gcc-as-needed.diff patch broke mpx support in GCC

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Hi Matthias,

Is there any chance that the fix could be backported to gcc-5+Ubuntu?

This bug was fixed in the package binutils - 2.27.51.20161212-1ubuntu1

---------------
binutils (2.27.51.20161212-1ubuntu1) zesty; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

 -- Matthias Klose <email address hidden> Mon, 12 Dec 2016 14:07:30 +0100

This bug was fixed in the package gcc-6 - 6.2.1-7ubuntu1

---------------
gcc-6 (6.2.1-7ubuntu1) zesty; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-6 (6.2.1-7) unstable; urgency=medium

  * GCC 6.3.0 release candidate.
  * Update to SVN 20161215 (r243686, 6.2.1) from the gcc-6-branch.
    - Fix PR libstdc++/78465, PR c++/78761, PR c++/78252, PR target/59874,
      PR target/78796, PR tree-optimization/77673, PR target/72717 (PPC),
      PR rtl-optimization/71496, PR c++/78701.
  * Drop build dependency on g++-5.
  * Fix PR c++/78774, proposed for the gcc-6-branch.
  * Apply patches for zlib security issues CVE-2016-9840, CVE-2016-9841,
    CVE-2016-9842, CVE-2016-9843.
  * Ignore dpkg's pie specs when pie is not enabled. Addresses: #848129.

 -- Matthias Klose <email address hidden> Thu, 15 Dec 2016 22:50:24 +0100

Hello Alexander, or anyone else affected,

Accepted binutils into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/binutils/2.26.1-1ubuntu1~16.04.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Hello Alexander, or anyone else affected,

Accepted binutils into yakkety-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/binutils/2.27-8ubuntu2.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

the binutils xenial and yakkety updates have the new option available in gold.

This bug was fixed in the package gcc-5 - 5.4.1-8ubuntu1

---------------
gcc-5 (5.4.1-8ubuntu1) zesty; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-5 (5.4.1-8) unstable; urgency=medium

  * Update to SVN 20170304 (r245892, 5.4.1) from the gcc-5-branch.
    - Fix PR libstdc++/79789, PR target/79514 (x86), PR target/79544 (PPC),
      PR lto/79579, PR target/79749 (sparc).
  * Build-depend on gnat-5 again.

 -- Matthias Klose <email address hidden> Sat, 04 Mar 2017 13:16:08 +0100

I'm a bit confused as to how the verification was done given that step 3 says the following:

"3. Install binutils and gcc-5 from -proposed."

I don't see a gcc-5 in -proposed for xenial or yakkety. Could somebody explain the discrepancy?

the binutils part was checked by looking at gold to accept the new options.

As part of a recent change in the Stable Release Update verification policy we would like to inform that for a bug to be considered verified for a given release a verification-done-$RELEASE tag needs to be added to the bug where $RELEASE is the name of the series the package that was tested (e.g. verification-done-xenial). Please note that the global 'verification-done' tag can no longer be used for this purpose.

Thank you!

The verification of the Stable Release Update for binutils has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package binutils - 2.26.1-1ubuntu1~16.04.4

---------------
binutils (2.26.1-1ubuntu1~16.04.4) xenial-proposed; urgency=medium

  * SRU
  * POWER backports (LP: #1655181)
    - Don't treat .opd section specially when ELFv2.
    - Fix PowerPC64 ELFv1 undefined weak functions.
    - Modify POWER9 support to match final ISA 3.0 documentation.
  * Fix PR gold/18989. Implement --push-state/--pop-state. LP: #1623418.

 -- Matthias Klose <email address hidden> Fri, 10 Feb 2017 02:30:30 +0100

Hello Alexander, or anyone else affected,

Accepted gcc-5 into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gcc-5/5.4.0-6ubuntu1~16.04.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

$ gcc --version
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ gcc -fcheck-pointer-bounds -mmpx foo.c
$ ldd a.out
        linux-vdso.so.1 => (0x00007fff289d1000)
        libmpx.so.0 => /usr/lib/x86_64-linux-gnu/libmpx.so.0 (0x00007fce0497a000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fce045b0000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fce04393000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fce04b81000)

This bug was fixed in the package gcc-5 - 5.4.0-6ubuntu1~16.04.5

---------------
gcc-5 (5.4.0-6ubuntu1~16.04.5) xenial-proposed; urgency=medium

  * SRU
  * Fix PR target/77267 (x86), taken from the trunk. LP: #1623418.
  * Fix hangs w/ asan binaries on arm64 (Dann Frazier). LP: #1709727.
  * Linaro branch only: Fix PR target/79041, aarch64 backend emitting
    R_AARCH64_ADR_PREL_PG_HI21 relocation despite -mpc-relative-literal-loads
    option being used (Dan Frazier). LP: #1695093.

 -- Matthias Klose <email address hidden> Wed, 23 Aug 2017 11:35:00 +0200