Adding -file-list-exec-source-file command to MI

5 files changed, 105 insertions, 0 deletions

diff --git a/gdb/mi/mi-cmd-file.c b/gdb/mi/mi-cmd-file.c
new file mode 100644
index 0000000..eb1d67a
--- /dev/null
+++ b/gdb/mi/mi-cmd-file.c
@@ -0,0 +1,67 @@
+/* MI Command Set - breakpoint and watchpoint commands.
+   Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
+   Contributed by Cygnus Solutions (a Red Hat company).
+
+   This file is part of GDB.
+
+   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
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   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.  */
+
+#include "defs.h"
+#include "mi-cmds.h"
+#include "mi-getopt.h"
+#include "ui-out.h"
+#include "symtab.h"
+#include "source.h"
+
+/* Return to the client the absolute path and line number of the 
+   current file being executed. */
+
+enum mi_cmd_result
+mi_cmd_file_list_exec_source_file(char *command, char **argv, int argc)
+{
+  struct symtab_and_line st;
+  int optind = 0;
+  char *optarg;
+  
+  if ( !mi_valid_noargs("mi_cmd_file_list_exec_source_file", argc, argv) )
+    error ("mi_cmd_file_list_exec_source_file: Usage: No args");
+
+  
+  /* Set the default file and line, also get them */
+  set_default_source_symtab_and_line();
+  st = get_current_source_symtab_and_line();
+
+  /* We should always get a symtab. 
+     Apparently, filename does not need to be tested for NULL.
+     The documentation in symtab.h suggests it will always be correct */
+  if (!st.symtab)
+    error ("mi_cmd_file_list_exec_source_file: No symtab");
+
+  /* Extract the fullname if it is not known yet */
+  if (st.symtab->fullname == NULL)
+    symtab_to_filename (st.symtab);
+
+  /* We may not be able to open the file (not available). */
+  if (st.symtab->fullname == NULL)
+    error ("mi_cmd_file_list_exec_source_file: File not found");
+
+  /* Print to the user the line, filename and fullname */
+  ui_out_field_int (uiout, "line", st.line);
+  ui_out_field_string (uiout, "file", st.symtab->filename);
+  ui_out_field_string (uiout, "fullname", st.symtab->fullname);
+
+  return MI_CMD_DONE;
+}
diff --git a/gdb/mi/mi-cmds.c b/gdb/mi/mi-cmds.c
index 5a0bf50..d677842 100644
--- a/gdb/mi/mi-cmds.c
+++ b/gdb/mi/mi-cmds.c
@@ -80,6 +80,7 @@ struct mi_cmd mi_cmds[] =
   {"file-exec-and-symbols", "file %s", 0},
   {"file-exec-file", "exec-file %s", 0},
   {"file-list-exec-sections", 0, 0},
+  {"file-list-exec-source-file", 0, 0, mi_cmd_file_list_exec_source_file},
   {"file-list-exec-source-files", 0, 0},
   {"file-list-shared-libraries", 0, 0},
   {"file-list-symbol-files", 0, 0},
diff --git a/gdb/mi/mi-cmds.h b/gdb/mi/mi-cmds.h
index 3eb6153..47e1bbf 100644
--- a/gdb/mi/mi-cmds.h
+++ b/gdb/mi/mi-cmds.h
@@ -80,6 +80,7 @@ extern mi_cmd_args_ftype mi_cmd_exec_step;
 extern mi_cmd_args_ftype mi_cmd_exec_step_instruction;
 extern mi_cmd_args_ftype mi_cmd_exec_until;
 extern mi_cmd_args_ftype mi_cmd_exec_interrupt;
+extern mi_cmd_argv_ftype mi_cmd_file_list_exec_source_file;
 extern mi_cmd_argv_ftype mi_cmd_gdb_exit;
 extern mi_cmd_argv_ftype mi_cmd_interpreter_exec;
 extern mi_cmd_argv_ftype mi_cmd_stack_info_depth;
diff --git a/gdb/mi/mi-getopt.c b/gdb/mi/mi-getopt.c
index 59ccdf3..3f2a902 100644
--- a/gdb/mi/mi-getopt.c
+++ b/gdb/mi/mi-getopt.c
@@ -74,3 +74,19 @@ mi_getopt (const char *prefix,
     }
   error ("%s: Unknown option ``%s''", prefix, arg + 1);
 }
+
+int 
+mi_valid_noargs (const char *prefix, int argc, char **argv) 
+{
+  int optind = 0;
+  char *optarg;
+  static struct mi_opt opts[] =
+  {
+    0
+  };
+
+  if (mi_getopt (prefix, argc, argv, opts, &optind, &optarg) == -1)
+    return 1;
+  else
+    return 0;
+}
diff --git a/gdb/mi/mi-getopt.h b/gdb/mi/mi-getopt.h
index 6b31adf..17d66fb 100644
--- a/gdb/mi/mi-getopt.h
+++ b/gdb/mi/mi-getopt.h
@@ -57,4 +57,24 @@ struct mi_opt
 
 struct mi_opt;
 
+/* mi_valid_noargs
+   
+   Determines if ARGC/ARGV are a valid set of parameters to satisfy 
+   an MI function that is not supposed to recieve any arguments.
+   
+   An MI function that should not recieve arguments can still be 
+   passed parameters after the special option '--' such as below.
+
+   Example: The MI function -exec-run takes no args.
+   However, the client may pass '-exec-run -- -a ...'
+   See PR-783
+
+   PREFIX is passed to mi_getopt for an error message.
+    
+   This function Returns 1 if the parameter pair ARGC/ARGV are valid
+   for an MI function that takes no arguments. Otherwise, it returns 0
+   and the appropriate error message is displayed by mi_getopt.  */
+
+extern int mi_valid_noargs (const char *prefix, int argc, char **argv);
+				
 #endif