Attachment 158563 Details for Bug 246800 – PR30384 fix.

[patch] PR30384 fix.

gcc41-pr30384.patch (text/plain), 1.38 KB, created by Lennert Buytenhek on 2007-07-05 00:05:52 UTC

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Creator: Lennert Buytenhek

Created: 2007-07-05 00:05:52 UTC

Size: 1.38 KB

patch

obsolete

>http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01010.html
>
>
>Subject: Segfault on arm-linux-gnueabi
>
>The patch below fixes a crash building libgfortran on arm-linux-gnueabi.
>
>This target doesn't really have a 128-bit integer type, however it does use 
>TImode to represent the return value of certain special ABI defined library 
>functions. This results in type_for_size(TImode) being called.
>
>Because TImode deosn't correspond to any gfortran integer kind 
>gfc_type_for_size returns NULL and we segfault shortly after.
>
>The patch below fixes this by making gfc_type_for_size handle TImode in the 
>same way as the C frontend.
>
>Tested on x86_64-linux and arm-linux-gnueabi.
>Applied to trunk.
>
>Paul
>
>2007-05-15  Paul Brook  <paul@codesourcery.com>
>
>	gcc/fortran/
>	* trans-types.c (gfc_type_for_size): Handle signed TImode.
>
>Index: gcc/fortran/trans-types.c
>===================================================================
>--- gcc/fortran/trans-types.c
>+++ gcc/fortran/trans-types.c
>@@ -1783,6 +1783,13 @@ gfc_type_for_size (unsigned bits, int un
> 	  if (type && bits == TYPE_PRECISION (type))
> 	    return type;
> 	}
>+
>+      /* Handle TImode as a special case because it is used by some backends
>+         (eg. ARM) even though it is not available for normal use.  */
>+#if HOST_BITS_PER_WIDE_INT >= 64
>+      if (bits == TYPE_PRECISION (intTI_type_node))
>+	return intTI_type_node;
>+#endif
>     }
>   else
>     {

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