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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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crates/api/Cargo.toml
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@@ -20,6 +20,7 @@ libc = "0.2"
cfg-if = "0.1.9"
backtrace = "0.3.42"
rustc-demangle = "0.1.16"
lazy_static = "1.4"
[target.'cfg(target_os = "windows")'.dependencies]
winapi = "0.3.7"