tree 4257a2c773e6288a8638f105a4ed21ccc45ff4ec
parent 129dec3ed0e1fc07f75a4322014d770cfd642f4d
author Rahul Chaudhry <rahulchaudhry@google.com> 1477092846 -0700
committer Rahul Chaudhry <rahulchaudhry@google.com> 1477092846 -0700

gold: make icf respect section alignment requirements.

Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=628795
The upstream bug is https://sourceware.org/bugzilla/show_bug.cgi?id=17704

This patch is backported from upstream -

    commit ac423761af22f7858a1413cda5df3e1d5e88d4e4
    Author: Gergely Nagy <ngg@tresorit.com>
    Date:   Fri Oct 21 11:08:20 2016 -0700

        Fix PR 17704.

        This fix keeps the section with the highest alignment when folding sections with ICF.

            PR gold/17704
            * icf.cc (match_sections): Add new parameter section_addraligns.
            Check section alignment and keep the section with the strictest
            alignment.
            (find_identical_sections): New local variable section_addraligns.
            Store each section's alignment.
            * testsuite/pr17704a_test.s: New file.
            * testsuite/Makefile.am (pr17704a_test): New test.
            * testsuite/Makefile.in: Regenerate.