(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

5 files changed, 53 insertions, 182 deletions

diff --git a/sysdeps/x86_64/bits/byteswap.h b/sysdeps/x86_64/bits/byteswap.h
index ec2b17889d..e1c861c75f 100644
--- a/sysdeps/x86_64/bits/byteswap.h
+++ b/sysdeps/x86_64/bits/byteswap.h
@@ -1,6 +1,5 @@
 /* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000, 2002, 2003, 2007
-   Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2002, 2003 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
@@ -60,9 +59,7 @@
 # if __WORDSIZE == 64 || (defined __i486__ || defined __pentium__	      \
 			  || defined __pentiumpro__ || defined __pentium4__   \
 			  || defined __k8__ || defined __athlon__	      \
-			  || defined __k6__ || defined __nocona__	      \
-			  || defined __core2__ || defined __geode__	      \
-			  || defined __amdfam10__)
+			  || defined __k6__)
 /* To swap the bytes in a word the i486 processors and up provide the
    `bswap' opcode.  On i386 we have to use three instructions.  */
 #  define __bswap_32(x) \
diff --git a/sysdeps/x86_64/bits/link.h b/sysdeps/x86_64/bits/link.h
index 2890c2d88d..8ea7157156 100644
--- a/sysdeps/x86_64/bits/link.h
+++ b/sysdeps/x86_64/bits/link.h
@@ -1,117 +1,14 @@
-/* Copyright (C) 2004, 2005 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef	_LINK_H
-# error "Never include <bits/link.h> directly; use <link.h> instead."
-#endif
-
-
-#if __ELF_NATIVE_CLASS == 32
-/* Registers for entry into PLT on IA-32.  */
-typedef struct La_i86_regs
-{
-  uint32_t lr_edx;
-  uint32_t lr_ecx;
-  uint32_t lr_eax;
-  uint32_t lr_ebp;
-  uint32_t lr_esp;
-} La_i86_regs;
-
-/* Return values for calls from PLT on IA-32.  */
-typedef struct La_i86_retval
-{
-  uint32_t lrv_eax;
-  uint32_t lrv_edx;
-  long double lrv_st0;
-  long double lrv_st1;
-} La_i86_retval;
-
-
-__BEGIN_DECLS
-
-extern Elf32_Addr la_i86_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
-				       uintptr_t *__refcook,
-				       uintptr_t *__defcook,
-				       La_i86_regs *__regs,
-				       unsigned int *__flags,
-				       const char *__symname,
-				       long int *__framesizep);
-extern unsigned int la_i86_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
-					uintptr_t *__refcook,
-					uintptr_t *__defcook,
-					const La_i86_regs *__inregs,
-					La_i86_retval *__outregs,
-					const char *symname);
-
-__END_DECLS
+#if __WORDSIZE == 64
+struct link_map_machine
+  {
+    Elf64_Addr plt; /* Address of .plt + 0x16 */
+    Elf64_Addr gotplt; /* Address of .got + 0x18 */
+  };
 
 #else
-
-/* Registers for entry into PLT on x86-64.  */
-# if __GNUC_PREREQ (4,0)
-typedef float La_x86_64_xmm __attribute__ ((__vector_size__ (16)));
-# else
-typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__)));
-# endif
-
-typedef struct La_x86_64_regs
-{
-  uint64_t lr_rdx;
-  uint64_t lr_r8;
-  uint64_t lr_r9;
-  uint64_t lr_rcx;
-  uint64_t lr_rsi;
-  uint64_t lr_rdi;
-  uint64_t lr_rbp;
-  uint64_t lr_rsp;
-  La_x86_64_xmm lr_xmm[8];
-} La_x86_64_regs;
-
-/* Return values for calls from PLT on x86-64.  */
-typedef struct La_x86_64_retval
-{
-  uint64_t lrv_rax;
-  uint64_t lrv_rdx;
-  La_x86_64_xmm lrv_xmm0;
-  La_x86_64_xmm lrv_xmm1;
-  long double lrv_st0;
-  long double lrv_st1;
-} La_x86_64_retval;
-
-
-__BEGIN_DECLS
-
-extern Elf64_Addr la_x86_64_gnu_pltenter (Elf64_Sym *__sym,
-					  unsigned int __ndx,
-					  uintptr_t *__refcook,
-					  uintptr_t *__defcook,
-					  La_x86_64_regs *__regs,
-					  unsigned int *__flags,
-					  const char *__symname,
-					  long int *__framesizep);
-extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym,
-					   unsigned int __ndx,
-					   uintptr_t *__refcook,
-					   uintptr_t *__defcook,
-					   const La_x86_64_regs *__inregs,
-					   La_x86_64_retval *__outregs,
-					   const char *symname);
-
-__END_DECLS
-
+struct link_map_machine
+  {
+    Elf32_Addr plt; /* Address of .plt + 0x16 */
+    Elf32_Addr gotplt; /* Address of .got + 0x0c */
+  };
 #endif
diff --git a/sysdeps/x86_64/bits/linkmap.h b/sysdeps/x86_64/bits/linkmap.h
deleted file mode 100644
index 8ea7157156..0000000000
--- a/sysdeps/x86_64/bits/linkmap.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#if __WORDSIZE == 64
-struct link_map_machine
-  {
-    Elf64_Addr plt; /* Address of .plt + 0x16 */
-    Elf64_Addr gotplt; /* Address of .got + 0x18 */
-  };
-
-#else
-struct link_map_machine
-  {
-    Elf32_Addr plt; /* Address of .plt + 0x16 */
-    Elf32_Addr gotplt; /* Address of .got + 0x0c */
-  };
-#endif
diff --git a/sysdeps/x86_64/bits/mathdef.h b/sysdeps/x86_64/bits/mathdef.h
deleted file mode 100644
index 7b16189590..0000000000
--- a/sysdeps/x86_64/bits/mathdef.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Copyright (C) 2001, 2004 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#if !defined _MATH_H && !defined _COMPLEX_H
-# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
-#endif
-
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
-# define _MATH_H_MATHDEF	1
-
-# include <bits/wordsize.h>
-
-# if __WORDSIZE == 64 || (defined __FLT_EVAL_METHOD__ && __FLT_EVAL_METHOD__ == 0)
-/* The x86-64 architecture computes values with the precission of the
-   used type.  Similarly for -m32 -mfpmath=sse.  */
-typedef float float_t;		/* `float' expressions are evaluated as `float'.  */
-typedef double double_t;	/* `double' expressions are evaluated
-				   as `double'.  */
-# else
-/* The ix87 FPUs evaluate all values in the 80 bit floating-point format
-   which is also available for the user as `long double'.  Therefore we
-   define:  */
-typedef long double float_t;	/* `float' expressions are evaluated as
-				   `long double'.  */
-typedef long double double_t;	/* `double' expressions are evaluated as
-				   `long double'.  */
-# endif
-
-/* The values returned by `ilogb' for 0 and NaN respectively.  */
-# define FP_ILOGB0	(-2147483647 - 1)
-# define FP_ILOGBNAN	(-2147483647 - 1)
-
-#endif	/* ISO C99 */
diff --git a/sysdeps/x86_64/bits/setjmp.h b/sysdeps/x86_64/bits/setjmp.h
index c9b98b2e3b..96646efdda 100644
--- a/sysdeps/x86_64/bits/setjmp.h
+++ b/sysdeps/x86_64/bits/setjmp.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001,2002,2003,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003 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
@@ -26,6 +26,36 @@
 
 #include <bits/wordsize.h>
 
+#if __WORDSIZE == 64
+
+/* We only need to save callee-saved registers plus stackpointer and
+   program counter.  */
+# if defined __USE_MISC || defined _ASM
+#  define JB_RBX	0
+#  define JB_RBP	1
+#  define JB_R12	2
+#  define JB_R13	3
+#  define JB_R14	4
+#  define JB_R15	5
+#  define JB_RSP	6
+#  define JB_PC	7
+#  define JB_SIZE (8*8)
+# endif
+
+#else
+
+# if defined __USE_MISC || defined _ASM
+#  define JB_BX	0
+#  define JB_SI	1
+#  define JB_DI	2
+#  define JB_BP	3
+#  define JB_SP	4
+#  define JB_PC	5
+#  define JB_SIZE 24
+# endif
+
+#endif
+
 #ifndef _ASM
 
 # if __WORDSIZE == 64
@@ -34,6 +64,15 @@ typedef long int __jmp_buf[8];
 typedef int __jmp_buf[6];
 # endif
 
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+# if __WORDSIZE == 64
+#  define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf)[JB_RSP])
+# else
+#  define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf)[JB_SP])
+# endif
 #endif
 
 #endif  /* bits/setjmp.h */