Folks, Currently, my understanding is that valgrind memchecker can mark a memory area as non accessible via the VALGRIND_MAKE_MEM_NOACCESS() macro, but there is currently no way to mark it as read-only.
am i right ? if yes, is there any plan to develop such a feature ? Thanks, Gilles FWIW, here is the context. in MPI http://www.mpi-forum.org/, the MPI_Isend() function can be used for a non blocking send. Today's standard mandates the send buffer remains accessible during the send operation, but the end user should not modify it unless the send is complete (for example after MPI_Wait() returns). >From an OpenMPI developer point of view, it would be nice to mark the send buffer as read-only between MPI_Isend() and MPI_Wait() so valgrind can trap incorrect user code that modifies the send buffer when it is not allowed. ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
