f70a7d6187
tui: * tuiSource.c (tuiVerticalSourceScroll): Use get_frame_pc. * tuiSourceWin.c (tuiHorizontalSourceScroll): Likewise. * tuiStack.c (tui_get_function_from_frame): Likewise. (tuiShowFrameInfo): Likewise. * tuiWin.c (_makeVisibleWithNewHeight): Likewise. * tui-hooks.c (tui_selected_frame_level_changed_hook): Likewise. * tuiDisassem.c (tuiVerticalDisassemScroll): Likewise. Include "disasm.h".
445 lines
12 KiB
C
445 lines
12 KiB
C
/* TUI display locator.
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Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
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Inc.
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Contributed by Hewlett-Packard Company.
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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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* FIXME: cagney/2002-02-28: The GDB coding standard indicates that
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"defs.h" should be included first. Unfortunatly some systems
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(currently Debian GNU/Linux) include the <stdbool.h> via <curses.h>
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and they clash with "bfd.h"'s definiton of true/false. The correct
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fix is to remove true/false from "bfd.h", however, until that
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happens, hack around it by including "config.h" and <curses.h>
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first. */
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#include "config.h"
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#else
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#ifdef HAVE_CURSES_H
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#include <curses.h>
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#endif
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#endif
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#include "defs.h"
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#include "symtab.h"
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#include "breakpoint.h"
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#include "frame.h"
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#include "command.h"
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#include "inferior.h"
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#include "target.h"
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#include "top.h"
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#include "tui.h"
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#include "tuiData.h"
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#include "tuiStack.h"
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#include "tuiGeneralWin.h"
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#include "tuiSource.h"
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#include "tuiSourceWin.h"
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#include "tui-file.h"
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/* Get a printable name for the function at the address.
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The symbol name is demangled if demangling is turned on.
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Returns a pointer to a static area holding the result. */
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static char* tui_get_function_from_frame (struct frame_info *fi);
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/* Set the filename portion of the locator. */
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static void tui_set_locator_filename (const char *filename);
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/* Update the locator, with the provided arguments. */
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static void tui_set_locator_info (const char *filename, const char *procname,
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int lineno, CORE_ADDR addr);
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static void tui_update_command (char *, int);
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/* Create the status line to display as much information as we
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can on this single line: target name, process number, current
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function, current line, current PC, SingleKey mode. */
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static char*
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tui_make_status_line (TuiLocatorElement* loc)
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{
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char* string;
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char line_buf[50], *pname;
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char* buf;
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int status_size;
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int i, proc_width;
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const char* pid_name;
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const char* pc_buf;
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int target_width;
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int pid_width;
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int line_width;
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int pc_width;
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struct ui_file *pc_out;
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if (ptid_equal (inferior_ptid, null_ptid))
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pid_name = "No process";
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else
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pid_name = target_pid_to_str (inferior_ptid);
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target_width = strlen (target_shortname);
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if (target_width > MAX_TARGET_WIDTH)
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target_width = MAX_TARGET_WIDTH;
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pid_width = strlen (pid_name);
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if (pid_width > MAX_PID_WIDTH)
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pid_width = MAX_PID_WIDTH;
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status_size = termWidth ();
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string = (char *) xmalloc (status_size + 1);
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buf = (char*) alloca (status_size + 1);
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/* Translate line number and obtain its size. */
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if (loc->lineNo > 0)
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sprintf (line_buf, "%d", loc->lineNo);
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else
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strcpy (line_buf, "??");
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line_width = strlen (line_buf);
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if (line_width < MIN_LINE_WIDTH)
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line_width = MIN_LINE_WIDTH;
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/* Translate PC address. */
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pc_out = tui_sfileopen (128);
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print_address_numeric (loc->addr, 1, pc_out);
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pc_buf = tui_file_get_strbuf (pc_out);
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pc_width = strlen (pc_buf);
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/* First determine the amount of proc name width we have available.
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The +1 are for a space separator between fields.
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The -1 are to take into account the \0 counted by sizeof. */
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proc_width = (status_size
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- (target_width + 1)
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- (pid_width + 1)
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- (sizeof (PROC_PREFIX) - 1 + 1)
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- (sizeof (LINE_PREFIX) - 1 + line_width + 1)
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- (sizeof (PC_PREFIX) - 1 + pc_width + 1)
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- (tui_current_key_mode == tui_single_key_mode
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? (sizeof (SINGLE_KEY) - 1 + 1)
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: 0));
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/* If there is no room to print the function name, try by removing
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some fields. */
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if (proc_width < MIN_PROC_WIDTH)
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{
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proc_width += target_width + 1;
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target_width = 0;
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if (proc_width < MIN_PROC_WIDTH)
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{
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proc_width += pid_width + 1;
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pid_width = 0;
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if (proc_width <= MIN_PROC_WIDTH)
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{
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proc_width += pc_width + sizeof (PC_PREFIX) - 1 + 1;
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pc_width = 0;
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if (proc_width < 0)
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{
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proc_width += line_width + sizeof (LINE_PREFIX) - 1 + 1;
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line_width = 0;
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if (proc_width < 0)
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proc_width = 0;
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}
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}
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}
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}
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/* Now convert elements to string form */
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pname = loc->procName;
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/* Now create the locator line from the string version
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of the elements. We could use sprintf() here but
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that wouldn't ensure that we don't overrun the size
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of the allocated buffer. strcat_to_buf() will. */
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*string = (char) 0;
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if (target_width > 0)
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{
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sprintf (buf, "%*.*s ",
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-target_width, target_width, target_shortname);
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strcat_to_buf (string, status_size, buf);
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}
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if (pid_width > 0)
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{
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sprintf (buf, "%*.*s ",
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-pid_width, pid_width, pid_name);
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strcat_to_buf (string, status_size, buf);
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}
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/* Show whether we are in SingleKey mode. */
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if (tui_current_key_mode == tui_single_key_mode)
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{
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strcat_to_buf (string, status_size, SINGLE_KEY);
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strcat_to_buf (string, status_size, " ");
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}
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/* procedure/class name */
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if (proc_width > 0)
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{
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if (strlen (pname) > proc_width)
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sprintf (buf, "%s%*.*s* ", PROC_PREFIX,
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1 - proc_width, proc_width - 1, pname);
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else
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sprintf (buf, "%s%*.*s ", PROC_PREFIX,
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-proc_width, proc_width, pname);
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strcat_to_buf (string, status_size, buf);
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}
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if (line_width > 0)
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{
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sprintf (buf, "%s%*.*s ", LINE_PREFIX,
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-line_width, line_width, line_buf);
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strcat_to_buf (string, status_size, buf);
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}
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if (pc_width > 0)
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{
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strcat_to_buf (string, status_size, PC_PREFIX);
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strcat_to_buf (string, status_size, pc_buf);
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}
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for (i = strlen (string); i < status_size; i++)
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string[i] = ' ';
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string[status_size] = (char) 0;
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ui_file_delete (pc_out);
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return string;
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}
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/* Get a printable name for the function at the address.
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The symbol name is demangled if demangling is turned on.
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Returns a pointer to a static area holding the result. */
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static char*
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tui_get_function_from_frame (struct frame_info *fi)
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{
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static char name[256];
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struct ui_file *stream = tui_sfileopen (256);
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char *p;
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print_address_symbolic (get_frame_pc (fi), stream, demangle, "");
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p = tui_file_get_strbuf (stream);
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/* Use simple heuristics to isolate the function name. The symbol can
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be demangled and we can have function parameters. Remove them because
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the status line is too short to display them. */
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if (*p == '<')
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p++;
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strncpy (name, p, sizeof (name));
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p = strchr (name, '(');
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if (!p)
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p = strchr (name, '>');
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if (p)
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*p = 0;
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p = strchr (name, '+');
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if (p)
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*p = 0;
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ui_file_delete (stream);
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return name;
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}
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/*
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** tuiShowLocatorContent()
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*/
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void
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tuiShowLocatorContent (void)
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{
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char *string;
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TuiGenWinInfoPtr locator;
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locator = locatorWinInfoPtr ();
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if (m_genWinPtrNotNull (locator) && locator->handle != (WINDOW *) NULL)
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{
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TuiWinElementPtr element;
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element = (TuiWinElementPtr) locator->content[0];
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string = tui_make_status_line (&element->whichElement.locator);
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wmove (locator->handle, 0, 0);
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wstandout (locator->handle);
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waddstr (locator->handle, string);
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wclrtoeol (locator->handle);
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wstandend (locator->handle);
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tuiRefreshWin (locator);
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wmove (locator->handle, 0, 0);
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xfree (string);
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locator->contentInUse = TRUE;
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}
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}
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/* Set the filename portion of the locator. */
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static void
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tui_set_locator_filename (const char *filename)
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{
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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TuiLocatorElementPtr element;
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if (locator->content[0] == (Opaque) NULL)
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{
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tui_set_locator_info (filename, NULL, 0, 0);
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return;
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}
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element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
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element->fileName[0] = 0;
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strcat_to_buf (element->fileName, MAX_LOCATOR_ELEMENT_LEN, filename);
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}
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/* Update the locator, with the provided arguments. */
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static void
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tui_set_locator_info (const char *filename, const char *procname, int lineno,
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CORE_ADDR addr)
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{
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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TuiLocatorElementPtr element;
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/* Allocate the locator content if necessary. */
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if (locator->contentSize <= 0)
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{
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locator->content = (OpaquePtr) allocContent (1, locator->type);
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locator->contentSize = 1;
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}
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element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
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element->procName[0] = (char) 0;
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strcat_to_buf (element->procName, MAX_LOCATOR_ELEMENT_LEN, procname);
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element->lineNo = lineno;
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element->addr = addr;
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tui_set_locator_filename (filename);
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}
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/* Update only the filename portion of the locator. */
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void
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tuiUpdateLocatorFilename (const char *filename)
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{
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tui_set_locator_filename (filename);
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tuiShowLocatorContent ();
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}
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/* Function to print the frame information for the TUI. */
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void
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tuiShowFrameInfo (struct frame_info *fi)
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{
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TuiWinInfoPtr winInfo;
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register int i;
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if (fi)
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{
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register int startLine, i;
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CORE_ADDR low;
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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int sourceAlreadyDisplayed;
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struct symtab_and_line sal;
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find_frame_sal (fi, &sal);
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sourceAlreadyDisplayed = sal.symtab != 0
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&& tuiSourceIsDisplayed (sal.symtab->filename);
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tui_set_locator_info (sal.symtab == 0 ? "??" : sal.symtab->filename,
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tui_get_function_from_frame (fi),
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sal.line,
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get_frame_pc (fi));
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tuiShowLocatorContent ();
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startLine = 0;
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for (i = 0; i < (sourceWindows ())->count; i++)
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{
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TuiWhichElement *item;
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winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
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item = &((TuiWinElementPtr) locator->content[0])->whichElement;
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if (winInfo == srcWin)
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{
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startLine = (item->locator.lineNo -
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(winInfo->generic.viewportHeight / 2)) + 1;
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if (startLine <= 0)
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startLine = 1;
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}
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else
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{
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if (find_pc_partial_function (get_frame_pc (fi), (char **) NULL,
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&low, (CORE_ADDR) NULL) == 0)
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error ("No function contains program counter for selected frame.\n");
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else
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low = tuiGetLowDisassemblyAddress (low, get_frame_pc (fi));
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}
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if (winInfo == srcWin)
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{
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TuiLineOrAddress l;
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l.lineNo = startLine;
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if (!(sourceAlreadyDisplayed
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&& tuiLineIsDisplayed (item->locator.lineNo, winInfo, TRUE)))
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tuiUpdateSourceWindow (winInfo, sal.symtab, l, TRUE);
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else
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{
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l.lineNo = item->locator.lineNo;
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tuiSetIsExecPointAt (l, winInfo);
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}
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}
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else
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{
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if (winInfo == disassemWin)
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{
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TuiLineOrAddress a;
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a.addr = low;
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if (!tuiAddrIsDisplayed (item->locator.addr, winInfo, TRUE))
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tuiUpdateSourceWindow (winInfo, sal.symtab, a, TRUE);
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else
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{
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a.addr = item->locator.addr;
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tuiSetIsExecPointAt (a, winInfo);
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}
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}
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}
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tuiUpdateExecInfo (winInfo);
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}
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}
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else
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{
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tui_set_locator_info (NULL, NULL, 0, (CORE_ADDR) 0);
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tuiShowLocatorContent ();
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for (i = 0; i < (sourceWindows ())->count; i++)
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{
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winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
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tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT);
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tuiUpdateExecInfo (winInfo);
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}
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}
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}
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/* Function to initialize gdb commands, for tui window stack manipulation. */
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void
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_initialize_tuiStack (void)
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{
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add_com ("update", class_tui, tui_update_command,
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"Update the source window and locator to display the current "
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"execution point.\n");
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}
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/* Command to update the display with the current execution point. */
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static void
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tui_update_command (char *arg, int from_tty)
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{
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char cmd[sizeof("frame 0")];
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strcpy (cmd, "frame 0");
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execute_command (cmd, from_tty);
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}
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