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82 Commits

Author SHA1 Message Date
Dan Gohman
a5a23d8c4a Factor WasmNamespace out of lib/wast and into lib/execute as Namespace. 
This makes it usable for things other than just wast tests.
 2018-12-24 22:08:36 -08:00
Dan Gohman
71c0142cd4 Rename the address field of Table/Memory/Global exports to definition. 
For functions, `address` makes sense because it's the address of the
function. Bt for Table/Memory/Global, it points to a `VM*Definition` field.
 2018-12-24 18:20:15 -08:00
Dan Gohman
c4e10227de Tidy up trap-handling code. 2018-12-19 15:14:30 -08:00
Dan Gohman
4d4ecfd812 Bump version to 0.1.0 2018-12-17 13:45:12 -08:00
Dan Gohman
66120cdede Prune unnecessary dependencies. 2018-12-14 08:09:01 -08:00
Dan Gohman
5c2395ee32 Elaborate on a TODO comment. 2018-12-12 14:16:46 -08:00
Dan Gohman
eba0f9925a no_std fixes. 2018-12-12 13:00:53 -08:00
Dan Gohman
bc4333d857 Implement assert_malformed and assert_invalid. 2018-12-12 12:28:51 -08:00
Dan Gohman
3f24098edc Implement the remaining valid spec tests. 
And lots of other miscellaneous changes. Rename InstanceWorld to
InstancePlus and reorganize its contents. This still isn't a great name,
but at least now it has a clear purpose.
 2018-12-12 11:49:02 -08:00
Dan Gohman
6dd39dee6a Update to Cranelift 0.26.0. 2018-12-11 13:21:03 -08:00
Dan Gohman
56850d481d Initial support for function, table, memory, and global imports. 2018-12-11 12:49:14 -08:00
Dan Gohman
93f33141e9 Introduce VMFunctionBody to add extra type safety. 2018-12-08 21:00:42 -05:00
Dan Gohman
10bb311aea Reorganize unsafe code. 2018-12-08 21:00:42 -05:00
Dan Gohman
7dcca6be5b Improve error handling, and start refactoring Instance. 
Introduce proper error handling in several places, and perform a first
pass at refactoring Instance to make it easier to use.
 2018-12-07 23:51:23 -05:00
Dan Gohman
dca7729313 Improve error handling and misc cleanups. 2018-12-06 23:03:12 -05:00
Dan Gohman
08488591a9 Fix clippy warning namespaces. 2018-12-06 23:02:42 -05:00
Dan Gohman
06de604729 Rename InvokeOutcome to ActionOutcome and move it to its own module. 2018-12-06 23:02:33 -05:00
Dan Gohman
d9b4bd1de8 Support imports. 2018-12-06 23:02:19 -05:00
Dan Gohman
8170a9db79 Update to the rustfmt in rust 1.31, which is now stable. 2018-12-06 22:59:46 -05:00
Dan Gohman
96941a59af Implement call_indirect signature checking. 
The call_indirect.wast spec test now passes.
 2018-12-05 11:32:35 -05:00
Dan Gohman
57635eb62b Implement minimal call_indirect signature checking. 2018-12-05 11:32:28 -05:00
Dan Gohman
0a2ecf5a1e On Darwin, guard page accesses are raised as SIGBUS. 2018-12-05 02:25:34 -05:00
Dan Gohman
cfd28a7bc5 Temporarily disable use of Mach ports for trap handling on Darwin. 2018-12-05 02:25:34 -05:00
Dan Gohman
7faa15d7ac More infrastructure. 
Improve handling of memory.grow/size, add a standalone wast runner,
test harness improvements.
 2018-12-05 02:25:34 -05:00
Dan Gohman
83f8a31010 Convert the wast test harness into a crate. 
This uses a build.rs file to collect all the wast tests and create
individual `#[test]` lines for them, so that `cargo test` can run them
in parallel.
 2018-12-05 02:25:34 -05:00
Dan Gohman
4c47ce9b53 Add support for math libcalls. 2018-12-05 02:25:34 -05:00
Dan Gohman
bd69768e0d Improve infrastructure. 
Do more encapsulation of raw pointers, use more PrimaryMaps instead of
Vecs, add a table.rs for managing table storage.
 2018-12-05 02:25:34 -05:00
Dan Gohman
fe1643733b Remove use of offset_of! from wasmtime-environ. 
wasmtime-environ is meant to support cross compilation, so it shouldn't
have dependencies on target layout of structs. This moves the layout
back into wasmtime-execute, and adds a system of asserts for checking
that wasmtime-environ's offsets stay in sync.
 2018-12-05 02:25:34 -05:00
Dan Gohman
8dbd4b8d7c Start a wast testing harness and add some tests. 
This implements a minimal wast testing harness in tests/wast.rs, which
runs the wast tests under tests/wast.

It also adds tests for trapping in a variety of ways, and fixes several
bugs exposed by those tests.
 2018-12-05 02:25:34 -05:00
Dan Gohman
a6b54330c0 Switch Darwin to use PC-redirection for calling the Unwind function. 2018-12-05 02:25:34 -05:00
Dan Gohman
872f7a10f4 Use MAP_ANON instead of MAP_ANONYMOUS. 2018-12-05 02:25:34 -05:00
Dan Gohman
f44fe25f9c Rewrite linear memory handling in terms of simple mmap/VirtualAlloc. 
The memmap crate doesn't make it straightforward to have part of the
region be writeable and part readonly. Since this is a fairly boutique
use case, and we don't need all that much code, just use the low-level
APIs directly.

Also, introduce a concept of "tunables" for adjusting the parameters of
the runtime.
 2018-12-05 02:25:34 -05:00
Dan Gohman
02a3684a3f Update to bindgen 0.44. 2018-11-30 09:24:33 -08:00
Dan Gohman
b7d43edfd3 Be more careful about integer overflow when computing relocs. 2018-11-29 10:28:18 -08:00
Dan Gohman
f7dc961d2c Fix some clippy warnings. 2018-11-29 10:27:49 -08:00
Dan Gohman
5ae48b06e1 Fix the pthread_detach assert on Darwin. 2018-11-29 06:22:39 -08:00
Dan Gohman
38acc069fa Fix compilation errors on Darwin. 2018-11-29 06:01:25 -08:00
Dan Gohman
adb76ba9f1 Avoid casting to/from greg_t, which doesn't work consistently across platforms. 2018-11-29 05:59:17 -08:00
Dan Gohman
216c0ce14e Fix the scope of the ScopeGuard in call_wasm. 2018-11-29 05:59:17 -08:00
Dan Gohman
862d859587 Add a LICENSE file to each crate. 2018-11-29 05:57:32 -08:00
Dan Gohman
2a760ae5e8 Add tests that trap, and fix handling of SIGFPE on x86. 2018-11-27 06:38:28 -08:00
Dan Gohman
35627cf37f Implement wasm trap handlers. (#27) 
* Implement wasm trap handlers.

This adds signal handlers based on SpiderMonkey's signal-handler code.
The functionality for looking up the trap code and wasm bytecode offset
isn't yet implemented, but this is a start.

I considered rewriting this code in Rust, but decided against it for now
as C++ allows us to talk to the relevant OS APIs more directly.

Fixes #15.

* Compile with -std=c++11.

* Refactor InstallState initialization.

* Compile with -fPIC.

* Factor out the code for calling a wasm function with a given index.

* Fix unclear wording in a comment.
 2018-11-27 06:05:58 -08:00
Geoffroy Couprie
bf5a06bc95 separate the context intialization from the function execution (#21) 
the start function is called from the initialization phase
 2018-11-27 05:33:56 -08:00
Dan Gohman
95fba6a9de Update to Cranelift 0.25. 2018-11-26 22:50:07 -08:00
Dan Gohman
e8201d0f93 Begin work on no_std support. 
This adds no_std support to a bunch of things, but more work is needed.
 2018-11-26 04:52:39 -08:00
Dan Gohman
74ccddcd64 Update to Cranelift 0.24. 2018-11-25 05:08:29 -08:00
Dan Gohman
0a0108f959 Update to Cranelift 0.22. 2018-11-25 05:08:29 -08:00
Geoffroy Couprie
7fca0792dd add a way to provide imported functions during relocation 
They are provided as a closure taking the module (&str) and function name (&str) as arguments,
returning an address (Option<isize>)
 2018-11-16 09:56:36 -08:00
Dan Gohman
5a96e022db Update to the rustfmt in rust 1.29, which is now stable. 2018-10-09 14:36:48 -07:00
Dan Gohman
ecae909b9e Add the "wasm" category in Cargo.toml files. 2018-08-28 21:03:07 -07:00