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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/tui/tuiSource.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'gdb/tui/tuiSource.c')
-rw-r--r--gdb/tui/tuiSource.c465
1 files changed, 0 insertions, 465 deletions
diff --git a/gdb/tui/tuiSource.c b/gdb/tui/tuiSource.c
deleted file mode 100644
index e0259d0..0000000
--- a/gdb/tui/tuiSource.c
+++ /dev/null
@@ -1,465 +0,0 @@
-/*
-** tuiSource.c
-** This module contains functions for displaying source in the source window
-*/
-
-#include "defs.h"
-#include <ctype.h>
-#include "symtab.h"
-#include "frame.h"
-#include "breakpoint.h"
-
-#include "tui.h"
-#include "tuiData.h"
-#include "tuiStack.h"
-#include "tuiSourceWin.h"
-#include "tuiSource.h"
-
-
-/*****************************************
-** EXTERNAL FUNCTION DECLS **
-******************************************/
-
-extern int open_source_file PARAMS ((struct symtab *));
-extern void find_source_lines PARAMS ((struct symtab *, int));
-
-/*****************************************
-** EXTERNAL DATA DECLS **
-******************************************/
-extern int current_source_line;
-extern struct symtab *current_source_symtab;
-
-
-/*****************************************
-** STATIC LOCAL FUNCTIONS FORWARD DECLS **
-******************************************/
-
-static struct breakpoint *_hasBreak PARAMS ((char *, int));
-
-
-/*****************************************
-** STATIC LOCAL DATA **
-******************************************/
-
-
-/*****************************************
-** PUBLIC FUNCTIONS **
-******************************************/
-
-/*********************************
-** SOURCE/DISASSEM FUNCTIONS **
-*********************************/
-
-/*
-** tuiSetSourceContent().
-** Function to display source in the source window.
-*/
-TuiStatus
-#ifdef __STDC__
-tuiSetSourceContent (
- struct symtab *s,
- int lineNo,
- int noerror)
-#else
-tuiSetSourceContent (s, lineNo, noerror)
- struct symtab *s;
- int lineNo;
- int noerror;
-#endif
-{
- TuiStatus ret = TUI_FAILURE;
-
- if (s != (struct symtab *) NULL && s->filename != (char *) NULL)
- {
- register FILE *stream;
- register int i, desc, c, lineWidth, nlines;
- register char *srcLine;
-
- if ((ret = tuiAllocSourceBuffer (srcWin)) == 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;
- desc = open_source_file (s);
- if (desc < 0)
- {
- if (!noerror)
- {
- char *name = alloca (strlen (s->filename) + 100);
- sprintf (name, "%s:%d", s->filename, lineNo);
- print_sys_errmsg (name, errno);
- }
- ret = TUI_FAILURE;
- }
- else
- {
- if (s->line_charpos == 0)
- find_source_lines (s, desc);
-
- if (lineNo < 1 || lineNo > s->nlines)
- {
- close (desc);
- printf_unfiltered (
- "Line number %d out of range; %s has %d lines.\n",
- lineNo, s->filename, s->nlines);
- }
- else if (lseek (desc, s->line_charpos[lineNo - 1], 0) < 0)
- {
- close (desc);
- perror_with_name (s->filename);
- }
- else
- {
- register int offset, curLineNo, curLine, curLen, threshold;
- TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
- /*
- ** Determine the threshold for the length of the line
- ** and the offset to start the display
- */
- offset = srcWin->detail.sourceInfo.horizontalOffset;
- threshold = (lineWidth - 1) + offset;
- stream = fdopen (desc, FOPEN_RT);
- clearerr (stream);
- curLine = 0;
- curLineNo =
- srcWin->detail.sourceInfo.startLineOrAddr.lineNo = lineNo;
- if (offset > 0)
- srcLine = (char *) xmalloc (
- (threshold + 1) * sizeof (char));
- while (curLine < nlines)
- {
- TuiWinElementPtr element = (TuiWinElementPtr)
- srcWin->generic.content[curLine];
- struct breakpoint *bp;
-
- /* get the first character in the line */
- c = fgetc (stream);
-
- if (offset == 0)
- srcLine = ((TuiWinElementPtr)
- srcWin->generic.content[
- curLine])->whichElement.source.line;
- /* Init the line with the line number */
- sprintf (srcLine, "%-6d", curLineNo);
- curLen = strlen (srcLine);
- i = curLen -
- ((curLen / tuiDefaultTabLen ()) * tuiDefaultTabLen ());
- while (i < tuiDefaultTabLen ())
- {
- srcLine[curLen] = ' ';
- i++;
- curLen++;
- }
- 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 (((TuiWinElementPtr)
- locator->content[0])->whichElement.locator.fileName,
- s->filename) == 0
- && curLineNo == ((TuiWinElementPtr)
- locator->content[0])->whichElement.locator.lineNo);
- bp = _hasBreak (s->filename, curLineNo);
- element->whichElement.source.hasBreak =
- (bp != (struct breakpoint *) NULL &&
- (!element->whichElement.source.isExecPoint ||
- (bp->disposition != del || bp->hit_count <= 0)));
- if (c != EOF)
- {
- i = strlen (srcLine) - 1;
- do
- {
- if ((c != '\n') &&
- (c != '\r') && (++i < threshold))
- {
- if (c < 040 && c != '\t')
- {
- srcLine[i++] = '^';
- srcLine[i] = c + 0100;
- }
- else if (c == 0177)
- {
- srcLine[i++] = '^';
- srcLine[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.
- */
- if (c == '\t')
- {
- int j, maxTabLen = tuiDefaultTabLen ();
-
- for (j = i - (
- (i / maxTabLen) * maxTabLen);
- ((j < maxTabLen) &&
- i < threshold);
- i++, j++)
- srcLine[i] = ' ';
- i--;
- }
- else
- srcLine[i] = c;
- }
- srcLine[i + 1] = 0;
- }
- else
- { /*
- ** if we have not reached EOL, then eat
- ** chars until we do
- */
- while (c != EOF && c != '\n' && c != '\r')
- 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 (((TuiWinElementPtr) srcWin->generic.content[
- curLine])->whichElement.source.line,
- &srcLine[offset]);
- else
- ((TuiWinElementPtr)
- srcWin->generic.content[
- curLine])->whichElement.source.line[0] = (char) 0;
- curLine++;
- curLineNo++;
- }
- if (offset > 0)
- tuiFree (srcLine);
- fclose (stream);
- srcWin->generic.contentSize = nlines;
- ret = TUI_SUCCESS;
- }
- }
- }
- }
- return ret;
-} /* tuiSetSourceContent */
-
-
-/* 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*/
-
-void
-#ifdef __STDC__
-tuiSetSourceContentNil (
- TuiWinInfoPtr winInfo,
- char *warning_string)
-#else
-tuiSetSourceContentNil (winInfo, warning_string)
- TuiWinInfoPtr winInfo;
- char *warning_string;
-#endif
-{
- int lineWidth;
- int nLines;
- int curr_line = 0;
-
- lineWidth = winInfo->generic.width - 1;
- nLines = winInfo->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 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 */
-
- TuiWinElementPtr element =
- (TuiWinElementPtr) 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))
- {
- int i;
- int xpos;
- int warning_length = strlen (warning_string);
- char *srcLine;
-
- srcLine = element->whichElement.source.line;
-
- if (warning_length >= ((lineWidth - 1) / 2))
- xpos = 1;
- else
- xpos = (lineWidth - 1) / 2 - warning_length;
-
- for (i = 0; i < xpos; i++)
- srcLine[i] = ' ';
-
- sprintf (srcLine + i, "%s", warning_string);
-
- for (i = xpos + warning_length; i < lineWidth; i++)
- srcLine[i] = ' ';
-
- srcLine[i] = '\n';
-
- } /* end if */
-
- curr_line++;
-
- } /* end while*/
-
-} /*tuiSetSourceContentNil*/
-
-
-
-
-/*
-** tuiShowSource().
-** Function to display source in the source window. This function
-** initializes the horizontal scroll to 0.
-*/
-void
-#ifdef __STDC__
-tuiShowSource (
- struct symtab *s,
- Opaque line,
- int noerror)
-#else
-tuiShowSource (s, line, noerror)
- struct symtab *s;
- Opaque line;
- int noerror;
-#endif
-{
- srcWin->detail.sourceInfo.horizontalOffset = 0;
- m_tuiShowSourceAsIs (s, line, noerror);
-
- return;
-} /* tuiShowSource */
-
-
-/*
-** tuiSourceIsDisplayed().
-** Answer whether the source is currently displayed in the source window.
-*/
-int
-#ifdef __STDC__
-tuiSourceIsDisplayed (
- char *fname)
-#else
-tuiSourceIsDisplayed (fname)
- char *fname;
-#endif
-{
- return (srcWin->generic.contentInUse &&
- (strcmp (((TuiWinElementPtr) (locatorWinInfoPtr ())->
- content[0])->whichElement.locator.fileName, fname) == 0));
-} /* tuiSourceIsDisplayed */
-
-
-/*
-** tuiVerticalSourceScroll().
-** Scroll the source forward or backward vertically
-*/
-void
-#ifdef __STDC__
-tuiVerticalSourceScroll (
- TuiScrollDirection scrollDirection,
- int numToScroll)
-#else
-tuiVerticalSourceScroll (scrollDirection, numToScroll)
- TuiScrollDirection scrollDirection;
- int numToScroll;
-#endif
-{
- if (srcWin->generic.content != (OpaquePtr) NULL)
- {
- int line;
- Opaque addr;
- struct symtab *s;
- TuiWinContent content = (TuiWinContent) srcWin->generic.content;
-
- if (current_source_symtab == (struct symtab *) NULL)
- s = find_pc_symtab (selected_frame->pc);
- else
- s = current_source_symtab;
-
- if (scrollDirection == FORWARD_SCROLL)
- {
- line = content[0]->whichElement.source.lineOrAddr.lineNo +
- numToScroll;
- if (line > s->nlines)
- /*line = s->nlines - winInfo->generic.contentSize + 1;*/
- /*elz: fix for dts 23398*/
- line = content[0]->whichElement.source.lineOrAddr.lineNo;
- }
- else
- {
- line = content[0]->whichElement.source.lineOrAddr.lineNo -
- numToScroll;
- if (line <= 0)
- line = 1;
- }
- tuiUpdateSourceWindowAsIs (srcWin, s, (Opaque) line, FALSE);
- }
-
- return;
-} /* tuiVerticalSourceScroll */
-
-
-/*****************************************
-** STATIC LOCAL FUNCTIONS **
-******************************************/
-
-/*
-** _hasBreak().
-** Answer whether there is a break point at the input line in
-** the source file indicated
-*/
-static struct breakpoint *
-#ifdef __STDC__
-_hasBreak (
- char *sourceFileName,
- int lineNo)
-#else
-_hasBreak (sourceFileName, lineNo)
- char *sourceFileName;
- int lineNo;
-#endif
-{
- struct breakpoint *bpWithBreak = (struct breakpoint *) NULL;
- struct breakpoint *bp;
- extern struct breakpoint *breakpoint_chain;
-
-
- for (bp = breakpoint_chain;
- (bp != (struct breakpoint *) NULL &&
- bpWithBreak == (struct breakpoint *) NULL);
- bp = bp->next)
- if ((strcmp (sourceFileName, bp->source_file) == 0) &&
- (lineNo == bp->line_number))
- bpWithBreak = bp;
-
- return bpWithBreak;
-} /* _hasBreak */