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/* Definitions for DEC Alpha/AXP running FreeBSD using the ELF format
Copyright (C) 2000 Free Software Foundation, Inc.
Contributed by BSDi, written by David O'Brien <obrien@FreeBSD.org>
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
"-D__ELF__ -Dunix -D__FreeBSD__ -Asystem(unix) -Asystem(bsd) -Asystem(FreeBSD)"
/* Provide a CPP_SPEC appropriate for FreeBSD/alpha. Besides the dealing with
the GCC option `-posix', and PIC issues as on all FreeBSD platforms, we must
deal with the Alpha's FP issues. */
#undef CPP_SPEC
#define CPP_SPEC "%(cpp_cpu) \
%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{mieee:-D_IEEE_FP} \
%{mieee-with-inexact:-D_IEEE_FP -D_IEEE_FP_INEXACT}"
#undef LINK_SPEC
#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax} \
%{p:%e`-p' not supported; use `-pg' and gprof(1)} \
%{Wl,*:%*} \
%{assert*} %{R*} %{rpath*} %{defsym*} \
%{shared:-Bshareable %{h*} %{soname*}} \
%{symbolic:-Bsymbolic} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /usr/libexec/ld-elf.so.1}} \
%{static:-Bstatic}}"
/* Provide an ASM_SPEC appropriate for a FreeBSD/Alpha target. This differs
from the generic FreeBSD ASM_SPEC in that no special handling of PIC is
necessary on the Alpha. */
/* Per Richard Henderson <rth@cygnus.com>, it is better to use the `.arch'
directive in the assembly file. alpha/elf.h gives us this in
"ASM_FILE_START".
#undef ASM_SPEC
#define ASM_SPEC " %| %{mcpu=*:-m%*}"
*/
/* XXX, if FreeBSD/Alpha grows a crti.o file, we can use the alpha/elf.h
definition. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
magical crtend.o file which provides part of the support for
getting C++ file-scope static object constructed before entering
`main'. */
/* XXX, if FreeBSD/Alpha grows a crtn.o file, we can use the alpha/elf.h
definition. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{!shared:crtend.o%s} %{shared:crtendS.o%s}"
/************************[ Target stuff ]***********************************/
/* Define the actual types of some ANSI-mandated types.
Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
c-common.c, and config/<arch>/<arch>.h. */
/* alpha.h gets this wrong for FreeBSD. We use the GCC defaults instead. */
#undef WCHAR_TYPE
#undef WCHAR_UNSIGNED
#define WCHAR_UNSIGNED 0
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
/* Handle cross-compilation on 32-bits machines (such as i386) for 64-bits
machines (Alpha in this case). */
#if defined(__i386__)
#undef HOST_BITS_PER_LONG
#define HOST_BITS_PER_LONG 32
#undef HOST_WIDE_INT
#define HOST_WIDE_INT long long
#undef HOST_BITS_PER_WIDE_INT
#define HOST_BITS_PER_WIDE_INT 64
#endif
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (FreeBSD/alpha ELF)");
#define TARGET_ELF 1
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_FP | MASK_FPREGS | MASK_GAS)
#undef HAS_INIT_SECTION
/* Output assembler code to FILE to increment profiler label # LABELNO
for profiling a function entry. Under FreeBSD/Alpha, the assembler does
nothing special with -pg. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO) \
fputs ("\tjsr $28,_mcount\n", (FILE))
/* Show that we need a GP when profiling. */
#undef TARGET_PROFILING_NEEDS_GP
#define TARGET_PROFILING_NEEDS_GP 1
/* This is the char to use for continuation (in case we need to turn
continuation back on). */
#undef DBX_CONTIN_CHAR
#define DBX_CONTIN_CHAR '?'
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