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Import Upstream version 1.3

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Copyright © 2013 Keith Packard
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting documentation, and
that the name of the copyright holders not be used in advertising or
publicity pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no representations
about the suitability of this software for any purpose. It is provided "as
is" without express or implied warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
OF THIS SOFTWARE.

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commit f38b2e73071ba516127f8f5ae47f48df58dc9d53
Author: Matt Turner <mattst88@gmail.com>
Date: Mon Feb 26 09:26:06 2018 -0800
libxshmfence 1.3
Signed-off-by: Matt Turner <mattst88@gmail.com>
commit 30d946bc7b522ada9ec2fdbd502f9e36aae21bba
Author: Michał Górny <mgorny@gentoo.org>
Date: Thu Feb 22 19:23:38 2018 +0100
Fix missing <limits.h> include for HAVE_UMTX branch of futex
This fixes build on Gentoo/FreeBSD which failed due to undefined
'INT_MAX'.
Signed-off-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
commit 517f21745c43883c1fd7128eeba3e2ae963cb779
Author: Adam Jackson <ajax@redhat.com>
Date: Mon Jan 29 14:36:04 2018 -0500
Revert "configure: Nerf a thing"
Definitely didn't mean to push this.
This reverts commit 1f194603cb927352c42798bead29c8ac3a680d02.
commit 0b550a4e7acf02d3478602848f6afbfcbfb0d4b2
Author: Ross Burton <ross.burton@intel.com>
Date: Mon Jan 29 16:24:36 2018 +0000
configure.ac: call AC_USE_SYSTEM_EXTENSIONS
With glibc 2.27 memfd_create() is inside a _GNU_SOURCE guard, so call
AC_USE_SYSTEM_EXTENSIONS to get this defined.
Signed-off-by: Ross Burton <ross.burton@intel.com>
commit 1f194603cb927352c42798bead29c8ac3a680d02
Author: Adam Jackson <ajax@redhat.com>
Date: Thu Dec 14 14:31:17 2017 -0500
configure: Nerf a thing
Signed-off-by: Adam Jackson <ajax@redhat.com>
commit db7966bee2ec46b835d0bb374f35ae631a0edbd1
Author: Mihail Konev <k.mvc@ya.ru>
Date: Thu Jan 26 13:52:49 2017 +1000
autogen: add default patch prefix
Signed-off-by: Mihail Konev <k.mvc@ya.ru>
commit e242a02f650663f5d25915899126cd081f6c6083
Author: Emil Velikov <emil.l.velikov@gmail.com>
Date: Mon Mar 9 12:00:52 2015 +0000
autogen.sh: use quoted string variables
Place quotes around the $srcdir, $ORIGDIR and $0 variables to prevent
fall-outs, when they contain space.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
commit f290f3946105e76999f4107100a619f00b065141
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue Jan 24 10:32:07 2017 +1000
autogen.sh: use exec instead of waiting for configure to finish
Syncs the invocation of configure with the one from the server.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
commit fe2d6dbba6356ff275649017dd516f0270d79595
Author: Keith Packard <keithp@keithp.com>
Date: Fri Jan 2 10:44:39 2015 -0800
Bump version to 1.2
Release with memfd support
Signed-off-by: Keith Packard <keithp@keithp.com>
commit b63ea144a0439c54a3a147274afeeb115caced5a
Author: Keith Packard <keithp@keithp.com>
Date: Thu Oct 9 14:01:21 2014 +0200
Use linux 3.17 memfd_create syscall when available
Linux 3.17 introduces a new anonymous memory allocation that returns a
file descriptor which we can pass around. Use this in preference to
creating a file in the filesystem where available.
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 9c4f070e1304a3503cfab08f68573443025fc4c9
Author: Keith Packard <keithp@keithp.com>
Date: Tue Jun 17 13:45:24 2014 -0700
Use /dev/shm as an optional shared memory directory
This is the path coded into glibc, so it should exist and be useful on
any glibc-based system
Signed-off-by: Keith Packard <keithp@keithp.com>
commit d3efccb33fa599d48004b22f2e07a19da4aaf789
Author: Jung-uk Kim <jkim@FreeBSD.org>
Date: Mon Dec 9 18:35:45 2013 -0500
Add support for FreeBSD using umtx (v3).
This fixes a sign-extension bug in the previous versions.
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 2b3415a32d44b9b51bf57877bb61d982667c10f0
Author: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Sat May 31 21:39:32 2014 -0700
autogen.sh: Honor NOCONFIGURE=1
See http://people.gnome.org/~walters/docs/build-api.txt
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
commit 9089c55ac4433bc79b6f3951c71dda9691ab5c29
Author: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Sat May 31 21:38:41 2014 -0700
configure: Drop AM_MAINTAINER_MODE
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
commit ca4ef282b55f3f05acc29a7c76b624f130cc74de
Author: Julien Cristau <jcristau@debian.org>
Date: Tue Dec 3 20:14:38 2013 +0100
Check return value from ftruncate
Silences compiler warning:
xshmfence_alloc.c: In function 'xshmfence_alloc_shm':
xshmfence_alloc.c:54:11: warning: ignoring return value of 'ftruncate', declared with attribute warn_unused_result [-Wunused-result]
ftruncate(fd, sizeof (struct xshmfence));
^
Signed-off-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
commit e8dd66fee206f93e1bee059bdadde064901ed745
Author: Keith Packard <keithp@keithp.com>
Date: Tue Nov 26 21:55:20 2013 -0800
Update to version 1.1
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 4b7c89d0dcaf48140c190dfe6a4560960229ab44
Author: Keith Packard <keithp@keithp.com>
Date: Mon Nov 25 13:36:54 2013 -0800
Describe the library better in the README file
Signed-off-by: Keith Packard <keithp@keithp.com>
commit c43c79c34d26277609fa02aedc1b862f4a280808
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 14:21:35 2013 -0800
Ignore test build files and release announcements
Signed-off-by: Keith Packard <keithp@keithp.com>
commit d4938bf5e57375b70c73831402fc8637996aad31
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 11:23:56 2013 -0800
Set symbol visibility attribute to hide internal symbols
Expose only the official API.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit e390e3aaee3dace2a1e6cfe66efd884fc256b0f0
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 11:22:04 2013 -0800
Provide pthread-based alternative implementation
This uses pthread mutexes and condition variables instead of futexes.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit daa78ee9a5f9b5590d540aa06466d6728fb2c795
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 11:19:50 2013 -0800
Split out futex implementation from general API
This splits the futex-specific code out into a separate file so that
future versions of the library could use some other underlying primitive.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit e15fa576597fb09330e603d17a51d7449a392e7c
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 09:13:48 2013 -0800
Add test program
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit bdbb26378da91e541f2fe2b3e827d9f6ed11f4a8
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 09:12:36 2013 -0800
Use O_TMPFILE if available
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit c17583d05872e4d9fb39af1a9963dc3738556b27
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 08:30:44 2013 -0800
Locate directory for shared memory files at configure time
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit b394d499eeb6abb0f23a629f22f6634f137d279e
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 20 08:25:44 2013 -0800
Change fence memory type from 'int32_t' to 'struct shmfence'
This will allow other implementations to use alternate
representations, as well as providing additional typechecking.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
commit d6fe39b4c3ec6ca75fb935b88a14916c730a6c26
Author: Gaetan Nadon <memsize@videotron.ca>
Date: Tue Nov 5 21:49:48 2013 -0500
lint: remove usage of libxshmfence_la_SOURCES
This variable is always empty.
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
commit 3b70b526f1dd4ccf35a63fc7d385d4d7098b8f6a
Author: Gaetan Nadon <memsize@videotron.ca>
Date: Tue Nov 5 21:36:18 2013 -0500
make: list non installed headers under the _SOURCES variable
Recommended by Automake:
http://www.gnu.org/software/automake/manual/automake.html#Headers
Also, this header is missing in the lint target $(libxshmfence_la_SOURCES)
As a bonus, all other libraries are following this advice.
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
commit f3fbd8e5026c0bb8b4d7f48875550bd3711e3c6e
Author: Gaetan Nadon <memsize@videotron.ca>
Date: Tue Nov 5 21:31:42 2013 -0500
make: add $(CWARNFLAGS)
It's required for all X libraries
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
commit b77bedb25d8eea02cc8114daf105dfed096ca024
Author: Gaetan Nadon <memsize@videotron.ca>
Date: Tue Nov 5 09:20:46 2013 -0500
Add the required README file
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
commit 67517e51374688c899e295d4d37371bda85bedbc
Author: Gaetan Nadon <memsize@videotron.ca>
Date: Tue Nov 5 09:18:53 2013 -0500
Add mandatory COPYING file.
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
commit d2272731010bd352219eb4ac738224bb5b69a6f9
Author: Aaron Plattner <aplattner@nvidia.com>
Date: Fri Nov 1 14:44:54 2013 -0700
Copy autotools boilerplate from http://www.x.org/wiki/NewModuleGuidelines/
I verified that this works with autoconf both 2.60 and 2.69.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Gaetan Nadon <memsize@videotron.ca>
commit 7f32d04bd4f583b0d4871450560bd2e9bafc3d79
Author: Aaron Plattner <aplattner@nvidia.com>
Date: Fri Nov 1 14:12:55 2013 -0700
Copy the standard .gitignore from other lib packages
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Gaetan Nadon <memsize@videotron.ca>
commit 8c83034247886168218eaa4d378cc8bf0c65a9cd
Author: Keith Packard <keithp@keithp.com>
Date: Thu Oct 31 16:36:54 2013 -0700
Update to verion 1.0
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 534cfada3291b56fd13546615f12654cde1a502f
Author: Keith Packard <keithp@keithp.com>
Date: Mon Apr 29 13:21:56 2013 -0700
Import first version of the library
Signed-off-by: Keith Packard <keithp@keithp.com>

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# Copyright © 2013 Keith Packard
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that copyright
# notice and this permission notice appear in supporting documentation, and
# that the name of the copyright holders not be used in advertising or
# publicity pertaining to distribution of the software without specific,
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#
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distclean: distclean-recursive
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
-rm -f Makefile
distclean-am: clean-am distclean-generic distclean-hdr \
distclean-libtool distclean-tags
dvi: dvi-recursive
dvi-am:
html: html-recursive
html-am:
info: info-recursive
info-am:
install-data-am: install-pkgconfigDATA
install-dvi: install-dvi-recursive
install-dvi-am:
install-exec-am:
install-html: install-html-recursive
install-html-am:
install-info: install-info-recursive
install-info-am:
install-man:
install-pdf: install-pdf-recursive
install-pdf-am:
install-ps: install-ps-recursive
install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-recursive
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
-rm -rf $(top_srcdir)/autom4te.cache
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-recursive
mostlyclean-am: mostlyclean-generic mostlyclean-libtool
pdf: pdf-recursive
pdf-am:
ps: ps-recursive
ps-am:
uninstall-am: uninstall-pkgconfigDATA
.MAKE: $(am__recursive_targets) all install-am install-strip
.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
am--refresh check check-am clean clean-cscope clean-generic \
clean-libtool cscope cscopelist-am ctags ctags-am dist \
dist-all dist-bzip2 dist-gzip dist-hook dist-lzip dist-shar \
dist-tarZ dist-xz dist-zip distcheck distclean \
distclean-generic distclean-hdr distclean-libtool \
distclean-tags distcleancheck distdir distuninstallcheck dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-man install-pdf \
install-pdf-am install-pkgconfigDATA install-ps install-ps-am \
install-strip installcheck installcheck-am installdirs \
installdirs-am maintainer-clean maintainer-clean-generic \
mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
ps ps-am tags tags-am uninstall uninstall-am \
uninstall-pkgconfigDATA
.PRECIOUS: Makefile
.PHONY: ChangeLog
ChangeLog:
$(CHANGELOG_CMD)
dist-hook: ChangeLog
@LINT_TRUE@lint:
@LINT_TRUE@ (cd src && $(MAKE) $(MFLAGS) lint)
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

36
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libxshmfence - Shared memory 'SyncFence' synchronization primitive
This library offers a CPU-based synchronization primitive compatible
with the X SyncFence objects that can be shared between processes
using file descriptor passing.
There are two underlying implementations:
1) On Linux, the library uses futexes
2) On other systems, the library uses posix mutexes and condition
variables.
All questions regarding this software should be directed at the
Xorg mailing list:
http://lists.freedesktop.org/mailman/listinfo/xorg
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/lib/libxshmfence
http://cgit.freedesktop.org/xorg/lib/libxshmfence
For patch submission instructions, see:
http://www.x.org/wiki/Development/Documentation/SubmittingPatches
For more information on the git code manager, see:
http://wiki.x.org/wiki/GitPage

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autogen.sh Normal file
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#! /bin/sh
srcdir=`dirname "$0"`
test -z "$srcdir" && srcdir=.
ORIGDIR=`pwd`
cd "$srcdir"
autoreconf -v --install || exit 1
cd "$ORIGDIR" || exit $?
git config --local --get format.subjectPrefix >/dev/null 2>&1 ||
git config --local format.subjectPrefix "PATCH libxshmfence"
if test -z "$NOCONFIGURE"; then
exec "$srcdir"/configure "$@"
fi

348
compile Executable file
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#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.
scriptversion=2016-01-11.22; # UTC
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
nl='
'
# We need space, tab and new line, in precisely that order. Quoting is
# there to prevent tools from complaining about whitespace usage.
IFS=" "" $nl"
file_conv=
# func_file_conv build_file lazy
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts. If the determined conversion
# type is listed in (the comma separated) LAZY, no conversion will
# take place.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv/,$2, in
*,$file_conv,*)
;;
mingw/*)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin/*)
file=`cygpath -m "$file" || echo "$file"`
;;
wine/*)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_cl_dashL linkdir
# Make cl look for libraries in LINKDIR
func_cl_dashL ()
{
func_file_conv "$1"
if test -z "$lib_path"; then
lib_path=$file
else
lib_path="$lib_path;$file"
fi
linker_opts="$linker_opts -LIBPATH:$file"
}
# func_cl_dashl library
# Do a library search-path lookup for cl
func_cl_dashl ()
{
lib=$1
found=no
save_IFS=$IFS
IFS=';'
for dir in $lib_path $LIB
do
IFS=$save_IFS
if $shared && test -f "$dir/$lib.dll.lib"; then
found=yes
lib=$dir/$lib.dll.lib
break
fi
if test -f "$dir/$lib.lib"; then
found=yes
lib=$dir/$lib.lib
break
fi
if test -f "$dir/lib$lib.a"; then
found=yes
lib=$dir/lib$lib.a
break
fi
done
IFS=$save_IFS
if test "$found" != yes; then
lib=$lib.lib
fi
}
# func_cl_wrapper cl arg...
# Adjust compile command to suit cl
func_cl_wrapper ()
{
# Assume a capable shell
lib_path=
shared=:
linker_opts=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
eat=1
case $2 in
*.o | *.[oO][bB][jJ])
func_file_conv "$2"
set x "$@" -Fo"$file"
shift
;;
*)
func_file_conv "$2"
set x "$@" -Fe"$file"
shift
;;
esac
;;
-I)
eat=1
func_file_conv "$2" mingw
set x "$@" -I"$file"
shift
;;
-I*)
func_file_conv "${1#-I}" mingw
set x "$@" -I"$file"
shift
;;
-l)
eat=1
func_cl_dashl "$2"
set x "$@" "$lib"
shift
;;
-l*)
func_cl_dashl "${1#-l}"
set x "$@" "$lib"
shift
;;
-L)
eat=1
func_cl_dashL "$2"
;;
-L*)
func_cl_dashL "${1#-L}"
;;
-static)
shared=false
;;
-Wl,*)
arg=${1#-Wl,}
save_ifs="$IFS"; IFS=','
for flag in $arg; do
IFS="$save_ifs"
linker_opts="$linker_opts $flag"
done
IFS="$save_ifs"
;;
-Xlinker)
eat=1
linker_opts="$linker_opts $2"
;;
-*)
set x "$@" "$1"
shift
;;
*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
func_file_conv "$1"
set x "$@" -Tp"$file"
shift
;;
*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
func_file_conv "$1" mingw
set x "$@" "$file"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -n "$linker_opts"; then
linker_opts="-link$linker_opts"
fi
exec "$@" $linker_opts
exit 1
}
eat=
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]
Wrapper for compilers which do not understand '-c -o'.
Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.
If you are trying to build a whole package this is not the
right script to run: please start by reading the file 'INSTALL'.
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "compile $scriptversion"
exit $?
;;
cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
func_cl_wrapper "$@" # Doesn't return...
;;
esac
ofile=
cfile=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
# So we strip '-o arg' only if arg is an object.
eat=1
case $2 in
*.o | *.obj)
ofile=$2
;;
*)
set x "$@" -o "$2"
shift
;;
esac
;;
*.c)
cfile=$1
set x "$@" "$1"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -z "$ofile" || test -z "$cfile"; then
# If no '-o' option was seen then we might have been invoked from a
# pattern rule where we don't need one. That is ok -- this is a
# normal compilation that the losing compiler can handle. If no
# '.c' file was seen then we are probably linking. That is also
# ok.
exec "$@"
fi
# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
# Create the lock directory.
# Note: use '[/\\:.-]' here to ensure that we don't use the same name
# that we are using for the .o file. Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
while true; do
if mkdir "$lockdir" >/dev/null 2>&1; then
break
fi
sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15
# Run the compile.
"$@"
ret=$?
if test -f "$cofile"; then
test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
fi
rmdir "$lockdir"
exit $ret
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

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config.h.in Normal file
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/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 if you have the declaration of `__NR_memfd_create', and to 0 if
you don't. */
#undef HAVE_DECL___NR_MEMFD_CREATE
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Use futexes */
#undef HAVE_FUTEX
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the `memfd_create' function. */
#undef HAVE_MEMFD_CREATE
/* Has sys/memfd.h header */
#undef HAVE_MEMFD_H
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Use pthread primitives */
#undef HAVE_PTHREAD
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if you have the <sys/memfd.h> header file. */
#undef HAVE_SYS_MEMFD_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Use umtx */
#undef HAVE_UMTX
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to the sub-directory where libtool stores uninstalled libraries. */
#undef LT_OBJDIR
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Major version of this package */
#undef PACKAGE_VERSION_MAJOR
/* Minor version of this package */
#undef PACKAGE_VERSION_MINOR
/* Patch version of this package */
#undef PACKAGE_VERSION_PATCHLEVEL
/* Directory for shared memory temp files */
#undef SHMDIR
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# undef _GNU_SOURCE
#endif
/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# undef _POSIX_PTHREAD_SEMANTICS
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# undef _TANDEM_SOURCE
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
#endif
/* Version number of package */
#undef VERSION
/* Define to 1 if on MINIX. */
#undef _MINIX
/* Define to 2 if the system does not provide POSIX.1 features except with
this defined. */
#undef _POSIX_1_SOURCE
/* Define to 1 if you need to in order for `stat' and other things to work. */
#undef _POSIX_SOURCE

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21199
configure vendored Executable file
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180
configure.ac Normal file
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@ -0,0 +1,180 @@
dnl
dnl Copyright © 2013 Keith Packard
dnl
dnl Permission to use, copy, modify, distribute, and sell this software and its
dnl documentation for any purpose is hereby granted without fee, provided that
dnl the above copyright notice appear in all copies and that both that copyright
dnl notice and this permission notice appear in supporting documentation, and
dnl that the name of the copyright holders not be used in advertising or
dnl publicity pertaining to distribution of the software without specific,
dnl written prior permission. The copyright holders make no representations
dnl about the suitability of this software for any purpose. It is provided "as
dnl is" without express or implied warranty.
dnl
dnl THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
dnl INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
dnl EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
dnl CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
dnl DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
dnl TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
dnl OF THIS SOFTWARE.
dnl
dnl
dnl Process this file with autoconf to create configure.
AC_PREREQ([2.60])
AC_INIT([libxshmfence], [1.3],
[https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], [libxshmfence])
AC_CONFIG_SRCDIR([Makefile.am])
AC_CONFIG_HEADERS([config.h])
AC_USE_SYSTEM_EXTENSIONS
# Initialize Automake
AM_INIT_AUTOMAKE([foreign dist-bzip2])
# Initialize libtool
AC_PROG_LIBTOOL
# Require xorg-macros: XORG_DEFAULT_OPTIONS, XORG_WITH_LINT
m4_ifndef([XORG_MACROS_VERSION],
[m4_fatal([must install xorg-macros 1.3 or later before running autoconf/autogen])])
XORG_MACROS_VERSION(1.3)
XORG_DEFAULT_OPTIONS
dnl Allow checking code with lint, sparse, etc.
XORG_WITH_LINT
LINT_FLAGS="${LINT_FLAGS} ${FONTENC_CFLAGS}"
dnl
dnl Locate a suitable tmp file system for creating shared memeory files
dnl
AC_ARG_ENABLE(futex, AS_HELP_STRING([--enable-futex], [Enable futexes (default: auto)]),
[FUTEX=$enableval], [FUTEX=auto])
if test "x$FUTEX" = "xauto"; then
AC_CHECK_HEADER([linux/futex.h], [FUTEX=yes])
fi
if test "x$FUTEX" = "xauto"; then
AC_CHECK_HEADER([sys/umtx.h], [FUTEX=yes], [FUTEX=no],
[#include <errno.h>
#include <sys/types.h>])
if test "x$FUTEX" = "xyes"; then
AC_DEFINE(HAVE_UMTX, 1, [Use umtx])
fi
fi
if test "x$FUTEX" = "xyes"; then
PTHREAD=no
AC_DEFINE(HAVE_FUTEX,1,[Use futexes])
else
PTHREAD=yes
AC_DEFINE(HAVE_PTHREAD,1,[Use pthread primitives])
fi
PTHREAD_LIBS=
if test "x$PTHREAD" = "xyes"; then
AC_CHECK_LIB(pthread,pthread_create,[PTHREAD_LIBS=-lpthread],[PTHREAD_LIBS=])
fi
AC_SUBST([PTHREAD_LIBS])
AM_CONDITIONAL([FUTEX], [test x"$FUTEX" = xyes])
AM_CONDITIONAL([PTHREAD], [test x"$PTHREAD" = xyes])
PKG_CHECK_MODULES(XPROTO, xproto)
AC_SUBST([XPROTO_CFLAGS])
CFLAGS="$CFLAGS $XPROTO_CFLAGS"
AC_CHECK_FUNCS(memfd_create)
AC_CHECK_DECLS([__NR_memfd_create], [], [], [[#include <asm/unistd.h>]])
AC_CHECK_HEADERS([sys/memfd.h], [AC_DEFINE([HAVE_MEMFD_H], 1, [Has sys/memfd.h header])])
AC_ARG_ENABLE(visibility, AC_HELP_STRING([--enable-visibility], [Enable symbol visibility (default: auto)]),
[SYMBOL_VISIBILITY=$enableval],
[SYMBOL_VISIBILITY=auto])
dnl ==================================================================
dnl symbol visibility
symbol_visibility=
have_visibility=disabled
if test x$SYMBOL_VISIBILITY != xno; then
AC_MSG_CHECKING(for symbol visibility support)
if test x$GCC = xyes; then
VISIBILITY_CFLAGS="-fvisibility=hidden"
else
if test x$SUNCC = xyes; then
VISIBILITY_CFLAGS="-xldscope=hidden"
else
have_visibility=no
fi
fi
if test x$have_visibility != xno; then
AC_TRY_COMPILE(
[#include <X11/Xfuncproto.h>
extern _X_HIDDEN int hidden_int;
extern _X_EXPORT int public_int;
extern _X_HIDDEN int hidden_int_func(void);
extern _X_EXPORT int public_int_func(void);],
[],
have_visibility=yes,
have_visibility=no)
fi
AC_MSG_RESULT([$have_visibility])
if test x$have_visibility != xno; then
symbol_visibility=$VISIBILITY_CFLAGS
CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
fi
fi
AC_ARG_WITH(shared-memory-dir, AS_HELP_STRING([--with-shared-memory-dir=PATH], [Path to directory in a world-writable temporary directory for anonymous shared memory (default: auto)]),
[],
[with_shared_memory_dir=yes])
shmdirs="/run/shm /dev/shm /var/tmp /tmp"
case x"$with_shared_memory_dir" in
xyes)
for dir in $shmdirs; do
case x"$with_shared_memory_dir" in
xyes)
echo Checking temp dir "$dir"
if test -d "$dir"; then
with_shared_memory_dir="$dir"
fi
;;
esac
done
;;
x/*)
;;
xno)
;;
*)
AC_MSG_ERROR([Invalid directory specified for --with-shared-memory-dir: $with_shared_memory_dir])
;;
esac
case x"$with_shared_memory_dir" in
xyes)
AC_MSG_ERROR([No directory found for shared memory temp files.])
;;
xno)
;;
*)
AC_DEFINE_UNQUOTED(SHMDIR, ["$with_shared_memory_dir"], [Directory for shared memory temp files])
;;
esac
AC_CONFIG_FILES([Makefile
src/Makefile
test/Makefile
xshmfence.pc])
AC_OUTPUT

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#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2016-01-11.22; # UTC
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
# This program 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.
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by 'PROGRAMS ARGS'.
object Object file output by 'PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputting dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
# Get the directory component of the given path, and save it in the
# global variables '$dir'. Note that this directory component will
# be either empty or ending with a '/' character. This is deliberate.
set_dir_from ()
{
case $1 in
*/*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
*) dir=;;
esac
}
# Get the suffix-stripped basename of the given path, and save it the
# global variable '$base'.
set_base_from ()
{
base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
}
# If no dependency file was actually created by the compiler invocation,
# we still have to create a dummy depfile, to avoid errors with the
# Makefile "include basename.Plo" scheme.
make_dummy_depfile ()
{
echo "#dummy" > "$depfile"
}
# Factor out some common post-processing of the generated depfile.
# Requires the auxiliary global variable '$tmpdepfile' to be set.
aix_post_process_depfile ()
{
# If the compiler actually managed to produce a dependency file,
# post-process it.
if test -f "$tmpdepfile"; then
# Each line is of the form 'foo.o: dependency.h'.
# Do two passes, one to just change these to
# $object: dependency.h
# and one to simply output
# dependency.h:
# which is needed to avoid the deleted-header problem.
{ sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
} > "$depfile"
rm -f "$tmpdepfile"
else
make_dummy_depfile
fi
}
# A tabulation character.
tab=' '
# A newline character.
nl='
'
# Character ranges might be problematic outside the C locale.
# These definitions help.
upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
lower=abcdefghijklmnopqrstuvwxyz
digits=0123456789
alpha=${upper}${lower}
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Avoid interferences from the environment.
gccflag= dashmflag=
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
cygpath_u="cygpath -u -f -"
if test "$depmode" = msvcmsys; then
# This is just like msvisualcpp but w/o cygpath translation.
# Just convert the backslash-escaped backslashes to single forward
# slashes to satisfy depend.m4
cygpath_u='sed s,\\\\,/,g'
depmode=msvisualcpp
fi
if test "$depmode" = msvc7msys; then
# This is just like msvc7 but w/o cygpath translation.
# Just convert the backslash-escaped backslashes to single forward
# slashes to satisfy depend.m4
cygpath_u='sed s,\\\\,/,g'
depmode=msvc7
fi
if test "$depmode" = xlc; then
# IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
gccflag=-qmakedep=gcc,-MF
depmode=gcc
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am. Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
for arg
do
case $arg in
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
*) set fnord "$@" "$arg" ;;
esac
shift # fnord
shift # $arg
done
"$@"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
## (see the conditional assignment to $gccflag above).
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say). Also, it might not be
## supported by the other compilers which use the 'gcc' depmode.
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
# The second -e expression handles DOS-style file names with drive
# letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the "deleted header file" problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
## Some versions of gcc put a space before the ':'. On the theory
## that the space means something, we add a space to the output as
## well. hp depmode also adds that space, but also prefixes the VPATH
## to the object. Take care to not repeat it in the output.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like '#:fec' to the end of the
# dependency line.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
| tr "$nl" ' ' >> "$depfile"
echo >> "$depfile"
# The second pass generates a dummy entry for each header file.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> "$depfile"
else
make_dummy_depfile
fi
rm -f "$tmpdepfile"
;;
xlc)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts '$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.u
tmpdepfile2=$base.u
tmpdepfile3=$dir.libs/$base.u
"$@" -Wc,-M
else
tmpdepfile1=$dir$base.u
tmpdepfile2=$dir$base.u
tmpdepfile3=$dir$base.u
"$@" -M
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
aix_post_process_depfile
;;
tcc)
# tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
# FIXME: That version still under development at the moment of writing.
# Make that this statement remains true also for stable, released
# versions.
# It will wrap lines (doesn't matter whether long or short) with a
# trailing '\', as in:
#
# foo.o : \
# foo.c \
# foo.h \
#
# It will put a trailing '\' even on the last line, and will use leading
# spaces rather than leading tabs (at least since its commit 0394caf7
# "Emit spaces for -MD").
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
# We have to change lines of the first kind to '$object: \'.
sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
# And for each line of the second kind, we have to emit a 'dep.h:'
# dummy dependency, to avoid the deleted-header problem.
sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
rm -f "$tmpdepfile"
;;
## The order of this option in the case statement is important, since the
## shell code in configure will try each of these formats in the order
## listed in this file. A plain '-MD' option would be understood by many
## compilers, so we must ensure this comes after the gcc and icc options.
pgcc)
# Portland's C compiler understands '-MD'.
# Will always output deps to 'file.d' where file is the root name of the
# source file under compilation, even if file resides in a subdirectory.
# The object file name does not affect the name of the '.d' file.
# pgcc 10.2 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using '\' :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
set_dir_from "$object"
# Use the source, not the object, to determine the base name, since
# that's sadly what pgcc will do too.
set_base_from "$source"
tmpdepfile=$base.d
# For projects that build the same source file twice into different object
# files, the pgcc approach of using the *source* file root name can cause
# problems in parallel builds. Use a locking strategy to avoid stomping on
# the same $tmpdepfile.
lockdir=$base.d-lock
trap "
echo '$0: caught signal, cleaning up...' >&2
rmdir '$lockdir'
exit 1
" 1 2 13 15
numtries=100
i=$numtries
while test $i -gt 0; do
# mkdir is a portable test-and-set.
if mkdir "$lockdir" 2>/dev/null; then
# This process acquired the lock.
"$@" -MD
stat=$?
# Release the lock.
rmdir "$lockdir"
break
else
# If the lock is being held by a different process, wait
# until the winning process is done or we timeout.
while test -d "$lockdir" && test $i -gt 0; do
sleep 1
i=`expr $i - 1`
done
fi
i=`expr $i - 1`
done
trap - 1 2 13 15
if test $i -le 0; then
echo "$0: failed to acquire lock after $numtries attempts" >&2
echo "$0: check lockdir '$lockdir'" >&2
exit 1
fi
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp2)
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
# compilers, which have integrated preprocessors. The correct option
# to use with these is +Maked; it writes dependencies to a file named
# 'foo.d', which lands next to the object file, wherever that
# happens to be.
# Much of this is similar to the tru64 case; see comments there.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir.libs/$base.d
"$@" -Wc,+Maked
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
"$@" +Maked
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
# Add 'dependent.h:' lines.
sed -ne '2,${
s/^ *//
s/ \\*$//
s/$/:/
p
}' "$tmpdepfile" >> "$depfile"
else
make_dummy_depfile
fi
rm -f "$tmpdepfile" "$tmpdepfile2"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in 'foo.d' instead, so we check for that too.
# Subdirectories are respected.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
# Libtool generates 2 separate objects for the 2 libraries. These
# two compilations output dependencies in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir$base.o.d # libtool 1.5
tmpdepfile2=$dir.libs/$base.o.d # Likewise.
tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
# Same post-processing that is required for AIX mode.
aix_post_process_depfile
;;
msvc7)
if test "$libtool" = yes; then
showIncludes=-Wc,-showIncludes
else
showIncludes=-showIncludes
fi
"$@" $showIncludes > "$tmpdepfile"
stat=$?
grep -v '^Note: including file: ' "$tmpdepfile"
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
# The first sed program below extracts the file names and escapes
# backslashes for cygpath. The second sed program outputs the file
# name when reading, but also accumulates all include files in the
# hold buffer in order to output them again at the end. This only
# works with sed implementations that can handle large buffers.
sed < "$tmpdepfile" -n '
/^Note: including file: *\(.*\)/ {
s//\1/
s/\\/\\\\/g
p
}' | $cygpath_u | sort -u | sed -n '
s/ /\\ /g
s/\(.*\)/'"$tab"'\1 \\/p
s/.\(.*\) \\/\1:/
H
$ {
s/.*/'"$tab"'/
G
p
}' >> "$depfile"
echo >> "$depfile" # make sure the fragment doesn't end with a backslash
rm -f "$tmpdepfile"
;;
msvc7msys)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove '-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for ':'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
"$@" $dashmflag |
sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this sed invocation
# correctly. Breaking it into two sed invocations is a workaround.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no eat=no
for arg
do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
if test $eat = yes; then
eat=no
continue
fi
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-arch)
eat=yes ;;
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix=`echo "$object" | sed 's/^.*\././'`
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
# makedepend may prepend the VPATH from the source file name to the object.
# No need to regex-escape $object, excess matching of '.' is harmless.
sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process the last invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed '1,2d' "$tmpdepfile" \
| tr ' ' "$nl" \
| sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove '-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E \
| sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
| sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
IFS=" "
for arg
do
case "$arg" in
-o)
shift
;;
$object)
shift
;;
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E 2>/dev/null |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
echo "$tab" >> "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvcmsys)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

501
install-sh Executable file
View File

@ -0,0 +1,501 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2016-01-11.22; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
tab=' '
nl='
'
IFS=" $tab$nl"
# Set DOITPROG to "echo" to test this script.
doit=${DOITPROG-}
doit_exec=${doit:-exec}
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
posix_mkdir=
# Desired mode of installed file.
mode=0755
chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=
src=
dst=
dir_arg=
dst_arg=
copy_on_change=false
is_target_a_directory=possibly
usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
or: $0 [OPTION]... SRCFILES... DIRECTORY
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
or: $0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
--help display this help and exit.
--version display version info and exit.
-c (ignored)
-C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) ;;
-C) copy_on_change=true;;
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
shift;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
case $mode in
*' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog $2"
shift;;
-s) stripcmd=$stripprog;;
-t)
is_target_a_directory=always
dst_arg=$2
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
shift;;
-T) is_target_a_directory=never;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
shift
done
# We allow the use of options -d and -T together, by making -d
# take the precedence; this is for compatibility with GNU install.
if test -n "$dir_arg"; then
if test -n "$dst_arg"; then
echo "$0: target directory not allowed when installing a directory." >&2
exit 1
fi
fi
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
if test -n "$dst_arg"; then
# $@ is not empty: it contains at least $arg.
set fnord "$@" "$dst_arg"
shift # fnord
fi
shift # arg
dst_arg=$arg
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
done
fi
if test $# -eq 0; then
if test -z "$dir_arg"; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call 'install-sh -d' without argument.
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exit 0
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if test -z "$dir_arg"; then
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if test ! -d "$dst_arg"; then
echo "$0: $dst_arg: Is not a directory." >&2
exit 1
fi
fi
fi
if test -z "$dir_arg"; then
do_exit='(exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
trap "ret=130; $do_exit" 2
trap "ret=141; $do_exit" 13
trap "ret=143; $do_exit" 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case $mode in
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
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u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names problematic for 'test' and other utilities.
case $src in
-* | [=\(\)!]) src=./$src;;
esac
if test -n "$dir_arg"; then
dst=$src
dstdir=$dst
test -d "$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if test ! -f "$src" && test ! -d "$src"; then
echo "$0: $src does not exist." >&2
exit 1
fi
if test -z "$dst_arg"; then
echo "$0: no destination specified." >&2
exit 1
fi
dst=$dst_arg
# If destination is a directory, append the input filename; won't work
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if test -d "$dst"; then
if test "$is_target_a_directory" = never; then
echo "$0: $dst_arg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
dstdir=`dirname "$dst"`
test -d "$dstdir"
dstdir_status=$?
fi
fi
obsolete_mkdir_used=false
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case $stripcmd.$umask in
# Optimize common cases.
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.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr $umask + 22 \
- $umask % 100 % 40 + $umask % 20 \
- $umask % 10 % 4 + $umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
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mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
if (umask $mkdir_umask &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
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# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/d" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
fi
trap '' 0;;
esac;;
esac
if
$posix_mkdir && (
umask $mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
/*) prefix='/';;
[-=\(\)!]*) prefix='./';;
*) prefix='';;
esac
oIFS=$IFS
IFS=/
set -f
set fnord $dstdir
shift
set +f
IFS=$oIFS
prefixes=
for d
do
test X"$d" = X && continue
prefix=$prefix$d
if test -d "$prefix"; then
prefixes=
else
if $posix_mkdir; then
(umask=$mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
# Don't fail if two instances are running concurrently.
test -d "$prefix" || exit 1
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case $prefix in
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*) qprefix=$prefix;;
esac
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fi
fi
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(umask $mkdir_umask &&
eval "\$doit_exec \$mkdirprog $prefixes") ||
test -d "$dstdir" || exit 1
obsolete_mkdir_used=true
fi
fi
fi
if test -n "$dir_arg"; then
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=$dstdir/_inst.$$_
rmtmp=$dstdir/_rm.$$_
# Trap to clean up those temp files at exit.
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
# If -C, don't bother to copy if it wouldn't change the file.
if $copy_on_change &&
old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
set +f &&
test "$old" = "$new" &&
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
then
rm -f "$dsttmp"
else
# Rename the file to the real destination.
$doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
test ! -f "$dst" ||
$doit $rmcmd -f "$dst" 2>/dev/null ||
{ $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
{ $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
} ||
{ echo "$0: cannot unlink or rename $dst" >&2
(exit 1); exit 1
}
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dst"
}
fi || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

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#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.
scriptversion=2016-01-11.22; # UTC
# Copyright (C) 1996-2017 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program 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.
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try '$0 --help' for more information"
exit 1
fi
case $1 in
--is-lightweight)
# Used by our autoconf macros to check whether the available missing
# script is modern enough.
exit 0
;;
--run)
# Back-compat with the calling convention used by older automake.
shift
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
to PROGRAM being missing or too old.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
Supported PROGRAM values:
aclocal autoconf autoheader autom4te automake makeinfo
bison yacc flex lex help2man
Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
'g' are ignored when checking the name.
Send bug reports to <bug-automake@gnu.org>."
exit $?
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo "missing $scriptversion (GNU Automake)"
exit $?
;;
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exit 1
;;
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perl_URL=http://www.perl.org/
flex_URL=http://flex.sourceforge.net/
gnu_software_URL=http://www.gnu.org/software
program_details ()
{
case $1 in
aclocal|automake)
echo "The '$1' program is part of the GNU Automake package:"
echo "<$gnu_software_URL/automake>"
echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
echo "<$gnu_software_URL/autoconf>"
echo "<$gnu_software_URL/m4/>"
echo "<$perl_URL>"
;;
autoconf|autom4te|autoheader)
echo "The '$1' program is part of the GNU Autoconf package:"
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;;
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{
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s/^gnu-//; t
s/^gnu//; t
s/^g//; t'`
printf '%s\n' "'$1' is $msg."
configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
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autoconf*)
echo "You should only need it if you modified 'configure.ac',"
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program_details 'autoconf'
;;
autoheader*)
echo "You should only need it if you modified 'acconfig.h' or"
echo "$configure_deps."
program_details 'autoheader'
;;
automake*)
echo "You should only need it if you modified 'Makefile.am' or"
echo "$configure_deps."
program_details 'automake'
;;
aclocal*)
echo "You should only need it if you modified 'acinclude.m4' or"
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program_details 'aclocal'
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autom4te*)
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program_details 'autom4te'
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bison*|yacc*)
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echo "<$gnu_software_URL/bison/>"
;;
lex*|flex*)
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echo "<$flex_URL>"
;;
help2man*)
echo "You should only need it if you modified a dependency" \
"of a man page."
echo "You may want to install the GNU Help2man package:"
echo "<$gnu_software_URL/help2man/>"
;;
makeinfo*)
echo "You should only need it if you modified a '.texi' file, or"
echo "any other file indirectly affecting the aspect of the manual."
echo "You might want to install the Texinfo package:"
echo "<$gnu_software_URL/texinfo/>"
echo "The spurious makeinfo call might also be the consequence of"
echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
echo "want to install GNU make:"
echo "<$gnu_software_URL/make/>"
;;
*)
echo "You might have modified some files without having the proper"
echo "tools for further handling them. Check the 'README' file, it"
echo "often tells you about the needed prerequisites for installing"
echo "this package. You may also peek at any GNU archive site, in"
echo "case some other package contains this missing '$1' program."
;;
esac
}
give_advice "$1" | sed -e '1s/^/WARNING: /' \
-e '2,$s/^/ /' >&2
# Propagate the correct exit status (expected to be 127 for a program
# not found, 63 for a program that failed due to version mismatch).
exit $st
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

31
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lib_LTLIBRARIES = libxshmfence.la
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.MAKE: install-am install-strip
.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
clean-libLTLIBRARIES clean-libtool cscopelist-am ctags \
ctags-am distclean distclean-compile distclean-generic \
distclean-libtool distclean-tags distdir dvi dvi-am html \
html-am info info-am install install-am install-data \
install-data-am install-dvi install-dvi-am install-exec \
install-exec-am install-html install-html-am install-info \
install-info-am install-libLTLIBRARIES \
install-libxshmfenceincludeHEADERS install-man install-pdf \
install-pdf-am install-ps install-ps-am install-strip \
installcheck installcheck-am installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-compile \
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
tags tags-am uninstall uninstall-am uninstall-libLTLIBRARIES \
uninstall-libxshmfenceincludeHEADERS
.PRECIOUS: Makefile
@LINT_TRUE@lint:
@LINT_TRUE@ $(LINT) $(ALL_LINT_FLAGS) $(libxshmfence_la_SOURCES) $(LIBS)
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _XSHMFENCE_H_
#define _XSHMFENCE_H_
#include <X11/Xfuncproto.h>
#define HAVE_STRUCT_XSHMFENCE 1
struct xshmfence;
_X_EXPORT int
xshmfence_trigger(struct xshmfence *f);
_X_EXPORT int
xshmfence_await(struct xshmfence *f);
_X_EXPORT int
xshmfence_query(struct xshmfence *f);
_X_EXPORT void
xshmfence_reset(struct xshmfence *f);
_X_EXPORT int
xshmfence_alloc_shm(void);
_X_EXPORT struct xshmfence *
xshmfence_map_shm(int fd);
_X_EXPORT void
xshmfence_unmap_shm(struct xshmfence *f);
#endif /* _XSHMFENCE_H_ */

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "xshmfenceint.h"
#if !HAVE_MEMFD_CREATE
#if HAVE_DECL___NR_MEMFD_CREATE
#include <asm/unistd.h>
static int memfd_create(const char *name,
unsigned int flags)
{
return syscall(__NR_memfd_create, name, flags);
}
#define HAVE_MEMFD_CREATE 1
#endif
#endif
#if HAVE_MEMFD_CREATE
/* Get defines for the memfd_create syscall, using the
* header if available, or just defining the constants otherwise
*/
#if HAVE_MEMFD_H
#include <sys/memfd.h>
#else
/* flags for memfd_create(2) (unsigned int) */
#define MFD_CLOEXEC 0x0001U
#define MFD_ALLOW_SEALING 0x0002U
#endif
#endif
/**
* xshmfence_alloc_shm:
*
* Allocates a shared memory object large enough to hold a single
* fence.
*
* Return value: the file descriptor of the object, or -1 on failure
* (in which case, errno will be set as appropriate).
**/
int
xshmfence_alloc_shm(void)
{
char template[] = SHMDIR "/shmfd-XXXXXX";
int fd;
#if HAVE_MEMFD_CREATE
fd = memfd_create("xshmfence", MFD_CLOEXEC|MFD_ALLOW_SEALING);
if (fd < 0)
#endif
{
#ifdef O_TMPFILE
fd = open(SHMDIR, O_TMPFILE|O_RDWR|O_CLOEXEC|O_EXCL, 0666);
if (fd < 0)
#endif
{
fd = mkstemp(template);
if (fd < 0)
return fd;
unlink(template);
}
}
if (ftruncate(fd, sizeof (struct xshmfence)) < 0) {
close(fd);
return -1;
}
xshmfence_init(fd);
return fd;
}
/**
* xshmfence_map_shm:
*
* Map a shared memory fence referenced by @fd.
*
* Return value: the fence or NULL (in which case, errno will be set
* as appropriate).
**/
struct xshmfence *
xshmfence_map_shm(int fd)
{
struct xshmfence *addr;
addr = mmap (NULL, sizeof (struct xshmfence) , PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (addr == MAP_FAILED) {
close (fd);
return 0;
}
return addr;
}
/**
* xshmfence_unmap_shm:
*
* Unap a shared memory fence @f.
**/
void
xshmfence_unmap_shm(struct xshmfence *f)
{
munmap(f, sizeof (struct xshmfence));
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "xshmfenceint.h"
/**
* xshmfence_trigger:
* @f: An X fence
*
* Set @f to triggered, waking all waiters.
*
* Return value: 0 on success and -1 on error (in which case, errno
* will be set as appropriate).
**/
int
xshmfence_trigger(struct xshmfence *f)
{
if (__sync_val_compare_and_swap(&f->v, 0, 1) == -1) {
atomic_store(&f->v, 1);
if (futex_wake(&f->v) < 0)
return -1;
}
return 0;
}
/**
* xshmfence_await:
* @f: An X fence
*
* Wait for @f to be triggered. If @f is already triggered, this
* function returns immediately.
*
* Return value: 0 on success and -1 on error (in which case, errno
* will be set as appropriate).
**/
int
xshmfence_await(struct xshmfence *f)
{
while (__sync_val_compare_and_swap(&f->v, 0, -1) != 1) {
if (futex_wait(&f->v, -1)) {
if (errno != EWOULDBLOCK)
return -1;
}
}
return 0;
}
/**
* xshmfence_query:
* @f: An X fence
*
* Return value: 1 if @f is triggered, else returns 0.
**/
int
xshmfence_query(struct xshmfence *f)
{
return atomic_fetch(&f->v) == 1;
}
/**
* xshmfence_reset:
* @f: An X fence
*
* Reset @f to untriggered. If @f is already untriggered,
* this function has no effect.
**/
void
xshmfence_reset(struct xshmfence *f)
{
__sync_bool_compare_and_swap(&f->v, 1, 0);
}

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/*
* Copyright © 2013 Keith Packard
* Copyright © 2013 Jung-uk Kim <jkim@FreeBSD.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _XSHMFENCE_FUTEX_H_
#define _XSHMFENCE_FUTEX_H_
#include <errno.h>
#ifdef HAVE_UMTX
#include <sys/types.h>
#include <sys/umtx.h>
#include <limits.h>
static inline int sys_futex(void *addr, int op, int32_t val)
{
return _umtx_op(addr, op, (uint32_t)val, NULL, NULL) == -1 ? errno : 0;
}
static inline int futex_wake(int32_t *addr) {
return sys_futex(addr, UMTX_OP_WAKE, INT_MAX);
}
static inline int futex_wait(int32_t *addr, int32_t value) {
return sys_futex(addr, UMTX_OP_WAIT_UINT, value);
}
#else
#include <stdint.h>
#include <values.h>
#include <linux/futex.h>
#include <sys/time.h>
#include <sys/syscall.h>
static inline long sys_futex(void *addr1, int op, int val1, struct timespec *timeout, void *addr2, int val3)
{
return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3);
}
static inline int futex_wake(int32_t *addr) {
return sys_futex(addr, FUTEX_WAKE, MAXINT, NULL, NULL, 0);
}
static inline int futex_wait(int32_t *addr, int32_t value) {
return sys_futex(addr, FUTEX_WAIT, value, NULL, NULL, 0);
}
#endif
#define barrier() __asm__ __volatile__("": : :"memory")
static inline void atomic_store(int32_t *f, int32_t v)
{
barrier();
*f = v;
barrier();
}
static inline int32_t atomic_fetch(int32_t *a)
{
int32_t v;
barrier();
v = *a;
barrier();
return v;
}
struct xshmfence {
int32_t v;
};
#define xshmfence_init(fd)
#endif /* _XSHMFENCE_FUTEX_H_ */

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "xshmfenceint.h"
/**
* xshmfence_trigger:
* @f: An X fence
*
* Set @f to triggered, waking all waiters.
*
* Return value: 0 on success and -1 on error (in which case, errno
* will be set as appropriate).
**/
int
xshmfence_trigger(struct xshmfence *f) {
pthread_mutex_lock(&f->lock);
if (f->value == 0) {
f->value = 1;
if (f->waiting) {
f->waiting = 0;
pthread_cond_broadcast(&f->wakeup);
}
}
pthread_mutex_unlock(&f->lock);
return 0;
}
/**
* xshmfence_await:
* @f: An X fence
*
* Wait for @f to be triggered. If @f is already triggered, this
* function returns immediately.
*
* Return value: 0 on success and -1 on error (in which case, errno
* will be set as appropriate).
**/
int
xshmfence_await(struct xshmfence *f) {
pthread_mutex_lock(&f->lock);
while (f->value == 0) {
f->waiting = 1;
pthread_cond_wait(&f->wakeup, &f->lock);
}
pthread_mutex_unlock(&f->lock);
return 0;
}
/**
* xshmfence_query:
* @f: An X fence
*
* Return value: 1 if @f is triggered, else returns 0.
**/
int
xshmfence_query(struct xshmfence *f) {
int value;
pthread_mutex_lock(&f->lock);
value = f->value;
pthread_mutex_unlock(&f->lock);
return value;
}
/**
* xshmfence_reset:
* @f: An X fence
*
* Reset @f to untriggered. If @f is already untriggered,
* this function has no effect.
**/
void
xshmfence_reset(struct xshmfence *f) {
pthread_mutex_lock(&f->lock);
f->value = 0;
pthread_mutex_unlock(&f->lock);
}
/**
* xshmfence_init:
* @fd: An fd for an X fence
*
* Initialize the fence when first allocated
**/
void
xshmfence_init(int fd)
{
struct xshmfence *f = xshmfence_map_shm(fd);
pthread_mutexattr_t mutex_attr;
pthread_condattr_t cond_attr;
if (!f)
return;
pthread_mutexattr_init(&mutex_attr);
pthread_mutexattr_setpshared(&mutex_attr, PTHREAD_PROCESS_SHARED);
pthread_mutex_init(&f->lock, &mutex_attr);
pthread_condattr_init(&cond_attr);
pthread_condattr_setpshared(&cond_attr, PTHREAD_PROCESS_SHARED);
pthread_cond_init(&f->wakeup, &cond_attr);
f->value = 0;
f->waiting = 0;
xshmfence_unmap_shm(f);
}

39
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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _XSHMFENCE_PTHREAD_H_
#define _XSHMFENCE_PTHREAD_H_
#include <pthread.h>
#include <sys/types.h>
struct xshmfence {
pthread_mutex_t lock;
pthread_cond_t wakeup;
int value;
int waiting;
};
void
xshmfence_init(int fd);
#endif /* _XSHMFENCE_PTHREAD_H_ */

39
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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _XSHMFENCEINT_H_
#define _XSHMFENCEINT_H_
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include "xshmfence.h"
#if HAVE_FUTEX
#include "xshmfence_futex.h"
#endif
#if HAVE_PTHREAD
#include "xshmfence_pthread.h"
#endif
#endif /* _XSHMFENCEINT_H_ */

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#! /bin/sh
# test-driver - basic testsuite driver script.
scriptversion=2016-01-11.22; # UTC
# Copyright (C) 2011-2017 Free Software Foundation, Inc.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
# Make unconditional expansion of undefined variables an error. This
# helps a lot in preventing typo-related bugs.
set -u
usage_error ()
{
echo "$0: $*" >&2
print_usage >&2
exit 2
}
print_usage ()
{
cat <<END
Usage:
test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
[--expect-failure={yes|no}] [--color-tests={yes|no}]
[--enable-hard-errors={yes|no}] [--]
TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
The '--test-name', '--log-file' and '--trs-file' options are mandatory.
END
}
test_name= # Used for reporting.
log_file= # Where to save the output of the test script.
trs_file= # Where to save the metadata of the test run.
expect_failure=no
color_tests=no
enable_hard_errors=yes
while test $# -gt 0; do
case $1 in
--help) print_usage; exit $?;;
--version) echo "test-driver $scriptversion"; exit $?;;
--test-name) test_name=$2; shift;;
--log-file) log_file=$2; shift;;
--trs-file) trs_file=$2; shift;;
--color-tests) color_tests=$2; shift;;
--expect-failure) expect_failure=$2; shift;;
--enable-hard-errors) enable_hard_errors=$2; shift;;
--) shift; break;;
-*) usage_error "invalid option: '$1'";;
*) break;;
esac
shift
done
missing_opts=
test x"$test_name" = x && missing_opts="$missing_opts --test-name"
test x"$log_file" = x && missing_opts="$missing_opts --log-file"
test x"$trs_file" = x && missing_opts="$missing_opts --trs-file"
if test x"$missing_opts" != x; then
usage_error "the following mandatory options are missing:$missing_opts"
fi
if test $# -eq 0; then
usage_error "missing argument"
fi
if test $color_tests = yes; then
# Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
red='' # Red.
grn='' # Green.
lgn='' # Light green.
blu='' # Blue.
mgn='' # Magenta.
std='' # No color.
else
red= grn= lgn= blu= mgn= std=
fi
do_exit='rm -f $log_file $trs_file; (exit $st); exit $st'
trap "st=129; $do_exit" 1
trap "st=130; $do_exit" 2
trap "st=141; $do_exit" 13
trap "st=143; $do_exit" 15
# Test script is run here.
"$@" >$log_file 2>&1
estatus=$?
if test $enable_hard_errors = no && test $estatus -eq 99; then
tweaked_estatus=1
else
tweaked_estatus=$estatus
fi
case $tweaked_estatus:$expect_failure in
0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
0:*) col=$grn res=PASS recheck=no gcopy=no;;
77:*) col=$blu res=SKIP recheck=no gcopy=yes;;
99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;;
*:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;;
*:*) col=$red res=FAIL recheck=yes gcopy=yes;;
esac
# Report the test outcome and exit status in the logs, so that one can
# know whether the test passed or failed simply by looking at the '.log'
# file, without the need of also peaking into the corresponding '.trs'
# file (automake bug#11814).
echo "$res $test_name (exit status: $estatus)" >>$log_file
# Report outcome to console.
echo "${col}${res}${std}: $test_name"
# Register the test result, and other relevant metadata.
echo ":test-result: $res" > $trs_file
echo ":global-test-result: $res" >> $trs_file
echo ":recheck: $recheck" >> $trs_file
echo ":copy-in-global-log: $gcopy" >> $trs_file
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

9
test/Makefile.am Normal file
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check_PROGRAMS = xshmfence_test
TESTS=$(check_PROGRAMS)
xshmfence_test_SOURCES = xshmfence_test.c
xshmfence_test_CFLAGS = -I$(top_srcdir)/src
xshmfence_test_LDADD = $(top_builddir)/src/libxshmfence.la @PTHREAD_LIBS@

997
test/Makefile.in Normal file
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@ -0,0 +1,997 @@
# Makefile.in generated by automake 1.15.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2017 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
VPATH = @srcdir@
am__is_gnu_make = { \
if test -z '$(MAKELEVEL)'; then \
false; \
elif test -n '$(MAKE_HOST)'; then \
true; \
elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
true; \
else \
false; \
fi; \
}
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test/xshmfence_test.c Normal file
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@ -0,0 +1,178 @@
/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdint.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <xshmfence.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#define NCHILD 5 /* number of child processes to fork */
#define NCHECK 10 /* number of times to signal the fence */
/* Catch an alarm and bail
*/
static void
sigalrm(int sig)
{
write(2, "caught alarm\n", 13);
exit(1);
}
int
main(int argc, char **argv)
{
int fd;
struct xshmfence *x;
int i;
int c;
int pid;
int status;
int failed = 0;
/* Allocate a fence
*/
fd = xshmfence_alloc_shm();
if (fd < 0) {
perror("xshmfence_alloc_shm");
exit(1);
}
/* fork NCHILD processes to wait for the fence
*/
for (c = 0; c < NCHILD; c++) {
switch (fork()) {
case -1:
perror("fork");
exit(1);
case 0:
/* Set an alarm to limit how long
* to wait
*/
signal(SIGALRM, sigalrm);
alarm(10);
/* Map the fence
*/
x = xshmfence_map_shm(fd);
if (!x) {
fprintf(stderr, "%6d: ", c);
perror("xshmfence_map_shm");
exit(1);
}
for (i = 0; i < NCHECK; i++) {
/* Verify that the fence is currently reset
*/
if (xshmfence_query(x) != 0) {
fprintf(stderr, "%6d: query reset failed\n", c);
exit(1);
}
/* Wait for the fence
*/
fprintf(stderr, "%6d: waiting\n", c);
if (xshmfence_await(x) < 0) {
fprintf(stderr, "%6d: ", c);
perror("xshmfence_await");
exit(1);
}
fprintf(stderr, "%6d: awoken\n", c);
/* Verify that the fence is currently triggered
*/
if (xshmfence_query(x) == 0) {
fprintf(stderr, "%6d: query triggered failed\n", c);
exit(1);
}
usleep(10 * 1000);
/* Reset the fence
*/
if (c == 0)
xshmfence_reset(x);
usleep(10 * 1000);
}
fprintf(stderr, "%6d: done\n", c);
exit(0);
}
}
/* Map the fence into the parent process
*/
x = xshmfence_map_shm(fd);
if (!x) {
perror("xshmfence_map_shm");
exit(1);
}
for (i = 0; i < NCHECK; i++) {
usleep(100 * 1000);
fprintf(stderr, "trigger\n");
/* Verify that the fence is reset
*/
if (xshmfence_query(x) != 0) {
fprintf(stderr, "query reset failed\n");
exit(1);
}
/* Trigger the fence
*/
if (xshmfence_trigger(x) < 0) {
perror("xshmfence_trigger");
exit(1);
}
/* Verify that the fence is triggered
*/
if (xshmfence_query(x) == 0) {
fprintf (stderr, "query triggered failed\n");
exit(1);
}
fprintf(stderr, "trigger done\n");
}
/* Reap all of the child processes
*/
for (c = 0; c < NCHILD; c++) {
pid = wait(&status);
if (pid < 0) {
perror("wait");
exit(1);
}
fprintf(stderr, "child %d done %d\n", pid, status);
if (status)
failed++;
}
exit(failed);
}

11
xshmfence.pc.in Normal file
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@ -0,0 +1,11 @@
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: xshmfence
Description: The X Shared Memory Fence Library
Version: @PACKAGE_VERSION@
Cflags: -I${includedir} @XPROTO_CFLAGS@
Libs: -L${libdir} -lxshmfence
Libs.private: @PTHREAD_LIBS@