mirror of
git://gcc.gnu.org/git/gcc.git
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7437c8d449
2008-04-07 Aurelien Jarno <aurelien@aurel32.net>
* sysdep.c: add __GLIBC__ to the #ifdef preprocessor macros to
detect systems using GNU libc.
* gsocket.h: ditto.
* socket.c: ditto.
* adaint.c: ditto.
* link.c: ditto.
From-SVN: r133979
186 lines
9.2 KiB
C
186 lines
9.2 KiB
C
/****************************************************************************
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* *
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* GNAT COMPILER COMPONENTS *
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* *
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* L I N K *
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* *
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* C Implementation File *
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* *
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* Copyright (C) 1992-2007, Free Software Foundation, Inc. *
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* *
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* GNAT is free software; you can redistribute it and/or modify it under *
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* terms of the GNU General Public License as published by the Free Soft- *
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* ware Foundation; either version 2, or (at your option) any later ver- *
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* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
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* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
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* for more details. You should have received a copy of the GNU General *
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* Public License distributed with GNAT; see file COPYING. If not, write *
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* to the Free Software Foundation, 51 Franklin Street, Fifth Floor, *
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* Boston, MA 02110-1301, USA. *
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* *
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* As a special exception, if you link this file with other files to *
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* produce an executable, this file does not by itself cause the resulting *
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* executable to be covered by the GNU General Public License. This except- *
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* ion does not however invalidate any other reasons why the executable *
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* file might be covered by the GNU Public License. *
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* *
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* GNAT was originally developed by the GNAT team at New York University. *
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* Extensive contributions were provided by Ada Core Technologies Inc. *
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* *
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****************************************************************************/
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/* This file contains host-specific parameters describing the behavior */
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/* of the linker. It is used by gnatlink as well as all tools that use */
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/* Mlib. */
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#include <string.h>
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/* objlist_file_supported is set to 1 when the system linker allows */
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/* response file, that is a file that contains the list of object files. */
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/* This is useful on systems where the command line length is limited, */
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/* meaning that putting all the object files on the command line can */
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/* result in an unacceptable limit on the number of files. */
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/* object_file_option denotes the system dependent linker option which */
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/* allows object file names to be placed in a file and then passed to */
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/* the linker. object_file_option must be set if objlist_file_supported */
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/* is set to 1. */
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/* link_max is a conservative system specific threshold (in bytes) of the */
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/* argument length passed to the linker which will trigger a file being */
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/* used instead of the command line directly. If the argument length is */
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/* greater than this threshold, then an objlist_file will be generated */
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/* and object_file_option and objlist_file_supported must be set. If */
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/* objlist_file_supported is set to 0 (unsupported), then link_max is */
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/* set to 2**31-1 so that the limit will never be exceeded. */
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/* run_path_option is the system dependent linker option which specifies */
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/* the run time path to use when loading dynamic libraries. This should */
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/* be set to the null string if the system does not support dynamic */
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/* loading of libraries. */
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/* shared_libgnat_default gives the system dependent link method that */
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/* be used by default for linking libgnat (shared or static) */
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/* using_gnu_linker is set to 1 when the GNU linker is used under this */
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/* target. */
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/* RESPONSE FILE & GNU LINKER */
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/* -------------------------- */
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/* objlist_file_supported and using_gnu_link used together tell gnatlink */
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/* to generate a GNU style response file. Note that object_file_option */
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/* must be set to "" in this case, since no option is required for a */
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/* response file to be passed to GNU ld. With a GNU linker we use the */
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/* linker script to implement the response file feature. Any file passed */
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/* in the GNU ld command line with an unknown extension is supposed to be */
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/* a linker script. Each linker script augment the current configuration. */
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/* The format of such response file is as follow : */
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/* INPUT (obj1.p obj2.o ...) */
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#define SHARED 'H'
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#define STATIC 'T'
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#if defined (__osf__)
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const char *__gnat_object_file_option = "-Wl,-input,";
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const char *__gnat_run_path_option = "-Wl,-rpath,";
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int __gnat_link_max = 10000;
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unsigned char __gnat_objlist_file_supported = 1;
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char __gnat_shared_libgnat_default = STATIC;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (sgi)
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const char *__gnat_object_file_option = "-Wl,-objectlist,";
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const char *__gnat_run_path_option = "-Wl,-rpath,";
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int __gnat_link_max = 5000;
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unsigned char __gnat_objlist_file_supported = 1;
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char __gnat_shared_libgnat_default = STATIC;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (__WIN32)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "";
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int __gnat_link_max = 30000;
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unsigned char __gnat_objlist_file_supported = 1;
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char __gnat_shared_libgnat_default = STATIC;
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unsigned char __gnat_using_gnu_linker = 1;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (__hpux__)
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const char *__gnat_object_file_option = "-Wl,-c,";
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const char *__gnat_run_path_option = "-Wl,+b,";
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int __gnat_link_max = 5000;
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unsigned char __gnat_objlist_file_supported = 1;
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char __gnat_shared_libgnat_default = STATIC;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (_AIX)
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const char *__gnat_object_file_option = "-Wl,-f,";
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const char *__gnat_run_path_option = "";
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int __gnat_link_max = 15000;
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const unsigned char __gnat_objlist_file_supported = 1;
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char __gnat_shared_libgnat_default = STATIC;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (VMS)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 2147483647;
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unsigned char __gnat_objlist_file_supported = 0;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".olb";
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#elif defined (sun)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "-Wl,-R";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 2147483647;
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unsigned char __gnat_objlist_file_supported = 0;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (__FreeBSD__)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "-Wl,-rpath,";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 8192;
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unsigned char __gnat_objlist_file_supported = 1;
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unsigned char __gnat_using_gnu_linker = 1;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (linux) || defined(__GLIBC__)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "-Wl,-rpath,";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 8192;
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unsigned char __gnat_objlist_file_supported = 1;
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unsigned char __gnat_using_gnu_linker = 1;
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const char *__gnat_object_library_extension = ".a";
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#elif defined (__svr4__) && defined (i386)
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const char *__gnat_object_file_option = "";
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const char *__gnat_run_path_option = "";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 2147483647;
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unsigned char __gnat_objlist_file_supported = 0;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#else
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/* These are the default settings for all other systems. No response file
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is supported, the shared library default is STATIC. */
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const char *__gnat_run_path_option = "";
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const char *__gnat_object_file_option = "";
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char __gnat_shared_libgnat_default = STATIC;
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int __gnat_link_max = 2147483647;
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unsigned char __gnat_objlist_file_supported = 0;
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unsigned char __gnat_using_gnu_linker = 0;
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const char *__gnat_object_library_extension = ".a";
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#endif
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