* config/xtensa/elf.h: New file.

        * config/xtensa/lib1funcs.asm: New file.
        * config/xtensa/lib2funcs.S: New file.
        * config/xtensa/linux.h: New file.
        * config/xtensa/t-xtensa: New file.
        * config/xtensa/xtensa-config.h: New file.
        * config/xtensa/xtensa-protos.h: New file.
        * config/xtensa/xtensa.c: New file.
        * config/xtensa/xtensa.h: New file.
        * config/xtensa/xtensa.md: New file.
        * config.gcc (xtensa-*-elf*): New target.
        (xtensa-*-linux*): New target.
        * cse.c (canon_hash): Compare rtx pointers instead of register
        numbers.  This is required for the Xtensa port.
        * integrate.c (copy_insn_list): Handle case where the static
        chain is in memory and the memory address has to be copied to
        a register.
        * doc/invoke.texi (Option Summary): Add Xtensa options.
        (Xtensa Options): New node.
        * doc/md.texi (Machine Constraints): Add Xtensa machine constraints.
        * gcc.c-torture/compile/20001226-1.x: xfail for Xtensa.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49155 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 138 insertions, 0 deletions

diff --git a/gcc/config/xtensa/elf.h b/gcc/config/xtensa/elf.h
new file mode 100644
index 00000000000..dea1e5f8414
--- /dev/null
+++ b/gcc/config/xtensa/elf.h
@@ -0,0 +1,138 @@
+/* Xtensa/Elf configuration.
+   Derived from the configuration for GCC for Intel i386 running Linux.
+   Copyright (C) 2001 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) any later
+version.
+
+GCC is distributed in the hope that it will be useful, 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.  */
+
+/* Don't assume anything about the header files. */
+#define NO_IMPLICIT_EXTERN_C
+
+#undef ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+#undef ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+#undef MD_EXEC_PREFIX
+#undef MD_STARTFILE_PREFIX
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fputs (" (Xtensa/ELF)", stderr);
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#undef ASM_SPEC
+#define ASM_SPEC "%{v} %{mno-density:--no-density} \
+                  %{mtext-section-literals:--text-section-literals} \
+                  %{mno-text-section-literals:--no-text-section-literals} \
+		  %{mtarget-align:--target-align} \
+		  %{mno-target-align:--no-target-align} \
+		  %{mlongcalls:--longcalls} \
+		  %{mno-longcalls:--no-longcalls}"
+
+#undef ASM_FINAL_SPEC
+
+#undef LIB_SPEC
+#define LIB_SPEC "-lc -lsim -lc -lhandlers-sim"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "crt1-sim%O%s crti%O%s crtbegin%O%s _vectors%O%s"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend%O%s crtn%O%s"  
+
+#undef LINK_SPEC
+#define LINK_SPEC \
+ "%{shared:-shared} \
+  %{!shared: \
+    %{!static: \
+      %{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. */
+
+#ifndef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX	"."
+#endif
+
+/* By default, external symbols do not have an underscore prepended. */
+
+#ifndef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX	""
+#endif
+
+/* Define this macro if the assembler does not accept the character
+   "." in label names.  By default constructors and destructors in G++
+   have names that use ".".  If this macro is defined, these names
+   are rewritten to avoid ".". */
+#define NO_DOT_IN_LABEL
+
+/* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
+   doesn't allow $ in symbol names.  */
+#undef NO_DOLLAR_IN_LABEL
+
+/* Don't switch sections in the middle of a literal pool! */
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE,RTX,ALIGN)
+  
+/* Do not force "-fpic" for this target.  */
+#define XTENSA_ALWAYS_PIC 0
+
+/* Redefine the standard ELF version of ASM_DECLARE_FUNCTION_SIZE to
+   allow adding the ".end literal_prefix" directive at the end of the
+   function.  */
+#undef ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)		\
+  do								\
+    {								\
+      if (!flag_inhibit_size_directive)				\
+	{							\
+	  char label[256];					\
+	  static int labelno;					\
+	  							\
+	  labelno++;						\
+	  							\
+	  ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno);	\
+	  ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno);	\
+	  							\
+	  fprintf (FILE, "%s", SIZE_ASM_OP);			\
+	  assemble_name (FILE, (FNAME));			\
+	  fprintf (FILE, ",");					\
+	  assemble_name (FILE, label);				\
+	  fprintf (FILE, "-");					\
+	  assemble_name (FILE, (FNAME));			\
+	  putc ('\n', FILE);					\
+	}							\
+      XTENSA_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL);		\
+    }								\
+  while (0)