From mtmorgan at fhcrc.org  Fri Mar 16 17:49:41 2007
From: mtmorgan at fhcrc.org (Martin Morgan)
Date: Fri, 16 Mar 2007 09:49:41 -0700
Subject: [Rd] Incomplete valgrind instrumentation level documentation
Message-ID: <6phzm6dw2u2.fsf@gopher4.fhcrc.org>

The 'Writing R Extensions' manual, configure.ac, and the comment at
the top of memory.c suggests that there are valgrind instrumentation
levels 0, 1, 2 but I think the actual code has four levels.

   level 0 is no additional instrumentation

   level 1 marks uninitialized numeric, logical, integer vectors
           and R_alloc memory

   level 2 marks free memory (DATAPTR, STRING_PTR) and the protection
           stack as inaccessible

   level 3 marks SEXP as inaccessible
-- 
Martin Morgan
Bioconductor / Computational Biology
http://bioconductor.org



[Rd] Incomplete valgrind instrumentation level documentation
Martin Morgan