Building for x86_64-unknown-linux-musl currently results in an executable lacking debug information for musl libc itself. If you request a backtrace in GDB while control flow is within musl – including sycalls made by musl – the result looks like:
#0 0x0000000000434b46 in __cp_end ()
#1 0x0000000000432dbd in __syscall_cp_c ()
#2 0x0000000000000000 in ?? ()
i.e. not very helpful. Adding --enable-debug resolves this, and --enable-optimize re-enables optimisations which default to off given the previous flag.
Ideally I'd like to soon enable sccache for rustbuild itself and some of the
stage0 tools, but for that to work we'll need some better Rust support than the
pretty old version we were previously using!
Update musl to 1.1.18
According to http://www.musl-libc.org/download.html:
This release corrects regressions in glob() and armv4t build failure
introduced in the previous release, and includes an important bug fix
for posix_spawnp in the presence of a large PATH environment variable.
According to http://www.musl-libc.org/download.html:
This release corrects regressions in glob() and armv4t build failure
introduced in the previous release, and includes an important bug fix
for posix_spawnp in the presence of a large PATH environment variable.
The main goal here is to use FreeBSD's normal libc++, instead of
statically linking the libstdc++ packaged with GCC, because that
libstdc++ has bugs that cause rustc to deadlock inside LLVM.
But the easiest way to use libc++ is to switch the build from GCC to
Clang, and the Clang package in the Ubuntu image already knows how to
cross-compile (given a sysroot and preferably cross-binutils), so the
toolchain script now uses that instead of building a custom compiler.
This also de-duplicates the `build-toolchain.sh` script.
* SDK tools is upgraded to 27.0.0.
- Refactored to use `sdkmanager`/`avdmanager` instead of the deprecated
`android` tool.
* The Java version used by Android SDK is downgraded to OpenJDK-8, in order
to download the SDK through HTTPS.
* NDK is upgrade to r15c.
- Dropped support for android-9 (2.3 / Gingerbread), the minimal
supported version is now android-14 (4.0 / Ice Cream Sandwich).
- Changed the default Android compiler from GCC to clang.
- For details of change introduced by NDK r15, see
https://github.com/android-ndk/ndk/wiki/Changelog-r15.
Apparently the https urls are broken due to some certificate validation
whatnots, and so far the least intrusive solution I've found is to just disable
that.
Moving buckets from us-east-1 to us-west-1 because us-west-1 is where
rust-central-station itself runs and in general is where we have all our other
buckets.
This commit adds a disabled builder which will run all tests for the standard
library for aarch64 in a QEMU instance. Once we get enough capacity to run this
on Travis this can be used to boost our platform coverage of AArch64
Use the `-f` flag to indicate that, for example, a 500 response code is to be
considered a failure, triggering the normal retry logic. Also ignore errors
where we check the date from google.com, as a failure there shouldn't fail the
build.
This modifies the builder to download and use the LLVM tools from the
last known good build on the WebAssembly buildbot waterfall, since these
tools are built with the WebAssembly LLVM backend enabled.
This adds the experimental targets option to configure so it can be used
by the builders and changes the wasm32 Dockerfile accordingly. Instead
of using LLVM from the emsdk, the builder's emscripten tools now uses
the Rust in-tree LLVM, since this is the one built with wasm support.
