2002-07-15 Jeff Johnston <jjohnstn@redhat.com>

        * libc/sys/linux/Makefile.am: Add new files.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/bp-sym.h: Moved to include directory.
        * libc/sys/linux/mmap.c: Add weak aliases: __mmap, __munmap, __mremap.
        * libc/sys/linux/inode.c: Set _LIBC to 1.
        * libc/sys/linux/mq_close.c: Ditto.
        * libc/sys/linux/mq_getattr.c: Ditto.
        * libc/sys/linux/mq_open.c: Ditto.
        * libc/sys/linux/mq_receive.c: Ditto.
        * libc/sys/linux/mq_send.c: Ditto.
        * libc/sys/linux/mq_setattr.c: Ditto.
        * libc/sys/linux/mq_unlink.c: Ditto.
        * libc/sys/linux/calloc.c: New file.
        * libc/sys/linux/callocr.c: Ditto.
        * libc/sys/linux/cfreer.c: Ditto.
        * libc/sys/linux/config.h: Ditto.
        * libc/sys/linux/free.c: Ditto.
        * libc/sys/linux/freer.c: Ditto.
        * libc/sys/linux/msize.c: Ditto.
        * libc/sys/linux/msizer.c: Ditto.
        * libc/sys/linux/mstats.c: Ditto.
        * libc/sys/linux/mtrim.c: Ditto.
        * libc/sys/linux/mtrimr.c: Ditto.
        * libc/sys/linux/pvallocr.c: Ditto.
        * libc/sys/linux/realloc.c: Ditto.
        * libc/sys/linux/reallocr.c: Ditto.
        * libc/sys/linux/thread-m.h: Ditto.
        * libc/sys/linux/vallocr.c: Ditto.
        * libc/sys/linux/bp-checks.h: Ditto.
        * libc/sys/linux/libc-symbols.h: Ditto.
        * libc/sys/linux/libc-tsd.h: Ditto.
        * libc/sys/linux/libintl.h: Ditto.
        * libc/sys/linux/malign.c: Ditto.
        * libc/sys/linux/malignr.c: Ditto.
        * libc/sys/linux/mallinfor.c: Ditto.
        * libc/sys/linux/malloc.c: Ditto.
        * libc/sys/linux/mallocr.c: Ditto.
        * libc/sys/linux/malloptr.c: Ditto.
        * libc/sys/linux/mallstatsr.c: Ditto.
        * libc/sys/linux/mcheck.c: Ditto.
        * libc/sys/linux/mhooks.h: Ditto.
        * libc/sys/linux/include/bp-sym.h: Ditto.
        * libc/sys/linux/include/malloc.h: Ditto.
        * libc/sys/linux/include/mcheck.h: Ditto.
        * libc/sys/linux/machine/i386/getpagesize.c: New file.
        * libc/sys/linux/machine/i386/Makefile.am: Add getpagesize.c.
        * libc/sys/linux/machine/i386/Makefile.in: Regenerated.
        * libc/sys/linux/machine/i386/sysdep.h: New file.
        * libc/sys/linux/machine/i386/weakalias.h: Add weak_function support.
        * libc/sys/linux/sys/dirent.h: Set _LIBC to 1.
	* libc/sys/linux/sys/types.h: Add new types.

1 files changed, 352 insertions, 0 deletions

diff --git a/newlib/libc/sys/linux/libc-symbols.h b/newlib/libc/sys/linux/libc-symbols.h
new file mode 100644
index 000000000..97b672643
--- /dev/null
+++ b/newlib/libc/sys/linux/libc-symbols.h
@@ -0,0 +1,352 @@
+/* Support macros for making weak and strong aliases for symbols,
+   and for using symbol sets and linker warnings with GNU ld.
+   Copyright (C) 1995,1996,1997,1998,2000,2001 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_SYMBOLS_H
+#define _LIBC_SYMBOLS_H	1
+
+/* This file's macros are included implicitly in the compilation of every
+   file in the C library by -imacros.
+
+   We include config.h which is generated by configure.
+   It should define for us the following symbols:
+
+   * HAVE_ASM_SET_DIRECTIVE if we have `.set B, A' instead of `A = B'.
+   * ASM_GLOBAL_DIRECTIVE with `.globl' or `.global'.
+   * HAVE_GNU_LD if using GNU ld, with support for weak symbols in a.out,
+   and for symbol set and warning messages extensions in a.out and ELF.
+   * HAVE_ELF if using ELF, which supports weak symbols using `.weak'.
+   * HAVE_ASM_WEAK_DIRECTIVE if we have weak symbols using `.weak'.
+   * HAVE_ASM_WEAKEXT_DIRECTIVE if we have weak symbols using `.weakext'.
+
+   */
+
+/* This is defined for the compilation of all C library code.  features.h
+   tests this to avoid inclusion of stubs.h while compiling the library,
+   before stubs.h has been generated.  Some library code that is shared
+   with other packages also tests this symbol to see if it is being
+   compiled as part of the C library.  We must define this before including
+   config.h, because it makes some definitions conditional on whether libc
+   itself is being compiled, or just some generator program.  */
+#define _LIBC	1
+
+/* Enable declarations of GNU extensions, since we are compiling them.  */
+#define _GNU_SOURCE	1
+/* And we also need the data for the reentrant functions.  */
+#define _REENTRANT	1
+
+#include <config.h>
+
+/* The symbols in all the user (non-_) macros are C symbols.
+   HAVE_GNU_LD without HAVE_ELF implies a.out.  */
+
+#if defined HAVE_ASM_WEAK_DIRECTIVE || defined HAVE_ASM_WEAKEXT_DIRECTIVE
+# define HAVE_WEAK_SYMBOLS
+#endif
+
+#ifndef __SYMBOL_PREFIX
+# ifdef NO_UNDERSCORES
+#  define __SYMBOL_PREFIX
+# else
+#  define __SYMBOL_PREFIX "_"
+# endif
+#endif
+
+#ifndef C_SYMBOL_NAME
+# ifdef NO_UNDERSCORES
+#  define C_SYMBOL_NAME(name) name
+# else
+#  define C_SYMBOL_NAME(name) _##name
+# endif
+#endif
+
+#ifndef ASM_LINE_SEP
+# define ASM_LINE_SEP ;
+#endif
+
+#ifndef C_SYMBOL_DOT_NAME
+# define C_SYMBOL_DOT_NAME(name) .##name
+#endif
+
+#ifndef __ASSEMBLER__
+/* GCC understands weak symbols and aliases; use its interface where
+   possible, instead of embedded assembly language.  */
+
+/* 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__))
+
+# ifdef HAVE_WEAK_SYMBOLS
+
+/* Define ALIASNAME as a weak alias for NAME.
+   If weak aliases are not available, this defines a strong alias.  */
+#  define weak_alias(name, aliasname) _weak_alias (name, aliasname)
+#  define _weak_alias(name, aliasname) \
+  extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)));
+
+/* Declare SYMBOL as weak undefined symbol (resolved to 0 if not defined).  */
+#  define weak_extern(symbol) _weak_extern (symbol)
+#  ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
+#   define _weak_extern(symbol) asm (".weakext " __SYMBOL_PREFIX #symbol);
+#  else
+#   define _weak_extern(symbol)    asm (".weak " __SYMBOL_PREFIX #symbol);
+#  endif
+
+# else
+
+#  define weak_alias(name, aliasname) strong_alias(name, aliasname)
+#  define weak_extern(symbol) /* Nothing. */
+
+# endif
+
+#else /* __ASSEMBLER__ */
+
+# ifdef HAVE_ASM_SET_DIRECTIVE
+#  define strong_alias(original, alias)		\
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP	\
+  .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original)
+# else
+#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
+#   define strong_alias(original, alias)	\
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP	\
+  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP	\
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP	\
+  C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original)
+#  else
+#   define strong_alias(original, alias)	\
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP	\
+  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
+#  endif
+# endif
+
+# ifdef HAVE_WEAK_SYMBOLS
+#  ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
+#   define weak_alias(original, alias)	\
+  .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original)
+#   define weak_extern(symbol)	\
+  .weakext C_SYMBOL_NAME (symbol)
+
+#  else /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */
+
+#   ifdef HAVE_ASM_GLOBAL_DOT_NAME
+#    define weak_alias(original, alias)	\
+  .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP			\
+  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP	\
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP	\
+  C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original)
+#   else
+#    define weak_alias(original, alias)	\
+  .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP	\
+  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
+#   endif
+
+#   define weak_extern(symbol)	\
+  .weak C_SYMBOL_NAME (symbol)
+
+#  endif /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */
+
+# else /* ! HAVE_WEAK_SYMBOLS */
+
+#  define weak_alias(original, alias) strong_alias(original, alias)
+#  define weak_extern(symbol) /* Nothing */
+# endif /* ! HAVE_WEAK_SYMBOLS */
+
+#endif /* __ASSEMBLER__ */
+
+/* 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.  */
+#ifndef HAVE_BUILTIN_EXPECT
+# define __builtin_expect(expr, val) (expr)
+#endif
+
+/* Determine the return address.  */
+#define RETURN_ADDRESS(nr) \
+  __builtin_extract_return_addr (__builtin_return_address (nr))
+
+/* When a reference to SYMBOL is encountered, the linker will emit a
+   warning message MSG.  */
+#ifdef HAVE_GNU_LD
+# ifdef HAVE_ELF
+
+/* We want the .gnu.warning.SYMBOL section to be unallocated.  */
+#  ifdef HAVE_ASM_PREVIOUS_DIRECTIVE
+#   define __make_section_unallocated(section_string)	\
+  asm (".section " section_string "\n\t.previous");
+#  elif defined HAVE_ASM_POPSECTION_DIRECTIVE
+#   define __make_section_unallocated(section_string)	\
+  asm (".pushsection " section_string "\n\t.popsection");
+#  else
+#   define __make_section_unallocated(section_string)
+#  endif
+
+/* 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.  */
+#  ifdef HAVE_SECTION_QUOTES
+#   define link_warning(symbol, msg) \
+  __make_section_unallocated (".gnu.warning." #symbol) \
+  static const char __evoke_link_warning_##symbol[]	\
+    __attribute__ ((section (".gnu.warning." #symbol "\"\n\t#\""))) = msg;
+#  else
+#   define link_warning(symbol, msg) \
+  __make_section_unallocated (".gnu.warning." #symbol) \
+  static const char __evoke_link_warning_##symbol[]	\
+    __attribute__ ((section (".gnu.warning." #symbol "\n\t#"))) = msg;
+#  endif
+# else /* Not ELF: a.out */
+#  ifdef HAVE_XCOFF
+/* XCOFF does not support .stabs.
+   The native aix linker will remove the .stab and .stabstr sections
+   The gnu linker will have a fatal error if there is a relocation for
+   symbol in the .stab section.  Silently disable this macro.  */
+#   define link_warning(symbol, msg) 
+#  else
+#   define link_warning(symbol, msg)		\
+     asm (".stabs \"" msg "\",30,0,0,0\n\t"	\
+          ".stabs \"" __SYMBOL_PREFIX #symbol "\",1,0,0,0\n");
+#  endif /* XCOFF */
+# endif
+#else
+/* We will never be heard; they will all die horribly.  */
+# define link_warning(symbol, msg)
+#endif
+
+/* A canned warning for sysdeps/stub functions.  */
+#define	stub_warning(name) \
+  link_warning (name, \
+		"warning: " #name " is not implemented and will always fail")
+
+/*
+
+*/
+
+#ifdef HAVE_GNU_LD
+
+/* Symbol set support macros.  */
+
+# ifdef HAVE_ELF
+
+/* Make SYMBOL, which is in the text segment, an element of SET.  */
+#  define text_set_element(set, symbol)	_elf_set_element(set, symbol)
+/* Make SYMBOL, which is in the data segment, an element of SET.  */
+#  define data_set_element(set, symbol)	_elf_set_element(set, symbol)
+/* Make SYMBOL, which is in the bss segment, an element of SET.  */
+#  define bss_set_element(set, symbol)	_elf_set_element(set, symbol)
+
+/* These are all done the same way in ELF.
+   There is a new section created for each set.  */
+#  ifdef SHARED
+/* When building a shared library, make the set section writable,
+   because it will need to be relocated at run time anyway.  */
+#   define _elf_set_element(set, symbol) \
+  static const void *__elf_set_##set##_element_##symbol##__ \
+    __attribute__ ((unused, section (#set))) = &(symbol)
+#  else
+#   define _elf_set_element(set, symbol) \
+  static const void *const __elf_set_##set##_element_##symbol##__ \
+    __attribute__ ((unused, section (#set))) = &(symbol)
+#  endif
+
+/* Define SET as a symbol set.  This may be required (it is in a.out) to
+   be able to use the set's contents.  */
+#  define symbol_set_define(set)	symbol_set_declare(set)
+
+/* Declare SET for use in this module, if defined in another module.  */
+#  define symbol_set_declare(set) \
+  extern void *const __start_##set __attribute__ ((__weak__));		\
+  extern void *const __stop_##set __attribute__ ((__weak__));		\
+  weak_extern (__start_##set) weak_extern (__stop_##set)
+
+/* Return a pointer (void *const *) to the first element of SET.  */
+#  define symbol_set_first_element(set)	(&__start_##set)
+
+/* Return true iff PTR (a void *const *) has been incremented
+   past the last element in SET.  */
+#  define symbol_set_end_p(set, ptr)	((ptr) >= &__stop_##set)
+
+# else	/* Not ELF: a.out.  */
+
+#  ifdef HAVE_XCOFF
+/* XCOFF does not support .stabs.
+   The native aix linker will remove the .stab and .stabstr sections
+   The gnu linker will have a fatal error if there is a relocation for
+   symbol in the .stab section.  Silently disable these macros.  */
+#   define text_set_element(set, symbol) 
+#   define data_set_element(set, symbol) 
+#   define bss_set_element(set, symbol)	 
+#  else
+#   define text_set_element(set, symbol)	\
+    asm (".stabs \"" __SYMBOL_PREFIX #set "\",23,0,0," __SYMBOL_PREFIX #symbol)
+#   define data_set_element(set, symbol)	\
+    asm (".stabs \"" __SYMBOL_PREFIX #set "\",25,0,0," __SYMBOL_PREFIX #symbol)
+#   define bss_set_element(set, symbol)	?error Must use initialized data.
+#  endif /* XCOFF */
+#  define symbol_set_define(set)	void *const (set)[1];
+#  define symbol_set_declare(set)	extern void *const (set)[1];
+
+#  define symbol_set_first_element(set)	&(set)[1]
+#  define symbol_set_end_p(set, ptr)	(*(ptr) == 0)
+
+# endif	/* ELF.  */
+#else
+/* We cannot do anything in generial.  */
+# define text_set_element(set, symbol) asm ("")
+# define data_set_element(set, symbol) asm ("")
+# define bss_set_element(set, symbol) asm ("")
+# define symbol_set_define(set)		void *const (set)[1];
+# define symbol_set_declare(set)	extern void *const (set)[1];
+
+# define symbol_set_first_element(set)	&(set)[1]
+# define symbol_set_end_p(set, ptr)	(*(ptr) == 0)
+#endif	/* Have GNU ld.  */
+
+#if DO_VERSIONING
+# define symbol_version(real, name, version) \
+     _symbol_version(real, name, version)
+# define default_symbol_version(real, name, version) \
+     _default_symbol_version(real, name, version)
+# ifdef __ASSEMBLER__
+#  define _symbol_version(real, name, version) \
+     .symver real, name##@##version
+#  define _default_symbol_version(real, name, version) \
+     .symver real, name##@##@##version
+# else
+#  define _symbol_version(real, name, version) \
+     __asm__ (".symver " #real "," #name "@" #version)
+#  define _default_symbol_version(real, name, version) \
+     __asm__ (".symver " #real "," #name "@@" #version)
+# endif
+#else
+# define symbol_version(real, name, version)
+# define default_symbol_version(real, name, version) \
+  strong_alias(real, name)
+#endif
+
+#endif /* libc-symbols.h */