Clean libc-test for apple targets
This cleans up the build.rs of `libc-test` for apple targets.
I wanted to update the docker containers of some targets so that we can start testing newer currently-skipped APIs properly, but it is impossible to figure out which headers and APIs are skipped for each target, which has to change if we update the glibc version in one Linux container but not the other (updating them all at once is just madness).
This PR separates the testing of apple targets into its own self-contained function. This allows seeing exactly which headers are included, and which items are skipped. A lot of work will be required to separate the testing of all major platforms and make the script reasonable.
During the clean up, I discovered that, at least for apple targets, deprecated but not removed APIs are not tested. I re-enabled testing for those, and fixed `daemon`, which was not properly linking its symbol. I also added the `#[deprecated]` attribute to the `#[deprecated]` APIs of the apple targets. The attribute is available since Rust 1.9.0 and the min. Rust version we support is Rust 1.13.0.
Many other APIs are also currently not tested "because they are weird" which I interpret as "the test failed for an unknown reason", as a consequence:
* the signatures of execv, execve, and execvp are incorrect (see https://github.com/rust-lang/libc/issues/1272)
* the `sig_t` type is called `sighandler_t` in libc for some reason: https://github.com/rust-lang/libc/issues/1273
This probably explains why some other things, like the `sa_handler`/`sa_sigaction` fields of `sigaction` were skipped. The field is actually a union, which can be either a `sig_t` for the `sa_handler` field, or some other type for the `sa_sigaction` field, but because the distinction was not made, the field was not checked.
The latest ctest version can check volatile pointers, so a couple of skipped tests are now tested using this feature.
This cleans up the build.rs of `libc-test` for apple targets.
I wanted to update the docker containers of some targets so that we can start
testing newer currently-skipped APIs properly, but it is impossible to figure
out which headers and APIs are skipped for each target.
This PR separates the testing of apple targets into its own self-contained
function. This allows seeing exactly which headers are included, and which items
are skipped. A lot of work will be required to separate the testing of all major
platforms and make the script reasonable.
During the clean up, I discovered that, at least for apple targets, deprecated
but not removed APIs are not tested. I re-enabled testing for those, and fixed
`daemon`, which was not properly linking its symbol. I also added the
`#[deprecated]` attribute to the `#[deprecated]` APIs of the apple targets. The
attribute is available since Rust 1.9.0 and the min. Rust version we support is
Rust 1.13.0.
Many other APIs are also currently not tested "because they are weird" which I
interpret as "the test failed for an unknown reason", as a consequence:
* the signatures of execv, execve, and execvp are incorrect (see
https://github.com/rust-lang/libc/issues/1272)
* the `sig_t` type is called `sighandler_t` in libc for some reason:
https://github.com/rust-lang/libc/issues/1273
This probably explains why some other things, like the
`sa_handler`/`sa_sigaction` fields of `sigaction` were skipped. The field is
actually a union, which can be either a `sig_t` for the `sa_handler` field, or
some other type for the `sa_sigaction` field, but because the distinction was
not made, the field was not checked.
The latest ctest version can check volatile pointers, so a couple of skipped
tests are now tested using this feature.
Fix build of `rustc-dep-of-std` feature
Enusre that `no_core` is turned on, and while here update the `no_std`
header to be unconditionally applied.
Closes#1267
Test that targets without a shipping libcore / libstd build properly
This PR tests that `libc` builds on targets that currently don't ship a `libcore`/`libstd` by cross-compiling to them from Linux and MacOSX using `Xargo`.
This fixes the build on DragonflyBSD (superseeds #1237), Haiku, bitrig, and OpenBSD (superseeds #1259).
cc @asomers @strangelittlemonkey @semarie
Moved inotify declarations up so that it works on android too.
Following my previous pull request to include inotify bindings, I would like to move the code so that it benefits android too.
