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Author SHA1 Message Date
Yury Delendik
e66f01b923 Update cranelift libraries to 0.28.0 2019-01-29 16:45:41 -08:00
Joel Martin
fdcb2184a8 Support 32-bit build. (#44) 
* Support 32-bit build.

Signatures/functions/imports/exports etc are defined as varuint32 in
the WebAssembly specification so use u32 rather than u64.

Decrease the static memory constants for 32-bit addressing mode so
that they fit within 32-bit memory constraints.

Conditionalize cmake compile of SignalHandlers.cpp so that -m32 is
passed when building 32-bit.

Add a no-op match for Reloc::X86CallPCRel4 during linking. This is
probably the wrong thing, but it allows the tests to pass. Using the
same logic from the Reloc::X86PCRel4 case did not work.
 2019-01-24 13:40:25 -08:00
Dan Gohman
00a4e93bcd Add a concept of "global exports". 
This adds a feature which allows one to look up an export by name
without knowing what module it's in -- `lookup_global_export` on an
`InstanceContents`.

The main expected use for this is to support APIs where module A
imports a function from module B, and module B needs to access module
A's memory. B can't import it from A in the normal way, because that
would create a dependency cycle. So for now, allow B to look up A's
exported memory dynamically with `lookup_global_export`.

In the future, with reference types and possibly host bindings, we'll be
able to pass references to memory as arguments, which will obviate the
need for this mechanism.
 2019-01-22 16:32:07 -08:00
Dan Gohman
dae04be948 Switch from hashmap_core to hashbrown. 
As suggested
[here](https://github.com/Amanieu/hashmap_core/pull/10#issuecomment-455866083).

This also allows us to re-enable the basic compile fuzz target.
 2019-01-22 13:41:04 -08:00
Dan Gohman
8769febdbd Formest with latest stable rustfmt. 2019-01-20 10:42:50 -08:00
buckle2000
01ed463c7a Change SignalHandlers.h to SignalHandlers.hpp 2019-01-14 21:30:25 -08:00
Dan Gohman
9fe08c9341 Tidy up pointer casting to avoid casts that change mutability. 2019-01-08 10:31:58 -08:00
Dan Gohman
0a2b0ee9b0 Mmap API tidying. 
Establish more clear expectations for who is expected to page-align what
and when.
 2019-01-06 10:08:40 -08:00
Dan Gohman
0826e32c9a Tidy up unnecessary return statements. 2019-01-05 16:23:04 -08:00
Dan Gohman
3143e22566 Move the creation of linear-memory guard pages into the mmap module. 
Create linear-memory pages as PROT_NONE and then make them accessible on
demand.
 2019-01-05 16:23:04 -08:00
Dan Gohman
3ac4269dc5 Add host_state() accessors to InstanceContents and VMContext too. 2019-01-04 17:24:14 -08:00
Dan Gohman
73b2c45313 Add a host_state field to Instance. 
This allows hosts to embed arbitrary state along with instances.
 2019-01-04 17:15:22 -08:00
Dan Gohman
3aef763046 Delete an unneeded comment. 2019-01-03 15:50:04 -08:00
Dan Gohman
6661228c86 Tidy up whitespace. 2019-01-03 14:44:30 -08:00
Dan Gohman
e876f0fb1d Add some Cargo.toml keywords. 2019-01-03 14:25:33 -08:00
Dan Gohman
35d7f78a11 Handle errors cleanly in the wast runner. 2019-01-03 14:16:48 -08:00
Dan Gohman
40acc1f340 Add crate version identifiers. 2019-01-03 14:16:48 -08:00
Dan Gohman
585bdac91e Use vec![0; size] instead of creating an empty Vec and resizing. 2019-01-03 14:16:48 -08:00
Dan Gohman
a41bc1fe1e Fix unused use warnings. 2019-01-03 14:16:48 -08:00
Dan Gohman
ca2fdc5ccb Update no_std support. 
This `no_std` support isn't complete though, as some dependencies
don't support it.
 2019-01-03 14:16:48 -08:00
Dan Gohman
f6c2fe7d2d Update to Rust 2018 Edition. 2019-01-03 12:58:11 -08:00
Dan Gohman
00a84672f7 Use Vec::with_capacity. 2019-01-03 12:37:14 -08:00
Dan Gohman
fdc66e130f Eliminate unneeded casts. 2019-01-03 12:05:32 -08:00
Dan Gohman
39770ec72c Minor code tidying. 2019-01-03 12:05:26 -08:00
Dan Gohman
701b1998e9 Avoid creating slices with null pointers. 2019-01-03 12:05:17 -08:00
Dan Gohman
57e183f5f8 Use TablePlan::for_table and MemoryPlan::for_memory instead of manual code. 2019-01-03 12:05:07 -08:00
Dan Gohman
8a5429ce74 Factor out functions for working with table and memory initializers. 2019-01-03 12:04:58 -08:00
Dan Gohman
747dbb23e7 Add fuzz targets for module instantiation. 2019-01-03 12:04:48 -08:00
Dan Gohman
df7724ce2b Update Cargo.toml authors fields. 2019-01-03 12:04:37 -08:00
Dan Gohman
2f04b78ecf Use cast::usize rather than as usize to avoid silent overflow. 2019-01-03 12:04:24 -08:00
Dan Gohman
529de7ca60 Tidy up unneeded '&'s. 2019-01-03 12:03:52 -08:00
Dan Gohman
c66a3c23f3 Tidy up some documentation comments. 2019-01-03 12:03:43 -08:00
Dan Gohman
3ce2127bfa Eliminate the intermediate "base" global variables. 2019-01-03 12:03:33 -08:00
Dan Gohman
3431122440 Update to bindgen 0.46. 2019-01-03 12:03:22 -08:00
Dan Gohman
1ae5c13b8c Signature ID loads are readonly. 2019-01-03 12:03:14 -08:00
Dan Gohman
8939d1252a Document that wasmtime-runtime is meant to be compiled for the target. 2019-01-03 12:02:57 -08:00
Dan Gohman
3270369a69 Restructure VMContext to eliminate a level of indirection. 2019-01-03 12:02:35 -08:00
Dan Gohman
ff6776fe10 Refactor instance accessor routines. 
This helps localize the unsafe code needed to access these fields.
 2019-01-03 11:49:25 -08:00
Dan Gohman
482a054c75 Move the signature_ids field first. 2019-01-03 11:49:15 -08:00
Dan Gohman
e8e8f453a4 Refactor out the code for creating the signature_ids base global value. 2019-01-03 11:49:04 -08:00
Dan Gohman
087b5b4dff Implement cross-instance indirect calls. 2019-01-03 11:48:53 -08:00
Dan Gohman
b646f9b4e0 Clarify a comment. 2019-01-03 11:48:43 -08:00
Dan Gohman
9d73123e3e Reformat a comment to fit within 100 columns. 2019-01-03 11:48:34 -08:00
Dan Gohman
bec724b501 Whitespace tidying. 2019-01-03 11:48:26 -08:00
Dan Gohman
b704f5ad30 Update to wasmparser 0.23.0. 2019-01-03 11:48:13 -08:00
Dan Gohman
63c9143e87 Update to bindgen 0.45. 2019-01-03 11:48:05 -08:00
Dan Gohman
7592c99f3b Refactor the compilation and instantiation pipeline. 
wasmtime-execute is now wasmtime-jit. Move `JITCode` and the TargetIsa
into a new `Compiler` type. `InstancePlus` is no more, with trampoline
functionality now handled by `Compiler`.
 2019-01-03 11:47:55 -08:00
Dan Gohman
450a279e18 Rename wasmtime's logfile names. 2019-01-03 11:47:40 -08:00
Dan Gohman
f997cde2db Don't create Static memories larger than the Tunables' static bound size. 2018-12-24 22:08:36 -08:00
Dan Gohman
57a1618742 Catch EXCEPTION_INT_OVERFLOW exceptions too. 2018-12-24 22:08:36 -08:00