Package "gcc-4.8"

 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=
       with attribute support, -mindirect-branch-register, and
       -mfunction-return= with
       attribute support. Thanks to H.J. Lu.