Manish Goregaokar eb860987cf Rollup merge of #88828 - FabianWolff:issue-88585, r=dtolnay ... Use `libc::sigaction()` instead of `sys::signal()` to prevent a deadlock Fixes #88585. POSIX [specifies](https://man7.org/linux/man-pages/man3/fork.3p.html) that after forking, > to avoid errors, the child process may only execute async-signal-safe operations until such time as one of the exec functions is called. Rust's standard library does not currently adhere to this, as evidenced by #88585. The child process calls [`sys::signal()`](7bf0736e13/library/std/src/sys/unix/android.rs (L76)), which on Android calls [`libc::dlsym()`](7bf0736e13/library/std/src/sys/unix/weak.rs (L101)), which is [**not**](https://man7.org/linux/man-pages/man7/signal-safety.7.html) async-signal-safe, and in fact causes a deadlock in the example in #88585. I think the easiest solution here would be to just call `libc::sigaction()` instead, which [is](https://man7.org/linux/man-pages/man7/signal-safety.7.html) async-signal-safe, provides the functionality we need, and is apparently available on all Android versions because it is also used e.g. [here](7bf0736e13/library/std/src/sys/unix/stack_overflow.rs (L112-L114)).		2021-10-05 12:52:42 -07:00
..
alloc	Rollup merge of #89244 - DeveloperC286:pair_slices_fields_to_private, r=joshtriplett	2021-10-04 23:56:18 -07:00
backtrace@cc89bb66f9	Update the backtrace crate	2021-09-15 20:32:35 +02:00
core	Rollup merge of #89413 - matthewjasper:spec-marker-fix, r=nikomatsakis	2021-10-04 21:12:35 -07:00
panic_abort	Add SOLID targets	2021-09-28 11:31:47 +09:00
panic_unwind	Add SOLID targets	2021-09-28 11:31:47 +09:00
proc_macro	Rollup merge of #86165 - m-ou-se:proc-macro-span-shrink, r=dtolnay	2021-09-10 08:23:14 -07:00
profiler_builtins	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rtstartup
rustc-std-workspace-alloc	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc-std-workspace-core	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc-std-workspace-std	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
std	Rollup merge of #88828 - FabianWolff:issue-88585, r=dtolnay	2021-10-05 12:52:42 -07:00
stdarch@5fdbc476af	Update stdarch submodule	2021-09-21 11:24:08 +02:00
test	Rollup merge of #89235 - yaahc:junit-formatting, r=kennytm	2021-09-28 20:00:15 +02:00
unwind	Add SOLID targets	2021-09-28 11:31:47 +09:00