* remote-hms.c (hms_ops): Change ref of hr_load_image
to gr_load_image. (dcache_flush, dcache_hit, dcache_value, dcache_fetch, dcache_poke, dcache_init): Deleted. (hms_open, hms_resume, hms_fetch_word, hms_store_word): Use dcache routines provided by remote-util.h
This commit is contained in:
Steve Chamberlain
parent
d2d0e51de4
commit
03fc5a0b43
2 changed files with 131 additions and 291 deletions
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@ -2,6 +2,10 @@ Thu Jan 26 10:49:59 1995 Steve Chamberlain <sac@splat>
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* remote-hms.c (hms_ops): Change ref of hr_load_image
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to gr_load_image.
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(dcache_flush, dcache_hit, dcache_value, dcache_fetch,
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dcache_poke, dcache_init): Deleted.
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(hms_open, hms_resume, hms_fetch_word, hms_store_word):
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Use dcache routines provided by remote-util.h
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Thu Jan 26 12:08:31 1995 Michael Meissner <meissner@cygnus.com>
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418
gdb/remote-hms.c
418
gdb/remote-hms.c
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@ -1,23 +1,23 @@
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/* Remote debugging interface for Hitachi HMS Monitor Version 1.0
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Copyright 1992, 1993, 1994 Free Software Foundation, Inc.
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Copyright 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by Steve Chamberlain
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(sac@cygnus.com).
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This file is part of GDB.
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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 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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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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "inferior.h"
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@ -33,7 +33,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "target.h"
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#include "gdbcore.h"
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#include "serial.h"
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#include "remote-utils.h"
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/* External data declarations */
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extern int stop_soon_quietly; /* for wait_for_inferior */
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@ -51,180 +51,11 @@ static void hms_drain ();
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static void add_commands ();
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static void remove_commands ();
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static int quiet = 1; /* FIXME - can be removed after Dec '94 */
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static int quiet = 1; /* FIXME - can be removed after Dec '94 */
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static DCACHE *remote_dcache;
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serial_t desc;
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/***********************************************************************/
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/* Caching stuff stolen from remote-nindy.c */
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/* The data cache records all the data read from the remote machine
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since the last time it stopped.
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Each cache block holds LINE_SIZE bytes of data
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starting at a multiple-of-LINE_SIZE address. */
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#define LINE_SIZE_POWER 4
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#define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */
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#define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/
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#define DCACHE_SIZE 64 /* Number of cache blocks */
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#define XFORM(x) ((x&LINE_SIZE_MASK)>>2)
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struct dcache_block
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{
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struct dcache_block *next, *last;
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unsigned int addr; /* Address for which data is recorded. */
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int data[LINE_SIZE / sizeof (int)];
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};
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struct dcache_block dcache_free, dcache_valid;
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/* Free all the data cache blocks, thus discarding all cached data. */
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static
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void
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dcache_flush ()
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{
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register struct dcache_block *db;
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while ((db = dcache_valid.next) != &dcache_valid)
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{
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remque (db);
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insque (db, &dcache_free);
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}
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}
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/*
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* If addr is present in the dcache, return the address of the block
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* containing it.
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*/
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static
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struct dcache_block *
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dcache_hit (addr)
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unsigned int addr;
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{
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register struct dcache_block *db;
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if (addr & 3)
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abort ();
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/* Search all cache blocks for one that is at this address. */
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db = dcache_valid.next;
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while (db != &dcache_valid)
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{
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if ((addr & ~LINE_SIZE_MASK) == db->addr)
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return db;
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db = db->next;
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}
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return NULL;
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}
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/* Return the int data at address ADDR in dcache block DC. */
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static
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int
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dcache_value (db, addr)
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struct dcache_block *db;
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unsigned int addr;
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{
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if (addr & 3)
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abort ();
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return (db->data[XFORM (addr)]);
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}
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/* Get a free cache block, put or keep it on the valid list,
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and return its address. The caller should store into the block
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the address and data that it describes, then remque it from the
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free list and insert it into the valid list. This procedure
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prevents errors from creeping in if a ninMemGet is interrupted
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(which used to put garbage blocks in the valid list...). */
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static
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struct dcache_block *
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dcache_alloc ()
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{
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register struct dcache_block *db;
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if ((db = dcache_free.next) == &dcache_free)
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{
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/* If we can't get one from the free list, take last valid and put
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it on the free list. */
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db = dcache_valid.last;
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remque (db);
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insque (db, &dcache_free);
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}
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remque (db);
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insque (db, &dcache_valid);
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return (db);
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}
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/* Return the contents of the word at address ADDR in the remote machine,
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using the data cache. */
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static
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int
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dcache_fetch (addr)
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CORE_ADDR addr;
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{
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register struct dcache_block *db;
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db = dcache_hit (addr);
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if (db == 0)
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{
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db = dcache_alloc ();
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immediate_quit++;
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hms_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE);
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immediate_quit--;
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db->addr = addr & ~LINE_SIZE_MASK;
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remque (db); /* Off the free list */
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insque (db, &dcache_valid); /* On the valid list */
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}
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return (dcache_value (db, addr));
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}
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/* Write the word at ADDR both in the data cache and in the remote machine. */
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static void
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dcache_poke (addr, data)
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CORE_ADDR addr;
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int data;
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{
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register struct dcache_block *db;
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/* First make sure the word is IN the cache. DB is its cache block. */
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db = dcache_hit (addr);
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if (db == 0)
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{
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db = dcache_alloc ();
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immediate_quit++;
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hms_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE);
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immediate_quit--;
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db->addr = addr & ~LINE_SIZE_MASK;
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remque (db); /* Off the free list */
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insque (db, &dcache_valid); /* On the valid list */
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}
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/* Modify the word in the cache. */
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db->data[XFORM (addr)] = data;
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/* Send the changed word. */
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immediate_quit++;
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hms_write_inferior_memory (addr, (unsigned char *) &data, 4);
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immediate_quit--;
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}
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/* The cache itself. */
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struct dcache_block the_cache[DCACHE_SIZE];
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/* Initialize the data cache. */
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static void
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dcache_init ()
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{
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register i;
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register struct dcache_block *db;
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db = the_cache;
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dcache_free.next = dcache_free.last = &dcache_free;
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dcache_valid.next = dcache_valid.last = &dcache_valid;
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for (i = 0; i < DCACHE_SIZE; i++, db++)
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insque (db, &dcache_free);
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}
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/***********************************************************************
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* I/O stuff stolen from remote-eb.c
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@ -244,9 +75,9 @@ static int after = 0xdead;
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int
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check_open ()
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{
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if (before != 0xdead
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|| after != 0xdead)
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printf("OUTCH! \n");
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if (before != 0xdead
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|| after != 0xdead)
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printf ("OUTCH! \n");
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if (!is_open)
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{
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error ("remote device not open");
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@ -281,7 +112,8 @@ readchar ()
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return buf & 0x7f;
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}
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static void flush()
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static void
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flush ()
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{
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while (1)
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{
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@ -317,7 +149,7 @@ expect (string)
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immediate_quit = 1;
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while (1)
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{
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c = readchar();
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c = readchar ();
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if (c == *p)
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{
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p++;
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@ -327,7 +159,7 @@ expect (string)
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return;
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}
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}
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else
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else
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{
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p = string;
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if (c == *p)
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@ -533,41 +365,6 @@ set_rate ()
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}
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static void
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hms_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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unsigned int prl;
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char *p;
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if (name == 0)
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{
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name = "";
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}
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if (is_open)
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hms_close (0);
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dev_name = strdup (name);
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if (!(desc = SERIAL_OPEN (dev_name)))
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perror_with_name ((char *) dev_name);
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SERIAL_RAW (desc);
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is_open = 1;
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push_target (&hms_ops);
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dcache_init ();
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/* Hello? Are you there? */
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SERIAL_WRITE (desc, "\r\n", 2);
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expect_prompt ();
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/* Clear any break points */
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hms_clear_breakpoints ();
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printf_filtered ("Connected to remote board running HMS monitor.\n");
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add_commands ();
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/* hms_drain ();*/
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}
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/* Close out all files and local state before this target loses control. */
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@ -588,7 +385,7 @@ hms_close (quitting)
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}
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/* Terminate the open connection to the remote debugger. Use this
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when you want to detach and do something else with your gdb. */ void
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when you want to detach and do something else with your gdb. */ void
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hms_detach (args, from_tty)
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char *args;
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int from_tty;
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@ -599,7 +396,7 @@ hms_detach (args, from_tty)
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}
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pop_target (); /* calls hms_close to do the real work
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*/
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*/
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if (from_tty)
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printf_filtered ("Ending remote %s debugging\n",
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target_shortname);
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@ -613,7 +410,7 @@ hms_resume (pid, step, sig)
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enum target_signal
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sig;
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{
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dcache_flush ();
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dcache_flush (remote_dcache);
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if (step)
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{
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@ -621,8 +418,8 @@ hms_resume (pid, step, sig)
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expect ("Step>");
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/* Force the next hms_wait to return a trap. Not doing anything
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about I/O from the target means that the user has to type "continue"
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to see any. FIXME, this should be fixed. */
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about I/O from the target means that the user has to type "continue"
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to see any. FIXME, this should be fixed. */
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need_artificial_trap = 1;
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}
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else
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@ -633,7 +430,7 @@ hms_resume (pid, step, sig)
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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. */
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STATUS just as `wait' would. */
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int
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hms_wait (pid, status)
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@ -649,8 +446,8 @@ hms_wait (pid, status)
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/* It would be tempting to look for "\n[__exit + 0x8]\n" but that
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requires loading symbols with "yc i" and even if we did do that we
|
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don't know that the file has symbols. */
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static char exitmsg[] = "HMS>";
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don't know that the file has symbols. */
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static char exitmsg[] = "HMS>";
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char *bp = bpt;
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char *ep = exitmsg;
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@ -703,16 +500,16 @@ hms_wait (pid, status)
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}
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if
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(ch == *ep || *ep == '?')
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{
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ep++;
|
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if (*ep == '\0')
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break;
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{
|
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ep++;
|
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if (*ep == '\0')
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break;
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if (!ch_handled)
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*swallowed_p++ = ch;
|
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ch_handled =
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1;
|
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}
|
||||
if (!ch_handled)
|
||||
*swallowed_p++ = ch;
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ch_handled =
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1;
|
||||
}
|
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else
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{
|
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ep = exitmsg;
|
||||
|
|
@ -756,7 +553,7 @@ hms_wait (pid, status)
|
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}
|
||||
|
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/* Return the name of register number REGNO in the form input and
|
||||
output by hms.
|
||||
output by hms.
|
||||
|
||||
Returns a pointer to a static buffer containing the answer. */
|
||||
static char *
|
||||
|
|
@ -769,7 +566,7 @@ get_reg_name (regno)
|
|||
return rn[regno];
|
||||
}
|
||||
|
||||
/* Read the remote registers. */
|
||||
/* Read the remote registers. */
|
||||
|
||||
static int
|
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gethex (length, start, ok)
|
||||
|
|
@ -793,9 +590,9 @@ gethex (length, start, ok)
|
|||
}
|
||||
else if
|
||||
(*start >= '0' && *start <= '9')
|
||||
{
|
||||
result += *start - '0';
|
||||
}
|
||||
{
|
||||
result += *start - '0';
|
||||
}
|
||||
else
|
||||
*ok = 0;
|
||||
start++;
|
||||
|
|
@ -855,13 +652,13 @@ hms_write_cr (s)
|
|||
|
||||
/* H8/500 monitor reg dump looks like:
|
||||
|
||||
HMS>r
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||||
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00
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||||
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE
|
||||
HMS>
|
||||
HMS>r
|
||||
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00
|
||||
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE
|
||||
HMS>
|
||||
|
||||
|
||||
*/
|
||||
*/
|
||||
|
||||
supply_val (n, size, ptr, segptr)
|
||||
int n;
|
||||
|
|
@ -926,18 +723,18 @@ hms_fetch_register (dummy)
|
|||
{
|
||||
|
||||
/*
|
||||
012
|
||||
r**
|
||||
-------1---------2---------3---------4---------5-----
|
||||
345678901234567890123456789012345678901234567890123456
|
||||
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00**
|
||||
---6---------7---------8---------9--------10----
|
||||
789012345678901234567890123456789012345678901234
|
||||
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE**
|
||||
|
||||
56789
|
||||
HMS>
|
||||
*/
|
||||
012
|
||||
r**
|
||||
-------1---------2---------3---------4---------5-----
|
||||
345678901234567890123456789012345678901234567890123456
|
||||
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00**
|
||||
---6---------7---------8---------9--------10----
|
||||
789012345678901234567890123456789012345678901234
|
||||
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE**
|
||||
|
||||
56789
|
||||
HMS>
|
||||
*/
|
||||
gottok = 1;
|
||||
|
||||
|
||||
|
|
@ -1008,10 +805,10 @@ hms_fetch_register (dummy)
|
|||
linebuf[77] == 'S')
|
||||
{
|
||||
/*
|
||||
PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
|
||||
5436789012345678901234567890123456789012345678901234567890123456789012
|
||||
0 1 2 3 4 5 6
|
||||
*/
|
||||
PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
|
||||
5436789012345678901234567890123456789012345678901234567890123456789012
|
||||
0 1 2 3 4 5 6
|
||||
*/
|
||||
gottok = 1;
|
||||
|
||||
reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok);
|
||||
|
|
@ -1093,7 +890,7 @@ int
|
|||
hms_fetch_word (addr)
|
||||
CORE_ADDR addr;
|
||||
{
|
||||
return dcache_fetch (addr);
|
||||
return dcache_fetch (remote_dcache, addr);
|
||||
}
|
||||
|
||||
/* Write a word WORD into remote address ADDR.
|
||||
|
|
@ -1104,7 +901,7 @@ hms_store_word (addr, word)
|
|||
CORE_ADDR addr;
|
||||
int word;
|
||||
{
|
||||
dcache_poke (addr, word);
|
||||
dcache_poke (remote_dcache, addr, word);
|
||||
}
|
||||
|
||||
int
|
||||
|
|
@ -1241,7 +1038,7 @@ hms_files_info ()
|
|||
|
||||
/* Copy LEN bytes of data from debugger memory at MYADDR
|
||||
to inferior's memory at MEMADDR. Returns errno value.
|
||||
* sb/sh instructions don't work on unaligned addresses, when TU=1.
|
||||
* sb/sh instructions don't work on unaligned addresses, when TU=1.
|
||||
*/
|
||||
|
||||
/* Read LEN bytes from inferior memory at MEMADDR. Put the result
|
||||
|
|
@ -1261,10 +1058,10 @@ hms_read_inferior_memory (memaddr, myaddr, len)
|
|||
int ok = 1;
|
||||
|
||||
/*
|
||||
AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................'
|
||||
012345678901234567890123456789012345678901234567890123456789012345
|
||||
0 1 2 3 4 5 6
|
||||
*/
|
||||
AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................'
|
||||
012345678901234567890123456789012345678901234567890123456789012345
|
||||
0 1 2 3 4 5 6
|
||||
*/
|
||||
char buffer[66];
|
||||
|
||||
if (memaddr & 0xf)
|
||||
|
|
@ -1274,9 +1071,9 @@ hms_read_inferior_memory (memaddr, myaddr, len)
|
|||
|
||||
sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff);
|
||||
|
||||
flush();
|
||||
flush ();
|
||||
hms_write_cr (buffer);
|
||||
/* drop the echo and newline*/
|
||||
/* drop the echo and newline */
|
||||
for (i = 0; i < 13; i++)
|
||||
readchar ();
|
||||
|
||||
|
|
@ -1292,22 +1089,23 @@ hms_read_inferior_memory (memaddr, myaddr, len)
|
|||
char byte[16];
|
||||
|
||||
buffer[0] = readchar ();
|
||||
while (buffer[0] == '\r'
|
||||
while (buffer[0] == '\r'
|
||||
|| buffer[0] == '\n')
|
||||
buffer[0] = readchar ();
|
||||
|
||||
if (buffer[0] == 'M')
|
||||
break;
|
||||
|
||||
for (i = 1; i < 50; i++) {
|
||||
buffer[i] = readchar ();
|
||||
}
|
||||
for (i = 1; i < 50; i++)
|
||||
{
|
||||
buffer[i] = readchar ();
|
||||
}
|
||||
/* sometimes we loose characters in the ascii representation of the
|
||||
data. I don't know where. So just scan for the end of line */
|
||||
i = readchar();
|
||||
data. I don't know where. So just scan for the end of line */
|
||||
i = readchar ();
|
||||
while (i != '\n' && i != '\r')
|
||||
i = readchar();
|
||||
|
||||
i = readchar ();
|
||||
|
||||
/* Now parse the line */
|
||||
|
||||
addr = gethex (4, buffer, &ok);
|
||||
|
|
@ -1428,10 +1226,47 @@ hms_com (args, fromtty)
|
|||
/* Clear all input so only command relative output is displayed */
|
||||
|
||||
hms_write_cr (args);
|
||||
/* hms_write ("\030", 1);*/
|
||||
/* hms_write ("\030", 1); */
|
||||
expect_prompt ();
|
||||
}
|
||||
|
||||
static void
|
||||
hms_open (name, from_tty)
|
||||
char *name;
|
||||
int from_tty;
|
||||
{
|
||||
unsigned int prl;
|
||||
char *p;
|
||||
|
||||
if (name == 0)
|
||||
{
|
||||
name = "";
|
||||
}
|
||||
if (is_open)
|
||||
hms_close (0);
|
||||
dev_name = strdup (name);
|
||||
|
||||
if (!(desc = SERIAL_OPEN (dev_name)))
|
||||
perror_with_name ((char *) dev_name);
|
||||
|
||||
SERIAL_RAW (desc);
|
||||
is_open = 1;
|
||||
push_target (&hms_ops);
|
||||
dcache_init (hms_read_inferior_memory,
|
||||
hms_write_inferior_memory);
|
||||
|
||||
/* Hello? Are you there? */
|
||||
SERIAL_WRITE (desc, "\r\n", 2);
|
||||
expect_prompt ();
|
||||
|
||||
/* Clear any break points */
|
||||
hms_clear_breakpoints ();
|
||||
|
||||
printf_filtered ("Connected to remote board running HMS monitor.\n");
|
||||
add_commands ();
|
||||
/* hms_drain (); */
|
||||
}
|
||||
|
||||
/* Define the target subroutine names */
|
||||
|
||||
struct target_ops hms_ops =
|
||||
|
|
@ -1446,7 +1281,7 @@ by a serial line.",
|
|||
hms_prepare_to_store,
|
||||
hms_xfer_inferior_memory,
|
||||
hms_files_info,
|
||||
hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */
|
||||
hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */
|
||||
0, 0, 0, 0, 0, /* Terminal handling */
|
||||
hms_kill, /* FIXME, kill */
|
||||
gr_load_image,
|
||||
|
|
@ -1462,7 +1297,7 @@ by a serial line.",
|
|||
OPS_MAGIC, /* Always the last thing */
|
||||
};
|
||||
|
||||
hms_quiet () /* FIXME - this routine can be removed after Dec '94 */
|
||||
hms_quiet () /* FIXME - this routine can be removed after Dec '94 */
|
||||
{
|
||||
quiet = !quiet;
|
||||
if (quiet)
|
||||
|
|
@ -1470,7 +1305,7 @@ hms_quiet () /* FIXME - this routine can be removed after Dec '94 */
|
|||
else
|
||||
printf_filtered ("Snoop enabled\n");
|
||||
|
||||
printf_filtered("`snoop' is obsolete, please use `set remotedebug'.\n");
|
||||
printf_filtered ("`snoop' is obsolete, please use `set remotedebug'.\n");
|
||||
}
|
||||
|
||||
hms_device (s)
|
||||
|
|
@ -1544,6 +1379,7 @@ remove_commands ()
|
|||
delete_cmd ("hms-drain", &cmdlist);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_initialize_remote_hms ()
|
||||
{
|
||||
|
|
@ -1552,7 +1388,7 @@ _initialize_remote_hms ()
|
|||
add_com ("hms <command>", class_obscure, hms_com,
|
||||
"Send a command to the HMS monitor.");
|
||||
|
||||
/* FIXME - hms_quiet and `snoop' can be removed after Dec '94 */
|
||||
/* FIXME - hms_quiet and `snoop' can be removed after Dec '94 */
|
||||
add_com ("snoop", class_obscure, hms_quiet,
|
||||
"Show what commands are going to the monitor (OBSOLETE - see 'set remotedebug')");
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue