config.gcc: Add i386/t-fprules-softfp64 and soft-fp/t-softfp to x86-darwin configurations.

2007-05-25  Eric Christopher  <echristo@apple.com>

	    * config.gcc: Add i386/t-fprules-softfp64 and soft-fp/t-softfp
	    to x86-darwin configurations.
	    * config/i386/t-darwin: Add softfp support.
	    * config/i386/t-darwin64: Ditto.
	    * config/i386/sfp-machine.h: If mach then don't use
	    aliasing, emit a stub to call.

From-SVN: r125085

gcc/ChangeLog

+2007-05-25  Eric Christopher  <echristo@apple.com>
+
+	* config.gcc: Add i386/t-fprules-softfp64 and soft-fp/t-softfp
+	to x86-darwin configurations.
+	* config/i386/t-darwin: Add softfp support.
+	* config/i386/t-darwin64: Ditto.
+	* config/i386/sfp-machine.h: If mach then don't use
+	aliasing, emit a stub to call.
+
 2007-05-25  Kazu Hirata  <kazu@codesourcery.com>
 
 	* cfglayout.c, cgraphunit.c, config/avr/avr.c, fold-const.c,

gcc/config.gcc

@@ -1052,11 +1052,12 @@ i[34567]86-*-darwin*)
 	# support.
 	with_arch=${with_arch:-nocona}
 	with_cpu=${with_cpu:-generic}
+	tmake_file="${tmake_file} i386/t-fprules-softfp64 soft-fp/t-softfp"
 	;;
 x86_64-*-darwin*)
 	with_arch=${with_arch:-nocona}
 	with_cpu=${with_cpu:-generic}
-	tmake_file="t-darwin ${cpu_type}/t-darwin64 t-slibgcc-darwin"
+	tmake_file="t-darwin ${cpu_type}/t-darwin64 t-slibgcc-darwin i386/t-fprules-softfp64 soft-fp/t-softfp"
 	tm_file="${tm_file} ${cpu_type}/darwin64.h"
 	;;
 i[34567]86-*-elf*)

gcc/config/i386/sfp-machine.h

@@ -127,6 +127,13 @@ struct fenv
 #define __BYTE_ORDER __LITTLE_ENDIAN
 
 /* Define ALIASNAME as a strong alias for NAME.  */
+#if defined __MACH__
+/* Mach-O doesn't support aliasing.  If these functions ever return
+   anything but int we need to revisit this... */
+#define strong_alias(name, aliasname) \
+  int aliasname (TFtype a, TFtype b) { return name(a, b); }
+#else
 # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
 # define _strong_alias(name, aliasname) \
   extern __typeof (name) aliasname __attribute__ ((alias (#name)));
+#endif

gcc/config/i386/t-darwin

@@ -2,3 +2,6 @@ MULTILIB_OPTIONS = m64
 MULTILIB_DIRNAMES = x86_64
 LIB2_SIDITI_CONV_FUNCS=yes
 LIB2FUNCS_EXTRA = $(srcdir)/config/darwin-64.c
+
+softfp_wrap_start := '\#ifdef __x86_64__'
+softfp_wrap_end := '\#endif'

gcc/config/i386/t-darwin64

 LIB2_SIDITI_CONV_FUNCS=yes
 LIB2FUNCS_EXTRA = $(srcdir)/config/darwin-64.c
+
+softfp_wrap_start := '\#ifdef __x86_64__'
+softfp_wrap_end := '\#endif'