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-rw-r--r--.SRCINFO13
-rw-r--r--PKGBUILD46
-rw-r--r--glibc-2.22-CVE-2015-7547.patch572
-rw-r--r--glibc-2.22-roundup.patch2103
4 files changed, 2685 insertions, 49 deletions
diff --git a/.SRCINFO b/.SRCINFO
index 277865f7cd8..055f91feeda 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,24 +1,23 @@
+# Generated by mksrcinfo v8
+# Fri Feb 26 04:07:15 UTC 2016
pkgbase = libx32-glibc
pkgdesc = GNU C Library (x32 ABI)
- pkgver = 2.22
- pkgrel = 3.1
+ pkgver = 2.23
+ pkgrel = 1.1
url = http://www.gnu.org/software/libc
arch = x86_64
license = GPL
license = LGPL
makedepends = gcc-multilib-x32>=5.2
+ makedepends = git
provides = glibc-x32-seed
conflicts = glibc-x32-seed
options = !strip
options = staticlibs
options = !emptydirs
- source = http://ftp.gnu.org/gnu/libc/glibc-2.22.tar.xz
- source = http://ftp.gnu.org/gnu/libc/glibc-2.22.tar.xz.sig
- source = glibc-2.22-roundup.patch
+ source = git://sourceware.org/git/glibc.git#commit=e742928c
source = libx32-glibc.conf
- md5sums = e51e02bf552a0a1fbbdc948fb2f5e83c
md5sums = SKIP
- md5sums = b6b7a0e8d6e6520e40e3164ae773631d
md5sums = 34a4169d2bdc5a3eb83676a0831aae57
pkgname = libx32-glibc
diff --git a/PKGBUILD b/PKGBUILD
index b66913908f4..6a42c899186 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,4 +1,4 @@
-# $Id: PKGBUILD 144552 2015-10-21 09:06:37Z heftig $
+# $Id: PKGBUILD 163138 2016-02-22 12:25:28Z allan $
# Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor: Jan de Groot <jgc@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>
@@ -7,18 +7,17 @@
# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
# NOTE: valgrind-multilib requires rebuild with each major glibc version
-
-_pkgbasename=glibc
-pkgname=libx32-$_pkgbasename
-pkgver=2.22
-pkgrel=3.1
+pkgname=libx32-glibc
+pkgver=2.23
+pkgrel=1.1
+_commit=e742928c
pkgdesc="GNU C Library (x32 ABI)"
arch=('x86_64')
url="http://www.gnu.org/software/libc"
license=('GPL' 'LGPL')
groups=()
depends=()
-makedepends=('gcc-multilib-x32>=5.2')
+makedepends=('gcc-multilib-x32>=5.2' 'git')
backup=()
conflicts=('glibc-x32-seed')
provides=('glibc-x32-seed')
@@ -26,26 +25,18 @@ provides=('glibc-x32-seed')
options=('!strip' 'staticlibs' '!emptydirs')
-source=(http://ftp.gnu.org/gnu/libc/${_pkgbasename}-${pkgver}.tar.xz{,.sig}
- glibc-2.22-roundup.patch
+source=(git://sourceware.org/git/glibc.git#commit=${_commit}
libx32-glibc.conf)
-md5sums=('e51e02bf552a0a1fbbdc948fb2f5e83c'
- 'SKIP'
- 'b6b7a0e8d6e6520e40e3164ae773631d'
+
+md5sums=('SKIP'
'34a4169d2bdc5a3eb83676a0831aae57')
-validpgpkeys=('F37CDAB708E65EA183FD1AF625EF0A436C2A4AFF') # Carlos O'Donell
prepare() {
- cd ${srcdir}/glibc-${pkgver}
-
- # glibc-2.21..01b07c70
- patch -p1 -i $srcdir/glibc-2.22-roundup.patch
-
- mkdir ${srcdir}/glibc-build
+ mkdir glibc-build
}
build() {
- cd ${srcdir}/glibc-build
+ cd glibc-build
#if [[ ${CARCH} = "i686" ]]; then
# Hack to fix NPTL issues with Xen, only required on 32bit platforms
@@ -74,7 +65,7 @@ build() {
CFLAGS=${CFLAGS/-fstack-protector-strong/}
CPPFLAGS=${CPPFLAGS/-D_FORTIFY_SOURCE=2/}
- ${srcdir}/${_pkgbasename}-${pkgver}/configure --prefix=/usr \
+ ../glibc/configure --prefix=/usr \
--libdir=/usr/libx32 --libexecdir=/usr/libx32 \
--with-headers=/usr/include \
--with-bugurl=https://bugs.archlinux.org/ \
@@ -100,11 +91,11 @@ build() {
make
# remove harding in preparation to run test-suite
- sed -i '5,7d' configparms
+ sed -i '/FORTIFY/d' configparms
}
check() {
- cd ${srcdir}/glibc-build
+ cd glibc-build
if [ -x "/opt/gcc-x32-seed/bin/gcc" ]; then
make check || true
@@ -115,10 +106,7 @@ check() {
}
package() {
- cd ${srcdir}/glibc-build
-
-
-
+ cd glibc-build
make install_root=${pkgdir} install
@@ -127,7 +115,6 @@ package() {
# We need to keep x32 ABI specific header files
find ${pkgdir}/usr/include -type f -not -name '*-x32.h' -delete
-
# Dynamic linker
mkdir ${pkgdir}/usr/lib
ln -s ../libx32/ld-linux-x32.so.2 ${pkgdir}/usr/lib/
@@ -143,9 +130,6 @@ package() {
# in addition libcrypt appears widely required
rm $pkgdir/usr/libx32/lib{anl,BrokenLocale,nsl,resolv,rt,util}.a
-
-
-
# Do not strip the following files for improved debugging support
# ("improved" as in not breaking gdb and valgrind...):
# ld-${pkgver}.so
diff --git a/glibc-2.22-CVE-2015-7547.patch b/glibc-2.22-CVE-2015-7547.patch
new file mode 100644
index 00000000000..525ee4990ce
--- /dev/null
+++ b/glibc-2.22-CVE-2015-7547.patch
@@ -0,0 +1,572 @@
+CVE-2015-7547
+
+2016-02-15 Carlos O'Donell <carlos@redhat.com>
+
+ [BZ #18665]
+ * resolv/nss_dns/dns-host.c (gaih_getanswer_slice): Always set
+ *herrno_p.
+ (gaih_getanswer): Document functional behviour. Return tryagain
+ if any result is tryagain.
+ * resolv/res_query.c (__libc_res_nsearch): Set buffer size to zero
+ when freed.
+ * resolv/res_send.c: Add copyright text.
+ (__libc_res_nsend): Document that MAXPACKET is expected.
+ (send_vc): Document. Remove buffer reuse.
+ (send_dg): Document. Remove buffer reuse. Set *thisanssizp to set the
+ size of the buffer. Add Dprint for truncated UDP buffer.
+
+diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
+index a255d5e..47cfe27 100644
+--- a/resolv/nss_dns/dns-host.c
++++ b/resolv/nss_dns/dns-host.c
+@@ -1031,7 +1031,10 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
+ int h_namelen = 0;
+
+ if (ancount == 0)
+- return NSS_STATUS_NOTFOUND;
++ {
++ *h_errnop = HOST_NOT_FOUND;
++ return NSS_STATUS_NOTFOUND;
++ }
+
+ while (ancount-- > 0 && cp < end_of_message && had_error == 0)
+ {
+@@ -1208,7 +1211,14 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
+ /* Special case here: if the resolver sent a result but it only
+ contains a CNAME while we are looking for a T_A or T_AAAA record,
+ we fail with NOTFOUND instead of TRYAGAIN. */
+- return canon == NULL ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
++ if (canon != NULL)
++ {
++ *h_errnop = HOST_NOT_FOUND;
++ return NSS_STATUS_NOTFOUND;
++ }
++
++ *h_errnop = NETDB_INTERNAL;
++ return NSS_STATUS_TRYAGAIN;
+ }
+
+
+@@ -1222,11 +1232,101 @@ gaih_getanswer (const querybuf *answer1, int anslen1, const querybuf *answer2,
+
+ enum nss_status status = NSS_STATUS_NOTFOUND;
+
++ /* Combining the NSS status of two distinct queries requires some
++ compromise and attention to symmetry (A or AAAA queries can be
++ returned in any order). What follows is a breakdown of how this
++ code is expected to work and why. We discuss only SUCCESS,
++ TRYAGAIN, NOTFOUND and UNAVAIL, since they are the only returns
++ that apply (though RETURN and MERGE exist). We make a distinction
++ between TRYAGAIN (recoverable) and TRYAGAIN' (not-recoverable).
++ A recoverable TRYAGAIN is almost always due to buffer size issues
++ and returns ERANGE in errno and the caller is expected to retry
++ with a larger buffer.
++
++ Lastly, you may be tempted to make significant changes to the
++ conditions in this code to bring about symmetry between responses.
++ Please don't change anything without due consideration for
++ expected application behaviour. Some of the synthesized responses
++ aren't very well thought out and sometimes appear to imply that
++ IPv4 responses are always answer 1, and IPv6 responses are always
++ answer 2, but that's not true (see the implemetnation of send_dg
++ and send_vc to see response can arrive in any order, particlarly
++ for UDP). However, we expect it holds roughly enough of the time
++ that this code works, but certainly needs to be fixed to make this
++ a more robust implementation.
++
++ ----------------------------------------------
++ | Answer 1 Status / | Synthesized | Reason |
++ | Answer 2 Status | Status | |
++ |--------------------------------------------|
++ | SUCCESS/SUCCESS | SUCCESS | [1] |
++ | SUCCESS/TRYAGAIN | TRYAGAIN | [5] |
++ | SUCCESS/TRYAGAIN' | SUCCESS | [1] |
++ | SUCCESS/NOTFOUND | SUCCESS | [1] |
++ | SUCCESS/UNAVAIL | SUCCESS | [1] |
++ | TRYAGAIN/SUCCESS | TRYAGAIN | [2] |
++ | TRYAGAIN/TRYAGAIN | TRYAGAIN | [2] |
++ | TRYAGAIN/TRYAGAIN' | TRYAGAIN | [2] |
++ | TRYAGAIN/NOTFOUND | TRYAGAIN | [2] |
++ | TRYAGAIN/UNAVAIL | TRYAGAIN | [2] |
++ | TRYAGAIN'/SUCCESS | SUCCESS | [3] |
++ | TRYAGAIN'/TRYAGAIN | TRYAGAIN | [3] |
++ | TRYAGAIN'/TRYAGAIN' | TRYAGAIN' | [3] |
++ | TRYAGAIN'/NOTFOUND | TRYAGAIN' | [3] |
++ | TRYAGAIN'/UNAVAIL | UNAVAIL | [3] |
++ | NOTFOUND/SUCCESS | SUCCESS | [3] |
++ | NOTFOUND/TRYAGAIN | TRYAGAIN | [3] |
++ | NOTFOUND/TRYAGAIN' | TRYAGAIN' | [3] |
++ | NOTFOUND/NOTFOUND | NOTFOUND | [3] |
++ | NOTFOUND/UNAVAIL | UNAVAIL | [3] |
++ | UNAVAIL/SUCCESS | UNAVAIL | [4] |
++ | UNAVAIL/TRYAGAIN | UNAVAIL | [4] |
++ | UNAVAIL/TRYAGAIN' | UNAVAIL | [4] |
++ | UNAVAIL/NOTFOUND | UNAVAIL | [4] |
++ | UNAVAIL/UNAVAIL | UNAVAIL | [4] |
++ ----------------------------------------------
++
++ [1] If the first response is a success we return success.
++ This ignores the state of the second answer and in fact
++ incorrectly sets errno and h_errno to that of the second
++ answer. However because the response is a success we ignore
++ *errnop and *h_errnop (though that means you touched errno on
++ success). We are being conservative here and returning the
++ likely IPv4 response in the first answer as a success.
++
++ [2] If the first response is a recoverable TRYAGAIN we return
++ that instead of looking at the second response. The
++ expectation here is that we have failed to get an IPv4 response
++ and should retry both queries.
++
++ [3] If the first response was not a SUCCESS and the second
++ response is not NOTFOUND (had a SUCCESS, need to TRYAGAIN,
++ or failed entirely e.g. TRYAGAIN' and UNAVAIL) then use the
++ result from the second response, otherwise the first responses
++ status is used. Again we have some odd side-effects when the
++ second response is NOTFOUND because we overwrite *errnop and
++ *h_errnop that means that a first answer of NOTFOUND might see
++ its *errnop and *h_errnop values altered. Whether it matters
++ in practice that a first response NOTFOUND has the wrong
++ *errnop and *h_errnop is undecided.
++
++ [4] If the first response is UNAVAIL we return that instead of
++ looking at the second response. The expectation here is that
++ it will have failed similarly e.g. configuration failure.
++
++ [5] Testing this code is complicated by the fact that truncated
++ second response buffers might be returned as SUCCESS if the
++ first answer is a SUCCESS. To fix this we add symmetry to
++ TRYAGAIN with the second response. If the second response
++ is a recoverable error we now return TRYAGIN even if the first
++ response was SUCCESS. */
++
+ if (anslen1 > 0)
+ status = gaih_getanswer_slice(answer1, anslen1, qname,
+ &pat, &buffer, &buflen,
+ errnop, h_errnop, ttlp,
+ &first);
++
+ if ((status == NSS_STATUS_SUCCESS || status == NSS_STATUS_NOTFOUND
+ || (status == NSS_STATUS_TRYAGAIN
+ /* We want to look at the second answer in case of an
+@@ -1242,8 +1342,15 @@ gaih_getanswer (const querybuf *answer1, int anslen1, const querybuf *answer2,
+ &pat, &buffer, &buflen,
+ errnop, h_errnop, ttlp,
+ &first);
++ /* Use the second response status in some cases. */
+ if (status != NSS_STATUS_SUCCESS && status2 != NSS_STATUS_NOTFOUND)
+ status = status2;
++ /* Do not return a truncated second response (unless it was
++ unavoidable e.g. unrecoverable TRYAGAIN). */
++ if (status == NSS_STATUS_SUCCESS
++ && (status2 == NSS_STATUS_TRYAGAIN
++ && *errnop == ERANGE && *h_errnop != NO_RECOVERY))
++ status = NSS_STATUS_TRYAGAIN;
+ }
+
+ return status;
+diff --git a/resolv/res_query.c b/resolv/res_query.c
+index 4a9b3b3..95470a9 100644
+--- a/resolv/res_query.c
++++ b/resolv/res_query.c
+@@ -396,6 +396,7 @@ __libc_res_nsearch(res_state statp,
+ {
+ free (*answerp2);
+ *answerp2 = NULL;
++ *nanswerp2 = 0;
+ *answerp2_malloced = 0;
+ }
+ }
+@@ -447,6 +448,7 @@ __libc_res_nsearch(res_state statp,
+ {
+ free (*answerp2);
+ *answerp2 = NULL;
++ *nanswerp2 = 0;
+ *answerp2_malloced = 0;
+ }
+
+@@ -521,6 +523,7 @@ __libc_res_nsearch(res_state statp,
+ {
+ free (*answerp2);
+ *answerp2 = NULL;
++ *nanswerp2 = 0;
+ *answerp2_malloced = 0;
+ }
+ if (saved_herrno != -1)
+diff --git a/resolv/res_send.c b/resolv/res_send.c
+index a968b95..21843f1 100644
+--- a/resolv/res_send.c
++++ b/resolv/res_send.c
+@@ -1,3 +1,20 @@
++/* Copyright (C) 2016 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
++ <http://www.gnu.org/licenses/>. */
++
+ /*
+ * Copyright (c) 1985, 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+@@ -355,6 +372,8 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
+ #ifdef USE_HOOKS
+ if (__glibc_unlikely (statp->qhook || statp->rhook)) {
+ if (anssiz < MAXPACKET && ansp) {
++ /* Always allocate MAXPACKET, callers expect
++ this specific size. */
+ u_char *buf = malloc (MAXPACKET);
+ if (buf == NULL)
+ return (-1);
+@@ -630,6 +649,77 @@ get_nsaddr (res_state statp, int n)
+ return (struct sockaddr *) (void *) &statp->nsaddr_list[n];
+ }
+
++/* The send_vc function is responsible for sending a DNS query over TCP
++ to the nameserver numbered NS from the res_state STATP i.e.
++ EXT(statp).nssocks[ns]. The function supports sending both IPv4 and
++ IPv6 queries at the same serially on the same socket.
++
++ Please note that for TCP there is no way to disable sending both
++ queries, unlike UDP, which honours RES_SNGLKUP and RES_SNGLKUPREOP
++ and sends the queries serially and waits for the result after each
++ sent query. This implemetnation should be corrected to honour these
++ options.
++
++ Please also note that for TCP we send both queries over the same
++ socket one after another. This technically violates best practice
++ since the server is allowed to read the first query, respond, and
++ then close the socket (to service another client). If the server
++ does this, then the remaining second query in the socket data buffer
++ will cause the server to send the client an RST which will arrive
++ asynchronously and the client's OS will likely tear down the socket
++ receive buffer resulting in a potentially short read and lost
++ response data. This will force the client to retry the query again,
++ and this process may repeat until all servers and connection resets
++ are exhausted and then the query will fail. It's not known if this
++ happens with any frequency in real DNS server implementations. This
++ implementation should be corrected to use two sockets by default for
++ parallel queries.
++
++ The query stored in BUF of BUFLEN length is sent first followed by
++ the query stored in BUF2 of BUFLEN2 length. Queries are sent
++ serially on the same socket.
++
++ Answers to the query are stored firstly in *ANSP up to a max of
++ *ANSSIZP bytes. If more than *ANSSIZP bytes are needed and ANSCP
++ is non-NULL (to indicate that modifying the answer buffer is allowed)
++ then malloc is used to allocate a new response buffer and ANSCP and
++ ANSP will both point to the new buffer. If more than *ANSSIZP bytes
++ are needed but ANSCP is NULL, then as much of the response as
++ possible is read into the buffer, but the results will be truncated.
++ When truncation happens because of a small answer buffer the DNS
++ packets header feild TC will bet set to 1, indicating a truncated
++ message and the rest of the socket data will be read and discarded.
++
++ Answers to the query are stored secondly in *ANSP2 up to a max of
++ *ANSSIZP2 bytes, with the actual response length stored in
++ *RESPLEN2. If more than *ANSSIZP bytes are needed and ANSP2
++ is non-NULL (required for a second query) then malloc is used to
++ allocate a new response buffer, *ANSSIZP2 is set to the new buffer
++ size and *ANSP2_MALLOCED is set to 1.
++
++ The ANSP2_MALLOCED argument will eventually be removed as the
++ change in buffer pointer can be used to detect the buffer has
++ changed and that the caller should use free on the new buffer.
++
++ Note that the answers may arrive in any order from the server and
++ therefore the first and second answer buffers may not correspond to
++ the first and second queries.
++
++ It is not supported to call this function with a non-NULL ANSP2
++ but a NULL ANSCP. Put another way, you can call send_vc with a
++ single unmodifiable buffer or two modifiable buffers, but no other
++ combination is supported.
++
++ It is the caller's responsibility to free the malloc allocated
++ buffers by detecting that the pointers have changed from their
++ original values i.e. *ANSCP or *ANSP2 has changed.
++
++ If errors are encountered then *TERRNO is set to an appropriate
++ errno value and a zero result is returned for a recoverable error,
++ and a less-than zero result is returned for a non-recoverable error.
++
++ If no errors are encountered then *TERRNO is left unmodified and
++ a the length of the first response in bytes is returned. */
+ static int
+ send_vc(res_state statp,
+ const u_char *buf, int buflen, const u_char *buf2, int buflen2,
+@@ -639,11 +729,7 @@ send_vc(res_state statp,
+ {
+ const HEADER *hp = (HEADER *) buf;
+ const HEADER *hp2 = (HEADER *) buf2;
+- u_char *ans = *ansp;
+- int orig_anssizp = *anssizp;
+- // XXX REMOVE
+- // int anssiz = *anssizp;
+- HEADER *anhp = (HEADER *) ans;
++ HEADER *anhp = (HEADER *) *ansp;
+ struct sockaddr *nsap = get_nsaddr (statp, ns);
+ int truncating, connreset, n;
+ /* On some architectures compiler might emit a warning indicating
+@@ -731,6 +817,8 @@ send_vc(res_state statp,
+ * Receive length & response
+ */
+ int recvresp1 = 0;
++ /* Skip the second response if there is no second query.
++ To do that we mark the second response as received. */
+ int recvresp2 = buf2 == NULL;
+ uint16_t rlen16;
+ read_len:
+@@ -767,40 +855,14 @@ send_vc(res_state statp,
+ u_char **thisansp;
+ int *thisresplenp;
+ if ((recvresp1 | recvresp2) == 0 || buf2 == NULL) {
++ /* We have not received any responses
++ yet or we only have one response to
++ receive. */
+ thisanssizp = anssizp;
+ thisansp = anscp ?: ansp;
+ assert (anscp != NULL || ansp2 == NULL);
+ thisresplenp = &resplen;
+ } else {
+- if (*anssizp != MAXPACKET) {
+- /* No buffer allocated for the first
+- reply. We can try to use the rest
+- of the user-provided buffer. */
+-#if __GNUC_PREREQ (4, 7)
+- DIAG_PUSH_NEEDS_COMMENT;
+- DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
+-#endif
+-#if _STRING_ARCH_unaligned
+- *anssizp2 = orig_anssizp - resplen;
+- *ansp2 = *ansp + resplen;
+-#else
+- int aligned_resplen
+- = ((resplen + __alignof__ (HEADER) - 1)
+- & ~(__alignof__ (HEADER) - 1));
+- *anssizp2 = orig_anssizp - aligned_resplen;
+- *ansp2 = *ansp + aligned_resplen;
+-#endif
+-#if __GNUC_PREREQ (4, 7)
+- DIAG_POP_NEEDS_COMMENT;
+-#endif
+- } else {
+- /* The first reply did not fit into the
+- user-provided buffer. Maybe the second
+- answer will. */
+- *anssizp2 = orig_anssizp;
+- *ansp2 = *ansp;
+- }
+-
+ thisanssizp = anssizp2;
+ thisansp = ansp2;
+ thisresplenp = resplen2;
+@@ -804,10 +870,14 @@ send_vc(res_state statp,
+ anhp = (HEADER *) *thisansp;
+
+ *thisresplenp = rlen;
+- if (rlen > *thisanssizp) {
+- /* Yes, we test ANSCP here. If we have two buffers
+- both will be allocatable. */
+- if (__glibc_likely (anscp != NULL)) {
++ /* Is the answer buffer too small? */
++ if (*thisanssizp < rlen) {
++ /* If the current buffer is not the the static
++ user-supplied buffer then we can reallocate
++ it. */
++ if (thisansp != NULL && thisansp != ansp) {
++ /* Always allocate MAXPACKET, callers expect
++ this specific size. */
+ u_char *newp = malloc (MAXPACKET);
+ if (newp == NULL) {
+ *terrno = ENOMEM;
+@@ -819,6 +889,9 @@ send_vc(res_state statp,
+ if (thisansp == ansp2)
+ *ansp2_malloced = 1;
+ anhp = (HEADER *) newp;
++ /* A uint16_t can't be larger than MAXPACKET
++ thus it's safe to allocate MAXPACKET but
++ read RLEN bytes instead. */
+ len = rlen;
+ } else {
+ Dprint(statp->options & RES_DEBUG,
+@@ -948,6 +1021,66 @@ reopen (res_state statp, int *terrno, int ns)
+ return 1;
+ }
+
++/* The send_dg function is responsible for sending a DNS query over UDP
++ to the nameserver numbered NS from the res_state STATP i.e.
++ EXT(statp).nssocks[ns]. The function supports IPv4 and IPv6 queries
++ along with the ability to send the query in parallel for both stacks
++ (default) or serially (RES_SINGLKUP). It also supports serial lookup
++ with a close and reopen of the socket used to talk to the server
++ (RES_SNGLKUPREOP) to work around broken name servers.
++
++ The query stored in BUF of BUFLEN length is sent first followed by
++ the query stored in BUF2 of BUFLEN2 length. Queries are sent
++ in parallel (default) or serially (RES_SINGLKUP or RES_SNGLKUPREOP).
++
++ Answers to the query are stored firstly in *ANSP up to a max of
++ *ANSSIZP bytes. If more than *ANSSIZP bytes are needed and ANSCP
++ is non-NULL (to indicate that modifying the answer buffer is allowed)
++ then malloc is used to allocate a new response buffer and ANSCP and
++ ANSP will both point to the new buffer. If more than *ANSSIZP bytes
++ are needed but ANSCP is NULL, then as much of the response as
++ possible is read into the buffer, but the results will be truncated.
++ When truncation happens because of a small answer buffer the DNS
++ packets header feild TC will bet set to 1, indicating a truncated
++ message, while the rest of the UDP packet is discarded.
++
++ Answers to the query are stored secondly in *ANSP2 up to a max of
++ *ANSSIZP2 bytes, with the actual response length stored in
++ *RESPLEN2. If more than *ANSSIZP bytes are needed and ANSP2
++ is non-NULL (required for a second query) then malloc is used to
++ allocate a new response buffer, *ANSSIZP2 is set to the new buffer
++ size and *ANSP2_MALLOCED is set to 1.
++
++ The ANSP2_MALLOCED argument will eventually be removed as the
++ change in buffer pointer can be used to detect the buffer has
++ changed and that the caller should use free on the new buffer.
++
++ Note that the answers may arrive in any order from the server and
++ therefore the first and second answer buffers may not correspond to
++ the first and second queries.
++
++ It is not supported to call this function with a non-NULL ANSP2
++ but a NULL ANSCP. Put another way, you can call send_vc with a
++ single unmodifiable buffer or two modifiable buffers, but no other
++ combination is supported.
++
++ It is the caller's responsibility to free the malloc allocated
++ buffers by detecting that the pointers have changed from their
++ original values i.e. *ANSCP or *ANSP2 has changed.
++
++ If an answer is truncated because of UDP datagram DNS limits then
++ *V_CIRCUIT is set to 1 and the return value non-zero to indicate to
++ the caller to retry with TCP. The value *GOTSOMEWHERE is set to 1
++ if any progress was made reading a response from the nameserver and
++ is used by the caller to distinguish between ECONNREFUSED and
++ ETIMEDOUT (the latter if *GOTSOMEWHERE is 1).
++
++ If errors are encountered then *TERRNO is set to an appropriate
++ errno value and a zero result is returned for a recoverable error,
++ and a less-than zero result is returned for a non-recoverable error.
++
++ If no errors are encountered then *TERRNO is left unmodified and
++ a the length of the first response in bytes is returned. */
+ static int
+ send_dg(res_state statp,
+ const u_char *buf, int buflen, const u_char *buf2, int buflen2,
+@@ -957,8 +1090,6 @@ send_dg(res_state statp,
+ {
+ const HEADER *hp = (HEADER *) buf;
+ const HEADER *hp2 = (HEADER *) buf2;
+- u_char *ans = *ansp;
+- int orig_anssizp = *anssizp;
+ struct timespec now, timeout, finish;
+ struct pollfd pfd[1];
+ int ptimeout;
+@@ -991,6 +1122,8 @@ send_dg(res_state statp,
+ int need_recompute = 0;
+ int nwritten = 0;
+ int recvresp1 = 0;
++ /* Skip the second response if there is no second query.
++ To do that we mark the second response as received. */
+ int recvresp2 = buf2 == NULL;
+ pfd[0].fd = EXT(statp).nssocks[ns];
+ pfd[0].events = POLLOUT;
+@@ -1154,55 +1287,56 @@ send_dg(res_state statp,
+ int *thisresplenp;
+
+ if ((recvresp1 | recvresp2) == 0 || buf2 == NULL) {
++ /* We have not received any responses
++ yet or we only have one response to
++ receive. */
+ thisanssizp = anssizp;
+ thisansp = anscp ?: ansp;
+ assert (anscp != NULL || ansp2 == NULL);
+ thisresplenp = &resplen;
+ } else {
+- if (*anssizp != MAXPACKET) {
+- /* No buffer allocated for the first
+- reply. We can try to use the rest
+- of the user-provided buffer. */
+-#if _STRING_ARCH_unaligned
+- *anssizp2 = orig_anssizp - resplen;
+- *ansp2 = *ansp + resplen;
+-#else
+- int aligned_resplen
+- = ((resplen + __alignof__ (HEADER) - 1)
+- & ~(__alignof__ (HEADER) - 1));
+- *anssizp2 = orig_anssizp - aligned_resplen;
+- *ansp2 = *ansp + aligned_resplen;
+-#endif
+- } else {
+- /* The first reply did not fit into the
+- user-provided buffer. Maybe the second
+- answer will. */
+- *anssizp2 = orig_anssizp;
+- *ansp2 = *ansp;
+- }
+-
+ thisanssizp = anssizp2;
+ thisansp = ansp2;
+ thisresplenp = resplen2;
+ }
+
+ if (*thisanssizp < MAXPACKET
+- /* Yes, we test ANSCP here. If we have two buffers
+- both will be allocatable. */
+- && anscp
++ /* If the current buffer is not the the static
++ user-supplied buffer then we can reallocate
++ it. */
++ && (thisansp != NULL && thisansp != ansp)
+ #ifdef FIONREAD
++ /* Is the size too small? */
+ && (ioctl (pfd[0].fd, FIONREAD, thisresplenp) < 0
+ || *thisanssizp < *thisresplenp)
+ #endif
+ ) {
++ /* Always allocate MAXPACKET, callers expect
++ this specific size. */
+ u_char *newp = malloc (MAXPACKET);
+ if (newp != NULL) {
+- *anssizp = MAXPACKET;
+- *thisansp = ans = newp;
++ *thisanssizp = MAXPACKET;
++ *thisansp = newp;
+ if (thisansp == ansp2)
+ *ansp2_malloced = 1;
+ }
+ }
++ /* We could end up with truncation if anscp was NULL
++ (not allowed to change caller's buffer) and the
++ response buffer size is too small. This isn't a
++ reliable way to detect truncation because the ioctl
++ may be an inaccurate report of the UDP message size.
++ Therefore we use this only to issue debug output.
++ To do truncation accurately with UDP we need
++ MSG_TRUNC which is only available on Linux. We
++ can abstract out the Linux-specific feature in the
++ future to detect truncation. */
++ if (__glibc_unlikely (*thisanssizp < *thisresplenp)) {
++ Dprint(statp->options & RES_DEBUG,
++ (stdout, ";; response may be truncated (UDP)\n")
++ );
++ }
++
+ HEADER *anhp = (HEADER *) *thisansp;
+ socklen_t fromlen = sizeof(struct sockaddr_in6);
+ assert (sizeof(from) <= fromlen);
+
diff --git a/glibc-2.22-roundup.patch b/glibc-2.22-roundup.patch
index 7991d33afeb..d820315299f 100644
--- a/glibc-2.22-roundup.patch
+++ b/glibc-2.22-roundup.patch
@@ -1,8 +1,234 @@
diff --git a/ChangeLog b/ChangeLog
-index cb9124e..d0d2cbd 100644
+index cb9124e..376355f 100644
--- a/ChangeLog
+++ b/ChangeLog
-@@ -1,3 +1,74 @@
+@@ -1,3 +1,300 @@
++2016-02-12 Florian Weimer <fweimer@redhat.com>
++
++ * misc/bug18240.c (do_test): Set RLIMIT_AS.
++
++2016-01-27 Paul Eggert <eggert@cs.ucla.edu>
++
++ [BZ #18240]
++ * misc/hsearch_r.c (isprime, __hcreate_r): Protect against
++ unsigned int wraparound.
++
++2016-01-27 Florian Weimer <fweimer@redhat.com>
++
++ [BZ #18240]
++ * misc/bug18240.c: New test.
++ * misc/Makefile (tests): Add it.
++
++2015-08-25 Ondřej Bílka <neleai@seznam.cz>
++
++ [BZ #18240]
++ * misc/hsearch_r.c (__hcreate_r): Handle overflow.
++
++2015-10-27 Ludovic Courtès <ludo@gnu.org>
++
++ * locale/loadlocale.c (_nl_intern_locale_data): Change assertion
++ on CNT to a conditional jump to 'puntdata'.
++
++2015-08-18 Alan Modra <amodra@gmail.com>
++
++ [BZ #18421]
++ * sysdeps/hppa/start.S [SHARED]: Use .section .data.rel.ro and define
++ .Lp__global.
++ (_start): Load %dp via .Lp__global.
++ [!SHARED]: Use .section .rodata.
++
++2015-08-09 John David Anglin <danglin@gcc.gnu.org>
++
++ [BZ #18480]
++ * sysdeps/unix/sysv/linux/hppa/sysdep.h (LOAD_ARGS_0, LOAD_ARGS_1,
++ LOAD_ARGS_2, LOAD_ARGS_3, LOAD_ARGS_4, LOAD_ARGS_5, LOAD_ARGS_6):
++ Define.
++ (LOAD_REGS_0, LOAD_REGS_1, LOAD_REGS_2, LOAD_REGS_3, LOAD_REGS_4,
++ LOAD_REGS_5, LOAD_REGS_6): Update.
++ (INTERNAL_SYSCALL): Update using new LOAD defines.
++ (INTERNAL_SYSCALL_NCS): Likewise.
++ * sysdeps/unix/sysv/linux/hppa/syscall.c (syscall): Likewise.
++
++2015-09-26 Paul Pluzhnikov <ppluzhnikov@google.com>
++
++ [BZ #18985]
++ * time/strftime_l.c (a_wkday, f_wkday, a_month, f_month): Range check.
++ (__strftime_internal): Likewise.
++ * time/tst-strftime.c (do_bz18985): New test.
++ (do_test): Call it.
++
++2015-08-08 Paul Pluzhnikov <ppluzhnikov@google.com>
++
++ [BZ #17905]
++ * catgets/Makefile (tst-catgets-mem): New test.
++ * catgets/catgets.c (catopen): Don't use unbounded alloca.
++ * catgets/open_catalog.c (__open_catalog): Likewise.
++ * catgets/tst-catgets.c (do_bz17905): Test unbounded alloca.
++
++2015-12-31 Aurelien Jarno <aurelien@aurel32.net>
++
++ * sysdeps/unix/sysv/linux/alpha/libc.abilist [GLIBC_2.22]: Move
++ to keep the file sorted.
++ * sysdeps/unix/sysv/linux/hppa/libc.abilist [GLIBC_2.22]: Likewise.
++
++2015-12-17 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
++
++ [BZ #19174]
++ * sysdeps/powerpc/nptl/elide.h (__elide_lock): Fix usage of
++ .skip_lock_out_of_tbegin_retries.
++ * sysdeps/unix/sysv/linux/powerpc/elision-lock.c
++ (__lll_lock_elision): Likewise, and respect a value of
++ try_tbegin <= 0.
++
++2015-11-20 Roland McGrath <roland@hack.frob.com>
++
++ * sysdeps/nacl/dl-map-segments.h (_dl_map_segments): Use
++ __glibc_likely instead of __builtin_expect. After falling back to
++ dyncode_create in a non-ET_DYN case, use the allocate_code_data
++ system interface to register the code pages as occupied.
++
++2015-11-14 H.J. Lu <hongjiu.lu@intel.com>
++
++ * config.make.in (have-glob-dat-reloc): New.
++ * configure.ac (libc_cv_has_glob_dat): New. Set to yes if
++ target supports GLOB_DAT relocaton. AC_SUBST.
++ * configure: Regenerated.
++ * elf/Makefile (tests): Add tst-prelink.
++ (tests-special): Add $(objpfx)tst-prelink-cmp.out.
++ (tst-prelink-ENV): New.
++ ($(objpfx)tst-prelink-conflict.out): Likewise.
++ ($(objpfx)tst-prelink-cmp.out): Likewise.
++ * sysdeps/x86/tst-prelink.c: Moved to ...
++ * elf/tst-prelink.c: Here.
++ * sysdeps/x86/tst-prelink.exp: Moved to ...
++ * elf/tst-prelink.exp: Here.
++ * sysdeps/x86/Makefile (tests): Don't add tst-prelink.
++ (tst-prelink-ENV): Removed.
++ ($(objpfx)tst-prelink-conflict.out): Likewise.
++ ($(objpfx)tst-prelink-cmp.out): Likewise.
++ (tests-special): Don't add $(objpfx)tst-prelink-cmp.out.
++
++2015-11-10 Roland McGrath <roland@hack.frob.com>
++
++ * elf/dl-load.c (open_verify): Take new argument FD.
++ Skip __open call if passed FD is not -1.
++ (_dl_map_object, open_path): Update callers.
++ * elf/dl-sysdep-open.h: New file.
++ * elf/dl-load.c: Include it.
++ (_dl_map_object): Try _dl_sysdep_open_object before ldconfig cache.
++ * sysdeps/nacl/dl-sysdep.c (_dl_sysdep_open_object): New function.
++ * sysdeps/nacl/dl-sysdep-open.h: New file.
++ * sysdeps/nacl/nacl-interface-list.h: Move nacl_irt_resource_open
++ from libc to rtld.
++
++2015-11-10 H.J. Lu <hongjiu.lu@intel.com>
++
++ [BZ #19178]
++ * sysdeps/x86/Makefile (tests): Add tst-prelink.
++ (tst-prelink-ENV): New.
++ ($(objpfx)tst-prelink-conflict.out): Likewise.
++ ($(objpfx)tst-prelink-cmp.out): Likewise.
++ (tests-special): Add $(objpfx)tst-prelink-cmp.out.
++ * sysdeps/x86/tst-prelink.c: New file.
++ * sysdeps/x86/tst-prelink.exp: Likewise.
++
++2015-11-07 H.J. Lu <hongjiu.lu@intel.com>
++
++ [BZ #19178]
++ * elf/dl-lookup.c (RTYPE_CLASS_VALID): New.
++ (RTYPE_CLASS_PLT): Likewise.
++ (RTYPE_CLASS_COPY): Likewise.
++ (RTYPE_CLASS_TLS): Likewise.
++ (_dl_debug_bindings): Use RTYPE_CLASS_TLS and RTYPE_CLASS_VALID
++ to set relocation type class for DL_DEBUG_PRELINK. Keep only
++ ELF_RTYPE_CLASS_PLT and ELF_RTYPE_CLASS_COPY bits for
++ DL_DEBUG_PRELINK.
++
++2015-10-20 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
++
++ [BZ #18743]
++ * sysdeps/powerpc/nptl/elide.h (__elide_lock): Move most of this
++ code to...
++ (ELIDE_LOCK): ...here.
++ (__get_new_count): New function with part of the code from
++ __elide_lock that updates the value of adapt_count after a
++ transaction abort.
++ (__elided_trylock): Moved this code to...
++ (ELIDE_TRYLOCK): ...here.
++
++2015-10-06 Florian Weimer <fweimer@redhat.com>
++
++ [BZ #19018]
++ * stdlib/cxa_thread_atexit_impl.c (__cxa_thread_atexit_impl):
++ Mangle function pointer before storing it.
++ (__call_tls_dtors): Demangle function pointer before calling it.
++
++2015-10-15 Florian Weimer <fweimer@redhat.com>
++
++ [BZ #18928]
++ * sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove
++ _dl_pointer_guard member.
++ * elf/rtld.c (_rtld_global_ro): Remove _dl_pointer_guard
++ initializer.
++ (security_init): Always set up pointer guard.
++ (process_envvars): Do not process LD_POINTER_GUARD.
++
++2015-10-09 Carlos O'Donell <carlos@redhat.com>
++
++ [BZ #18589]
++ * string/bug-strcoll2.c: Adjust copyright, and remove contributed by.
++ * string/Makefile ($(objpfx)bug-strcoll2.out): Depend on
++ $(gen-locales).
++
++2015-10-08 Carlos O'Donell <carlos@redhat.com>
++
++ [BZ #18589]
++ * string/Makefile (tests): Add bug-strcoll2.
++ (LOCALES): Add cs_CZ.UTF-8.
++
++2015-09-28 Martin Sebor <msebor@redhat.com>
++
++ [BZ #18969]
++ * string/Makefile (LOCALES): Define.
++ (gen-locales.mk): Include.
++ (test-strcasecmp.out, test-strncasecmp.out, tst-strxfrm.out)
++ (tst-strxfrm2.out): Add deppendency on $(gen-locales).
++ * string/tst-strxfrm2.c (do_test): Print the name of the locale
++ on setlocale failure.
++
++2015-10-08 Carlos O'Donell <carlos@redhat.com>
++
++ [BZ #18589]
++ * string/bug-strcoll2.c: New file.
++ * locale/categories.def: Revert commit
++ f13c2a8dff2329c6692a80176262ceaaf8a6f74e.
++ * locale/langinfo.h: Likewise.
++ * locale/localeinfo.h: Likewise.
++ * locale/C-collate.c: Likewise.
++ * programs/ld-collate.c (collate_output): Likewise.
++ * string/strcoll_l.c (STRDIFF): Likewise.
++ (STRCOLL): Likewise.
++ * wcsmbs/wcscoll_l.c: Likewise.
++
++2015-09-15 Roland McGrath <roland@hack.frob.com>
++
++ * misc/sys/param.h [!MAXHOSTNAMELEN && HOST_NAME_MAX]
++ (MAXHOSTNAMELEN): Define it to HOST_NAME_MAX.
++
++2015-09-11 Roland McGrath <roland@hack.frob.com>
++
++ * sysdeps/nacl/Makefile [$(subdir) = misc] (sysdep_headers):
++ Use 'override' keyword to freeze the value here, preventing
++ the addition of sys/mtio.h by sysdeps/gnu/Makefile.
++
++2015-09-04 Roland McGrath <roland@hack.frob.com>
++
++ [BZ #18921]
++ * sysdeps/posix/opendir.c (need_isdir_precheck) [O_DIRECTORY]:
++ Fix inverted sense of test of 'o_directory_works' value.
++ Reported by Pádraig Brady <P@draigBrady.com>, diagnosed by
++ Bernhard Voelker <mail@bernhard-voelker.de>.
++
+2015-08-31 Brett Neumeier <brett@neumeier.us>
+
+ [BZ #18870]
@@ -78,10 +304,10 @@ index cb9124e..d0d2cbd 100644
* version.h (RELEASE): Set to "stable".
diff --git a/NEWS b/NEWS
-index 4c31de7..ce0255a 100644
+index 4c31de7..7c4fbc6 100644
--- a/NEWS
+++ b/NEWS
-@@ -5,6 +5,12 @@ See the end for copying conditions.
+@@ -5,6 +5,16 @@ See the end for copying conditions.
Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
using `glibc' in the "product" field.
@@ -89,12 +315,16 @@ index 4c31de7..ce0255a 100644
+
+* The following bugs are resolved with this release:
+
-+ 18778, 18781, 18787, 18796, 18870, 18887.
++ 17905, 18420, 18421, 18480, 18589, 18743, 18778, 18781, 18787, 18796,
++ 18870, 18887, 18921, 18928, 18969, 18985, 19018, 19174, 19178.
++
++* The LD_POINTER_GUARD environment variable can no longer be used to
++ disable the pointer guard feature. It is always enabled.
+
Version 2.22
* The following bugs are resolved with this release:
-@@ -84,7 +90,7 @@ Version 2.22
+@@ -84,7 +94,7 @@ Version 2.22
release. Use of this header will trigger a deprecation warning.
Application developers should update their code to use <regex.h> instead.
@@ -103,8 +333,317 @@ index 4c31de7..ce0255a 100644
removed from the standard in 2001. Also, the glibc implementation
leaks memory. See BZ#18681 for more details.
+diff --git a/catgets/Makefile b/catgets/Makefile
+index 4624a88..56de38b 100644
+--- a/catgets/Makefile
++++ b/catgets/Makefile
+@@ -34,6 +34,7 @@ test-srcs = test-gencat
+ ifeq ($(run-built-tests),yes)
+ tests-special += $(objpfx)de/libc.cat $(objpfx)test1.cat $(objpfx)test2.cat \
+ $(objpfx)sample.SJIS.cat $(objpfx)test-gencat.out
++tests-special += $(objpfx)tst-catgets-mem.out
+ endif
+
+ gencat-modules = xmalloc
+@@ -50,9 +51,11 @@ catgets-CPPFLAGS := -DNLSPATH='"$(msgcatdir)/%L/%N:$(msgcatdir)/%L/LC_MESSAGES/%
+
+ generated += de.msg test1.cat test1.h test2.cat test2.h sample.SJIS.cat \
+ test-gencat.h
++generated += tst-catgets.mtrace tst-catgets-mem.out
++
+ generated-dirs += de
+
+-tst-catgets-ENV = NLSPATH="$(objpfx)%l/%N.cat" LANG=de
++tst-catgets-ENV = NLSPATH="$(objpfx)%l/%N.cat" LANG=de MALLOC_TRACE=$(objpfx)tst-catgets.mtrace
+
+ ifeq ($(run-built-tests),yes)
+ # This test just checks whether the program produces any error or not.
+@@ -86,4 +89,8 @@ $(objpfx)test-gencat.out: test-gencat.sh $(objpfx)test-gencat \
+ $(objpfx)sample.SJIS.cat: sample.SJIS $(objpfx)gencat
+ $(built-program-cmd) -H $(objpfx)test-gencat.h < $(word 1,$^) > $@; \
+ $(evaluate-test)
++
++$(objpfx)tst-catgets-mem.out: $(objpfx)tst-catgets.out
++ $(common-objpfx)malloc/mtrace $(objpfx)tst-catgets.mtrace > $@; \
++ $(evaluate-test)
+ endif
+diff --git a/catgets/catgets.c b/catgets/catgets.c
+index cf93d56..4be452d 100644
+--- a/catgets/catgets.c
++++ b/catgets/catgets.c
+@@ -16,7 +16,6 @@
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+-#include <alloca.h>
+ #include <errno.h>
+ #include <locale.h>
+ #include <nl_types.h>
+@@ -35,6 +34,7 @@ catopen (const char *cat_name, int flag)
+ __nl_catd result;
+ const char *env_var = NULL;
+ const char *nlspath = NULL;
++ char *tmp = NULL;
+
+ if (strchr (cat_name, '/') == NULL)
+ {
+@@ -54,7 +54,10 @@ catopen (const char *cat_name, int flag)
+ {
+ /* Append the system dependent directory. */
+ size_t len = strlen (nlspath) + 1 + sizeof NLSPATH;
+- char *tmp = alloca (len);
++ tmp = malloc (len);
++
++ if (__glibc_unlikely (tmp == NULL))
++ return (nl_catd) -1;
+
+ __stpcpy (__stpcpy (__stpcpy (tmp, nlspath), ":"), NLSPATH);
+ nlspath = tmp;
+@@ -65,16 +68,18 @@ catopen (const char *cat_name, int flag)
+
+ result = (__nl_catd) malloc (sizeof (*result));
+ if (result == NULL)
+- /* We cannot get enough memory. */
+- return (nl_catd) -1;
+-
+- if (__open_catalog (cat_name, nlspath, env_var, result) != 0)
++ {
++ /* We cannot get enough memory. */
++ result = (nl_catd) -1;
++ }
++ else if (__open_catalog (cat_name, nlspath, env_var, result) != 0)
+ {
+ /* Couldn't open the file. */
+ free ((void *) result);
+- return (nl_catd) -1;
++ result = (nl_catd) -1;
+ }
+
++ free (tmp);
+ return (nl_catd) result;
+ }
+
+diff --git a/catgets/open_catalog.c b/catgets/open_catalog.c
+index e069416..9f4d776 100644
+--- a/catgets/open_catalog.c
++++ b/catgets/open_catalog.c
+@@ -47,6 +47,7 @@ __open_catalog (const char *cat_name, const char *nlspath, const char *env_var,
+ size_t tab_size;
+ const char *lastp;
+ int result = -1;
++ char *buf = NULL;
+
+ if (strchr (cat_name, '/') != NULL || nlspath == NULL)
+ fd = open_not_cancel_2 (cat_name, O_RDONLY);
+@@ -57,23 +58,23 @@ __open_catalog (const char *cat_name, const char *nlspath, const char *env_var,
+ if (__glibc_unlikely (bufact + (n) >= bufmax)) \
+ { \
+ char *old_buf = buf; \
+- bufmax += 256 + (n); \
+- buf = (char *) alloca (bufmax); \
+- memcpy (buf, old_buf, bufact); \
++ bufmax += (bufmax < 256 + (n)) ? 256 + (n) : bufmax; \
++ buf = realloc (buf, bufmax); \
++ if (__glibc_unlikely (buf == NULL)) \
++ { \
++ free (old_buf); \
++ return -1; \
++ } \
+ }
+
+ /* The RUN_NLSPATH variable contains a colon separated list of
+ descriptions where we expect to find catalogs. We have to
+ recognize certain % substitutions and stop when we found the
+ first existing file. */
+- char *buf;
+ size_t bufact;
+- size_t bufmax;
++ size_t bufmax = 0;
+ size_t len;
+
+- buf = NULL;
+- bufmax = 0;
+-
+ fd = -1;
+ while (*run_nlspath != '\0')
+ {
+@@ -188,7 +189,10 @@ __open_catalog (const char *cat_name, const char *nlspath, const char *env_var,
+
+ /* Avoid dealing with directories and block devices */
+ if (__builtin_expect (fd, 0) < 0)
+- return -1;
++ {
++ free (buf);
++ return -1;
++ }
+
+ if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &st), 0) < 0)
+ goto close_unlock_return;
+@@ -325,6 +329,7 @@ __open_catalog (const char *cat_name, const char *nlspath, const char *env_var,
+ /* Release the lock again. */
+ close_unlock_return:
+ close_not_cancel_no_status (fd);
++ free (buf);
+
+ return result;
+ }
+diff --git a/catgets/tst-catgets.c b/catgets/tst-catgets.c
+index a0a4089..0886938 100644
+--- a/catgets/tst-catgets.c
++++ b/catgets/tst-catgets.c
+@@ -1,7 +1,10 @@
++#include <assert.h>
+ #include <mcheck.h>
+ #include <nl_types.h>
+ #include <stdio.h>
++#include <stdlib.h>
+ #include <string.h>
++#include <sys/resource.h>
+
+
+ static const char *msgs[] =
+@@ -12,6 +15,33 @@ static const char *msgs[] =
+ };
+ #define nmsgs (sizeof (msgs) / sizeof (msgs[0]))
+
++
++/* Test for unbounded alloca. */
++static int
++do_bz17905 (void)
++{
++ char *buf;
++ struct rlimit rl;
++ nl_catd result;
++
++ const int sz = 1024 * 1024;
++
++ getrlimit (RLIMIT_STACK, &rl);
++ rl.rlim_cur = sz;
++ setrlimit (RLIMIT_STACK, &rl);
++
++ buf = malloc (sz + 1);
++ memset (buf, 'A', sz);
++ buf[sz] = '\0';
++ setenv ("NLSPATH", buf, 1);
++
++ result = catopen (buf, NL_CAT_LOCALE);
++ assert (result == (nl_catd) -1);
++
++ free (buf);
++ return 0;
++}
++
+ #define ROUNDS 5
+
+ static int
+@@ -62,6 +92,7 @@ do_test (void)
+ }
+ }
+
++ result += do_bz17905 ();
+ return result;
+ }
+
+diff --git a/config.make.in b/config.make.in
+index a9f5696..46cd9bb 100644
+--- a/config.make.in
++++ b/config.make.in
+@@ -51,6 +51,7 @@ have-z-combreloc = @libc_cv_z_combreloc@
+ have-z-execstack = @libc_cv_z_execstack@
+ have-Bgroup = @libc_cv_Bgroup@
+ have-protected-data = @libc_cv_protected_data@
++have-glob-dat-reloc = @libc_cv_has_glob_dat@
+ with-fp = @with_fp@
+ old-glibc-headers = @old_glibc_headers@
+ unwind-find-fde = @libc_cv_gcc_unwind_find_fde@
+diff --git a/configure b/configure
+index 45cc7cb..4f87b31 100755
+--- a/configure
++++ b/configure
+@@ -628,6 +628,7 @@ gnu89_inline
+ libc_cv_ssp
+ fno_unit_at_a_time
+ libc_cv_output_format
++libc_cv_has_glob_dat
+ libc_cv_hashstyle
+ libc_cv_fpie
+ libc_cv_z_execstack
+@@ -6335,6 +6336,39 @@ $as_echo "$libc_cv_use_default_link" >&6; }
+ use_default_link=$libc_cv_use_default_link
+ fi
+
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5
++$as_echo_n "checking for GLOB_DAT reloc... " >&6; }
++if ${libc_cv_has_glob_dat+:} false; then :
++ $as_echo_n "(cached) " >&6
++else
++ cat > conftest.c <<EOF
++extern int mumble;
++int foo (void) { return mumble; }
++EOF
++if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
++ -fPIC -shared -o conftest.so conftest.c
++ -nostdlib -nostartfiles
++ 1>&5'
++ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
++ (eval $ac_try) 2>&5
++ ac_status=$?
++ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
++ test $ac_status = 0; }; }
++then
++ if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then
++ libc_cv_has_glob_dat=yes
++ else
++ libc_cv_has_glob_dat=no
++ fi
++else
++ libc_cv_has_glob_dat=no
++fi
++rm -f conftest*
++fi
++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_has_glob_dat" >&5
++$as_echo "$libc_cv_has_glob_dat" >&6; }
++
++
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5
+ $as_echo_n "checking linker output format... " >&6; }
+ if ${libc_cv_output_format+:} false; then :
+diff --git a/configure.ac b/configure.ac
+index 7e9383a..8be612d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -1535,6 +1535,29 @@ $ac_try"
+ use_default_link=$libc_cv_use_default_link
+ fi
+
++AC_CACHE_CHECK(for GLOB_DAT reloc,
++ libc_cv_has_glob_dat, [dnl
++cat > conftest.c <<EOF
++extern int mumble;
++int foo (void) { return mumble; }
++EOF
++if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
++ -fPIC -shared -o conftest.so conftest.c
++ -nostdlib -nostartfiles
++ 1>&AS_MESSAGE_LOG_FD])
++then
++dnl look for GLOB_DAT relocation.
++ if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then
++ libc_cv_has_glob_dat=yes
++ else
++ libc_cv_has_glob_dat=no
++ fi
++else
++ libc_cv_has_glob_dat=no
++fi
++rm -f conftest*])
++AC_SUBST(libc_cv_has_glob_dat)
++
+ AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl
+ if libc_cv_output_format=`
+ ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD`
diff --git a/elf/Makefile b/elf/Makefile
-index 4ceeaf8..71a18a1 100644
+index 4ceeaf8..a2c43bc 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -148,7 +148,8 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
@@ -126,7 +665,21 @@ index 4ceeaf8..71a18a1 100644
ifeq (yes,$(have-protected-data))
modules-names += tst-protected1moda tst-protected1modb
tests += tst-protected1a tst-protected1b
-@@ -594,6 +595,7 @@ tst-auditmod9b.so-no-z-defs = yes
+@@ -292,6 +293,13 @@ check-abi: $(objpfx)check-abi-ld.out
+ tests-special += $(objpfx)check-abi-ld.out
+ update-abi: update-abi-ld
+
++ifeq ($(have-glob-dat-reloc),yes)
++tests += tst-prelink
++ifeq ($(run-built-tests),yes)
++tests-special += $(objpfx)tst-prelink-cmp.out
++endif
++endif
++
+ include ../Rules
+
+ ifeq (yes,$(build-shared))
+@@ -594,6 +602,7 @@ tst-auditmod9b.so-no-z-defs = yes
tst-nodelete-uniquemod.so-no-z-defs = yes
tst-nodelete-rtldmod.so-no-z-defs = yes
tst-nodelete-zmod.so-no-z-defs = yes
@@ -134,7 +687,7 @@ index 4ceeaf8..71a18a1 100644
ifeq ($(build-shared),yes)
# Build all the modules even when not actually running test programs.
-@@ -1164,6 +1166,11 @@ $(objpfx)tst-nodelete.out: $(objpfx)tst-nodelete-uniquemod.so \
+@@ -1164,6 +1173,11 @@ $(objpfx)tst-nodelete.out: $(objpfx)tst-nodelete-uniquemod.so \
LDFLAGS-tst-nodelete = -rdynamic
LDFLAGS-tst-nodelete-zmod.so = -Wl,--enable-new-dtags,-z,nodelete
@@ -146,6 +699,20 @@ index 4ceeaf8..71a18a1 100644
$(objpfx)tst-initorder-cmp.out: tst-initorder.exp $(objpfx)tst-initorder.out
cmp $^ > $@; \
$(evaluate-test)
+@@ -1205,3 +1219,13 @@ $(objpfx)tst-unused-dep.out: $(objpfx)testobj1.so
+ $(objpfx)tst-unused-dep-cmp.out: $(objpfx)tst-unused-dep.out
+ cmp $< /dev/null > $@; \
+ $(evaluate-test)
++
++tst-prelink-ENV = LD_TRACE_PRELINKING=1
++
++$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out
++ grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@
++
++$(objpfx)tst-prelink-cmp.out: tst-prelink.exp \
++ $(objpfx)tst-prelink-conflict.out
++ cmp $^ > $@; \
++ $(evaluate-test)
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 9105277..c897247 100644
--- a/elf/dl-close.c
@@ -179,6 +746,250 @@ index 9105277..c897247 100644
}
assert (idx == nloaded);
+diff --git a/elf/dl-load.c b/elf/dl-load.c
+index 0c052e4..7e6f4c5 100644
+--- a/elf/dl-load.c
++++ b/elf/dl-load.c
+@@ -42,6 +42,7 @@
+ #include <dl-map-segments.h>
+ #include <dl-unmap-segments.h>
+ #include <dl-machine-reject-phdr.h>
++#include <dl-sysdep-open.h>
+
+
+ #include <endian.h>
+@@ -1471,9 +1472,13 @@ print_search_path (struct r_search_path_elem **list,
+ ignore only ELF files for other architectures. Non-ELF files and
+ ELF files with different header information cause fatal errors since
+ this could mean there is something wrong in the installation and the
+- user might want to know about this. */
++ user might want to know about this.
++
++ If FD is not -1, then the file is already open and FD refers to it.
++ In that case, FD is consumed for both successful and error returns. */
+ static int
+-open_verify (const char *name, struct filebuf *fbp, struct link_map *loader,
++open_verify (const char *name, int fd,
++ struct filebuf *fbp, struct link_map *loader,
+ int whatcode, int mode, bool *found_other_class, bool free_name)
+ {
+ /* This is the expected ELF header. */
+@@ -1514,6 +1519,7 @@ open_verify (const char *name, struct filebuf *fbp, struct link_map *loader,
+ if (__glibc_unlikely (GLRO(dl_naudit) > 0) && whatcode != 0
+ && loader->l_auditing == 0)
+ {
++ const char *original_name = name;
+ struct audit_ifaces *afct = GLRO(dl_audit);
+ for (unsigned int cnt = 0; cnt < GLRO(dl_naudit); ++cnt)
+ {
+@@ -1528,11 +1534,21 @@ open_verify (const char *name, struct filebuf *fbp, struct link_map *loader,
+
+ afct = afct->next;
+ }
++
++ if (fd != -1 && name != original_name && strcmp (name, original_name))
++ {
++ /* An audit library changed what we're supposed to open,
++ so FD no longer matches it. */
++ __close (fd);
++ fd = -1;
++ }
+ }
+ #endif
+
+- /* Open the file. We always open files read-only. */
+- int fd = __open (name, O_RDONLY | O_CLOEXEC);
++ if (fd == -1)
++ /* Open the file. We always open files read-only. */
++ fd = __open (name, O_RDONLY | O_CLOEXEC);
++
+ if (fd != -1)
+ {
+ ElfW(Ehdr) *ehdr;
+@@ -1801,7 +1817,7 @@ open_path (const char *name, size_t namelen, int mode,
+ if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_LIBS))
+ _dl_debug_printf (" trying file=%s\n", buf);
+
+- fd = open_verify (buf, fbp, loader, whatcode, mode,
++ fd = open_verify (buf, -1, fbp, loader, whatcode, mode,
+ found_other_class, false);
+ if (this_dir->status[cnt] == unknown)
+ {
+@@ -2041,6 +2057,20 @@ _dl_map_object (struct link_map *loader, const char *name,
+ &loader->l_runpath_dirs, &realname, &fb, loader,
+ LA_SER_RUNPATH, &found_other_class);
+
++ if (fd == -1)
++ {
++ realname = _dl_sysdep_open_object (name, namelen, &fd);
++ if (realname != NULL)
++ {
++ fd = open_verify (realname, fd,
++ &fb, loader ?: GL(dl_ns)[nsid]._ns_loaded,
++ LA_SER_CONFIG, mode, &found_other_class,
++ false);
++ if (fd == -1)
++ free (realname);
++ }
++ }
++
+ #ifdef USE_LDCONFIG
+ if (fd == -1
+ && (__glibc_likely ((mode & __RTLD_SECURE) == 0)
+@@ -2086,7 +2116,7 @@ _dl_map_object (struct link_map *loader, const char *name,
+
+ if (cached != NULL)
+ {
+- fd = open_verify (cached,
++ fd = open_verify (cached, -1,
+ &fb, loader ?: GL(dl_ns)[nsid]._ns_loaded,
+ LA_SER_CONFIG, mode, &found_other_class,
+ false);
+@@ -2121,7 +2151,7 @@ _dl_map_object (struct link_map *loader, const char *name,
+ fd = -1;
+ else
+ {
+- fd = open_verify (realname, &fb,
++ fd = open_verify (realname, -1, &fb,
+ loader ?: GL(dl_ns)[nsid]._ns_loaded, 0, mode,
+ &found_other_class, true);
+ if (__glibc_unlikely (fd == -1))
+diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
+index 11cb44b..acf5280 100644
+--- a/elf/dl-lookup.c
++++ b/elf/dl-lookup.c
+@@ -1016,6 +1016,18 @@ _dl_debug_bindings (const char *undef_name, struct link_map *undef_map,
+ #ifdef SHARED
+ if (GLRO(dl_debug_mask) & DL_DEBUG_PRELINK)
+ {
++/* ELF_RTYPE_CLASS_XXX must match RTYPE_CLASS_XXX used by prelink with
++ LD_TRACE_PRELINKING. */
++#define RTYPE_CLASS_VALID 8
++#define RTYPE_CLASS_PLT (8|1)
++#define RTYPE_CLASS_COPY (8|2)
++#define RTYPE_CLASS_TLS (8|4)
++#if ELF_RTYPE_CLASS_PLT != 0 && ELF_RTYPE_CLASS_PLT != 1
++# error ELF_RTYPE_CLASS_PLT must be 0 or 1!
++#endif
++#if ELF_RTYPE_CLASS_COPY != 0 && ELF_RTYPE_CLASS_COPY != 2
++# error ELF_RTYPE_CLASS_COPY must be 0 or 2!
++#endif
+ int conflict = 0;
+ struct sym_val val = { NULL, NULL };
+
+@@ -1071,12 +1083,17 @@ _dl_debug_bindings (const char *undef_name, struct link_map *undef_map,
+
+ if (value->s)
+ {
++ /* Keep only ELF_RTYPE_CLASS_PLT and ELF_RTYPE_CLASS_COPY
++ bits since since prelink only uses them. */
++ type_class &= ELF_RTYPE_CLASS_PLT | ELF_RTYPE_CLASS_COPY;
+ if (__glibc_unlikely (ELFW(ST_TYPE) (value->s->st_info)
+ == STT_TLS))
+- type_class = 4;
++ /* Clear the RTYPE_CLASS_VALID bit in RTYPE_CLASS_TLS. */
++ type_class = RTYPE_CLASS_TLS & ~RTYPE_CLASS_VALID;
+ else if (__glibc_unlikely (ELFW(ST_TYPE) (value->s->st_info)
+ == STT_GNU_IFUNC))
+- type_class |= 8;
++ /* Set the RTYPE_CLASS_VALID bit. */
++ type_class |= RTYPE_CLASS_VALID;
+ }
+
+ if (conflict
+diff --git a/elf/dl-sysdep-open.h b/elf/dl-sysdep-open.h
+new file mode 100644
+index 0000000..a63d9f5
+--- /dev/null
++++ b/elf/dl-sysdep-open.h
+@@ -0,0 +1,45 @@
++/* System-specific call to open a shared object by name. Stub version.
++ Copyright (C) 2015 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
++ <http://www.gnu.org/licenses/>. */
++
++#ifndef _DL_SYSDEP_OPEN_H
++#define _DL_SYSDEP_OPEN_H 1
++
++#include <assert.h>
++#include <stddef.h>
++
++/* NAME is a name without slashes, as it appears in a DT_NEEDED entry
++ or a dlopen call's argument or suchlike. NAMELEN is (strlen (NAME) + 1).
++
++ Find NAME in an OS-dependent fashion, and return its "real" name.
++ Optionally fill in *FD with a file descriptor open on that file (or
++ else leave its initial value of -1). The return value is a new
++ malloc'd string, which will be free'd by the caller. If NAME is
++ resolved to an actual file that can be opened, then the return
++ value should name that file (and if *FD was not set, then a normal
++ __open call on that string will be made). If *FD was set by some
++ other means than a normal open and there is no "real" name to use,
++ then __strdup (NAME) is fine (modulo error checking). */
++
++static inline char *
++_dl_sysdep_open_object (const char *name, size_t namelen, int *fd)
++{
++ assert (*fd == -1);
++ return NULL;
++}
++
++#endif /* dl-sysdep-open.h */
+diff --git a/elf/rtld.c b/elf/rtld.c
+index 69873c2..07e741c 100644
+--- a/elf/rtld.c
++++ b/elf/rtld.c
+@@ -162,7 +162,6 @@ struct rtld_global_ro _rtld_global_ro attribute_relro =
+ ._dl_hwcap_mask = HWCAP_IMPORTANT,
+ ._dl_lazy = 1,
+ ._dl_fpu_control = _FPU_DEFAULT,
+- ._dl_pointer_guard = 1,
+ ._dl_pagesize = EXEC_PAGESIZE,
+ ._dl_inhibit_cache = 0,
+
+@@ -709,15 +708,12 @@ security_init (void)
+ #endif
+
+ /* Set up the pointer guard as well, if necessary. */
+- if (GLRO(dl_pointer_guard))
+- {
+- uintptr_t pointer_chk_guard = _dl_setup_pointer_guard (_dl_random,
+- stack_chk_guard);
++ uintptr_t pointer_chk_guard
++ = _dl_setup_pointer_guard (_dl_random, stack_chk_guard);
+ #ifdef THREAD_SET_POINTER_GUARD
+- THREAD_SET_POINTER_GUARD (pointer_chk_guard);
++ THREAD_SET_POINTER_GUARD (pointer_chk_guard);
+ #endif
+- __pointer_chk_guard_local = pointer_chk_guard;
+- }
++ __pointer_chk_guard_local = pointer_chk_guard;
+
+ /* We do not need the _dl_random value anymore. The less
+ information we leave behind, the better, so clear the
+@@ -2471,9 +2467,6 @@ process_envvars (enum mode *modep)
+ GLRO(dl_use_load_bias) = envline[14] == '1' ? -1 : 0;
+ break;
+ }
+-
+- if (memcmp (envline, "POINTER_GUARD", 13) == 0)
+- GLRO(dl_pointer_guard) = envline[14] != '0';
+ break;
+
+ case 14:
diff --git a/elf/tst-nodelete2.c b/elf/tst-nodelete2.c
new file mode 100644
index 0000000..388e8af
@@ -235,6 +1046,49 @@ index 0000000..e88c756
+{
+ return not_exist ();
+}
+diff --git a/elf/tst-prelink.c b/elf/tst-prelink.c
+new file mode 100644
+index 0000000..ab61c4e
+--- /dev/null
++++ b/elf/tst-prelink.c
+@@ -0,0 +1,30 @@
++/* Test the output from the environment variable, LD_TRACE_PRELINKING,
++ for prelink.
++ Copyright (C) 2015 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
++ <http://www.gnu.org/licenses/>. */
++
++#include <stdio.h>
++
++static int
++do_test (void)
++{
++ fprintf (stdout, "hello\n");
++ return 0;
++}
++
++#define TEST_FUNCTION do_test ()
++#include "../test-skeleton.c"
+diff --git a/elf/tst-prelink.exp b/elf/tst-prelink.exp
+new file mode 100644
+index 0000000..b35b4c9
+--- /dev/null
++++ b/elf/tst-prelink.exp
+@@ -0,0 +1 @@
++/0 stdout
diff --git a/elf/tst-znodelete-zlib.cc b/elf/tst-znodelete-zlib.cc
deleted file mode 100644
index 1e8f368..0000000
@@ -286,8 +1140,117 @@ index 539c2a2..b6ebae4 100644
test_ftello ();
return 0;
+diff --git a/locale/C-collate.c b/locale/C-collate.c
+index d7f3c55..06dfdfa 100644
+--- a/locale/C-collate.c
++++ b/locale/C-collate.c
+@@ -144,8 +144,6 @@ const struct __locale_data _nl_C_LC_COLLATE attribute_hidden =
+ /* _NL_COLLATE_COLLSEQWC */
+ { .string = (const char *) collseqwc },
+ /* _NL_COLLATE_CODESET */
+- { .string = _nl_C_codeset },
+- /* _NL_COLLATE_ENCODING_TYPE */
+- { .word = __cet_8bit }
++ { .string = _nl_C_codeset }
+ }
+ };
+diff --git a/locale/categories.def b/locale/categories.def
+index 045489d..a8dda53 100644
+--- a/locale/categories.def
++++ b/locale/categories.def
+@@ -58,7 +58,6 @@ DEFINE_CATEGORY
+ DEFINE_ELEMENT (_NL_COLLATE_COLLSEQMB, "collate-collseqmb", std, wstring)
+ DEFINE_ELEMENT (_NL_COLLATE_COLLSEQWC, "collate-collseqwc", std, wstring)
+ DEFINE_ELEMENT (_NL_COLLATE_CODESET, "collate-codeset", std, string)
+- DEFINE_ELEMENT (_NL_COLLATE_ENCODING_TYPE, "collate-encoding-type", std, word)
+ ), NO_POSTLOAD)
+
+
+diff --git a/locale/langinfo.h b/locale/langinfo.h
+index ffc5c7f..a565d9d 100644
+--- a/locale/langinfo.h
++++ b/locale/langinfo.h
+@@ -255,7 +255,6 @@ enum
+ _NL_COLLATE_COLLSEQMB,
+ _NL_COLLATE_COLLSEQWC,
+ _NL_COLLATE_CODESET,
+- _NL_COLLATE_ENCODING_TYPE,
+ _NL_NUM_LC_COLLATE,
+
+ /* LC_CTYPE category: character classification.
+diff --git a/locale/loadlocale.c b/locale/loadlocale.c
+index fdba6e9..dcbb833 100644
+--- a/locale/loadlocale.c
++++ b/locale/loadlocale.c
+@@ -121,9 +121,10 @@ _nl_intern_locale_data (int category, const void *data, size_t datasize)
+ switch (category)
+ {
+ #define CATTEST(cat) \
+- case LC_##cat: \
+- assert (cnt < (sizeof (_nl_value_type_LC_##cat) \
+- / sizeof (_nl_value_type_LC_##cat[0]))); \
++ case LC_##cat: \
++ if (cnt >= (sizeof (_nl_value_type_LC_##cat) \
++ / sizeof (_nl_value_type_LC_##cat[0]))) \
++ goto puntdata; \
+ break
+ CATTEST (NUMERIC);
+ CATTEST (TIME);
+diff --git a/locale/localeinfo.h b/locale/localeinfo.h
+index bdab9fe..1d2ee00 100644
+--- a/locale/localeinfo.h
++++ b/locale/localeinfo.h
+@@ -110,14 +110,6 @@ enum coll_sort_rule
+ sort_mask
+ };
+
+-/* Collation encoding type. */
+-enum collation_encoding_type
+-{
+- __cet_other,
+- __cet_8bit,
+- __cet_utf8
+-};
+-
+ /* We can map the types of the entries into a few categories. */
+ enum value_type
+ {
+diff --git a/locale/programs/ld-collate.c b/locale/programs/ld-collate.c
+index a39a94f..dc0fe30 100644
+--- a/locale/programs/ld-collate.c
++++ b/locale/programs/ld-collate.c
+@@ -32,7 +32,6 @@
+ #include "linereader.h"
+ #include "locfile.h"
+ #include "elem-hash.h"
+-#include "../localeinfo.h"
+
+ /* Uncomment the following line in the production version. */
+ /* #define NDEBUG 1 */
+@@ -2131,8 +2130,6 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
+ /* The words have to be handled specially. */
+ if (idx == _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_SIZEMB))
+ add_locale_uint32 (&file, 0);
+- else if (idx == _NL_ITEM_INDEX (_NL_COLLATE_ENCODING_TYPE))
+- add_locale_uint32 (&file, __cet_other);
+ else
+ add_locale_empty (&file);
+ }
+@@ -2496,12 +2493,6 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
+ add_locale_raw_data (&file, collate->mbseqorder, 256);
+ add_locale_collseq_table (&file, &collate->wcseqorder);
+ add_locale_string (&file, charmap->code_set_name);
+- if (strcmp (charmap->code_set_name, "UTF-8") == 0)
+- add_locale_uint32 (&file, __cet_utf8);
+- else if (charmap->mb_cur_max == 1)
+- add_locale_uint32 (&file, __cet_8bit);
+- else
+- add_locale_uint32 (&file, __cet_other);
+ write_locale_data (output_path, LC_COLLATE, "LC_COLLATE", &file);
+
+ obstack_free (&weightpool, NULL);
diff --git a/misc/Makefile b/misc/Makefile
-index aecb0da..2f5edf6 100644
+index aecb0da..12055ce 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -76,7 +76,8 @@ install-lib := libg.a
@@ -296,10 +1259,170 @@ index aecb0da..2f5edf6 100644
tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
- tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1
+ tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 \
-+ tst-mntent-blank-corrupt tst-mntent-blank-passno
++ tst-mntent-blank-corrupt tst-mntent-blank-passno bug18240
ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)tst-error1-mem.out
endif
+diff --git a/misc/bug18240.c b/misc/bug18240.c
+new file mode 100644
+index 0000000..773586e
+--- /dev/null
++++ b/misc/bug18240.c
+@@ -0,0 +1,97 @@
++/* Test integer wraparound in hcreate.
++ Copyright (C) 2016 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
++ <http://www.gnu.org/licenses/>. */
++
++#include <errno.h>
++#include <limits.h>
++#include <search.h>
++#include <stdbool.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <sys/resource.h>
++
++static void
++test_size (size_t size)
++{
++ int res = hcreate (size);
++ if (res == 0)
++ {
++ if (errno == ENOMEM)
++ return;
++ printf ("error: hcreate (%zu): %m\n", size);
++ exit (1);
++ }
++ char *keys[100];
++ for (int i = 0; i < 100; ++i)
++ {
++ if (asprintf (keys + i, "%d", i) < 0)
++ {
++ printf ("error: asprintf: %m\n");
++ exit (1);
++ }
++ ENTRY e = { keys[i], (char *) "value" };
++ if (hsearch (e, ENTER) == NULL)
++ {
++ printf ("error: hsearch (\"%s\"): %m\n", keys[i]);
++ exit (1);
++ }
++ }
++ hdestroy ();
++
++ for (int i = 0; i < 100; ++i)
++ free (keys[i]);
++}
++
++static int
++do_test (void)
++{
++ /* Limit the size of the process, so that memory allocation will
++ fail without impacting the entire system. */
++ {
++ struct rlimit limit;
++ if (getrlimit (RLIMIT_AS, &limit) != 0)
++ {
++ printf ("getrlimit (RLIMIT_AS) failed: %m\n");
++ return 1;
++ }
++ long target = 100 * 1024 * 1024;
++ if (limit.rlim_cur == RLIM_INFINITY || limit.rlim_cur > target)
++ {
++ limit.rlim_cur = target;
++ if (setrlimit (RLIMIT_AS, &limit) != 0)
++ {
++ printf ("setrlimit (RLIMIT_AS) failed: %m\n");
++ return 1;
++ }
++ }
++ }
++
++ test_size (500);
++ test_size (-1);
++ test_size (-3);
++ test_size (INT_MAX - 2);
++ test_size (INT_MAX - 1);
++ test_size (INT_MAX);
++ test_size (((unsigned) INT_MAX) + 1);
++ test_size (UINT_MAX - 2);
++ test_size (UINT_MAX - 1);
++ test_size (UINT_MAX);
++ return 0;
++}
++
++#define TEST_FUNCTION do_test ()
++#include "../test-skeleton.c"
+diff --git a/misc/hsearch_r.c b/misc/hsearch_r.c
+index 9f55e84..661f0f6 100644
+--- a/misc/hsearch_r.c
++++ b/misc/hsearch_r.c
+@@ -19,7 +19,7 @@
+ #include <errno.h>
+ #include <malloc.h>
+ #include <string.h>
+-
++#include <stdint.h>
+ #include <search.h>
+
+ /* [Aho,Sethi,Ullman] Compilers: Principles, Techniques and Tools, 1986
+@@ -46,15 +46,12 @@ static int
+ isprime (unsigned int number)
+ {
+ /* no even number will be passed */
+- unsigned int div = 3;
+-
+- while (div * div < number && number % div != 0)
+- div += 2;
+-
+- return number % div != 0;
++ for (unsigned int div = 3; div <= number / div; div += 2)
++ if (number % div == 0)
++ return 0;
++ return 1;
+ }
+
+-
+ /* Before using the hash table we must allocate memory for it.
+ Test for an existing table are done. We allocate one element
+ more as the found prime number says. This is done for more effective
+@@ -81,10 +78,19 @@ __hcreate_r (nel, htab)
+ use will not work. */
+ if (nel < 3)
+ nel = 3;
+- /* Change nel to the first prime number not smaller as nel. */
+- nel |= 1; /* make odd */
+- while (!isprime (nel))
+- nel += 2;
++
++ /* Change nel to the first prime number in the range [nel, UINT_MAX - 2],
++ The '- 2' means 'nel += 2' cannot overflow. */
++ for (nel |= 1; ; nel += 2)
++ {
++ if (UINT_MAX - 2 < nel)
++ {
++ __set_errno (ENOMEM);
++ return 0;
++ }
++ if (isprime (nel))
++ break;
++ }
+
+ htab->size = nel;
+ htab->filled = 0;
diff --git a/misc/mntent_r.c b/misc/mntent_r.c
index 6159873..4f26998 100644
--- a/misc/mntent_r.c
@@ -335,6 +1458,20 @@ index 3460989..42394f7 100644
This header is provided only for backward compatibility.
It will be removed in the next release of the GNU C Library.
+diff --git a/misc/sys/param.h b/misc/sys/param.h
+index 62b7ed2..1908b93 100644
+--- a/misc/sys/param.h
++++ b/misc/sys/param.h
+@@ -50,6 +50,9 @@
+ #if !defined NOFILE && defined OPEN_MAX
+ # define NOFILE OPEN_MAX
+ #endif
++#if !defined MAXHOSTNAMELEN && defined HOST_NAME_MAX
++# define MAXHOSTNAMELEN HOST_NAME_MAX
++#endif
+ #ifndef NCARGS
+ # ifdef ARG_MAX
+ # define NCARGS ARG_MAX
diff --git a/misc/tst-mntent-blank-corrupt.c b/misc/tst-mntent-blank-corrupt.c
new file mode 100644
index 0000000..92266a3
@@ -516,6 +1653,277 @@ index cac1562..79b2b3e 100755
if ($name ne "nss_ldap" && $name ne "db1"
&& !($name =~/^nss1_/) && $name ne "thread_db"
&& $name ne "nss_test1" && $name ne "libgcc_s") {
+diff --git a/stdlib/cxa_thread_atexit_impl.c b/stdlib/cxa_thread_atexit_impl.c
+index 2d5d56a..5717f09 100644
+--- a/stdlib/cxa_thread_atexit_impl.c
++++ b/stdlib/cxa_thread_atexit_impl.c
+@@ -98,6 +98,10 @@ static __thread struct link_map *lm_cache;
+ int
+ __cxa_thread_atexit_impl (dtor_func func, void *obj, void *dso_symbol)
+ {
++#ifdef PTR_MANGLE
++ PTR_MANGLE (func);
++#endif
++
+ /* Prepend. */
+ struct dtor_list *new = calloc (1, sizeof (struct dtor_list));
+ new->func = func;
+@@ -142,9 +146,13 @@ __call_tls_dtors (void)
+ while (tls_dtor_list)
+ {
+ struct dtor_list *cur = tls_dtor_list;
++ dtor_func func = cur->func;
++#ifdef PTR_DEMANGLE
++ PTR_DEMANGLE (func);
++#endif
+
+ tls_dtor_list = tls_dtor_list->next;
+- cur->func (cur->obj);
++ func (cur->obj);
+
+ /* Ensure that the MAP dereference happens before
+ l_tls_dtor_count decrement. That way, we protect this access from a
+diff --git a/string/Makefile b/string/Makefile
+index 8424a61..ebe9354 100644
+--- a/string/Makefile
++++ b/string/Makefile
+@@ -54,7 +54,7 @@ tests := tester inl-tester noinl-tester testcopy test-ffs \
+ tst-strtok tst-strxfrm bug-strcoll1 tst-strfry \
+ bug-strtok1 $(addprefix test-,$(strop-tests)) \
+ bug-envz1 tst-strxfrm2 tst-endian tst-svc2 \
+- tst-strtok_r
++ tst-strtok_r bug-strcoll2
+
+ xtests = tst-strcoll-overflow
+
+@@ -75,4 +75,17 @@ ifeq ($(run-built-tests),yes)
+ $(objpfx)tst-svc-cmp.out: tst-svc.expect $(objpfx)tst-svc.out
+ cmp $^ > $@; \
+ $(evaluate-test)
++
++LOCALES := de_DE.UTF-8 en_US.ISO-8859-1 en_US.UTF-8 \
++ tr_TR.ISO-8859-9 tr_TR.UTF-8 cs_CZ.UTF-8 \
++ da_DK.ISO-8859-1
++include ../gen-locales.mk
++
++$(objpfx)test-strcasecmp.out: $(gen-locales)
++$(objpfx)test-strncasecmp.out: $(gen-locales)
++$(objpfx)tst-strxfrm.out: $(gen-locales)
++$(objpfx)tst-strxfrm2.out: $(gen-locales)
++# bug-strcoll2 needs cs_CZ.UTF-8 and da_DK.ISO-8859-1.
++$(objpfx)bug-strcoll2.out: $(gen-locales)
++
+ endif
+diff --git a/string/bug-strcoll2.c b/string/bug-strcoll2.c
+new file mode 100644
+index 0000000..72a9ff2
+--- /dev/null
++++ b/string/bug-strcoll2.c
+@@ -0,0 +1,92 @@
++/* Bug 18589: sort-test.sh fails at random.
++ Copyright (C) 2015 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
++ <http://www.gnu.org/licenses/>. */
++
++#include <stdio.h>
++#include <string.h>
++#include <locale.h>
++
++/* An incorrect strcoll optimization resulted in incorrect
++ results from strcoll for cs_CZ and da_DK. */
++
++int
++test_cs_CZ (void)
++{
++ const char t1[] = "config";
++ const char t2[] = "choose";
++ if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL)
++ {
++ perror ("setlocale");
++ return 1;
++ }
++ /* In Czech the digraph ch sorts after c, therefore we expect
++ config to sort before choose. */
++ int a = strcoll (t1, t2);
++ int b = strcoll (t2, t1);
++ printf ("strcoll (\"%s\", \"%s\") = %d\n", t1, t2, a);
++ printf ("strcoll (\"%s\", \"%s\") = %d\n", t2, t1, b);
++ if (a < 0 && b > 0)
++ {
++ puts ("PASS: config < choose");
++ return 0;
++ }
++ else
++ {
++ puts ("FAIL: Wrong sorting in cs_CZ.UTF-8.");
++ return 1;
++ }
++}
++
++int
++test_da_DK (void)
++{
++ const char t1[] = "AS";
++ const char t2[] = "AA";
++ if (setlocale (LC_ALL, "da_DK.ISO-8859-1") == NULL)
++ {
++ perror ("setlocale");
++ return 1;
++ }
++ /* AA should be treated as the last letter of the Danish alphabet,
++ hence sorting after AS. */
++ int a = strcoll (t1, t2);
++ int b = strcoll (t2, t1);
++ printf ("strcoll (\"%s\", \"%s\") = %d\n", t1, t2, a);
++ printf ("strcoll (\"%s\", \"%s\") = %d\n", t2, t1, b);
++ if (a < 0 && b > 0)
++ {
++ puts ("PASS: AS < AA");
++ return 0;
++ }
++ else
++ {
++ puts ("FAIL: Wrong sorting in da_DK.ISO-8859-1");
++ return 1;
++ }
++}
++
++static int
++do_test (void)
++{
++ int err = 0;
++ err |= test_cs_CZ ();
++ err |= test_da_DK ();
++ return err;
++}
++
++#define TEST_FUNCTION do_test ()
++#include "../test-skeleton.c"
+diff --git a/string/strcoll_l.c b/string/strcoll_l.c
+index 8f1225f..35bc0e4 100644
+--- a/string/strcoll_l.c
++++ b/string/strcoll_l.c
+@@ -29,7 +29,6 @@
+ # define STRING_TYPE char
+ # define USTRING_TYPE unsigned char
+ # define STRCOLL __strcoll_l
+-# define STRDIFF __strdiff
+ # define STRCMP strcmp
+ # define WEIGHT_H "../locale/weight.h"
+ # define SUFFIX MB
+@@ -42,20 +41,6 @@
+ #include "../locale/localeinfo.h"
+ #include WEIGHT_H
+
+-#define MASK_UTF8_7BIT (1 << 7)
+-#define MASK_UTF8_START (3 << 6)
+-
+-size_t
+-STRDIFF (const STRING_TYPE *s, const STRING_TYPE *t)
+-{
+- size_t n;
+-
+- for (n = 0; *s != '\0' && *s++ == *t++; ++n)
+- continue;
+-
+- return n;
+-}
+-
+ /* Track status while looking for sequences in a string. */
+ typedef struct
+ {
+@@ -269,29 +254,9 @@ STRCOLL (const STRING_TYPE *s1, const STRING_TYPE *s2, __locale_t l)
+ const USTRING_TYPE *extra;
+ const int32_t *indirect;
+
+- /* In case there is no locale specific sort order (C / POSIX). */
+ if (nrules == 0)
+ return STRCMP (s1, s2);
+
+- /* Fast forward to the position of the first difference. Needs to be
+- encoding aware as the byte-by-byte comparison can stop in the middle
+- of a char sequence for multibyte encodings like UTF-8. */
+- uint_fast32_t encoding =
+- current->values[_NL_ITEM_INDEX (_NL_COLLATE_ENCODING_TYPE)].word;
+- if (encoding != __cet_other)
+- {
+- size_t diff = STRDIFF (s1, s2);
+- if (diff > 0)
+- {
+- if (encoding == __cet_utf8 && (*(s1 + diff) & MASK_UTF8_7BIT) != 0)
+- do
+- diff--;
+- while (diff > 0 && (*(s1 + diff) & MASK_UTF8_START) != MASK_UTF8_START);
+- s1 += diff;
+- s2 += diff;
+- }
+- }
+-
+ /* Catch empty strings. */
+ if (__glibc_unlikely (*s1 == '\0') || __glibc_unlikely (*s2 == '\0'))
+ return (*s1 != '\0') - (*s2 != '\0');
+@@ -358,8 +323,7 @@ STRCOLL (const STRING_TYPE *s1, const STRING_TYPE *s2, __locale_t l)
+ byte-level comparison to ensure that we don't waste time
+ going through multiple passes for totally equal strings
+ before proceeding to subsequent passes. */
+- if (pass == 0 && encoding == __cet_other &&
+- STRCMP (s1, s2) == 0)
++ if (pass == 0 && STRCMP (s1, s2) == 0)
+ return result;
+ else
+ break;
+diff --git a/string/tst-strxfrm2.c b/string/tst-strxfrm2.c
+index d5a1115..bea5aa2 100644
+--- a/string/tst-strxfrm2.c
++++ b/string/tst-strxfrm2.c
+@@ -5,6 +5,8 @@
+ static int
+ do_test (void)
+ {
++ static const char test_locale[] = "de_DE.UTF-8";
++
+ int res = 0;
+
+ char buf[20];
+@@ -38,9 +40,9 @@ do_test (void)
+ res = 1;
+ }
+
+- if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
++ if (setlocale (LC_ALL, test_locale) == NULL)
+ {
+- puts ("setlocale failed");
++ printf ("cannot set locale \"%s\"\n", test_locale);
+ res = 1;
+ }
+ else
+diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
+index 7a0fe8d..78e3a97 100644
+--- a/sysdeps/generic/ldsodefs.h
++++ b/sysdeps/generic/ldsodefs.h
+@@ -592,9 +592,6 @@ struct rtld_global_ro
+ /* List of auditing interfaces. */
+ struct audit_ifaces *_dl_audit;
+ unsigned int _dl_naudit;
+-
+- /* 0 if internal pointer values should not be guarded, 1 if they should. */
+- EXTERN int _dl_pointer_guard;
+ };
+ # define __rtld_global_attribute__
+ # if IS_IN (rtld)
diff --git a/sysdeps/hppa/dl-symaddr.c b/sysdeps/hppa/dl-symaddr.c
index b707c19..89d8baf 100644
--- a/sysdeps/hppa/dl-symaddr.c
@@ -525,6 +1933,204 @@ index b707c19..89d8baf 100644
return (void *) value;
}
+rtld_hidden_def (_dl_symbol_address)
+diff --git a/sysdeps/hppa/start.S b/sysdeps/hppa/start.S
+index 64d8c3e..cc4f243 100644
+--- a/sysdeps/hppa/start.S
++++ b/sysdeps/hppa/start.S
+@@ -42,7 +42,11 @@
+ /* Have the linker create plabel words so we get PLABEL32
+ relocs and not 21/14. The use of 21/14 relocs is only
+ supported in the latest dynamic linker. */
+- .section .rodata
++#ifdef SHARED
++ .section .data.rel.ro,"aw",@progbits
++#else
++ .section .rodata,"a",@progbits
++#endif
+ .align 4
+ .Lpmain:
+ .word P%main
+@@ -52,6 +56,10 @@
+ .word P%__libc_csu_fini
+ .Lp__libc_csu_init:
+ .word P%__libc_csu_init
++#ifdef SHARED
++.Lp__global:
++ .word $global$
++#endif
+
+ .text
+ .align 4
+@@ -122,10 +130,14 @@ _start:
+ /* void *stack_end (7th argument) */
+ stw %sp, -60(%sp)
+
++#ifdef SHARED
++ addil LT'.Lp__global, %r19
++ ldw RT'.Lp__global(%r1), %dp
++#else
+ /* load global */
+ ldil L%$global$, %dp
+ ldo R%$global$(%dp), %dp
+-
++#endif
+ bl __libc_start_main,%r2
+ nop
+ /* die horribly if it returned (it shouldn't) */
+diff --git a/sysdeps/nacl/Makefile b/sysdeps/nacl/Makefile
+index 6749a44..1748886 100644
+--- a/sysdeps/nacl/Makefile
++++ b/sysdeps/nacl/Makefile
+@@ -132,4 +132,13 @@ ifeq ($(subdir),misc)
+ # sysdeps/.../linux/ directories, but it's still a sysdeps decision to
+ # install it.
+ sysdep_headers += bits/mman-linux.h
++
++# This defeats sysdeps/gnu/Makefile's addition of sys/mtio.h, which
++# we do not want. This is a total kludge, but it seems no worse for
++# now than making the sysdeps/gnu/Makefile code conditional on a
++# variable we set here. If some sysdeps/.../Makefile that is later
++# in the list than sysdeps/gnu needed to add to sysdep_headers, this
++# would break it. But sysdeps/gnu is close to last in the list and
++# this coming up seems unlikely.
++override sysdep_headers := $(sysdep_headers)
+ endif
+diff --git a/sysdeps/nacl/dl-map-segments.h b/sysdeps/nacl/dl-map-segments.h
+index f305da3..f2d5d84 100644
+--- a/sysdeps/nacl/dl-map-segments.h
++++ b/sysdeps/nacl/dl-map-segments.h
+@@ -53,7 +53,7 @@ _dl_map_segments (struct link_map *l, int fd,
+ const size_t maplength, bool has_holes,
+ struct link_map *loader)
+ {
+- if (__builtin_expect (type, ET_DYN) == ET_DYN)
++ if (__glibc_likely (type == ET_DYN))
+ {
+ /* This is a position-independent shared object. Let the system
+ choose where to place it.
+@@ -165,6 +165,32 @@ _dl_map_segments (struct link_map *l, int fd,
+ errno = error;
+ return DL_MAP_SEGMENTS_ERROR_MAP_SEGMENT;
+ }
++ if (__glibc_unlikely (type != ET_DYN))
++ {
++ /* A successful PROT_EXEC mmap would have implicitly
++ updated the bookkeeping so that a future
++ allocate_code_data call would know that this range
++ of the address space is already occupied. That
++ doesn't happen implicitly with dyncode_create, so
++ it's necessary to do an explicit call to update the
++ bookkeeping. */
++ uintptr_t allocated_address;
++ error = __nacl_irt_code_data_alloc.allocate_code_data
++ (l->l_addr + c->mapstart, len, 0, 0, &allocated_address);
++ if (__glibc_unlikely (error))
++ {
++ errno = error;
++ return DL_MAP_SEGMENTS_ERROR_MAP_SEGMENT;
++ }
++ if (__glibc_unlikely
++ (allocated_address != l->l_addr + c->mapstart))
++ {
++ /* This is not a very helpful error for this case,
++ but there isn't really anything better to use. */
++ errno = ENOMEM;
++ return DL_MAP_SEGMENTS_ERROR_MAP_SEGMENT;
++ }
++ }
+ }
+ else
+ {
+diff --git a/sysdeps/nacl/dl-sysdep-open.h b/sysdeps/nacl/dl-sysdep-open.h
+new file mode 100644
+index 0000000..38b0f9e
+--- /dev/null
++++ b/sysdeps/nacl/dl-sysdep-open.h
+@@ -0,0 +1,40 @@
++/* System-specific call to open a shared object by name. NaCl version.
++ Copyright (C) 2015 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
++ <http://www.gnu.org/licenses/>. */
++
++#ifndef _DL_SYSDEP_OPEN_H
++#define _DL_SYSDEP_OPEN_H 1
++
++#include <stddef.h>
++
++/* NAME is a name without slashes, as it appears in a DT_NEEDED entry
++ or a dlopen call's argument or suchlike. NAMELEN is (strlen (NAME) + 1).
++
++ Find NAME in an OS-dependent fashion, and return its "real" name.
++ Optionally fill in *FD with a file descriptor open on that file (or
++ else leave its initial value of -1). The return value is a new
++ malloc'd string, which will be free'd by the caller. If NAME is
++ resolved to an actual file that can be opened, then the return
++ value should name that file (and if *FD was not set, then a normal
++ __open call on that string will be made). If *FD was set by some
++ other means than a normal open and there is no "real" name to use,
++ then __strdup (NAME) is fine (modulo error checking). */
++
++extern char *_dl_sysdep_open_object (const char *name, size_t namelen, int *fd)
++ internal_function attribute_hidden;
++
++#endif /* dl-sysdep-open.h */
+diff --git a/sysdeps/nacl/dl-sysdep.c b/sysdeps/nacl/dl-sysdep.c
+index 3e902c2..3a04aa1 100644
+--- a/sysdeps/nacl/dl-sysdep.c
++++ b/sysdeps/nacl/dl-sysdep.c
+@@ -87,3 +87,26 @@ _dl_start_user (void (*user_entry) (uint32_t info[]), uint32_t info[])
+ #endif /* SHARED */
+
+ #include <elf/dl-sysdep.c>
++
++#include <dl-sysdep-open.h>
++#include <nacl-interfaces.h>
++#include <assert.h>
++#include <string.h>
++#include <unistd.h>
++
++char *
++internal_function
++_dl_sysdep_open_object (const char *name, size_t namelen, int *fd)
++{
++ int error = __nacl_irt_resource_open.open_resource (name, fd);
++ if (error)
++ return NULL;
++ assert (*fd != -1);
++ char *realname = __strdup (name);
++ if (__glibc_unlikely (realname == NULL))
++ {
++ __close (*fd);
++ *fd = -1;
++ }
++ return realname;
++}
+diff --git a/sysdeps/nacl/nacl-interface-list.h b/sysdeps/nacl/nacl-interface-list.h
+index cb33751..c68faed 100644
+--- a/sysdeps/nacl/nacl-interface-list.h
++++ b/sysdeps/nacl/nacl-interface-list.h
+@@ -28,7 +28,7 @@ NACL_MANDATORY_INTERFACE (rtld,
+ NACL_IRT_FUTEX_v0_1, nacl_irt_futex)
+ NACL_MANDATORY_INTERFACE (rtld,
+ NACL_IRT_TLS_v0_1, nacl_irt_tls)
+-NACL_MANDATORY_INTERFACE (libc,
++NACL_MANDATORY_INTERFACE (rtld,
+ NACL_IRT_RESOURCE_OPEN_v0_1, nacl_irt_resource_open)
+ NACL_MANDATORY_INTERFACE (rtld,
+ NACL_IRT_CODE_DATA_ALLOC_v0_1,
diff --git a/sysdeps/nacl/start.c b/sysdeps/nacl/start.c
index a4b6dd3..8e8bc1a 100644
--- a/sysdeps/nacl/start.c
@@ -549,6 +2155,154 @@ index a4b6dd3..8e8bc1a 100644
nacl_startup_argc (info),
nacl_startup_argv (info),
nacl_startup_auxv (info),
+diff --git a/sysdeps/posix/opendir.c b/sysdeps/posix/opendir.c
+index 6509f5c..9edf056 100644
+--- a/sysdeps/posix/opendir.c
++++ b/sysdeps/posix/opendir.c
+@@ -105,7 +105,7 @@ need_isdir_precheck (void)
+ tryopen_o_directory ();
+
+ /* We can skip the expensive `stat' call if O_DIRECTORY works. */
+- return o_directory_works > 0;
++ return o_directory_works < 0;
+ #endif
+ return true;
+ }
+diff --git a/sysdeps/powerpc/nptl/elide.h b/sysdeps/powerpc/nptl/elide.h
+index 389f5a5..2e1e443 100644
+--- a/sysdeps/powerpc/nptl/elide.h
++++ b/sysdeps/powerpc/nptl/elide.h
+@@ -23,67 +23,78 @@
+ # include <htm.h>
+ # include <elision-conf.h>
+
+-/* Returns true if the lock defined by is_lock_free as elided.
+- ADAPT_COUNT is a pointer to per-lock state variable. */
+-
++/* Get the new value of adapt_count according to the elision
++ configurations. Returns true if the system should retry again or false
++ otherwise. */
+ static inline bool
+-__elide_lock (uint8_t *adapt_count, int is_lock_free)
++__get_new_count (uint8_t *adapt_count, int attempt)
+ {
+- if (*adapt_count > 0)
++ /* A persistent failure indicates that a retry will probably
++ result in another failure. Use normal locking now and
++ for the next couple of calls. */
++ if (_TEXASRU_FAILURE_PERSISTENT (__builtin_get_texasru ()))
+ {
+- (*adapt_count)--;
++ if (__elision_aconf.skip_lock_internal_abort > 0)
++ *adapt_count = __elision_aconf.skip_lock_internal_abort;
+ return false;
+ }
+-
+- for (int i = __elision_aconf.try_tbegin; i > 0; i--)
+- {
+- if (__builtin_tbegin (0))
+- {
+- if (is_lock_free)
+- return true;
+- /* Lock was busy. */
+- __builtin_tabort (_ABORT_LOCK_BUSY);
+- }
+- else
+- {
+- /* A persistent failure indicates that a retry will probably
+- result in another failure. Use normal locking now and
+- for the next couple of calls. */
+- if (_TEXASRU_FAILURE_PERSISTENT (__builtin_get_texasru ()))
+- {
+- if (__elision_aconf.skip_lock_internal_abort > 0)
+- *adapt_count = __elision_aconf.skip_lock_internal_abort;
+- break;
+- }
+- /* Same logic as above, but for a number of temporary failures in a
+- a row. */
+- else if (__elision_aconf.skip_lock_out_of_tbegin_retries > 0
+- && __elision_aconf.try_tbegin > 0)
+- *adapt_count = __elision_aconf.skip_lock_out_of_tbegin_retries;
+- }
+- }
+-
+- return false;
++ /* Same logic as above, but for a number of temporary failures in a
++ a row. */
++ else if (attempt <= 1 && __elision_aconf.skip_lock_out_of_tbegin_retries > 0
++ && __elision_aconf.try_tbegin > 0)
++ *adapt_count = __elision_aconf.skip_lock_out_of_tbegin_retries;
++ return true;
+ }
+
+-# define ELIDE_LOCK(adapt_count, is_lock_free) \
+- __elide_lock (&(adapt_count), is_lock_free)
+-
+-
+-static inline bool
+-__elide_trylock (uint8_t *adapt_count, int is_lock_free, int write)
+-{
+- if (__elision_aconf.try_tbegin > 0)
+- {
+- if (write)
+- __builtin_tabort (_ABORT_NESTED_TRYLOCK);
+- return __elide_lock (adapt_count, is_lock_free);
+- }
+- return false;
+-}
++/* CONCURRENCY NOTES:
++
++ The evaluation of the macro expression is_lock_free encompasses one or
++ more loads from memory locations that are concurrently modified by other
++ threads. For lock elision to work, this evaluation and the rest of the
++ critical section protected by the lock must be atomic because an
++ execution with lock elision must be equivalent to an execution in which
++ the lock would have been actually acquired and released. Therefore, we
++ evaluate is_lock_free inside of the transaction that represents the
++ critical section for which we want to use lock elision, which ensures
++ the atomicity that we require. */
++
++/* Returns 0 if the lock defined by is_lock_free was elided.
++ ADAPT_COUNT is a per-lock state variable. */
++# define ELIDE_LOCK(adapt_count, is_lock_free) \
++ ({ \
++ int ret = 0; \
++ if (adapt_count > 0) \
++ (adapt_count)--; \
++ else \
++ for (int i = __elision_aconf.try_tbegin; i > 0; i--) \
++ { \
++ if (__builtin_tbegin (0)) \
++ { \
++ if (is_lock_free) \
++ { \
++ ret = 1; \
++ break; \
++ } \
++ __builtin_tabort (_ABORT_LOCK_BUSY); \
++ } \
++ else \
++ if (!__get_new_count (&adapt_count,i)) \
++ break; \
++ } \
++ ret; \
++ })
+
+ # define ELIDE_TRYLOCK(adapt_count, is_lock_free, write) \
+- __elide_trylock (&(adapt_count), is_lock_free, write)
++ ({ \
++ int ret = 0; \
++ if (__elision_aconf.try_tbegin > 0) \
++ { \
++ if (write) \
++ __builtin_tabort (_ABORT_NESTED_TRYLOCK); \
++ ret = ELIDE_LOCK (adapt_count, is_lock_free); \
++ } \
++ ret; \
++ })
+
+
+ static inline bool
diff --git a/sysdeps/sparc/sparc32/sem_open.c b/sysdeps/sparc/sparc32/sem_open.c
index 16cb9ad..59df2d7 100644
--- a/sysdeps/sparc/sparc32/sem_open.c
@@ -561,6 +2315,30 @@ index 16cb9ad..59df2d7 100644
#include <shm-directory.h>
+diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
+index 58c8b32..aa20e22 100644
+--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
++++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
+@@ -1822,9 +1822,6 @@ GLIBC_2.17
+ GLIBC_2.18
+ GLIBC_2.18 A
+ __cxa_thread_atexit_impl F
+-GLIBC_2.22
+- GLIBC_2.22 A
+- fmemopen F
+ GLIBC_2.2
+ GLIBC_2.2 A
+ _IO_adjust_wcolumn F
+@@ -2015,6 +2012,9 @@ GLIBC_2.2.4
+ GLIBC_2.2.6
+ GLIBC_2.2.6 A
+ __nanosleep F
++GLIBC_2.22
++ GLIBC_2.22 A
++ fmemopen F
+ GLIBC_2.3
+ GLIBC_2.3 A
+ __ctype_b_loc F
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/atomic.h b/sysdeps/unix/sysv/linux/hppa/bits/atomic.h
index abde83e..6e73504 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/atomic.h
@@ -625,6 +2403,138 @@ index abde83e..6e73504 100644
})
# define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
+diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
+index cf0ad90..224e1f3 100644
+--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
++++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
+@@ -95,9 +95,6 @@ GLIBC_2.18
+ GLIBC_2.19
+ GLIBC_2.19 A
+ fanotify_mark F
+-GLIBC_2.22
+- GLIBC_2.22 A
+- fmemopen F
+ GLIBC_2.2
+ GLIBC_2.2 A
+ _Exit F
+@@ -1863,6 +1860,9 @@ GLIBC_2.2.4
+ GLIBC_2.2.6
+ GLIBC_2.2.6 A
+ __nanosleep F
++GLIBC_2.22
++ GLIBC_2.22 A
++ fmemopen F
+ GLIBC_2.3
+ GLIBC_2.3 A
+ __ctype_b_loc F
+diff --git a/sysdeps/unix/sysv/linux/hppa/syscall.c b/sysdeps/unix/sysv/linux/hppa/syscall.c
+index aff67a8..958fa47 100644
+--- a/sysdeps/unix/sysv/linux/hppa/syscall.c
++++ b/sysdeps/unix/sysv/linux/hppa/syscall.c
+@@ -43,9 +43,10 @@ syscall (long int __sysno, ...)
+ va_end (args);
+
+ {
++ LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)
+ register unsigned long int __res asm("r28");
+ PIC_REG_DEF
+- LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)
++ LOAD_REGS_6
+ asm volatile (SAVE_ASM_PIC
+ " ble 0x100(%%sr2, %%r0) \n"
+ " copy %1, %%r20 \n"
+diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h b/sysdeps/unix/sysv/linux/hppa/sysdep.h
+index d20a04b..cb1f163 100644
+--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
++++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
+@@ -400,9 +400,10 @@ L(pre_end): ASM_LINE_SEP \
+ ({ \
+ long __sys_res; \
+ { \
++ LOAD_ARGS_##nr(args) \
+ register unsigned long __res asm("r28"); \
+ PIC_REG_DEF \
+- LOAD_ARGS_##nr(args) \
++ LOAD_REGS_##nr \
+ /* FIXME: HACK save/load r19 around syscall */ \
+ asm volatile( \
+ SAVE_ASM_PIC \
+@@ -425,9 +426,10 @@ L(pre_end): ASM_LINE_SEP \
+ ({ \
+ long __sys_res; \
+ { \
++ LOAD_ARGS_##nr(args) \
+ register unsigned long __res asm("r28"); \
+ PIC_REG_DEF \
+- LOAD_ARGS_##nr(args) \
++ LOAD_REGS_##nr \
+ /* FIXME: HACK save/load r19 around syscall */ \
+ asm volatile( \
+ SAVE_ASM_PIC \
+@@ -443,27 +445,44 @@ L(pre_end): ASM_LINE_SEP \
+ __sys_res; \
+ })
+
+-
+-
+ #define LOAD_ARGS_0()
+-#define LOAD_ARGS_1(r26) \
+- register unsigned long __r26 __asm__("r26") = (unsigned long)(r26); \
++#define LOAD_REGS_0
++#define LOAD_ARGS_1(a1) \
++ register unsigned long __x26 = (unsigned long)(a1); \
+ LOAD_ARGS_0()
+-#define LOAD_ARGS_2(r26,r25) \
+- register unsigned long __r25 __asm__("r25") = (unsigned long)(r25); \
+- LOAD_ARGS_1(r26)
+-#define LOAD_ARGS_3(r26,r25,r24) \
+- register unsigned long __r24 __asm__("r24") = (unsigned long)(r24); \
+- LOAD_ARGS_2(r26,r25)
+-#define LOAD_ARGS_4(r26,r25,r24,r23) \
+- register unsigned long __r23 __asm__("r23") = (unsigned long)(r23); \
+- LOAD_ARGS_3(r26,r25,r24)
+-#define LOAD_ARGS_5(r26,r25,r24,r23,r22) \
+- register unsigned long __r22 __asm__("r22") = (unsigned long)(r22); \
+- LOAD_ARGS_4(r26,r25,r24,r23)
+-#define LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \
+- register unsigned long __r21 __asm__("r21") = (unsigned long)(r21); \
+- LOAD_ARGS_5(r26,r25,r24,r23,r22)
++#define LOAD_REGS_1 \
++ register unsigned long __r26 __asm__("r26") = __x26; \
++ LOAD_REGS_0
++#define LOAD_ARGS_2(a1,a2) \
++ register unsigned long __x25 = (unsigned long)(a2); \
++ LOAD_ARGS_1(a1)
++#define LOAD_REGS_2 \
++ register unsigned long __r25 __asm__("r25") = __x25; \
++ LOAD_REGS_1
++#define LOAD_ARGS_3(a1,a2,a3) \
++ register unsigned long __x24 = (unsigned long)(a3); \
++ LOAD_ARGS_2(a1,a2)
++#define LOAD_REGS_3 \
++ register unsigned long __r24 __asm__("r24") = __x24; \
++ LOAD_REGS_2
++#define LOAD_ARGS_4(a1,a2,a3,a4) \
++ register unsigned long __x23 = (unsigned long)(a4); \
++ LOAD_ARGS_3(a1,a2,a3)
++#define LOAD_REGS_4 \
++ register unsigned long __r23 __asm__("r23") = __x23; \
++ LOAD_REGS_3
++#define LOAD_ARGS_5(a1,a2,a3,a4,a5) \
++ register unsigned long __x22 = (unsigned long)(a5); \
++ LOAD_ARGS_4(a1,a2,a3,a4)
++#define LOAD_REGS_5 \
++ register unsigned long __r22 __asm__("r22") = __x22; \
++ LOAD_REGS_4
++#define LOAD_ARGS_6(a1,a2,a3,a4,a5,a6) \
++ register unsigned long __x21 = (unsigned long)(a6); \
++ LOAD_ARGS_5(a1,a2,a3,a4,a5)
++#define LOAD_REGS_6 \
++ register unsigned long __r21 __asm__("r21") = __x21; \
++ LOAD_REGS_5
+
+ /* Even with zero args we use r20 for the syscall number */
+ #define ASM_ARGS_0
diff --git a/sysdeps/unix/sysv/linux/microblaze/sysdep.h b/sysdeps/unix/sysv/linux/microblaze/sysdep.h
index 83c0340..9d5c542 100644
--- a/sysdeps/unix/sysv/linux/microblaze/sysdep.h
@@ -664,3 +2574,174 @@ index 6777123..ad8e31d 100644
return SYSCALL_CANCEL (openat, fd, file, oflag, mode);
}
libc_hidden_def (__OPENAT)
+diff --git a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c b/sysdeps/unix/sysv/linux/powerpc/elision-lock.c
+index 7f9bcc2..c6731ca 100644
+--- a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c
++++ b/sysdeps/unix/sysv/linux/powerpc/elision-lock.c
+@@ -72,8 +72,7 @@ __lll_lock_elision (int *lock, short *adapt_count, EXTRAARG int pshared)
+ goto use_lock;
+ }
+
+- int try_begin = aconf.try_tbegin;
+- while (1)
++ for (int i = aconf.try_tbegin; i > 0; i--)
+ {
+ if (__builtin_tbegin (0))
+ {
+@@ -87,21 +86,19 @@ __lll_lock_elision (int *lock, short *adapt_count, EXTRAARG int pshared)
+ /* A persistent failure indicates that a retry will probably
+ result in another failure. Use normal locking now and
+ for the next couple of calls. */
+- if (try_begin-- <= 0
+- || _TEXASRU_FAILURE_PERSISTENT (__builtin_get_texasru ()))
++ if (_TEXASRU_FAILURE_PERSISTENT (__builtin_get_texasru ()))
+ {
+ if (aconf.skip_lock_internal_abort > 0)
+ *adapt_count = aconf.skip_lock_internal_abort;
+ goto use_lock;
+ }
+- /* Same logic as above, but for for a number of temporary failures
+- in a row. */
+- else if (aconf.skip_lock_out_of_tbegin_retries > 0
+- && aconf.try_tbegin > 0)
+- *adapt_count = aconf.skip_lock_out_of_tbegin_retries;
+ }
+ }
+
++ /* Fall back to locks for a bit if retries have been exhausted */
++ if (aconf.try_tbegin > 0 && aconf.skip_lock_out_of_tbegin_retries > 0)
++ *adapt_count = aconf.skip_lock_out_of_tbegin_retries;
++
+ use_lock:
+ return LLL_LOCK ((*lock), pshared);
+ }
+diff --git a/time/strftime_l.c b/time/strftime_l.c
+index b48ef34..4eb647c 100644
+--- a/time/strftime_l.c
++++ b/time/strftime_l.c
+@@ -510,13 +510,17 @@ __strftime_internal (s, maxsize, format, tp, tzset_called ut_argument
+ only a few elements. Dereference the pointers only if the format
+ requires this. Then it is ok to fail if the pointers are invalid. */
+ # define a_wkday \
+- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday))
++ ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6 \
++ ? "?" : _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)))
+ # define f_wkday \
+- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday))
++ ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6 \
++ ? "?" : _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)))
+ # define a_month \
+- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon))
++ ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \
++ ? "?" : _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)))
+ # define f_month \
+- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon))
++ ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \
++ ? "?" : _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)))
+ # define ampm \
+ ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \
+ ? NLW(PM_STR) : NLW(AM_STR)))
+@@ -526,8 +530,10 @@ __strftime_internal (s, maxsize, format, tp, tzset_called ut_argument
+ # define ap_len STRLEN (ampm)
+ #else
+ # if !HAVE_STRFTIME
+-# define f_wkday (weekday_name[tp->tm_wday])
+-# define f_month (month_name[tp->tm_mon])
++# define f_wkday (tp->tm_wday < 0 || tp->tm_wday > 6 \
++ ? "?" : weekday_name[tp->tm_wday])
++# define f_month (tp->tm_mon < 0 || tp->tm_mon > 11 \
++ ? "?" : month_name[tp->tm_mon])
+ # define a_wkday f_wkday
+ # define a_month f_month
+ # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11))
+@@ -1321,7 +1327,7 @@ __strftime_internal (s, maxsize, format, tp, tzset_called ut_argument
+ *tzset_called = true;
+ }
+ # endif
+- zone = tzname[tp->tm_isdst];
++ zone = tp->tm_isdst <= 1 ? tzname[tp->tm_isdst] : "?";
+ }
+ #endif
+ if (! zone)
+diff --git a/time/tst-strftime.c b/time/tst-strftime.c
+index 374fba4..af3ff72 100644
+--- a/time/tst-strftime.c
++++ b/time/tst-strftime.c
+@@ -4,6 +4,56 @@
+ #include <time.h>
+
+
++static int
++do_bz18985 (void)
++{
++ char buf[1000];
++ struct tm ttm;
++ int rc, ret = 0;
++
++ memset (&ttm, 1, sizeof (ttm));
++ ttm.tm_zone = NULL; /* Dereferenced directly if non-NULL. */
++ rc = strftime (buf, sizeof (buf), "%a %A %b %B %c %z %Z", &ttm);
++
++ if (rc == 66)
++ {
++ const char expected[]
++ = "? ? ? ? ? ? 16843009 16843009:16843009:16843009 16844909 +467836 ?";
++ if (0 != strcmp (buf, expected))
++ {
++ printf ("expected:\n %s\ngot:\n %s\n", expected, buf);
++ ret += 1;
++ }
++ }
++ else
++ {
++ printf ("expected 66, got %d\n", rc);
++ ret += 1;
++ }
++
++ /* Check negative values as well. */
++ memset (&ttm, 0xFF, sizeof (ttm));
++ ttm.tm_zone = NULL; /* Dereferenced directly if non-NULL. */
++ rc = strftime (buf, sizeof (buf), "%a %A %b %B %c %z %Z", &ttm);
++
++ if (rc == 30)
++ {
++ const char expected[] = "? ? ? ? ? ? -1 -1:-1:-1 1899 ";
++ if (0 != strcmp (buf, expected))
++ {
++ printf ("expected:\n %s\ngot:\n %s\n", expected, buf);
++ ret += 1;
++ }
++ }
++ else
++ {
++ printf ("expected 30, got %d\n", rc);
++ ret += 1;
++ }
++
++ return ret;
++}
++
+ static struct
+ {
+ const char *fmt;
+@@ -104,7 +154,7 @@ do_test (void)
+ }
+ }
+
+- return result;
++ return result + do_bz18985 ();
+ }
+
+ #define TEST_FUNCTION do_test ()
+diff --git a/wcsmbs/wcscoll_l.c b/wcsmbs/wcscoll_l.c
+index 6d9384a..87f240d 100644
+--- a/wcsmbs/wcscoll_l.c
++++ b/wcsmbs/wcscoll_l.c
+@@ -23,7 +23,6 @@
+ #define STRING_TYPE wchar_t
+ #define USTRING_TYPE wint_t
+ #define STRCOLL __wcscoll_l
+-#define STRDIFF __wcsdiff
+ #define STRCMP __wcscmp
+ #define WEIGHT_H "../locale/weightwc.h"
+ #define SUFFIX WC