freebsd-skq/contrib/gcc/config/freebsd.h
David E. O'Brien 2898537149 Turn DEFAULT_VTABLE_THUNKS back on. It caused problems with undefined symbols
in libstdc++.

Until I have a chance to look at what that problem is and to carefully consider
the upgrade issues of turning it back on at a later date if we leave it turned
off for any extended peroid of time.
1999-04-30 19:12:51 +00:00

90 lines
3.6 KiB
C

/* $Id: freebsd.h,v 1.11 1999/04/28 18:48:06 obrien Exp $ */
/* Base configuration file for all FreeBSD targets.
Copyright (C) 1999 Free Software Foundation, Inc.
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. */
/* Common FreeBSD configuration.
All FreeBSD architectures should include this file, which will specify
their commonalities.
Adapted from /usr/src/contrib/gcc/config/i386/freebsd.h &
egcs/gcc/config/i386/freebsd-elf.h version by David O'Brien */
/* Don't assume anything about the header files. */
#undef NO_IMPLICIT_EXTERN_C
#define NO_IMPLICIT_EXTERN_C
/* This defines which switch letters take arguments. On FreeBSD, most of
the normal cases (defined in gcc.c) apply, and we also have -h* and
-z* options (for the linker) (comming from svr4).
We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */
#define FBSD_SWITCH_TAKES_ARG(CHAR) \
(DEFAULT_SWITCH_TAKES_ARG (CHAR) \
|| (CHAR) == 'h' \
|| (CHAR) == 'z' /* ignored by ld */ \
|| (CHAR) == 'R')
#define FBSD_WORD_SWITCH_TAKES_ARG(STR) \
(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
|| !strcmp (STR, "rpath") || !strcmp (STR, "rpath-link") \
|| !strcmp (STR, "soname") || !strcmp (STR, "defsym") \
|| !strcmp (STR, "assert") || !strcmp (STR, "dynamic-linker"))
/* Place spaces around this string. We depend on string splicing to produce
the final CPP_PREDEFINES value. */
#define CPP_FBSD_PREDEFINES " -Dunix -D__FreeBSD__=4 -D__FreeBSD_cc_version=400002 -Asystem(unix) -Asystem(FreeBSD) "
/* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate
libc, depending on whether we're doing profiling.
(like the default, except no -lg, and no -p. */
#undef LIB_SPEC
#define LIB_SPEC "%{!shared:%{!pg:%{!pthread:%{!kthread:-lc}%{kthread:-lpthread -lc}}%{pthread:-lc_r}}%{pg:%{!pthread:%{!kthread:-lc_p}%{kthread:-lpthread_p -lc_p}}%{pthread:-lc_r_p}}}"
/* Let gcc locate this for us according to the -m rules */
#undef LIBGCC_SPEC
#define LIBGCC_SPEC \
"%{!shared:%{!pthread:%{!kthread:libgcc.a%s}}%{pthread|kthread:libgcc_r.a%s}}"
/* Code generation parameters. */
/* Don't default to pcc-struct-return, because gcc is the only compiler, and
we want to retain compatibility with older gcc versions.
(even though the svr4 ABI for the i386 says that records and unions are
returned in memory) */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0
/* Ensure we the configuration knows our system correctly so we can link with
libraries compiled with the native cc. */
#undef NO_DOLLAR_IN_LABEL
/* Use more efficient ``thunks'' to implement C++ vtables. XXX note that
this setting is claimed to have a few bugs by the EGCS maintainers. They
believe the bugs will be worked out in EGCS 1.2. */
#undef DEFAULT_VTABLE_THUNKS
#define DEFAULT_VTABLE_THUNKS 1
/* Miscellaneous parameters. */
/* Tell libgcc2.c that FreeBSD targets support atexit(3). */
#define HAVE_ATEXIT