About

Valgrind is a widely-used instrumentation framework that is utilized for the development of dynamic analysis tools, including memcheck, which is particularly helpful in identifying memory management problems.

Project Scope

1. A framework for vector support

2. Several (tens of) RVV instructions support in Valgrind, it can run the following test cases and detect the memory issues (memcheck)

   1. https://github.com/riscv/riscv-v-spec/tree/master/example

Components and Repos

• riscv port of valgrind (not upstreamed to yet): https://github.com/petrpavlu/valgrind-riscv64.git

Stakeholders and Partners

• RISE - Intel, T-Head

• External

  • Petr Pavlu (https://github.com/petrpavlu) - maintainer of riscv port

  • valgrind community

Measure of Success

• Code committed to riscv port

Timeline

1. Solution discussion - 8/31/2023

2. Prototype - 9/30/2023

3. Upstream - 12/31/2023

RISE Requirement

Not so far.

Dependencies

None.

Status

Updates

Feb 29, 2024 

Petr came up with another idea, each way has different pros and cons. https://sourceforge.net/p/valgrind/mailman/message/58743032/

My prototype has already supported a wide range of rvv instructions, it's able to run e.g., coremark with auto vectorization.

Nov 15, 2023 

Petr had a prototype for ARM SVE, we are discussing how to have a unified solution for both sve and rvv. https://sourceforge.net/p/valgrind/mailman/valgrind-developers/?viewmonth=202311&viewday=13

Oct 19, 2023 

Petr Pavlu acked to the patch and will take a look at https://sourceforge.net/p/valgrind/mailman/message/46305757/

Jul 18, 2023 

The design is considered the right direction in general. https://sourceforge.net/p/valgrind/mailman/message/37872645/

Aug 30, 2023 

Intel setup a public repository for this project, a vector-IR based framework and dozens of RVV instructions have been enabled

• https://github.com/intel/valgrind-rvv/commits/poc-rvv