|author||Rich Felker <email@example.com>||2020-07-06 18:46:57 -0400|
|committer||Rich Felker <firstname.lastname@example.org>||2020-07-06 18:46:57 -0400|
fix async-cancel-safety of pthread_cancel
the previous commit addressing async-signal-safety issues around pthread_kill did not fully fix pthread_cancel, which is also required (albeit rather irrationally) to be async-cancel-safe. without blocking implementation-internal signals, it's possible that, when async cancellation is enabled, a cancel signal sent by another thread interrupts pthread_kill while the killlock for a targeted thread is held. as a result, the calling thread will terminate due to cancellation without ever unlocking the targeted thread's killlock, and thus the targeted thread will be unable to exit.
Diffstat (limited to 'src/ldso/x86_64/tlsdesc.s')
0 files changed, 0 insertions, 0 deletions