tree 74f5e0349ef7dbd8ff7688407b323b7155916824
parent 5884453ad865ffb4cea3405cbf81dcd1905967c6
author Nico Weber <thakis@chromium.org> 1613658647 -0500
committer Copybara-Service <copybara-worker@google.com> 1613734352 -0800

sysroot.py: add support for darwin

This is a tiny bit messy because compiler-rt needs different sysroots for
macOS, iOS, etc. We want sysroot.py to create something that is a hermetic
representation of all build deps, so it needs to create a directory that
contains all needed SDKs, and these subdirectories are then passed to
cmake which passes each of these _subdirectories_ as different -isysroot
flags while building the runtime libraries.

Differential Revision: https://reviews.llvm.org/D96958

GitOrigin-RevId: 0ec448194e2928a3d1dc2eceeb764c6e19bcec3e