by the kernel. Separating this from pt_uc makes it possible to avoid a race
condition in pt_uc management near the STACK_SWITCH part of pthread__switch()
and pthread__locked_switch().
Remove pt_sleepuc pointer, which was made obsolete by the previous round of
UC juggling but still present in the assembler files.
1. add new pthread__abort() and change pthread_assert(0) to it.
2. put constcond in the right place (in the macro).
3. no space after pthread__assert macro.
opposed to internal errors. The setting of the PTHREAD_ERRORMODE
environment variable determines the runtime behavior. Valid settings
are "ignore", "abort", and "print". The default is currently "abort".
* pthread_attr_getname_np()
* pthread_attr_setname_np()
* pthread_getname_np()
* pthread_setname_np()
In addition to being query'able by the application (for log messages, etc.),
it is intended that these names can show up in the debugger.
Reviewed by nathanw.
over a sleep queue and puts everything on the run queue. This permits
the iteration to be inside the acquisition of the run queue spinlock,
avoiding repetitive acquire/release cycles.
- Signal handlers now simply continue executing the current thread,
rather than trying to put themselves back on the queue that they came
from, which was rather fragile. As a result, all callers of
pthread__block() must be prepared to handle spurious wakeups.
- When a signal arrives for a thread that is blocked in the kernel,
note this in another field in pthread_st and set a flag. Process the
signal and set up the trampoline for the handler *after* the thread
unblocks, so that both the trampoline and the returned state from
the kernel are preserved.
- Factor out some code into a pthread__deliver_signal() routine;
the signal-taking code in pthread_sigmask() should be able to use this
soon.
This is still gross, and there are still some terrible MP issues lurking here,
but progress crawls along.
nathanw