* config/xtensa/elf.h, config/xtensa/linux.h

        (TARGET_OS_CPP_BUILTINS): Define.
        (CPP_PREDEFINES): Remove.
        * config/xtensa/xtensa.h (TARGET_CPU_CPP_BUILTINS): Define.
        (CPP_SPEC): Remove.

From-SVN: r55840

gcc/ChangeLog

+2002-07-29  Bob Wilson  <bob.wilson@acm.org>
+
+	* config/xtensa/elf.h, config/xtensa/linux.h
+	(TARGET_OS_CPP_BUILTINS): Define.
+	(CPP_PREDEFINES): Remove.
+	* config/xtensa/xtensa.h (TARGET_CPU_CPP_BUILTINS): Define.
+	(CPP_SPEC): Remove.
+
 2002-07-29  Zack Weinberg  <zack@codesourcery.com>
 
 	* gensupport.c: Include hashtab.h.

gcc/config/xtensa/elf.h

@@ -19,6 +19,11 @@ 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.  */
 
+#define TARGET_OS_CPP_BUILTINS()				\
+  do {								\
+    builtin_define ("__ELF__");					\
+  } while (0)
+
 /* Don't assume anything about the header files. */
 #define NO_IMPLICIT_EXTERN_C
 
@@ -74,9 +79,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
       %{rdynamic:-export-dynamic} \
     %{static:-static}}}"
 
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__XTENSA__ -D__ELF__ -Acpu=xtensa -Amachine=xtensa"
-
 /* Local compiler-generated symbols must have a prefix that the assembler
    understands.   By default, this is $, although some targets (e.g.,
    NetBSD-ELF) need to override this. */

gcc/config/xtensa/linux.h

@@ -19,6 +19,18 @@ 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.  */
 
+#define TARGET_OS_CPP_BUILTINS()				\
+  do {								\
+    builtin_define_std ("linux");				\
+    builtin_define_std ("unix");				\
+    builtin_define ("__ELF__");					\
+    builtin_define ("__gnu_linux__");				\
+    builtin_assert ("system=posix");				\
+    /* The GNU C++ standard library requires this.  */		\
+    if (c_language == clk_cplusplus)				\
+      builtin_define ("_GNU_SOURCE");				\
+  } while (0)
+
 #undef TARGET_VERSION
 #define TARGET_VERSION fputs (" (Xtensa GNU/Linux with ELF)", stderr);
 
@@ -49,11 +61,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
         %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
       %{static:-static}}}"
 
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES \
- "-D__XTENSA__ -D__ELF__ -Acpu=xtensa -Amachine=xtensa \
-  -Dunix -D__gnu_linux__ -Dlinux -Asystem=posix"
-
 #undef LOCAL_LABEL_PREFIX
 #define LOCAL_LABEL_PREFIX	"."
 

gcc/config/xtensa/xtensa.h

@@ -192,24 +192,21 @@ extern unsigned xtensa_current_frame_size;
 
 #define OVERRIDE_OPTIONS override_options ()
 
-#if XCHAL_HAVE_BE
-#define CPP_ENDIAN_SPEC "\
-  %{mlittle-endian:-D__XTENSA_EL__} \
-  %{!mlittle-endian:-D__XTENSA_EB__} "
-#else /* !XCHAL_HAVE_BE */
-#define CPP_ENDIAN_SPEC "\
-  %{mbig-endian:-D__XTENSA_EB__} \
-  %{!mbig-endian:-D__XTENSA_EL__} "
-#endif /* !XCHAL_HAVE_BE */
-
-#if XCHAL_HAVE_FP
-#define CPP_FLOAT_SPEC "%{msoft-float:-D__XTENSA_SOFT_FLOAT__}"
-#else
-#define CPP_FLOAT_SPEC "%{!mhard-float:-D__XTENSA_SOFT_FLOAT__}"
-#endif
-
-#undef CPP_SPEC
-#define CPP_SPEC CPP_ENDIAN_SPEC CPP_FLOAT_SPEC
+/* Target CPU builtins.  */
+#define TARGET_CPU_CPP_BUILTINS()					\
+  do {									\
+    builtin_assert ("cpu=xtensa");					\
+    builtin_assert ("machine=xtensa");					\
+    builtin_define ("__XTENSA__");					\
+    builtin_define (TARGET_BIG_ENDIAN ? "__XTENSA_EB__" : "__XTENSA_EL__"); \
+    if (!TARGET_HARD_FLOAT)						\
+      builtin_define ("__XTENSA_SOFT_FLOAT__");				\
+    if (flag_pic)							\
+      {									\
+        builtin_define ("__PIC__");					\
+        builtin_define ("__pic__");					\
+      }									\
+  } while (0)
 
 /* Define this to set the endianness to use in libgcc2.c, which can
    not depend on target_flags.  */