Mercurial > gnulib
view build-aux/reloc-ldflags @ 40210:44073ad4207f
unictype/numeric: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unictype/numeric.c (uc_numeric_value): Avoid undefined behaviour
on shift overflow, caught by "gcc -fsanitize=undefined".
* lib/unictype/bidi_of.c (uc_bidi_class): Add cast, for clarity.
* lib/unictype/categ_of.c (lookup_withtable): Likewise.
* lib/unictype/joininggroup_of.c (uc_joining_group): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 08 Mar 2019 19:17:37 +0100 |
parents | 770a5696761e |
children |
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#! /bin/sh # Output a system dependent linker command for putting a relocatable library # search path into an executable. # # Copyright 2003-2019 Free Software Foundation, Inc. # Written by Bruno Haible <bruno@clisp.org>, 2003. # # 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 3 of the License, 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 <https://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. # # The first argument passed to this file is the canonical host specification, # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # The environment variable LD should be set by the caller. # # The second argument is a colon separated list of directories that contain # the libraries at installation time. # # The third argument is the directory into which the executable is going to be # installed. host="$1" host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` library_path_value=$2 installdir=$3 # Verify that installdir is absolute. case "$installdir" in /*) ;; *) echo "installdir is not absolute: $installdir" 1>&2 exit 1 ;; esac origin_token= case "$host_os" in linux* | gnu* | kfreebsd* | \ freebsd* | dragonfly* | \ netbsd* | \ openbsd* | \ solaris* | \ haiku*) origin_token='$ORIGIN' ;; darwin*) origin_token='@loader_path' ;; esac if test -n "$origin_token"; then rpath= save_IFS="$IFS"; IFS=":" for dir in $library_path_value; do IFS="$save_IFS" case "$dir" in /*) # Make dir relative to installdir. (Works only if dir is absolute.) idir="$installdir" while true; do dfirst=`echo "$dir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` ifirst=`echo "$idir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` if test -z "$dfirst" || test -z "$ifirst"; then break fi if test "$dfirst" != "$ifirst"; then break fi dir=`echo "$dir" | sed -e 's,^//*[^/]*,,'` idir=`echo "$idir" | sed -e 's,^//*[^/]*,,'` done dir="$origin_token"`echo "$idir" | sed -e 's,//*[^/]*,/..,g'`"$dir" # Add dir to rpath. rpath="${rpath}${rpath:+ }$dir" ;; *) if test -n "$dir"; then echo "libdir is not absolute: $dir" 1>&2 fi ;; esac done IFS="$save_IFS" # Output it. if test -n "$rpath"; then case "$host_os" in # At least some versions of FreeBSD, DragonFly, and OpenBSD need the # linker option "-z origin". See <https://lekensteyn.nl/rpath.html>. freebsd* | dragonfly* | openbsd*) echo "-Wl,-z,origin -Wl,-rpath,$rpath" ;; *) echo "-Wl,-rpath,$rpath" ;; esac fi else echo "relocation via rpath not supported on this system: $host" 1>&2 exit 1 fi exit 0