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4887063b3c
for `watchdog' variable. This allows the user to put an upper limit on the amount of time that GDB will wait for the target to return from a step or continue operation. This will primarily be used for the testsuite, where it is difficult to come up with a reasonable timeout for things like function calls, which can take as long as three minutes under some circumstances. If the watchdog timer expires, GDB will generate an error that looks like `Watchdog has expired.', and will detach from the target. * remote-mips.c (mips_open): Setup initial frame from target. Print it out so that user is told where the program is stopped when they attach. * remote-nrom.c: Loads of cleanups. Use serial code to open network connections. Use expect() to wait for response to download command. * ser-tcp.c (tcp_open): Retry connection if we get ECONNREFUSED. * serial.c serial.h (serial_open serial_fdopen serial_close): Allow users to open the same device multiple times. They all get to share the same serial_t. This is about the only way to have multiple active targets use the same device (for download and debug). * sparcl-tdep.c: Keep #include <unistd.h> away from GO32. * target.c: Add `targetdebug' variable. If this is non-zero, then a special target is put at the top of the target stack which will cause all calls through the target vector to have their args and results printed out.
351 lines
11 KiB
C
351 lines
11 KiB
C
/* Support for GDB maintenance commands.
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Copyright 1992, 1993, 1994 Free Software Foundation, Inc.
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Written by Fred Fish at Cygnus Support.
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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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#if MAINTENANCE_CMDS /* Entire file goes away if not including maint cmds */
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#include <signal.h>
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#include "command.h"
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#include "gdbcmd.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "demangle.h"
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#include "gdbcore.h"
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#include "expression.h" /* For language.h */
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#include "language.h"
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static void maintenance_command PARAMS ((char *, int));
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static void maintenance_dump_me PARAMS ((char *, int));
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static void maintenance_demangle PARAMS ((char *, int));
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static void maintenance_time_display PARAMS ((char *, int));
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static void maintenance_space_display PARAMS ((char *, int));
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/* Set this to the maximum number of seconds to wait instead of waiting forever
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in target_wait(). If this timer times out, then it generates an error and
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the command is aborted. This replaces most of the need for timeouts in the
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GDB test suite, and makes it possible to distinguish between a hung target
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and one with slow communications. */
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int watchdog = 0;
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/*
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LOCAL FUNCTION
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maintenance_command -- access the maintenance subcommands
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SYNOPSIS
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void maintenance_command (char *args, int from_tty)
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DESCRIPTION
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*/
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static void
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maintenance_command (args, from_tty)
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char *args;
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int from_tty;
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{
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printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n");
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help_list (maintenancelist, "maintenance ", -1, gdb_stdout);
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}
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/* ARGSUSED */
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static void
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maintenance_dump_me (args, from_tty)
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char *args;
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int from_tty;
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{
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if (query ("Should GDB dump core? "))
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{
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signal (SIGQUIT, SIG_DFL);
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kill (getpid (), SIGQUIT);
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}
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}
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/* Someday we should allow demangling for things other than just
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explicit strings. For example, we might want to be able to
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specify the address of a string in either GDB's process space
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or the debuggee's process space, and have gdb fetch and demangle
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that string. If we have a char* pointer "ptr" that points to
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a string, we might want to be able to given just the name and
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have GDB demangle and print what it points to, etc. (FIXME) */
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static void
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maintenance_demangle (args, from_tty)
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char *args;
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int from_tty;
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{
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char *demangled;
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if (args == NULL || *args == '\0')
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{
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printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n");
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}
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else
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{
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demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS);
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if (demangled != NULL)
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{
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printf_unfiltered ("%s\n", demangled);
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free (demangled);
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}
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else
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{
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printf_unfiltered ("Can't demangle \"%s\"\n", args);
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}
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}
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}
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static void
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maintenance_time_display (args, from_tty)
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char *args;
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int from_tty;
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{
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extern int display_time;
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if (args == NULL || *args == '\0')
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printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n");
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else
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display_time = strtol (args, NULL, 10);
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}
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static void
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maintenance_space_display (args, from_tty)
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char *args;
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int from_tty;
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{
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extern int display_space;
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if (args == NULL || *args == '\0')
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printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n");
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else
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display_space = strtol (args, NULL, 10);
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}
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/* The "maintenance info" command is defined as a prefix, with allow_unknown 0.
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Therefore, its own definition is called only for "maintenance info" with
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no args. */
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/* ARGSUSED */
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static void
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maintenance_info_command (arg, from_tty)
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char *arg;
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int from_tty;
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{
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printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n");
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help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout);
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}
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static void
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print_section_table (abfd, asect, ignore)
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bfd *abfd;
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asection *asect;
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PTR ignore;
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{
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flagword flags;
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flags = bfd_get_section_flags (abfd, asect);
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/* FIXME-32x64: Need print_address_numeric with field width. */
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printf_filtered (" %s",
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local_hex_string_custom
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((unsigned long) bfd_section_vma (abfd, asect), "08l"));
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printf_filtered ("->%s",
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local_hex_string_custom
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((unsigned long) (bfd_section_vma (abfd, asect)
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+ bfd_section_size (abfd, asect)),
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"08l"));
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printf_filtered (" at %s",
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local_hex_string_custom
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((unsigned long) asect->filepos, "08l"));
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printf_filtered (": %s", bfd_section_name (abfd, asect));
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if (flags & SEC_ALLOC)
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printf_filtered (" ALLOC");
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if (flags & SEC_LOAD)
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printf_filtered (" LOAD");
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if (flags & SEC_RELOC)
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printf_filtered (" RELOC");
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if (flags & SEC_READONLY)
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printf_filtered (" READONLY");
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if (flags & SEC_CODE)
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printf_filtered (" CODE");
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if (flags & SEC_DATA)
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printf_filtered (" DATA");
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if (flags & SEC_ROM)
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printf_filtered (" ROM");
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if (flags & SEC_CONSTRUCTOR)
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printf_filtered (" CONSTRUCTOR");
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if (flags & SEC_HAS_CONTENTS)
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printf_filtered (" HAS_CONTENTS");
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if (flags & SEC_NEVER_LOAD)
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printf_filtered (" NEVER_LOAD");
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if (flags & SEC_COFF_SHARED_LIBRARY)
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printf_filtered (" COFF_SHARED_LIBRARY");
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if (flags & SEC_IS_COMMON)
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printf_filtered (" IS_COMMON");
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printf_filtered ("\n");
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}
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/* ARGSUSED */
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static void
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maintenance_info_sections (arg, from_tty)
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char *arg;
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int from_tty;
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{
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if (exec_bfd)
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{
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printf_filtered ("Exec file:\n");
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printf_filtered (" `%s', ", bfd_get_filename(exec_bfd));
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wrap_here (" ");
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printf_filtered ("file type %s.\n", bfd_get_target(exec_bfd));
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bfd_map_over_sections(exec_bfd, print_section_table, 0);
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}
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if (core_bfd)
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{
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printf_filtered ("Core file:\n");
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printf_filtered (" `%s', ", bfd_get_filename(core_bfd));
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wrap_here (" ");
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printf_filtered ("file type %s.\n", bfd_get_target(core_bfd));
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bfd_map_over_sections(core_bfd, print_section_table, 0);
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}
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}
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/* The "maintenance print" command is defined as a prefix, with allow_unknown
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0. Therefore, its own definition is called only for "maintenance print"
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with no args. */
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/* ARGSUSED */
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static void
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maintenance_print_command (arg, from_tty)
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char *arg;
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int from_tty;
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{
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printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n");
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help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout);
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}
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#endif /* MAINTENANCE_CMDS */
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void
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_initialize_maint_cmds ()
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{
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#if MAINTENANCE_CMDS /* Entire file goes away if not including maint cmds */
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add_prefix_cmd ("maintenance", class_maintenance, maintenance_command,
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"Commands for use by GDB maintainers.\n\
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Includes commands to dump specific internal GDB structures in\n\
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a human readable form, to cause GDB to deliberately dump core,\n\
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to test internal functions such as the C++ demangler, etc.",
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&maintenancelist, "maintenance ", 0,
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&cmdlist);
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add_com_alias ("mt", "maintenance", class_maintenance, 1);
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add_prefix_cmd ("info", class_maintenance, maintenance_info_command,
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"Commands for showing internal info about the program being debugged.",
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&maintenanceinfolist, "maintenance info ", 0,
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&maintenancelist);
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add_cmd ("sections", class_maintenance, maintenance_info_sections,
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"List the BFD sections of the exec and core files.",
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&maintenanceinfolist);
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add_prefix_cmd ("print", class_maintenance, maintenance_print_command,
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"Maintenance command for printing GDB internal state.",
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&maintenanceprintlist, "maintenance print ", 0,
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&maintenancelist);
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add_cmd ("dump-me", class_maintenance, maintenance_dump_me,
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"Get fatal error; make debugger dump its core.\n\
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GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\
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itself a SIGQUIT signal.",
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&maintenancelist);
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add_cmd ("demangle", class_maintenance, maintenance_demangle,
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"Demangle a C++ mangled name.\n\
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Call internal GDB demangler routine to demangle a C++ link name\n\
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and prints the result.",
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&maintenancelist);
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add_cmd ("time", class_maintenance, maintenance_time_display,
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"Set the display of time usage.\n\
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If nonzero, will cause the execution time for each command to be\n\
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displayed, following the command's output.",
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&maintenancelist);
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add_cmd ("space", class_maintenance, maintenance_space_display,
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"Set the display of space usage.\n\
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If nonzero, will cause the execution space for each command to be\n\
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displayed, following the command's output.",
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&maintenancelist);
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add_cmd ("type", class_maintenance, maintenance_print_type,
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"Print a type chain for a given symbol.\n\
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For each node in a type chain, print the raw data for each member of\n\
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the type structure, and the interpretation of the data.",
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&maintenanceprintlist);
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add_cmd ("symbols", class_maintenance, maintenance_print_symbols,
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"Print dump of current symbol definitions.\n\
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Entries in the full symbol table are dumped to file OUTFILE.\n\
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If a SOURCE file is specified, dump only that file's symbols.",
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&maintenanceprintlist);
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add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols,
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"Print dump of current minimal symbol definitions.\n\
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Entries in the minimal symbol table are dumped to file OUTFILE.\n\
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If a SOURCE file is specified, dump only that file's minimal symbols.",
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&maintenanceprintlist);
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add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols,
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"Print dump of current partial symbol definitions.\n\
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Entries in the partial symbol table are dumped to file OUTFILE.\n\
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If a SOURCE file is specified, dump only that file's partial symbols.",
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&maintenanceprintlist);
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add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
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"Print dump of current object file definitions.",
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&maintenanceprintlist);
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add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
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"Check consistency of psymtabs and symtabs.",
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&maintenancelist);
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add_show_from_set (
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add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *)&watchdog,
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"Set watchdog timer.\n\
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When non-zero, this timeout is used instead of waiting forever for a target to\n\
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finish a low-level step or continue operation. If the specified amount of time\n\
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passes without a response from the target, an error occurs.", &setlist),
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&showlist);
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#endif /* MAINTENANCE_CMDS */
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}
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