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* configure.in :Handle OpenBSD platforms.

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* configure: Rebuilt.
        * config/openbsd.h: New file.
        * config/xm-openbsd.h: New file.
        * config/t-openbsd: New file.
        * config/t-openbsd-thread: New file.

From-SVN: r25293
This commit is contained in:
Marc Espie 1999-02-18 19:04:30 +00:00 committed by Jeff Law
parent fab7445ab3
commit 1b4a979b01
7 changed files with 719 additions and 216 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
Thu Feb 18 19:59:37 1999 Marc Espie <espie@cvs.openbsd.org>
* configure.in :Handle OpenBSD platforms.
* configure: Rebuilt.
* config/openbsd.h: New file.
* config/xm-openbsd.h: New file.
* config/t-openbsd: New file.
* config/t-openbsd-thread: New file.
Thu Feb 18 18:47:09 1999 Jeffrey A Law (law@cygnus.com)
* function.c (assign_stack_temp_for_type): Round SIZE before calling

302
gcc/config/openbsd.h Normal file
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@ -0,0 +1,302 @@
/* Base configuration file for all OpenBSD 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 OpenBSD configuration.
All OpenBSD architectures include this file, which is intended as
a repository for common defines.
Some defines are common to all architectures, a few of them are
triggered by OBSD_* guards, so that we won't override architecture
defaults by mistakes.
OBSD_HAS_CORRECT_SPECS:
another mechanism provides correct specs already.
OBSD_NO_DYNAMIC_LIBRARIES:
no implementation of dynamic libraries.
OBSD_OLD_GAS:
older flavor of gas which needs help for PIC.
OBSD_HAS_DECLARE_FUNCTION_NAME, OBSD_HAS_DECLARE_FUNCTION_SIZE,
OBSD_HAS_DECLARE_OBJECT:
PIC support, FUNCTION_NAME/FUNCTION_SIZE are independent, whereas
the corresponding logic for OBJECTS is necessarily coupled.
There are also a few `default' defines such as ASM_WEAKEN_LABEL,
intended as common ground for arch that don't provide
anything suitable. */
/* OPENBSD_NATIVE is defined only when gcc is configured as part of
the OpenBSD source tree, specifically through Makefile.bsd-wrapper.
In such a case the include path can be trimmed as there is no
distinction between system includes and gcc includes. */
/* This configuration method, namely Makefile.bsd-wrapper and
OPENBSD_NATIVE is NOT recommended for building cross-compilers. */
#ifdef OPENBSD_NATIVE
#undef GCC_INCLUDE_DIR
#define GCC_INCLUDE_DIR "/usr/include"
/* The compiler is configured with ONLY the gcc/g++ standard headers. */
#undef INCLUDE_DEFAULTS
#define INCLUDE_DEFAULTS \
{ \
{ GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \
{ GCC_INCLUDE_DIR, "GCC", 0, 0 }, \
{ 0, 0, 0, 0 } \
}
/* Under OpenBSD, the normal location of the various *crt*.o files is the
/usr/lib directory. */
#define STANDARD_STARTFILE_PREFIX "/usr/lib/"
#endif
/* Controlling the compilation driver. */
/* CPP_SPEC appropriate for OpenBSD. We deal with -posix and -pthread.
XXX the way threads are handling currently is not very satisfying,
since all code must be compiled with -pthread to work.
This two-stage defines makes it easy to pick that for targets that
have subspecs. */
#define OBSD_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
/* LIB_SPEC appropriate for OpenBSD. Select the appropriate libc,
depending on profiling and threads. Basically,
-lc(_r)?(_p)?, select _r for threads, and _p for p or pg. */
#define OBSD_LIB_SPEC "-lc%{pthread:_r}%{p:_p}%{!p:%{pg:_p}}"
#ifndef OBSD_HAS_CORRECT_SPECS
#ifndef OBSD_NO_DYNAMIC_LIBRARIES
#undef SWITCH_TAKES_ARG
#define SWITCH_TAKES_ARG(CHAR) \
(DEFAULT_SWITCH_TAKES_ARG (CHAR) \
|| (CHAR) == 'R')
#endif
#undef CPP_SPEC
#define CPP_SPEC OBSD_CPP_SPEC
#ifdef OBSD_OLD_GAS
/* ASM_SPEC appropriate for OpenBSD. For some architectures, OpenBSD
still uses a special flavor of gas that needs to be told when generating
pic code. */
#undef ASM_SPEC
#define ASM_SPEC "%{fpic:-k} %{fPIC:-k -K} %|"
#else
/* Since we use gas, stdin -> - is a good idea, but we don't want to
override native specs just for that. */
#ifndef ASM_SPEC
#define ASM_SPEC "%|"
#endif
#endif
/* LINK_SPEC appropriate for OpenBSD. Support for GCC options
-static, -assert, and -nostdlib. */
#undef LINK_SPEC
#ifdef OBSD_NO_DYNAMIC_LIBRARIES
#define LINK_SPEC \
"%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{assert*}"
#else
#define LINK_SPEC \
"%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{R*} %{static:-Bstatic} %{assert*}"
#endif
#undef LIB_SPEC
#define LIB_SPEC OBSD_LIB_SPEC
#endif
/* Runtime target specification. */
/* You must redefine CPP_PREDEFINES in any arch specific file. */
#undef CPP_PREDEFINES
/* Implicit calls to library routines. */
/* Use memcpy and memset instead of bcopy and bzero. */
#define TARGET_MEM_FUNCTIONS
/* Miscellaneous parameters. */
/* Tell libgcc2.c that OpenBSD targets support atexit. */
#define HAVE_ATEXIT
/* Controlling debugging info: dbx options. */
/* Don't use the `xsTAG;' construct in DBX output; OpenBSD systems that
use DBX don't support it. */
#define DBX_NO_XREFS
/* Support of shared libraries, mostly imported from svr4.h through netbsd. */
/* Two differences from svr4.h:
- we use . - _func instead of a local label,
- we put extra spaces in expressions such as
.type _func , @function
This is more readable for a human being and confuses c++filt less. */
/* Assembler format: output and generation of labels. */
/* Define the strings used for the .type and .size directives.
These strings generally do not vary from one system running OpenBSD
to another, but if a given system needs to use different pseudo-op
names for these, they may be overridden in the arch specific file. */
/* OpenBSD assembler is hacked to have .type & .size support even in a.out
format object files. Functions size are supported but not activated
yet (look for GRACE_PERIOD_EXPIRED in gas/config/obj-aout.c). */
#undef TYPE_ASM_OP
#undef SIZE_ASM_OP
#define TYPE_ASM_OP ".type"
#define SIZE_ASM_OP ".size"
/* The following macro defines the format used to output the second
operand of the .type assembler directive. */
#undef TYPE_OPERAND_FMT
#define TYPE_OPERAND_FMT "@%s"
/* Provision if extra assembler code is needed to declare a function's result
(taken from svr4, not needed yet actually). */
#ifndef ASM_DECLARE_RESULT
#define ASM_DECLARE_RESULT(FILE, RESULT)
#endif
/* These macros generate the special .type and .size directives which
are used to set the corresponding fields of the linker symbol table
entries under OpenBSD. These macros also have to output the starting
labels for the relevant functions/objects. */
#ifndef OBSD_HAS_DECLARE_FUNCTION_NAME
/* Extra assembler code needed to declare a function properly.
Some assemblers may also need to also have something extra said
about the function's return value. We allow for that here. */
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do { \
fprintf (FILE, "\t%s\t", TYPE_ASM_OP); \
assemble_name (FILE, NAME); \
fputs (" , ", FILE); \
fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
putc ('\n', FILE); \
ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
} while (0)
#endif
#ifndef OBSD_HAS_DECLARE_FUNCTION_SIZE
/* Declare the size of a function. */
#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
do { \
if (!flag_inhibit_size_directive) \
{ \
fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
assemble_name (FILE, (FNAME)); \
fputs (" , . - ", FILE); \
assemble_name (FILE, (FNAME)); \
putc ('\n', FILE); \
} \
} while (0)
#endif
#ifndef OBSD_HAS_DECLARE_OBJECT
/* Extra assembler code needed to declare an object properly. */
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do { \
fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
assemble_name (FILE, NAME); \
fputs (" , ", FILE); \
fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
putc ('\n', FILE); \
size_directive_output = 0; \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
{ \
size_directive_output = 1; \
fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, " , %d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
} \
ASM_OUTPUT_LABEL (FILE, NAME); \
} while (0)
/* Output the size directive for a decl in rest_of_decl_compilation
in the case where we did not do so before the initializer.
Once we find the error_mark_node, we know that the value of
size_directive_output was set by ASM_DECLARE_OBJECT_NAME
when it was run for the same decl. */
#undef ASM_FINISH_DECLARE_OBJECT
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
do { \
char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
&& ! AT_END && TOP_LEVEL \
&& DECL_INITIAL (DECL) == error_mark_node \
&& !size_directive_output) \
{ \
size_directive_output = 1; \
fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
assemble_name (FILE, name); \
fprintf (FILE, " , %d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
} \
} while (0)
#endif
/* Those are `generic' ways to weaken/globalize a label. We shouldn't need
to override a processor specific definition. Hence, #ifndef ASM_*
In case overriding turns out to be needed, one can always #undef ASM_*
before including this file. */
/* Tell the assembler that a symbol is weak. */
/* Note: netbsd arm32 assembler needs a .globl here. An override may
be needed when/if we go for arm32 support. */
#ifndef ASM_WEAKEN_LABEL
#define ASM_WEAKEN_LABEL(FILE,NAME) \
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while (0)
#endif
/* Tell the assembler that a symbol is global. */
#ifndef ASM_GLOBALIZE_LABEL
#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
do { fputs ("\t.globl\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while(0)
#endif
/* Storage layout. */
/* We don't have to worry about binary compatibility with older C++ code,
but there is a big known bug with vtable thunks which has not been
fixed yet, so DON'T activate it by default. */
/* #define DEFAULT_VTABLE_THUNKS 1 */
/* Otherwise, since we support weak, gthr.h erroneously tries to use
#pragma weak. */
#define GTHREAD_USE_WEAK 0

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# Don't run fixproto
STMP_FIXPROTO =
# We don't need GCC's own include files but we do need lang specific ones.
USER_H = ${LANG_EXTRA_HEADERS}
INSTALL_ASSERT_H =

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gcc/config/t-openbsd-thread Normal file
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# This is currently needed to compile libgcc2 for threads support
TARGET_LIBGCC2_CFLAGS=-pthread
#T_CFLAGS=-pthread
#T_CPPFLAGS=-pthread

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gcc/config/xm-openbsd.h Normal file
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/* Configuration fragment for hosts running a version of OpenBSD.
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. */
/* This file gets included by all architectures. It holds stuff
that ought to be defined when hosting a compiler on an OpenBSD
machine, independently of the architecture. It's included by
${cpu_type}/xm-openbsd.h, not included directly. */
/* OpenBSD is trying to be POSIX-compliant, to the point of fixing
problems that may occur with gcc's interpretation. */
#undef POSIX
#define POSIX
/* Ensure we get gnu C's defaults. */
#ifdef __GNUC__
#define alloca __builtin_alloca
#endif

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gcc/configure.in
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@ -502,11 +502,23 @@ changequote([,])dnl
tm_file=${cpu_type}/${cpu_type}.h
xm_file=${cpu_type}/xm-${cpu_type}.h
# Set the default macros to define for GNU/Linux systems.
# Common parts for linux-gnu and openbsd systems
case $machine in
*-*-linux-gnu*)
xm_defines="HAVE_ATEXIT POSIX BSTRING"
;;
*-*-openbsd*)
tm_file=${cpu_type}/openbsd.h
# On OpenBSD systems, the headers are okay
fixincludes=Makefile.in
tmake_file="t-libc-ok t-openbsd"
# avoid surprises, always provide an xm-openbsd file
xm_file=${cpu_type}/xm-openbsd.h
if test x$enable_threads = xyes; then
thread_file='posix'
tmake_file="${tmake_file} t-openbsd-thread"
fi
;;
esac
case $machine in
@ -586,6 +598,12 @@ changequote([,])dnl
fixincludes=fixinc.wrap
gas=yes gnu_ld=yes
;;
alpha*-*-openbsd*)
# default x-alpha is only appropriate for dec-osf.
target_cpu_default="MASK_GAS"
xmake_file=none
;;
alpha*-dec-osf*)
if test x$stabs = xyes
@ -780,6 +798,10 @@ changequote([,])dnl
h8300-*-*)
float_format=i32
;;
hppa*-*-openbsd*)
target_cpu_default="MASK_SNAKE"
tmake_file=pa/t-openbsd
;;
hppa1.1-*-pro*)
tm_file="pa/pa-pro.h ${tm_file} pa/pa-pro-end.h libgloss.h"
xm_file=pa/xm-papro.h
@ -1107,16 +1129,22 @@ changequote([,])dnl
fixincludes=fixinc.wrap
tmake_file=i386/t-freebsd
;;
# We are hoping OpenBSD is still close enough to NetBSD that we can
# share the configurations.
changequote(,)dnl
i[34567]86-*-netbsd* | i[34567]86-*-openbsd*)
i[34567]86-*-netbsd*)
changequote([,])dnl
tm_file=i386/netbsd.h
# On NetBSD, the headers are already okay, except for math.h.
fixincludes=fixinc.wrap
tmake_file=t-netbsd
;;
changequote(,)dnl
i[34567]86-*-openbsd*)
changequote([,])dnl
# Remove when the math emulator is fixed
target_cpu_default="MASK_NO_FANCY_MATH_387"
# we need collect2 until our bug is fixed...
use_collect2=yes
;;
changequote(,)dnl
i[34567]86-*-coff*)
changequote([,])dnl
@ -1980,6 +2008,11 @@ changequote([,])dnl
tmake_file=t-netbsd
float_format=m68k
;;
m68k*-*-openbsd*)
float_format=m68k
# we need collect2 until our bug is fixed...
use_collect2=yes
;;
m68k-*-sysv3*) # Motorola m68k's running system V.3
xm_file="xm-alloca.h ${xm_file}"
xm_defines=USG
@ -2103,6 +2136,9 @@ changequote([,])dnl
tmake_file=m88k/t-luna
fi
;;
m88k-*-openbsd*)
tmake_file="${tmake_file} m88k/t-luna-gas"
;;
m88k-*-sysv3*)
tm_file=m88k/sysv3.h
extra_parts="crtbegin.o crtend.o"
@ -2311,6 +2347,16 @@ changequote([,])dnl
gas=yes
fixincludes=Makefile.in
;;
mips*el-*-openbsd*) # mips little endian
target_cpu_default="MASK_GAS|MASK_ABICALLS"
tm_file=mips/openbsd.h
xmake_file=none
;;
mips*-*-openbsd*) # mips big endian
target_cpu_default="MASK_GAS|MASK_ABICALLS"
tm_file=mips/openbsd-be.h
xmake_file=none
;;
mips-sony-bsd* | mips-sony-newsos*) # Sony NEWS 3600 or risc/news.
tm_file="mips/news4.h ${tm_file}"
if test x$stabs = xyes; then
@ -2661,6 +2707,9 @@ changequote([,])dnl
;;
pdp11-*-*)
;;
ns32k-*-openbsd*)
# Nothing special
;;
pyramid-*-*)
cpu_type=pyr
xmake_file=pyr/x-pyr
@ -2673,6 +2722,13 @@ changequote([,])dnl
xmake_file=romp/x-mach
use_collect2=yes
;;
romp-*-openbsd*)
# Nothing special
;;
powerpc-*-openbsd*)
tmake_file="${tmake_file} rs6000/t-rs6000 rs6000/t-openbsd"
xmake_file=none
;;
powerpc-*-beos*)
cpu_type=rs6000
tm_file=rs6000/beos.h
@ -2967,6 +3023,10 @@ changequote([,])dnl
fixincludes=fixinc.wrap
tmake_file=t-netbsd
;;
sparc-*-openbsd*)
# we need collect2 until our bug is fixed...
use_collect2=yes
;;
sparc-*-bsd*)
tm_file=sparc/bsd.h
;;
@ -3195,6 +3255,9 @@ changequote([,])dnl
tmake_file=t-netbsd
float_format=vax
;;
vax-*-openbsd*)
tmake_file="${tm_file} vax/t-openbsd"
;;
vax-*-ultrix*) # vaxen running ultrix
tm_file="${tm_file} vax/ultrix.h"
use_collect2=yes