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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Wed, 13 Nov 2002 22:40:23 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/lib/libc/ia64/gen _setjmp.S
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marcel      2002/11/13 22:40:23 PST

  Modified files:
    lib/libc/ia64/gen    _setjmp.S 
  Log:
  o  Fix _longjmp() to return 1 when the return value is given as 0.
  o  Remove the unwanted smartness in _longjmp() where it compares
     the current ar.bspstore with the saved ar.bspstore and restores
     ar.rnat based on it. This either avoids saving ar.rnat in the
     jmp_buf or is the consequence of not saving ar.rnat. All this
     complexity breaks libc_r where we use longjmp() to switch to
     different threads and the current ar.bspstore has no relation
     to the saved ar.bspstore. Thus: we save ar.rnat in setjmp()
     and simply restore ar.bspstore and ar.rnat in longjmp().
  
  This code needs a cleanup.
  
  Revision  Changes    Path
  1.8       +25 -52    src/lib/libc/ia64/gen/_setjmp.S

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