* config/freebsd-spec.h: Add comment about what macros can be defined

[pf3gnuchains/gcc-fork.git] / gcc / config / freebsd-spec.h

diff --git a/gcc/config/freebsd-spec.h b/gcc/config/freebsd-spec.h
index 398a932..770a3d1 100644 (file)
--- a/gcc/config/freebsd-spec.h
+++ b/gcc/config/freebsd-spec.h
@@ -1,11 +1,12 @@
 /* Base configuration file for all FreeBSD targets.
-   Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2009, 2010, 2011,
+   2012 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
 any later version.
 
 GCC is distributed in the hope that it will be useful,
@@ -13,10 +14,14 @@ but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
 
 /* Common FreeBSD configuration. 
    All FreeBSD architectures should include this file, which will specify
@@ -29,38 +34,10 @@ Boston, MA 02111-1307, USA.  */
 /* In case we need to know.  */
 #define USING_CONFIG_FREEBSD_SPEC 1
 
-/* This defines which switch letters take arguments.  On FreeBSD, most of
-   the normal cases (defined in gcc.c) apply, and we also have -h* and
-   -z* options (for the linker) (coming from SVR4).
-   We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */
-
-#define FBSD_SWITCH_TAKES_ARG(CHAR)                                    \
-  (DEFAULT_SWITCH_TAKES_ARG (CHAR)                                     \
-    || (CHAR) == 'h'                                                   \
-    || (CHAR) == 'z' /* ignored by ld */                               \
-    || (CHAR) == 'R')
-
-/* This defines which multi-letter switches take arguments.  */
-
-#define FBSD_WORD_SWITCH_TAKES_ARG(STR)                                        \
-  (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                                 \
-   || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link")                \
-   || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym")           \
-   || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
-
 #define FBSD_TARGET_OS_CPP_BUILTINS()                                  \
   do                                                                   \
     {                                                                  \
-       if (FBSD_MAJOR == 6)                                            \
-         builtin_define ("__FreeBSD__=6");                             \
-       else if (FBSD_MAJOR == 5)                                       \
-         builtin_define ("__FreeBSD__=5");                             \
-       else if (FBSD_MAJOR == 4)                                       \
-         builtin_define ("__FreeBSD__=4");                             \
-       else if (FBSD_MAJOR == 3)                                       \
-         builtin_define ("__FreeBSD__=3");                             \
-       else                                                            \
-         builtin_define ("__FreeBSD__");                               \
+       builtin_define_with_int_value ("__FreeBSD__", FBSD_MAJOR);      \
        builtin_define_std ("unix");                                    \
        builtin_define ("__KPRINTF_ATTRIBUTE__");                       \
        builtin_assert ("system=unix");                                 \
@@ -78,7 +55,7 @@ Boston, MA 02111-1307, USA.  */
 
 #define FBSD_CPP_SPEC "                                                        \
   %(cpp_cpu)                                                           \
-  %{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__}                           \
+  %(cpp_arch)                                                          \
   %{posix:-D_POSIX_SOURCE}"
 
 /* Provide a STARTFILE_SPEC appropriate for FreeBSD.  Here we add
@@ -118,7 +95,7 @@ Boston, MA 02111-1307, USA.  */
 
 /* Provide a LIB_SPEC appropriate for FreeBSD.  Just select the appropriate
    libc, depending on whether we're doing profiling or need threads support.
-   (simular to the default, except no -lg, and no -p).  */
+   (similar to the default, except no -lg, and no -p).  */
 
 #ifdef FBSD_NO_THREADS
 #define FBSD_LIB_SPEC "                                                        \
@@ -129,13 +106,7 @@ is built with the --enable-threads configure-time option.}         \
     %{pg:  -lc_p}                                                      \
   }"
 #else
-#if FBSD_MAJOR >= 5
-#define FBSD_LIB_SPEC "                                                        \
-  %{!shared:                                                           \
-    %{!pg: %{pthread:-lpthread} -lc}                                   \
-    %{pg:  %{pthread:-lpthread_p} -lc_p}                               \
-  }"
-#else
+#if FBSD_MAJOR < 5
 #define FBSD_LIB_SPEC "                                                        \
   %{!shared:                                                           \
     %{!pg:                                                             \
@@ -145,6 +116,15 @@ is built with the --enable-threads configure-time option.}         \
       %{!pthread:-lc_p}                                                        \
       %{pthread:-lc_r_p}}                                              \
   }"
+#else
+#define FBSD_LIB_SPEC "                                                        \
+  %{!shared:                                                           \
+    %{!pg: %{pthread:-lpthread} -lc}                                   \
+    %{pg:  %{pthread:-lpthread_p} -lc_p}                               \
+  }                                                                    \
+  %{shared:                                                            \
+    %{pthread:-lpthread} -lc                                           \
+  }"
 #endif
 #endif
 
@@ -153,3 +133,7 @@ is built with the --enable-threads configure-time option.}          \
 #else
 #define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
 #endif
+
+/* NOTE: The freebsd-spec.h header is included also for various
+   non-FreeBSD powerpc targets, thus it should never define macros
+   other than FBSD_* prefixed ones, or USING_CONFIG_FREEBSD_SPEC.  */