Re: segfault in errx

[Florian Weimer <fw@deneb.enyo.de>]

* Florian Weimer:

>> I can reproduce something like this with 2.24-3 on amd64.  valgrind
>> isn't very helpful.
>
> And it needs a UTF-8 locale (C.UTF-8 will do).  Another multi-byte
> locale may work as well.

Bisecting this with the attached script leads to:

commit 18d26750dd8fd328a78cf639fd0ec2494680a2a4
Author: Paul Pluzhnikov <ppluzhnikov@google.com>
Date:   Sun Mar 8 09:46:53 2015 -0700

    Cleanup: in preparation for fixing BZ #16734, fix memory leaks exposed by
    switching fopen()ed streams from mmap to malloc.

This commit has shown up in other context as well:

  <https://sourceware.org/bugzilla/show_bug.cgi?id=20598>

#!/bin/bash

set -x

unset LANG LANGUAGE LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY \
      LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT \
      LC_IDENTIFICATION LC_ALL

fatal () {
    exit 255
}

skip () {
    exit 255
}

run () {
    GCONV_PATH=./iconvdata LOCPATH=. ./elf/ld-linux-x86-64.so.2 --library-path .:./math:./elf:./dlfcn:./nss:./nis:./rt:./resolv:./crypt:./mathvec:./nptl "$@"
}

cd ../build || fatal
rm -rf ../build/* || fatal
../git/configure --prefix=/usr --disable-werror || skip
make -j12 || skip
run locale/localedef -f ../git/localedata/charmaps/UTF-8 -i ../git/localedata/locales/en_US "$PWD/en_US.UTF-8" || skip
LC_ALL=en_US.UTF-8 run /usr/bin/ul /tmp/ul.segf
case $? in
    1)
	exit 0
	;;
    139)
	exit 1
	;;
    *)
	fatal
	;;
esac