r277722 - in /branches/gcc-7-branch/gcc: Change...

[iains@gcc.gnu.org]

Author: iains
Date: Fri Nov  1 20:33:39 2019
New Revision: 277722

URL: https://gcc.gnu.org/viewcvs?rev=277722&root=gcc&view=rev
Log:
[Darwin] The need for FDE symbols is dependent on linker used, not OS rev.

For very old toolchains, the compiler generated extra symbols that mark the
start of each FDE. We no longer need this (since xcode 3 era) - so, for
compatibility with newer linkers, omit this when it is not required.

Since we have detection of the linker version, we can use that directly to
determine if support is needed.

gcc/

2019-11-01  Iain Sandoe  <iain@sandoe.co.uk>

	Backport from mainline
	2019-06-18  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (darwin_emit_unwind_label): New default to false.
	(darwin_override_options): Set darwin_emit_unwind_label as needed.


Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/darwin.c