_size > 0)
|
||
{
|
||
char buffer[1024];
|
||
|
||
Count = min (section_size, 1024);
|
||
|
||
bfd_get_section_contents (pbfd, section, buffer, fptr,
|
||
Count);
|
||
|
||
err = UDIWrite ((UDIHostMemPtr) buffer, /* From */
|
||
To, /* To */
|
||
Count, /* Count */
|
||
(UDISizeT) 1, /* Size */
|
||
&Count, /* CountDone */
|
||
(UDIBool) 0); /* HostEndian */
|
||
if (err)
|
||
error ("UDIWrite failed, error = %d", err);
|
||
|
||
To.Offset += Count;
|
||
fptr += Count;
|
||
section_size -= Count;
|
||
}
|
||
}
|
||
else
|
||
/* BSS */
|
||
{
|
||
UDIResource From;
|
||
unsigned long zero = 0;
|
||
|
||
/* Write a zero byte at the vma */
|
||
/* FIXME: Broken for sections of 1-3 bytes (we test for
|
||
zero above). */
|
||
err = UDIWrite ((UDIHostMemPtr) & zero, /* From */
|
||
To, /* To */
|
||
(UDICount) 1, /* Count */
|
||
(UDISizeT) 4, /* Size */
|
||
&Count, /* CountDone */
|
||
(UDIBool) 0); /* HostEndian */
|
||
if (err)
|
||
error ("UDIWrite failed, error = %d", err);
|
||
|
||
From = To;
|
||
To.Offset += 4;
|
||
|
||
/* Now, duplicate it for the length of the BSS */
|
||
err = UDICopy (From, /* From */
|
||
To, /* To */
|
||
(UDICount) (section_size / 4 - 1), /* Count */
|
||
(UDISizeT) 4, /* Size */
|
||
&Count, /* CountDone */
|
||
(UDIBool) 1); /* Direction */
|
||
if (err)
|
||
{
|
||
char message[100];
|
||
int xerr;
|
||
|
||
xerr = UDIGetErrorMsg (err, 100, message, &Count);
|
||
if (!xerr)
|
||
fprintf_unfiltered (gdb_stderr, "Error is %s\n", message);
|
||
else
|
||
fprintf_unfiltered (gdb_stderr, "xerr is %d\n", xerr);
|
||
error ("UDICopy failed, error = %d", err);
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
entry.Space = UDI29KIRAMSpace;
|
||
entry.Offset = bfd_get_start_address (pbfd);
|
||
|
||
immediate_quit--;
|
||
}
|
||
|
||
/* Function to download an image into the remote target. */
|
||
|
||
static void
|
||
udi_load (char *args, int from_tty)
|
||
{
|
||
download (args, from_tty);
|
||
|
||
/* As a convenience, pick up any symbol info that is in the program
|
||
being loaded. Note that we assume that the program is the``mainline'';
|
||
if this is not always true, then this code will need to be augmented. */
|
||
symbol_file_add (strtok (args, " \t"), from_tty, NULL, 1, 0);
|
||
|
||
/* Getting new symbols may change our opinion about what is
|
||
frameless. */
|
||
reinit_frame_cache ();
|
||
}
|
||
|
||
/*************************************************** UDI_WRITE_INFERIOR_MEMORY
|
||
** Copy LEN bytes of data from debugger memory at MYADDR
|
||
to inferior's memory at MEMADDR. Returns number of bytes written. */
|
||
static int
|
||
udi_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
|
||
{
|
||
int nwritten = 0;
|
||
UDIUInt32 *From;
|
||
UDIResource To;
|
||
UDICount Count;
|
||
UDISizeT Size = 1;
|
||
UDICount CountDone = 0;
|
||
UDIBool HostEndian = 0;
|
||
|
||
To.Space = udi_memory_space (memaddr);
|
||
From = (UDIUInt32 *) myaddr;
|
||
|
||
while (nwritten < len)
|
||
{
|
||
Count = len - nwritten;
|
||
if (Count > MAXDATA)
|
||
Count = MAXDATA;
|
||
To.Offset = memaddr + nwritten;
|
||
if (UDIWrite (From, To, Count, Size, &CountDone, HostEndian))
|
||
{
|
||
error ("UDIWrite() failed in udi_write_inferior_memory");
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
nwritten += CountDone;
|
||
From += CountDone;
|
||
}
|
||
}
|
||
return (nwritten);
|
||
}
|
||
|
||
/**************************************************** UDI_READ_INFERIOR_MEMORY
|
||
** Read LEN bytes from inferior memory at MEMADDR. Put the result
|
||
at debugger address MYADDR. Returns number of bytes read. */
|
||
static int
|
||
udi_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
|
||
{
|
||
int nread = 0;
|
||
UDIResource From;
|
||
UDIUInt32 *To;
|
||
UDICount Count;
|
||
UDISizeT Size = 1;
|
||
UDICount CountDone = 0;
|
||
UDIBool HostEndian = 0;
|
||
UDIError err;
|
||
|
||
From.Space = udi_memory_space (memaddr);
|
||
To = (UDIUInt32 *) myaddr;
|
||
|
||
while (nread < len)
|
||
{
|
||
Count = len - nread;
|
||
if (Count > MAXDATA)
|
||
Count = MAXDATA;
|
||
From.Offset = memaddr + nread;
|
||
if (err = UDIRead (From, To, Count, Size, &CountDone, HostEndian))
|
||
{
|
||
error ("UDIRead() failed in udi_read_inferior_memory");
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
nread += CountDone;
|
||
To += CountDone;
|
||
}
|
||
}
|
||
return (nread);
|
||
}
|
||
|
||
/********************************************************************* WARNING
|
||
*/
|
||
udi_warning (int num)
|
||
{
|
||
error ("ERROR while loading program into remote TIP: $d\n", num);
|
||
}
|
||
|
||
|
||
/*****************************************************************************/
|
||
/* Fetch a single register indicatated by 'regno'.
|
||
* Returns 0/-1 on success/failure.
|
||
*/
|
||
static void
|
||
fetch_register (int regno)
|
||
{
|
||
UDIResource From;
|
||
UDIUInt32 To;
|
||
UDICount Count = 1;
|
||
UDISizeT Size = 4;
|
||
UDICount CountDone;
|
||
UDIBool HostEndian = 0;
|
||
UDIError err;
|
||
int result;
|
||
|
||
if (regno == GR1_REGNUM)
|
||
{
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = 1;
|
||
}
|
||
else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
|
||
{
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = (regno - GR96_REGNUM) + 96;;
|
||
}
|
||
|
||
#if defined(GR64_REGNUM)
|
||
|
||
else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32)
|
||
{
|
||
From.Space = UDI29KGlobalRegs;
|
||
From.Offset = (regno - GR64_REGNUM) + 64;
|
||
}
|
||
|
||
#endif /* GR64_REGNUM */
|
||
|
||
else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
|
||
{
|
||
From.Space = UDI29KLocalRegs;
|
||
From.Offset = (regno - LR0_REGNUM);
|
||
}
|
||
else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM)
|
||
{
|
||
int val = -1;
|
||
/*supply_register(160 + (regno - FPE_REGNUM),(char *) &val); */
|
||
supply_register (regno, (char *) &val);
|
||
return; /* Pretend Success */
|
||
}
|
||
else
|
||
{
|
||
From.Space = UDI29KSpecialRegs;
|
||
From.Offset = regnum_to_srnum (regno);
|
||
}
|
||
|
||
if (err = UDIRead (From, &To, Count, Size, &CountDone, HostEndian))
|
||
error ("UDIRead() failed in udi_fetch_registers");
|
||
|
||
supply_register (regno, (char *) &To);
|
||
|
||
if (remote_debug)
|
||
fprintf_unfiltered (gdb_stdlog, "Fetching register %s = 0x%x\n",
|
||
REGISTER_NAME (regno), To);
|
||
}
|
||
/*****************************************************************************/
|
||
/* Store a single register indicated by 'regno'.
|
||
* Returns 0/-1 on success/failure.
|
||
*/
|
||
static int
|
||
store_register (int regno)
|
||
{
|
||
int result;
|
||
UDIUInt32 From;
|
||
UDIResource To;
|
||
UDICount Count = 1;
|
||
UDISizeT Size = 4;
|
||
UDICount CountDone;
|
||
UDIBool HostEndian = 0;
|
||
|
||
From = read_register (regno); /* get data value */
|
||
|
||
if (remote_debug)
|
||
fprintf_unfiltered (gdb_stdlog, "Storing register %s = 0x%x\n",
|
||
REGISTER_NAME (regno), From);
|
||
|
||
if (regno == GR1_REGNUM)
|
||
{
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = 1;
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
/* Setting GR1 changes the numbers of all the locals, so invalidate the
|
||
* register cache. Do this *after* calling read_register, because we want
|
||
* read_register to return the value that write_register has just stuffed
|
||
* into the registers array, not the value of the register fetched from
|
||
* the inferior.
|
||
*/
|
||
registers_changed ();
|
||
}
|
||
#if defined(GR64_REGNUM)
|
||
else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32)
|
||
{
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = (regno - GR64_REGNUM) + 64;
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
}
|
||
#endif /* GR64_REGNUM */
|
||
else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
|
||
{
|
||
To.Space = UDI29KGlobalRegs;
|
||
To.Offset = (regno - GR96_REGNUM) + 96;
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
}
|
||
else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
|
||
{
|
||
To.Space = UDI29KLocalRegs;
|
||
To.Offset = (regno - LR0_REGNUM);
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
}
|
||
else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM)
|
||
return 0; /* Pretend Success */
|
||
else if (regno == PC_REGNUM)
|
||
{
|
||
/* PC1 via UDI29KPC */
|
||
|
||
To.Space = UDI29KPC;
|
||
To.Offset = 0; /* PC1 */
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
|
||
/* Writing to this loc actually changes the values of pc0 & pc1 */
|
||
|
||
register_valid[PC_REGNUM] = 0; /* pc1 */
|
||
register_valid[NPC_REGNUM] = 0; /* pc0 */
|
||
}
|
||
else
|
||
/* An unprotected or protected special register */
|
||
{
|
||
To.Space = UDI29KSpecialRegs;
|
||
To.Offset = regnum_to_srnum (regno);
|
||
result = UDIWrite (&From, To, Count, Size, &CountDone, HostEndian);
|
||
}
|
||
|
||
if (result != 0)
|
||
error ("UDIWrite() failed in store_registers");
|
||
|
||
return 0;
|
||
}
|
||
/********************************************************** REGNUM_TO_SRNUM */
|
||
/*
|
||
* Convert a gdb special register number to a 29000 special register number.
|
||
*/
|
||
static int
|
||
regnum_to_srnum (int regno)
|
||
{
|
||
switch (regno)
|
||
{
|
||
case VAB_REGNUM:
|
||
return (0);
|
||
case OPS_REGNUM:
|
||
return (1);
|
||
case CPS_REGNUM:
|
||
return (2);
|
||
case CFG_REGNUM:
|
||
return (3);
|
||
case CHA_REGNUM:
|
||
return (4);
|
||
case CHD_REGNUM:
|
||
return (5);
|
||
case CHC_REGNUM:
|
||
return (6);
|
||
case RBP_REGNUM:
|
||
return (7);
|
||
case TMC_REGNUM:
|
||
return (8);
|
||
case TMR_REGNUM:
|
||
return (9);
|
||
case NPC_REGNUM:
|
||
return (USE_SHADOW_PC ? (20) : (10));
|
||
case PC_REGNUM:
|
||
return (USE_SHADOW_PC ? (21) : (11));
|
||
case PC2_REGNUM:
|
||
return (USE_SHADOW_PC ? (22) : (12));
|
||
case MMU_REGNUM:
|
||
return (13);
|
||
case LRU_REGNUM:
|
||
return (14);
|
||
case IPC_REGNUM:
|
||
return (128);
|
||
case IPA_REGNUM:
|
||
return (129);
|
||
case IPB_REGNUM:
|
||
return (130);
|
||
case Q_REGNUM:
|
||
return (131);
|
||
case ALU_REGNUM:
|
||
return (132);
|
||
case BP_REGNUM:
|
||
return (133);
|
||
case FC_REGNUM:
|
||
return (134);
|
||
case CR_REGNUM:
|
||
return (135);
|
||
case FPE_REGNUM:
|
||
return (160);
|
||
case INTE_REGNUM:
|
||
return (161);
|
||
case FPS_REGNUM:
|
||
return (162);
|
||
case EXO_REGNUM:
|
||
return (164);
|
||
default:
|
||
return (255); /* Failure ? */
|
||
}
|
||
}
|
||
/****************************************************************************/
|
||
/*
|
||
* Determine the Target memory space qualifier based on the addr.
|
||
* FIXME: Can't distinguis I_ROM/D_ROM.
|
||
* FIXME: Doesn't know anything about I_CACHE/D_CACHE.
|
||
*/
|
||
static CPUSpace
|
||
udi_memory_space (CORE_ADDR addr)
|
||
{
|
||
UDIUInt32 tstart = IMemStart;
|
||
UDIUInt32 tend = tstart + IMemSize;
|
||
UDIUInt32 dstart = DMemStart;
|
||
UDIUInt32 dend = tstart + DMemSize;
|
||
UDIUInt32 rstart = RMemStart;
|
||
UDIUInt32 rend = tstart + RMemSize;
|
||
|
||
if (((UDIUInt32) addr >= tstart) && ((UDIUInt32) addr < tend))
|
||
{
|
||
return UDI29KIRAMSpace;
|
||
}
|
||
else if (((UDIUInt32) addr >= dstart) && ((UDIUInt32) addr < dend))
|
||
{
|
||
return UDI29KDRAMSpace;
|
||
}
|
||
else if (((UDIUInt32) addr >= rstart) && ((UDIUInt32) addr < rend))
|
||
{
|
||
/* FIXME: how do we determine between D_ROM and I_ROM */
|
||
return UDI29KIROMSpace;
|
||
}
|
||
else /* FIXME: what do me do now? */
|
||
return UDI29KDRAMSpace; /* Hmmm! */
|
||
}
|
||
/*********************************************************************** STUBS
|
||
*/
|
||
|
||
void
|
||
convert16 (void)
|
||
{;
|
||
}
|
||
void
|
||
convert32 (void)
|
||
{;
|
||
}
|
||
struct ui_file *EchoFile = 0; /* used for debugging */
|
||
int QuietMode = 0; /* used for debugging */
|
||
|
||
#ifdef NO_HIF_SUPPORT
|
||
service_HIF (union msg_t *msg)
|
||
{
|
||
return (0); /* Emulate a failure */
|
||
}
|
||
#endif
|
||
|
||
/* Target_ops vector. Not static because there does not seem to be
|
||
any portable way to do a forward declaration of a static variable.
|
||
The RS/6000 doesn't like "extern" followed by "static"; SunOS
|
||
/bin/cc doesn't like "static" twice. */
|
||
|
||
struct target_ops udi_ops;
|
||
|
||
static void
|
||
init_udi_ops (void)
|
||
{
|
||
udi_ops.to_shortname = "udi";
|
||
udi_ops.to_longname = "Remote UDI connected TIP";
|
||
udi_ops.to_doc = "Remote debug an AMD 29k using UDI socket connection to TIP process.\n\
|
||
Arguments are\n\
|
||
`configuration-id AF_INET hostname port-number'\n\
|
||
To connect via the network, where hostname and port-number specify the\n\
|
||
host and port where you can connect via UDI.\n\
|
||
configuration-id is unused.\n\
|
||
\n\
|
||
`configuration-id AF_UNIX socket-name tip-program'\n\
|
||
To connect using a local connection to the \"tip.exe\" program which is\n\
|
||
supplied by AMD. If socket-name specifies an AF_UNIX socket then the\n\
|
||
tip program must already be started; connect to it using that socket.\n\
|
||
If not, start up tip-program, which should be the name of the tip\n\
|
||
program. If appropriate, the PATH environment variable is searched.\n\
|
||
configuration-id is unused.\n\
|
||
\n\
|
||
`configuration-id'\n\
|
||
Look up the configuration in ./udi_soc or /etc/udi_soc, which\n\
|
||
are files containing lines in the above formats. configuration-id is\n\
|
||
used to pick which line of the file to use.";
|
||
udi_ops.to_open = udi_open;
|
||
udi_ops.to_close = udi_close;
|
||
udi_ops.to_attach = udi_attach;
|
||
udi_ops.to_detach = udi_detach;
|
||
udi_ops.to_resume = udi_resume;
|
||
udi_ops.to_wait = udi_wait;
|
||
udi_ops.to_fetch_registers = udi_fetch_registers;
|
||
udi_ops.to_store_registers = udi_store_registers;
|
||
udi_ops.to_prepare_to_store = udi_prepare_to_store;
|
||
udi_ops.to_xfer_memory = udi_xfer_inferior_memory;
|
||
udi_ops.to_files_info = udi_files_info;
|
||
udi_ops.to_insert_breakpoint = udi_insert_breakpoint;
|
||
udi_ops.to_remove_breakpoint = udi_remove_breakpoint;
|
||
udi_ops.to_terminal_init = 0;
|
||
udi_ops.to_terminal_inferior = 0;
|
||
udi_ops.to_terminal_ours_for_output = 0;
|
||
udi_ops.to_terminal_ours = 0;
|
||
udi_ops.to_terminal_info = 0;
|
||
udi_ops.to_kill = udi_kill;
|
||
udi_ops.to_load = udi_load;
|
||
udi_ops.to_lookup_symbol = 0;
|
||
udi_ops.to_create_inferior = udi_create_inferior;
|
||
udi_ops.to_mourn_inferior = udi_mourn;
|
||
udi_ops.to_can_run = 0;
|
||
udi_ops.to_notice_signals = 0;
|
||
udi_ops.to_thread_alive = 0;
|
||
udi_ops.to_stop = 0;
|
||
udi_ops.to_stratum = process_stratum;
|
||
udi_ops.DONT_USE = 0;
|
||
udi_ops.to_has_all_memory = 1;
|
||
udi_ops.to_has_memory = 1;
|
||
udi_ops.to_has_stack = 1;
|
||
udi_ops.to_has_registers = 1;
|
||
udi_ops.to_has_execution = 1;
|
||
udi_ops.to_sections = 0;
|
||
udi_ops.to_sections_end = 0;
|
||
udi_ops.to_magic = OPS_MAGIC;
|
||
};
|
||
|
||
void
|
||
_initialize_remote_udi (void)
|
||
{
|
||
init_udi_ops ();
|
||
add_target (&udi_ops);
|
||
}
|