scripts/test-installation.pl

   1 #!/usr/bin/perl -w
   2 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4 # Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1997.
   5
   6 # The GNU C Library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Lesser General Public
   8 # License as published by the Free Software Foundation; either
   9 # version 2.1 of the License, or (at your option) any later version.
  10
  11 # The GNU C Library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Lesser General Public License for more details.
  15
  16 # You should have received a copy of the GNU Lesser General Public
  17 # License along with the GNU C Library; if not, see
  18 # <https://www.gnu.org/licenses/>.
  19
  20
  21 $PACKAGE = "libc";
  22 $progname = $0;
  23 if ($ENV{CC}) {
  24   $CC = $ENV{CC};
  25 } else {
  26   $CC= "gcc";
  27 }
  28 if ($ENV{LD_SO}) {
  29   $LD_SO = $ENV{LD_SO};
  30 } else {
  31   $LD_SO = "";
  32 }
  33
  34 sub usage {
  35   print "Usage: test-installation [soversions.mk]\n";
  36   print "  --help       print this help, then exit\n";
  37   print "  --version    print version number, then exit\n";
  38   exit 0;
  39 }
  40
  41 sub installation_problem {
  42   print "The script has found some problems with your installation!\n";
  43   print "Please read the FAQ and the README file and check the following:\n";
  44   print "- Did you change the gcc specs file (necessary after upgrading from\n";
  45   print "  Linux libc5)?\n";
  46   print "- Are there any symbolic links of the form libXXX.so to old libraries?\n";
  47   print "  Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong,\n";
  48   print "  libm.so should point to the newly installed glibc file - and there should be\n";
  49   print "  only one such link (check e.g. /lib and /usr/lib)\n";
  50   print "You should restart this script from your build directory after you've\n";
  51   print "fixed all problems!\n";
  52   print "Btw. the script doesn't work if you're installing GNU libc not as your\n";
  53   print "primary library!\n";
  54   exit 1;
  55 }
  56
  57 arglist: while (@ARGV) {
  58   if ($ARGV[0] eq "--v" || $ARGV[0] eq "--ve" || $ARGV[0] eq "--ver" ||
  59       $ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
  60       $ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
  61     print "test-installation (GNU $PACKAGE)\n";
  62     print "Copyright (C) 2021 Free Software Foundation, Inc.\n";
  63     print "This is free software; see the source for copying conditions.  There is NO\n";
  64     print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
  65     print "Written by Andreas Jaeger <aj\@arthur.rhein-neckar.de>\n";
  66
  67     exit 0;
  68   } elsif ($ARGV[0] eq "--h" || $ARGV[0] eq "--he" || $ARGV[0] eq "--hel" ||
  69            $ARGV[0] eq "--help") {
  70     &usage;
  71   } elsif ($ARGV[0] =~ /^-/) {
  72     print "$progname: unrecognized option `$ARGV[0]'\n";
  73     print "Try `$progname --help' for more information.\n";
  74     exit 1;
  75   } else {
  76     last arglist;
  77   }
  78 }
  79
  80 # We expect none or one argument.
  81 if ($#ARGV == -1) {
  82     $dir = ".";
  83     $soversions="soversions.mk";
  84     $config="config.make";
  85 } elsif ($#ARGV == 0) {
  86     if (-d $ARGV[0]) {
  87       $dir = $ARGV[0];
  88       $soversions = "$ARGV[0]/soversions.mk";
  89       $config = "$ARGV[0]/config.make";
  90     } else {
  91       $soversions = $dir = $ARGV[0];
  92       $dir =~ s!/?[^/]*/*$!!;
  93       $config = $dir . "/config.make";
  94     }
  95 } else {
  96     die "Wrong number of arguments.";
  97 }
  98
  99 if (system ("grep -q \"build-mathvec = yes\" $config") == 0) {
 100     $build_mathvec = 1;
 101 } else {
 102     $build_mathvec = 0;
 103 }
 104
 105 # Read names and versions of all shared libraries that are part of
 106 # glibc
 107 open SOVERSIONS, $soversions
 108   or die ("Couldn't open $soversions in build directory!");
 109
 110 $link_libs = "";
 111 %versions = ();
 112
 113 while (<SOVERSIONS>) {
 114   next if (/^all-sonames/);
 115   chop;
 116   if (/^lib/) {
 117     ($name, $version)= /^lib(.*)\.so-version=\.(.*)$/;
 118     # Filter out some libraries we don't want to link:
 119     # - nss_ldap since it's not yet available
 120     # - libdb1 since it conflicts with libdb
 121     # - libthread_db since it contains unresolved references
 122     # - it's just a test NSS module
 123     # - We don't provide the libgcc so we don't test it
 124     # - libmvec if it wasn't built
 125     next if ($build_mathvec == 0 && $name eq "mvec");
 126     if ($name ne "nss_ldap" && $name ne "db1"
 127         && $name ne "thread_db"
 128         && $name ne "nss_test1" && $name ne "libgcc_s") {
 129       $link_libs .= " -l$name";
 130       $versions{$name} = $version;
 131     }
 132   } elsif ($LD_SO ne "") {
 133     ($ld_so_name, $ld_so_version) = split ('\.so\.', $LD_SO);
 134   } else {
 135     if (/^ld\.so/) {
 136       ($ld_so_name, $ld_so_version)= /=(.*)\.so\.(.*)$/;
 137     }
 138   }
 139 }
 140
 141 close SOVERSIONS;
 142
 143 # Create test program and link it against all
 144 # shared libraries
 145
 146 open PRG, ">$dir/test-prg$$.c"
 147   or die ("Couldn't write test file $dir/test-prg$$.c");
 148
 149 print PRG '
 150 #include <stdio.h>
 151 #include <stdlib.h>
 152 int main(void) {
 153   printf ("Your new glibc installation seems to be ok.\n");
 154   exit (0);
 155 }
 156 ';
 157 close PRG;
 158
 159 open GCC, "$CC $dir/test-prg$$.c $link_libs -o $dir/test-prg$$ 2>&1 |"
 160   or die ("Couldn't execute $CC!");
 161
 162 while (<GCC>) {
 163   print $_ if (! /warning/);
 164 }
 165 close GCC;
 166 if ($?) {
 167   print "Execution of $CC failed!\n";
 168   &installation_problem;
 169 }
 170
 171 # Test if test program is linked against the right versions of
 172 # shared libraries
 173
 174 $ok = 1;
 175 %found = ();
 176
 177 open LDD, "ldd $dir/test-prg$$ |"
 178   or die ("Couldn't execute ldd");
 179 while (<LDD>) {
 180   if (/^\s*lib/) {
 181     ($name, $version1, $version2) =
 182       /^\s*lib(\w*)\.so\.([0-9\.]*)\s*=>.*\.so\.([0-9\.]*)/;
 183     $found{$name} = 1;
 184     if ($versions{$name} ne $version1 || $version1 ne $version2) {
 185       print "Library lib$name is not correctly installed.\n";
 186       print "Please check your installation!\n";
 187       print "Offending line of ldd output: $_\n";
 188       $ok = 0;
 189     }
 190   }
 191   if (/$ld_so_name/) {
 192     ($version1) = /$ld_so_name\.so\.([0-9\.]*)/;
 193     if ($version1 ne $ld_so_version) {
 194       print "The dynamic linker $ld_so_name.so is not correctly installed.\n";
 195       print "Please check your installation!\n";
 196       print "Offending line of ldd output: $_\n";
 197       $ok = 0;
 198     }
 199   }
 200 }
 201
 202 close LDD;
 203 die "ldd execution failed" if $?;
 204
 205 foreach (keys %versions) {
 206   unless ($found{$_}) {
 207     print "Library lib$_ is not correctly installed since the test program\n";
 208     print "was not linked dynamically against it.\n";
 209     print "Do you have a file/link lib$_.so?\n";
 210     $ok = 0;
 211   }
 212 }
 213
 214 &installation_problem unless $ok;
 215
 216 # Finally execute the test program
 217 system ("$dir/test-prg$$") == 0
 218   or die ("Execution of test program failed");
 219
 220 # Clean up after ourselves
 221 unlink ("$dir/test-prg$$", "$dir/test-prg$$.c");