From 172f72e45e65b254cba52107af840d2eefdaf754 Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Wed, 8 Feb 2023 18:11:04 +0100
Subject: [PATCH 187/187] 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 <carlos@redhat.com>
(cherry picked from commit 9fd63e35371b9939e9153907c6a753e6960b68ad)
---
elf/Makefile | 6 ++++
elf/tst-ldconfig-p.sh | 77 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 83 insertions(+)
create mode 100644 elf/tst-ldconfig-p.sh
diff --git a/elf/Makefile b/elf/Makefile
index 72178d33ffd6..48788fcdb884 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -634,6 +634,7 @@ 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
@@ -2403,6 +2404,11 @@ $(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 000000000000..ec937bf4ec04
--- /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
+# <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
--
2.39.1
