Change file initialization to use INIT_GDB_FILE macro

This patch introduces a new macro, INIT_GDB_FILE.  This is used to
replace the current "_initialize_" idiom when introducing a per-file
initialization function.  That is, rather than write:

    void _initialize_something ();
    void
    _initialize_something ()
    {
       ...
    }

... now you would write:

    INIT_GDB_FILE (something)
    {
       ...
    }

The macro handles both the declaration and definition of the function.

The point of this approach is that it makes it harder to accidentally
cause an initializer to be omitted; see commit 2711e475 ("Ensure
cooked_index_entry self-tests are run").  Specifically, the regexp now
used by make-init-c seems harder to trick.

New in v2: un-did some erroneous changes made by the script.

The bulk of this patch was written by script.
Regression tested on x86-64 Fedora 41.

1 files changed, 1 insertions, 3 deletions

diff --git a/gdb/macroscope.c b/gdb/macroscope.c
index 633ead1..7aa0784 100644
--- a/gdb/macroscope.c
+++ b/gdb/macroscope.c
@@ -149,9 +149,7 @@ standard_macro_lookup (const char *name, const macro_scope &ms)
   return result;
 }
 
-void _initialize_macroscope ();
-void
-_initialize_macroscope ()
+INIT_GDB_FILE (macroscope)
 {
   macro_user_macros = new_macro_table (NULL, NULL, NULL);
   macro_set_main (macro_user_macros, "<user-defined>");