rs6000, libgcc: Fix up -Wmissing-prototypes warning on rs6000/linux-unwind.h

Message ID 20211110083912.GD2710@tucnak
State Committed
Headers
Series rs6000, libgcc: Fix up -Wmissing-prototypes warning on rs6000/linux-unwind.h |

Commit Message

Jakub Jelinek Nov. 10, 2021, 8:39 a.m. UTC
  Hi!

Jonathan reported and I've verified a
In file included from ../../../libgcc/unwind-dw2.c:412:
./md-unwind-support.h:398:6: warning: no previous prototype for ‘ppc_backchain_fallback’ [-Wmissing-prototypes]
  398 | void ppc_backchain_fallback (struct _Unwind_Context *context, void *a)
      |      ^~~~~~~~~~~~~~~~~~~~~~
warning on powerpc*-linux* libgcc build.

All the other MD_* macro functions are static, so I think the following
is the right thing rather than adding a previous prototype for
ppc_backchain_fallback.

Bootstrapped/regtested on powerpc64le-linux and powerpc64-linux (the latter
with -m32/-m64 testing), ok for trunk?

2021-11-09  Jakub Jelinek  <jakub@redhat.com>

	* config/rs6000/linux-unwind.h (ppc_back_fallback): Make it static,
	formatting fix.


	Jakub
  

Comments

Segher Boessenkool Nov. 10, 2021, 8:54 a.m. UTC | #1
On Wed, Nov 10, 2021 at 09:39:12AM +0100, Jakub Jelinek wrote:
> Hi!
> 
> Jonathan reported and I've verified a
> In file included from ../../../libgcc/unwind-dw2.c:412:
> ./md-unwind-support.h:398:6: warning: no previous prototype for ‘ppc_backchain_fallback’ [-Wmissing-prototypes]
>   398 | void ppc_backchain_fallback (struct _Unwind_Context *context, void *a)
>       |      ^~~~~~~~~~~~~~~~~~~~~~
> warning on powerpc*-linux* libgcc build.
> 
> All the other MD_* macro functions are static, so I think the following
> is the right thing rather than adding a previous prototype for
> ppc_backchain_fallback.
> 
> Bootstrapped/regtested on powerpc64le-linux and powerpc64-linux (the latter
> with -m32/-m64 testing), ok for trunk?

Yes please.  Thanks!


Segher


> 2021-11-09  Jakub Jelinek  <jakub@redhat.com>
> 
> 	* config/rs6000/linux-unwind.h (ppc_back_fallback): Make it static,
> 	formatting fix.
  

Patch

--- libgcc/config/rs6000/linux-unwind.h.jj	2021-10-15 11:59:16.227682621 +0200
+++ libgcc/config/rs6000/linux-unwind.h	2021-11-09 11:42:06.840353422 +0100
@@ -395,7 +395,8 @@  struct frame_layout
 };
 
 
-void ppc_backchain_fallback (struct _Unwind_Context *context, void *a)
+static void
+ppc_backchain_fallback (struct _Unwind_Context *context, void *a)
 {
   struct frame_layout *current;
   struct trace_arg *arg = a;