Update.

2003-08-27  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/x86_64/fpu/bits/mathinline.h: Define __signbitf,
	__signbit, and __signbitl inline functions.

	* sysdeps/unix/sysv/linux/x86_64/__start_context.S: Use
	HIDDEN_JUMPTARGET instead of JUMPTARGET to call exit().

	* sysdeps/x86_64/bsd-_setjmp.S [PIC]: Jump to __GI___sigsetjmp.
	* sysdeps/x86_64/setjmp.S: Add libc_hidden_def for __sigsetjmp.

4 files changed, 34 insertions, 12 deletions

diff --git a/sysdeps/unix/sysv/linux/x86_64/__start_context.S b/sysdeps/unix/sysv/linux/x86_64/__start_context.S
index ad4502ca0a..a0ef3edcce 100644
--- a/sysdeps/unix/sysv/linux/x86_64/__start_context.S
+++ b/sysdeps/unix/sysv/linux/x86_64/__start_context.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
@@ -41,7 +41,7 @@ ENTRY(__start_context)
 	   exit the program with the return error value (-1).  */
 
 2:	movq	%rax,%rdi
-	call	JUMPTARGET(exit)
+	call	HIDDEN_JUMPTARGET(exit)
 	/* The 'exit' call should never return.  In case it does cause
 	   the process to terminate.  */
 	hlt
diff --git a/sysdeps/x86_64/bsd-_setjmp.S b/sysdeps/x86_64/bsd-_setjmp.S
index 478f788275..0f32bf81a9 100644
--- a/sysdeps/x86_64/bsd-_setjmp.S
+++ b/sysdeps/x86_64/bsd-_setjmp.S
@@ -1,5 +1,5 @@
 /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  x86-64 version.
-   Copyright (C) 1994-1997,2000,2001,2002 Free Software Foundation, Inc.
+   Copyright (C) 1994-1997,2000,2001,2002,2003 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
@@ -32,7 +32,7 @@ ENTRY (BP_SYM (_setjmp))
 	/* Set up arguments, we only need to set the second arg.  */
 	xorq %rsi, %rsi
 #ifdef	PIC
-	jmp C_SYMBOL_NAME (BP_SYM (__sigsetjmp))@PLT
+	jmp __GI___sigsetjmp
 #else
 	jmp BP_SYM (__sigsetjmp)
 #endif
diff --git a/sysdeps/x86_64/fpu/bits/mathinline.h b/sysdeps/x86_64/fpu/bits/mathinline.h
index 08e1c5b1da..c77412d28d 100644
--- a/sysdeps/x86_64/fpu/bits/mathinline.h
+++ b/sysdeps/x86_64/fpu/bits/mathinline.h
@@ -1,5 +1,5 @@
 /* Inline math functions for x86-64.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
@@ -31,10 +31,31 @@
 
 #if defined __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
 /* GCC has builtins that can be used.  */
-#  define isgreater(x, y) __builtin_isgreater (x, y)
-#  define isgreaterequal(x, y) __builtin_isgreaterequal (x, y)
-#  define isless(x, y) __builtin_isless (x, y)
-#  define islessequal(x, y) __builtin_islessequal (x, y)
-#  define islessgreater(x, y) __builtin_islessgreater (x, y)
-#  define isunordered(x, y) __builtin_isunordered (x, y)
+# define isgreater(x, y) __builtin_isgreater (x, y)
+# define isgreaterequal(x, y) __builtin_isgreaterequal (x, y)
+# define isless(x, y) __builtin_isless (x, y)
+# define islessequal(x, y) __builtin_islessequal (x, y)
+# define islessgreater(x, y) __builtin_islessgreater (x, y)
+# define isunordered(x, y) __builtin_isunordered (x, y)
+
+
+/* Test for negative number.  Used in the signbit() macro.  */
+__MATH_INLINE int
+__signbitf (float __x) __THROW
+{
+  __extension__ union { float __f; int __i; } __u = { __f: __x };
+  return __u.__i < 0;
+}
+__MATH_INLINE int
+__signbit (double __x) __THROW
+{
+  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
+  return __u.__i[1] < 0;
+}
+__MATH_INLINE int
+__signbitl (long double __x) __THROW
+{
+  __extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
+  return (__u.__i[2] & 0x8000) != 0;
+}
 #endif
diff --git a/sysdeps/x86_64/setjmp.S b/sysdeps/x86_64/setjmp.S
index e40381da31..811ab1d913 100644
--- a/sysdeps/x86_64/setjmp.S
+++ b/sysdeps/x86_64/setjmp.S
@@ -1,5 +1,5 @@
 /* setjmp for x86-64.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 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
@@ -43,3 +43,4 @@ ENTRY (__sigsetjmp)
 	jmp BP_SYM (__sigjmp_save)
 #endif
 END (BP_SYM (__sigsetjmp))
+hidden_def (__sigsetjmp)