[PATCH] Fixes for a small number of compiler warnings

[Alan Modra]

On Tue, Mar 31, 2015 at 09:25:41PM -0400, Hans-Peter Nilsson wrote:
> On Wed, 1 Apr 2015, Alan Modra wrote:
> > On Tue, Mar 31, 2015 at 04:47:10PM +0200, Ed Schouten wrote:
> > > --- a/ld/emultempl/elf32.em
> > > +++ b/ld/emultempl/elf32.em
> > > @@ -1412,7 +1412,7 @@ gld${EMULATION_NAME}_before_allocation (void)
> > >    asection *sinterp;
> > >    bfd *abfd;
> > >    struct elf_link_hash_entry *ehdr_start = NULL;
> > > -  struct bfd_link_hash_entry ehdr_start_save = ehdr_start_save;
> > > +  struct bfd_link_hash_entry ehdr_start_save = {};
> > >
> > >    if (is_elf_hash_table (link_info.hash))
> > >      {
> >
> > Committed.
> 
> earmelf.c: In function 'gldarmelf_before_allocation':
> earmelf.c:1448:10: error: missing initializer
> [-Werror=missing-field-initializers]earmelf.c:1448:10: error: (near initialization for 'ehdr_start_save.root') [-Werror=missing-field-initializers]
> cc1: all warnings being treated as errors

Let's just remove the init then.

Older compilers that warn wrongly will just need -Wno-error.  No way
am I going to init every single field, then have to edit this code
whenever bfd_link_hash_entry changes.  Another option, making the
struct static, isn't very nice since it means larger binaries and
worse code.

	* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Don't
	init ehdr_start_save.

diff --git a/ld/emultempl/elf32.em b/ld/emultempl/elf32.em
index 2caddbe..ece2fb0 100644
--- a/ld/emultempl/elf32.em
+++ b/ld/emultempl/elf32.em
@@ -1412,7 +1412,7 @@ gld${EMULATION_NAME}_before_allocation (void)
   asection *sinterp;
   bfd *abfd;
   struct elf_link_hash_entry *ehdr_start = NULL;
-  struct bfd_link_hash_entry ehdr_start_save = {};
+  struct bfd_link_hash_entry ehdr_start_save;
 
   if (is_elf_hash_table (link_info.hash))
     {