Use `gimli::write::Dwarf::convert_with_filter` for DWARF transform (#12428)

Replace parts of the transform code with `gimli`'s generic DWARF
transformation support. Most of the remaining code is spe

Use `gimli::write::Dwarf::convert_with_filter` for DWARF transform (#12428)

Replace parts of the transform code with `gimli`'s generic DWARF
transformation support. Most of the remaining code is specific to the
needs of Wasmtime.

The overall behaviour is the same as the previous implementation. We
build a graph of the DIE dependencies, and prune DIEs that don't have
valid code ranges. Then we traverse the DIE tree again and transform the
DIEs. However, there are some differences.

Previously, unresolved references to DIEs were stored in `PendingUnitRefs`
and `PendingDebugInfoRefs`, then at the end of the transformation we
went back and fixed up these references. The new behaviour reserves IDs
for all of the DIEs in the dependency tree before transformation, which
avoids the need to fix up references later. It also allows gimli to
correctly handle references in DWARF expressions, although that doesn't
currently matter for Wasmtime because it doesn't handle references in
expressions yet. The visible effect of this in Wasmtime is that the
order of transformed attributes will now always match the original DWARF.

The DIE tree pruning is slightly different. We no longer add back-edges
pointing to namespace DIEs or the root DIE, which previously caused some
DIEs to be reachable when they should not have been. In particular,
this affects DW_TAG_variable DIEs for global variables. Wasmtime can't
currently translate the location for globals, so they were added without
a valid DW_AT_location. These DIEs are now omitted from the transformed
DWARF. In the future when global variables can be translated correctly,
they can be included by calling `ReserveUnitSection::require_entry`.

Performance measurements for `wasmtime compile -D debug-info=y` show
minimal change.

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wasmtime-cranelift: Use `wasmtime_environ::error` instead of `anyhow` (#12204)

Delete DWARF `Reader` trait, also use `gimli::UnitRef` (#11883)

* Delete DWARF Reader trait

Use the existing Reader type alias instead. Most places were already
using this.

* Use `gimli::UnitRef`

Delete DWARF `Reader` trait, also use `gimli::UnitRef` (#11883)

* Delete DWARF Reader trait

Use the existing Reader type alias instead. Most places were already
using this.

* Use `gimli::UnitRef`

This reduces parameter counts and makes it harder to use the
wrong DWARF sections for split DWARF.

A drawback is that `UnitRef<'a, R>` is invariant over `R`,
so additional lifetime annotations are needed in some places.

This probably also fixes a bug with the parsing of
`AttributeValue::LocationListsRef`, but I didn't try to test this.

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Update gimli/object/addr2line crates (#11198)

* Update gimli/object/addr2line crates

Keeping up-to-date on their major version tracks

* Update backtrace and allow duplicates for now

Update Wasmtime to the 2024 Rust Edition (#10806)

* Update Wasmtime to the 2024 Rust Edition

Now that our MSRV supports the 2024 edition it's possible to make this
switch. This commit moves Wasmtim

Update Wasmtime to the 2024 Rust Edition (#10806)

* Update Wasmtime to the 2024 Rust Edition

Now that our MSRV supports the 2024 edition it's possible to make this
switch. This commit moves Wasmtime to the 2024 Edition to keep
up-to-date with Rust idioms and access many of the edition features
exclusive to the 2024 edition.

prtest:full

* Reformat with the 2024 edition

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Copy skeleton unit attributes for split DWARF (#9151)

The skeleton unit may contain attributes that don't appear in
the split unit. In particular, this includes DW_AT_ranges and
DW_AT_comp_dir.

Als

Copy skeleton unit attributes for split DWARF (#9151)

The skeleton unit may contain attributes that don't appear in
the split unit. In particular, this includes DW_AT_ranges and
DW_AT_comp_dir.

Also, set the correct form for the default directory in the
line program. Previously, the different form meant that we emitted
the directory again when a file used it. Copying the DW_AT_comp_dir
attribute is required for use of the default directory to work
successfully.

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Cleanup some DWARF transform code (#9139)

* Remove unneeded `cu_low_pc` parameter

`unit.low_pc` is the same value.

* Simplify `clone_line_program`

We were parsing things that had already been par

Cleanup some DWARF transform code (#9139)

* Remove unneeded `cu_low_pc` parameter

`unit.low_pc` is the same value.

* Simplify `clone_line_program`

We were parsing things that had already been parsed into `gimli::Unit`,
such as `DW_AT_comp_dir`, `DW_AT_name`, and `DW_AT_stmt_list`.

* Use `gimli::Dwarf` methods in more places

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Add basic support for DWARF processing with components (#8693)

This commit updates the native-DWARF processing (the `-D debug-info` CLI
flag) to support components. Previously component support was

Add basic support for DWARF processing with components (#8693)

This commit updates the native-DWARF processing (the `-D debug-info` CLI
flag) to support components. Previously component support was not
implemented and if there was more than one core wasm module within a
component then dwarf would be ignored entirely.

This commit contains a number of refactorings to plumb a more full
compilation context throughout the dwarf processing pipeline. Previously
the data structures used only were able to support a single module. A
new `Compilation` structure is used to represent the results of an
entire compilation and is plumbed through the various locations. Most of
the refactorings in this commit were then to extend loops to loop over
more things and handle the case where there is more than one core wasm
module.

I'll admit I'm not expert on DWARF but basic examples appear to work
locally and most of the additions here seemed relatively straightforward
in terms of "add another loop to iterate over more things" but I'm not
100% sure how well this will work. In theory this now supports
concatenating DWARF sections across multiple core wasm modules, but
that's not super well tested.

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Add initial support for DWARF Fission (#8055)

* add cloning for String attributes

* use into_owned instead of to_vec to avoid a clone if possible.

* runs, but does not substitute

* show vars from

Add initial support for DWARF Fission (#8055)

* add cloning for String attributes

* use into_owned instead of to_vec to avoid a clone if possible.

* runs, but does not substitute

* show vars from c program, start cleanup

* tiday

* resolve conflicts

* remove WASI folder

* Add module_builder

add dwarf_package to state for cache

* move dwarf loading to module_environ.rs

pass the dwarf as binary as low as module_environ.rs

* pass dwarf package rather than add to debug_info

* tidy option/result nested if

* revert some toml and whitespace.

* add features cranelift,winch to module_builder and compute_artifacts

remove some `use`s

* address some feedback

remove unused 'use's

* address some feedback

remove unused 'use's

* move wat feature condition to cover whole method.

* More feedback

Another try at wat feature move

* Another try at wat feature move

* change gimli exemption version

add typed-arena exemption

* add None for c-api

* move `use` to #cfg

* fix another config build

* revert unwanted code deletion

* move inner function closer to use

* revert extra param to Module::new

* workaround object crate bug.

* add missing parameter

* add missing parameter

* Merge remote-tracking branch 'origin/main' into dwarf-att-string

# Conflicts:
# crates/wasmtime/src/engine.rs
# crates/wasmtime/src/runtime/module.rs
# src/common.rs

* remove moduke

* use common gimli version of 28.1

* remove wasm feature, revert gimli version

* remove use of object for wasm dwarf

* remove NativeFile workaround, add feature for dwp loading

* sync winch signature

* revert bench api change

* add dwarf for no cache feature

* put back merge loss of module kind

* remove param from docs

* add dwarf fission lldb test

* simplify and include test source

* clang-format

* address feedback, remove packages

add docs
simplify return type

* remove Default use on ModuleTypesBuilder

* Remove an `unwrap()` and use `if let` instead

* Use `&[u8]` instead of `&Vec<u8>`

* Remove an `unwrap()` and return `None` instead

* Clean up some code in `transform_dwarf`

* Clean up some code in `replace_unit_from_split_dwarf`

* Clean up some code in `split_unit`

* Minor refactorings and documentation in `CodeBuilder`

* Restrict visibility of `dwarf_package_binary`

* Revert supply-chain folder changes

* Fix compile error on nightly

* prtest:full

* prtest:full

* prtest:full

* prtest:full

* prtest:full

* prtest:full

* prtest:full

* prtest:full

* use lldb 15

* prtest:full

* prtest:full

* load dwp when loading wasm bytes with path

* correct source file name

* remove debug

---------

Co-authored-by: Alex Crichton <[email protected]>

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Fix warning about field that is never read (#7898)

Remove dependency on `more-asserts` (#4408)

* Remove dependency on `more-asserts`

In my recent adventures to do a bit of gardening on our dependencies I
noticed that there's a new major version

Remove dependency on `more-asserts` (#4408)

* Remove dependency on `more-asserts`

In my recent adventures to do a bit of gardening on our dependencies I
noticed that there's a new major version for the `more-asserts` crate.
Instead of updating to this though I've opted to instead remove the
dependency since I don't think we heavily lean on this crate and
otherwise one-off prints are probably sufficient to avoid the need for
pulling in a whole crate for this.

* Remove exemption for `more-asserts`

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Remove `wasmtime-environ`'s dependency on `cranelift-codegen` (#3199)

* Move `CompiledFunction` into wasmtime-cranelift

This commit moves the `wasmtime_environ::CompiledFunction` type into the
`

Remove `wasmtime-environ`'s dependency on `cranelift-codegen` (#3199)

* Move `CompiledFunction` into wasmtime-cranelift

This commit moves the `wasmtime_environ::CompiledFunction` type into the
`wasmtime-cranelift` crate. This type has lots of Cranelift-specific
pieces of compilation and doesn't need to be generated by all Wasmtime
compilers. This replaces the usage in the `Compiler` trait with a
`Box<Any>` type that each compiler can select. Each compiler must still
produce a `FunctionInfo`, however, which is shared information we'll
deserialize for each module.

The `wasmtime-debug` crate is also folded into the `wasmtime-cranelift`
crate as a result of this commit. One possibility was to move the
`CompiledFunction` commit into its own crate and have `wasmtime-debug`
depend on that, but since `wasmtime-debug` is Cranelift-specific at this
time it didn't seem like it was too too necessary to keep it separate.
If `wasmtime-debug` supports other backends in the future we can
recreate a new crate, perhaps with it refactored to not depend on
Cranelift.

* Move wasmtime_environ::reference_type

This now belongs in wasmtime-cranelift and nowhere else

* Remove `Type` reexport in wasmtime-environ

One less dependency on `cranelift-codegen`!

* Remove `types` reexport from `wasmtime-environ`

Less cranelift!

* Remove `SourceLoc` from wasmtime-environ

Change the `srcloc`, `start_srcloc`, and `end_srcloc` fields to a custom
`FilePos` type instead of `ir::SourceLoc`. These are only used in a few
places so there's not much to lose from an extra abstraction for these
leaf use cases outside of cranelift.

* Remove wasmtime-environ's dep on cranelift's `StackMap`

This commit "clones" the `StackMap` data structure in to
`wasmtime-environ` to have an independent representation that that
chosen by Cranelift. This allows Wasmtime to decouple this runtime
dependency of stack map information and let the two evolve
independently, if necessary.

An alternative would be to refactor cranelift's implementation into a
separate crate and have wasmtime depend on that but it seemed a bit like
overkill to do so and easier to clone just a few lines for this.

* Define code offsets in wasmtime-environ with `u32`

Don't use Cranelift's `binemit::CodeOffset` alias to define this field
type since the `wasmtime-environ` crate will be losing the
`cranelift-codegen` dependency soon.

* Commit to using `cranelift-entity` in Wasmtime

This commit removes the reexport of `cranelift-entity` from the
`wasmtime-environ` crate and instead directly depends on the
`cranelift-entity` crate in all referencing crates. The original reason
for the reexport was to make cranelift version bumps easier since it's
less versions to change, but nowadays we have a script to do that.
Otherwise this encourages crates to use whatever they want from
`cranelift-entity` since we'll always depend on the whole crate.

It's expected that the `cranelift-entity` crate will continue to be a
lean crate in dependencies and suitable for use at both runtime and
compile time. Consequently there's no need to avoid its usage in
Wasmtime at runtime, since "remove Cranelift at compile time" is
primarily about the `cranelift-codegen` crate.

* Remove most uses of `cranelift-codegen` in `wasmtime-environ`

There's only one final use remaining, which is the reexport of
`TrapCode`, which will get handled later.

* Limit the glob-reexport of `cranelift_wasm`

This commit removes the glob reexport of `cranelift-wasm` from the
`wasmtime-environ` crate. This is intended to explicitly define what
we're reexporting and is a transitionary step to curtail the amount of
dependencies taken on `cranelift-wasm` throughout the codebase. For
example some functions used by debuginfo mapping are better imported
directly from the crate since they're Cranelift-specific. Note that
this is intended to be a temporary state affairs, soon this reexport
will be gone entirely.

Additionally this commit reduces imports from `cranelift_wasm` and also
primarily imports from `crate::wasm` within `wasmtime-environ` to get a
better sense of what's imported from where and what will need to be
shared.

* Extract types from cranelift-wasm to cranelift-wasm-types

This commit creates a new crate called `cranelift-wasm-types` and
extracts type definitions from the `cranelift-wasm` crate into this new
crate. The purpose of this crate is to be a shared definition of wasm
types that can be shared both by compilers (like Cranelift) as well as
wasm runtimes (e.g. Wasmtime). This new `cranelift-wasm-types` crate
doesn't depend on `cranelift-codegen` and is the final step in severing
the unconditional dependency from Wasmtime to `cranelift-codegen`.

The final refactoring in this commit is to then reexport this crate from
`wasmtime-environ`, delete the `cranelift-codegen` dependency, and then
update all `use` paths to point to these new types.

The main change of substance here is that the `TrapCode` enum is
mirrored from Cranelift into this `cranelift-wasm-types` crate. While
this unfortunately results in three definitions (one more which is
non-exhaustive in Wasmtime itself) it's hopefully not too onerous and
ideally something we can patch up in the future.

* Get lightbeam compiling

* Remove unnecessary dependency

* Fix compile with uffd

* Update publish script

* Fix more uffd tests

* Rename cranelift-wasm-types to wasmtime-types

This reflects the purpose a bit more where it's types specifically
intended for Wasmtime and its support.

* Fix publish script

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