]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blobdiff - gdb/tui/tui-source.c
Update years in copyright notice for the GDB files.
[thirdparty/binutils-gdb.git] / gdb / tui / tui-source.c
index 8d68c7e86fe4077b2dacc9a3f72d7c36f6e3ac5c..eb7879c268c6e8d38b1889746757ed051bdb6685 100644 (file)
@@ -1,7 +1,6 @@
 /* TUI display source window.
 
-   Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
-   Foundation, Inc.
+   Copyright (C) 1998-2013 Free Software Foundation, Inc.
 
    Contributed by Hewlett-Packard Company.
 
@@ -9,7 +8,7 @@
 
    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
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,9 +17,7 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include <ctype.h>
@@ -29,6 +26,8 @@
 #include "breakpoint.h"
 #include "source.h"
 #include "symtab.h"
+#include "objfiles.h"
+#include "filenames.h"
 
 #include "tui/tui.h"
 #include "tui/tui-data.h"
 #include "tui/tui-winsource.h"
 #include "tui/tui-source.h"
 
-#ifdef HAVE_NCURSES_H       
-#include <ncurses.h>
-#else
-#ifdef HAVE_CURSES_H
-#include <curses.h>
-#endif
-#endif
+#include "gdb_string.h"
+#include "gdb_curses.h"
 
 /* Function to display source in the source window.  */
 enum tui_status
-tui_set_source_content (struct symtab *s, int lineNo, int noerror)
+tui_set_source_content (struct symtab *s, 
+                       int line_no,
+                       int noerror)
 {
-  TuiStatus ret = TUI_FAILURE;
+  enum tui_status ret = TUI_FAILURE;
 
-  if (s != (struct symtab *) NULL && s->filename != (char *) NULL)
+  if (s != (struct symtab *) NULL)
     {
-      register FILE *stream;
-      register int i, desc, c, lineWidth, nlines;
-      register char *srcLine = 0;
+      FILE *stream;
+      int i, desc, c, line_width, nlines;
+      char *src_line = 0;
 
-      if ((ret = tui_alloc_source_buffer (srcWin)) == TUI_SUCCESS)
+      if ((ret = tui_alloc_source_buffer (TUI_SRC_WIN)) == TUI_SUCCESS)
        {
-         lineWidth = srcWin->generic.width - 1;
-         /* Take hilite (window border) into account, when calculating
-            the number of lines  */
-         nlines = (lineNo + (srcWin->generic.height - 2)) - lineNo;
+         line_width = TUI_SRC_WIN->generic.width - 1;
+         /* Take hilite (window border) into account, when
+            calculating the number of lines.  */
+         nlines = (line_no + (TUI_SRC_WIN->generic.height - 2)) - line_no;
          desc = open_source_file (s);
          if (desc < 0)
            {
              if (!noerror)
                {
                  char *name = alloca (strlen (s->filename) + 100);
-                 sprintf (name, "%s:%d", s->filename, lineNo);
+
+                 sprintf (name, "%s:%d", s->filename, line_no);
                  print_sys_errmsg (name, errno);
                }
              ret = TUI_FAILURE;
@@ -78,145 +75,164 @@ tui_set_source_content (struct symtab *s, int lineNo, int noerror)
              if (s->line_charpos == 0)
                find_source_lines (s, desc);
 
-             if (lineNo < 1 || lineNo > s->nlines)
+             if (line_no < 1 || line_no > s->nlines)
                {
                  close (desc);
                  printf_unfiltered (
                          "Line number %d out of range; %s has %d lines.\n",
-                                     lineNo, s->filename, s->nlines);
+                                     line_no, s->filename, s->nlines);
                }
-             else if (lseek (desc, s->line_charpos[lineNo - 1], 0) < 0)
+             else if (lseek (desc, s->line_charpos[line_no - 1], 0) < 0)
                {
                  close (desc);
                  perror_with_name (s->filename);
                }
              else
                {
-                 register int offset, curLineNo, curLine, curLen, threshold;
-                 struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
-                  struct tui_source_info * src = &srcWin->detail.sourceInfo;
+                 int offset, cur_line_no, cur_line, cur_len, threshold;
+                 struct tui_gen_win_info *locator
+                   = tui_locator_win_info_ptr ();
+                  struct tui_source_info *src
+                   = &TUI_SRC_WIN->detail.source_info;
 
-                  if (srcWin->generic.title)
-                    xfree (srcWin->generic.title);
-                  srcWin->generic.title = xstrdup (s->filename);
+                  if (TUI_SRC_WIN->generic.title)
+                    xfree (TUI_SRC_WIN->generic.title);
+                  TUI_SRC_WIN->generic.title = xstrdup (s->filename);
 
                   if (src->filename)
                     xfree (src->filename);
                   src->filename = xstrdup (s->filename);
 
-                 /* Determine the threshold for the length of the line
-                     and the offset to start the display.  */
-                 offset = src->horizontalOffset;
-                 threshold = (lineWidth - 1) + offset;
+                 /* Determine the threshold for the length of the
+                     line and the offset to start the display.  */
+                 offset = src->horizontal_offset;
+                 threshold = (line_width - 1) + offset;
                  stream = fdopen (desc, FOPEN_RT);
                  clearerr (stream);
-                 curLine = 0;
-                 curLineNo = src->startLineOrAddr.lineNo = lineNo;
+                 cur_line = 0;
+                 src->gdbarch = get_objfile_arch (s->objfile);
+                 src->start_line_or_addr.loa = LOA_LINE;
+                 cur_line_no = src->start_line_or_addr.u.line_no = line_no;
                  if (offset > 0)
-                   srcLine = (char *) xmalloc (
+                   src_line = (char *) xmalloc (
                                           (threshold + 1) * sizeof (char));
-                 while (curLine < nlines)
+                 while (cur_line < nlines)
                    {
-                     struct tui_win_element * element = (struct tui_win_element *)
-                     srcWin->generic.content[curLine];
+                     struct tui_win_element *element
+                       = (struct tui_win_element *)
+                       TUI_SRC_WIN->generic.content[cur_line];
 
-                     /* get the first character in the line */
+                     /* Get the first character in the line.  */
                      c = fgetc (stream);
 
                      if (offset == 0)
-                       srcLine = ((struct tui_win_element *)
-                                  srcWin->generic.content[
-                                       curLine])->whichElement.source.line;
-                     /* Init the line with the line number */
-                     sprintf (srcLine, "%-6d", curLineNo);
-                     curLen = strlen (srcLine);
-                     i = curLen -
-                       ((curLen / tui_default_tab_len ()) * tui_default_tab_len ());
+                       src_line = ((struct tui_win_element *)
+                                  TUI_SRC_WIN->generic.content[
+                                       cur_line])->which_element.source.line;
+                     /* Init the line with the line number */
+                     sprintf (src_line, "%-6d", cur_line_no);
+                     cur_len = strlen (src_line);
+                     i = cur_len - ((cur_len / tui_default_tab_len ())
+                                    * tui_default_tab_len ());
                      while (i < tui_default_tab_len ())
                        {
-                         srcLine[curLen] = ' ';
+                         src_line[cur_len] = ' ';
                          i++;
-                         curLen++;
+                         cur_len++;
                        }
-                     srcLine[curLen] = (char) 0;
-
-                     /* Set whether element is the execution point and
-                        whether there is a break point on it.  */
-                     element->whichElement.source.lineOrAddr.lineNo =
-                       curLineNo;
-                     element->whichElement.source.isExecPoint =
-                       (strcmp (((struct tui_win_element *)
-                       locator->content[0])->whichElement.locator.fileName,
-                                s->filename) == 0
-                        && curLineNo == ((struct tui_win_element *)
-                        locator->content[0])->whichElement.locator.lineNo);
+                     src_line[cur_len] = (char) 0;
+
+                     /* Set whether element is the execution point
+                        and whether there is a break point on it.  */
+                     element->which_element.source.line_or_addr.loa =
+                       LOA_LINE;
+                     element->which_element.source.line_or_addr.u.line_no =
+                       cur_line_no;
+                     element->which_element.source.is_exec_point =
+                       (filename_cmp (((struct tui_win_element *)
+                                      locator->content[0])->which_element.locator.file_name,
+                                      s->filename) == 0
+                        && cur_line_no == ((struct tui_win_element *)
+                                           locator->content[0])->which_element.locator.line_no);
                      if (c != EOF)
                        {
-                         i = strlen (srcLine) - 1;
+                         i = strlen (src_line) - 1;
                          do
                            {
-                             if ((c != '\n') &&
-                                 (c != '\r') && (++i < threshold))
+                             if ((c != '\n') && (c != '\r') 
+                                 && (++i < threshold))
                                {
                                  if (c < 040 && c != '\t')
                                    {
-                                     srcLine[i++] = '^';
-                                     srcLine[i] = c + 0100;
+                                     src_line[i++] = '^';
+                                     src_line[i] = c + 0100;
                                    }
                                  else if (c == 0177)
                                    {
-                                     srcLine[i++] = '^';
-                                     srcLine[i] = '?';
+                                     src_line[i++] = '^';
+                                     src_line[i] = '?';
                                    }
                                  else
-                                   {   /* Store the charcter in the line
-                                          buffer.  If it is a tab, then
-                                          translate to the correct number of
-                                          chars so we don't overwrite our
-                                          buffer.  */
+                                   { /* Store the charcter in the
+                                        line buffer.  If it is a tab,
+                                        then translate to the correct
+                                        number of chars so we don't
+                                        overwrite our buffer.  */
                                      if (c == '\t')
                                        {
-                                         int j, maxTabLen = tui_default_tab_len ();
+                                         int j, max_tab_len
+                                           = tui_default_tab_len ();
 
-                                         for (j = i - (
-                                              (i / maxTabLen) * maxTabLen);
-                                              ((j < maxTabLen) &&
-                                               i < threshold);
+                                         for (j = i - ((i / max_tab_len)
+                                                       * max_tab_len);
+                                              j < max_tab_len
+                                                && i < threshold;
                                               i++, j++)
-                                           srcLine[i] = ' ';
+                                           src_line[i] = ' ';
                                          i--;
                                        }
                                      else
-                                       srcLine[i] = c;
+                                       src_line[i] = c;
                                    }
-                                 srcLine[i + 1] = 0;
+                                 src_line[i + 1] = 0;
                                }
                              else
-                               {       /* If we have not reached EOL, then eat
-                                           chars until we do  */
+                               { /* If we have not reached EOL, then
+                                    eat chars until we do.  */
                                  while (c != EOF && c != '\n' && c != '\r')
                                    c = fgetc (stream);
+                                 /* Handle non-'\n' end-of-line.  */
+                                 if (c == '\r' 
+                                     && (c = fgetc (stream)) != '\n' 
+                                     && c != EOF)
+                                   {
+                                      ungetc (c, stream);
+                                      c = '\r';
+                                   }
+                                 
                                }
                            }
-                         while (c != EOF && c != '\n' && c != '\r' &&
-                                i < threshold && (c = fgetc (stream)));
+                         while (c != EOF && c != '\n' && c != '\r' 
+                                && i < threshold 
+                                && (c = fgetc (stream)));
                        }
-                     /* Now copy the line taking the offset into account */
-                     if (strlen (srcLine) > offset)
-                       strcpy (((struct tui_win_element *) srcWin->generic.content[
-                                       curLine])->whichElement.source.line,
-                               &srcLine[offset]);
+                     /* Now copy the line taking the offset into
+                        account.  */
+                     if (strlen (src_line) > offset)
+                       strcpy (((struct tui_win_element *)
+                                TUI_SRC_WIN->generic.content[cur_line])->which_element.source.line,
+                               &src_line[offset]);
                      else
                        ((struct tui_win_element *)
-                        srcWin->generic.content[
-                         curLine])->whichElement.source.line[0] = (char) 0;
-                     curLine++;
-                     curLineNo++;
+                        TUI_SRC_WIN->generic.content[
+                         cur_line])->which_element.source.line[0] = (char) 0;
+                     cur_line++;
+                     cur_line_no++;
                    }
                  if (offset > 0)
-                   tuiFree (srcLine);
+                   xfree (src_line);
                  fclose (stream);
-                 srcWin->generic.contentSize = nlines;
+                 TUI_SRC_WIN->generic.content_size = nlines;
                  ret = TUI_SUCCESS;
                }
            }
@@ -226,68 +242,72 @@ tui_set_source_content (struct symtab *s, int lineNo, int noerror)
 }
 
 
-/* elz: this function sets the contents of the source window to empty
+/* elz: This function sets the contents of the source window to empty
    except for a line in the middle with a warning message about the
-   source not being available. This function is called by
-   tuiEraseSourceContents, which in turn is invoked when the source
-   files cannot be accessed.  */
+   source not being available.  This function is called by
+   tui_erase_source_contents(), which in turn is invoked when the
+   source files cannot be accessed.  */
 
 void
-tui_set_source_content_nil (struct tui_win_info * winInfo, char *warning_string)
+tui_set_source_content_nil (struct tui_win_info *win_info, 
+                           char *warning_string)
 {
-  int lineWidth;
-  int nLines;
+  int line_width;
+  int n_lines;
   int curr_line = 0;
 
-  lineWidth = winInfo->generic.width - 1;
-  nLines = winInfo->generic.height - 2;
+  line_width = win_info->generic.width - 1;
+  n_lines = win_info->generic.height - 2;
 
-  /* set to empty each line in the window, except for the one
-     which contains the message */
-  while (curr_line < winInfo->generic.contentSize)
+  /* Set to empty each line in the window, except for the one which
+     contains the message.  */
+  while (curr_line < win_info->generic.content_size)
     {
-      /* set the information related to each displayed line
-         to null: i.e. the line number is 0, there is no bp,
-         it is not where the program is stopped */
-
-      struct tui_win_element * element =
-      (struct tui_win_element *) winInfo->generic.content[curr_line];
-      element->whichElement.source.lineOrAddr.lineNo = 0;
-      element->whichElement.source.isExecPoint = FALSE;
-      element->whichElement.source.hasBreak = FALSE;
-
-      /* set the contents of the line to blank */
-      element->whichElement.source.line[0] = (char) 0;
-
-      /* if the current line is in the middle of the screen, then we want to
-         display the 'no source available' message in it.
-         Note: the 'weird' arithmetic with the line width and height comes from
-         the function tuiEraseSourceContent. We need to keep the screen and the
-         window's actual contents in synch */
-
-      if (curr_line == (nLines / 2 + 1))
+      /* Set the information related to each displayed line to null:
+         i.e. the line number is 0, there is no bp, it is not where
+         the program is stopped.  */
+
+      struct tui_win_element *element =
+       (struct tui_win_element *) win_info->generic.content[curr_line];
+
+      element->which_element.source.line_or_addr.loa = LOA_LINE;
+      element->which_element.source.line_or_addr.u.line_no = 0;
+      element->which_element.source.is_exec_point = FALSE;
+      element->which_element.source.has_break = FALSE;
+
+      /* Set the contents of the line to blank.  */
+      element->which_element.source.line[0] = (char) 0;
+
+      /* If the current line is in the middle of the screen, then we
+         want to display the 'no source available' message in it.
+         Note: the 'weird' arithmetic with the line width and height
+         comes from the function tui_erase_source_content().  We need
+         to keep the screen and the window's actual contents in
+         synch.  */
+
+      if (curr_line == (n_lines / 2 + 1))
        {
          int i;
          int xpos;
          int warning_length = strlen (warning_string);
-         char *srcLine;
+         char *src_line;
 
-         srcLine = element->whichElement.source.line;
+         src_line = element->which_element.source.line;
 
-         if (warning_length >= ((lineWidth - 1) / 2))
+         if (warning_length >= ((line_width - 1) / 2))
            xpos = 1;
          else
-           xpos = (lineWidth - 1) / 2 - warning_length;
+           xpos = (line_width - 1) / 2 - warning_length;
 
          for (i = 0; i < xpos; i++)
-           srcLine[i] = ' ';
+           src_line[i] = ' ';
 
-         sprintf (srcLine + i, "%s", warning_string);
+         sprintf (src_line + i, "%s", warning_string);
 
-         for (i = xpos + warning_length; i < lineWidth; i++)
-           srcLine[i] = ' ';
+         for (i = xpos + warning_length; i < line_width; i++)
+           src_line[i] = ' ';
 
-         srcLine[i] = '\n';
+         src_line[i] = '\n';
 
        }                       /* end if */
 
@@ -300,10 +320,12 @@ tui_set_source_content_nil (struct tui_win_info * winInfo, char *warning_string)
 /* Function to display source in the source window.  This function
    initializes the horizontal scroll to 0.  */
 void
-tui_show_symtab_source (struct symtab *s, union tui_line_or_address line, int noerror)
+tui_show_symtab_source (struct gdbarch *gdbarch, struct symtab *s,
+                       struct tui_line_or_address line, 
+                       int noerror)
 {
-  srcWin->detail.sourceInfo.horizontalOffset = 0;
-  tui_update_source_window_as_is (srcWin, s, line, noerror);
+  TUI_SRC_WIN->detail.source_info.horizontal_offset = 0;
+  tui_update_source_window_as_is (TUI_SRC_WIN, gdbarch, s, line, noerror);
 }
 
 
@@ -312,46 +334,51 @@ tui_show_symtab_source (struct symtab *s, union tui_line_or_address line, int no
 int
 tui_source_is_displayed (char *fname)
 {
-  return (srcWin->generic.contentInUse &&
-         (strcmp (((struct tui_win_element *) (tui_locator_win_info_ptr ())->
-                 content[0])->whichElement.locator.fileName, fname) == 0));
+  return (TUI_SRC_WIN != NULL
+         && TUI_SRC_WIN->generic.content_in_use 
+         && (filename_cmp (((struct tui_win_element *)
+                            (tui_locator_win_info_ptr ())->
+                            content[0])->which_element.locator.file_name,
+                           fname) == 0));
 }
 
 
 /* Scroll the source forward or backward vertically.  */
 void
-tui_vertical_source_scroll (enum tui_scroll_direction scrollDirection,
-                           int numToScroll)
+tui_vertical_source_scroll (enum tui_scroll_direction scroll_direction,
+                           int num_to_scroll)
 {
-  if (srcWin->generic.content != (OpaquePtr) NULL)
+  if (TUI_SRC_WIN->generic.content != NULL)
     {
-      union tui_line_or_address l;
+      struct tui_line_or_address l;
       struct symtab *s;
-      tui_win_content content = (tui_win_content) srcWin->generic.content;
+      tui_win_content content = (tui_win_content) TUI_SRC_WIN->generic.content;
       struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 
       if (cursal.symtab == (struct symtab *) NULL)
-       s = find_pc_symtab (get_frame_pc (deprecated_selected_frame));
+       s = find_pc_symtab (get_frame_pc (get_selected_frame (NULL)));
       else
        s = cursal.symtab;
 
-      if (scrollDirection == FORWARD_SCROLL)
+      l.loa = LOA_LINE;
+      if (scroll_direction == FORWARD_SCROLL)
        {
-         l.lineNo = content[0]->whichElement.source.lineOrAddr.lineNo +
-           numToScroll;
-         if (l.lineNo > s->nlines)
-           /*line = s->nlines - winInfo->generic.contentSize + 1; */
-           /*elz: fix for dts 23398 */
-           l.lineNo = content[0]->whichElement.source.lineOrAddr.lineNo;
+         l.u.line_no = content[0]->which_element.source.line_or_addr.u.line_no
+           + num_to_scroll;
+         if (l.u.line_no > s->nlines)
+           /* line = s->nlines - win_info->generic.content_size + 1; */
+           /* elz: fix for dts 23398.  */
+           l.u.line_no
+             = content[0]->which_element.source.line_or_addr.u.line_no;
        }
       else
        {
-         l.lineNo = content[0]->whichElement.source.lineOrAddr.lineNo -
-           numToScroll;
-         if (l.lineNo <= 0)
-           l.lineNo = 1;
+         l.u.line_no = content[0]->which_element.source.line_or_addr.u.line_no
+           - num_to_scroll;
+         if (l.u.line_no <= 0)
+           l.u.line_no = 1;
        }
 
-      print_source_lines (s, l.lineNo, l.lineNo + 1, 0);
+      print_source_lines (s, l.u.line_no, l.u.line_no + 1, 0);
     }
 }