/* Tcl/Tk interface routines.
- Copyright 1994, 1995 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
Written by Stu Grossman <grossman@cygnus.com> of Cygnus Support.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "symtab.h"
#include "target.h"
#include <tcl.h>
#include <tk.h>
+/* #include <itcl.h> */
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
#include <varargs.h>
+#endif
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <setjmp.h>
#include "top.h"
#include <sys/ioctl.h>
-#include <string.h>
+#include "gdb_string.h"
#include "dis-asm.h"
#include <stdio.h>
#include "gdbcmd.h"
+#ifndef WINNT
#ifndef FIOASYNC
#include <sys/stropts.h>
#endif
+#endif
+
+#ifdef WINNT
+#define GDBTK_PATH_SEP ";"
+#else
+#define GDBTK_PATH_SEP ":"
+#endif
+
+/* Some versions (1.3.79, 1.3.81) of Linux don't support SIOCSPGRP the way
+ gdbtk wants to use it... */
+#ifdef __linux__
+#undef SIOCSPGRP
+#endif
+
+static void null_routine PARAMS ((int));
+static void gdbtk_flush PARAMS ((FILE *));
+static void gdbtk_fputs PARAMS ((const char *, FILE *));
+static int gdbtk_query PARAMS ((const char *, va_list));
+static char *gdbtk_readline PARAMS ((char *));
+static void gdbtk_init PARAMS ((void));
+static void tk_command_loop PARAMS ((void));
+static void gdbtk_call_command PARAMS ((struct cmd_list_element *, char *, int));
+static int gdbtk_wait PARAMS ((int, struct target_waitstatus *));
+static void x_event PARAMS ((int));
+static void gdbtk_interactive PARAMS ((void));
+static void cleanup_init PARAMS ((int));
+static void tk_command PARAMS ((char *, int));
+static int gdb_disassemble PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int compare_lines PARAMS ((const PTR, const PTR));
+static int gdbtk_dis_asm_read_memory PARAMS ((bfd_vma, bfd_byte *, int, disassemble_info *));
+static int gdb_path_conv PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_stop PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_listfiles PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int call_wrapper PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_cmd PARAMS ((ClientData, Tcl_Interp *, int, char *argv[]));
+static int gdb_fetch_registers PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static void gdbtk_readline_end PARAMS ((void));
+static int gdb_changed_register_list PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static void register_changed_p PARAMS ((int, void *));
+static int gdb_get_breakpoint_list PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_get_breakpoint_info PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static void breakpoint_notify PARAMS ((struct breakpoint *, const char *));
+static void gdbtk_create_breakpoint PARAMS ((struct breakpoint *));
+static void gdbtk_delete_breakpoint PARAMS ((struct breakpoint *));
+static void gdbtk_modify_breakpoint PARAMS ((struct breakpoint *));
+static int gdb_loc PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_eval PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int gdb_sourcelines PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static int map_arg_registers PARAMS ((int, char *[], void (*) (int, void *), void *));
+static void get_register_name PARAMS ((int, void *));
+static int gdb_regnames PARAMS ((ClientData, Tcl_Interp *, int, char *[]));
+static void get_register PARAMS ((int, void *));
/* Handle for TCL interpreter */
-static Tcl_Interp *interp = NULL;
-/* Handle for TK main window */
-static Tk_Window mainWindow = NULL;
+static Tcl_Interp *interp = NULL;
static int x_fd; /* X network socket */
-/* This variable determines where memory used for disassembly is read from.
+/* This variable is true when the inferior is running. Although it's
+ possible to disable most input from widgets and thus prevent
+ attempts to do anything while the inferior is running, any commands
+ that get through - even a simple memory read - are Very Bad, and
+ may cause GDB to crash or behave strangely. So, this variable
+ provides an extra layer of defense. */
+
+static int running_now;
- If > 0, then disassembly comes from the exec file rather than the target
- (which might be at the other end of a slow serial link). If == 0 then
- disassembly comes from target. If < 0 disassembly is automatically switched
- to the target if it's an inferior process, otherwise the exec file is
- used.
- */
+/* This variable determines where memory used for disassembly is read from.
+ If > 0, then disassembly comes from the exec file rather than the
+ target (which might be at the other end of a slow serial link). If
+ == 0 then disassembly comes from target. If < 0 disassembly is
+ automatically switched to the target if it's an inferior process,
+ otherwise the exec file is used. */
static int disassemble_from_exec = -1;
+static char *Gdbtk_Library;
+
+/* Supply malloc calls for tcl/tk. */
+
+char *
+Tcl_Alloc (size)
+ unsigned int size;
+{
+ return xmalloc (size);
+}
+
+char *
+Tcl_Realloc (ptr, size)
+ char *ptr;
+ unsigned int size;
+{
+ return xrealloc (ptr, size);
+}
+
+void
+Tcl_Free(ptr)
+ char *ptr;
+{
+ free (ptr);
+}
+
static void
null_routine(arg)
int arg;
const char *ptr;
FILE *stream;
{
+
if (result_ptr)
Tcl_DStringAppend (result_ptr, (char *)ptr, -1);
else
}
static int
-gdbtk_query (args)
+gdbtk_query (query, args)
+ const char *query;
va_list args;
{
- char *query;
- char buf[200];
+ char buf[200], *merge[2];
+ char *command;
long val;
- query = va_arg (args, char *);
-
vsprintf (buf, query, args);
- Tcl_VarEval (interp, "gdbtk_tcl_query ", "{", buf, "}", NULL);
+ merge[0] = "gdbtk_tcl_query";
+ merge[1] = buf;
+ command = Tcl_Merge (2, merge);
+ Tcl_Eval (interp, command);
+ free (command);
val = atol (interp->result);
return val;
}
+
+/* VARARGS */
+static void
+#ifdef ANSI_PROTOTYPES
+gdbtk_readline_begin (char *format, ...)
+#else
+gdbtk_readline_begin (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+ char buf[200], *merge[2];
+ char *command;
+
+#ifdef ANSI_PROTOTYPES
+ va_start (args, format);
+#else
+ char *format;
+ va_start (args);
+ format = va_arg (args, char *);
+#endif
+
+ vsprintf (buf, format, args);
+ merge[0] = "gdbtk_tcl_readline_begin";
+ merge[1] = buf;
+ command = Tcl_Merge (2, merge);
+ Tcl_Eval (interp, command);
+ free (command);
+}
+
+static char *
+gdbtk_readline (prompt)
+ char *prompt;
+{
+ char *merge[2];
+ char *command;
+ int result;
+
+ merge[0] = "gdbtk_tcl_readline";
+ merge[1] = prompt;
+ command = Tcl_Merge (2, merge);
+ result = Tcl_Eval (interp, command);
+ free (command);
+ if (result == TCL_OK)
+ {
+ return (strdup (interp -> result));
+ }
+ else
+ {
+ gdbtk_fputs (interp -> result, gdb_stdout);
+ gdbtk_fputs ("\n", gdb_stdout);
+ return (NULL);
+ }
+}
+
+static void
+gdbtk_readline_end ()
+{
+ Tcl_Eval (interp, "gdbtk_tcl_readline_end");
+}
+
\f
static void
+#ifdef ANSI_PROTOTYPES
+dsprintf_append_element (Tcl_DString *dsp, char *format, ...)
+#else
dsprintf_append_element (va_alist)
va_dcl
+#endif
{
va_list args;
+ char buf[1024];
+
+#ifdef ANSI_PROTOTYPES
+ va_start (args, format);
+#else
Tcl_DString *dsp;
char *format;
- char buf[1024];
va_start (args);
-
dsp = va_arg (args, Tcl_DString *);
format = va_arg (args, char *);
+#endif
vsprintf (buf, format, args);
Tcl_DStringAppendElement (dsp, buf);
}
+static int
+gdb_path_conv (clientData, interp, argc, argv)
+ ClientData clientData;
+ Tcl_Interp *interp;
+ int argc;
+ char *argv[];
+{
+#ifdef WINNT
+ char pathname[256], *ptr;
+ if (argc != 2)
+ error ("wrong # args");
+ cygwin32_conv_to_full_win32_path (argv[1], pathname);
+ for (ptr = pathname; *ptr; ptr++)
+ {
+ if (*ptr == '\\')
+ *ptr = '/';
+ }
+#else
+ char *pathname = argv[1];
+#endif
+ Tcl_DStringAppend (result_ptr, pathname, strlen(pathname));
+ return TCL_OK;
+}
+
static int
gdb_get_breakpoint_list (clientData, interp, argc, argv)
ClientData clientData;
if (b->type != bp_breakpoint)
return;
+ /* We ensure that ACTION contains no special Tcl characters, so we
+ can do this. */
sprintf (buf, "gdbtk_tcl_breakpoint %s %d", action, b->number);
v = Tcl_Eval (interp, buf);
dsprintf_append_element (result_ptr, "%d", sal.line); /* line number */
- dsprintf_append_element (result_ptr, "0x%lx", pc); /* PC */
+ dsprintf_append_element (result_ptr, "0x%s", paddr_nz(pc)); /* PC */
return TCL_OK;
}
argc--;
argv++;
- return map_arg_registers (argc, argv, get_register_name, 0);
+ return map_arg_registers (argc, argv, get_register_name, NULL);
}
#ifndef REGISTER_CONVERTIBLE
else
memcpy (virtual_buffer, raw_buffer, REGISTER_VIRTUAL_SIZE (regnum));
- val_print (REGISTER_VIRTUAL_TYPE (regnum), virtual_buffer, 0,
- gdb_stdout, format, 1, 0, Val_pretty_default);
+ if (format == 'r')
+ {
+ int j;
+ printf_filtered ("0x");
+ for (j = 0; j < REGISTER_RAW_SIZE (regnum); j++)
+ {
+ register int idx = TARGET_BYTE_ORDER == BIG_ENDIAN ? j
+ : REGISTER_RAW_SIZE (regnum) - 1 - j;
+ printf_filtered ("%02x", (unsigned char)raw_buffer[idx]);
+ }
+ }
+ else
+ val_print (REGISTER_VIRTUAL_TYPE (regnum), virtual_buffer, 0,
+ gdb_stdout, format, 1, 0, Val_pretty_default);
Tcl_DStringAppend (result_ptr, " ", -1);
}
argc--;
format = **argv++;
- return map_arg_registers (argc, argv, get_register, format);
+ return map_arg_registers (argc, argv, get_register, (void *) format);
}
/* This contains the previous values of the registers, since the last call to
void *argp; /* Ignored */
{
char raw_buffer[MAX_REGISTER_RAW_SIZE];
- char buf[100];
if (read_relative_register_raw_bytes (regnum, raw_buffer))
return;
REGISTER_RAW_SIZE (regnum)) == 0)
return;
- /* Found a changed register. Save new value and return it's number. */
+ /* Found a changed register. Save new value and return its number. */
memcpy (&old_regs[REGISTER_BYTE (regnum)], raw_buffer,
REGISTER_RAW_SIZE (regnum));
return map_arg_registers (argc, argv, register_changed_p, NULL);
}
\f
-/* This implements the TCL command `gdb_cmd', which sends it's argument into
+/* This implements the TCL command `gdb_cmd', which sends its argument into
the GDB command scanner. */
static int
if (argc != 2)
error ("wrong # args");
+ if (running_now)
+ return TCL_OK;
+
execute_command (argv[1], 1);
bpstat_do_actions (&stop_bpstat);
gdb_flush (gdb_stdout); /* Sometimes error output comes here as well */
-/* In case of an error, we may need to force the GUI into idle mode because
- gdbtk_call_command may have bombed out while in the command routine. */
+ /* In case of an error, we may need to force the GUI into idle
+ mode because gdbtk_call_command may have bombed out while in
+ the command routine. */
- Tcl_VarEval (interp, "gdbtk_tcl_idle", NULL);
+ running_now = 0;
+ Tcl_Eval (interp, "gdbtk_tcl_idle");
}
do_cleanups (ALL_CLEANUPS);
{
CORE_ADDR pc, low, high;
int mixed_source_and_assembly;
- static disassemble_info di = {
- (fprintf_ftype) fprintf_filtered, /* fprintf_func */
- gdb_stdout, /* stream */
- NULL, /* application_data */
- 0, /* flags */
- NULL, /* private_data */
- NULL, /* read_memory_func */
- dis_asm_memory_error, /* memory_error_func */
- dis_asm_print_address /* print_address_func */
- };
+ static disassemble_info di;
+ static int di_initialized;
+
+ if (! di_initialized)
+ {
+ INIT_DISASSEMBLE_INFO_NO_ARCH (di, gdb_stdout,
+ (fprintf_ftype) fprintf_unfiltered);
+ di.flavour = bfd_target_unknown_flavour;
+ di.memory_error_func = dis_asm_memory_error;
+ di.print_address_func = dis_asm_print_address;
+ di_initialized = 1;
+ }
+
+ di.mach = tm_print_insn_info.mach;
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ tm_print_insn_info.endian = BFD_ENDIAN_BIG;
+ else
+ tm_print_insn_info.endian = BFD_ENDIAN_LITTLE;
if (argc != 3 && argc != 4)
error ("wrong # args");
correctly.
Else, we're debugging a remote process, and should disassemble from the
- exec file for speed. However, this is no good if the target modifies it's
+ exec file for speed. However, this is no good if the target modifies its
code (for relocation, or whatever).
*/
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 (interp, cmd);
result = strdup (interp->result);
cleanup_init (ignored)
int ignored;
{
- if (mainWindow != NULL)
- Tk_DestroyWindow (mainWindow);
- mainWindow = NULL;
-
if (interp != NULL)
Tcl_DeleteInterp (interp);
interp = NULL;
{
/* Process pending events */
- while (Tk_DoOneEvent (TK_DONT_WAIT|TK_ALL_EVENTS) != 0);
+ while (Tcl_DoOneEvent (TCL_DONT_WAIT|TCL_ALL_EVENTS) != 0);
}
static int
action.sa_handler = x_event;
action.sa_mask = nullsigmask;
action.sa_flags = SA_RESTART;
+#ifndef WINNT
sigaction(SIGIO, &action, NULL);
+#endif
pid = target_wait (pid, ourstatus);
action.sa_handler = SIG_IGN;
- sigaction(SIGIO, &action, NULL);
+#ifndef WINNT
+ sigaction(SIGIO, &action, NULL);
+#endif
return pid;
}
char *arg;
int from_tty;
{
+ running_now = 0;
if (cmdblk->class == class_run)
{
- Tcl_VarEval (interp, "gdbtk_tcl_busy", NULL);
+ running_now = 1;
+ Tcl_Eval (interp, "gdbtk_tcl_busy");
(*cmdblk->function.cfunc)(arg, from_tty);
- Tcl_VarEval (interp, "gdbtk_tcl_idle", NULL);
+ Tcl_Eval (interp, "gdbtk_tcl_idle");
+ running_now = 0;
}
else
(*cmdblk->function.cfunc)(arg, from_tty);
}
+/* This function is called instead of gdb's internal command loop. This is the
+ last chance to do anything before entering the main Tk event loop. */
+
+static void
+tk_command_loop ()
+{
+ extern GDB_FILE *instream;
+
+ /* We no longer want to use stdin as the command input stream */
+ instream = NULL;
+ Tcl_Eval (interp, "gdbtk_tcl_preloop");
+ Tk_MainLoop ();
+}
+
static void
gdbtk_init ()
{
struct cleanup *old_chain;
- char *gdbtk_filename;
- int i;
+ char *lib, *gdbtk_lib, gdbtk_lib_tmp[1024],gdbtk_file[128];
+ int i, found_main;
struct sigaction action;
static sigset_t nullsigmask = {0};
+ /* 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 WINNT
+ if (getenv ("DISPLAY") == NULL)
+ return;
+#endif
+
old_chain = make_cleanup (cleanup_init, 0);
/* First init tcl and tk. */
if (!interp)
error ("Tcl_CreateInterp failed");
- mainWindow = Tk_CreateMainWindow (interp, NULL, "gdb", "Gdb");
-
- if (!mainWindow)
- return; /* DISPLAY probably not set */
-
if (Tcl_Init(interp) != TCL_OK)
error ("Tcl_Init failed: %s", interp->result);
+ /*
+ if (Itcl_Init(interp) == TCL_ERROR)
+ error ("Itcl_Init failed: %s", interp->result);
+ */
+
if (Tk_Init(interp) != TCL_OK)
error ("Tk_Init failed: %s", interp->result);
Tcl_CreateCommand (interp, "gdb_cmd", call_wrapper, gdb_cmd, NULL);
Tcl_CreateCommand (interp, "gdb_loc", call_wrapper, gdb_loc, NULL);
+ Tcl_CreateCommand (interp, "gdb_path_conv", call_wrapper, gdb_path_conv, NULL);
Tcl_CreateCommand (interp, "gdb_sourcelines", call_wrapper, gdb_sourcelines,
NULL);
Tcl_CreateCommand (interp, "gdb_listfiles", call_wrapper, gdb_listfiles,
Tcl_CreateCommand (interp, "gdb_get_breakpoint_info", call_wrapper,
gdb_get_breakpoint_info, NULL);
- command_loop_hook = Tk_MainLoop;
- print_frame_info_listing_hook = null_routine;
+ command_loop_hook = tk_command_loop;
+ print_frame_info_listing_hook =
+ (void (*) PARAMS ((struct symtab *, int, int, int))) null_routine;
query_hook = gdbtk_query;
flush_hook = gdbtk_flush;
create_breakpoint_hook = gdbtk_create_breakpoint;
interactive_hook = gdbtk_interactive;
target_wait_hook = gdbtk_wait;
call_command_hook = gdbtk_call_command;
+ readline_begin_hook = gdbtk_readline_begin;
+ readline_hook = gdbtk_readline;
+ readline_end_hook = gdbtk_readline_end;
/* Get the file descriptor for the X server */
- x_fd = ConnectionNumber (Tk_Display (mainWindow));
+ x_fd = ConnectionNumber (Tk_Display (Tk_MainWindow (interp)));
/* Setup for I/O interrupts */
action.sa_mask = nullsigmask;
action.sa_flags = 0;
action.sa_handler = SIG_IGN;
+#ifndef WINNT
sigaction(SIGIO, &action, NULL);
+#endif
#ifdef FIOASYNC
i = 1;
#endif /* F_SETOWN */
#endif /* !SIOCSPGRP */
#else
+#ifndef WINNT
if (ioctl (x_fd, I_SETSIG, S_INPUT|S_RDNORM) < 0)
perror_with_name ("gdbtk_init: ioctl I_SETSIG failed");
+#endif
+
#endif /* ifndef FIOASYNC */
add_com ("tk", class_obscure, tk_command,
Tcl_LinkVar (interp, "disassemble-from-exec", (char *)&disassemble_from_exec,
TCL_LINK_INT);
- /* Load up gdbtk.tcl after all the environment stuff has been setup. */
+ /* find the gdb tcl library and source main.tcl */
- gdbtk_filename = getenv ("GDBTK_FILENAME");
- if (!gdbtk_filename)
- if (access ("gdbtk.tcl", R_OK) == 0)
- gdbtk_filename = "gdbtk.tcl";
+ gdbtk_lib = getenv ("GDBTK_LIBRARY");
+ if (!gdbtk_lib)
+ if (access ("gdbtcl/main.tcl", R_OK) == 0)
+ gdbtk_lib = "gdbtcl";
else
- gdbtk_filename = GDBTK_FILENAME;
+ gdbtk_lib = GDBTK_LIBRARY;
+
+ strcpy (gdbtk_lib_tmp, gdbtk_lib);
+ found_main = 0;
+ /* see if GDBTK_LIBRARY is a path list */
+ lib = strtok (gdbtk_lib_tmp, GDBTK_PATH_SEP);
+ do
+ {
+ if (Tcl_VarEval (interp, "lappend auto_path ", lib, NULL) != TCL_OK)
+ {
+ fputs_unfiltered (Tcl_GetVar (interp, "errorInfo", 0), gdb_stderr);
+ error ("");
+ }
+ if (!found_main)
+ {
+ strcpy (gdbtk_file, lib);
+ strcat (gdbtk_file, "/main.tcl");
+ if (access (gdbtk_file, R_OK) == 0)
+ {
+ found_main++;
+ Tcl_SetVar (interp, "GDBTK_LIBRARY", lib, 0);
+ }
+ }
+ }
+ while (lib = strtok (NULL, ":"));
+
+ if (!found_main)
+ {
+ fputs_unfiltered_hook = NULL; /* Force errors to stdout/stderr */
+ if (getenv("GDBTK_LIBRARY"))
+ {
+ fprintf_unfiltered (stderr, "Unable to find main.tcl in %s\n",getenv("GDBTK_LIBRARY"));
+ fprintf_unfiltered (stderr,
+ "Please set GDBTK_LIBRARY to a path that includes the GDB tcl files.\n");
+ }
+ else
+ {
+ fprintf_unfiltered (stderr, "Unable to find main.tcl in %s\n", GDBTK_LIBRARY);
+ fprintf_unfiltered (stderr, "You might want to set GDBTK_LIBRARY\n");
+ }
+ error("");
+ }
/* Defer setup of fputs_unfiltered_hook to near the end so that error messages
prior to this point go to stdout/stderr. */
fputs_unfiltered_hook = gdbtk_fputs;
- if (Tcl_EvalFile (interp, gdbtk_filename) != TCL_OK)
+ if (Tcl_EvalFile (interp, gdbtk_file) != TCL_OK)
{
fputs_unfiltered_hook = NULL; /* Force errors to stdout/stderr */
- fprintf_unfiltered (stderr, "%s:%d: %s\n", gdbtk_filename,
+ fprintf_unfiltered (stderr, "%s:%d: %s\n", gdbtk_file,
interp->errorLine, interp->result);
fputs_unfiltered ("Stack trace:\n", gdb_stderr);
discard_cleanups (old_chain);
}
-/* Come here during initialze_all_files () */
+/* Come here during initialize_all_files () */
void
_initialize_gdbtk ()
projects / deliverable / binutils-gdb.git / blobdiff