linux.h (TARGET_OS_CPP_BUILTINS): Remove definition of _GNU_SOURCE.

        * config/xtensa/linux.h (TARGET_OS_CPP_BUILTINS): Remove definition of
        _GNU_SOURCE.  Add definitions of __PIC__ and __pic__.
        (SUBTARGET_CPP_SPEC): Define.
        (LIB_SPEC): Delete.
        * config/xtensa/xtensa-protos.h (xtensa_declare_object): Delete.
        * config/xtensa/xtensa.c (xtensa_declare_object): Delete.
        * config/xtensa/xtensa.h (CPP_SPEC, SUBTARGET_CPP_SPEC, EXTRA_SPECS):
        Define.
        (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Delete.
        (ASM_OUTPUT_ALIGNED_BSS, BSS_SECTION_ASM_OP): Define.

From-SVN: r66083

gcc/ChangeLog

+2003-04-25  Bob Wilson  <bob.wilson@acm.org>
+
+	* config/xtensa/linux.h (TARGET_OS_CPP_BUILTINS): Remove definition of
+	_GNU_SOURCE.  Add definitions of __PIC__ and __pic__.
+	(SUBTARGET_CPP_SPEC): Define.
+	(LIB_SPEC): Delete.
+	* config/xtensa/xtensa-protos.h (xtensa_declare_object): Delete.
+	* config/xtensa/xtensa.c (xtensa_declare_object): Delete.
+	* config/xtensa/xtensa.h (CPP_SPEC, SUBTARGET_CPP_SPEC, EXTRA_SPECS):
+	Define.
+	(ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Delete.
+	(ASM_OUTPUT_ALIGNED_BSS, BSS_SECTION_ASM_OP): Define.
+
 2003-04-25  H.J. Lu <hjl@gnu.org>
 
 	* config/ia64/ia64.c (ia64_expand_compare_and_swap): Add rmode

gcc/config/xtensa/linux.h

 /* Xtensa Linux configuration.
    Derived from the configuration for GCC for Intel i386 running Linux.
-   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -26,11 +26,13 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
     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");				\
+    builtin_define ("__PIC__");					\
+    builtin_define ("__pic__");					\
   } while (0)
 
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
 #undef TARGET_VERSION
 #define TARGET_VERSION fputs (" (Xtensa GNU/Linux with ELF)", stderr);
 
@@ -45,12 +47,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 #undef ASM_FINAL_SPEC
 
-#undef LIB_SPEC
-#define LIB_SPEC \
-  "%{shared: -lc} \
-   %{!shared: %{pthread:-lpthread} \
-   %{profile:-lc_p} %{!profile: -lc}}"
-
 #undef LINK_SPEC
 #define LINK_SPEC \
  "%{shared:-shared} \

gcc/config/xtensa/xtensa-protos.h

 /* Prototypes of target machine for GNU compiler for Xtensa.
-   Copyright 2001,2002 Free Software Foundation, Inc.
+   Copyright 2001,2002,2003 Free Software Foundation, Inc.
    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
 
 This file is part of GCC.
@@ -109,8 +109,6 @@ extern int xtensa_mem_offset PARAMS ((unsigned, enum machine_mode));
 extern void xtensa_setup_frame_addresses PARAMS ((void));
 extern int xtensa_dbx_register_number PARAMS ((int));
 extern void override_options PARAMS ((void));
-extern void xtensa_declare_object
-  PARAMS ((FILE *, char *, char *, char *, int));
 extern long compute_frame_size PARAMS ((int));
 extern int xtensa_frame_pointer_required PARAMS ((void));
 extern void xtensa_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));

gcc/config/xtensa/xtensa.c

 /* Subroutines for insn-output.c for Tensilica's Xtensa architecture.
-   Copyright 2001,2002 Free Software Foundation, Inc.
+   Copyright 2001,2002,2003 Free Software Foundation, Inc.
    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
 
 This file is part of GCC.
@@ -2086,22 +2086,6 @@ print_operand_address (file, addr)
 }
 
 
-/* Emit either a label, .comm, or .lcomm directive. */
-
-void
-xtensa_declare_object (file, name, init_string, final_string, size)
-     FILE *file;
-     char *name;
-     char *init_string;
-     char *final_string;
-     int size;
-{
-  fputs (init_string, file);		/* "", "\t.comm\t", or "\t.lcomm\t" */
-  assemble_name (file, name);
-  fprintf (file, final_string, size);	/* ":\n", ",%u\n", ",%u\n" */
-}
-
-
 void
 xtensa_output_literal (file, x, mode, labelno)
      FILE *file;

gcc/config/xtensa/xtensa.h

 /* Definitions of Tensilica's Xtensa target machine for GNU compiler.
-   Copyright 2001,2002 Free Software Foundation, Inc.
+   Copyright 2001,2002,2003 Free Software Foundation, Inc.
    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
 
 This file is part of GCC.
@@ -208,6 +208,15 @@ extern unsigned xtensa_current_frame_size;
       }									\
   } while (0)
 
+#define CPP_SPEC " %(subtarget_cpp_spec) "
+
+#ifndef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC ""
+#endif
+
+#define EXTRA_SPECS                                             \
+  { "subtarget_cpp_spec", SUBTARGET_CPP_SPEC },
+
 #ifdef __XTENSA_EB__
 #define LIBGCC2_WORDS_BIG_ENDIAN 1
 #else
@@ -1377,14 +1386,9 @@ typedef struct xtensa_args {
 /* Globalizing directive for a label.  */
 #define GLOBAL_ASM_OP "\t.global\t"
 
-/* This says how to define a global common symbol.  */
-#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)			\
-  xtensa_declare_object (STREAM, NAME, "\n\t.comm\t", ",%u\n", (SIZE))
-
-/* This says how to define a local common symbol (ie, not visible to
-   linker).  */
-#define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED)			\
-  xtensa_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE))
+/* Declare an uninitialized external linkage data object.  */
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+  asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 
 /* This is how to output an element of a case-vector that is absolute.  */
 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE)				\
@@ -1430,8 +1434,9 @@ typedef struct xtensa_args {
 
 
 /* Define the strings to put out for each section in the object file.  */
-#define TEXT_SECTION_ASM_OP	"\t.text"  	/* instructions */
-#define DATA_SECTION_ASM_OP	"\t.data" 	/* large data */
+#define TEXT_SECTION_ASM_OP	"\t.text"
+#define DATA_SECTION_ASM_OP	"\t.data"
+#define BSS_SECTION_ASM_OP	"\t.section\t.bss"
 
 
 /* Define output to appear before the constant pool.  If the function