From ac7e889a246f40c6621233774a14a32ce460c00e Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 21 Sep 2005 02:28:48 +0000
Subject: move misc internal definitions to a sep file to minimize differences
 with features.h from glibc

---
 include/libc-internal.h | 100 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 include/libc-internal.h

(limited to 'include/libc-internal.h')

diff --git a/include/libc-internal.h b/include/libc-internal.h
new file mode 100644
index 000000000..83eadc656
--- /dev/null
+++ b/include/libc-internal.h
@@ -0,0 +1,100 @@
+/* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 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 _LIBC_INTERNAL_H
+#define _LIBC_INTERNAL_H 1
+
+/* Some nice features only work properly with ELF */
+#if defined __HAVE_ELF__
+/* Define ALIASNAME as a weak alias for NAME. */
+#  define weak_alias(name, aliasname) _weak_alias (name, aliasname)
+#  define _weak_alias(name, aliasname) \
+      extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)));
+/* Define ALIASNAME as a strong alias for NAME.  */
+# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
+# define _strong_alias(name, aliasname) \
+  extern __typeof (name) aliasname __attribute__ ((alias (#name)));
+/* This comes between the return type and function name in
+ *    a function definition to make that definition weak.  */
+# define weak_function __attribute__ ((weak))
+# define weak_const_function __attribute__ ((weak, __const__))
+/* Tacking on "\n\t#" to the section name makes gcc put it's bogus
+ * section attributes on what looks like a comment to the assembler. */
+#  if defined(__cris__) 
+#    define link_warning(symbol, msg)
+#  else
+#    define link_warning(symbol, msg)					      \
+	asm (".section "  ".gnu.warning." #symbol  "\n\t.previous");	      \
+	    static const char __evoke_link_warning_##symbol[]		      \
+	    __attribute__ ((unused, section (".gnu.warning." #symbol "\n\t#"))) = msg;
+#endif
+#else /* !defined __HAVE_ELF__ */
+#  define strong_alias(name, aliasname) _strong_alias (name, aliasname)
+#  define weak_alias(name, aliasname) _strong_alias (name, aliasname)
+#  define _strong_alias(name, aliasname) \
+	__asm__(".global " __C_SYMBOL_PREFIX__ #aliasname "\n" \
+                ".set " __C_SYMBOL_PREFIX__ #aliasname "," __C_SYMBOL_PREFIX__ #name);
+#  define link_warning(symbol, msg) \
+	asm (".stabs \"" msg "\",30,0,0,0\n\t" \
+	      ".stabs \"" #symbol "\",1,0,0,0\n");
+#endif
+
+#ifndef weak_function
+/* If we do not have the __attribute__ ((weak)) syntax, there is no way we
+   can define functions as weak symbols.  The compiler will emit a `.globl'
+   directive for the function symbol, and a `.weak' directive in addition
+   will produce an error from the assembler.  */ 
+# define weak_function          /* empty */
+# define weak_const_function    /* empty */
+#endif
+
+/* On some platforms we can make internal function calls (i.e., calls of
+   functions not exported) a bit faster by using a different calling
+   convention.  */
+#ifndef internal_function
+# define internal_function      /* empty */
+#endif
+
+/* Prepare for the case that `__builtin_expect' is not available.  */
+#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
+#define __builtin_expect(x, expected_value) (x)
+#endif
+#ifndef likely
+# define likely(x)	__builtin_expect((!!(x)),1)
+#endif
+#ifndef unlikely
+# define unlikely(x)	__builtin_expect((!!(x)),0)
+#endif
+#ifndef __LINUX_COMPILER_H
+#define __LINUX_COMPILER_H
+#endif
+#ifndef __cast__
+#define __cast__(_to)
+#endif
+
+/* Arrange to hide uClibc internals */
+#if __GNUC_PREREQ (3, 3)
+# define attribute_hidden __attribute__ ((visibility ("hidden")))
+#else
+# define attribute_hidden
+#endif
+
+/* --- this is added to integrate linuxthreads */
+#define __USE_UNIX98            1
+
+#endif /* _LIBC_INTERNAL_H */
-- 
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