github
/
cranelift
mirror of https://github.com/bytecodealliance/wasmtime.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
12028 Commits
49 Branches
140 Tags
128 MiB
Tree: 11af6aff01
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '11af6aff01'
${ noResults }
cranelift/docs/wmemcheck.md

9 lines
337 B
Raw Normal View History

Memcheck for Wasm guests in Wasmtime (#6820) * attempt at inserting things where i think they might belong + questions * entry hook + questions * commented out all changes, doc comment errors * fix doc comment * libcalls build now!!!! * initial check_malloc_exit setup * WIP: load/store hooks * hooks added + building * added valgrind library * made wasm-valgrind accessible in wasmtime * check_malloc filled in... * move valgrind_state to an appropriate part of instance it works!!!!! * yay it's working! (?) i think?? * stack tracing in progress * errors + num bytes displayed * initial valgrind configuration * valgrind conditional some warnings fixed * conditional compilation + CLI flag finished * panic!() changed to bail!() * started adding doc comments * added memory grow hook + fixed access size handling * removed test.wasm * removed malloc_twice.wat * doc comments in spec.rs * pr feedback addressed * ran cargo fmt * addressing more feedback * Remove fuzz crate from wmemcheck. * Review feedback and test fix. * add wasmtime-wmemcheck crate to publish allowlist. * fix build without compiler features * reorder crates in publish list * Add trampolines for libcalls on s390x. * Make wasmtime-wmemcheck dep an exact version requirement. --------- Co-authored-by: iximeow <awortman@fastly.com> Co-authored-by: Chris Fallin <chris@cfallin.org> Co-authored-by: iximeow <git@iximeow.net>
1 year ago
Wmemcheck provides debug output for invalid mallocs, reads, and writes.
How to use:
1. When building Wasmtime, add the CLI flag "--features wmemcheck" to compile with wmemcheck configured.
> cargo build --features wmemcheck
2. When running your wasm module, add the CLI flag "--wmemcheck".
> wasmtime run --wmemcheck test.wasm