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commit 2d7550e6cfff541380d3a1f2ac33e76aaf1273de
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Wed Feb 8 18:11:04 2023 +0100
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elf: Smoke-test ldconfig -p against system /etc/ld.so.cache
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The test is sufficient to detect the ldconfig bug fixed in
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commit 9fe6f6363886aae6b2b210cae3ed1f5921299083 ("elf: Fix 64 time_t
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support for installed statically binaries").
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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(cherry picked from commit 9fd63e35371b9939e9153907c6a753e6960b68ad)
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diff --git a/elf/Makefile b/elf/Makefile
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index 3a8590e0d3cc33ab..0daa8a85ec1a1bc5 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -553,6 +553,7 @@ ifeq ($(run-built-tests),yes)
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tests-special += \
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$(objpfx)noload-mem.out \
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$(objpfx)tst-ldconfig-X.out \
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+ $(objpfx)tst-ldconfig-p.out \
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$(objpfx)tst-leaks1-mem.out \
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$(objpfx)tst-rtld-help.out \
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# tests-special
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@@ -2259,6 +2260,11 @@ $(objpfx)tst-ldconfig-X.out : tst-ldconfig-X.sh $(objpfx)ldconfig
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'$(run-program-env)' > $@; \
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$(evaluate-test)
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+$(objpfx)tst-ldconfig-p.out : tst-ldconfig-p.sh $(objpfx)ldconfig
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+ $(SHELL) $< '$(common-objpfx)' '$(test-wrapper-env)' \
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+ '$(run-program-env)' > $@; \
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+ $(evaluate-test)
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+
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# Test static linking of all the libraries we can possibly link
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# together. Note that in some configurations this may be less than the
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# complete list of libraries we build but we try to maxmimize this list.
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diff --git a/elf/tst-ldconfig-p.sh b/elf/tst-ldconfig-p.sh
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new file mode 100644
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index 0000000000000000..ec937bf4ec04e8c0
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--- /dev/null
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+++ b/elf/tst-ldconfig-p.sh
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@@ -0,0 +1,77 @@
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+#!/bin/sh
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+# Test that ldconfig -p prints something useful.
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+# Copyright (C) 2023 Free Software Foundation, Inc.
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+# This file is part of the GNU C Library.
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+
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+# The GNU C Library is free software; you can redistribute it and/or
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+# modify it under the terms of the GNU Lesser General Public
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+# License as published by the Free Software Foundation; either
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+# version 2.1 of the License, or (at your option) any later version.
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+
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+# The GNU C Library is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+# Lesser General Public License for more details.
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+
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+# You should have received a copy of the GNU Lesser General Public
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+# License along with the GNU C Library; if not, see
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+# <https://www.gnu.org/licenses/>.
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+
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+# Check that the newly built ldconfig -p can dump the system
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+# /etc/ld.so.cache file. This should always work even if the ABIs are
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+# not compatible, except in a cross-endian build (that presumably
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+# involves emulation when running ldconfig).
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+
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+common_objpfx=$1
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+test_wrapper_env=$2
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+run_program_env=$3
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+
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+if ! test -r /etc/ld.so.cache; then
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+ echo "warning: /etc/ld.so.cache does not exist, test skipped"
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+ exit 77
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+fi
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+
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+testout="${common_objpfx}elf/tst-ldconfig-p.out"
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+# Truncate file.
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+: > "$testout"
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+
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+${test_wrapper_env} \
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+${run_program_env} \
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+${common_objpfx}elf/ldconfig -p \
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+ $testroot/lib >>"$testout" 2>>"$testout"
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+status=$?
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+echo "info: ldconfig exit status: $status" >>"$testout"
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+
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+errors=0
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+case $status in
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+ (0)
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+ if head -n 1 "$testout" | \
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+ grep -q "libs found in cache \`/etc/ld.so.cache'\$" ; then
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+ echo "info: initial string found" >>"$testout"
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+ else
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+ echo "error: initial string not found" >>"$testout"
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+ errors=1
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+ fi
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+ if grep -q "^ libc\.so\..* => " "$testout"; then
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+ echo "info: libc.so.* string found" >>"$testout"
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+ else
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+ echo "error: libc.so.* string not found" >>"$testout"
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+ errors=1
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+ fi
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+ ;;
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+ (1)
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+ if head -n 1 "$testout" | \
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+ grep -q ": Cache file has wrong endianness\.$" ; then
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+ echo "info: cache file has wrong endianess" >> "$testout"
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+ else
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+ echo "error: unexpected ldconfig error message" >> "$testout"
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+ errors=1
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+ fi
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+ ;;
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+ (*)
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+ echo "error: unexpected exit status" >> "$testout"
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+ errors=1
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+ ;;
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+esac
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+
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+exit $errors
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