Re: cvs commit: src/lib/libc/gen Makefile.inc errlst.c src/lib/libc/i386/sys cerror.S ptrace.S src/lib/libc/sys Makefile.inc __error.c src/lib/libc_r/sys Makefile.inc uthread_error.c src/lib/libc_r/uthread Makefile.inc ...

[David Xu <davidxu@xxxxxxxx>]

No, both DragonflyBSD and FreeBSD's tls implementation are not
asynchronous signal safe yet, also I did try to support it
in rtld, but it still does not work correctly, because reader
lock in rtld does not disable signal.
I think this change should be delayed, otherwise it will cause
a dead lock in signal handler.
I remembered I ever told Matt that a fast userland critical section
is needed, I just don't have enough time to follow the Dragonfly 
development speed, sorry for that.

David Xu


Joerg Sonnenberger wrote:
> joerg       2005/05/03 00:29:04 PDT
>
> DragonFly src repository
>
>   Modified files:
>     lib/libc/gen         Makefile.inc errlst.c 
>     lib/libc/i386/sys    cerror.S ptrace.S 
>     lib/libc/sys         Makefile.inc 
>     lib/libc_r/sys       Makefile.inc 
>     lib/libc_r/uthread   Makefile.inc pthread_private.h 
>                          uthread_init.c uthread_mutex.c 
>     lib/libthread_xu     Makefile pthread.map 
>     lib/libthread_xu/thread Makefile.inc thr_mutex.c 
>     sys/sys              errno.h 
>   Removed files:
>     lib/libc/sys         __error.c 
>     lib/libc_r/sys       uthread_error.c 
>     lib/libc_r/uthread   uthread_seterrno.c 
>     lib/libthread_xu/sys Makefile.inc thr_error.c 
>     lib/libthread_xu/thread thr_seterrno.c 
>   Log:
>   Make errno a thread-local variable and remove the __error function.
>   The handling of ceiling violations on mutexes can be improved, it
>   currently needs two syscalls.
>   
>   Revision  Changes    Path
>   1.13      +5 -1      src/lib/libc/gen/Makefile.inc
>   1.3       +2 -1      src/lib/libc/gen/errlst.c
>   1.4       +14 -12    src/lib/libc/i386/sys/cerror.S
>   1.4       +16 -3     src/lib/libc/i386/sys/ptrace.S
>   1.13      +0 -5      src/lib/libc/sys/Makefile.inc
>   1.3       +2 -2      src/lib/libc_r/sys/Makefile.inc
>   1.6       +0 -1      src/lib/libc_r/uthread/Makefile.inc
>   1.8       +1 -7      src/lib/libc_r/uthread/pthread_private.h
>   1.8       +0 -1      src/lib/libc_r/uthread/uthread_init.c
>   1.3       +7 -5      src/lib/libc_r/uthread/uthread_mutex.c
>   1.4       +0 -2      src/lib/libthread_xu/Makefile
>   1.3       +0 -1      src/lib/libthread_xu/pthread.map
>   1.3       +0 -1      src/lib/libthread_xu/thread/Makefile.inc
>   1.5       +6 -4      src/lib/libthread_xu/thread/thr_mutex.c
>   1.6       +6 -5      src/sys/sys/errno.h
>
>
> http://www.dragonflybsd.org/cvsweb/src/lib/libc/gen/Makefile.inc.diff?r1=1.12&r2=1.13&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc/gen/errlst.c.diff?r1=1.2&r2=1.3&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc/i386/sys/cerror.S.diff?r1=1.3&r2=1.4&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc/i386/sys/ptrace.S.diff?r1=1.3&r2=1.4&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc/sys/Makefile.inc.diff?r1=1.12&r2=1.13&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc_r/sys/Makefile.inc.diff?r1=1.2&r2=1.3&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc_r/uthread/Makefile.inc.diff?r1=1.5&r2=1.6&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc_r/uthread/pthread_private.h.diff?r1=1.7&r2=1.8&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc_r/uthread/uthread_init.c.diff?r1=1.7&r2=1.8&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libc_r/uthread/uthread_mutex.c.diff?r1=1.2&r2=1.3&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libthread_xu/Makefile.diff?r1=1.3&r2=1.4&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libthread_xu/pthread.map.diff?r1=1.2&r2=1.3&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libthread_xu/thread/Makefile.inc.diff?r1=1.2&r2=1.3&f=u
> http://www.dragonflybsd.org/cvsweb/src/lib/libthread_xu/thread/thr_mutex.c.diff?r1=1.4&r2=1.5&f=u
> http://www.dragonflybsd.org/cvsweb/src/sys/sys/errno.h.diff?r1=1.5&r2=1.6&f=u