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# Copyright (C) 2018-2020 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
# This awk script expects to get command-line files that are each
# the output of 'readelf -W --dyn-syms' on a single shared object.
# It exits successfully (0) if none contained _init nor _fini in dynamic
# symbol table.
# It fails (1) if any did contain _init or _fini in dynamic symbol table.
# It fails (2) if the input did not take the expected form.
BEGIN { result = _init = _fini = sanity = 0 }
function check_one(name) {
if (!sanity) {
print name ": *** input did not look like readelf -d output";
result = 2;
} else {
ok = 1;
if (_init) {
print name ": *** _init is in dynamic symbol table";
result = result ? result : 1;
ok = 0;
}
if (_fini) {
print name ": *** _fini is in dynamic symbol table";
result = result ? result : 1;
ok = 0;
}
if (ok)
print name ": OK";
}
_init = _fini = sanity = 0
}
FILENAME != lastfile {
if (lastfile)
check_one(lastfile);
lastfile = FILENAME;
}
$1 == "Symbol" && $2 == "table" && $3 == "'.dynsym'" { sanity = 1 }
$8 == "_init" { _init = 1 }
$8 == "_fini" { _fini = 1 }
END {
check_one(lastfile);
exit(result);
}
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