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Improve handling of strings for backtraces (#843)

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* Improve handling of strings for backtraces

Largely avoid storing strings at all in the `wasmtime-*` internal
crates, and instead only store strings in a separate global cache
specific to the `wasmtime` crate itself. This global cache is inserted
and removed from dynamically as modules are created and deallocated, and
the global cache is consulted whenever a `Trap` is created to
symbolicate any wasm frames.

This also avoids the need to thread `module_name` through the jit crates
and back, and additionally removes the need for `ModuleSyncString`.

* Run rustfmt
This commit is contained in:
Alex Crichton
2020-01-24 11:53:55 -06:00
committed by GitHub
parent 21e0a99884
commit 3db1074c15
17 changed files with 139 additions and 156 deletions
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@@ -2032,6 +2032,7 @@ dependencies = [
"backtrace",
"cfg-if",
"file-per-thread-logger",
"lazy_static",
"libc",
"pretty_env_logger",
"rayon",