2001-01-26 Fernando Nasser <fnasser@redhat.com>

        Fix double parsing of filenames passed as command line arguments
        to GDB (causes weird handling of escape characters).
        Also, remove dependencies on the CLI from libgdb.
        * call-cmds.h: Remove declaration of exec_file_command().
        * gdbcore.h: Remove declaration of exec_file_command().
        Add declarations for exec_open() and exec_file_clear().
        * symfile.h: Add declarations for symbol_file_add_main() and
        symbol_file_clear().
        * exec.c (exec_open): New function. Implements to_open for exec
        targets.
        (exec_file_clear): New function. Makes GDB forget about a previously
        specified executable file.
        (exec_file_attach): Move parsing of arguments from here ...
        (exec_file_command): ... to here.
        (init_exec_ops): Use exec_open(), not exec_file_command() to
        implement to_open for exec targets.
        * symfile.c (symbol_file_add_main): New function. Call symbol_file_add()        with default values.  Used when the file name has already been parsed.
        (symbol_file_clear): New function. Makes GDB forget about previously
        read symbols.
        (symbol_file_command): Call the above function instead of inline code.
        * main.c: Include "symfile.h" and "gdbcore.h" instead of the deprecated
        "call-cmds.h".
        (captured_main): Call exec_file_attach() and symbol_file_add_main()
        instead of exec_file_command() and symbol_file_command().
        (captured_main): Add comment.
        * corefile.c: Include "symfile.h".
        (core_file_command): Call symbol_file_add_main() instead of
        symbol_file_command().
        (reopen_exec_file): Call exec_open() instead of exec_file_command().
        * infcmd.c: Include "symfile.h".
        (attach_command): Call symbol_file_add_main() instead of
        symbol_file_command().
        * infrun.c: Remove comment about the inclusion of "symfile.h",
        not any longer appropriate.
        (follow_exec): Call symbol_file_add_main() instead of
        symbol_file_command().
        * remote-es.c: Include "symfile.h".
        (es1800_load): Call symbol_file_add_main() instead of
        symbol_file_command().
        * remote-vx.c: Remove comment about the inclusion of "symfile.h",
        not any longer appropriate.
        (vx-wait): Call symbol_file_add_main() instead of
        symbol_file_command().
        * solib-svr4.c (open_symbol_file_object): Call symbol_file_add_main()
        instead of symbol_file_command().
        * v850ice.c (ice_file): Call exec_open(), exec_file_attach() and
        symbol_file_add_main() instead of exec_file_command() and
        symbol_file_command().
        * Makefile.in: Update dependencies.

14 files changed, 183 insertions, 71 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 96ca6d23bfe..e8afaf5fd3d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,56 @@
+2001-01-26  Fernando Nasser  <fnasser@redhat.com>
+
+	Fix double parsing of filenames passed as command line arguments
+	to GDB (causes weird handling of escape characters).
+	Also, remove dependencies on the CLI from libgdb.
+	* call-cmds.h: Remove declaration of exec_file_command().
+	* gdbcore.h: Remove declaration of exec_file_command().
+	Add declarations for exec_open() and exec_file_clear().
+	* symfile.h: Add declarations for symbol_file_add_main() and
+	symbol_file_clear().
+	* exec.c (exec_open): New function. Implements to_open for exec
+	targets.
+	(exec_file_clear): New function. Makes GDB forget about a previously
+	specified executable file.
+	(exec_file_attach): Move parsing of arguments from here ...
+	(exec_file_command): ... to here.
+	(init_exec_ops): Use exec_open(), not exec_file_command() to
+	implement to_open for exec targets.
+	* symfile.c (symbol_file_add_main): New function. Call symbol_file_add()
+	with default values.  Used when the file name has already been parsed.
+	(symbol_file_clear): New function. Makes GDB forget about previously
+	read symbols.
+	(symbol_file_command): Call the above function instead of inline code.
+	* main.c: Include "symfile.h" and "gdbcore.h" instead of the deprecated
+	"call-cmds.h".
+	(captured_main): Call exec_file_attach() and symbol_file_add_main()
+	instead of exec_file_command() and symbol_file_command().
+	(captured_main): Add comment.
+	* corefile.c: Include "symfile.h".
+	(core_file_command): Call symbol_file_add_main() instead of
+	symbol_file_command().
+	(reopen_exec_file): Call exec_open() instead of exec_file_command().
+	* infcmd.c: Include "symfile.h".
+	(attach_command): Call symbol_file_add_main() instead of 
+        symbol_file_command().
+	* infrun.c: Remove comment about the inclusion of "symfile.h",
+	not any longer appropriate.
+	(follow_exec): Call symbol_file_add_main() instead of 
+        symbol_file_command().
+	* remote-es.c: Include "symfile.h".
+	(es1800_load): Call symbol_file_add_main() instead of 
+        symbol_file_command().
+	* remote-vx.c: Remove comment about the inclusion of "symfile.h",
+        not any longer appropriate.
+	(vx-wait): Call symbol_file_add_main() instead of 
+        symbol_file_command().
+	* solib-svr4.c (open_symbol_file_object): Call symbol_file_add_main()
+	instead of symbol_file_command().
+	* v850ice.c (ice_file): Call exec_open(), exec_file_attach() and
+	symbol_file_add_main() instead of exec_file_command() and
+	symbol_file_command().
+	* Makefile.in: Update dependencies.
+
 2001-01-26  Jeff Holcomb  <jeffh@redhat.com>
 
 	* remote-udi.c (udi_open): Change strdup to xstrdup.
diff --git a/gdb/call-cmds.h b/gdb/call-cmds.h
index b8673fa7d91..d8e93582605 100644
--- a/gdb/call-cmds.h
+++ b/gdb/call-cmds.h
@@ -25,8 +25,6 @@
 
 extern void initialize_all_files (void);
 
-extern void exec_file_command (char *, int);
-
 extern void core_file_command (char *, int);
 
 extern void break_command (char *, int);
diff --git a/gdb/corefile.c b/gdb/corefile.c
index 4447f777473..cc51109c9c4 100644
--- a/gdb/corefile.c
+++ b/gdb/corefile.c
@@ -29,6 +29,7 @@
 #include "symtab.h"
 #include "command.h"
 #include "gdbcmd.h"
+#include "symfile.h"
 #include "bfd.h"
 #include "target.h"
 #include "gdbcore.h"
@@ -92,7 +93,7 @@ core_file_command (char *filename, int from_tty)
 		char *symfile_copy = xstrdup (symfile);
 
 		make_cleanup (xfree, symfile_copy);
-		symbol_file_command (symfile_copy, from_tty);
+		symbol_file_add_main (symfile_copy, from_tty);
 	      }
 	    else
 	      warning ("Unknown symbols for '%s'; use the 'symbol-file' command.", filename);
@@ -188,7 +189,9 @@ reopen_exec_file (void)
   res = stat (filename, &st);
 
   if (mtime && mtime != st.st_mtime)
-    exec_file_command (filename, 0);
+    {
+      exec_open (filename, 0);
+    }
 #endif
 }
 
diff --git a/gdb/exec.c b/gdb/exec.c
index e39062beca5..29da0cc0100 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -94,6 +94,13 @@ CORE_ADDR text_end = 0;
 
 struct vmap *vmap;
 
+void
+exec_open (char *args, int from_tty)
+{
+  target_preopen (from_tty);
+  exec_file_attach (args, from_tty);
+}
+
 /* ARGSUSED */
 static void
 exec_close (int quitting)
@@ -150,6 +157,16 @@ exec_close (int quitting)
     }
 }
 
+void
+exec_file_clear (int from_tty)
+{
+  /* Remove exec file.  */
+  unpush_target (&exec_ops);
+
+  if (from_tty)
+    printf_unfiltered ("No executable file now.\n");
+}
+
 /*  Process the first arg in ARGS as the new exec file.
 
    This function is intended to be behave essentially the same
@@ -165,42 +182,28 @@ exec_close (int quitting)
    given a pid but not a exec pathname, and the attach command could
    figure out the pathname from the pid.  (In this case, we shouldn't
    ask the user whether the current target should be shut down --
-   we're supplying the exec pathname late for good reason.) */
+   we're supplying the exec pathname late for good reason.)
+   
+   ARGS is assumed to be the filename. */
 
 void
-exec_file_attach (char *args, int from_tty)
+exec_file_attach (char *filename, int from_tty)
 {
-  char **argv;
-  char *filename;
-
   /* Remove any previous exec file.  */
   unpush_target (&exec_ops);
 
   /* Now open and digest the file the user requested, if any.  */
 
-  if (args)
+  if (!filename)
+    {
+      if (from_tty)
+        printf_unfiltered ("No executable file now.\n");
+    }
+  else
     {
       char *scratch_pathname;
       int scratch_chan;
 
-      /* Scan through the args and pick up the first non option arg
-         as the filename.  */
-
-      argv = buildargv (args);
-      if (argv == NULL)
-	nomem (0);
-
-      make_cleanup_freeargv (argv);
-
-      for (; (*argv != NULL) && (**argv == '-'); argv++)
-	{;
-	}
-      if (*argv == NULL)
-	error ("No executable file name was specified");
-
-      filename = tilde_expand (*argv);
-      make_cleanup (xfree, filename);
-
       scratch_chan = openp (getenv ("PATH"), 1, filename,
 		   write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
 			    &scratch_pathname);
@@ -298,21 +301,47 @@ exec_file_attach (char *args, int from_tty)
       if (exec_file_display_hook)
 	(*exec_file_display_hook) (filename);
     }
-  else if (from_tty)
-    printf_unfiltered ("No executable file now.\n");
 }
 
 /*  Process the first arg in ARGS as the new exec file.
 
    Note that we have to explicitly ignore additional args, since we can
    be called from file_command(), which also calls symbol_file_command()
-   which can take multiple args. */
+   which can take multiple args.
+   
+   If ARGS is NULL, we just want to close the exec file. */
 
-void
+static void
 exec_file_command (char *args, int from_tty)
 {
+  char **argv;
+  char *filename;
+  
   target_preopen (from_tty);
-  exec_file_attach (args, from_tty);
+
+  if (args)
+    {
+      /* Scan through the args and pick up the first non option arg
+         as the filename.  */
+
+      argv = buildargv (args);
+      if (argv == NULL)
+        nomem (0);
+
+      make_cleanup_freeargv (argv);
+
+      for (; (*argv != NULL) && (**argv == '-'); argv++)
+        {;
+        }
+      if (*argv == NULL)
+        error ("No executable file name was specified");
+
+      filename = tilde_expand (*argv);
+      make_cleanup (xfree, filename);
+      exec_file_attach (filename, from_tty);
+    }
+  else
+    exec_file_attach (NULL, from_tty);
 }
 
 /* Set both the exec file and the symbol file, in one command.  
@@ -666,7 +695,7 @@ init_exec_ops (void)
   exec_ops.to_longname = "Local exec file";
   exec_ops.to_doc = "Use an executable file as a target.\n\
 Specify the filename of the executable file.";
-  exec_ops.to_open = exec_file_command;
+  exec_ops.to_open = exec_open;
   exec_ops.to_close = exec_close;
   exec_ops.to_attach = find_default_attach;
   exec_ops.to_require_attach = find_default_require_attach;
diff --git a/gdb/gdbcore.h b/gdb/gdbcore.h
index bdf14c264a8..c3db1da0828 100644
--- a/gdb/gdbcore.h
+++ b/gdb/gdbcore.h
@@ -98,9 +98,11 @@ extern int write_files;
 
 extern void core_file_command (char *filename, int from_tty);
 
+extern void exec_open (char *filename, int from_tty);
+
 extern void exec_file_attach (char *filename, int from_tty);
 
-extern void exec_file_command (char *filename, int from_tty);
+extern void exec_file_clear (int from_tty);
 
 extern void validate_files (void);
 
diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index 91c6fac16e1..bdc120af8ba 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -29,6 +29,7 @@
 #include "environ.h"
 #include "value.h"
 #include "gdbcmd.h"
+#include "symfile.h"
 #include "gdbcore.h"
 #include "target.h"
 #include "language.h"
@@ -1701,7 +1702,7 @@ attach_command (char *args, int from_tty)
 	    full_exec_path = savestring (exec_file, strlen (exec_file));
 
 	  exec_file_attach (full_exec_path, from_tty);
-	  symbol_file_command (full_exec_path, from_tty);
+	  symbol_file_add_main (full_exec_path, from_tty);
 	}
     }
 
diff --git a/gdb/infrun.c b/gdb/infrun.c
index e934c9ddca9..58ebfdd3d15 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -31,7 +31,7 @@
 #include "target.h"
 #include "gdbthread.h"
 #include "annotate.h"
-#include "symfile.h"		/* for overlay functions */
+#include "symfile.h"
 #include "top.h"
 #include <signal.h>
 #include "inf-loop.h"
@@ -650,6 +650,8 @@ follow_vfork (int parent_pid, int child_pid)
     }
 }
 
+/* EXECD_PATHNAME is assumed to be non-NULL. */
+
 static void
 follow_exec (int pid, char *execd_pathname)
 {
@@ -727,7 +729,7 @@ follow_exec (int pid, char *execd_pathname)
   exec_file_attach (execd_pathname, 0);
 
   /* And also is where symbols can be found. */
-  symbol_file_command (execd_pathname, 0);
+  symbol_file_add_main (execd_pathname, 0);
 
   /* Reset the shared library package.  This ensures that we get
      a shlib event when the child reaches "_start", at which point
diff --git a/gdb/main.c b/gdb/main.c
index bf98ffadcfa..185b46ec9f1 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -22,7 +22,8 @@
 #include "top.h"
 #include "target.h"
 #include "inferior.h"
-#include "call-cmds.h"
+#include "symfile.h"
+#include "gdbcore.h"
 
 #include "getopt.h"
 
@@ -474,6 +475,7 @@ extern int gdbtk_test (char *);
 	  execarg = argv[optind];
 	  break;
 	case 2:
+	  /* FIXME: The documentation says this can be a "ProcID". as well. */
 	  corearg = argv[optind];
 	  break;
 	case 3:
@@ -592,15 +594,15 @@ extern int gdbtk_test (char *);
       /* The exec file and the symbol-file are the same.  If we can't
          open it, better only print one error message.
          catch_command_errors returns non-zero on success! */
-      if (catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL))
-	catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL);
+      if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL))
+	catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
     }
   else
     {
       if (execarg != NULL)
-	catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL);
+	catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL);
       if (symarg != NULL)
-	catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL);
+	catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
     }
 
   /* After the symbol file has been read, print a newline to get us
diff --git a/gdb/remote-es.c b/gdb/remote-es.c
index 2d879c1ccc8..97b12633beb 100644
--- a/gdb/remote-es.c
+++ b/gdb/remote-es.c
@@ -106,6 +106,7 @@
 #include "target.h"
 #include "gdb_wait.h"
 #include "command.h"
+#include "symfile.h"
 #include "remote-utils.h"
 #include "gdbcore.h"
 #include "serial.h"
@@ -1318,7 +1319,7 @@ es1800_load (char *filename, int from_tty)
       system (buf);
     }
 
-  symbol_file_command (filename, from_tty);	/* reading symbol table */
+  symbol_file_add_main (filename, from_tty);	/* reading symbol table */
   immediate_quit--;
 }
 
diff --git a/gdb/remote-vx.c b/gdb/remote-vx.c
index 4503e773244..8f03268fae7 100644
--- a/gdb/remote-vx.c
+++ b/gdb/remote-vx.c
@@ -30,7 +30,7 @@
 #include "complaints.h"
 #include "gdbcmd.h"
 #include "bfd.h"		/* Required by objfiles.h.  */
-#include "symfile.h"		/* Required by objfiles.h.  */
+#include "symfile.h"
 #include "objfiles.h"
 #include "gdb-stabs.h"
 
@@ -1039,7 +1039,7 @@ vx_wait (int pid_to_wait_for, struct target_waitstatus *status)
 static int
 symbol_stub (char *arg)
 {
-  symbol_file_command (arg, 0);
+  symbol_file_add_main (arg, 0);
   return 1;
 }
 
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 603c69c4908..c8183c702f1 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -940,7 +940,7 @@ open_symbol_file_object (void *from_ttyp)
 
   make_cleanup (xfree, filename);
   /* Have a pathname: read the symbol file.  */
-  symbol_file_command (filename, from_tty);
+  symbol_file_add_main (filename, from_tty);
 
   return 1;
 }
diff --git a/gdb/symfile.c b/gdb/symfile.c
index b0ae6e2a6ac..abeca3c9c5d 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -897,6 +897,41 @@ symbol_file_add (char *name, int from_tty, struct section_addr_info *addrs,
   return (objfile);
 }
 
+/* Just call the above with default values.
+   Used when the file is supplied in the gdb command line. */
+   
+void
+symbol_file_add_main (char *args, int from_tty)
+{
+  symbol_file_add (args, from_tty, NULL, 1, 0);
+}
+
+void
+symbol_file_clear (int from_tty)
+{
+  if ((have_full_symbols () || have_partial_symbols ())
+      && from_tty
+      && !query ("Discard symbol table from `%s'? ",
+		 symfile_objfile->name))
+    error ("Not confirmed.");
+    free_all_objfiles ();
+
+    /* solib descriptors may have handles to objfiles.  Since their
+       storage has just been released, we'd better wipe the solib
+       descriptors as well.
+     */
+#if defined(SOLIB_RESTART)
+    SOLIB_RESTART ();
+#endif
+
+    symfile_objfile = NULL;
+    if (from_tty)
+      printf_unfiltered ("No symbol file now.\n");
+#ifdef HPUXHPPA
+    RESET_HP_UX_GLOBALS ();
+#endif
+}
+
 /* This is the symbol-file command.  Read the file, analyze its
    symbols, and add a struct symtab to a symtab list.  The syntax of
    the command is rather bizarre--(1) buildargv implements various
@@ -923,27 +958,7 @@ symbol_file_command (char *args, int from_tty)
 
   if (args == NULL)
     {
-      if ((have_full_symbols () || have_partial_symbols ())
-	  && from_tty
-	  && !query ("Discard symbol table from `%s'? ",
-		     symfile_objfile->name))
-	error ("Not confirmed.");
-      free_all_objfiles ();
-
-      /* solib descriptors may have handles to objfiles.  Since their
-         storage has just been released, we'd better wipe the solib
-         descriptors as well.
-       */
-#if defined(SOLIB_RESTART)
-      SOLIB_RESTART ();
-#endif
-
-      symfile_objfile = NULL;
-      if (from_tty)
-	  printf_unfiltered ("No symbol file now.\n");
-#ifdef HPUXHPPA
-      RESET_HP_UX_GLOBALS ();
-#endif
+      symbol_file_clear (from_tty);
     }
   else
     {
diff --git a/gdb/symfile.h b/gdb/symfile.h
index fb5fd175511..467961b32ee 100644
--- a/gdb/symfile.h
+++ b/gdb/symfile.h
@@ -273,6 +273,12 @@ extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, asection *);
 /* convert an address in an overlay section (force into VMA range) */
 extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
 
+/* Load symbols from a file. */
+extern void symbol_file_add_main (char *args, int from_tty);
+
+/* Clear GDB symbol tables. */
+extern void symbol_file_clear (int from_tty);
+
 /* From dwarfread.c */
 
 extern void
diff --git a/gdb/v850ice.c b/gdb/v850ice.c
index 6ce875ae4c0..897313894c6 100644
--- a/gdb/v850ice.c
+++ b/gdb/v850ice.c
@@ -794,11 +794,11 @@ ice_file (char *arg)
   /* Must supress from_tty, otherwise we could start asking if the
      user really wants to load a new symbol table, etc... */
   printf_unfiltered ("Reading symbols from %s...", arg);
-  exec_file_command (arg, 0);
-  symbol_file_command (arg, 0);
+  exec_open (arg, 0);
+  symbol_file_add_main (arg, 0);
   printf_unfiltered ("done\n");
 
-  /* exec_file_command will kill our target, so reinstall the ICE as
+  /* exec_open will kill our target, so reinstall the ICE as
      the target. */
   v850ice_open (NULL, 0);