Add new function to access gdb_program_name.

  https://sourceware.org/ml/gdb-patches/2013-09/msg00225.html

gdb/ChangeLog

        * main.h (get_gdb_program_name): Add declaration.
        * main.c (get_gdb_program_name): Add definition.

1 files changed, 6 insertions, 0 deletions

diff --git a/gdb/main.h b/gdb/main.h
index a5260b1..a846d9f 100644
--- a/gdb/main.h
+++ b/gdb/main.h
@@ -42,4 +42,10 @@ extern int batch_flag;
    return value is in malloc'ed storage.  */
 extern char *windows_get_absolute_argv0 (const char *argv0);
 
+/* Return read only pointer to the name of gdb as it was invoked.  This
+   might have been expanded to an absolute path if required by the
+   platform.  Could return NULL if called before gdb has had a chance to
+   parse the argv array.  */
+extern const char * get_gdb_program_name (void);
+
 #endif