diff options
Diffstat (limited to 'gdb/remote-nrom.c')
| -rw-r--r-- | gdb/remote-nrom.c | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/gdb/remote-nrom.c b/gdb/remote-nrom.c new file mode 100644 index 00000000000..4999a68b8e0 --- /dev/null +++ b/gdb/remote-nrom.c @@ -0,0 +1,360 @@ +/* Remote debugging with the XLNT Designs, Inc (XDI) NetROM. + Copyright 1990, 1991, 1992, 1995 Free Software Foundation, Inc. + Contributed by: + Roger Moyers + XLNT Designs, Inc. + 15050 Avenue of Science, Suite 106 + San Diego, CA 92128 + (619)487-9320 + roger@xlnt.com + Adapted from work done at Cygnus Support in remote-nindy.c, + later merged in by Stan Shebs at Cygnus. + +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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "gdbcmd.h" +#include "serial.h" +#include "target.h" + +/* Default ports used to talk with the NetROM. */ + +#define DEFAULT_NETROM_LOAD_PORT 1236 +#define DEFAULT_NETROM_CONTROL_PORT 1237 + +static void nrom_close PARAMS ((int quitting)); + +/* New commands. */ + +static void nrom_passthru PARAMS ((char *, int)); + +/* We talk to the NetROM over these sockets. */ + +static serial_t load_desc = NULL; +static serial_t ctrl_desc = NULL; + +static int load_port = DEFAULT_NETROM_LOAD_PORT; +static int control_port = DEFAULT_NETROM_CONTROL_PORT; + +static char nrom_hostname[100]; + +/* Forward data declaration. */ + +extern struct target_ops nrom_ops; + +/* Scan input from the remote system, until STRING is found. Print chars that + don't match. */ + +static int +expect (string) + char *string; +{ + char *p = string; + int c; + + immediate_quit = 1; + + while (1) + { + c = SERIAL_READCHAR (ctrl_desc, 5); + + if (c == *p++) + { + if (*p == '\0') + { + immediate_quit = 0; + + return 0; + } + } + else + { + fputc_unfiltered (c, gdb_stdout); + p = string; + if (c == *p) + p++; + } + } +} + +static void +nrom_kill () +{ + nrom_close (0); +} + +static serial_t +open_socket (name, port) + char *name; + int port; +{ + char sockname[100]; + serial_t desc; + + sprintf (sockname, "%s:%d", name, port); + desc = SERIAL_OPEN (sockname); + if (!desc) + perror_with_name (sockname); + + return desc; +} + +static void +load_cleanup () +{ + SERIAL_CLOSE (load_desc); + load_desc = NULL; +} + +/* Download a file specified in ARGS to the netROM. */ + +static void +nrom_load (args, fromtty) + char *args; + int fromtty; +{ + int fd, rd_amt, fsize; + bfd *pbfd; + asection *section; + char *downloadstring = "download 0\n"; + struct cleanup *old_chain; + + /* Tell the netrom to get ready to download. */ + if (SERIAL_WRITE (ctrl_desc, downloadstring, strlen (downloadstring))) + error ("nrom_load: control_send() of `%s' failed", downloadstring); + + expect ("Waiting for a connection...\n"); + + load_desc = open_socket (nrom_hostname, load_port); + + old_chain = make_cleanup (load_cleanup, 0); + + pbfd = bfd_openr (args, 0); + + if (pbfd) + { + make_cleanup (bfd_close, pbfd); + + if (!bfd_check_format (pbfd, bfd_object)) + error ("\"%s\": not in executable format: %s", + args, bfd_errmsg (bfd_get_error ())); + + for (section = pbfd->sections; section; section = section->next) + { + if (bfd_get_section_flags (pbfd, section) & SEC_ALLOC) + { + bfd_vma section_address; + unsigned long section_size; + const char *section_name; + + section_name = bfd_get_section_name (pbfd, section); + section_address = bfd_get_section_vma (pbfd, section); + section_size = bfd_section_size (pbfd, section); + + if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) + { + file_ptr fptr; + + printf_filtered ("[Loading section %s at %x (%d bytes)]\n", + section_name, section_address, + section_size); + + fptr = 0; + + while (section_size > 0) + { + char buffer[1024]; + int count; + + count = min (section_size, 1024); + + bfd_get_section_contents (pbfd, section, buffer, fptr, + count); + + SERIAL_WRITE (load_desc, buffer, count); + section_address += count; + fptr += count; + section_size -= count; + } + } + else /* BSS and such */ + { + printf_filtered ("[section %s: not loading]\n", + section_name); + } + } + } + } + else + error ("\"%s\": Could not open", args); + + do_cleanups (old_chain); +} + +/* Open a connection to the remote NetROM devices. */ + +static void +nrom_open (name, from_tty) + char *name; + int from_tty; +{ + int errn; + + if (!name || strchr (name, '/') || strchr (name, ':')) + error ( +"To open a NetROM connection, you must specify the hostname\n\ +or IP address of the NetROM device you wish to use."); + + strcpy (nrom_hostname, name); + + target_preopen (from_tty); + + unpush_target (&nrom_ops); + + ctrl_desc = open_socket (nrom_hostname, control_port); + + push_target (&nrom_ops); + + if (from_tty) + printf_filtered ("Connected to NetROM device \"%s\"\n", nrom_hostname); +} + +/* Close out all files and local state before this target loses control. */ + +static void +nrom_close (quitting) + int quitting; +{ + if (load_desc) + SERIAL_CLOSE (load_desc); + if (ctrl_desc) + SERIAL_CLOSE (ctrl_desc); +} + +/* Pass arguments directly to the NetROM. */ + +static void +nrom_passthru (args, fromtty) + char *args; + int fromtty; +{ + char buf[1024]; + + sprintf (buf, "%s\n", args); + if (SERIAL_WRITE (ctrl_desc, buf, strlen (buf))) + error ("nrom_reset: control_send() of `%s'failed", args); +} + +static void +nrom_mourn() +{ + unpush_target (&nrom_ops); + generic_mourn_inferior (); +} + +/* Define the target vector. */ + +struct target_ops nrom_ops ; + +static void +init_nrom_ops(void) +{ + nrom_ops.to_shortname = "nrom"; + nrom_ops.to_longname = "Remote XDI `NetROM' target"; + nrom_ops.to_doc = "Remote debug using a NetROM over Ethernet"; + nrom_ops.to_open = nrom_open; + nrom_ops.to_close = nrom_close; + nrom_ops.to_attach = NULL; + nrom_ops.to_post_attach = NULL; + nrom_ops.to_require_attach = NULL; + nrom_ops.to_detach = NULL; + nrom_ops.to_require_detach = NULL; + nrom_ops.to_resume = NULL; + nrom_ops.to_wait = NULL; + nrom_ops.to_post_wait = NULL; + nrom_ops.to_fetch_registers = NULL; + nrom_ops.to_store_registers = NULL; + nrom_ops.to_prepare_to_store = NULL; + nrom_ops.to_xfer_memory = NULL; + nrom_ops.to_files_info = NULL; + nrom_ops.to_insert_breakpoint = NULL; + nrom_ops.to_remove_breakpoint = NULL; + nrom_ops.to_terminal_init = NULL; + nrom_ops.to_terminal_inferior = NULL; + nrom_ops.to_terminal_ours_for_output = NULL; + nrom_ops.to_terminal_ours = NULL; + nrom_ops.to_terminal_info = NULL; + nrom_ops.to_kill = nrom_kill; + nrom_ops.to_load = nrom_load; + nrom_ops.to_lookup_symbol = NULL; + nrom_ops.to_create_inferior = NULL; + nrom_ops.to_post_startup_inferior = NULL; + nrom_ops.to_acknowledge_created_inferior = NULL; + nrom_ops.to_clone_and_follow_inferior = NULL; + nrom_ops.to_post_follow_inferior_by_clone = NULL; + nrom_ops.to_insert_fork_catchpoint = NULL; + nrom_ops.to_remove_fork_catchpoint = NULL; + nrom_ops.to_insert_vfork_catchpoint = NULL; + nrom_ops.to_remove_vfork_catchpoint = NULL; + nrom_ops.to_has_forked = NULL; + nrom_ops.to_has_vforked = NULL; + nrom_ops.to_can_follow_vfork_prior_to_exec = NULL; + nrom_ops.to_post_follow_vfork = NULL; + nrom_ops.to_insert_exec_catchpoint = NULL; + nrom_ops.to_remove_exec_catchpoint = NULL; + nrom_ops.to_has_execd = NULL; + nrom_ops.to_reported_exec_events_per_exec_call = NULL; + nrom_ops.to_has_exited = NULL; + nrom_ops.to_mourn_inferior = nrom_mourn; + nrom_ops.to_can_run = NULL; + nrom_ops.to_notice_signals = 0; + nrom_ops.to_thread_alive = 0; + nrom_ops.to_stop = 0; + nrom_ops.to_pid_to_exec_file = NULL; + nrom_ops.to_core_file_to_sym_file = NULL; + nrom_ops.to_stratum = download_stratum; + nrom_ops.DONT_USE = NULL; + nrom_ops.to_has_all_memory = 1; + nrom_ops.to_has_memory = 1; + nrom_ops.to_has_stack = 1; + nrom_ops.to_has_registers = 1; + nrom_ops.to_has_execution = 0; + nrom_ops.to_sections = NULL; + nrom_ops.to_sections_end = NULL; + nrom_ops.to_magic = OPS_MAGIC ; +}; + +void +_initialize_remote_nrom () +{ + init_nrom_ops() ; + add_target (&nrom_ops); + + add_show_from_set ( + add_set_cmd ("nrom_load_port", no_class, var_zinteger, (char *)&load_port, + "Set the port to use for NetROM downloads\n", &setlist), + &showlist); + + add_show_from_set ( + add_set_cmd ("nrom_control_port", no_class, var_zinteger, (char *)&control_port, + "Set the port to use for NetROM debugger services\n", &setlist), + &showlist); + + add_cmd ("nrom", no_class, nrom_passthru, + "Pass arguments as command to NetROM", + &cmdlist); +} |