diff options
Diffstat (limited to 'gdb/remote-st.c')
| -rw-r--r-- | gdb/remote-st.c | 348 |
1 files changed, 176 insertions, 172 deletions
diff --git a/gdb/remote-st.c b/gdb/remote-st.c index 1efdbfa..79c6b42 100644 --- a/gdb/remote-st.c +++ b/gdb/remote-st.c @@ -2,27 +2,28 @@ Copyright 1990, 1991, 1992 Free Software Foundation, Inc. Contributed by Cygnus Support. Written by Jim Kingdon for Cygnus. -This file is part of GDB. + 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 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. + 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. */ + 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. */ /* This file was derived from remote-eb.c, which did a similar job, but for an AMD-29K running EBMON. That file was in turn derived from remote.c as mentioned in the following comment (left in for comic relief): - "This is like remote.c but is for an esoteric situation-- + "This is like remote.c but is for an esoteric situation-- having an a29k board in a PC hooked up to a unix machine with a serial line, and running ctty com1 on the PC, through which the unix machine can run ebmon. Not to mention that the PC @@ -48,11 +49,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <sys/types.h> #include "serial.h" -extern struct target_ops st2000_ops; /* Forward declaration */ +extern struct target_ops st2000_ops; /* Forward declaration */ -static void st2000_close(); -static void st2000_fetch_register(); -static void st2000_store_register(); +static void st2000_close (); +static void st2000_fetch_register (); +static void st2000_store_register (); #define LOG_FILE "st2000.log" #if defined (LOG_FILE) @@ -71,9 +72,9 @@ static serial_t st2000_desc; static void #ifdef ANSI_PROTOTYPES -printf_stdebug(char *pattern, ...) +printf_stdebug (char *pattern,...) #else -printf_stdebug(va_alist) +printf_stdebug (va_alist) va_dcl #endif { @@ -81,33 +82,33 @@ printf_stdebug(va_alist) char buf[200]; #ifdef ANSI_PROTOTYPES - va_start(args, pattern); + va_start (args, pattern); #else char *pattern; - va_start(args); - pattern = va_arg(args, char *); + va_start (args); + pattern = va_arg (args, char *); #endif - vsprintf(buf, pattern, args); - va_end(args); + vsprintf (buf, pattern, args); + va_end (args); - if (SERIAL_WRITE(st2000_desc, buf, strlen(buf))) - fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno)); + if (SERIAL_WRITE (st2000_desc, buf, strlen (buf))) + fprintf (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); } /* Read a character from the remote system, doing all the fancy timeout stuff. */ static int -readchar(timeout) +readchar (timeout) int timeout; { int c; - c = SERIAL_READCHAR(st2000_desc, timeout); + c = SERIAL_READCHAR (st2000_desc, timeout); #ifdef LOG_FILE - putc(c & 0x7f, log_file); + putc (c & 0x7f, log_file); #endif if (c >= 0) @@ -118,17 +119,17 @@ readchar(timeout) if (timeout == 0) return c; /* Polls shouldn't generate timeout errors */ - error("Timeout reading from remote system."); + error ("Timeout reading from remote system."); } - perror_with_name("remote-st2000"); + perror_with_name ("remote-st2000"); } /* Scan input from the remote system, until STRING is found. If DISCARD is non-zero, then discard non-matching input, else print it out. Let the user break out immediately. */ static void -expect(string, discard) +expect (string, discard) char *string; int discard; { @@ -138,7 +139,7 @@ expect(string, discard) immediate_quit = 1; while (1) { - c = readchar(timeout); + c = readchar (timeout); if (c == *p++) { if (*p == '\0') @@ -151,9 +152,9 @@ expect(string, discard) { if (!discard) { - fwrite(string, 1, (p - 1) - string, stdout); - putchar((char)c); - fflush(stdout); + fwrite (string, 1, (p - 1) - string, stdout); + putchar ((char) c); + fflush (stdout); } p = string; } @@ -175,13 +176,13 @@ expect(string, discard) necessary to prevent getting into states from which we can't recover. */ static void -expect_prompt(discard) +expect_prompt (discard) int discard; { #if defined (LOG_FILE) /* This is a convenient place to do this. The idea is to do it often enough that we never lose much data if we terminate abnormally. */ - fflush(log_file); + fflush (log_file); #endif expect ("dbug> ", discard); } @@ -189,13 +190,13 @@ expect_prompt(discard) /* Get a hex digit from the remote system & return its value. If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ static int -get_hex_digit(ignore_space) +get_hex_digit (ignore_space) int ignore_space; { int ch; while (1) { - ch = readchar(timeout); + ch = readchar (timeout); if (ch >= '0' && ch <= '9') return ch - '0'; else if (ch >= 'A' && ch <= 'F') @@ -206,8 +207,8 @@ get_hex_digit(ignore_space) ; else { - expect_prompt(1); - error("Invalid hex digit from remote system."); + expect_prompt (1); + error ("Invalid hex digit from remote system."); } } } @@ -238,7 +239,7 @@ get_hex_regs (n, regno) for (i = 0; i < n; i++) { int j; - + val = 0; for (j = 0; j < 8; j++) val = (val << 4) + get_hex_digit (j == 0); @@ -257,10 +258,10 @@ st2000_create_inferior (execfile, args, env) int entry_pt; if (args && *args) - error("Can't pass arguments to remote STDEBUG process"); + error ("Can't pass arguments to remote STDEBUG process"); if (execfile == 0 || exec_bfd == 0) - error("No executable file specified"); + error ("No executable file specified"); entry_pt = (int) bfd_get_start_address (exec_bfd); @@ -281,7 +282,7 @@ st2000_create_inferior (execfile, args, env) /* insert_step_breakpoint (); FIXME, do we need this? */ /* Let 'er rip... */ - proceed ((CORE_ADDR)entry_pt, TARGET_SIGNAL_DEFAULT, 0); + proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); } /* Open a connection to a remote debugger. @@ -291,33 +292,33 @@ static int baudrate = 9600; static char dev_name[100]; static void -st2000_open(args, from_tty) +st2000_open (args, from_tty) char *args; int from_tty; { int n; char junk[100]; - target_preopen(from_tty); - - n = sscanf(args, " %s %d %s", dev_name, &baudrate, junk); + target_preopen (from_tty); + + n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk); if (n != 2) - error("Bad arguments. Usage: target st2000 <device> <speed>\n\ + error ("Bad arguments. Usage: target st2000 <device> <speed>\n\ or target st2000 <host> <port>\n"); - st2000_close(0); + st2000_close (0); - st2000_desc = SERIAL_OPEN(dev_name); + st2000_desc = SERIAL_OPEN (dev_name); if (!st2000_desc) - perror_with_name(dev_name); + perror_with_name (dev_name); - SERIAL_SETBAUDRATE(st2000_desc, baudrate); + SERIAL_SETBAUDRATE (st2000_desc, baudrate); - SERIAL_RAW(st2000_desc); + SERIAL_RAW (st2000_desc); - push_target(&st2000_ops); + push_target (&st2000_ops); #if defined (LOG_FILE) log_file = fopen (LOG_FILE, "w"); @@ -326,13 +327,13 @@ or target st2000 <host> <port>\n"); #endif /* Hello? Are you there? */ - printf_stdebug("\003"); /* ^C wakes up dbug */ - - expect_prompt(1); + printf_stdebug ("\003"); /* ^C wakes up dbug */ + + expect_prompt (1); if (from_tty) - printf("Remote %s connected to %s\n", target_shortname, - dev_name); + printf ("Remote %s connected to %s\n", target_shortname, + dev_name); } /* Close out all files and local state before this target loses control. */ @@ -341,15 +342,16 @@ static void st2000_close (quitting) int quitting; { - SERIAL_CLOSE(st2000_desc); + SERIAL_CLOSE (st2000_desc); #if defined (LOG_FILE) - if (log_file) { - if (ferror(log_file)) - fprintf(stderr, "Error writing log file.\n"); - if (fclose(log_file) != 0) - fprintf(stderr, "Error closing log file.\n"); - } + if (log_file) + { + if (ferror (log_file)) + fprintf (stderr, "Error writing log file.\n"); + if (fclose (log_file) != 0) + fprintf (stderr, "Error closing log file.\n"); + } #endif } @@ -360,11 +362,11 @@ static void st2000_detach (from_tty) int from_tty; { - pop_target(); /* calls st2000_close to do the real work */ + pop_target (); /* calls st2000_close to do the real work */ if (from_tty) printf ("Ending remote %s debugging\n", target_shortname); } - + /* Tell the remote machine to resume. */ static void @@ -398,9 +400,9 @@ st2000_wait (status) status->kind = TARGET_WAITKIND_EXITED; status->value.integer = 0; - timeout = 0; /* Don't time out -- user program is running. */ + timeout = 0; /* Don't time out -- user program is running. */ - expect_prompt(0); /* Wait for prompt, outputting extraneous text */ + expect_prompt (0); /* Wait for prompt, outputting extraneous text */ status->kind = TARGET_WAITKIND_STOPPED; status->value.sig = TARGET_SIGNAL_TRAP; @@ -425,7 +427,7 @@ get_reg_name (regno) b = buf; for (p = REGISTER_NAME (regno); *p; p++) - *b++ = toupper(*p); + *b++ = toupper (*p); *b = '\000'; return buf; @@ -442,7 +444,7 @@ st2000_fetch_registers () very often... I'll clean it up later. */ for (regno = 0; regno <= PC_REGNUM; regno++) - st2000_fetch_register(regno); + st2000_fetch_register (regno); } /* Fetch register REGNO, or all registers if REGNO is -1. @@ -473,7 +475,7 @@ st2000_store_registers () int regno; for (regno = 0; regno <= PC_REGNUM; regno++) - st2000_store_register(regno); + st2000_store_register (regno); registers_changed (); } @@ -535,7 +537,7 @@ st2000_write_inferior_memory (memaddr, myaddr, len) /* Read LEN bytes from inferior memory at MEMADDR. Put the result at debugger address MYADDR. Returns length moved. */ static int -st2000_read_inferior_memory(memaddr, myaddr, len) +st2000_read_inferior_memory (memaddr, myaddr, len) CORE_ADDR memaddr; char *myaddr; int len; @@ -560,11 +562,12 @@ st2000_read_inferior_memory(memaddr, myaddr, len) st2000_read_bytes (CORE_ADDR_MAX - 3, foo, 4) doesn't need to work. Detect it and give up if there's an attempt to do that. */ - if (((memaddr - 1) + len) < memaddr) { - errno = EIO; - return 0; - } - + if (((memaddr - 1) + len) < memaddr) + { + errno = EIO; + return 0; + } + startaddr = memaddr; count = 0; while (count < len) @@ -595,7 +598,7 @@ st2000_xfer_inferior_memory (memaddr, myaddr, len, write, target) char *myaddr; int len; int write; - struct target_ops *target; /* ignored */ + struct target_ops *target; /* ignored */ { if (write) return st2000_write_inferior_memory (memaddr, myaddr, len); @@ -608,7 +611,7 @@ st2000_kill (args, from_tty) char *args; int from_tty; { - return; /* Ignore attempts to kill target system */ + return; /* Ignore attempts to kill target system */ } /* Clean up when a program exits. @@ -627,7 +630,8 @@ st2000_mourn_inferior () #define MAX_STDEBUG_BREAKPOINTS 16 -static CORE_ADDR breakaddr[MAX_STDEBUG_BREAKPOINTS] = {0}; +static CORE_ADDR breakaddr[MAX_STDEBUG_BREAKPOINTS] = +{0}; static int st2000_insert_breakpoint (addr, shadow) @@ -646,12 +650,12 @@ st2000_insert_breakpoint (addr, shadow) breakaddr[i] = addr; st2000_read_inferior_memory (bp_addr, shadow, bp_size); - printf_stdebug("BR %x H\r", addr); - expect_prompt(1); + printf_stdebug ("BR %x H\r", addr); + expect_prompt (1); return 0; } - fprintf(stderr, "Too many breakpoints (> 16) for STDBUG\n"); + fprintf (stderr, "Too many breakpoints (> 16) for STDBUG\n"); return 1; } @@ -667,12 +671,12 @@ st2000_remove_breakpoint (addr, shadow) { breakaddr[i] = 0; - printf_stdebug("CB %d\r", i); - expect_prompt(1); + printf_stdebug ("CB %d\r", i); + expect_prompt (1); return 0; } - fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr); + fprintf (stderr, "Can't find breakpoint associated with 0x%x\n", addr); return 1; } @@ -682,29 +686,29 @@ st2000_remove_breakpoint (addr, shadow) static void st2000_command (args, fromtty) - char *args; - int fromtty; + char *args; + int fromtty; { if (!st2000_desc) - error("st2000 target not open."); - + error ("st2000 target not open."); + if (!args) - error("Missing command."); - - printf_stdebug("%s\r", args); - expect_prompt(0); + error ("Missing command."); + + printf_stdebug ("%s\r", args); + expect_prompt (0); } /* Connect the user directly to STDBUG. This command acts just like the 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */ -/*static struct ttystate ttystate;*/ +/*static struct ttystate ttystate; */ static void -cleanup_tty() +cleanup_tty () { - printf("\r\n[Exiting connect mode]\r\n"); -/* SERIAL_RESTORE(0, &ttystate);*/ + printf ("\r\n[Exiting connect mode]\r\n"); +/* SERIAL_RESTORE(0, &ttystate); */ } #if 0 @@ -712,50 +716,50 @@ cleanup_tty() static void connect_command (args, fromtty) - char *args; - int fromtty; + char *args; + int fromtty; { fd_set readfds; int numfds; int c; char cur_esc = 0; - dont_repeat(); + dont_repeat (); if (st2000_desc < 0) - error("st2000 target not open."); - + error ("st2000 target not open."); + if (args) - fprintf("This command takes no args. They have been ignored.\n"); - - printf("[Entering connect mode. Use ~. or ~^D to escape]\n"); + fprintf ("This command takes no args. They have been ignored.\n"); - serial_raw(0, &ttystate); + printf ("[Entering connect mode. Use ~. or ~^D to escape]\n"); - make_cleanup(cleanup_tty, 0); + serial_raw (0, &ttystate); - FD_ZERO(&readfds); + make_cleanup (cleanup_tty, 0); + + FD_ZERO (&readfds); while (1) { do { - FD_SET(0, &readfds); - FD_SET(st2000_desc, &readfds); - numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0); + FD_SET (0, &readfds); + FD_SET (st2000_desc, &readfds); + numfds = select (sizeof (readfds) * 8, &readfds, 0, 0, 0); } while (numfds == 0); if (numfds < 0) - perror_with_name("select"); + perror_with_name ("select"); - if (FD_ISSET(0, &readfds)) + if (FD_ISSET (0, &readfds)) { /* tty input, send to stdebug */ - c = getchar(); + c = getchar (); if (c < 0) - perror_with_name("connect"); + perror_with_name ("connect"); - printf_stdebug("%c", c); + printf_stdebug ("%c", c); switch (cur_esc) { case 0: @@ -776,16 +780,16 @@ connect_command (args, fromtty) } } - if (FD_ISSET(st2000_desc, &readfds)) + if (FD_ISSET (st2000_desc, &readfds)) { while (1) { - c = readchar(0); + c = readchar (0); if (c < 0) break; - putchar(c); + putchar (c); } - fflush(stdout); + fflush (stdout); } } } @@ -793,43 +797,43 @@ connect_command (args, fromtty) /* Define the target subroutine names */ -struct target_ops st2000_ops ; +struct target_ops st2000_ops; -static void -init_st2000_ops(void) +static void +init_st2000_ops (void) { - st2000_ops.to_shortname = "st2000"; - st2000_ops.to_longname = "Remote serial Tandem ST2000 target"; - st2000_ops.to_doc = "Use a remote computer running STDEBUG connected by a serial line;\n\ + st2000_ops.to_shortname = "st2000"; + st2000_ops.to_longname = "Remote serial Tandem ST2000 target"; + st2000_ops.to_doc = "Use a remote computer running STDEBUG connected by a serial line;\n\ or a network connection.\n\ Arguments are the name of the device for the serial line,\n\ -the speed to connect at in bits per second." ; - st2000_ops.to_open = st2000_open; - st2000_ops.to_close = st2000_close; - st2000_ops.to_attach = 0; +the speed to connect at in bits per second."; + st2000_ops.to_open = st2000_open; + st2000_ops.to_close = st2000_close; + st2000_ops.to_attach = 0; st2000_run_ops.to_post_attach = NULL; st2000_ops.to_require_attach = NULL; - st2000_ops.to_detach = st2000_detach; + st2000_ops.to_detach = st2000_detach; st2000_ops.to_require_detach = NULL; - st2000_ops.to_resume = st2000_resume; - st2000_ops.to_wait = st2000_wait; + st2000_ops.to_resume = st2000_resume; + st2000_ops.to_wait = st2000_wait; st2000_ops.to_post_wait = NULL; - st2000_ops.to_fetch_registers = st2000_fetch_register; - st2000_ops.to_store_registers = st2000_store_register; - st2000_ops.to_prepare_to_store = st2000_prepare_to_store; - st2000_ops.to_xfer_memory = st2000_xfer_inferior_memory; - st2000_ops.to_files_info = st2000_files_info; - st2000_ops.to_insert_breakpoint = st2000_insert_breakpoint; - st2000_ops.to_remove_breakpoint = st2000_remove_breakpoint; /* Breakpoints */ - st2000_ops.to_terminal_init = 0; - st2000_ops.to_terminal_inferior = 0; - st2000_ops.to_terminal_ours_for_output = 0; - st2000_ops.to_terminal_ours = 0; - st2000_ops.to_terminal_info = 0; /* Terminal handling */ - st2000_ops.to_kill = st2000_kill; - st2000_ops.to_load = 0; /* load */ - st2000_ops.to_lookup_symbol = 0; /* lookup_symbol */ - st2000_ops.to_create_inferior = st2000_create_inferior; + st2000_ops.to_fetch_registers = st2000_fetch_register; + st2000_ops.to_store_registers = st2000_store_register; + st2000_ops.to_prepare_to_store = st2000_prepare_to_store; + st2000_ops.to_xfer_memory = st2000_xfer_inferior_memory; + st2000_ops.to_files_info = st2000_files_info; + st2000_ops.to_insert_breakpoint = st2000_insert_breakpoint; + st2000_ops.to_remove_breakpoint = st2000_remove_breakpoint; /* Breakpoints */ + st2000_ops.to_terminal_init = 0; + st2000_ops.to_terminal_inferior = 0; + st2000_ops.to_terminal_ours_for_output = 0; + st2000_ops.to_terminal_ours = 0; + st2000_ops.to_terminal_info = 0; /* Terminal handling */ + st2000_ops.to_kill = st2000_kill; + st2000_ops.to_load = 0; /* load */ + st2000_ops.to_lookup_symbol = 0; /* lookup_symbol */ + st2000_ops.to_create_inferior = st2000_create_inferior; st2000_ops.to_post_startup_inferior = NULL; st2000_ops.to_acknowledge_created_inferior = NULL; st2000_ops.to_clone_and_follow_inferior = NULL; @@ -847,29 +851,29 @@ the speed to connect at in bits per second." ; st2000_run_ops.to_has_execd = NULL; st2000_run_ops.to_reported_exec_events_per_exec_call = NULL; st2000_run_ops.to_has_exited = NULL; - st2000_ops.to_mourn_inferior = st2000_mourn_inferior; - st2000_ops.to_can_run = 0; /* can_run */ - st2000_ops.to_notice_signals = 0; /* notice_signals */ - st2000_ops.to_thread_alive = 0; /* thread alive */ - st2000_ops.to_stop = 0; /* to_stop */ + st2000_ops.to_mourn_inferior = st2000_mourn_inferior; + st2000_ops.to_can_run = 0; /* can_run */ + st2000_ops.to_notice_signals = 0; /* notice_signals */ + st2000_ops.to_thread_alive = 0; /* thread alive */ + st2000_ops.to_stop = 0; /* to_stop */ st2000_ops.to_pid_to_exec_file = NULL; st2000_run_ops.to_core_file_to_sym_file = NULL; - st2000_ops.to_stratum = process_stratum; - st2000_ops.DONT_USE = 0; /* next */ - st2000_ops.to_has_all_memory = 1; - st2000_ops.to_has_memory = 1; - st2000_ops.to_has_stack = 1; - st2000_ops.to_has_registers = 1; - st2000_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */ - st2000_ops.to_sections = 0; - st2000_ops.to_sections_end = 0; /* Section pointers */ - st2000_ops.to_magic = OPS_MAGIC; /* Always the last thing */ -} ; + st2000_ops.to_stratum = process_stratum; + st2000_ops.DONT_USE = 0; /* next */ + st2000_ops.to_has_all_memory = 1; + st2000_ops.to_has_memory = 1; + st2000_ops.to_has_stack = 1; + st2000_ops.to_has_registers = 1; + st2000_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */ + st2000_ops.to_sections = 0; + st2000_ops.to_sections_end = 0; /* Section pointers */ + st2000_ops.to_magic = OPS_MAGIC; /* Always the last thing */ +}; void _initialize_remote_st2000 () { - init_st2000_ops() ; + init_st2000_ops (); add_target (&st2000_ops); add_com ("st2000 <command>", class_obscure, st2000_command, "Send a command to the STDBUG monitor."); 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