* configure.in(interix Alpha): Add.

	* configure.in(winnt Alpha): Use alpha32.h
	* configure.in(interix i386): Parallel Alpha32.
	* config/interix.h: Move common elements from i386-interix.h.
	* config/i386/i386-interix.h: Delete same.
	* config/alpha/alpha-interix.h: New file
	* config/alpha/alpha32.h: New file, part fron win-nt.h.
	* config/alpha/win-nt.h: Deletions (-> alpha32.h).
	* config/alpha/interix.h:  New file
	* config/alpha/alpha.md (interix): Comment.
	* config/alpha/xm-alpha-interix.h: New file.
        * config/alpha/t-interix: New file.
	* fixinc/mkfixinc.sh (interix/Alpha): Add.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@26424 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 252 insertions, 0 deletions

diff --git a/gcc/config/alpha/alpha-interix.h b/gcc/config/alpha/alpha-interix.h
new file mode 100644
index 00000000000..668fe9397af
--- /dev/null
+++ b/gcc/config/alpha/alpha-interix.h
@@ -0,0 +1,252 @@
+/* Definitions of target machine for GNU compiler, for DEC Alpha
+   running Windows/NT.
+   Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
+
+   Donn Terry, Softway Systems, Inc.
+   From code
+       Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
+
+This file is part of GNU CC.
+
+GNU CC 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.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* cpp handles __STDC__ */
+/* The three "Alpha" defines on the first such line are from the CLAXP spec */
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES " \
+  -D__INTERIX \
+  -D__OPENNT \
+  -D__Alpha_AXP -D_M_ALPHA -D_ALPHA_  \
+  -D__alpha -D__alpha__\
+  -D__stdcall= \
+  -D__cdecl= \
+  -Asystem(unix) -Asystem(interix) -Asystem(interix) -Acpu(alpha) -Amachine(alpha)"
+
+#undef CPP_SUBTARGET_SPEC
+#define CPP_SUBTARGET_SPEC "\
+-remap \
+%{posix:-D_POSIX_SOURCE} \
+-idirafter %$INTERIX_ROOT/usr/include"
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (alpha Interix)");
+
+/* alpha.h sets this, but it doesn't apply to us */
+#undef OBJECT_FORMAT_ECOFF
+#undef OBJECT_FORMAT_COFF
+
+/* LINK_SPEC */
+
+/* MD_STARTFILE_PREFIX */
+
+/* ASM_OUTPUT_LOOP_ALIGN; ASM_OUTPUT_ALIGN_CODE */
+
+/* Codegen macro overrides for NT internal conventions */
+
+/* the below are ecoff specific... we don't need them, so
+   undef them (they'll get a default later) */
+
+#undef PUT_SDB_BLOCK_START
+#undef PUT_SDB_BLOCK_END
+
+/* the following are OSF linker (not gld) specific... we don't want them */
+#undef HAS_INIT_SECTION
+#undef LD_INIT_SWITCH
+#undef LD_FINI_SWITCH
+
+
+/* The following are needed for C++, but also needed for profiling */
+
+/* Support const sections and the ctors and dtors sections for g++.
+   Note that there appears to be two different ways to support const
+   sections at the moment.  You can either #define the symbol
+   READONLY_DATA_SECTION (giving it some code which switches to the
+   readonly data section) or else you can #define the symbols
+   EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
+   SELECT_RTX_SECTION.  We do both here just to be on the safe side.  */
+
+#define USE_CONST_SECTION	1
+
+#define CONST_SECTION_ASM_OP	".rdata"
+
+/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
+
+   Note that we want to give these sections the SHF_WRITE attribute
+   because these sections will actually contain data (i.e. tables of
+   addresses of functions in the current root executable or shared library
+   file) and, in the case of a shared library, the relocatable addresses
+   will have to be properly resolved/relocated (and then written into) by
+   the dynamic linker when it actually attaches the given shared library
+   to the executing process.  (Note that on SVR4, you may wish to use the
+   `-z text' option to the ELF linker, when building a shared library, as
+   an additional check that you are doing everything right.  But if you do
+   use the `-z text' option when building a shared library, you will get
+   errors unless the .ctors and .dtors sections are marked as writable
+   via the SHF_WRITE attribute.)  */
+
+#define CTORS_SECTION_ASM_OP	".ctors"
+#define DTORS_SECTION_ASM_OP	".dtors"
+
+/* A default list of other sections which we might be "in" at any given
+   time.  For targets that use additional sections (e.g. .tdesc) you
+   should override this definition in the target-specific file which
+   includes this file.  */
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS in_const, in_ctors, in_dtors
+
+/* A default list of extra section function definitions.  For targets
+   that use additional sections (e.g. .tdesc) you should override this
+   definition in the target-specific file which includes this file.  */
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS						\
+  CONST_SECTION_FUNCTION						\
+  CTORS_SECTION_FUNCTION						\
+  DTORS_SECTION_FUNCTION
+
+#undef READONLY_DATA_SECTION
+#define READONLY_DATA_SECTION() const_section ()
+
+extern void text_section ();
+
+#define CONST_SECTION_FUNCTION						\
+void									\
+const_section ()							\
+{									\
+  if (!USE_CONST_SECTION)						\
+    text_section();							\
+  else if (in_section != in_const)					\
+    {									\
+      fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP);		\
+      in_section = in_const;						\
+    }									\
+}
+
+#define CTORS_SECTION_FUNCTION						\
+void									\
+ctors_section ()							\
+{									\
+  if (in_section != in_ctors)						\
+    {									\
+      fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP);		\
+      in_section = in_ctors;						\
+    }									\
+}
+
+#define DTORS_SECTION_FUNCTION						\
+void									\
+dtors_section ()							\
+{									\
+  if (in_section != in_dtors)						\
+    {									\
+      fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP);		\
+      in_section = in_dtors;						\
+    }									\
+}
+
+#define INT_ASM_OP		".long"
+
+/* A C statement (sans semicolon) to output an element in the table of
+   global constructors.  */
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)				\
+  do {									\
+    ctors_section ();							\
+    fprintf (FILE, "\t%s\t ", INT_ASM_OP);				\
+    assemble_name (FILE, NAME);						\
+    fprintf (FILE, "\n");						\
+  } while (0)
+
+/* A C statement (sans semicolon) to output an element in the table of
+   global destructors.  */
+#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)       				\
+  do {									\
+    dtors_section ();                   				\
+    fprintf (FILE, "\t%s\t ", INT_ASM_OP);				\
+    assemble_name (FILE, NAME);              				\
+    fprintf (FILE, "\n");						\
+  } while (0)
+
+/* The linker will take care of this, and having them causes problems with
+   ld -r (specifically -rU). */
+#define CTOR_LISTS_DEFINED_EXTERNALLY 1
+
+#define SET_ASM_OP	".set"
+/* Output a definition (implements alias) */
+#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)				\
+do									\
+{									\
+    fprintf ((FILE), "\t");						\
+    assemble_name (FILE, LABEL1);					\
+    fprintf (FILE, "=");						\
+    assemble_name (FILE, LABEL2);					\
+    fprintf (FILE, "\n");						\
+    }									\
+while (0)
+
+/* We use the defaults, so undef the null definitions */
+#undef PUT_SDB_FUNCTION_START
+#undef PUT_SDB_FUNCTION_END
+#undef PUT_SDB_EPILOGUE_END
+
+#define HOST_PTR_PRINTF "%p"
+#define HOST_PTR_AS_INT unsigned long
+
+#define PCC_BITFIELD_TYPE_MATTERS 1
+#define PCC_BITFIELD_TYPE_TEST TYPE_NATIVE(rec)
+#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
+
+/* DWARF2 Unwinding doesn't work with exception handling yet. */
+#undef DWARF2_UNWIND_INFO
+
+/* Don't assume anything about the header files. */
+#define NO_IMPLICIT_EXTERN_C
+
+/* The definition of this macro implies that there are cases where
+   a scalar value cannot be returned in registers.
+
+   On NT (according to the spec) anything except strings/array that fits
+   in 64 bits is returned in the registers (this appears to differ from
+   the rest of the Alpha family). */
+
+#undef RETURN_IN_MEMORY
+#define RETURN_IN_MEMORY(TYPE) \
+  (TREE_CODE (TYPE) == ARRAY_TYPE || int_size_in_bytes(TYPE) > 8)
+
+#define ASM_LOAD_ADDR(loc, reg)   "     lda " #reg "," #loc "\n" 
+
+#undef ASM_FILE_START
+#define ASM_FILE_START(FILE)					\
+{								\
+  alpha_write_verstamp (FILE);					\
+  fprintf (FILE, "\t.set noreorder\n");				\
+  fprintf (FILE, "\t.set volatile\n");                          \
+  fprintf (FILE, "\t.set noat\n");				\
+  fprintf (FILE, "\t.globl\t__fltused\n");			\
+  ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename);	\
+}
+
+/* The current Interix assembler (consistent with the DEC documentation)
+   uses a=b NOT .set a,b; .set is for assembler options. */
+#undef ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL
+#define ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL(FILE, SY, HI, LO)    	\
+ do {									\
+  assemble_name (FILE, SY);						\
+  fputc ('=', FILE);							\
+  assemble_name (FILE, HI);						\
+  fputc ('-', FILE);							\
+  assemble_name (FILE, LO);						\
+ } while (0)