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Re: [gomp4] Add tables generation

From: Bernd Schmidt <bernds at codesourcery dot com>
To: Thomas Schwinge <thomas at codesourcery dot com>, Jakub Jelinek <jakub at redhat dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Ilya Verbin <iverbin at gmail dot com>, Michael Zolotukhin <michael dot v dot zolotukhin at gmail dot com>
Date: Sat, 5 Apr 2014 17:22:09 +0200
Subject: Re: [gomp4] Add tables generation
Authentication-results: sourceware.org; auth=none
References: <532B1C45 dot 9020308 at codesourcery dot com> <20140320185619 dot GN1817 at tucnak dot redhat dot com> <532C5729 dot 5050101 at codesourcery dot com> <20140321152053 dot GS1817 at tucnak dot redhat dot com> <533E7BC9 dot 8000504 at codesourcery dot com> <87lhvjhl6e dot fsf at kepler dot schwinge dot homeip dot net>

On 04/05/2014 05:04 PM, Thomas Schwinge wrote:

Is it a linker bug that I need to add something like the following?

--- libgcc/ompstuff.c
+++ libgcc/ompstuff.c
@@ -40,6 +40,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  #include "libgcc_tm.h"

  #if defined(HAVE_GAS_HIDDEN) && defined(ENABLE_OFFLOADING)
+# if 1
+/* TODO: Without the following, will get missing symbols for __start_* and
+   __stop_*.  Linker bug?  */
+static void *_funcs[0] __attribute__ ((section ("__gnu_offload_funcs"))) = { };
+static void *_vars[0] __attribute__ ((section ("__gnu_offload_vars"))) = { };
+# endif

Things seemed to work over here, but now I'm not certain whether the__start_/__stop_ functionality is GNU ld specific? Maybe we should justgo back to the previous version of this patch which didn't try to use this.



Bernd

Follow-Ups:
- Re: [gomp4] Add tables generation
  - From: Jakub Jelinek

References:
- Re: [gomp4] Add tables generation
  - From: Bernd Schmidt
- Re: [gomp4] Add tables generation
  - From: Thomas Schwinge

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