Commit Graph

8 Commits

Author SHA1 Message Date
Mark Rousskov
2a663555dd Remove licenses 2018-12-25 21:08:33 -07:00
Adrian Budau
bf172c532a Properly report ENOSYS by modifying errno 2018-12-21 15:53:37 +02:00
Adrian Budau
da47bd3ae0 Fix typo in comment 2018-12-20 13:29:04 +02:00
Adrian Budau
cc53f4e9f4 Fix pipe2 and accept4 on static linked executables on linux (like musl). 2018-12-20 13:22:31 +02:00
Zack M. Davis
1b6c9605e4 use field init shorthand EVERYWHERE
Like #43008 (f668999), but _much more aggressive_.
2017-08-15 15:29:17 -07:00
Alex Crichton
9c462b84c8 std: Fix linking against signal on Android
Currently the minimum supported Android version of the standard library is
API level 18 (android-18). Back in those days [1] the `signal` function was
just an inline wrapper around `bsd_signal`, but starting in API level
android-20 the `signal` symbols was introduced [2]. Finally, in android-21
the API `bsd_signal` was removed [3].

Basically this means that if we want to be binary compatible with multiple
Android releases (oldest being 18 and newest being 21) then we need to check
for both symbols and not actually link against either.

This was first discovered in rust-lang/libc#236 with a fix proposed in
rust-lang/libc#237. I suspect that we'll want to accept rust-lang/libc#237 so
Rust crates at large continue to be compatible with newer releases of Android
and crates, like the standard library, that want to opt into older support can
continue to do so via similar means.

Closes rust-lang/libc#236

[1]: https://chromium.googlesource.com/android_tools/+/20ee6d20/ndk/platforms/android-18/arch-arm/usr/include/signal.h
[2]: https://chromium.googlesource.com/android_tools/+/fbd420/ndk_experimental/platforms/android-20/arch-arm/usr/include/signal.h
[3]: https://chromium.googlesource.com/android_tools/+/20ee6d/ndk/platforms/android-21/arch-arm/usr/include/signal.h
2016-04-04 21:54:59 -07:00
Alex Crichton
46315184cb std: Add support for accept4 on Linux
This is necessary to atomically accept a socket and set the CLOEXEC flag at the
same time. Support only appeared in Linux 2.6.28 so we have to dynamically
determine which syscall we're supposed to call in this case.
2016-02-05 17:11:02 -08:00
Alex Crichton
1a31e1c09f std: Add a helper for symbols that may not exist
Right now we only attempt to call one symbol which my not exist everywhere,
__pthread_get_minstack, but this pattern will come up more often as we start to
bind newer functionality of systems like Linux.

Take a similar strategy as the Windows implementation where we use `dlopen` to
lookup whether a symbol exists or not.
2016-02-05 17:11:02 -08:00