Releases · NVlabs/NVBit

Added nvbit_add_call_arg_mref_addr64 to automatically generate a memory reference to be passed to the instrumentation functions.
Added ability to use CXX and CC to override compiler in all tools Makefiles.
Added new core API: nvbit_get_local_mem_base_addr(CUcontext cuctx) to get base virtual address of the local memory mapped space.
Added new core API: nvbit_get_related_functions(CUcontext cuctx, CUfunction func) to get the vector of all CUfunctions callable by a given CUfunction.
Added support for SM_37, SM_53, SM_62 and SM_72.

Removed NVBIT_EXPORT_FUNC since new compilation flow for tools uses the new nvcc option -Xptxas -astoolspatch --keep-device-functions which makes this step unnecessary.
Removed core API nvbit_at_function_first_load(CUcontext ctx, CUfunction func) (and modified example to use APIs like those presented in the MICRO 2019 paper).
Removed NOINSPECT control API since now inspection can be controlled directly by the user inside nvbit_at_cuda_event.

Modified Lifter (i.e. Class Instr) to support broader set of operands, and register modifiers. Previous tools need to be slightly modified to work with the new Instr class.
Changed tool compilation flow to require nvcc >= 10.1. Injected functions must be compiled separately with option -Xptxas -astoolspatch --keep-device-functions and for the moment can't use any external symbols.
Changed example tools structure with a separate inject_funcs.cu file which contains all the injected functions and it is compiled with the options specified above.
Changed overall instrumentation approach to be compatible to what explained in the MICRO 2019. Specifically discontinued the callback nvbit_at_function_first_load to allow user to programmatically inspect and instrument at kernel launch time.
Changed all the examples to reflect the change above.

Fixed tools Makefiles to use -ccbin=$(CXX) so that g++ is used when compiling a tool and libstdc++ is appropriately linked to avoid undefined symbol errors.
Fixed bug in NVBit context initialization and termination.
Fixed bug in Instr::getSize() when LD.64 are encountered.

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