From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13000 invoked by alias); 1 Jun 2005 17:42:08 -0000 Mailing-List: contact gdb-patches-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sources.redhat.com Received: (qmail 12964 invoked by uid 22791); 1 Jun 2005 17:41:56 -0000 Received: from lakermmtao10.cox.net (HELO lakermmtao10.cox.net) (68.230.240.29) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Wed, 01 Jun 2005 17:41:56 +0000 Received: from white ([68.9.64.121]) by lakermmtao10.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050601174151.ZIPX7787.lakermmtao10.cox.net@white>; Wed, 1 Jun 2005 13:41:51 -0400 Received: from bob by white with local (Exim 3.35 #1 (Debian)) id 1DdXDy-0004i6-00; Wed, 01 Jun 2005 13:41:50 -0400 Date: Wed, 01 Jun 2005 17:42:00 -0000 From: Bob Rossi To: Eli Zaretskii , gdb-patches@sources.redhat.com Subject: Re: mi tty commands Message-ID: <20050601174149.GA17309@white> Mail-Followup-To: Eli Zaretskii , gdb-patches@sources.redhat.com References: <20050228162003.GA27783@white> <20050302025219.GA29948@white> <20050311022644.GA15563@white> <20050522210040.GB9231@white> <20050528230855.GE22435@nevyn.them.org> <20050529205435.GA11243@white> <20050601001440.GB15414@white> <20050601130653.GA17103@white> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050601130653.GA17103@white> User-Agent: Mutt/1.3.28i X-SW-Source: 2005-06/txt/msg00008.txt.bz2 On Wed, Jun 01, 2005 at 09:06:53AM -0400, Bob Rossi wrote: > On Wed, Jun 01, 2005 at 07:00:18AM +0300, Eli Zaretskii wrote: > > > Date: Tue, 31 May 2005 20:14:40 -0400 > > > From: Bob Rossi > > > > > > > I'm having trouble finding a particular spot in the manual for this > > > > command. Do you have any suggestions? > > > > > > Eli, is the MI doco good enough? or do you want the doco for set/show? > > > > I want both ;-) > > OK. I can handle that. > > > > If you want the set/show doco, please let me know where to put it in the > > > manual. > > > > Very strange: I replied to this question 2 days ago, but I cannot find > > my response in the gdb-patches archives. > > > > Here it is again. Please note the question about the "tty" command. > > > > > Date: Sun, 29 May 2005 16:54:35 -0400 > > > From: Bob Rossi > > > Cc: gdb-patches@sources.redhat.com > > > > > > I'm having trouble finding a particular spot in the manual for this > > > command. Do you have any suggestions? > > > > The node "Input/Output" seems like a perfect place. > > OK, thanks. > > > Which reminds me: now that you introduced "set tty", doesn't that mean > > we should remove the "tty" command as redundant? > > I don't think so. Simply because the tty command has been around for > ages and FE's depend on it being there. Removing the tty command would > successfully break every front end. Then, it would be necessary for FE's > to start trying to figure out what version of GDB they are using to > determine how to give it a tty. This is a difficult in itself with the > MI interface, never mind the CLI. > > On the other hand, if it is unacceptable to leave both commands in GDB, > I could send both commands > tty /dev/pts/1 > set inferior-tty /dev/pts/1 > to GDB and not worry about the results. Here's the whole patch, inlcuding the doco. Thanks, Bob Rossi Index: gdb/ChangeLog + * fork-child.c (fork-inferior): Use accessor function for + inferior_io_terminal. + * infcmd.c (inferior_io_terminal): Make static. + (set_inferior_io_terminal): New function. + (get_inferior_io_terminal): Ditto. + (tty_command): Use accessor function. + (_initialize_infcmd): Add inferior_tty setshow variable. + * inferior.h (set_inferior_io_terminal): New prototype. + (get_inferior_io_terminal): Ditto. + * nto-procfs (procfs_create_inferior): Use accessor function. + * win32-nat.c (child_create_inferior): Ditto. + * mi/mi-cmd-env.c (mi_cmd_inferior_tty_set): New function. + (mi_cmd_inferior_tty_set): Ditto. + * mi/mi-cmds.c (mi_cmds): Add inferior-tty-set and inferior-tty-show + * mi/mi-cmds.h (mi_cmd_inferior_tty_set): Add prototype. + (mi_cmd_inferior_tty_show): Ditto. Index: gdb/doc/ChangeLog + * gdb.texinfo (GDB/MI Miscellaneous Commands): Add -inferior-tty-set. + (GDB/MI Miscellaneous Commands): Add -inferior-tty-show. + (Input/Output): Document "set/show inferior-tty". Index: gdb/fork-child.c =================================================================== RCS file: /cvs/src/src/gdb/fork-child.c,v retrieving revision 1.26 diff -w -u -r1.26 fork-child.c --- gdb/fork-child.c 12 May 2005 20:21:17 -0000 1.26 +++ gdb/fork-child.c 1 Jun 2005 17:12:26 -0000 @@ -138,6 +138,7 @@ char **save_our_env; int shell = 0; static char **argv; + const char *inferior_io_terminal = get_inferior_io_terminal (); /* If no exec file handed to us, get it from the exec-file command -- with a good, common error message if none is specified. */ @@ -261,7 +262,7 @@ /* Tell the terminal handling subsystem what tty we plan to run on; it will just record the information for later. */ - new_tty_prefork (inferior_io_terminal); + new_tty_prefork ((char *)inferior_io_terminal); /* It is generally good practice to flush any possible pending stdio output prior to doing a fork, to avoid the possibility of both Index: gdb/infcmd.c =================================================================== RCS file: /cvs/src/src/gdb/infcmd.c,v retrieving revision 1.138 diff -w -u -r1.138 infcmd.c --- gdb/infcmd.c 22 May 2005 14:53:34 -0000 1.138 +++ gdb/infcmd.c 1 Jun 2005 17:12:27 -0000 @@ -136,7 +136,7 @@ /* File name for default use for standard in/out in the inferior. */ -char *inferior_io_terminal; +static char *inferior_io_terminal; /* Pid of our debugged inferior, or 0 if no inferior now. Since various parts of infrun.c test this to see whether there is a program @@ -203,6 +203,24 @@ /* Accessor routines. */ +void +set_inferior_io_terminal (char *terminal_name) +{ + if (inferior_io_terminal) + xfree (inferior_io_terminal); + + if (!terminal_name) + inferior_io_terminal = NULL; + else + inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); +} + +const char * +get_inferior_io_terminal (void) +{ + return inferior_io_terminal; +} + char * get_inferior_args (void) { @@ -376,7 +394,7 @@ if (file == 0) error_no_arg (_("terminal name for running target process")); - inferior_io_terminal = savestring (file, strlen (file)); + set_inferior_io_terminal (file); } /* Kill the inferior if already running. This function is designed @@ -1994,6 +2012,14 @@ _("Set terminal for future runs of program being debugged.")); set_cmd_completer (c, filename_completer); + /* add the filename of the terminal connected to inferior I/O */ + add_setshow_string_noescape_cmd ("inferior-tty", class_run, + &inferior_io_terminal, _("\ +Set terminal for future runs of program being debugged."), _("\ +Show terminal for future runs of program being debugged."), _("\ +Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); + set_cmd_completer (c, filename_completer); + add_setshow_optional_filename_cmd ("args", class_run, &inferior_args, _("\ Set argument list to give program being debugged when it is started."), _("\ Index: gdb/inferior.h =================================================================== RCS file: /cvs/src/src/gdb/inferior.h,v retrieving revision 1.71 diff -w -u -r1.71 inferior.h --- gdb/inferior.h 14 May 2005 06:07:42 -0000 1.71 +++ gdb/inferior.h 1 Jun 2005 17:12:27 -0000 @@ -103,9 +103,10 @@ extern void clear_sigio_trap (void); -/* File name for default use for standard in/out in the inferior. */ +/* Set/get file name for default use for standard in/out in the inferior. */ -extern char *inferior_io_terminal; +extern void set_inferior_io_terminal (char *terminal_name); +extern const char *get_inferior_io_terminal (void); /* Collected pid, tid, etc. of the debugged inferior. When there's no inferior, PIDGET (inferior_ptid) will be 0. */ Index: gdb/nto-procfs.c =================================================================== RCS file: /cvs/src/src/gdb/nto-procfs.c,v retrieving revision 1.13 diff -w -u -r1.13 nto-procfs.c --- gdb/nto-procfs.c 15 Feb 2005 15:49:14 -0000 1.13 +++ gdb/nto-procfs.c 1 Jun 2005 17:12:28 -0000 @@ -984,6 +984,7 @@ char *in = "", *out = "", *err = ""; int fd, fds[3]; sigset_t set; + const char *inferior_io_terminal = get_inferior_io_terminal (); argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) * sizeof (*argv)); @@ -1010,11 +1011,11 @@ if (inferior_io_terminal) { if (!in[0]) - in = inferior_io_terminal; + in = (char*)inferior_io_terminal; if (!out[0]) - out = inferior_io_terminal; + out = (char*)inferior_io_terminal; if (!err[0]) - err = inferior_io_terminal; + err = (char*)inferior_io_terminal; } if (in[0]) Index: gdb/win32-nat.c =================================================================== RCS file: /cvs/src/src/gdb/win32-nat.c,v retrieving revision 1.111 diff -w -u -r1.111 win32-nat.c --- gdb/win32-nat.c 23 May 2005 19:32:27 -0000 1.111 +++ gdb/win32-nat.c 1 Jun 2005 17:12:29 -0000 @@ -1735,6 +1735,7 @@ const char *sh; int tty; int ostdin, ostdout, ostderr; + const char *inferior_io_terminal = get_inferior_io_terminal (); if (!exec_file) error (_("No executable specified, use `target exec'.")); Index: gdb/doc/gdb.texinfo =================================================================== RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v retrieving revision 1.258 diff -w -u -r1.258 gdb.texinfo --- gdb/doc/gdb.texinfo 29 May 2005 03:13:18 -0000 1.258 +++ gdb/doc/gdb.texinfo 1 Jun 2005 17:12:45 -0000 @@ -2090,6 +2090,22 @@ command, only the input @emph{for your program} is affected. The input for @value{GDBN} still comes from your terminal. +@vindex inferior-tty +@cindex Set the inferior controlling terminal +Yet another way to tell @value{GDBN} where you program should do input +and output is with the @code{set inferior-tty} command. This is currently +the same as using the @code{tty} command. + +@table @code +@item set inferior-tty /dev/ttyb +@kindex set inferior-tty +Set the tty for the program being debugged to /dev/ttyb. + +@item show inferior-tty +@kindex show inferior-tty +Show the current tty for the program being debugged. +@end table + @node Attach @section Debugging an already-running process @kindex attach @@ -19123,6 +19139,57 @@ (@value{GDBP}) @end smallexample +@subheading The @code{-inferior-tty-set} Command +@findex -inferior-tty-set + +@subheading Synopsis + +@smallexample +-inferior-tty-set /dev/pts/1 +@end smallexample + +Set terminal for future runs of the program being debugged. + +@subheading @value{GDBN} Command + +The corresponding @value{GDBN} command is @samp{set inferior-tty /dev/pts/1}. + +@subheading Example + +@smallexample +(@value{GDBP}) +-inferior-tty-set /dev/pts/1 +^done +(@value{GDBP}) +@end smallexample + +@subheading The @code{-inferior-tty-show} Command +@findex -inferior-tty-show + +@subheading Synopsis + +@smallexample +-inferior-tty-show +@end smallexample + +Show terminal for future runs of program being debugged. + +@subheading @value{GDBN} Command + +The corresponding @value{GDBN} command is @samp{show inferior-tty /dev/pts/1}. + +@subheading Example + +@smallexample +(@value{GDBP}) +-inferior-tty-set /dev/pts/1 +^done +(@value{GDBP}) +-inferior-tty-show +^done,inferior_tty_terminal="/dev/pts/1" +(@value{GDBP}) +@end smallexample + @ignore @c %%%%%%%%%%%%%%%%%%%%%%%%%%%% SECTION %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @node GDB/MI Kod Commands Index: gdb/mi/mi-cmd-env.c =================================================================== RCS file: /cvs/src/src/gdb/mi/mi-cmd-env.c,v retrieving revision 1.8 diff -w -u -r1.8 mi-cmd-env.c --- gdb/mi/mi-cmd-env.c 11 Feb 2005 04:06:11 -0000 1.8 +++ gdb/mi/mi-cmd-env.c 1 Jun 2005 17:12:45 -0000 @@ -244,6 +244,30 @@ return MI_CMD_DONE; } +/* Set the inferior terminal device name. */ +enum mi_cmd_result +mi_cmd_inferior_tty_set (char *command, char **argv, int argc) +{ + set_inferior_io_terminal (argv[0]); + + return MI_CMD_DONE; +} + +/* Print the inferior terminal device name */ +enum mi_cmd_result +mi_cmd_inferior_tty_show (char *command, char **argv, int argc) +{ + const char *inferior_io_terminal = get_inferior_io_terminal (); + + if ( !mi_valid_noargs ("mi_cmd_inferior_tty_show", argc, argv)) + error (_("mi_cmd_inferior_tty_show: Usage: No args")); + + if (inferior_io_terminal) + ui_out_field_string (uiout, "inferior_tty_terminal", inferior_io_terminal); + + return MI_CMD_DONE; +} + void _initialize_mi_cmd_env (void) { Index: gdb/mi/mi-cmds.c =================================================================== RCS file: /cvs/src/src/gdb/mi/mi-cmds.c,v retrieving revision 1.16 diff -w -u -r1.16 mi-cmds.c --- gdb/mi/mi-cmds.c 11 Feb 2005 18:13:55 -0000 1.16 +++ gdb/mi/mi-cmds.c 1 Jun 2005 17:12:46 -0000 @@ -153,6 +153,8 @@ { "trace-save", { NULL, 0 }, NULL, NULL }, { "trace-start", { NULL, 0 }, NULL, NULL }, { "trace-stop", { NULL, 0 }, NULL, NULL }, + { "inferior-tty-set", { NULL, 0 }, NULL, mi_cmd_inferior_tty_set}, + { "inferior-tty-show", { NULL, 0 }, NULL, mi_cmd_inferior_tty_show}, { "var-assign", { NULL, 0 }, 0, mi_cmd_var_assign}, { "var-create", { NULL, 0 }, 0, mi_cmd_var_create}, { "var-delete", { NULL, 0 }, 0, mi_cmd_var_delete}, Index: gdb/mi/mi-cmds.h =================================================================== RCS file: /cvs/src/src/gdb/mi/mi-cmds.h,v retrieving revision 1.15 diff -w -u -r1.15 mi-cmds.h --- gdb/mi/mi-cmds.h 13 Jan 2005 22:08:27 -0000 1.15 +++ gdb/mi/mi-cmds.h 1 Jun 2005 17:12:46 -0000 @@ -96,6 +96,8 @@ extern mi_cmd_args_ftype mi_cmd_target_select; extern mi_cmd_argv_ftype mi_cmd_thread_list_ids; extern mi_cmd_argv_ftype mi_cmd_thread_select; +extern mi_cmd_argv_ftype mi_cmd_inferior_tty_set; +extern mi_cmd_argv_ftype mi_cmd_inferior_tty_show; extern mi_cmd_argv_ftype mi_cmd_var_assign; extern mi_cmd_argv_ftype mi_cmd_var_create; extern mi_cmd_argv_ftype mi_cmd_var_delete; Index: gdb/testsuite/ChangeLog =================================================================== RCS file: /cvs/src/src/gdb/testsuite/ChangeLog,v retrieving revision 1.1119 diff -w -u -r1.1119 ChangeLog --- gdb/testsuite/ChangeLog 29 May 2005 01:58:53 -0000 1.1119 +++ gdb/testsuite/ChangeLog 1 Jun 2005 17:12:53 -0000 @@ -1,3 +1,8 @@ +2005-05-28 Bob Rossi + + * gdb.mi/mi-basics.exp (test_setshow_inferior_tty): Test MI tty + command. + 2005-05-29 Joel Brobecker * gdb.arch/alpha-step.c: New file. Index: gdb/testsuite/gdb.mi/mi-basics.exp =================================================================== RCS file: /cvs/src/src/gdb/testsuite/gdb.mi/mi-basics.exp,v retrieving revision 1.9 diff -w -u -r1.9 mi-basics.exp --- gdb/testsuite/gdb.mi/mi-basics.exp 9 Aug 2004 16:32:44 -0000 1.9 +++ gdb/testsuite/gdb.mi/mi-basics.exp 1 Jun 2005 17:12:54 -0000 @@ -236,12 +236,42 @@ } +proc test_setshow_inferior_tty {} { + global mi_gdb_prompt + + # Test that the commands, + # -inferior-tty-set + # -inferior-tth-show + # are setting/getting the same data in GDB. + + mi_gdb_test "301-inferior-tty-show" \ + "301\\\^done" \ + "initial tty is empty" + + mi_gdb_test "302-inferior-tty-set /dev/pts/1" \ + "302\\\^done" \ + "set tty to /dev/pts/1" + + mi_gdb_test "303-inferior-tty-show" \ + "303\\\^done,inferior_tty_terminal=\"/dev/pts/1\"" \ + "tty was set correctly" + + mi_gdb_test "304-inferior-tty-set" \ + "304\\\^done" \ + "set tty to the empty string" + + mi_gdb_test "305-inferior-tty-show" \ + "305\\\^done" \ + "final tty is empty" +} + if [test_mi_interpreter_selection] { test_exec_and_symbol_mi_operatons test_breakpoints_deletion test_dir_specification test_cwd_specification test_path_specification + test_setshow_inferior_tty } mi_gdb_exit