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configure.in (target frags): Add powerpc*-linux-gnulibc1.

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* configure.in (target frags): Add powerpc*-linux-gnulibc1.
        (stdio-lock): Similarly.

        * configure.in (target frags): Add alpha*-linux-gnulibc1.
        (pic frags): Its alpha*- not alpha-.
        (stdio-lock): Kill everything.  Add alpha*-linux-gnulibc1.
        * libio.h: Check __GLIBC_MINOR__ to find stdio-lock.h.  If not
        _IO_MTSAFE_IO & GLIBC, make sure the lock pointer is still there.
        * libioP.h: Check __GLIBC_MINOR__ to find libc-lock.h.

        * config/linuxaxp1-libc-lock.h: New file.
        * config/linuxaxp1-stdio-lock.h: New file.
        * config/linuxaxp1.mt: New file.

        * gen-params (va_list): Check for and use __gnuc_va_list.
        (NULL): Work around some linux kernel headers and redefine NULL.

From-SVN: r16769
This commit is contained in:
Richard Henderson 1997-11-26 15:54:30 -08:00 committed by Jeff Law
parent 8fbd2dc7cb
commit 20a2fbe20e
8 changed files with 224 additions and 33 deletions
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19
libio/ChangeLog
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@ -1,3 +1,22 @@
Wed Nov 26 16:08:50 1997 Richard Henderson (rth@cygnus.com)
* configure.in (target frags): Add powerpc*-linux-gnulibc1.
(stdio-lock): Similarly.
* configure.in (target frags): Add alpha*-linux-gnulibc1.
(pic frags): Its alpha*- not alpha-.
(stdio-lock): Kill everything. Add alpha*-linux-gnulibc1.
* libio.h: Check __GLIBC_MINOR__ to find stdio-lock.h. If not
_IO_MTSAFE_IO & GLIBC, make sure the lock pointer is still there.
* libioP.h: Check __GLIBC_MINOR__ to find libc-lock.h.
* config/linuxaxp1-libc-lock.h: New file.
* config/linuxaxp1-stdio-lock.h: New file.
* config/linuxaxp1.mt: New file.
* gen-params (va_list): Check for and use __gnuc_va_list.
(NULL): Work around some linux kernel headers and redefine NULL.
Tue Nov 18 09:53:58 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
* stdstrbufs.cc (DEF_STDFILE): Use STD_VTABLE.

112
libio/config/linuxaxp1-libc-lock.h Normal file
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@ -0,0 +1,112 @@
/* libc-internal interface for mutex locks. LinuxThreads version.
Copyright (C) 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _LIBC_LOCK_H
#define _LIBC_LOCK_H 1
#include <pthread.h>
#define __libc_lock_t pthread_mutex_t
/* Define a lock variable NAME with storage class CLASS. The lock must be
initialized with __libc_lock_init before it can be used (or define it
with __libc_lock_define_initialized, below). Use `extern' for CLASS to
declare a lock defined in another module. In public structure
definitions you must use a pointer to the lock structure (i.e., NAME
begins with a `*'), because its storage size will not be known outside
of libc. */
#define __libc_lock_define(CLASS,NAME) \
CLASS __libc_lock_t NAME;
/* Define an initialized lock variable NAME with storage class CLASS. */
#define __libc_lock_define_initialized(CLASS,NAME) \
CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
/* Initialize the named lock variable, leaving it in a consistent, unlocked
state. */
#define __libc_lock_init(NAME) \
(__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
/* Same as last but this time we initialize a recursive mutex. */
#define __libc_lock_init_recursive(NAME) \
do { \
if (__pthread_mutex_init != NULL) \
{ \
pthread_mutexattr_t __attr; \
__pthread_mutexattr_init (&__attr); \
__pthread_mutexattr_setkind_np (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
__pthread_mutex_init (&(NAME), &__attr); \
__pthread_mutexattr_destroy (&__attr); \
} \
} while (0);
/* Finalize the named lock variable, which must be locked. It cannot be
used again until __libc_lock_init is called again on it. This must be
called on a lock variable before the containing storage is reused. */
#define __libc_lock_fini(NAME) \
(__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
/* Lock the named lock variable. */
#define __libc_lock_lock(NAME) \
(__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
/* Try to lock the named lock variable. */
#define __libc_lock_trylock(NAME) \
(__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0);
/* Unlock the named lock variable. */
#define __libc_lock_unlock(NAME) \
(__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
/* Start critical region with cleanup. */
#define __libc_cleanup_region_start(FCT, ARG) \
{ struct _pthread_cleanup_buffer _buffer; \
if (_pthread_cleanup_push_defer != NULL) { \
_pthread_cleanup_push_defer (&_buffer, (FCT), (ARG)); \
}
/* End critical region with cleanup. */
#define __libc_cleanup_region_end(DOIT) \
if (_pthread_cleanup_push_defer != NULL) { \
_pthread_cleanup_pop_restore (&_buffer, (DOIT)); \
} \
}
/* Make the pthread functions weak so that we can elide them from
single-threaded processes. */
#pragma weak __pthread_mutex_init
#pragma weak __pthread_mutex_destroy
#pragma weak __pthread_mutex_lock
#pragma weak __pthread_mutex_trylock
#pragma weak __pthread_mutex_unlock
#pragma weak __pthread_mutexattr_init
#pragma weak __pthread_mutexattr_destroy
#pragma weak __pthread_mutexattr_setkind_np
#pragma weak __pthread_key_create
#pragma weak __pthread_setspecific
#pragma weak __pthread_getspecific
#pragma weak __pthread_initialize
#pragma weak _pthread_cleanup_push_defer
#pragma weak _pthread_cleanup_pop_restore
/* We need portable names for some functions. E.g., when they are
used as argument to __libc_cleanup_region_start. */
#define __libc_mutex_unlock __pthread_mutex_unlock
#endif /* libc-lock.h */

36
libio/config/linuxaxp1-stdio-lock.h Normal file
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@ -0,0 +1,36 @@
/* Thread package specific definitions of stream lock type.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <pthread.h>
typedef pthread_mutex_t _IO_lock_t;
/* We need recursive (counting) mutexes. */
#define _IO_lock_initializer PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
#define _IO_cleanup_region_start(_fct, _fp) \
__libc_cleanup_region_start (_fct, _fp)
#define _IO_cleanup_region_end(_doit) \
__libc_cleanup_region_end (_doit)
#define _IO_lock_init(_name) \
__libc_lock_init_recursive (_name)
#define _IO_lock_fini(_name) \
__libc_lock_fini_recursive (_name)

10
libio/config/linuxaxp1.mt Normal file
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@ -0,0 +1,10 @@
# We _do_ need a new _G_config.h
_G_CONFIG_H=_G_config.h
# And the two bits files.
all:
install: install-axp-mt-headers
install-axp-mt-headers:
$(INSTALL_DATA) libc-lock.h $(gxx_includedir)/libc-lock.h
$(INSTALL_DATA) stdio-lock.h $(gxx_includedir)/stdio-lock.h

41
libio/configure.in
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@ -16,6 +16,10 @@ frags=
case "${target}" in
*-hpux*) frags=hpux.mt ;;
alpha*-*-linux-gnulibc1)
frags="linux.mt linuxaxp1.mt mtsafe.mt" ;;
powerpc*-*-linux-gnulibc1)
frags="linux.mt linuxaxp1.mt mtsafe.mt" ;;
*-linux-gnulibc1)
frags=linuxlibc1.mt ;;
*-linux-gnu) frags="linux.mt mtsafe.mt" ;;
@ -36,34 +40,29 @@ if [ "${shared}" = "yes" ]; then
case "${target}" in
hppa*-*) frags="${frags} ../../config/mh-papic" ;;
i[3456]86-*) frags="${frags} ../../config/mh-x86pic" ;;
alpha-*-linux*)
alpha*-*-linux*)
frags="${frags} ../../config/mh-elfalphapic" ;;
*) frags="${frags} ../../config/mh-${target_cpu}pic" ;;
esac
fi
# Make a link for the correct stdio-lock.h file.
# Take care of header file lossage.
case "${target}" in
*-linux-gnu)
# We have a correct file in glibc but the libioP.h file is written
# with glibc 2.1 in mind which has the internals headers in special
# directory while glibc 2.0 has them in /usr/include. Create a wrapper
# if necessary.
(echo "#include <bits/libc-lock.h>" | ${CC-cc} -E -) >/dev/null 2>&1 ||
{
rm -fr bits
mkdir bits
echo "#include <libc-lock.h>" > bits/libc-lock.h
echo 'asm (".weak _pthread_cleanup_pop_restore");' >> bits/libc-lock.h
echo 'asm (".weak _pthread_cleanup_push_defer");' >> bits/libc-lock.h
echo "#include <stdio-lock.h>" > bits/stdio-lock.h
}
alpha*-*-linux-gnulibc1)
# For some reason stdio-lock.h is not installed on Red Hat systems.
# Further, libc-lock.h needs to define the pthreads stuff weak, and
# fails to do this for other than _LIBC. Install our own versions
# of these files.
cp ${srcdir}/config/linuxaxp1-libc-lock.h libc-lock.h
cp ${srcdir}/config/linuxaxp1-stdio-lock.h stdio-lock.h
;;
*)
rm -fr bits
mkdir bits
ln -s ${srcdir}/include/empty.h bits/stdio-lock.h
powerpc*-*-linux-gnulibc1)
# For some reason stdio-lock.h is not installed on Red Hat systems.
# Further, libc-lock.h needs to define the pthreads stuff weak, and
# fails to do this for other than _LIBC. Install our own versions
# of these files.
cp ${srcdir}/config/linuxaxp1-libc-lock.h libc-lock.h
cp ${srcdir}/config/linuxaxp1-stdio-lock.h stdio-lock.h
;;
esac

15
libio/gen-params
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@ -487,9 +487,18 @@ if ${CXX} -c dummy.C >/dev/null 2>&1 ; then
# Ok: We have something that works.
echo "typedef ${va_list-char* /* default */} ${macro_prefix}va_list;"
else
# No, it breaks. Indicate that <stdarg.h> must be included.
echo "#define ${macro_prefix}NEED_STDARG_H
#define ${macro_prefix}va_list va_list"
echo "#define ${macro_prefix}NEED_STDARG_H"
# Check and see if we have __gnuc_va_list, as we might set up define
# loops if we use va_list.
cat >dummy.C <<!EOF!
#include <stdarg.h>
long foo(__gnuc_va_list ap) { return va_arg(ap, long); }
!EOF!
if ${CXX} -c dummy.C >/dev/null 2>&1 ; then
echo "#define ${macro_prefix}va_list __gnuc_va_list"
else
echo "#define ${macro_prefix}va_list va_list"
fi
fi
cat >dummy.c <<!EOF!

18
libio/libio.h
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@ -150,23 +150,25 @@ struct _IO_jump_t; struct _IO_FILE;
/* Handle lock. */
#ifdef _IO_MTSAFE_IO
# if defined __GLIBC__ && __GLIBC__ >= 2
# include <bits/stdio-lock.h>
# if __GLIBC_MINOR__ > 0
# include <bits/stdio-lock.h>
# else
# include <stdio-lock.h>
# endif
# define _IO_LOCK_T _IO_lock_t *
# else
/*# include <comthread.h>*/
# endif
#else
/* XXX This will go away as soon as comthread is finished. */
# if defined __GLIBC__ && __GLIBC__ >= 2
# if defined(__GLIBC__) && __GLIBC__ >= 2
typedef void _IO_lock_t;
# define _IO_LOCK_T void *
# else
# ifdef __linux__
struct _IO_lock_t {
void *ptr;
short int field1;
short int field2;
};
struct _IO_lock_t { void *ptr; short int field1; short int field2; };
# define _IO_LOCK_T struct _IO_lock_t
# else
typedef void _IO_lock_t;
# endif
# endif
#endif

6
libio/libioP.h
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@ -28,7 +28,11 @@
# define __set_errno(Val) errno = (Val)
#endif
#if defined __GLIBC__ && __GLIBC__ >= 2
# include <bits/libc-lock.h>
# if __GLIBC_MINOR__ > 0
# include <bits/libc-lock.h>
# else
# include <libc-lock.h>
# endif
#else
/*# include <comthread.h>*/
#endif