T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move address maps to a section of the compiled image (#3240)

Browse Source 
This commit moves the `address_map` field of `FunctionInfo` into a
custom-encoded section of the executable. The goal of this commit is, as
previous commits, to push less data through `bincode`. The `address_map`
field is actually extremely large and has huge benefits of not being
decoded when we load a module. This data is only used for traps and such
as well, so it's not overly important that it's massaged in to precise
data the runtime can extremely speedily use.

The `FunctionInfo` type does retain a tiny bit of information about the
function itself (it's start source location), but other than that the
`FunctionAddressMap` structure is moved from `wasmtime-environ` to
`wasmtime-cranelift` since it's now no longer needed outside of that
context.
This commit is contained in:
Alex Crichton
2021-08-26 23:06:41 -05:00
committed by GitHub
parent d12f1d77e6
commit fc91176685
10 changed files with 281 additions and 141 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
crates/environ/Cargo.toml
View File

@@ -22,7 +22,7 @@ log = { version = "0.4.8", default-features = false }
more-asserts = "0.2.1"
cfg-if = "1.0"
gimli = { version = "0.25.0", default-features = false, features = ['read'] }
object = { version = "0.26.0", default-features = false, features = ['write_core', 'elf'] }
object = { version = "0.26.0", default-features = false, features = ['read_core', 'write_core', 'elf'] }
target-lexicon = "0.12"
[badges]