[Bug bootstrap/81033] [8 Regression] there are cases where ld64 is not able to determine correct atom boundaries from the output GCC currently produces

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81033

--- Comment #48 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 22:56:02 2018
New Revision: 265576

URL: https://gcc.gnu.org/viewcvs?rev=265576&root=gcc&view=rev
Log:
fix PR81033 and associated.

2018-10-28  Iain Sandoe  <i...@sandoe.co.uk>

        Backport from mainline
        2018-08-22  Iain Sandoe  <i...@sandoe.co.uk>

        PR bootstrap/81033
        PR target/81733
        PR target/52795
        * gcc/dwarf2out.c (FUNC_SECOND_SECT_LABEL): New.
        (dwarf2out_switch_text_section): Generate a local label for the second
        function sub-section and apply it as the second FDE start label.
        * gcc/final.c (final_scan_insn_1): Emit second FDE label after the
second
        sub-section start.


Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/dwarf2out.c
    branches/gcc-8-branch/gcc/final.c