scripts/test-installation.pl

   1 #!/usr/bin/perl -w
   2 # Copyright (C) 1997-2023 Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4
   5 # The GNU C Library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2.1 of the License, or (at your option) any later version.
   9
  10 # The GNU C Library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with the GNU C Library; if not, see
  17 # <https://www.gnu.org/licenses/>.
  18
  19
  20 $PACKAGE = "libc";
  21 $progname = $0;
  22 if ($ENV{CC}) {
  23   $CC = $ENV{CC};
  24 } else {
  25   $CC= "gcc";
  26 }
  27 if ($ENV{LD_SO}) {
  28   $LD_SO = $ENV{LD_SO};
  29 } else {
  30   $LD_SO = "";
  31 }
  32
  33 sub usage {
  34   print "Usage: test-installation [soversions.mk]\n";
  35   print "  --help       print this help, then exit\n";
  36   print "  --version    print version number, then exit\n";
  37   exit 0;
  38 }
  39
  40 sub installation_problem {
  41   print "The script has found some problems with your installation!\n";
  42   print "Please read the FAQ and the README file and check the following:\n";
  43   print "- Did you change the gcc specs file (necessary after upgrading from\n";
  44   print "  Linux libc5)?\n";
  45   print "- Are there any symbolic links of the form libXXX.so to old libraries?\n";
  46   print "  Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong,\n";
  47   print "  libm.so should point to the newly installed glibc file - and there should be\n";
  48   print "  only one such link (check e.g. /lib and /usr/lib)\n";
  49   print "You should restart this script from your build directory after you've\n";
  50   print "fixed all problems!\n";
  51   print "Btw. the script doesn't work if you're installing GNU libc not as your\n";
  52   print "primary library!\n";
  53   exit 1;
  54 }
  55
  56 arglist: while (@ARGV) {
  57   if ($ARGV[0] eq "--v" || $ARGV[0] eq "--ve" || $ARGV[0] eq "--ver" ||
  58       $ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
  59       $ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
  60     print "test-installation (GNU $PACKAGE)\n";
  61     print "Copyright (C) 2023 Free Software Foundation, Inc.\n";
  62     print "This is free software; see the source for copying conditions.  There is NO\n";
  63     print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
  64     print "Written by Andreas Jaeger <aj\@arthur.rhein-neckar.de>\n";
  65
  66     exit 0;
  67   } elsif ($ARGV[0] eq "--h" || $ARGV[0] eq "--he" || $ARGV[0] eq "--hel" ||
  68            $ARGV[0] eq "--help") {
  69     &usage;
  70   } elsif ($ARGV[0] =~ /^-/) {
  71     print "$progname: unrecognized option `$ARGV[0]'\n";
  72     print "Try `$progname --help' for more information.\n";
  73     exit 1;
  74   } else {
  75     last arglist;
  76   }
  77 }
  78
  79 # We expect none or one argument.
  80 if ($#ARGV == -1) {
  81     $dir = ".";
  82     $soversions="soversions.mk";
  83     $config="config.make";
  84 } elsif ($#ARGV == 0) {
  85     if (-d $ARGV[0]) {
  86       $dir = $ARGV[0];
  87       $soversions = "$ARGV[0]/soversions.mk";
  88       $config = "$ARGV[0]/config.make";
  89     } else {
  90       $soversions = $dir = $ARGV[0];
  91       $dir =~ s!/?[^/]*/*$!!;
  92       $config = $dir . "/config.make";
  93     }
  94 } else {
  95     die "Wrong number of arguments.";
  96 }
  97
  98 if (system ("grep -q \"build-mathvec = yes\" $config") == 0) {
  99     $build_mathvec = 1;
 100 } else {
 101     $build_mathvec = 0;
 102 }
 103
 104 # Read names and versions of all shared libraries that are part of
 105 # glibc
 106 open SOVERSIONS, $soversions
 107   or die ("Couldn't open $soversions in build directory!");
 108
 109 $link_libs = "";
 110 %versions = ();
 111
 112 while (<SOVERSIONS>) {
 113   next if (/^all-sonames/);
 114   chop;
 115   if (/^lib/) {
 116     ($name, $version)= /^lib(.*)\.so-version=\.(.*)$/;
 117     # Filter out some libraries we don't want to link:
 118     # - nss_ldap since it's not yet available
 119     # - libdb1 since it conflicts with libdb
 120     # - libthread_db since it contains unresolved references
 121     # - it's just a test NSS module
 122     # - We don't provide the libgcc so we don't test it
 123     # - libmvec if it wasn't built
 124     next if ($build_mathvec == 0 && $name eq "mvec");
 125     if ($name ne "nss_ldap" && $name ne "db1"
 126         && $name ne "thread_db"
 127         && $name ne "nss_test1" && $name ne "libgcc_s") {
 128       $link_libs .= " -l$name";
 129       $versions{$name} = $version;
 130     }
 131   } elsif ($LD_SO ne "") {
 132     ($ld_so_name, $ld_so_version) = split ('\.so\.', $LD_SO);
 133   } else {
 134     if (/^ld\.so/) {
 135       ($ld_so_name, $ld_so_version)= /=(.*)\.so\.(.*)$/;
 136     }
 137   }
 138 }
 139
 140 close SOVERSIONS;
 141
 142 # Create test program and link it against all
 143 # shared libraries
 144
 145 open PRG, ">$dir/test-prg$$.c"
 146   or die ("Couldn't write test file $dir/test-prg$$.c");
 147
 148 print PRG '
 149 #include <stdio.h>
 150 #include <stdlib.h>
 151 int main(void) {
 152   printf ("Your new glibc installation seems to be ok.\n");
 153   exit (0);
 154 }
 155 ';
 156 close PRG;
 157
 158 open GCC, "$CC $dir/test-prg$$.c $link_libs -o $dir/test-prg$$ 2>&1 |"
 159   or die ("Couldn't execute $CC!");
 160
 161 while (<GCC>) {
 162   print $_ if (! /warning/);
 163 }
 164 close GCC;
 165 if ($?) {
 166   print "Execution of $CC failed!\n";
 167   &installation_problem;
 168 }
 169
 170 # Test if test program is linked against the right versions of
 171 # shared libraries
 172
 173 $ok = 1;
 174 %found = ();
 175
 176 open LDD, "ldd $dir/test-prg$$ |"
 177   or die ("Couldn't execute ldd");
 178 while (<LDD>) {
 179   if (/^\s*lib/) {
 180     ($name, $version1, $version2) =
 181       /^\s*lib(\w*)\.so\.([0-9\.]*)\s*=>.*\.so\.([0-9\.]*)/;
 182     $found{$name} = 1;
 183     if ($versions{$name} ne $version1 || $version1 ne $version2) {
 184       print "Library lib$name is not correctly installed.\n";
 185       print "Please check your installation!\n";
 186       print "Offending line of ldd output: $_\n";
 187       $ok = 0;
 188     }
 189   }
 190   if (/$ld_so_name/) {
 191     ($version1) = /$ld_so_name\.so\.([0-9\.]*)/;
 192     if ($version1 ne $ld_so_version) {
 193       print "The dynamic linker $ld_so_name.so is not correctly installed.\n";
 194       print "Please check your installation!\n";
 195       print "Offending line of ldd output: $_\n";
 196       $ok = 0;
 197     }
 198   }
 199 }
 200
 201 close LDD;
 202 die "ldd execution failed" if $?;
 203
 204 foreach (keys %versions) {
 205   unless ($found{$_}) {
 206     print "Library lib$_ is not correctly installed since the test program\n";
 207     print "was not linked dynamically against it.\n";
 208     print "Do you have a file/link lib$_.so?\n";
 209     $ok = 0;
 210   }
 211 }
 212
 213 &installation_problem unless $ok;
 214
 215 # Finally execute the test program
 216 system ("$dir/test-prg$$") == 0
 217   or die ("Execution of test program failed");
 218
 219 # Clean up after ourselves
 220 unlink ("$dir/test-prg$$", "$dir/test-prg$$.c");