Merged trunk revision 229518 into the hsa branch

git-svn-id: https://gcc.gnu.org/svn/gcc/branches/hsa@229536 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 74 insertions, 0 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index bfec2588e53..544309aa71c 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,16 @@
+2015-10-27  Daniel Jacobowitz  <dan@codesourcery.com>
+	    Joseph Myers  <joseph@codesourcery.com>
+	    Mark Shinwell  <shinwell@codesourcery.com>
+	    Andrew Stubbs  <ams@codesourcery.com>
+	    Rich Felker <dalias@libc.org>
+
+	* longlong.h (udiv_qrnnd): Add FDPIC compatible version for SH.
+
+2015-10-18  Roland McGrath  <roland@gnu.org>
+
+	PR other/63758
+	* environ.h: New file.
+
 2015-10-13  Jakub Jelinek  <jakub@redhat.com>
 	    Ilya Verbin  <ilya.verbin@intel.com>
 
diff --git a/include/environ.h b/include/environ.h
new file mode 100644
index 00000000000..c18902ba5b4
--- /dev/null
+++ b/include/environ.h
@@ -0,0 +1,33 @@
+/* Declare the environ system variable.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+/* On OSX, the environ variable can be used directly in the code of an
+   executable, but cannot be used in the code of a shared library (such as
+   GCC's liblto_plugin, which links in libiberty code).  Instead, the
+   function _NSGetEnviron can be called to get the address of environ.  */
+
+#ifndef HAVE_ENVIRON_DECL
+#  ifdef __APPLE__
+#     include <crt_externs.h>
+#     define environ (*_NSGetEnviron ())
+#  else
+extern char **environ;
+#  endif
+#  define HAVE_ENVIRON_DECL
+#endif
diff --git a/include/longlong.h b/include/longlong.h
index a0b2ce1f7f2..d7ef671226c 100644
--- a/include/longlong.h
+++ b/include/longlong.h
@@ -1102,6 +1102,33 @@ extern UDItype __umulsidi3 (USItype, USItype);
 /* This is the same algorithm as __udiv_qrnnd_c.  */
 #define UDIV_NEEDS_NORMALIZATION 1
 
+#ifdef __FDPIC__
+/* FDPIC needs a special version of the asm fragment to extract the
+   code address from the function descriptor. __udiv_qrnnd_16 is
+   assumed to be local and not to use the GOT, so loading r12 is
+   not needed. */
+#define udiv_qrnnd(q, r, n1, n0, d) \
+  do {									\
+    extern UWtype __udiv_qrnnd_16 (UWtype, UWtype)			\
+			__attribute__ ((visibility ("hidden")));	\
+    /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */	\
+    __asm__ (								\
+	"mov%M4	%4,r5\n"						\
+"	swap.w	%3,r4\n"						\
+"	swap.w	r5,r6\n"						\
+"	mov.l	@%5,r2\n"						\
+"	jsr	@r2\n"							\
+"	shll16	r6\n"							\
+"	swap.w	r4,r4\n"						\
+"	mov.l	@%5,r2\n"						\
+"	jsr	@r2\n"							\
+"	swap.w	r1,%0\n"						\
+"	or	r1,%0"							\
+	: "=r" (q), "=&z" (r)						\
+	: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16)		\
+	: "r1", "r2", "r4", "r5", "r6", "pr", "t");			\
+  } while (0)
+#else
 #define udiv_qrnnd(q, r, n1, n0, d) \
   do {									\
     extern UWtype __udiv_qrnnd_16 (UWtype, UWtype)			\
@@ -1121,6 +1148,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
 	: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16)		\
 	: "r1", "r2", "r4", "r5", "r6", "pr", "t");			\
   } while (0)
+#endif /* __FDPIC__  */
 
 #define UDIV_TIME 80