-/* Remote debugging interface for Zilog Z8000 simulator
- Copyright 1992 Free Software Foundation, Inc.
- Contributed by Cygnus Support. Written by Steve Chamberlain
- (sac@cygnus.com).
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include "defs.h"
-#include "inferior.h"
-#include "wait.h"
-#include "value.h"
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <setjmp.h>
-#include <errno.h>
-#include "terminal.h"
-#include "target.h"
-#include "gdbcore.h"
-#include "../z8ksim/sim.h"
-
-/* External data declarations */
-extern int stop_soon_quietly; /* for wait_for_inferior */
-
-/* Forward data declarations */
-extern struct target_ops sim_ops; /* Forward declaration */
-
-/* Forward function declarations */
-static void sim_fetch_registers ();
-static void sim_close ();
-
-void sim_store_register();
-
-void sim_set_oc();
-
-
-int
-sim_write_inferior_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- unsigned char *myaddr;
- int len;
-{
-return sim_write(memaddr, myaddr, len);
-}
-
-static int
-store_register(regno)
-int regno;
-{
- if (regno == -1)
- {
- for (regno = 0; regno < 16; regno++)
- store_register(regno);
- }
- else
- {
- sim_store_register(regno,read_register(regno));
- }
- return 0;
-}
-
-
-
-void
-sim_kill(arg,from_tty)
-char *arg;
-int from_tty;
-{
-
-}
-
-
-
-/*
- * Download a file specified in 'args', to the sim.
- */
-static void
-sim_load(args,fromtty)
-char *args;
-int fromtty;
-{
- bfd *abfd;
- asection *s;
-
- inferior_pid = 0;
- abfd = bfd_openr(args,"coff-z8k");
-
- if (!abfd)
- {
- printf_filtered("Unable to open file %s\n", args);
- return;
- }
-
- if (bfd_check_format(abfd, bfd_object) ==0)
- {
- printf_filtered("File is not an object file\n");
- return ;
- }
-
- s = abfd->sections;
- while (s != (asection *)NULL)
- {
- if (s->flags & SEC_LOAD)
- {
- int i;
- int delta = 4096;
- char *buffer = xmalloc(delta);
- printf_filtered("%s\t: 0x%4x .. 0x%4x ",
- s->name, s->vma, s->vma + s->_raw_size);
- for (i = 0; i < s->_raw_size; i+= delta)
- {
- int sub_delta = delta;
- if (sub_delta > s->_raw_size - i)
- sub_delta = s->_raw_size - i ;
-
- bfd_get_section_contents(abfd, s, buffer, i, sub_delta);
- sim_write_inferior_memory(s->vma + i, buffer, sub_delta);
- printf_filtered("*");
- fflush(stdout);
- }
- printf_filtered( "\n");
- free(buffer);
- }
- s = s->next;
- }
-
- sim_set_pc(abfd->start_address);
-}
-
-/* This is called not only when we first attach, but also when the
- user types "run" after having attached. */
-void
-sim_create_inferior (execfile, args, env)
- char *execfile;
- char *args;
- char **env;
-{
- int entry_pt;
- char buffer[100];
-
- if (args && *args)
- error ("Can't pass arguments to remote sim process.");
-
- if (execfile == 0 || exec_bfd == 0)
- error ("No exec file specified");
-
- entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-
-
- sim_kill(NULL,NULL);
- sim_clear_breakpoints();
- init_wait_for_inferior ();
-
-
-
- insert_breakpoints (); /* Needed to get correct instruction in cache */
- proceed(entry_pt, -1, 0);
-}
-
-
-
-static void
-sim_open (name, from_tty)
- char *name;
- int from_tty;
-{
- if(name == 0)
- {
- name = "";
- }
-
- /* Clear any break points */
- sim_clear_breakpoints();
-
- push_target (&sim_ops);
- target_fetch_registers(-1);
-
- printf_filtered("Connected to the Z8000 Simulator.\n");
-}
-
-/* Close out all files and local state before this target loses control. */
-
-static void
-sim_close (quitting)
- int quitting;
-{
-
-
- /* Clear any break points */
- sim_clear_breakpoints();
-
- /* Put this port back into REMOTE mode */
- sleep(1); /* Let any output make it all the way back */
-}
-
-/* Terminate the open connection to the remote debugger.
- Use this when you want to detach and do something else
- with your gdb. */
-int
-sim_detach (args,from_tty)
- char *args;
- int from_tty;
-{
- sim_clear_breakpoints();
-
- pop_target(); /* calls sim_close to do the real work */
- if (from_tty)
- printf_filtered ("Ending remote %s debugging\n", target_shortname);
- return 0;
-}
-
-/* Tell the remote machine to resume. */
-
-
-/* Wait until the remote machine stops, then return,
- storing status in STATUS just as `wait' would. */
-
-int
-sim_wait (status)
- WAITTYPE *status;
-{
-
-*status = sim_stop_signal();
-return 0;
-}
-
-/* Return the name of register number REGNO
- in the form input and output by sim.
-
- Returns a pointer to a static buffer containing the answer. */
-static char *
-get_reg_name (regno)
- int regno;
-{
- static char *rn[NUM_REGS]= REGISTER_NAMES;
- return rn[regno];
-}
-
-
-
-
-
-/* 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. */
-
-void
-sim_prepare_to_store ()
-{
- /* Do nothing, since we can store individual regs */
-}
-
-static CORE_ADDR
-translate_addr(addr)
-CORE_ADDR addr;
-{
-
- return(addr);
-
-}
-
-/* Read a word from remote address ADDR and return it.
- * This goes through the data cache.
- */
-int
-sim_fetch_word (addr)
- CORE_ADDR addr;
-{
-/* return dcache_fetch (addr);*/
-}
-
-
-static void
-fetch_register(regno)
-int regno;
-{
- if (regno == -1)
- {
- for (regno = 0; regno < 16; regno++)
- fetch_register(regno);
- }
- else {
- char buf[MAX_REGISTER_RAW_SIZE];
- sim_fetch_register(regno, buf);
- supply_register(regno, buf);
- }
-}
-
-/* Write a word WORD into remote address ADDR.
- This goes through the data cache. */
-
-void
-sim_store_word (addr, word)
- CORE_ADDR addr;
- int word;
-{
-/* dcache_poke (addr, word);*/
-}
-
-int
-sim_xfer_inferior_memory(memaddr, myaddr, len, write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *target; /* ignored */
-{
- if (write)
- {
- sim_write(memaddr, myaddr, len);
-
- }
- else
- {
- sim_read(memaddr, myaddr, len);
- }
- return len;
-}
-
-void
-sim_files_info ()
-{
-char *file = "nothing";
-if (exec_bfd)
- file = bfd_get_filename(exec_bfd);
-
-if (exec_bfd)
-#ifdef __GO32__
- printf_filtered("\tAttached to DOS asynctsr and running program %s\n",file);
-#else
- printf_filtered("\tAttached to %s at %d baud and running program %s\n",file);
-#endif
- printf_filtered("\ton an H8/300 processor.\n");
-}
-
-/* This routine is run as a hook, just before the main command loop is
- entered. If gdb is configured for the H8, but has not had its
- target specified yet, this will loop prompting the user to do so.
-*/
-
-void
-sim_before_main_loop ()
-{
- char ttyname[100];
- char *p, *p2;
- extern FILE *instream;
- extern jmp_buf to_top_level;
-
- push_target (&sim_ops);
-}
-
-
-#define MAX_BREAKS 16
-static int num_brkpts=0;
-static int
-sim_insert_breakpoint(addr, save)
-CORE_ADDR addr;
-char *save; /* Throw away, let sim save instructions */
-{
- abort();
-}
-static int
-sim_remove_breakpoint(addr, save)
-CORE_ADDR addr;
-char *save; /* Throw away, let sim save instructions */
-{
- abort();
-}
-
-/* Clear the sims notion of what the break points are */
-static int
-sim_mourn()
-{
- sim_clear_breakpoints();
- generic_mourn_inferior ();
- return 0;
-}
-
-static int rem_resume(a,b)
-{
- sim_resume(a,b);
- return 0;
-}
-
-/* Define the target subroutine names */
-
-struct target_ops sim_ops =
-{
- "sim", "Remote SIM monitor",
- "Use the Z8000 simulator",
- sim_open, sim_close,
- 0, sim_detach, rem_resume, sim_wait, /* attach */
- fetch_register, store_register,
- sim_prepare_to_store,
- sim_xfer_inferior_memory,
- sim_files_info,
- 0, 0, /* Breakpoints */
- 0, 0, 0, 0, 0, /* Terminal handling */
- sim_kill, /* FIXME, kill */
- sim_load,
- 0, /* lookup_symbol */
- sim_create_inferior, /* create_inferior */
- sim_mourn, /* mourn_inferior FIXME */
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum, 0, /* next */
- 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
- 0,0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
-
-
-
-
-
-
-/***********************************************************************/
-
-void
-_initialize_remote_sim ()
-{
- extern int sim_z8001_mode;
- sim_z8001_mode = z8001_mode;
- add_target (&sim_ops);
-}
-
-
projects / deliverable / binutils-gdb.git / blobdiff