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authorYann E. MORIN" <yann.morin.1998@anciens.enib.fr>2008-07-17 19:36:21 (GMT)
committerYann E. MORIN" <yann.morin.1998@anciens.enib.fr>2008-07-17 19:36:21 (GMT)
commitf28c290278334712aec77f632bd07e8a083a05b1 (patch)
treefd5120eb5832ca16effd91b796f1ab79c7ae0546 /patches/gcc
parent387d109fa0743a45a1748a1109b2b8578778cb1a (diff)
Make gfortran compile for ARM. Details in patch itself.
/trunk/patches/gcc/4.2.3/950-fortran-signed-TImode.patch | 43 43 0 0 ++++++++++++++++++++++ 1 file changed, 43 insertions(+)
Diffstat (limited to 'patches/gcc')
-rw-r--r--patches/gcc/4.2.3/950-fortran-signed-TImode.patch43
1 files changed, 43 insertions, 0 deletions
diff --git a/patches/gcc/4.2.3/950-fortran-signed-TImode.patch b/patches/gcc/4.2.3/950-fortran-signed-TImode.patch
new file mode 100644
index 0000000..01e2f01
--- /dev/null
+++ b/patches/gcc/4.2.3/950-fortran-signed-TImode.patch
@@ -0,0 +1,43 @@
+Fix building gfortran for ARM.
+http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01010.html
+----
+
+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.
+
+diff -durN gcc-4.2.3.old/gcc/fortran/trans-types.c gcc-4.2.3/gcc/fortran/trans-types.c
+--- gcc-4.2.3.old/gcc/fortran/trans-types.c 2007-08-31 10:27:50.000000000 +0200
++++ gcc-4.2.3/gcc/fortran/trans-types.c 2008-07-17 09:54:20.000000000 +0200
+@@ -1799,6 +1799,13 @@
+ 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
+ {