Compile x86 rtld with -mno-sse -mno-mmx

ChangeLog

@@ -1,3 +1,15 @@
+2012-11-02  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* stdlib/Makefile (headers): Add bits/stdlib-float.h.
+	* stdlib/stdlib.h (atof): Moved to ...
+	* include/bits/stdlib-float.h: Here.  New file.
+	* stdlib/stdlib.h: Include <bits/stdlib-float.h>.
+	* stdlib/bits/stdlib-float.h: New file.
+	* sysdeps/x86/Makefile (CFLAGS-.os): Compile rtld routines with
+	-mno-sse -mno-mmx.
+	* sysdeps/x86_64/multiarch/strcasestr-nonascii.c: Include
+	<xmmintrin.h>.
+
 2012-11-02  Joseph Myers  <joseph@codesourcery.com>
 
 	* conform/conformtest.pl (@headers): Add fenv.h.

include/bits/stdlib-float.h

@@ -0,0 +1,4 @@
+/* No floating-point inline functions in rtld.  */
+#ifndef IS_IN_rtld
+# include <stdlib/bits/stdlib-float.h>
+#endif

nptl/ChangeLog

@@ -1,3 +1,9 @@
+2012-11-02  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/x86_64/tls.h: Don't include <xmmintrin.h>.
+	(__128bits): New struct typedef.
+	(tcbhead_t): Replace __m128 with __128bits.
+
 2012-10-30  Aurelien Jarno  <aurelien@aurel32.net>
 	    Joseph Myers  <joseph@codesourcery.com>
 

nptl/sysdeps/x86_64/tls.h

@@ -27,7 +27,14 @@
 # include <stdlib.h>
 # include <sysdep.h>
 # include <kernel-features.h>
-# include <xmmintrin.h>
+
+/* Replacement type for __m128 since this file is included by ld.so,
+   which is compiled with -mno-sse.  It must not change the alignment
+   of rtld_savespace_sse.  */
+typedef struct
+{
+  int i[4];
+} __128bits;
 
 
 /* Type for the dtv.  */
@@ -64,7 +71,7 @@ typedef struct
   void *__private_tm[5];
   long int __unused2;
   /* Have space for the post-AVX register size.  */
-  __m128 rtld_savespace_sse[8][4] __attribute__ ((aligned (32)));
+  __128bits rtld_savespace_sse[8][4] __attribute__ ((aligned (32)));
 
   void *__padding[8];
 } tcbhead_t;

stdlib/Makefile

@@ -20,7 +20,7 @@
 #
 subdir	:= stdlib
 
-headers	:= stdlib.h bits/stdlib.h bits/stdlib-ldbl.h			      \
+headers	:= stdlib.h bits/stdlib.h bits/stdlib-ldbl.h bits/stdlib-float.h      \
 	   monetary.h bits/monetary-ldbl.h				      \
 	   inttypes.h stdint.h bits/wordsize.h				      \
 	   errno.h sys/errno.h bits/errno.h				      \

stdlib/bits/stdlib-float.h

@@ -0,0 +1,31 @@
+/* Floating-point inline functions for stdlib.h.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _STDLIB_H
+# error "Never use <bits/stdlib-float.h> directly; include <stdlib.h> instead."
+#endif
+
+#ifdef __USE_EXTERN_INLINES
+__BEGIN_NAMESPACE_STD
+__extern_inline double
+__NTH (atof (const char *__nptr))
+{
+  return strtod (__nptr, (char **) NULL);
+}
+__END_NAMESPACE_STD
+#endif /* Optimizing and Inlining.  */

stdlib/stdlib.h

@@ -274,11 +274,6 @@ extern long double strtold_l (const char *__restrict __nptr,
 
 #ifdef __USE_EXTERN_INLINES
 __BEGIN_NAMESPACE_STD
-__extern_inline double
-__NTH (atof (const char *__nptr))
-{
-  return strtod (__nptr, (char **) NULL);
-}
 __extern_inline int
 __NTH (atoi (const char *__nptr))
 {
@@ -953,6 +948,7 @@ extern int getloadavg (double __loadavg[], int __nelem)
      __THROW __nonnull ((1));
 #endif
 
+#include <bits/stdlib-float.h>
 
 /* Define some macros helping to catch buffer overflows.  */
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function

sysdeps/x86/Makefile

@@ -0,0 +1,4 @@
+ifeq ($(subdir),elf)
+CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
+		   -mno-sse -mno-mmx)
+endif

sysdeps/x86_64/multiarch/strcasestr-nonascii.c

@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <ctype.h>
+#include <xmmintrin.h>
 
 
 /* Similar to __m128i_strloadu.  Convert to lower case for none-POSIX/C