X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fsource.c;h=ae94addb6135f99e240cb197d12be94582f567eb;hb=430329a943352cb440b1075a1b753483985f74bf;hp=d2e47fee8ad0107ca0ede05c531be29d89fad01b;hpb=c214a6fd4d4e7d6d8bfd1dc355442070a63ca61a;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/source.c b/gdb/source.c
index d2e47fee8a..ae94addb61 100644
--- a/gdb/source.c
+++ b/gdb/source.c
@@ -1,6 +1,6 @@
 /* List lines of source files for GDB, the GNU debugger.
    Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
-   1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+   1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -44,6 +44,7 @@
 #include "filenames.h"		/* for DOSish file names */
 #include "completer.h"
 #include "ui-out.h"
+#include <readline/readline.h>
 
 #ifdef CRLF_SOURCE_FILES
 
@@ -152,21 +153,22 @@ get_current_source_symtab_and_line (void)
 
   cursal.symtab = current_source_symtab;
   cursal.line = current_source_line;
+  cursal.pc = 0;
+  cursal.end = 0;
   
   return cursal;
 }
 
-/* Return the current source file for listing and next line to list.
-   If a file is not set, try and get a default.
+/* If the current source file for listing is not set, try and get a default.
+   Usually called before get_current_source_symtab_and_line() is called.
    It may err out if a default cannot be determined.
-   Depending on where it is called, it can recurse as the process of
-   determining a new default may call the caler!
-   Use get_current_source_symtab_and_line instead to get whatever
-   we have without erroring out or trying to get a default.
-   NOTE: The returned sal pc and end fields are not valid. */
+   We must be cautious about where it is called, as it can recurse as the
+   process of determining a new default may call the caller!
+   Use get_current_source_symtab_and_line only to get whatever
+   we have without erroring out or trying to get a default. */
    
-struct symtab_and_line
-get_current_or_default_source_symtab_and_line (void)
+void
+set_default_source_symtab_and_line (void)
 {
   struct symtab_and_line cursal;
 
@@ -176,21 +178,15 @@ get_current_or_default_source_symtab_and_line (void)
   /* Pull in a current source symtab if necessary */
   if (current_source_symtab == 0)
     select_source_symtab (0);
-  
-  cursal.symtab = current_source_symtab;
-  cursal.line = current_source_line;
-  cursal.pc = 0;
-  cursal.end = 0;
-  
-  return cursal;
 }
 
 /* Return the current default file for listing and next line to list
    (the returned sal pc and end fields are not valid.)
-   and set the surrent default to whatever is in SAL */
+   and set the current default to whatever is in SAL.
+   NOTE: The returned sal pc and end fields are not valid. */
    
 struct symtab_and_line
-set_current_source_symtab_and_line (struct symtab_and_line *sal)
+set_current_source_symtab_and_line (const struct symtab_and_line *sal)
 {
   struct symtab_and_line cursal;
   
@@ -243,7 +239,7 @@ select_source_symtab (register struct symtab *s)
 
   /* Make the default place to list be the function `main'
      if one exists.  */
-  if (lookup_symbol (main_name (), 0, VAR_NAMESPACE, 0, NULL))
+  if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0, NULL))
     {
       sals = decode_line_spec (main_name (), 1);
       sal = sals.sals[0];
@@ -362,6 +358,12 @@ init_source_path (void)
   forget_cached_source_info ();
 }
 
+void
+init_last_source_visited (void)
+{
+  last_source_visited = NULL;
+}
+
 /* Add zero or more directories to the front of the source path.  */
 
 void
@@ -391,6 +393,18 @@ directory_command (char *dirname, int from_tty)
 
 void
 mod_path (char *dirname, char **which_path)
+{
+  add_path (dirname, which_path, 1);
+}
+
+/* Workhorse of mod_path.  Takes an extra argument to determine
+   if dirname should be parsed for separators that indicate multiple
+   directories.  This allows for interfaces that pre-parse the dirname
+   and allow specification of traditional separator characters such
+   as space or tab. */
+
+void
+add_path (char *dirname, char **which_path, int parse_separators)
 {
   char *old = *which_path;
   int prefix = 0;
@@ -408,9 +422,16 @@ mod_path (char *dirname, char **which_path)
       struct stat st;
 
       {
-	char *separator = strchr (name, DIRNAME_SEPARATOR);
-	char *space = strchr (name, ' ');
-	char *tab = strchr (name, '\t');
+	char *separator = NULL;
+	char *space = NULL;
+	char *tab = NULL;
+
+	if (parse_separators)
+	  {
+	    separator = strchr (name, DIRNAME_SEPARATOR);
+	    space = strchr (name, ' ');
+	    tab = strchr (name, '\t');
+	  }
 
 	if (separator == 0 && space == 0 && tab == 0)
 	  p = dirname = name + strlen (name);
@@ -541,7 +562,8 @@ mod_path (char *dirname, char **which_path)
 	    tinybuf[0] = DIRNAME_SEPARATOR;
 	    tinybuf[1] = '\0';
 
-	    /* If we have already tacked on a name(s) in this command,                     be sure they stay on the front as we tack on some more.  */
+	    /* If we have already tacked on a name(s) in this command, be sure they stay 
+	       on the front as we tack on some more.  */
 	    if (prefix)
 	      {
 		char *temp, c;
@@ -652,14 +674,24 @@ openp (const char *path, int try_cwd_first, const char *string,
   mode |= O_BINARY;
 #endif
 
-  if ((try_cwd_first || IS_ABSOLUTE_PATH (string)) && is_regular_file (string))
+  if (try_cwd_first || IS_ABSOLUTE_PATH (string))
     {
       int i;
-      filename = alloca (strlen (string) + 1);
-      strcpy (filename, string);
-      fd = open (filename, mode, prot);
-      if (fd >= 0)
-	goto done;
+
+      if (is_regular_file (string))
+	{
+	  filename = alloca (strlen (string) + 1);
+	  strcpy (filename, string);
+	  fd = open (filename, mode, prot);
+	  if (fd >= 0)
+	    goto done;
+	}
+      else
+	{
+	  filename = NULL;
+	  fd = -1;
+	}
+
       for (i = 0; string[i]; i++)
 	if (IS_DIR_SEPARATOR (string[i]))
 	  goto done;
@@ -1202,8 +1234,9 @@ print_source_lines (struct symtab *s, int line, int stopline, int noerror)
 
 /* Print a list of files and line numbers which a user may choose from
    in order to list a function which was specified ambiguously (as with
-   `list classname::overloadedfuncname', for example).  The vector in
-   SALS provides the filenames and line numbers.  */
+   `list classname::overloadedfuncname', or 'list objectiveCSelector:).
+   The vector in SALS provides the filenames and line numbers.
+   NOTE: some of the SALS may have no filename or line information! */
 
 static void
 ambiguous_line_spec (struct symtabs_and_lines *sals)
@@ -1225,7 +1258,7 @@ line_info (char *arg, int from_tty)
   CORE_ADDR start_pc, end_pc;
   int i;
 
-  INIT_SAL (&sal);		/* initialize to zeroes */
+  init_sal (&sal);		/* initialize to zeroes */
 
   if (arg == 0)
     {