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Remove the ability to generate internal symbol table

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The internal symbol table cannot be generated when libtool is in use,
which is going to be a mandatory in the next commit.
This commit is contained in:
Ondřej Surý 2020-03-10 13:35:18 +01:00
parent e19117b5a9
commit c463808992
4 changed files with 0 additions and 197 deletions
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54
configure vendored
View File

@ -718,8 +718,6 @@ LIBTOOL_MKDEP_SED
SA SA
A A
O O
ALWAYS_MAKE_SYMTABLE
MKSYMTBL_PROGRAM
PURIFY PURIFY
purify_path purify_path
MKDEPPROG MKDEPPROG
@ -924,7 +922,6 @@ with_zlib
with_purify with_purify
with_gperftools_profiler with_gperftools_profiler
enable_backtrace enable_backtrace
enable_symtable
enable_tcp_fastopen enable_tcp_fastopen
with_readline with_readline
enable_isc_spnego enable_isc_spnego
@ -1631,8 +1628,6 @@ Optional Features:
--enable-fips-mode enable FIPS mode in OpenSSL library [default=no] --enable-fips-mode enable FIPS mode in OpenSSL library [default=no]
--enable-native-pkcs11 use native PKCS11 for public-key crypto [default=no] --enable-native-pkcs11 use native PKCS11 for public-key crypto [default=no]
--enable-backtrace log stack backtrace on abort [default=yes] --enable-backtrace log stack backtrace on abort [default=yes]
--enable-symtable use internal symbol table for backtrace
[all|minimal(default)|none]
--disable-tcp-fastopen disable TCP Fast Open support [default=yes] --disable-tcp-fastopen disable TCP Fast Open support [default=yes]
--disable-isc-spnego use SPNEGO from GSSAPI library --disable-isc-spnego use SPNEGO from GSSAPI library
--disable-chroot disable chroot --disable-chroot disable chroot
@ -12260,7 +12255,6 @@ if test "$enable_developer" = "yes"; then :
test "${enable_querytrace+set}" = set || enable_querytrace=yes test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${with_cmocka+set}" = set || with_cmocka=yes test "${with_cmocka+set}" = set || with_cmocka=yes
test "${with_dlz_filesystem+set}" = set || with_dlz_filesystem=yes test "${with_dlz_filesystem+set}" = set || with_dlz_filesystem=yes
test "${enable_symtable+set}" = set || enable_symtable=all
test "${enable_warn_error+set}" = set || enable_warn_error=yes test "${enable_warn_error+set}" = set || enable_warn_error=yes
test "${enable_warn_shadow+set}" = set || enable_warn_shadow=yes test "${enable_warn_shadow+set}" = set || enable_warn_shadow=yes
test "${with_zlib+set}" = set || with_zlib=yes test "${with_zlib+set}" = set || with_zlib=yes
@ -18768,50 +18762,6 @@ rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext conftest$ac_exeext conftest.$ac_ext
fi fi
# Check whether --enable-symtable was given.
if test "${enable_symtable+set}" = set; then :
enableval=$enable_symtable; want_symtable="$enableval"
else
want_symtable="minimal"
fi
case $want_symtable in
yes|all|minimal) # "yes" is a hidden value equivalent to "minimal"
if test "" = "$PERL"
then
as_fn_error $? "Internal symbol table requires perl but no perl is found.
Install perl or explicitly disable the feature by --disable-symtable." "$LINENO" 5
fi
if test "yes" = "$use_libtool"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Internal symbol table does not work with libtool. Disabling symbol table." >&5
$as_echo "$as_me: WARNING: Internal symbol table does not work with libtool. Disabling symbol table." >&2;}
else
# we generate the internal symbol table only for those systems
# known to work to avoid unexpected build failure. Also, warn
# about unsupported systems when the feature is enabled
# manually.
case $host_os in
freebsd*|netbsd*|openbsd*|linux*|solaris*|darwin*)
MKSYMTBL_PROGRAM="$PERL"
if test "all" = "$want_symtable"; then
ALWAYS_MAKE_SYMTABLE="yes"
fi
;;
*)
if test "yes" = "$want_symtable" -o "all" = "$want_symtable"
then
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: this system is not known to generate internal symbol table safely; disabling it" >&5
$as_echo "$as_me: WARNING: this system is not known to generate internal symbol table safely; disabling it" >&2;}
fi
esac
fi
;;
*)
;;
esac
# #
# File name extension for static archive files, for those few places # File name extension for static archive files, for those few places
# where they are treated differently from dynamic ones. # where they are treated differently from dynamic ones.
@ -26040,10 +25990,6 @@ report() {
echo " Allow 'fixed' rrset-order (--enable-fixed-rrset)" echo " Allow 'fixed' rrset-order (--enable-fixed-rrset)"
test "yes" = "$enable_backtrace" && \ test "yes" = "$enable_backtrace" && \
echo " Print backtrace on crash (--enable-backtrace)" echo " Print backtrace on crash (--enable-backtrace)"
test "minimal" = "$want_symtable" && \
echo " Use symbol table for backtrace, named only (--enable-symtable)"
test "yes" = "$want_symtable" -o "all" = "$want_symtable" && \
echo " Use symbol table for backtrace, all binaries (--enable-symtable=all)"
test "no" = "$use_libtool" || echo " Use GNU libtool (--with-libtool)" test "no" = "$use_libtool" || echo " Use GNU libtool (--with-libtool)"
test "yes" = "$want_querytrace" && \ test "yes" = "$want_querytrace" && \
echo " Very verbose query trace logging (--enable-querytrace)" echo " Very verbose query trace logging (--enable-querytrace)"

45
configure.ac
View File

@ -94,7 +94,6 @@ AS_IF([test "$enable_developer" = "yes"],
test "${enable_querytrace+set}" = set || enable_querytrace=yes test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${with_cmocka+set}" = set || with_cmocka=yes test "${with_cmocka+set}" = set || with_cmocka=yes
test "${with_dlz_filesystem+set}" = set || with_dlz_filesystem=yes test "${with_dlz_filesystem+set}" = set || with_dlz_filesystem=yes
test "${enable_symtable+set}" = set || enable_symtable=all
test "${enable_warn_error+set}" = set || enable_warn_error=yes test "${enable_warn_error+set}" = set || enable_warn_error=yes
test "${enable_warn_shadow+set}" = set || enable_warn_shadow=yes test "${enable_warn_shadow+set}" = set || enable_warn_shadow=yes
test "${with_zlib+set}" = set || with_zlib=yes test "${with_zlib+set}" = set || with_zlib=yes
@ -1476,46 +1475,6 @@ AS_IF([test "$enable_backtrace" = "yes"],
[AC_DEFINE([HAVE_LIBCTRACE], [1], [define if system have backtrace function])] [AC_DEFINE([HAVE_LIBCTRACE], [1], [define if system have backtrace function])]
)]) )])
AC_ARG_ENABLE(symtable,
AS_HELP_STRING([--enable-symtable],
[use internal symbol table for backtrace
[all|minimal(default)|none]]),
want_symtable="$enableval", want_symtable="minimal")
case $want_symtable in
yes|all|minimal) # "yes" is a hidden value equivalent to "minimal"
if test "" = "$PERL"
then
AC_MSG_ERROR([Internal symbol table requires perl but no perl is found.
Install perl or explicitly disable the feature by --disable-symtable.])
fi
if test "yes" = "$use_libtool"; then
AC_MSG_WARN([Internal symbol table does not work with libtool. Disabling symbol table.])
else
# we generate the internal symbol table only for those systems
# known to work to avoid unexpected build failure. Also, warn
# about unsupported systems when the feature is enabled
# manually.
case $host_os in
freebsd*|netbsd*|openbsd*|linux*|solaris*|darwin*)
MKSYMTBL_PROGRAM="$PERL"
if test "all" = "$want_symtable"; then
ALWAYS_MAKE_SYMTABLE="yes"
fi
;;
*)
if test "yes" = "$want_symtable" -o "all" = "$want_symtable"
then
AC_MSG_WARN([this system is not known to generate internal symbol table safely; disabling it])
fi
esac
fi
;;
*)
;;
esac
AC_SUBST(MKSYMTBL_PROGRAM)
AC_SUBST(ALWAYS_MAKE_SYMTABLE)
# #
# File name extension for static archive files, for those few places # File name extension for static archive files, for those few places
# where they are treated differently from dynamic ones. # where they are treated differently from dynamic ones.
@ -2943,10 +2902,6 @@ report() {
echo " Allow 'fixed' rrset-order (--enable-fixed-rrset)" echo " Allow 'fixed' rrset-order (--enable-fixed-rrset)"
test "yes" = "$enable_backtrace" && \ test "yes" = "$enable_backtrace" && \
echo " Print backtrace on crash (--enable-backtrace)" echo " Print backtrace on crash (--enable-backtrace)"
test "minimal" = "$want_symtable" && \
echo " Use symbol table for backtrace, named only (--enable-symtable)"
test "yes" = "$want_symtable" -o "all" = "$want_symtable" && \
echo " Use symbol table for backtrace, all binaries (--enable-symtable=all)"
test "no" = "$use_libtool" || echo " Use GNU libtool (--with-libtool)" test "no" = "$use_libtool" || echo " Use GNU libtool (--with-libtool)"
test "yes" = "$want_querytrace" && \ test "yes" = "$want_querytrace" && \
echo " Very verbose query trace logging (--enable-querytrace)" echo " Very verbose query trace logging (--enable-querytrace)"

1
util/copyrights
View File

@ -2589,7 +2589,6 @@
./util/mdnbuildtest.sh SH 2000,2001,2004,2007,2012,2016,2018,2019,2020 ./util/mdnbuildtest.sh SH 2000,2001,2004,2007,2012,2016,2018,2019,2020
./util/memleak.pl PERL 1999,2000,2001,2004,2007,2012,2016,2018,2019,2020 ./util/memleak.pl PERL 1999,2000,2001,2004,2007,2012,2016,2018,2019,2020
./util/merge_copyrights PERL 1998,1999,2000,2001,2003,2004,2005,2006,2007,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020 ./util/merge_copyrights PERL 1998,1999,2000,2001,2003,2004,2005,2006,2007,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020
./util/mksymtbl.pl PERL 2009,2012,2016,2018,2019,2020
./util/models.c C 2015,2016,2017,2018,2019,2020 ./util/models.c C 2015,2016,2017,2018,2019,2020
./util/nanny.pl PERL 2000,2001,2004,2007,2012,2016,2018,2019,2020 ./util/nanny.pl PERL 2000,2001,2004,2007,2012,2016,2018,2019,2020
./util/new-func PERL 2005,2007,2012,2016,2018,2019,2020 ./util/new-func PERL 2005,2007,2012,2016,2018,2019,2020

97
util/mksymtbl.pl
View File

@ -1,97 +0,0 @@
#!/usr/bin/env perl
#
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
use strict;
use diagnostics;
$^W = 1;
my $rev = '$Id$';
$rev =~ s/\$//g;
$rev =~ s/,v//g;
$rev =~ s/Id: //;
use Getopt::Std;
my %options;
getopts('i:o:', \%options);
my ($binname, $need_uscorefix, $outputfile, $nsyms, $ostype, $nm_prog);
my %symmap;
$binname = $ARGV[0];
$need_uscorefix = 0;
if ($options{'o'}) {
$outputfile = $options{'o'};
} else {
$outputfile = "symtbl.c";
}
# OS-depending configuration
$nm_prog = "nm";
$ostype = `uname -s`;
chop($ostype);
if ($options{'i'}) {
open(SYMBOLS, $options{'i'}) || die "failed to open $options{'i'}";
} else {
open(SYMBOLS, "$nm_prog $binname |") ||
die "failed to invoke utility to get symbols";
}
open(TBLFILE, ">$outputfile") || die "failed to open output file: $outputfile";
$nsyms = 0;
while (<SYMBOLS>) {
my ($addr, $symbol) = (0, "");
# *BSDs, Linux, etc.
if (/([0-9a-f]*)\s[tT]\s(.*)/) {
($addr, $symbol) = ($1, $2);
# heuristics: some compilers add a "_" to all program
# defined symbols. Detect and fix it for a well known
# symbol of "main".
$need_uscorefix = 1 if ($symbol eq "_main");
}
if ($symbol ne "") {
next if ($symmap{$addr});
$symmap{$addr} = $symbol;
$nsyms++;
}
}
sub lhex {
my $la = substr($a, -8);
my $lb = substr($b, -8);
my $ha = substr($a, 0, length($a) - length($la));
my $hb = substr($b, 0, length($b) - length($lb));
$ha = "0" if ($ha eq "");
$ha = "0" if ($hb eq "");
if (hex($ha) != hex($hb)) {
$la = $ha;
$lb = $hb;
}
hex($la) <=> hex($lb)
}
print TBLFILE "/*\n * Generated by $rev \n */\n";
print TBLFILE "#include <isc/backtrace.h>\n";
print TBLFILE "const int isc__backtrace_nsymbols = $nsyms;\n";
print TBLFILE "const isc_backtrace_symmap_t isc__backtrace_symtable[] = {\n";
foreach (sort lhex keys(%symmap)) {
my ($addr, $symbol) = ($_, $symmap{$_});
if ($need_uscorefix && $symbol =~ /^_(.*)/) {
$symbol = $1;
}
print TBLFILE "\t{ (void *)0x$addr, \"$symbol\" },\n";
}
print TBLFILE "\t{ (void *)0x0, \"\" },\n";
print TBLFILE "};\n";
close(TBLFILE);
close(SYMBOLS);