• Release
• 2.25

Release/2.25

1. Current status

The release branch of glibc-2.25 is maintained by Siddhesh Poyarekar and was released on 2017-02-05. There are no immediate plans for the next release.

The ref structure of this branch is:

• release/2.25/master: main branch
• glibc-2.25.N: revision releases tagged out of release/2.25/master

These people are interested in contents and further revisions tagged on the branch:

• <Add your name here>

The general policies for release branches apply to this branch. Do you think a certain bugfix should be included in this branch?

1. Is the fix committed in master? It has to be, unless it's not applicable to master (e.g. code has been rewritten meantime).
2. Do you have commit permissions? If so, go ahead if you think it's reasonably safe. break;
3. Can you handle Git yourself? Then you can clone the glibc repository, cherry-pick the appropriate fixes, push your branch out and send a pull request at libc-alpha. break;
4. Add the glibc_2.25 keyword to the appropriate bug report.
5. If there is no appropriate bug report, send a request for the fix to be included to libc-alpha.

A revision release is tagged either when some critical bug-fix appears, or after some period of real-world testing, usually mainly in some SUSE distribution branch (but other distributions are welcome to run latest release/2.25/master as well, more so if they tell me about it!).

2. Planning

What things do we want to accomplish this release?

2.1. Release blockers?

2.2. Desirable this release?

• _Float128 support on ppc64le

• Consolidate Linux sysvipc implementation

3. Known Issues

3.1. Build and test issues

Describe build and test issues for each architecture, or confirm a clean build with no testsuite failures. The list below is not a complete list of ABI variants; testing should try to cover the different ABI variants as far as possible.

Build system: UNAME -a, GCC?, Binutils?, Kernel ?

TRIMMED LIST OF FAILURES.

3.1.1. Architecture-independent

• On systems with limited memory, stdio-common/test-vfprintf and stdio-common/bug22 may fail (bug 14231).

• If cross-testing, and the physical path to the build directory is different on the build system and the host used for testing (if it involves a symlink on one system but not the other), io/ftwtest fails.
• If cross-testing and the system on which glibc runs does not have cpp (used by rpcgen), sunrpc/bug20790 fails.
• If cross-testing and the system on which glibc runs does not have python3 or python (whichever was found by configure on the build system), the pretty printers tests fail:

  FAIL: nptl/test-cond-printers
  FAIL: nptl/test-condattr-printers
  FAIL: nptl/test-mutex-printers
  FAIL: nptl/test-mutexattr-printers
  FAIL: nptl/test-rwlock-printers
  FAIL: nptl/test-rwlockattr-printers

  Similarly if the system lacks PExpect 4.0 or newer the same tests fail. Similarly if the system lacks gdb 7.8 or newer the same tests fail.
• On systems with Linux kernel 3.11 through 3.17, missing a backport of commit 69a91c237ab0ebe4e9fdeaf6d0090c85275594ec (present in 3.18, backports may be in some older stable series), io/tst-open-tmpfile fails.
• timezone/tst-tzset creates a 4GB file in $TMPDIR and fails if there is not enough disk space.

• If the test system does not have suitable copies of libgcc_s.so and libstdc++.so installed in system library directories, it is necessary to copy or symlink them into the build directory before testing (see https://sourceware.org/ml/libc-alpha/2012-04/msg01014.html regarding the use of system library directories here).

• On configurations that build with --enable-nss-crypt the following failures occur:

  FAIL: conform/UNIX98/unistd.h/linknamespace
  FAIL: conform/XOPEN2K/unistd.h/linknamespace
  FAIL: conform/XOPEN2K8/unistd.h/linknamespace
  FAIL: conform/XPG3/unistd.h/linknamespace
  FAIL: conform/XPG4/unistd.h/linknamespace

  these failures are due to the NSS functions polluting the namespace e.g.

  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOWHASH_Begin
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOWHASH_Destroy
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOWHASH_End
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOWHASH_NewContext
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOWHASH_Update
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOW_Init
  [initial] crypt -> [libcrypt.a(crypt-entry.o)] __md5_crypt -> [libcrypt.a(md5-crypt.o)] NSSLOW_Shutdown

3.1.2. AArch64

Build system: GCC 6.3.1 20170116, binutils 2.26.2.20160726, Linux 4.2.0-30-generic (Szabolcs Nagy)

FAIL: debug/tst-backtrace5
FAIL: debug/tst-backtrace6
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
UNSUPPORTED: math/test-nearbyint-except-2
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
Summary of test results:
      4 FAIL
   2589 PASS
      9 UNSUPPORTED
     43 XFAIL
      2 XPASS

• elf/tst-tls-manydynamic is a regression introduced in 17af5da98cd2c9ec958421ae2108f877e0945451

Build system: RHEL 7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), binutils 2.27-1.base.el7, linux 4.5.0-15.el7.aarch64 (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
FAIL: debug/tst-backtrace5
FAIL: debug/tst-backtrace6
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
FAIL: math/basic-test
FAIL: math/test-double
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-float
FAIL: math/test-ldouble
UNSUPPORTED: math/test-nearbyint-except-2
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
UNSUPPORTED: nptl/tst-thread_local1
FAIL: rt/tst-mqueue6
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
     14 FAIL
   2547 PASS
     12 UNSUPPORTED
     43 XFAIL
      2 XPASS

• The tst-thread_local1, tst-quick_exit and tst-thread-quick_exit UNSUPPORTED entries are because the compiler version doesn't support thread local for C++.
• The tst-mqueue6 failure is a timeout issue, test passes on an unloaded system.

• The tst-stack4 failure is a segfault and this is bug 19329 (https://sourceware.org/bugzilla/show_bug.cgi?id=19329).

• The 6 printers tests fail because RHEL7 lacks gdb 7.8 (only gdb 7.6 is available).

• The tst-backtrace5 and test-backtrace6 are discussed here: https://sourceware.org/ml/libc-alpha/2014-08/msg00139.html

• The tst-tls-manydynamic failure is bug 20915 (https://sourceware.org/bugzilla/show_bug.cgi?id=20915).

• The math/basic-test failure is:

  Failure:  long double x = (long double) (float) sNaN, !issignaling
  Failure:  long double x = (long double) (double) sNaN, !issignaling

• The math/test-float failures is:

  testing float (without inline functions)
  Failure: tgamma_upward (-0x1.86a08p+16): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x1.f40002p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x2.a00004p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x2.ee0004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x3.200004p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x3.e80004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x4.e20008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x5.dc0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x5.f0e02p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.400008p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.d60008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e2fff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e40008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e4fff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e60008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ec0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ecfff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ee0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.eefff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x9.60001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xa.c0001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.4ffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.60001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.6ffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.80001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.c0001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.cffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.e0001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.effffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xf.a0001p+4): errno set to 0, expected 34 (ERANGE)

• The math/test-double failures is:

  testing double (without inline functions)
  Failure: tgamma_upward (-0x1.86a08p+16): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x1.f400000000001p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x1.f40002p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x2.ee00000000002p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x2.ee0004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x3.e800000000002p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x3.e80004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x4.e200000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x4.e20008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x5.dc00000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x5.dc0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x5.f0e02p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.d600000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.d60008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e2fff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e2ffffffffffcp+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e400000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e40008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e4fff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e4ffffffffffcp+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e600000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.e60008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ec00000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ec0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ecfff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ecffffffffffcp+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ee00000000004p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.ee0008p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.eefff8p+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0x6.eeffffffffffcp+8): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.4ffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.60001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.6ffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.8000000000008p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.80001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.c000000000008p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.c0001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.cfffffffffff8p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.cffffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.e000000000008p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.e0001p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.efffffffffff8p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xb.effffp+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xf.a000000000008p+4): errno set to 0, expected 34 (ERANGE)
  Failure: tgamma_upward (-0xf.a0001p+4): errno set to 0, expected 34 (ERANGE)

• The math/test-ldouble failures is 640 failures related to the following API calls:

  iseqsig_downward
  iseqsig
  iseqsig_towardzero
  iseqsig_upward
  isgreater_downward
  isgreaterequal_downward
  isgreaterequal
  isgreaterequal_towardzero
  isgreaterequal_upward
  isgreater
  isgreater_towardzero
  isgreater_upward
  isless_downward
  islessequal_downward
  islessequal
  islessequal_towardzero
  islessequal_upward
  isless
  islessgreater_downward
  islessgreater
  islessgreater_towardzero
  islessgreater_upward
  isless_towardzero
  isless_upward
  isunordered_downward
  isunordered
  isunordered_towardzero
  isunordered_upward

• The math/test-fesetexcept-traps failure is:

  feenableexcept (FE_ALL_EXCEPT) not supported, cannot test

• The math/test-fexcept-traps failure is:

  feenableexcept (FE_ALL_EXCEPT) not supported, cannot test

• The math/test-nearbyint-except-2 failure is:

  enabling FE_INEXACT traps failed, cannot test

3.1.3. Alpha

Build system: qemu 2.8, GCC 6.2, binutils 2.25, Linux 4.9 (Richard Henderson)

FAIL: conform/POSIX2008/termios.h/conform
FAIL: conform/UNIX98/termios.h/conform
FAIL: conform/XOPEN2K/netdb.h/conform
FAIL: conform/XOPEN2K/termios.h/conform
FAIL: conform/XOPEN2K8/netdb.h/conform
FAIL: conform/XOPEN2K8/termios.h/conform
FAIL: conform/XPG3/termios.h/conform
FAIL: conform/XPG4/termios.h/conform
FAIL: crypt/badsalttest
FAIL: debug/tst-backtrace5
FAIL: debug/tst-backtrace6
FAIL: elf/tst-prelink-cmp
FAIL: io/tst-fts-lfs
FAIL: math/test-double
FAIL: math/test-double-finite
FAIL: math/test-fenv-return
FAIL: math/test-fexcept
FAIL: math/test-float
FAIL: math/test-float-finite
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
FAIL: nptl/tst-create-detached
FAIL: nptl/tst-eintr1
FAIL: nptl/tst-robust-fork
FAIL: nptl/tst-rwlock19
FAIL: stdio-common/check-installed-headers-cxx
FAIL: stdlib/tst-getrandom
FAIL: stdlib/tst-strtod-round
FAIL: string/tst-cmp
FAIL: wcsmbs/tst-wcstod-round

All of the math failures are due to lack of Inexact being raised; this is a well-known problem on Alpha with no easy solution.

3.1.4. ARM

Build system: (hard-float ABI) GCC 6.3.1 20170120, binutils 2.28.51.20170120, Linux 3.5.0 (Joseph Myers)

XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: io/ftwtest
UNSUPPORTED: io/tst-open-tmpfile
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
UNSUPPORTED: math/test-nearbyint-except-2
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
FAIL: stdio-common/bug22
UNSUPPORTED: stdlib/tst-getrandom
FAIL: sunrpc/bug20790
FAIL: timezone/tst-tzset
Summary of test results:
      5 FAIL
   2073 PASS
     11 UNSUPPORTED
      9 XFAIL
      2 XPASS

• nptl/tst-stack4 failure caused due to 17af5da98cd2c9ec958421ae2108f877e0945451.

Build system: Fedora Rawhide, gcc-7.0.1-0.3.fc26, binutils-2.27-15.fc26, linux 4.9.2-200.fc25.armv7hl (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
UNSUPPORTED: math/test-nearbyint-except-2
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
Summary of test results:
      5 FAIL
   2586 PASS
      9 UNSUPPORTED
     43 XFAIL
      2 XPASS

• The test*printers failures are all related to missing PExpect.

• The linknamespace failures are generic and related to --enable-nss-crypt.

• The math/test-fesetexcept-traps, math/test-fexcept-traps, and math/test-nearbyint-except-2 are all probably related to the same suite of failures for aarch64 (see above).

3.1.5. HPPA

3.1.6. IA64

Note: Building with gcc-4.8+ and --hash-style=gnu will create an ldso that segfaults immediately. See https://gcc.gnu.org/PR60465 for more details. You can workaround this in three ways:

• build glibc with >=gcc-5.4

• build glibc with <=gcc-4.7

• build glibc with -Wl,--hash-style=sysv

• build glibc with this hack

Build system: ia64 Dual-Core Intel(R) Itanium(R) Processor 9040, gcc (Gentoo 4.9.4 p1.0, pie-0.6.4), GNU assembler (Gentoo 2.25.1 p1.1), Linux headers 4.4, Linux 3.14.14-gentoo. (Mike Frysinger)

FAIL: debug/tst-backtrace4
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
UNSUPPORTED: io/tst-fallocate
UNSUPPORTED: io/tst-fallocate64
FAIL: io/tst-open-tmpfile
FAIL: math/test-double
FAIL: math/test-double-finite
FAIL: math/test-fenv-return
FAIL: math/test-fesetexcept
FAIL: math/test-fexcept
FAIL: math/test-float
FAIL: math/test-float-finite
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
FAIL: math/test-nearbyint-except
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-cancel21
FAIL: nptl/tst-cancelx21
FAIL: nptl/tst-eintr1
FAIL: nptl/tst-exec1
FAIL: nptl/tst-exec5
FAIL: posix/tst-spawn
FAIL: posix/tst-spawn-static
FAIL: posix/tst-spawn2
FAIL: posix/tst-spawn3
FAIL: stdio-common/check-installed-headers-cxx
FAIL: stdio-common/tst-long-dbl-fphex
UNSUPPORTED: stdlib/tst-getrandom
FAIL: stdlib/tst-makecontext3
FAIL: string/stratcliff
FAIL: string/test-rawmemchr
FAIL: sysvipc/test-sysvmsg
FAIL: sysvipc/test-sysvsem
FAIL: sysvipc/test-sysvshm

• tst-backtrace4 is known to fail on IA64 due to limited backtrace output; mailing list thread

• all the math/ tests probably match some open bugs on the topic, or need some baselines updated, or are limitations in the IA64 optimized libm
• tst-cpuclock2 seems to be flaky as it passes normally, but sometimes fails under load

• tst-makecontext3 fails as makecontext is known to be limited on IA64; bug 14250

3.1.7. M68K

Build system: ARAnyM 1.0.2, openSUSE Tumbleweed, gcc6-6.2.1+r243481, binutils-2.27, Linux 4.9.0 (Andreas Schwab)

FAIL: math/basic-test
FAIL: math/test-canonical-ldbl-96
FAIL: math/test-double
FAIL: math/test-double-finite
FAIL: math/test-fenv
FAIL: math/test-float
FAIL: math/test-float-finite
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
FAIL: math/test-snan

3.1.8. MicroBlaze

Feel free to add/replace with native results if you have them.

Build system: gcc (Gentoo 4.9.3 p1.2, pie-0.6.2), GNU assembler (Gentoo 2.25.1 p1.0), Linux headers 4.9 (Mike Frysinger)

Build-test only for microblaze-linux-gnu is OK.

3.1.9. MIPS

Build system: GCC 6.3.1 20170120, binutils 2.28.51.20170120, Linux 3.16 (LE hard-float), 3.14 (BE soft-float) (Joseph Myers)

Seen for all ABIs tested:

FAIL: io/tst-open-tmpfile
FAIL: nptl/test-cond-printers
FAIL: nptl/test-condattr-printers
FAIL: nptl/test-mutex-printers
FAIL: nptl/test-mutexattr-printers
FAIL: nptl/test-rwlock-printers
FAIL: nptl/test-rwlockattr-printers
FAIL: stdio-common/bug22
FAIL: stdio-common/test-vfprintf
FAIL: sunrpc/bug20790
FAIL: timezone/tst-tzset

Seen for o32, both BE soft-float and LE hard-float:

FAIL: nptl/tst-rwlock15

• nptl/tst-rwlock15 failure cause unknown.

3.1.10. Nios II

Build system: GCC 6.2.0, binutils 2.26.51, Linux headers 4.7 (Chung-Lin Tang)

FAIL: math/test-nearbyint-except
FAIL: nptl/test-cond-printers
FAIL: nptl/test-condattr-printers
FAIL: nptl/test-mutex-printers
FAIL: nptl/test-mutexattr-printers
FAIL: nptl/test-rwlock-printers
FAIL: nptl/test-rwlockattr-printers
FAIL: nptl/tst-cond12
FAIL: nss/tst-cancel-getpwuid_r
FAIL: string/tst-cmp
FAIL: sunrpc/bug20790
FAIL: support/tst-support_record_failure-2

• Test board does not have python immediately available, likely cause of nptl/*-printers fails
• nptl/tst-cond12 was known from 2.24.
• math/test-nearbyint-except failed due to no exception testing at all for Nios II.
• Rest unknown.

3.1.11. PowerPC (32-bit soft-float)

Build system: (soft-float) GCC 6.3.1 20170120, binutils 2.28.51.20170120, Linux 3.10.38 (Joseph Myers)

XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
FAIL: io/ftwtest
UNSUPPORTED: io/tst-open-tmpfile
FAIL: math/test-double
FAIL: math/test-float
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
FAIL: math/test-nearbyint-except-2
FAIL: nptl/test-cond-printers
FAIL: nptl/test-condattr-printers
FAIL: nptl/test-mutex-printers
FAIL: nptl/test-mutexattr-printers
FAIL: nptl/test-rwlock-printers
FAIL: nptl/test-rwlockattr-printers
FAIL: nptl/tst-rwlock19
FAIL: nptl/tst-stack4
FAIL: posix/tst-posix_fadvise64
FAIL: stdio-common/bug22
FAIL: stdio-common/test-vfprintf
UNSUPPORTED: stdlib/tst-getrandom
FAIL: sunrpc/bug20790
FAIL: timezone/tst-tzset
Summary of test results:
     21 FAIL
   2075 PASS
      2 UNSUPPORTED
      9 XFAIL
      2 XPASS

• elf/tst-tls-manydynamic failure is bug 20915.

• math/ tests fail because of IBM long double issues, in particular GCC bug 64811 (float and double failures are for nexttoward, so long double is involved there as well).

• nptl/tst-rwlock19 failure cause unknown.
• nptl/tst-stack4 failure caused due to 17af5da98cd2c9ec958421ae2108f877e0945451.

• posix/tst-posix_fadvise64 failure results from a kernel bug with 32-bit powerpc kernels.

3.1.12. PowerPC (32-bit hard-float)

Build system: Ubuntu 16.04. gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4). GNU assembler version 2.26.1 (powerpc-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.26.1 (Tulio Magno)

XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
FAIL: stdio-common/check-installed-headers-cxx
Summary of test results:
      6 FAIL
   2597 PASS
      8 UNSUPPORTED
     43 XFAIL
      2 XPASS

• elf/tst-tls-manydynamic and nptl/tst-stack4 started to fail after commit 17af5da98cd2c9ec958421ae2108f877e0945451.

3.1.13. PowerPC (64-bit hard-float)

Build system: Fedora 22. gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC). GNU assembler version 2.25 (ppc64-redhat-linux) using BFD version version 2.25-9.fc22. (Tulio Magno)

XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
Summary of test results:
      5 FAIL
   2598 PASS
      8 UNSUPPORTED
     43 XFAIL
      2 XPASS

• elf/tst-tls-manydynamic and nptl/tst-stack4 started to fail after commit 17af5da98cd2c9ec958421ae2108f877e0945451.

Build System: RHEL7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), GNU ld version 2.27-1.base.el7, linux 3.10.0-549.el7.ppc64 (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: io/tst-open-tmpfile
FAIL: malloc/tst-malloc-usable
FAIL: malloc/tst-malloc-usable-static
FAIL: malloc/tst-malloc-usable-static-tunables
FAIL: malloc/tst-malloc-usable-tunables
FAIL: math/test-double
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-float
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
UNSUPPORTED: nptl/tst-thread_local1
UNSUPPORTED: stdlib/tst-getrandom
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
     16 FAIL
   2584 PASS
     13 UNSUPPORTED
     43 XFAIL
      2 XPASS

3.1.14. PowerPC64LE (64-bit hard-float)

Build system: Ubuntu 16.04. gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4). GNU assembler version 2.26.1 (powerpc64le-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.26.1 (Tulio Magno)

XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
FAIL: stdio-common/check-installed-headers-cxx
Summary of test results:
      6 FAIL
   2597 PASS
      8 UNSUPPORTED
     43 XFAIL
      2 XPASS

• elf/tst-tls-manydynamic and nptl/tst-stack4 started to fail after commit 17af5da98cd2c9ec958421ae2108f877e0945451.

Build system: RHEL7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), GNU ld version 2.27-1.base.el7, linux 3.10.0-549.el7.ppc64le (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-manydynamic
UNSUPPORTED: io/tst-open-tmpfile
FAIL: math/test-double
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
FAIL: math/test-float
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-stack4
UNSUPPORTED: nptl/tst-thread_local1
UNSUPPORTED: stdlib/tst-getrandom
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
     12 FAIL
   2588 PASS
     13 UNSUPPORTED
     43 XFAIL
      2 XPASS

3.1.15. S/390 (32-bit)

Build system: gcc version 5.3.0, GNU Binutils version 2.25, Linux 4.2 (Stefan Liebler)

FAIL: math/test-double
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ildouble
FAIL: nptl/tst-setuid2
FAIL: string/tst-strcoll-overflow

See test fail descriptions for S/390 (64bit).

3.1.16. S/390 (64-bit)

Build system: gcc version 5.3.0, GNU Binutils version 2.25, Linux 4.2 (Stefan Liebler)

FAIL: nptl/tst-cancelx4
FAIL: nptl/tst-cancelx5
FAIL: nptl/tst-cancelx16
FAIL: math/test-double
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ildouble
FAIL: nptl/tst-setuid2
FAIL: string/tst-strcoll-overflow

• nptl/tst-cancelx4|5 fails due to "cleanup handler not called for 'sigwait'".

GCCs >= 4.9 and <= 5.3 saves r15 in a floating-point register in do_sigwait() and emits false cfi information. If a thread is cancelled while sigwait blocks, unwinding has already stopped before the function with the cleanup-handler. See gcc commits "S/390: Fix cfi for GPR 2 FPR saves" in gcc 4.9 branch, gcc 5 branch and gcc 6 branch. This occures if built with -O2. With -O3, r15 is not saved in fpr here and the test passes.

• nptl/tst-cancelx16 fails due to not called cleanup handler around lockf - same issue as above.

• math/test-double, math/test-idouble are failing due to pow function if first argument is one and second argument is a sNaN value. This is due to gcc Bug 78857 - S390: Do not use load-and-test floating-point instruction to compare against 0.0 as SNaN is converted to QNaN.

• math/test-ifloat, math/test-idouble, math/test-ildouble are failing due to cases where setpayloadsig shall return sNaN. The setpayloadsig function itself works as expected. The same gcc bug as with pow results to a usage of the load-and-test instruction within the math-tests which leads to expecting qNaN instead of sNaN.
• nptl/tst-setuid2 passes with root privileges.
• string/tst-strcoll-overflow fails because the invocation of strcoll successfully returns before the expected timeout. The old test framework expected either a timeout or a successfully return. The new test framework expects only the timeout.

Build System: RHEL7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), GNU ld version 2.27-1.base.el7, linux 3.10.0-549.el7.s390x (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
UNSUPPORTED: io/tst-open-tmpfile
FAIL: malloc/tst-malloc-usable
FAIL: malloc/tst-malloc-usable-static
FAIL: malloc/tst-malloc-usable-static-tunables
FAIL: malloc/tst-malloc-usable-tunables
FAIL: math/test-double
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-ildouble
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-create-detached
UNSUPPORTED: nptl/tst-thread_local1
UNSUPPORTED: stdlib/tst-getrandom
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
     14 FAIL
   2576 PASS
     11 UNSUPPORTED
     45 XFAIL

• The namespace failures are related to --enable-nss-crypt.

• The system compiler C++ support doesn't include thread local so the thread local tests are unsupported.

• The *printers tests are unsupported because of gdb < 7.8.

• Failure in tst-create-detached is just a timeout. Test runs successfully when timeout is extended.
• The io/tst-open-tmpfile test is unsupported because of missing kernel features.
• All 4 malloc_usable tests fail with:

  malloc_usable_size: expected 7 but got 24

• The test-double failures are pow + sNaN related (maybe compiler issues):

  testing double (without inline functions)
  Failure: Test: pow (1, sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow (1, -sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_downward (1, sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_downward (1, -sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_towardzero (1, sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_towardzero (1, -sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_upward (1, sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  Failure: Test: pow_upward (1, -sNaN)
  Result:
   is:          1.0000000000000000e+00   0x1.0000000000000p+0
   should be:  qNaN
  
  Test suite completed:
    203782 test cases plus 180154 tests for exception flags and
      180154 tests for errno executed.
    8 errors occurred.

• The test-ifloat failure is:

  testing float (inline functions)
  Failure: Test: setpayloadsig (0x1p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig (0x2p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig (0x3fffffp0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_downward (0x1p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_downward (0x2p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_downward (0x3fffffp0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_towardzero (0x1p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_towardzero (0x2p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_towardzero (0x3fffffp0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_upward (0x1p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_upward (0x2p0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  Failure: Test: setpayloadsig_upward (0x3fffffp0) extra output 1
  Result:
   is:         sNaN
   should be:  qNaN
  
  Test suite completed:
    133170 test cases plus 0 tests for exception flags and
      0 tests for errno executed.
    12 errors occurred.

  and similarly for test-idouble and test-ildouble.

}}}

3.1.17. SH

Build system: gcc-6_6.2.0-5, binutils 2.27.51.20161108, Linux tirpitz 3.16.7-ckt7 #8 PREEMPT (John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>)

FAIL: elf/check-localplt
FAIL: elf/tst-tls1
FAIL: elf/tst-tls1-static
FAIL: elf/tst-tls2
FAIL: elf/tst-tls2-static
FAIL: math/basic-test
FAIL: math/test-double
FAIL: math/test-double-finite
FAIL: math/test-float
FAIL: math/test-float-finite
FAIL: math/test-idouble
FAIL: math/test-ifloat
FAIL: math/test-nearbyint-except
XPASS: nptl/tst-cancel24-static
FAIL: nptl/tst-stack4
XPASS: rt/tst-cpuclock2
XPASS: rt/tst-cputimer1
XPASS: rt/tst-timer
FAIL: setjmp/tst-setjmp-fp
FAIL: stdio-common/bug22
FAIL: stdlib/tst-makecontext
FAIL: stdlib/tst-tininess
FAIL: string/inl-tester
FAIL: string/tester

• check-localplt fail with

FAIL: elf/check-localplt
original exit status 1
Extra PLT reference: libc.so: _Unwind_Find_FDE
Extra PLT reference: libc.so: _exit
Extra PLT reference: libc.so: __errno_location

• The tls tests (tst-tls{1,2}{-static} fails with:

FAIL: elf/tst-tls1
original exit status 1
set bar to 1 (LE)
get sum of foo and bar (IE)Didn't expect signal from child: got `Segmentation fault'
----------
----------
FAIL: elf/tst-tls1-static
original exit status 1
set bar to 1 (LE)
get sum of foo and bar (IE)Didn't expect signal from child: got `Segmentation fault'
----------
----------
FAIL: elf/tst-tls2
original exit status 1
set bar to 1 (LE)
get sum of foo and bar (IE)Didn't expect signal from child: got `Segmentation fault'
----------
----------
FAIL: elf/tst-tls2-static
original exit status 1
set bar to 1 (LE)
get sum of foo and bar (IE)Didn't expect signal from child: got `Segmentation fault'

• The math tests are mainly due wrong signaling handling where the output expects a qNaN and got a sNaN and missing ULP update.
• nptl/tst-stack4 failure is mostly likely caused due to 17af5da98cd2c9ec958421ae2108f877e0945451

FAIL: nptl/tst-stack4
original exit status 127

• setjmp/tst-setjmp-fp fails with:

FAIL: setjmp/tst-setjmp-fp
original exit status 1
FAIL: longjmp changed rounding mode
FAIL: longjmp changed exceptions

• stdio-common/bug22 fails with:

original exit status 1
ret = -1
ret = -1
ret = -1
ret = -1

• stdlib/tst-makecontext fails with:

original exit status 1
Didn't expect signal from child: got `Aborted'

• stdlib/tst-tininess fails with:

original exit status 1
tininess.h says after rounding, but detected before rounding

• string/inl-tester fails with

original exit status 1
strcmp flunked test 69
strcmp flunked test 85
strcmp flunked test 101
strcmp flunked test 117
strcmp flunked test 133
strcmp flunked test 149
strcmp flunked test 165
[many more for strcmp]

• string/tester fails with:

original exit status 1
strcmp flunked test 69
strcmp flunked test 85
strcmp flunked test 101
strcmp flunked test 117
strcmp flunked test 133
[many more for strcmp]

3.1.18. SPARC (32-bit)

Build system: UltraSparc T5 (Niagara5), gcc 6.3.0, binutils 2.27.90.20170118, and Linux 4.9.2-2. (Adhemerval Zanella). Using --host=sparcv9-linux-gnu

FAIL: intl/tst-gettext
FAIL: libio/tst-widetext
FAIL: math/test-double
FAIL: math/test-double-finite
FAIL: math/test-float
FAIL: math/test-idouble
FAIL: math/test-ifloat
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: stdlib/tst-makecontext

• intl/tst-gettext fails with

est `gettext' with LANGUAGE set
test `gettext' with LANGUAGE set
test `dgettext' with LANGUAGE set
test `gettext' with LC_ALL set
test `gettext' with LC_ALL deciding
test `dgettext' with LC_ALL deciding
test `gettext' with LC_MESSAGES set
test `gettext' with LC_MESSAGES deciding
test `dgettext' with LC_MESSAGES deciding
test `dcgettext' with category == LC_MESSAGES
test `dcgettext' with LANGUAGE == LC_TIME
test `dcgettext' with LANGUAGE == LC_NUMERIC
tst-gettext.c:214: setlocale (LC_ALL, ""): No such file or directory
test `gettext' with LANG set
test `gettext' with LANG set
test `dgettext' with LANG set

• libio/tst-widetext fails with:

locale used: de_DE.UTF-8

Timed out: killed the child process

• math/test-{float,double,ldouble} are due some qNaN/sNaN expectation in fmax/fmin (sparc32 uses assembly implementation) and also for some lrint issues.
• stdlib/tst-makecontext fails with

tst-makecontext: tst-makecontext.c:73: cf: Assertion `arg.cnt != -1 && arg.cnt < 100' failed.
Didn't expect signal from child: got `Aborted'

3.1.19. SPARC (64-bit)

Build system: UltraSparc T5 (Niagara5), gcc 6.3.0, binutils 2.27.90.20170118, and Linux 4.9.2-2. (Adhemerval Zanella)

FAIL: conform/ISO/setjmp.h/conform
FAIL: conform/ISO11/setjmp.h/conform
FAIL: conform/ISO99/setjmp.h/conform
FAIL: conform/POSIX/pthread.h/conform
FAIL: conform/POSIX/setjmp.h/conform
FAIL: conform/POSIX2008/pthread.h/conform
FAIL: conform/POSIX2008/setjmp.h/conform
FAIL: conform/UNIX98/pthread.h/conform
FAIL: conform/UNIX98/setjmp.h/conform
FAIL: conform/XOPEN2K/pthread.h/conform
FAIL: conform/XOPEN2K/setjmp.h/conform
FAIL: conform/XOPEN2K8/pthread.h/conform
FAIL: conform/XOPEN2K8/setjmp.h/conform
FAIL: conform/XPG3/setjmp.h/conform
FAIL: conform/XPG4/setjmp.h/conform
FAIL: intl/tst-gettext
FAIL: math/test-double
FAIL: math/test-float
FAIL: math/test-idouble
FAIL: math/test-ifloat
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers

• conform tests are due the sysdeps/unix/sysv/linux/sparc/bits/setjmp.h jmp_buf definitions.

• math/test-{float,double,ldouble} are due some qNaN/sNaN expectation in fmax/fmin (sparc64 uses assembly implementation - sysdeps/sparc/sparc64/fpu/s_f{max,min}.S)

3.1.20. TILE-Gx (64-bit and 32-bit)

Build system: TILE-Gx72 running CentOS 6.3, with gcc 4.8.2, binutils 2.21, and Linux 3.10.55. (Chris Metcalf)

FAIL: nptl/tst-cancel24
FAIL: nptl/tst-cancel24-static
FAIL: nptl/tst-cancelx16
FAIL: nptl/tst-cancelx17
FAIL: nptl/tst-cancelx18
FAIL: nptl/tst-cancelx20
FAIL: nptl/tst-cancelx21
FAIL: nptl/tst-cancelx4
FAIL: nptl/tst-cancelx5
FAIL: nptl/tst-cleanupx0
FAIL: nptl/tst-cleanupx1
FAIL: nptl/tst-cleanupx3
FAIL: nptl/tst-cleanupx4
FAIL: nptl/tst-oncex3
FAIL: nptl/tst-oncex4
FAIL: rt/tst-mqueue8x

The failures above are due to bug 14266

FAIL: nptl/tst-cancel17

This is a segfault, cause unknown.

FAIL: nptl/tst-cancel19

The failure above occurs only on tilegx32: hang, cause unknown.

FAIL: stdlib/tst-setcontext2

This is due to a stack frame variable allocation bug fixed in gcc 5 and newer.

3.1.21. TILEPro

Cross "make" on x86_64 successful with binutils-2.23.1, linux-3.9.2 headers, and gcc 4.7.3. "make check" was not run. (Chris Metcalf)

3.1.22. x86 (32-bit, Linux)

Build system: RHEL7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), GNU ld version 2.27-1.base.el7, 3.10.0-549.el7.x86_64 (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
UNSUPPORTED: io/tst-open-tmpfile
FAIL: math/test-ildouble
FAIL: math/test-ldouble
FAIL: math/test-ldouble-finite
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
UNSUPPORTED: nptl/tst-thread_local1
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
      8 FAIL
   2600 PASS
     10 UNSUPPORTED
     43 XFAIL
      2 XPASS

• The test-ildouble failures are:

  testing long double (inline functions)
  Failure: Test: acosh_upward (0x1.07c956p+0)
  Result:
   is:          2.46020094112509415887e-01   0xf.becb1097cfff0c80p-6
   should be:   2.46020094112509415819e-01   0xf.becb1097cfff0c30p-6
   difference:  6.77626357803440271255e-20   0xa.0000000000000000p-67
   ulp       :  5.0000
   max.ulp   :  4.0000
  Maximal error of `acosh_upward'
   is      : 5 ulp
   accepted: 4 ulp
  Failure: Test: gamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `gamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: lgamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `lgamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: Real part of: clog10_upward (-0x4.74556ec92eb48p-4 + 0x1.1e7aa1d936f6fp+0 i)
  Result:
   is:          6.18931597824831541829e-02   0xf.d83ae91ca35b3d30p-8
   should be:   6.18931597824831541558e-02   0xf.d83ae91ca35b3cb0p-8
   difference:  2.71050543121376108502e-20   0x8.0000000000000000p-68
   ulp       :  8.0000
   max.ulp   :  7.0000
  Maximal error of real part of: clog10_upward
   is      : 8 ulp
   accepted: 7 ulp
  Maximal error of imaginary part of: clog10_upward
   is      : 2 ulp
   accepted: 3 ulp
  
  Test suite completed:
    271048 test cases plus 0 tests for exception flags and
      0 tests for errno executed.
    8 errors occurred.

  Should probably update ULPs.
• Similarly for test-ldouble

  testing long double (without inline functions)
  Failure: Test: gamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `gamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: lgamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `lgamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: Real part of: clog10_upward (-0x4.74556ec92eb48p-4 + 0x1.1e7aa1d936f6fp+0 i)
  Result:
   is:          6.18931597824831541829e-02   0xf.d83ae91ca35b3d30p-8
   should be:   6.18931597824831541558e-02   0xf.d83ae91ca35b3cb0p-8
   difference:  2.71050543121376108502e-20   0x8.0000000000000000p-68
   ulp       :  8.0000
   max.ulp   :  7.0000
  Maximal error of real part of: clog10_upward
   is      : 8 ulp
   accepted: 7 ulp
  Maximal error of imaginary part of: clog10_upward
   is      : 2 ulp
   accepted: 3 ulp
  
  Test suite completed:
    272036 test cases plus 241830 tests for exception flags and
      241830 tests for errno executed.
    6 errors occurred.

• And test-ldouble-finite:

  testing long double (finite-math-only)
  Failure: Test: gamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `gamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: lgamma_upward (-0x2.f00004p+4)
  Result:
   is:         -1.24326088114809082584e+02  -0xf.8a6f5057970487b0p+3
   should be:  -1.24326088114809082542e+02  -0xf.8a6f505797048750p+3
   difference:  4.16333634234433702659e-17   0xc.0000000000000000p-58
   ulp       :  6.0000
   max.ulp   :  5.0000
  Maximal error of `lgamma_upward'
   is      : 6 ulp
   accepted: 5 ulp
  Failure: Test: Real part of: clog10_upward (-0x4.74556ec92eb48p-4 + 0x1.1e7aa1d936f6fp+0 i)
  Result:
   is:          6.18931597824831541829e-02   0xf.d83ae91ca35b3d30p-8
   should be:   6.18931597824831541558e-02   0xf.d83ae91ca35b3cb0p-8
   difference:  2.71050543121376108502e-20   0x8.0000000000000000p-68
   ulp       :  8.0000
   max.ulp   :  7.0000
  Maximal error of real part of: clog10_upward
   is      : 8 ulp
   accepted: 7 ulp
  Maximal error of imaginary part of: clog10_upward
   is      : 2 ulp
   accepted: 3 ulp
  
  Test suite completed:
    248732 test cases plus 219522 tests for exception flags and
      0 tests for errno executed.
    6 errors occurred.

3.1.23. x86_64 (64-bit, Linux)

Build system: RHEL7, gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC), binutils version 2.27-1.base.el7, linux 3.10.0-549.el7.x86_64 (Carlos O'Donell)

FAIL: conform/UNIX98/unistd.h/linknamespace
FAIL: conform/XOPEN2K/unistd.h/linknamespace
FAIL: conform/XOPEN2K8/unistd.h/linknamespace
FAIL: conform/XPG3/unistd.h/linknamespace
FAIL: conform/XPG4/unistd.h/linknamespace
UNSUPPORTED: elf/tst-audit10
UNSUPPORTED: elf/tst-audit4
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
UNSUPPORTED: io/tst-open-tmpfile
UNSUPPORTED: math/test-double-libmvec-alias-avx
UNSUPPORTED: math/test-double-libmvec-alias-avx-main
UNSUPPORTED: math/test-double-libmvec-alias-avx2
UNSUPPORTED: math/test-double-libmvec-alias-avx2-main
UNSUPPORTED: math/test-double-libmvec-sincos-avx
UNSUPPORTED: math/test-double-libmvec-sincos-avx2
UNSUPPORTED: math/test-float-libmvec-alias-avx
UNSUPPORTED: math/test-float-libmvec-alias-avx-main
UNSUPPORTED: math/test-float-libmvec-alias-avx2
UNSUPPORTED: math/test-float-libmvec-alias-avx2-main
UNSUPPORTED: math/test-float-libmvec-sincosf-avx
UNSUPPORTED: math/test-float-libmvec-sincosf-avx2
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-robust-fork
UNSUPPORTED: nptl/tst-thread_local1
UNSUPPORTED: stdlib/tst-quick_exit
UNSUPPORTED: stdlib/tst-thread-quick_exit
Summary of test results:
      6 FAIL
   2626 PASS
     24 UNSUPPORTED
     43 XFAIL
      2 XPASS

• The namespace issues are related to --enable-nss-crypt configuration.

• The lack of AVX and AVX2 on this hardware means that tst-audit10, tst-audit4 and all the *avx* and *avx2* tests are unsupported.
• The io/tst-open-tmpfile test is unsupported because of a lack of kernel support.
• The C++ support in RHEL7 lacks thread local so the related thread local tests are disabled (see aarch64 results for an example).
• The nptl/tst-robust-fork test hangs and needs investigation.

3.1.24. x86_64 (x32, Linux)

Build system: gcc version 6.3.1, GNU Binutils version 2.28.51, Linux 4.9.6 (H.J. Lu)

FAIL: elf/tst-leaks1-mem
FAIL: nptl/tst-setuid2

* elf/tst-leaks1-mem failure is due to bug 14681.

3.1.25. x86 (32-bit, Hurd)

3.2. Packaging Changes

3.2.1. sys/types.h and sys/sysmacros.h

The inclusion of sys/sysmacros.h by sys/types.h is deprecated. Using the macros major, minor, or makedev without having directly included sys/sysmacros.h will trigger compiler warnings.

These macros are not part of POSIX nor XSI, and their names frequently collide with user code; see for instance glibc bug 19239 and Red Hat bug 130601. stdlib.h includes sys/types.h under _GNU_SOURCE, and C++ code presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the problem.

Most programs do not need these macros. Programs that wish to use their names for their own purposes should #undef all three after including all system headers:

   1 #include <sys/types.h>
   2 #include <stdio.h>
   3 /* ... more headers ... */
   4 
   5 /* Some systems provide macros 'major', 'minor', 'makedev' in <sys/types.h>, which we don't want.  */
   6 #undef major
   7 #undef minor
   8 #undef makedev
   9 

Programs that do need these macros should arrange to get them either from sys/types.h or sys/sysmacros.h, because on BSD-derived systems, sys/sysmacros.h does not exist:

   1 #include <sys/types.h>
   2 #ifdef __GLIBC__
   3 #include <sys/sysmacros.h>
   4 #endif
   5 

In order to decide when sys/types.h can stop providing these macros altogether, we would appreciate reports of software affected by this deprecation.

Applications wishing to be compatible with older pre-2.25 glibc's may safely include sys/sysmacros.h starting with glibc 2.0 from 1997, when the header first appeared.

3.2.2. res_gethostbyaddr etc. compat symbols

glibc 2.25 turns res_gethostbyaddr, res_gethostbyname and other functions returning struct hostent results into compatibility symbols. These functions have not been included in the installed <resolv.h> header for a very long time, so applications should not access them. There implementations are also not updated for new DNS developments. There seem to be bogus autoconf checks for these functions (in ekiga, for example). If applications use these functions to avoid endless loops in host name lookups, they need to use __nss_configure_lookup instead.