mocramis/x15.git - X15 microkernel perf module

Age	Commit message (Collapse)	Author
2018-03-02	kern/spinlock: fix and optimize	Richard Braun
	Making the unlock operation block allows tricky deadlocks to occur in case a thread is interrupted right before announcing itself as the first waiter in the queue. Since locking is expected to block, the spinlock implementation is reworked to move the hand-off performed by the unlock operation into the lock operation. As a side effect, the common case of a single waiter is also optimized.
2018-02-24	New errno.h standard header	Richard Braun
	Use standard errno codes. This change also adds strerror to string.h.
2018-02-24	Don't use reserved identifiers	Richard Braun

2018-02-22	kern/spinlock: add ownership tracking as a debugging feature	Richard Braun

2017-12-03	Revert "Make assert have no side effects"	Richard Braun
	This reverts commit d18d0e85596f90e0bd597b33d58209d0b3973c95.
2017-09-02	kern/thread: new preemption control macros	Richard Braun
	These new macros take care of disabling/restoring interrupts in the appropriate order.
2017-09-02	Make assert have no side effects	Richard Braun
	This makes sure symbols referenced by assert uses may not be generated if unused. The recently introduced __unused macro is used to suppress compiler warnings resulting from this change.
2017-07-13	Switch to initialization operations	Richard Braun

2017-04-09	kern/{mutex,rtmutex,spinlock}: optimize fast paths	Richard Braun
	Rework so that fast paths occupy the first indentation level, and use the unlikely macro on the relevant conditions.
2017-04-03	kern/spinlock: new fair and scalable implementation	Richard Braun
	This new implementation, based on the MCS locks, provides rigorous fairness and excellent scalability.
2017-02-20	kern/spinlock: make spinlock_trylock return ERROR_BUSY instead of 1	Richard Braun

2017-02-04	kern/types: split into module-specific type headers	Richard Braun
	Using a single header for all types causing inclusion circular dependencies isn't very elegant and doesn't scale.
2016-12-09	Force brackets around one-line conditional statements	Richard Braun
	This change was done using astyle, with a few manual editing here and there.
2014-08-15	Remove static initializer macros	Richard Braun
	These initializers are unnecessary, unused, and cumbersome to maintain.
2014-06-18	kern/thread: add thread_join	Richard Braun
	This change affects more files than it apparently would at first glance. This is because circular dependencies can easily be created between the thread, mutex, condition and spinlock modules. As a result, some of the types of these modules are now defined in kern/types.h.
2013-05-15	x86/cpu: pass flags by address to cpu_intr_save	Richard Braun
	Not a necessary change, but done for consistency.
2013-04-06	kern/spinlock: rewrite spinlock_assert_locked as a macro	Richard Braun
	Using a macro makes panic display the function where the assertion actually failed.
2013-04-03	kern/spinlock: change the interface of trylock functions	Richard Braun
	Make trylock functions behave as error-returning functions.
2013-02-26	kern/spinlock: add interrupt-handling locking primitives	Richard Braun

2012-12-11	kern/spinlock: minor changes	Richard Braun

2012-12-10	kern/spinlock: describe implied memory barriers	Richard Braun

2012-12-10	kern/spinlock: make spinlocks disable preemption	Richard Braun

2012-11-29	kern/spinlock: fix spinlock_assert_locked return type	Richard Braun

2012-11-17	kern/spinlock: new spinlock_assert_locked function	Richard Braun

2012-11-17	kern/spinlock: don't disable interrupts	Richard Braun
	Let the users deal with interrupts themselves. It allows greater freedom to modules that need to carefully change the machine state.
2012-11-02	kern/spinlock: new module	Richard Braun
	This module provides spin locks.