src-test2/lib/libc_r/uthread/uthread_create.c, branch release/8.2.0_cvs

Copy releng/8.2 to release/8.2.0 for 8.2-RELEASE.

2011-02-16T16:18:46Z

Approved by: re (implicit) This commit was manufactured to restore the state of the 8.2-RELEASE image.

Remove 3rd clause, renumber, ok per email

2007-01-12T07:26:21Z

For the amd64 we need to do some extra stack alignment fixups. Otherwise

2003-12-03T06:54:40Z

we can end up with some threads with a non-16-byte-aligned stack. This causes some interesting side effects, including general protection faults leading to a SIGBUS when doing floating point or varargs. This should be just a verbose NOP for the other platforms. Approved by: re (scottl)

Port libc_r to ia64. We need to do things slightly different

2003-01-06T00:56:23Z

because we have 2 stacks per thread: the regular downward memory stack and the irregular upward register stack. This implementation lets both stacks grow toward each other. An alternative scheme is to have them grow away from each other. The alternate scheme has the advantage that both stack grow toward guard pages. Since libc_r is virtually dead and we really want the *context stuff for thread switching, we don't try to be perfect, just functional.

At initialization, override the pthread stub routines in libc

2002-11-13T18:13:26Z

by filling in the jump table. Convert uses of pthread routines within libc_r to use the internal versions (_pthread_foo instead of pthread_foo). Remove a couple of globals from application namespace.

Be more agresive on arguments' checking.

2002-10-26T13:47:06Z

OK'ed by: deischen MFC after: 3 days

Oops, forgot to set the suspended flag for threads that are created

2002-07-09T13:24:52Z

initially suspended. This was preventing such threads from getting resumed. Reported by: Bill Huey

Add the ability to recognize old references to keys, and return NULL

2002-03-19T22:58:56Z

when old keys are referenced (after pthread_key_delete()) via pthread_getspecific().

This has been sitting in my local tree long enough. Remove the use

2002-02-09T19:58:41Z

of an alternate signal stack for handling signals. Let the kernel send signals on the stack of the current thread and teach the threads signal handler how to deliver signals to the current thread if it needs to. Also, always store a threads context as a jmp_buf. Eventually this will change to be a ucontext_t or mcontext_t. Other small nits. Use struct pthread * instead of pthread_t in internal library routines. The threads code wants struct pthread *, and pthread_t doesn't necessarily have to be the same. Reviewed by: jasone

Implement pthread_attr_[gs]etguardsize(). Non-default-size stacks used to

2001-07-20T04:23:11Z

be malloc()ed, but they are now allocated using mmap(), just as the default-size stacks are. A separate cache of stacks is kept for non-default-size stacks. Collaboration with: deischen