From c42be504c92d76d2e06d0fc8ebd05fc913376d2d Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 16 Nov 2016 14:50:09 +0100 Subject: posix: Add self-contained pthread spinlock Turn pthread_spinlock_t into a self-contained object. On uni-processor configurations, interrupts are disabled in the lock/trylock operations and the previous interrupt status is restored in the corresponding unlock operations. On SMP configurations, a ticket lock is a acquired and released in addition. The self-contained pthread_spinlock_t object is defined by Newlib in . typedef struct { struct _Ticket_lock_Control _lock; __uint32_t _interrupt_state; } pthread_spinlock_t; This implementation is simple and efficient. However, this test case of the Linux Test Project would fail due to call of printf() and sleep() during spin lock ownership: https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_spin_lock/1-2.c There is only limited support for profiling on SMP configurations. Delete CORE spinlock implementation. Update #2674. --- testsuites/psxtests/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'testsuites/psxtests/Makefile.am') diff --git a/testsuites/psxtests/Makefile.am b/testsuites/psxtests/Makefile.am index a3bffb900f..0ff5cb300e 100644 --- a/testsuites/psxtests/Makefile.am +++ b/testsuites/psxtests/Makefile.am @@ -11,7 +11,7 @@ _SUBDIRS += psxhdrs psx01 psx02 psx03 psx04 psx05 psx06 psx07 psx08 psx09 \ psxitimer psxmsgq01 psxmsgq02 psxmsgq03 psxmsgq04 \ psxmutexattr01 psxobj01 psxrwlock01 psxsem01 psxsignal01 psxsignal02 \ psxsignal03 psxsignal04 psxsignal05 psxsignal06 \ - psxspin01 psxspin02 psxsysconf \ + psxspin01 psxsysconf \ psxtime psxtimer01 psxtimer02 psxualarm psxusleep psxfatal01 psxfatal02 \ psxintrcritical01 psxstack01 psxstack02 \ psxeintr_join psxgetattrnp01 psxclock01 -- cgit v1.2.3