mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-04-03 02:32:59 +02:00
512e111a92
One side-effect of this change is that "make check" now works even if you put "." early in your shell's search PATH (don't do that!). Remove all test-related Makefile.am files, except those generated by mk-script. Instead, tests/Makefile.am now lists not only the tests directly under tests/, but also those in tests/*/ that are not generated by mk-script, e.g., cp/abuse, cp/acl, mv/i-1, etc. A lot of these changes are like this: -. $srcdir/../lang-default +. $top_srcdir/tests/lang-default -. $srcdir/../test-lib.sh +. $top_srcdir/tests/test-lib.sh * configure.ac (AC_CONFIG_FILES): Remove corresponding Makefiles. * tests/check.mk (vc_exe_in_TESTS): Relax syntax requirements. * tests/rwx-to-mode: Remove file. Rewritten as... * tests/test-lib.sh (rwx_to_mode_): ...this new function. * tests/Makefile.am (EXTRA_DIST): Remove rwx-to-mode. (SUBDIRS): Remove each dir with a removed Makefile.am. (EXTRA_DIST): Add $(TESTS). (TESTS): Add over 300 entries.
75 lines
2.8 KiB
Bash
Executable File
75 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
|
|
# Detect printf(3) failure even when it doesn't set stream error indicator
|
|
|
|
# Copyright (C) 2007-2008 Free Software Foundation, Inc.
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
prog="$abs_top_builddir/src/printf"
|
|
|
|
if test "$VERBOSE" = yes; then
|
|
set -x
|
|
"$prog" --version
|
|
fi
|
|
|
|
. $top_srcdir/tests/test-lib.sh
|
|
require_ulimit_
|
|
|
|
fail=0
|
|
|
|
# Up to coreutils-6.9, "printf %.Nf 0" would encounter an ENOMEM internal
|
|
# error from glibc's printf(3) function whenever N was large relative to
|
|
# the size of available memory. As of Oct 2007, that internal stream-
|
|
# related failure was not reflected (for any libc I know of) in the usual
|
|
# stream error indicator that is tested by ferror. The result was that
|
|
# while the printf command obviously failed (generated no output),
|
|
# it mistakenly exited successfully (exit status of 0).
|
|
|
|
# Testing it is tricky, because there is so much variance
|
|
# in quality for this corner of printf(3) implementations.
|
|
# Most implementations do attempt to allocate N bytes of storage.
|
|
# Using the maximum value for N (2^31-1) causes glibc to try to
|
|
# allocate almost 2^64 bytes, while freeBSD 6.1's implementation
|
|
# correctly outputs almost 2GB worth of 0's, which takes too long.
|
|
# We want to test implementations that allocate N bytes, but without
|
|
# triggering the above extremes.
|
|
|
|
# The compromise is to limit virtual memory to something reasonable,
|
|
# and to make an N-byte-allocating-printf require more than that, thus
|
|
# triggering the printf(3) misbehavior -- which, btw, is required by ISO C99.
|
|
|
|
( ulimit -v 10000
|
|
"$prog" %20000000f 0 2>err | head -c 10 >out )
|
|
|
|
# Map this longer, and rarer, diagnostic to the common one.
|
|
# printf: cannot perform formatted output: Cannot allocate memory" \
|
|
sed 's/cannot perform .*/write error/' err > k && mv k err
|
|
case $(cat err) in
|
|
"$prog: write error") diagnostic=y ;;
|
|
'') diagnostic=n ;;
|
|
*) diagnostic=unexpected ;;
|
|
esac
|
|
n_out=$(wc -c < out)
|
|
|
|
case $n_out:$diagnostic in
|
|
10:n) ;; # ok, succeeds w/no diagnostic: FreeBSD 6.1
|
|
0:y) ;; # ok, glibc, when printf(3) fails with ENOMEM
|
|
|
|
# 10:y) ;; # Fail: doesn't happen: nobody succeeds with a diagnostic
|
|
# 0:n) ;; # Fail pre-patch: no output, no diag
|
|
*) fail=1;
|
|
esac
|
|
|
|
(exit $fail); exit $fail
|