/* List lines of source files for GDB, the GNU debugger.
- Copyright 1986-1989, 1991-1999 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
+ 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "annotate.h"
#include "gdbtypes.h"
#include "linespec.h"
+#include "filenames.h" /* for DOSish file names */
#include "completer.h"
-#ifdef UI_OUT
#include "ui-out.h"
-#endif
#ifdef CRLF_SOURCE_FILES
/* Make the default place to list be the function `main'
if one exists. */
- if (lookup_symbol ("main", 0, VAR_NAMESPACE, 0, NULL))
+ if (lookup_symbol (main_name (), 0, VAR_NAMESPACE, 0, NULL))
{
- sals = decode_line_spec ("main", 1);
+ sals = decode_line_spec (main_name (), 1);
sal = sals.sals[0];
xfree (sals.sals);
current_source_symtab = sal.symtab;
{
if (cs_pst->readin)
{
- internal_error ("select_source_symtab: readin pst found and no symtabs.");
+ internal_error (__FILE__, __LINE__,
+ "select_source_symtab: "
+ "readin pst found and no symtabs.");
}
else
{
{
register struct symtab *s;
register struct objfile *objfile;
+ struct partial_symtab *pst;
for (objfile = object_files; objfile != NULL; objfile = objfile->next)
{
{
if (s->line_charpos != NULL)
{
- mfree (objfile->md, s->line_charpos);
+ xmfree (objfile->md, s->line_charpos);
s->line_charpos = NULL;
}
if (s->fullname != NULL)
{
- mfree (objfile->md, s->fullname);
+ xmfree (objfile->md, s->fullname);
s->fullname = NULL;
}
}
+
+ ALL_OBJFILE_PSYMTABS (objfile, pst)
+ {
+ if (pst->fullname != NULL)
+ {
+ xfree (pst->fullname);
+ pst->fullname = NULL;
+ }
+ }
}
}
char buf[20];
sprintf (buf, "$cdir%c$cwd", DIRNAME_SEPARATOR);
- source_path = strsave (buf);
+ source_path = xstrdup (buf);
forget_cached_source_info ();
}
if (dirname == 0)
return;
- dirname = strsave (dirname);
+ dirname = xstrdup (dirname);
make_cleanup (xfree, dirname);
do
}
}
- if (!(SLASH_P (*name) && p <= name + 1) /* "/" */
-#if defined(_WIN32) || defined(__MSDOS__)
+ if (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
/* On MS-DOS and MS-Windows, h:\ is different from h: */
- && !(!SLASH_P (*name) && ROOTED_P (name) && p <= name + 3) /* d:/ */
+ && !(p == name + 3 && name[1] == ':') /* "d:/" */
#endif
- && SLASH_P (p[-1]))
+ && IS_DIR_SEPARATOR (p[-1]))
/* Sigh. "foo/" => "foo" */
--p;
*p = '\0';
name = current_directory;
goto append;
}
- else if (p > name + 1 && SLASH_P (p[-2]))
+ else if (p > name + 1 && IS_DIR_SEPARATOR (p[-2]))
{
if (p - name == 2)
{
if (name[0] == '~')
name = tilde_expand (name);
-#if defined(_WIN32) || defined(__MSDOS__)
- else if (ROOTED_P (name) && p == name + 2) /* "d:" => "d:." */
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ else if (IS_ABSOLUTE_PATH (name) && p == name + 2) /* "d:" => "d:." */
name = concat (name, ".", NULL);
#endif
- else if (!ROOTED_P (name) && name[0] != '$')
+ else if (!IS_ABSOLUTE_PATH (name) && name[0] != '$')
name = concat (current_directory, SLASH_STRING, name, NULL);
else
name = savestring (name, p - name);
printf_filtered ("Source language is %s.\n", language_str (s->language));
printf_filtered ("Compiled with %s debugging format.\n", s->debugformat);
+ printf_filtered ("%s preprocessor macro info.\n",
+ s->macro_table ? "Includes" : "Does not include");
}
\f
+/* Return True if the file NAME exists and is a regular file */
+static int
+is_regular_file (const char *name)
+{
+ struct stat st;
+ const int status = stat (name, &st);
+
+ /* Stat should never fail except when the file does not exist.
+ If stat fails, analyze the source of error and return True
+ unless the file does not exist, to avoid returning false results
+ on obscure systems where stat does not work as expected.
+ */
+ if (status != 0)
+ return (errno != ENOENT);
+
+ return S_ISREG (st.st_mode);
+}
/* Open a file named STRING, searching path PATH (dir names sep by some char)
using mode MODE and protection bits PROT in the calls to open.
so that "exec-file ./foo" or "symbol-file ./foo" insures that you
get that particular version of foo or an error message).
- If FILENAMED_OPENED is non-null, set it to a newly allocated string naming
- the actual file opened (this string will always start with a "/". We
+ If FILENAME_OPENED is non-null, set it to a newly allocated string naming
+ the actual file opened (this string will always start with a "/"). We
have to take special pains to avoid doubling the "/" between the directory
and the file, sigh! Emacs gets confuzzed by this when we print the
source file name!!!
Otherwise, return -1, with errno set for the last name we tried to open. */
/* >>>> This should only allow files of certain types,
- >>>> eg executable, non-directory */
+ >>>> eg executable, non-directory */
int
-openp (char *path, int try_cwd_first, char *string, int mode, int prot,
+openp (const char *path, int try_cwd_first, const char *string,
+ int mode, int prot,
char **filename_opened)
{
register int fd;
register char *filename;
- register char *p, *p1;
+ const char *p;
+ const char *p1;
register int len;
int alloclen;
if (!path)
path = ".";
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__CYGWIN__)
mode |= O_BINARY;
#endif
- if (try_cwd_first || ROOTED_P (string))
+ if ((try_cwd_first || IS_ABSOLUTE_PATH (string)) && is_regular_file (string))
{
int i;
- filename = string;
+ filename = alloca (strlen (string) + 1);
+ strcpy (filename, string);
fd = open (filename, mode, prot);
if (fd >= 0)
goto done;
for (i = 0; string[i]; i++)
- if (SLASH_P (string[i]))
+ if (IS_DIR_SEPARATOR (string[i]))
goto done;
}
/* ./foo => foo */
- while (string[0] == '.' && SLASH_P (string[1]))
+ while (string[0] == '.' && IS_DIR_SEPARATOR (string[1]))
string += 2;
alloclen = strlen (path) + strlen (string) + 2;
- filename = (char *) alloca (alloclen);
+ filename = alloca (alloclen);
fd = -1;
for (p = path; p; p = p1 ? p1 + 1 : 0)
{
- p1 = (char *) strchr (p, DIRNAME_SEPARATOR);
+ p1 = strchr (p, DIRNAME_SEPARATOR);
if (p1)
len = p1 - p;
else
if (newlen > alloclen)
{
alloclen = newlen;
- filename = (char *) alloca (alloclen);
+ filename = alloca (alloclen);
}
strcpy (filename, current_directory);
}
}
/* Remove trailing slashes */
- while (len > 0 && SLASH_P (filename[len - 1]))
+ while (len > 0 && IS_DIR_SEPARATOR (filename[len - 1]))
filename[--len] = 0;
strcat (filename + len, SLASH_STRING);
strcat (filename, string);
- fd = open (filename, mode);
- if (fd >= 0)
- break;
+ if (is_regular_file (filename))
+ {
+ fd = open (filename, mode);
+ if (fd >= 0)
+ break;
+ }
}
done:
if (filename_opened)
{
+ /* If a file was opened, canonicalize its filename. Use xfullpath
+ rather than gdb_realpath to avoid resolving the basename part
+ of filenames when the associated file is a symbolic link. This
+ fixes a potential inconsistency between the filenames known to
+ GDB and the filenames it prints in the annotations. */
if (fd < 0)
- *filename_opened = (char *) 0;
- else if (ROOTED_P (filename))
- *filename_opened = savestring (filename, strlen (filename));
+ *filename_opened = NULL;
+ else if (IS_ABSOLUTE_PATH (filename))
+ *filename_opened = xfullpath (filename);
else
{
/* Beware the // my son, the Emacs barfs, the botch that catch... */
- *filename_opened = concat (current_directory,
- SLASH_P (current_directory[strlen (current_directory) - 1])
+ char *f = concat (current_directory,
+ IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])
? "" : SLASH_STRING,
filename, NULL);
+ *filename_opened = xfullpath (f);
+ xfree (f);
}
}
-#ifdef MPW
- /* This is a debugging hack that can go away when all combinations
- of Mac and Unix names are handled reasonably. */
- {
- extern int debug_openp;
-
- if (debug_openp)
- {
- printf ("openp on %s, path %s mode %d prot %d\n returned %d",
- string, path, mode, prot, fd);
- if (*filename_opened)
- printf (" (filename is %s)", *filename_opened);
- printf ("\n");
- }
- }
-#endif /* MPW */
return fd;
}
open_source_file (struct symtab *s)
{
char *path = source_path;
- char *p;
+ const char *p;
int result;
char *fullname;
if (result >= 0)
return result;
/* Didn't work -- free old one, try again. */
- mfree (s->objfile->md, s->fullname);
+ xmfree (s->objfile->md, s->fullname);
s->fullname = NULL;
}
if (result < 0)
{
/* Didn't work. Try using just the basename. */
- p = basename (s->filename);
- if (p != s->filename)
- result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
- }
-#ifdef MPW
- if (result < 0)
- {
- /* Didn't work. Try using just the MPW basename. */
- p = (char *) mpw_basename (s->filename);
- if (p != s->filename)
- result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
- }
- if (result < 0)
- {
- /* Didn't work. Try using the mixed Unix/MPW basename. */
- p = (char *) mpw_mixed_basename (s->filename);
+ p = lbasename (s->filename);
if (p != s->filename)
result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
}
-#endif /* MPW */
if (result >= 0)
{
if (mtime && mtime < st.st_mtime)
{
- if (tui_version)
- printf_filtered ("\n");
warning ("Source file is more recent than executable.\n");
}
current_source_line = line;
first_line_listed = line;
-#ifdef UI_OUT
/* If printing of source lines is disabled, just print file and line number */
if (ui_out_test_flags (uiout, ui_source_list))
{
-#endif
/* Only prints "No such file or directory" once */
if ((s != last_source_visited) || (!last_source_error))
{
desc = last_source_error;
noerror = 1;
}
-#ifdef UI_OUT
}
else
{
desc = -1;
noerror = 1;
}
-#endif
if (desc < 0)
{
print_sys_errmsg (name, errno);
}
else
-#ifdef UI_OUT
ui_out_field_int (uiout, "line", line);
ui_out_text (uiout, "\tin ");
ui_out_field_string (uiout, "file", s->filename);
ui_out_text (uiout, "\n");
-#else
- printf_filtered ("%d\tin %s\n", line, s->filename);
-#endif
return;
}
while (nlines-- > 0)
{
-#ifdef UI_OUT
char buf[20];
c = fgetc (stream);
}
}
while (c != '\n' && (c = fgetc (stream)) >= 0);
-#else
- c = fgetc (stream);
- if (c == EOF)
- break;
- last_line_listed = current_source_line;
- printf_filtered ("%d\t", current_source_line++);
- do
- {
- if (c < 040 && c != '\t' && c != '\n' && c != '\r')
- printf_filtered ("^%c", c + 0100);
- else if (c == 0177)
- printf_filtered ("^?");
-#ifdef CRLF_SOURCE_FILES
- else if (c == '\r')
- {
- /* Just skip \r characters. */
- }
-#endif
- else
- printf_filtered ("%c", c);
- }
- while (c != '\n' && (c = fgetc (stream)) >= 0);
-#endif
}
fclose (stream);
void
print_source_lines (struct symtab *s, int line, int stopline, int noerror)
{
-#if defined(TUI)
- if (!tui_version ||
- m_winPtrIsNull (srcWin) || !srcWin->generic.isVisible)
- print_source_lines_base (s, line, stopline, noerror);
- else
- {
- TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
-extern void tui_vAddWinToLayout (va_list);
-extern void tui_vUpdateSourceWindowsWithLine (va_list);
-
- /* Regardless of whether we can open the file,
- set current_source_symtab. */
- current_source_symtab = s;
- current_source_line = line;
- first_line_listed = line;
-
- /* make sure that the source window is displayed */
- tuiDo ((TuiOpaqueFuncPtr) tui_vAddWinToLayout, SRC_WIN);
-
- tuiDo ((TuiOpaqueFuncPtr) tui_vUpdateSourceWindowsWithLine, s, line);
- tuiDo ((TuiOpaqueFuncPtr) tui_vUpdateLocatorFilename, s->filename);
- }
-#else
print_source_lines_base (s, line, stopline, noerror);
-#endif
}
\f
int line;
char *msg;
-#if defined(TUI)
- /*
- ** If this is the TUI, search from the first line displayed in
- ** the source window, otherwise, search from last_line_listed+1
- ** in current_source_symtab
- */
- if (!tui_version)
- line = last_line_listed;
- else
- {
- if (srcWin->generic.isVisible && srcWin->generic.contentSize > 0)
- line = ((TuiWinContent)
- srcWin->generic.content)[0]->whichElement.source.lineOrAddr.lineNo;
- else
- {
- printf_filtered ("No source displayed.\nExpression not found.\n");
- return;
- }
- }
- line++;
-#else
line = last_line_listed + 1;
-#endif
msg = (char *) re_comp (regex);
if (msg)
{
/* Match! */
fclose (stream);
- if (tui_version)
- print_source_lines_base (current_source_symtab, line, line + 1, 0);
print_source_lines (current_source_symtab, line, line + 1, 0);
set_internalvar (lookup_internalvar ("_"),
value_from_longest (builtin_type_int,
register FILE *stream;
int line;
char *msg;
-#if defined(TUI)
- /*
- ** If this is the TUI, search from the first line displayed in
- ** the source window, otherwise, search from last_line_listed-1
- ** in current_source_symtab
- */
- if (!tui_version)
- line = last_line_listed;
- else
- {
- if (srcWin->generic.isVisible && srcWin->generic.contentSize > 0)
- line = ((TuiWinContent)
- srcWin->generic.content)[0]->whichElement.source.lineOrAddr.lineNo;
- else
- {
- printf_filtered ("No source displayed.\nExpression not found.\n");
- return;
- }
- }
- line--;
-#else
+
line = last_line_listed - 1;
-#endif
msg = (char *) re_comp (regex);
if (msg)
{
/* Match! */
fclose (stream);
- if (tui_version)
- print_source_lines_base (current_source_symtab, line, line + 1, 0);
print_source_lines (current_source_symtab, line, line + 1, 0);
set_internalvar (lookup_internalvar ("_"),
value_from_longest (builtin_type_int,
if (dbx_commands)
add_com_alias ("use", "directory", class_files, 0);
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
add_cmd ("directories", no_class, show_directories,
"Current search path for finding source files.\n\