elf: Smoke-test ldconfig -p against system /etc/ld.so.cache

The test is sufficient to detect the ldconfig bug fixed in
commit 9fe6f63638 ("elf: Fix 64 time_t
support for installed statically binaries").

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 9fd63e3537)
This commit is contained in:
Florian Weimer 2023-02-08 18:11:04 +01:00
parent 11ad405fd4
commit 2d7550e6cf
2 changed files with 83 additions and 0 deletions

View File

@ -537,6 +537,7 @@ ifeq ($(run-built-tests),yes)
tests-special += \
$(objpfx)noload-mem.out \
$(objpfx)tst-ldconfig-X.out \
$(objpfx)tst-ldconfig-p.out \
$(objpfx)tst-leaks1-mem.out \
$(objpfx)tst-rtld-help.out \
# tests-special
@ -2214,6 +2215,11 @@ $(objpfx)tst-ldconfig-X.out : tst-ldconfig-X.sh $(objpfx)ldconfig
'$(run-program-env)' > $@; \
$(evaluate-test)
$(objpfx)tst-ldconfig-p.out : tst-ldconfig-p.sh $(objpfx)ldconfig
$(SHELL) $< '$(common-objpfx)' '$(test-wrapper-env)' \
'$(run-program-env)' > $@; \
$(evaluate-test)
# Test static linking of all the libraries we can possibly link
# together. Note that in some configurations this may be less than the
# complete list of libraries we build but we try to maxmimize this list.

77
elf/tst-ldconfig-p.sh Normal file
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@ -0,0 +1,77 @@
#!/bin/sh
# Test that ldconfig -p prints something useful.
# Copyright (C) 2023 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/>.
# Check that the newly built ldconfig -p can dump the system
# /etc/ld.so.cache file. This should always work even if the ABIs are
# not compatible, except in a cross-endian build (that presumably
# involves emulation when running ldconfig).
common_objpfx=$1
test_wrapper_env=$2
run_program_env=$3
if ! test -r /etc/ld.so.cache; then
echo "warning: /etc/ld.so.cache does not exist, test skipped"
exit 77
fi
testout="${common_objpfx}elf/tst-ldconfig-p.out"
# Truncate file.
: > "$testout"
${test_wrapper_env} \
${run_program_env} \
${common_objpfx}elf/ldconfig -p \
$testroot/lib >>"$testout" 2>>"$testout"
status=$?
echo "info: ldconfig exit status: $status" >>"$testout"
errors=0
case $status in
(0)
if head -n 1 "$testout" | \
grep -q "libs found in cache \`/etc/ld.so.cache'\$" ; then
echo "info: initial string found" >>"$testout"
else
echo "error: initial string not found" >>"$testout"
errors=1
fi
if grep -q "^ libc\.so\..* => " "$testout"; then
echo "info: libc.so.* string found" >>"$testout"
else
echo "error: libc.so.* string not found" >>"$testout"
errors=1
fi
;;
(1)
if head -n 1 "$testout" | \
grep -q ": Cache file has wrong endianness\.$" ; then
echo "info: cache file has wrong endianess" >> "$testout"
else
echo "error: unexpected ldconfig error message" >> "$testout"
errors=1
fi
;;
(*)
echo "error: unexpected exit status" >> "$testout"
errors=1
;;
esac
exit $errors