gcc/

[pf3gnuchains/gcc-fork.git] / gcc / config / m68k / linux.h

diff --git a/gcc/config/m68k/linux.h b/gcc/config/m68k/linux.h
index 687e0b0..b1f9e97 100644 (file)
--- a/gcc/config/m68k/linux.h
+++ b/gcc/config/m68k/linux.h
@@ -1,6 +1,6 @@
 /* Definitions for Motorola 68k running Linux-based GNU systems with
    ELF format.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -17,24 +17,22 @@ 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.  */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 #undef TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (68k GNU/Linux with ELF)");
 
-/* 68020 with 68881 */
-#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
+/* Add %(asm_cpu_spec) to the svr4.h definition of ASM_SPEC.  */
+#undef ASM_SPEC
+#define ASM_SPEC \
+  "%(asm_cpu_spec) %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*}"
 
 /* for 68k machines this only needs to be TRUE for the 68000 */
 
 #undef STRICT_ALIGNMENT
 #define STRICT_ALIGNMENT 0
 
-#undef SUBTARGET_SWITCHES
-#define SUBTARGET_SWITCHES     {"ieee-fp", 0, \
-  N_("Use IEEE math for fp comparisons")},
-
 /* Here are four prefixes that are used by asm_fprintf to
    facilitate customization for alternate assembler syntaxes.
    Machines with no likelihood of an alternate syntax need not
@@ -90,20 +88,7 @@ Boston, MA 02111-1307, USA.  */
   while (0)
 
 #undef CPP_SPEC
-#if TARGET_DEFAULT & MASK_68881
-#define CPP_SPEC \
-  "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#else
-#define CPP_SPEC \
-  "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#endif
-
-/* We override the ASM_SPEC from svr4.h because we must pass -m68040 down
-   to the assembler.  */
-#undef ASM_SPEC
-#define ASM_SPEC \
-  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
-%{m68040} %{m68060:-m68040}"
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
 
 /* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support
    for the special GCC options -static and -shared, which allow us to
@@ -121,12 +106,14 @@ Boston, MA 02111-1307, USA.  */
 
 /* If ELF is the default format, we should not use /lib/elf.  */
 
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
 #undef LINK_SPEC
 #define LINK_SPEC "-m m68kelf %{shared} \
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      %{!dynamic-linker*:-dynamic-linker /lib/ld.so.1}} \
+      %{!dynamic-linker*:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
     %{static}}"
 
 /* For compatibility with linux/a.out */
@@ -222,11 +209,7 @@ Boston, MA 02111-1307, USA.  */
 
 #undef FUNCTION_VALUE
 #define FUNCTION_VALUE(VALTYPE, FUNC)                                  \
-  (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881                    \
-   ? gen_rtx_REG (TYPE_MODE (VALTYPE), 16)                             \
-   : (POINTER_TYPE_P (VALTYPE)                                         \
-      ? gen_rtx_REG (TYPE_MODE (VALTYPE), 8)                           \
-      : gen_rtx_REG (TYPE_MODE (VALTYPE), 0)))
+  m68k_function_value (VALTYPE, FUNC)
 
 /* For compatibility with the large body of existing code which does
    not always properly declare external functions returning pointer
@@ -249,10 +232,7 @@ do {                                                                       \
 
 #undef LIBCALL_VALUE
 #define LIBCALL_VALUE(MODE)                                            \
-  ((((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)         \
-    && TARGET_68881)                                                   \
-   ? gen_rtx_REG ((MODE), 16)                                          \
-   : gen_rtx_REG ((MODE), 0))
+  m68k_libcall_value (MODE)
 
 /* For m68k SVR4, structures are returned using the reentrant
    technique.  */