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(merge: de366b5 77922b8)
Auto merge of #31684 - tmiasko:alternate-stack, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 18 Feb 2016 23:23:22 +0000 (23:23 +0000)
committerbors <bors@rust-lang.org>
Thu, 18 Feb 2016 23:23:22 +0000 (23:23 +0000)
commit8842e28be8857e8e37591e2dec469d6720c278cb
tree0993e9663e68ab676419c48fb4502d633f640788tree | snapshot
parentde366b5218974e79c4961e26f063e5fb51039745commit | diff
parent77922b817e012989ee8b0f371242e078e58b9ca1commit | diff
Auto merge of #31684 - tmiasko:alternate-stack, r=alexcrichton

Remove alternate stack with sigaltstack before unmaping it.

Also reuse existing signal stack if already set, this is especially
useful when working with sanitizers that configure alternate stack
themselves.

This change depends on SS_DISABLE recently introduced in libc crate and updates
this git submodule accordingly.
Empowering everyone to build reliable and efficient software.