diff options
Diffstat (limited to 'gdb/gdbtk/generic/gdbtk.c')
| -rw-r--r-- | gdb/gdbtk/generic/gdbtk.c | 764 |
1 files changed, 0 insertions, 764 deletions
diff --git a/gdb/gdbtk/generic/gdbtk.c b/gdb/gdbtk/generic/gdbtk.c deleted file mode 100644 index 2b6decffb02..00000000000 --- a/gdb/gdbtk/generic/gdbtk.c +++ /dev/null @@ -1,764 +0,0 @@ -/* Startup code for Insight - Copyright 1994, 1995, 1996, 1997, 1998, 2001, 2002, 2003 - Free Software Foundation, Inc. - - Written by Stu Grossman <grossman@cygnus.com> of Cygnus Support. - - 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 "inferior.h" -#include "symfile.h" -#include "objfiles.h" -#include "gdbcore.h" -#include "tracepoint.h" -#include "demangle.h" -#include "version.h" -#include "top.h" -#include "annotate.h" - -#if defined(_WIN32) || defined(__CYGWIN__) -#define WIN32_LEAN_AND_MEAN -#include <windows.h> -#endif - -/* tcl header files includes varargs.h unless HAS_STDARG is defined, - but gdb uses stdarg.h, so make sure HAS_STDARG is defined. */ -#define HAS_STDARG 1 - -#include <itcl.h> -#include <itk.h> -#include "guitcl.h" -#include "gdbtk.h" - -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <signal.h> - -#include "gdb_string.h" -#include "dis-asm.h" -#include "gdbcmd.h" - -#ifdef __CYGWIN32__ -#include <sys/cygwin.h> /* for cygwin32_attach_handle_to_fd */ -#endif - -extern void _initialize_gdbtk (void); - -/* For unix natives, we use a timer to periodically keep the gui alive. - See comments before x_event. */ -static sigset_t nullsigmask; -static struct sigaction act1, act2; -static struct itimerval it_on, it_off; - -static void -x_event_wrapper (int signo) -{ - x_event (signo); -} - -/* - * This variable controls the interaction with an external editor. - */ - -char *external_editor_command = NULL; - -extern int Tktable_Init (Tcl_Interp * interp); - -void gdbtk_init (void); - -static void gdbtk_init_1 (char *argv0); - -void gdbtk_interactive (void); - -static void cleanup_init (void *ignore); - -static void tk_command (char *, int); - -static int target_should_use_timer (struct target_ops *t); - -int target_is_native (struct target_ops *t); - -int gdbtk_test (char *); - -static void view_command (char *, int); - -/* Handle for TCL interpreter */ -Tcl_Interp *gdbtk_interp = NULL; - -static int gdbtk_timer_going = 0; - -/* linked variable used to tell tcl what the current thread is */ -int gdb_context = 0; - -/* This variable is true when the inferior is running. See note in - * gdbtk.h for details. - */ -int running_now; - -/* This variable holds the name of a Tcl file which should be sourced by the - interpreter when it goes idle at startup. Used with the testsuite. */ -static char *gdbtk_source_filename = NULL; - -int gdbtk_disable_fputs = 1; - -static const char *argv0; - -#ifndef _WIN32 - -/* Supply malloc calls for tcl/tk. We do not want to do this on - Windows, because Tcl_Alloc is probably in a DLL which will not call - the mmalloc routines. - We also don't need to do it for Tcl/Tk8.1, since we locally changed the - allocator to use malloc & free. */ - -#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION == 0 -char * -TclpAlloc (unsigned int size) -{ - return xmalloc (size); -} - -char * -TclpRealloc (char *ptr, unsigned int size) -{ - return xrealloc (ptr, size); -} - -void -TclpFree (char *ptr) -{ - free (ptr); -} -#endif /* TCL_VERSION == 8.0 */ - -#endif /* ! _WIN32 */ - -#ifdef _WIN32 - -/* On Windows, if we hold a file open, other programs can't write to - * it. In particular, we don't want to hold the executable open, - * because it will mean that people have to get out of the debugging - * session in order to remake their program. So we close it, although - * this will cost us if and when we need to reopen it. - */ - -void -close_bfds () -{ - struct objfile *o; - - ALL_OBJFILES (o) - { - if (o->obfd != NULL) - bfd_cache_close (o->obfd); - } - - if (exec_bfd != NULL) - bfd_cache_close (exec_bfd); -} - -#endif /* _WIN32 */ - - -/* TclDebug (const char *fmt, ...) works just like printf() but - * sends the output to the GDB TK debug window. - * Not for normal use; just a convenient tool for debugging - */ - -void -TclDebug (char level, const char *fmt,...) -{ - va_list args; - char *buf; - const char *v[3]; - char *merge; - char *priority; - - switch (level) - { - case 'W': - priority = "W"; - break; - case 'E': - priority = "E"; - break; - case 'X': - priority = "X"; - break; - default: - priority = "I"; - } - - va_start (args, fmt); - - - xvasprintf (&buf, fmt, args); - va_end (args); - - v[0] = "dbug"; - v[1] = priority; - v[2] = buf; - - merge = Tcl_Merge (3, v); - if (Tcl_Eval (gdbtk_interp, merge) != TCL_OK) - Tcl_BackgroundError (gdbtk_interp); - Tcl_Free (merge); - free(buf); -} - - -/* - * The rest of this file contains the start-up, and event handling code for gdbtk. - */ - -/* - * This cleanup function is added to the cleanup list that surrounds the Tk - * main in gdbtk_init. It deletes the Tcl interpreter. - */ - -static void -cleanup_init (void *ignore) -{ - if (gdbtk_interp != NULL) - Tcl_DeleteInterp (gdbtk_interp); - gdbtk_interp = NULL; -} - -/* Come here during long calculations to check for GUI events. Usually invoked - via the QUIT macro. */ - -void -gdbtk_interactive () -{ - /* Tk_DoOneEvent (TK_DONT_WAIT|TK_IDLE_EVENTS); */ -} - -/* Start a timer which will keep the GUI alive while in target_wait. */ -void -gdbtk_start_timer () -{ - static int first = 1; - - if (first) - { - /* first time called, set up all the structs */ - first = 0; - sigemptyset (&nullsigmask); - - act1.sa_handler = x_event_wrapper; - act1.sa_mask = nullsigmask; - act1.sa_flags = 0; - - act2.sa_handler = SIG_IGN; - act2.sa_mask = nullsigmask; - act2.sa_flags = 0; - - it_on.it_interval.tv_sec = 0; - it_on.it_interval.tv_usec = 250000; /* .25 sec */ - it_on.it_value.tv_sec = 0; - it_on.it_value.tv_usec = 250000; - - it_off.it_interval.tv_sec = 0; - it_off.it_interval.tv_usec = 0; - it_off.it_value.tv_sec = 0; - it_off.it_value.tv_usec = 0; - } - - if (target_should_use_timer (¤t_target)) - { - if (!gdbtk_timer_going) - { - sigaction (SIGALRM, &act1, NULL); - setitimer (ITIMER_REAL, &it_on, NULL); - gdbtk_timer_going = 1; - } - } - return; -} - -/* Stop the timer if it is running. */ -void -gdbtk_stop_timer () -{ - if (gdbtk_timer_going) - { - gdbtk_timer_going = 0; - setitimer (ITIMER_REAL, &it_off, NULL); - sigaction (SIGALRM, &act2, NULL); - } - return; -} - -/* Should this target use the timer? See comments before - x_event for the logic behind all this. */ -static int -target_should_use_timer (struct target_ops *t) -{ - return target_is_native (t); -} - -/* Is T a native target? */ -int -target_is_native (struct target_ops *t) -{ - char *name = t->to_shortname; - - if (strcmp (name, "exec") == 0 || strcmp (name, "hpux-threads") == 0 - || strcmp (name, "child") == 0 || strcmp (name, "procfs") == 0 - || strcmp (name, "solaris-threads") == 0 - || strcmp (name, "linuxthreads") == 0 - || strcmp (name, "multi-thread") == 0) - return 1; - - return 0; -} - -/* gdbtk_init installs this function as a final cleanup. */ - -static void -gdbtk_cleanup (PTR dummy) -{ - Tcl_Eval (gdbtk_interp, "gdbtk_cleanup"); - Tcl_Finalize (); -} - - -/* Initialize gdbtk. This involves creating a Tcl interpreter, - * defining all the Tcl commands that the GUI will use, pointing - * all the gdb "hooks" to the correct functions, - * and setting the Tcl auto loading environment so that we can find all - * the Tcl based library files. - */ - -void -gdbtk_init (void) -{ - struct cleanup *old_chain; - char *s; - int element_count; - const char **exec_path; - CONST char *internal_exec_name; - - /* If there is no DISPLAY environment variable, Tk_Init below will fail, - causing gdb to abort. If instead we simply return here, gdb will - gracefully degrade to using the command line interface. */ - -#ifndef _WIN32 - if (getenv ("DISPLAY") == NULL) - { - return; - } -#endif - - old_chain = make_cleanup (cleanup_init, 0); - - /* First init tcl and tk. */ - Tcl_FindExecutable (argv0); - gdbtk_interp = Tcl_CreateInterp (); - -#ifdef TCL_MEM_DEBUG - Tcl_InitMemory (gdbtk_interp); -#endif - - if (!gdbtk_interp) - error ("Tcl_CreateInterp failed"); - - /* We need to check if we are being run from - a bin directory, if not then we may have to - set some environment variables. */ - - internal_exec_name = Tcl_GetNameOfExecutable (); - - Tcl_SplitPath ((char *) internal_exec_name, &element_count, &exec_path); - - if (strcmp (exec_path[element_count - 2], "bin") != 0) - { - /* We check to see if TCL_LIBRARY, TK_LIBRARY, - ITCL_LIBRARY, ITK_LIBRARY, TIX_LIBRARY and maybe - a couple other environment variables have been - set (we don't want to override the User's settings). - If the *_LIBRARY variable is not set, point it at - the source directory. */ - - static char set_libs_path_script[] = "\ - set srcDir [file dirname [file dirname $env(TCL_LIBRARY)]];\n\ -\ - if {![info exists env(TK_LIBRARY)]} {\n\ - set env(TK_LIBRARY) [file join $srcDir tk library]\n\ - }\n\ -\ - if {![info exists env(ITCL_LIBRARY)]} {\n\ - set env(ITCL_LIBRARY) [file join $srcDir itcl itcl library]\n\ - }\n\ -\ - if {![info exists env(ITK_LIBRARY)]} {\n\ - set env(ITK_LIBRARY) [file join $srcDir itcl itk library]\n\ - }\n\ -\ - if {![info exists env(IWIDGETS_LIBRARY)]} {\n\ - set env(IWIDGETS_LIBRARY)\ - [file join $srcDir itcl iwidgets generic]\n\ - }\n\ -\ - if {![info exists env(TIX_LIBRARY)]} {\n\ - set env(TIX_LIBRARY) [file join $srcDir tix library]\n\ - }\n\ -\ - if {![info exists env(GDBTK_LIBRARY)]} {\n\ - set env(GDBTK_LIBRARY) [file join $srcDir gdb gdbtk library]\n\ - }\n\ -\ - # Append the directory with the itcl pkg index\n\ - if {[info exists env(TCLLIBPATH)]} {\n\ - append env(TCLLIBPATH) :[file joing $srcDir itcl]\n\ - } else {\n\ - set env(TCLLIBPATH) [file join $srcDir itcl]\n\ - }\n\ -\ - # We also need to append the iwidgets library path.\n\ - # Unfortunately, there is no IWIDGETS_LIBRARY.\n\ - set IWIDGETS_LIBRARY [file join $srcDir itcl iwidgets generic]\n"; - - Tcl_Obj *commandObj; - - /* Before we can run our script we must set TCL_LIBRARY. */ - if (Tcl_GetVar2 (gdbtk_interp, "env", "TCL_LIBRARY", TCL_GLOBAL_ONLY) == NULL) - { - int i, count; - char *src_dir = SRC_DIR; - const char **src_path; - const char **lib_path; - Tcl_DString lib_dstring; - - Tcl_DStringInit (&lib_dstring); - -#ifdef __CYGWIN__ - /* SRC_DIR from configure is a posix path. Tcl really needs a - windows path. */ - src_dir = (char *) alloca (cygwin_posix_to_win32_path_list_buf_size (SRC_DIR)); - cygwin_posix_to_win32_path_list (SRC_DIR, src_dir); -#endif - Tcl_SplitPath (src_dir, &count, &src_path); - - /* Append tcl/library to src_dir (src_dir=/foo/bar/gdb) */ - lib_path = (const char **) alloca ((count + 2) * sizeof (char *)); - for (i = 0; i < count - 1; i++) - lib_path[i] = src_path[i]; - lib_path[i++] = "tcl"; - lib_path[i++] = "library"; - Tcl_JoinPath (i, lib_path, &lib_dstring); - - /* Set TCL_LIBRARY */ - Tcl_SetVar2 (gdbtk_interp, "env", "TCL_LIBRARY", - Tcl_DStringValue (&lib_dstring) , TCL_GLOBAL_ONLY); - Tcl_DStringFree (&lib_dstring); - Tcl_Free ((char *) src_path); - } - - commandObj = Tcl_NewStringObj (set_libs_path_script, -1); - Tcl_IncrRefCount (commandObj); - Tcl_EvalObj (gdbtk_interp, commandObj); - Tcl_DecrRefCount (commandObj); - } - - Tcl_Free ((char *) exec_path); - - if (Tcl_Init (gdbtk_interp) != TCL_OK) - error ("Tcl_Init failed: %s", gdbtk_interp->result); - - /* Set up some globals used by gdb to pass info to gdbtk - for start up options and the like */ - xasprintf (&s, "%d", inhibit_gdbinit); - Tcl_SetVar2 (gdbtk_interp, "GDBStartup", "inhibit_prefs", s, TCL_GLOBAL_ONLY); - free(s); - - /* Note: Tcl_SetVar2() treats the value as read-only (making a - copy). Unfortunately it does not mark the parameter as - ``const''. */ - Tcl_SetVar2 (gdbtk_interp, "GDBStartup", "host_name", (char*) host_name, TCL_GLOBAL_ONLY); - Tcl_SetVar2 (gdbtk_interp, "GDBStartup", "target_name", (char*) target_name, TCL_GLOBAL_ONLY); - - make_final_cleanup (gdbtk_cleanup, NULL); - - /* Initialize the Paths variable. */ - if (ide_initialize_paths (gdbtk_interp, "") != TCL_OK) - error ("ide_initialize_paths failed: %s", gdbtk_interp->result); - - if (Tk_Init (gdbtk_interp) != TCL_OK) - error ("Tk_Init failed: %s", gdbtk_interp->result); - - if (Itcl_Init (gdbtk_interp) == TCL_ERROR) - error ("Itcl_Init failed: %s", gdbtk_interp->result); - Tcl_StaticPackage (gdbtk_interp, "Itcl", Itcl_Init, - (Tcl_PackageInitProc *) NULL); - - if (Itk_Init (gdbtk_interp) == TCL_ERROR) - error ("Itk_Init failed: %s", gdbtk_interp->result); - Tcl_StaticPackage (gdbtk_interp, "Itk", Itk_Init, - (Tcl_PackageInitProc *) NULL); - - if (Tktable_Init (gdbtk_interp) != TCL_OK) - error ("Tktable_Init failed: %s", gdbtk_interp->result); - - Tcl_StaticPackage (gdbtk_interp, "Tktable", Tktable_Init, - (Tcl_PackageInitProc *) NULL); - /* - * These are the commands to do some Windows Specific stuff... - */ - -#ifdef __CYGWIN32__ - if (ide_create_messagebox_command (gdbtk_interp) != TCL_OK) - error ("messagebox command initialization failed"); - /* On Windows, create a sizebox widget command */ -#if 0 - if (ide_create_sizebox_command (gdbtk_interp) != TCL_OK) - error ("sizebox creation failed"); -#endif - if (ide_create_winprint_command (gdbtk_interp) != TCL_OK) - error ("windows print code initialization failed"); - if (ide_create_win_grab_command (gdbtk_interp) != TCL_OK) - error ("grab support command initialization failed"); - /* Path conversion functions. */ - if (ide_create_cygwin_path_command (gdbtk_interp) != TCL_OK) - error ("cygwin path command initialization failed"); - if (ide_create_shell_execute_command (gdbtk_interp) != TCL_OK) - error ("cygwin shell execute command initialization failed"); -#endif - - /* Only for testing -- and only when it can't be done any - other way. */ - if (cyg_create_warp_pointer_command (gdbtk_interp) != TCL_OK) - error ("warp_pointer command initialization failed"); - - /* - * This adds all the Gdbtk commands. - */ - - if (Gdbtk_Init (gdbtk_interp) != TCL_OK) - { - error ("Gdbtk_Init failed: %s", gdbtk_interp->result); - } - - Tcl_StaticPackage (gdbtk_interp, "Insight", Gdbtk_Init, NULL); - - /* Add a back door to Tk from the gdb console... */ - - add_com ("tk", class_obscure, tk_command, - "Send a command directly into tk."); - - add_com ("view", class_obscure, view_command, - "View a location in the source window."); - - /* - * Set the variable for external editor: - */ - - if (external_editor_command != NULL) - { - Tcl_SetVar (gdbtk_interp, "external_editor_command", - external_editor_command, 0); - xfree (external_editor_command); - external_editor_command = NULL; - } - -#ifdef __CYGWIN32__ - (void) FreeConsole (); -#endif - - discard_cleanups (old_chain); -} - -void -gdbtk_source_start_file (void) -{ - /* find the gdb tcl library and source main.tcl */ -#ifdef NO_TCLPRO_DEBUGGER - static char script[] = "\ -proc gdbtk_find_main {} {\n\ - global Paths GDBTK_LIBRARY\n\ - rename gdbtk_find_main {}\n\ - tcl_findLibrary insight 1.0 {} main.tcl GDBTK_LIBRARY GDBTKLIBRARY\n\ - set Paths(appdir) $GDBTK_LIBRARY\n\ -}\n\ -gdbtk_find_main"; -#else - static char script[] = "\ -proc gdbtk_find_main {} {\n\ - global Paths GDBTK_LIBRARY env\n\ - rename gdbtk_find_main {}\n\ - if {[info exists env(DEBUG_STUB)]} {\n\ - source $env(DEBUG_STUB)\n\ - debugger_init\n\ - set debug_startup 1\n\ - } else {\n\ - set debug_startup 0\n\ - }\n\ - tcl_findLibrary insight 1.0 {} main.tcl GDBTK_LIBRARY GDBTK_LIBRARY\n\ - set Paths(appdir) $GDBTK_LIBRARY\n\ -}\n\ -gdbtk_find_main"; -#endif /* NO_TCLPRO_DEBUGGER */ - - /* now enable gdbtk to parse the output from gdb */ - gdbtk_disable_fputs = 0; - - if (Tcl_GlobalEval (gdbtk_interp, (char *) script) != TCL_OK) - { - const char *msg; - - /* Force errorInfo to be set up propertly. */ - Tcl_AddErrorInfo (gdbtk_interp, ""); - msg = Tcl_GetVar (gdbtk_interp, "errorInfo", TCL_GLOBAL_ONLY); - -#ifdef _WIN32 - /* On windows, display the error using a pop-up message box. - If GDB wasn't started from the DOS prompt, the user won't - get to see the failure reason. */ - MessageBox (NULL, msg, NULL, MB_OK | MB_ICONERROR | MB_TASKMODAL); - throw_exception (RETURN_ERROR); -#else - /* FIXME: cagney/2002-04-17: Wonder what the lifetime of - ``msg'' is - does it need a cleanup? */ - error ("%s", msg); -#endif - } - - /* Now source in the filename provided by the --tclcommand option. - This is mostly used for the gdbtk testsuite... */ - - if (gdbtk_source_filename != NULL) - { - char *s = "after idle source "; - char *script = concat (s, gdbtk_source_filename, (char *) NULL); - Tcl_Eval (gdbtk_interp, script); - free (gdbtk_source_filename); - free (script); - } -} - -static void -gdbtk_init_1 (char *arg0) -{ - argv0 = arg0; - init_ui_hook = NULL; -} - -/* gdbtk_test is used in main.c to validate the -tclcommand option to - gdb, which sources in a file of tcl code after idle during the - startup procedure. */ - -int -gdbtk_test (char *filename) -{ - if (access (filename, R_OK) != 0) - return 0; - else - gdbtk_source_filename = xstrdup (filename); - return 1; -} - -/* Come here during initialize_all_files () */ - -void -_initialize_gdbtk () -{ - /* Current_interpreter not set yet, so we must check - if "interpreter_p" is set to "insight" to know if - insight is GOING to run. */ - if (strcmp (interpreter_p, "insight") == 0) - init_ui_hook = gdbtk_init_1; -#ifdef __CYGWIN__ - else - { - DWORD ft = GetFileType (GetStdHandle (STD_INPUT_HANDLE)); - - switch (ft) - { - case FILE_TYPE_DISK: - case FILE_TYPE_CHAR: - case FILE_TYPE_PIPE: - break; - default: - AllocConsole (); - cygwin32_attach_handle_to_fd ("/dev/conin", 0, - GetStdHandle (STD_INPUT_HANDLE), - 1, GENERIC_READ); - cygwin32_attach_handle_to_fd ("/dev/conout", 1, - GetStdHandle (STD_OUTPUT_HANDLE), - 0, GENERIC_WRITE); - cygwin32_attach_handle_to_fd ("/dev/conout", 2, - GetStdHandle (STD_ERROR_HANDLE), - 0, GENERIC_WRITE); - break; - } - } -#endif -} - -static void -tk_command (char *cmd, int from_tty) -{ - int retval; - char *result; - struct cleanup *old_chain; - - /* Catch case of no argument, since this will make the tcl interpreter - dump core. */ - if (cmd == NULL) - error_no_arg ("tcl command to interpret"); - - retval = Tcl_Eval (gdbtk_interp, cmd); - - result = xstrdup (gdbtk_interp->result); - - old_chain = make_cleanup (free, result); - - if (retval != TCL_OK) - error ("%s", result); - - printf_unfiltered ("%s\n", result); - - do_cleanups (old_chain); -} - -static void -view_command (char *args, int from_tty) -{ - char *script; - struct cleanup *old_chain; - - if (args != NULL) - { - xasprintf (&script, - "[lindex [ManagedWin::find SrcWin] 0] location BROWSE_TAG [gdb_loc %s]", - args); - old_chain = make_cleanup (xfree, script); - if (Tcl_Eval (gdbtk_interp, script) != TCL_OK) - { - Tcl_Obj *obj = Tcl_GetObjResult (gdbtk_interp); - error ("%s", Tcl_GetStringFromObj (obj, NULL)); - } - - do_cleanups (old_chain); - } - else - error ("Argument required (location to view)"); -} |