fuchsia: Look for the toolchain and SDK in per-build-host directories
I like to share a single Crashpad checkout between my non-virtual
machine and some virtual machines. Downloaded toolchains, which vary by
build host configuration, must go in paths named for the build host.
(Chromium doesn’t do this, and it bugs me.)
Rather than looking for the Fuchsia toolchain in
third_party/fuchsia/clang, this looks for it in
third_party/fuchsia/clang/{mac,linux}-amd64.
The Fuchsia SDK is only published on cipd for linux-amd64, but the
sysroot that it contains ought to be perfectly functional on any
suitably-equipped build host, so this also uses that package
unconditionally.
Bug: crashpad:196
Change-Id: Ibd0660eb7ef82a2e6b7e6adf113edb80fabe6036
Reviewed-on: https://chromium-review.googlesource.com/794539
Reviewed-by: Scott Graham <scottmg@chromium.org>
This is mini_chromium, a small collection of useful low-level (“base”) routines from the Chromium open-source project. Chromium is large, sprawling, full of dependencies, and a web browser. mini_chromium is small, self-contained, and a library. mini_chromium is especially useful as a dependency of other code that wishes to use Chromium’s base routines. By using mini_chromium, other projects’ code can function in a standalone environment outside of Chromium without having to treat all of Chromium as a dependency. When building as part of Chromium, those projects’ code can use Chromium’s own (non-mini_chromium) base implementation.
Code provided in mini_chromium provides the same interface as the equivalent code in Chromium.
While it’s a goal of mini_chromium to maintain interface compatibility with Chromium’s base library for the interfaces it does implement, there’s no requirement that it use the same implementations as Chromium’s base library. Many of the implementations used in mini_chromium are identical to Chromium’s, but many others have been modified to eliminate dependencies that are not desired in mini_chromium, and a few are completely distinct from Chromium’s altogether. Additionally, when mini_chromium provides an interface in the form of a file or class present in Chromium, it’s not bound to provide all functions, methods, or types that the Chromium equivalent does. The differences noted above notwithstanding, the interfaces exposed by mini_chromium’s base are and must remain a strict subset of Chromium’s.
Crashpad is the chief consumer of mini_chromium.
Mark Mentovai
mark@chromium.org