+++ /dev/null
-/* Definitions of target machine for GNU compiler, for DEC Alpha
- running Windows/NT.
- Copyright (C) 1995, 1996, 1999, 2000 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 -Acpu=alpha -Amachine=alpha"
-
-#undef CPP_SUBTARGET_SPEC
-#define CPP_SUBTARGET_SPEC "\
--remap \
-%{posix:-D_POSIX_SOURCE} \
--isystem %$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 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 "\t.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 "\t.ctors"
-#define DTORS_SECTION_ASM_OP "\t.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
-
-/* 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
-
-#undef READONLY_DATA_SECTION
-#define READONLY_DATA_SECTION() const_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; \
- } \
-}
-
-/* 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 "\t.set\t"
-/* 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
-#define DWARF2_UNWIND_INFO 0
-
-/* 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)
projects / msp430-gcc.git / blobdiff