commit 2d7550e6cfff541380d3a1f2ac33e76aaf1273de Author: Florian Weimer Date: Wed Feb 8 18:11:04 2023 +0100 elf: Smoke-test ldconfig -p against system /etc/ld.so.cache The test is sufficient to detect the ldconfig bug fixed in commit 9fe6f6363886aae6b2b210cae3ed1f5921299083 ("elf: Fix 64 time_t support for installed statically binaries"). Reviewed-by: Carlos O'Donell (cherry picked from commit 9fd63e35371b9939e9153907c6a753e6960b68ad) diff --git a/elf/Makefile b/elf/Makefile index 3a8590e0d3cc33ab..0daa8a85ec1a1bc5 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -553,6 +553,7 @@ 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 @@ -2259,6 +2260,11 @@ $(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. diff --git a/elf/tst-ldconfig-p.sh b/elf/tst-ldconfig-p.sh new file mode 100644 index 0000000000000000..ec937bf4ec04e8c0 --- /dev/null +++ b/elf/tst-ldconfig-p.sh @@ -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 +# . + +# 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