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gcc-4.8 (4.8.4-2ubuntu1~14.04.4) trusty-security; urgency=medium

  * Add retpoline support for x86 via adding -mindirect-branch=,
    -mindirect-branch-register, and -mfunction-return= support
    (LP: #1749261)
    - 0001-i386-Move-struct-ix86_frame-to-machine_function.diff,
      0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.diff,
      0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.diff,
      0004-x86-Add-mindirect-branch.diff,
      0005-x86-Add-mfunction-return.diff,
      0006-x86-Add-mindirect-branch-register.diff,
      0007-x86-Add-V-register-operand-modifier.diff,
      0008-x86-Disallow-mindirect-branch-mfunction-return-with-.diff,
      0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.diff:
      implement -mindirect-branch=<keep|thunk|thunk-inline|thunk-extern>
      with attribute support, -mindirect-branch-register, and
      -mfunction-return=<thunk|thunk-inline|thunk-extern> with
      attribute support. Thanks to H.J. Lu.

 -- Steve Beattie <email address hidden>  Tue, 13 Feb 2018 10:19:48 -0800

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