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a8dcffb306
The open_path stops if a relative path in search path contains a
component that is a non directory (for instance, if the component
is an existing file).
For instance:
$ cat > lib.c <<EOF
> void foo (void) {}
> EOF
$ gcc -shared -fPIC -o lib.so lib.c
$ cat > main.c <<EOF
extern void foo ();
int main () { foo (); return 0; }
EOF
$ gcc -o main main.c lib.so
$ LD_LIBRARY_PATH=. ./main
$ LD_LIBRARY_PATH=non-existing/path:. ./main
$ LD_LIBRARY_PATH=$(pwd)/main:. ./main
$ LD_LIBRARY_PATH=./main:. ./main
./main: error while loading shared libraries: lib.so: cannot open shared object file: No such file or directory
The invalid './main' should be ignored as a non-existent one,
instead as a valid but non accessible file.
Absolute paths do not trigger this issue because their status are
initialized as 'unknown' and open_path check if this is a directory.
Checked on x86_64-linux-gnu.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
78 lines
2.5 KiB
Bash
Executable File
78 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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# Test if library search path does not terminates with non-directory
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# components.
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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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set -e
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rtld=$1
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test_program=$2
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test_wrapper_env=$3
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run_program_env=$4
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# Remove the last space to allow concatenate extra paths.
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library_path=$(echo $5)
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objpfx=$6
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test_binary=$(basename ${test_program})
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test_libpath=${test_binary}-x
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mkdir -p ${objpfx}/${test_libpath}
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mv ${objpfx}/tst-non-directory-mod.so ${objpfx}/${test_libpath}
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# Check with absolute paths.
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${test_wrapper_env} \
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${run_program_env} \
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$rtld --inhibit-cache \
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--library-path \
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"$library_path":"${objpfx}"tst-non-directory-invalid:"${objpfx}"${test_libpath} \
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$test_program 2>&1 && rc=0 || rc=$?
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${test_wrapper_env} \
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${run_program_env} \
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$rtld --inhibit-cache \
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--library-path \
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"$library_path":"${objpfx}"${test_binary}:"${objpfx}"${test_libpath} \
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$test_program 2>&1 && rc=0 || rc=$?
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# Relative paths along with non-existent path in search list.
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cd "$objpfx"
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${test_wrapper_env} \
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${run_program_env} \
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$rtld --inhibit-cache \
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--library-path \
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"$library_path":../elf/tst-non-directory-invalid::../elf/${test_libpath} \
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$test_program 2>&1 && rc=0 || rc=$?
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# Relative paths along with component in the path is not a directory in search list.
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${test_wrapper_env} \
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${run_program_env} \
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$rtld --inhibit-cache \
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--library-path \
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"$library_path":../elf/${test_binary}:../elf/${test_libpath} \
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$test_program 2>&1 && rc=0 || rc=$?
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# Relative paths along with non-existent path and a component in the path that is not a directory.
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${test_wrapper_env} \
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${run_program_env} \
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$rtld --inhibit-cache \
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--library-path \
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"$library_path":../elf/tst-non-directory-invalid:../elf/${test_binary}:../elf/${test_libpath} \
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$test_program 2>&1 && rc=0 || rc=$?
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exit $rc
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