Re: cvs commit: src/sys/sys tls.h src/lib/libc/gen tls.c src/lib/libthread_xu/arch/amd64/amd64 pthread_md.c src/lib/libthread_xu/arch/i386/i386 pthread_md.c src/libexec/rtld-elf rtld.c rtld.h rtld_tls.h src/libexec/rtld-elf/i386 reloc.c

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>]

:
:On Sun, Mar 27, 2005 at 07:33:20PM -0800, Matthew Dillon wrote:
:>   1.5       +35 -23    src/libexec/rtld-elf/i386/reloc.c
:
:The check for libc already having allocated a TCB is unnecessary,
:the program is pretty much hosed if this happens.
:
:Joerg

    There is some sort of init function in libc which... see
    /usr/src/lib/libc/gen/tls.c, _init_tls(), which appears to run
    before anything else, at least for static builds.  I don't like
    the idea of not supporting the possibility that an initial TLS might
    already be set-up before the RTLD runs, so I went for a generic
    solution.

    An even larger issue is the fact that we seem to repeat the TLS and
    dynamic segment management code something like three times between
    libc and rtld.  I'd prefer that code to exist just once, though I
    don't see an easy way to do it in just one place at the moment.

					-Matt
					Matthew Dillon 
					<dillon@xxxxxxxxxxxxx>