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Merge remote-tracking branch 'origin/master' into command/pyodide

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This commit is contained in:
Jesús Leganés-Combarro 'piranna 2019-06-02 14:10:25 +02:00
commit 222b582207
57 changed files with 1480 additions and 1119 deletions
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1
.appveyor.yml
View File

@ -64,6 +64,7 @@ build_script:
- rename target wapm-cli-target - rename target wapm-cli-target
- cd .. - cd ..
- move wapm-cli\wapm-cli-target wapm-cli-target - move wapm-cli\wapm-cli-target wapm-cli-target
- cargo build --release --manifest-path lib/runtime-c-api/Cargo.toml
test_script: test_script:
- cargo test --manifest-path lib/spectests/Cargo.toml --features clif - cargo test --manifest-path lib/spectests/Cargo.toml --features clif

14
.circleci/config.yml
View File

@ -191,6 +191,11 @@ jobs:
echo "${CIRCLE_TAG}" >> artifacts/git_version echo "${CIRCLE_TAG}" >> artifacts/git_version
make build-install make build-install
cp ./wasmer.tar.gz ./artifacts/$(./binary-name.sh) cp ./wasmer.tar.gz ./artifacts/$(./binary-name.sh)
- run:
name: Dynamic library
command: |
cargo build --release --manifest-path lib/runtime-c-api/Cargo.toml
cp target/release/libwasmer_runtime_c_api.so ./artifacts
- persist_to_workspace: - persist_to_workspace:
root: . root: .
paths: paths:
@ -278,6 +283,13 @@ jobs:
cp ./wasmer.tar.gz ./artifacts/$(./binary-name.sh) cp ./wasmer.tar.gz ./artifacts/$(./binary-name.sh)
# VERSION=$(cargo pkgid | cut -d# -f2 | cut -d: -f2) # VERSION=$(cargo pkgid | cut -d# -f2 | cut -d: -f2)
# echo "${VERSION}" >> artifacts/version # echo "${VERSION}" >> artifacts/version
- run:
name: Generate dynamic library for the runtime C API
command: |
export PATH="$HOME/.cargo/bin:$PATH"
cargo build --release --manifest-path lib/runtime-c-api/Cargo.toml
install_name_tool -id "@rpath/libwasmer_runtime_c_api.dylib" target/release/libwasmer_runtime_c_api.dylib
cp target/release/libwasmer_runtime_c_api.dylib ./artifacts
- persist_to_workspace: - persist_to_workspace:
root: . root: .
paths: paths:
@ -351,7 +363,7 @@ jobs:
# VERSION_TAG=$(git describe --exact-match --tags) # VERSION_TAG=$(git describe --exact-match --tags)
#if [ "$VERSION" == "$VERSION_TAG" ]; then #if [ "$VERSION" == "$VERSION_TAG" ]; then
# echo "Versions match, publishing to Github" # echo "Versions match, publishing to Github"
ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -soft ${VERSION} ./artifacts/ ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} ${VERSION} ./artifacts/ || true
#else #else
# echo "Versions don't match. Wasmer output version (wasmer --version) is ${VERSION} while Git tag is ${VERSION_TAG}" # echo "Versions don't match. Wasmer output version (wasmer --version) is ${VERSION} while Git tag is ${VERSION_TAG}"
# exit 1 # exit 1

7
ARCHITECTURE.md
View File

@ -2,7 +2,7 @@
Wasmer uses the following components: Wasmer uses the following components:
- [Cranelift](https://github.com/cranestation/cranelift): for compiling Wasm binaries to machine code - Compiler backends: for compiling Wasm binaries to machine code ([more info here](https://github.com/wasmerio/wasmer/tree/master/lib#backends))
- [wabt](https://github.com/pepyakin/wabt-rs): for transforming `.wast` files to `.wasm` and running WebAssembly spec tests - [wabt](https://github.com/pepyakin/wabt-rs): for transforming `.wast` files to `.wasm` and running WebAssembly spec tests
- [wasmparser](https://github.com/yurydelendik/wasmparser.rs): for parsing the `.wasm` files and translating them into WebAssembly modules - [wasmparser](https://github.com/yurydelendik/wasmparser.rs): for parsing the `.wasm` files and translating them into WebAssembly modules
@ -67,3 +67,8 @@ Once that's finished, we will have a `Instance` function that will be ready to e
Wasmer's Emscripten integration tries to wrap (and emulate) all the different syscalls that Emscripten needs. Wasmer's Emscripten integration tries to wrap (and emulate) all the different syscalls that Emscripten needs.
We provide this integration by filling the `import_object` with the Emscripten functions, while instantiating the WebAssembly Instance. We provide this integration by filling the `import_object` with the Emscripten functions, while instantiating the WebAssembly Instance.
## WASI
Wasmer's WASI integration implements all the different syscalls that WASI needs.
We provide this integration by filling the `import_object` with the WASI functions, while instantiating the WebAssembly Instance.

2
CHANGELOG.md
View File

@ -6,6 +6,8 @@ Blocks of changes will separated by version increments.
## **[Unreleased]** ## **[Unreleased]**
- [#476](https://github.com/wasmerio/wasmer/pull/476) Fix bug with wasi::environ_get, fix off by one error in wasi::environ_sizes_get
- [#470](https://github.com/wasmerio/wasmer/pull/470) Add mapdir support to Emscripten, implement getdents for Unix
- [#467](https://github.com/wasmerio/wasmer/pull/467) `wasmer_instantiate` returns better error messages in the runtime C API - [#467](https://github.com/wasmerio/wasmer/pull/467) `wasmer_instantiate` returns better error messages in the runtime C API
- [#463](https://github.com/wasmerio/wasmer/pull/463) Fix bug in WASI path_open allowing one level above preopened dir to be accessed - [#463](https://github.com/wasmerio/wasmer/pull/463) Fix bug in WASI path_open allowing one level above preopened dir to be accessed
- [#461](https://github.com/wasmerio/wasmer/pull/461) Prevent passing negative lengths in various places in the runtime C API - [#461](https://github.com/wasmerio/wasmer/pull/461) Prevent passing negative lengths in various places in the runtime C API

340
Cargo.lock generated
View File

@ -34,27 +34,26 @@ name = "atty"
version = "0.2.11" version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)", "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
"termion 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)", "termion 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)", "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
name = "autocfg" name = "autocfg"
version = "0.1.2" version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]] [[package]]
name = "backtrace" name = "backtrace"
version = "0.3.15" version = "0.3.26"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)", "backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)", "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)", "rustc-demangle 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
@ -62,8 +61,8 @@ name = "backtrace-sys"
version = "0.1.28" version = "0.1.28"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)", "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)", "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
@ -73,7 +72,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)", "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)", "cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
"clang-sys 0.26.4 (registry+https://github.com/rust-lang/crates.io-index)", "clang-sys 0.26.4 (registry+https://github.com/rust-lang/crates.io-index)",
"clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)", "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
"env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)", "env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -121,7 +120,7 @@ name = "capstone-sys"
version = "0.9.1" version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)", "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
@ -138,17 +137,17 @@ dependencies = [
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)", "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)", "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)", "quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)", "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)", "serde_derive 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)", "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)", "syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
"tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)", "tempfile 3.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
"toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)", "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
name = "cc" name = "cc"
version = "1.0.36" version = "1.0.37"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]] [[package]]
@ -161,7 +160,7 @@ dependencies = [
[[package]] [[package]]
name = "cfg-if" name = "cfg-if"
version = "0.1.7" version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]] [[package]]
@ -170,8 +169,8 @@ version = "0.26.4"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)", "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)", "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
"libloading 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)", "libloading 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
@ -198,10 +197,10 @@ dependencies = [
[[package]] [[package]]
name = "cmake" name = "cmake"
version = "0.1.39" version = "0.1.40"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [ dependencies = [
"cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)", "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
@ -212,67 +211,67 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]] [[package]]
name = "cranelift-bforest" name = "cranelift-bforest"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
"cranelift-entity 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-entity 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
] ]
[[package]] [[package]]
name = "cranelift-codegen" name = "cranelift-codegen"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
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"cranelift-codegen-meta 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-codegen-meta 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"cranelift-entity 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-entity 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)", "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)", "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)", "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"target-lexicon 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)", "target-lexicon 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
name = "cranelift-codegen-meta" name = "cranelift-codegen-meta"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
"cranelift-entity 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-entity 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
] ]
[[package]] [[package]]
name = "cranelift-entity" name = "cranelift-entity"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
[[package]] [[package]]
name = "cranelift-frontend" name = "cranelift-frontend"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
"cranelift-codegen 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-codegen 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)", "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"target-lexicon 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)", "target-lexicon 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
name = "cranelift-native" name = "cranelift-native"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
"cranelift-codegen 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-codegen 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"raw-cpuid 6.1.0 (registry+https://github.com/rust-lang/crates.io-index)", "raw-cpuid 6.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"target-lexicon 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)", "target-lexicon 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
] ]
[[package]] [[package]]
name = "cranelift-wasm" name = "cranelift-wasm"
version = "0.30.0" version = "0.30.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb#84ec31b0fdfc10db491ef950815ee2961db057cb"
dependencies = [ dependencies = [
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"cranelift-codegen 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-codegen 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"cranelift-entity 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-entity 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"cranelift-frontend 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)", "cranelift-frontend 0.30.0 (git+https://github.com/wasmerio/cranelift.git?rev=84ec31b0fdfc10db491ef950815ee2961db057cb)",
"failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)", "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)", "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)", "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@ -291,17 +290,17 @@ dependencies = [
"csv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)", "csv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
"itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)", "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)", "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)", "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
"num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)", "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)", "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)", "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xoshiro 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)", "rand_xoshiro 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)", "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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1
Makefile
View File

@ -51,6 +51,7 @@ test:
cargo test --all --exclude wasmer-runtime-c-api --exclude wasmer-emscripten --exclude wasmer-spectests --exclude wasmer-singlepass-backend --exclude wasmer-wasi -- $(runargs) cargo test --all --exclude wasmer-runtime-c-api --exclude wasmer-emscripten --exclude wasmer-spectests --exclude wasmer-singlepass-backend --exclude wasmer-wasi -- $(runargs)
# cargo test --all --exclude wasmer-emscripten -- --test-threads=1 $(runargs) # cargo test --all --exclude wasmer-emscripten -- --test-threads=1 $(runargs)
cargo test --manifest-path lib/spectests/Cargo.toml --features clif cargo test --manifest-path lib/spectests/Cargo.toml --features clif
@if [ ! -z "${CIRCLE_JOB}" ]; then rm -f /home/circleci/project/target/debug/deps/libcranelift_wasm* && rm -f /Users/distiller/project/target/debug/deps/libcranelift_wasm*; fi;
cargo test --manifest-path lib/spectests/Cargo.toml --features llvm cargo test --manifest-path lib/spectests/Cargo.toml --features llvm
cargo test --manifest-path lib/runtime/Cargo.toml --features llvm cargo test --manifest-path lib/runtime/Cargo.toml --features llvm
cargo build -p wasmer-runtime-c-api cargo build -p wasmer-runtime-c-api

3
README.md
View File

@ -28,11 +28,12 @@ curl https://get.wasmer.io -sSfL | sh
Wasmer runtime can also be embedded in different languages, so you can use WebAssembly anywhere ✨: Wasmer runtime can also be embedded in different languages, so you can use WebAssembly anywhere ✨:
* [**Rust**](https://github.com/wasmerio/wasmer-rust-example) * [🦀 **Rust**](https://github.com/wasmerio/wasmer-rust-example)
* [**C/C++**](https://github.com/wasmerio/wasmer-c-api) * [**C/C++**](https://github.com/wasmerio/wasmer-c-api)
* [**🐘 PHP**](https://github.com/wasmerio/php-ext-wasm) * [**🐘 PHP**](https://github.com/wasmerio/php-ext-wasm)
* [**🐍 Python**](https://github.com/wasmerio/python-ext-wasm) * [**🐍 Python**](https://github.com/wasmerio/python-ext-wasm)
* [**💎 Ruby**](https://github.com/wasmerio/ruby-ext-wasm) * [**💎 Ruby**](https://github.com/wasmerio/ruby-ext-wasm)
* [**🐹 Go**](https://github.com/wasmerio/go-ext-wasm)
### Usage ### Usage

13
lib/clif-backend/Cargo.toml
View File

@ -9,13 +9,14 @@ edition = "2018"
[dependencies] [dependencies]
wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" } wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" }
cranelift-native = "0.30.0" cranelift-native = { git = "https://github.com/wasmerio/cranelift.git", rev = "84ec31b0fdfc10db491ef950815ee2961db057cb" }
cranelift-codegen = "0.30.0" cranelift-codegen = { git = "https://github.com/wasmerio/cranelift.git", rev = "84ec31b0fdfc10db491ef950815ee2961db057cb" }
cranelift-entity = "0.30.0" cranelift-entity = { git = "https://github.com/wasmerio/cranelift.git", rev = "84ec31b0fdfc10db491ef950815ee2961db057cb" }
cranelift-wasm = "0.30.0" cranelift-frontend = { git = "https://github.com/wasmerio/cranelift.git", rev = "84ec31b0fdfc10db491ef950815ee2961db057cb" }
cranelift-wasm = { git = "https://github.com/wasmerio/cranelift.git", rev = "84ec31b0fdfc10db491ef950815ee2961db057cb" }
hashbrown = "0.1" hashbrown = "0.1"
target-lexicon = "0.3.0" target-lexicon = "0.4.0"
wasmparser = "0.30.0" wasmparser = "0.29.2"
byteorder = "1" byteorder = "1"
nix = "0.13.0" nix = "0.13.0"
libc = "0.2.49" libc = "0.2.49"

712
lib/clif-backend/src/func_env.rs → lib/clif-backend/src/code.rs
View File

@ -1,51 +1,405 @@
use crate::{module::Converter, module_env::ModuleEnv, relocation::call_names}; // Parts of the following code are Copyright 2018 Cranelift Developers
use cranelift_codegen::{ // and subject to the license https://github.com/CraneStation/cranelift/blob/c47ca7bafc8fc48358f1baa72360e61fc1f7a0f2/cranelift-wasm/LICENSE
cursor::FuncCursor,
ir::{self, InstBuilder}, use crate::{
isa, cache::CacheGenerator, get_isa, module, module::Converter, relocation::call_names,
resolver::FuncResolverBuilder, signal::Caller, trampoline::Trampolines,
}; };
use cranelift_entity::EntityRef;
use cranelift_wasm::{self, FuncEnvironment, ModuleEnvironment}; use cranelift_codegen::entity::EntityRef;
use cranelift_codegen::ir::{self, Ebb, Function, InstBuilder};
use cranelift_codegen::isa::CallConv;
use cranelift_codegen::{cursor::FuncCursor, isa};
use cranelift_frontend::{FunctionBuilder, Position, Variable};
use cranelift_wasm::{self, FuncTranslator};
use cranelift_wasm::{get_vmctx_value_label, translate_operator};
use cranelift_wasm::{FuncEnvironment, ReturnMode, WasmError};
use std::mem; use std::mem;
use std::sync::{Arc, RwLock};
use wasmer_runtime_core::error::CompileError;
use wasmer_runtime_core::{ use wasmer_runtime_core::{
backend::{Backend, CacheGen, Token},
cache::{Artifact, Error as CacheError},
codegen::*,
memory::MemoryType, memory::MemoryType,
structures::TypedIndex, module::{ModuleInfo, ModuleInner},
types::{FuncIndex, GlobalIndex, LocalOrImport, MemoryIndex, TableIndex}, structures::{Map, TypedIndex},
types::{
FuncIndex, FuncSig, GlobalIndex, LocalFuncIndex, LocalOrImport, MemoryIndex, SigIndex,
TableIndex,
},
vm, vm,
}; };
use wasmparser::Type as WpType;
pub struct FuncEnv<'env, 'module, 'isa> { pub struct CraneliftModuleCodeGenerator {
env: &'env ModuleEnv<'module, 'isa>, isa: Box<isa::TargetIsa>,
signatures: Option<Arc<Map<SigIndex, FuncSig>>>,
pub clif_signatures: Map<SigIndex, ir::Signature>,
function_signatures: Option<Arc<Map<FuncIndex, SigIndex>>>,
functions: Vec<CraneliftFunctionCodeGenerator>,
} }
impl<'env, 'module, 'isa> FuncEnv<'env, 'module, 'isa> { impl ModuleCodeGenerator<CraneliftFunctionCodeGenerator, Caller, CodegenError>
pub fn new(env: &'env ModuleEnv<'module, 'isa>) -> Self { for CraneliftModuleCodeGenerator
Self { env } {
fn new() -> Self {
let isa = get_isa();
CraneliftModuleCodeGenerator {
isa,
clif_signatures: Map::new(),
functions: vec![],
function_signatures: None,
signatures: None,
}
} }
/// Creates a signature with VMContext as the last param fn backend_id() -> Backend {
pub fn generate_signature( Backend::Cranelift
&self, }
clif_sig_index: cranelift_wasm::SignatureIndex,
) -> ir::Signature {
// Get signature
let mut signature = self.env.signatures[Converter(clif_sig_index).into()].clone();
// Add the vmctx parameter type to it fn check_precondition(&mut self, _module_info: &ModuleInfo) -> Result<(), CodegenError> {
signature.params.insert( Ok(())
0, }
ir::AbiParam::special(self.pointer_type(), ir::ArgumentPurpose::VMContext),
fn next_function(
&mut self,
module_info: Arc<RwLock<ModuleInfo>>,
) -> Result<&mut CraneliftFunctionCodeGenerator, CodegenError> {
// define_function_body(
let func_translator = FuncTranslator::new();
let func_index = LocalFuncIndex::new(self.functions.len());
let name = ir::ExternalName::user(0, func_index.index() as u32);
let sig = generate_signature(
self,
self.get_func_type(
&module_info.read().unwrap(),
Converter(func_index.convert_up(&module_info.read().unwrap())).into(),
),
); );
// Return signature let func = ir::Function::with_name_signature(name, sig);
signature
//func_translator.translate(body_bytes, body_offset, &mut func, &mut func_env)?;
let mut func_env = CraneliftFunctionCodeGenerator {
func,
func_translator,
next_local: 0,
clif_signatures: self.clif_signatures.clone(),
module_info: Arc::clone(&module_info),
target_config: self.isa.frontend_config().clone(),
position: Position::default(),
};
debug_assert_eq!(func_env.func.dfg.num_ebbs(), 0, "Function must be empty");
debug_assert_eq!(func_env.func.dfg.num_insts(), 0, "Function must be empty");
let mut builder = FunctionBuilder::new(
&mut func_env.func,
&mut func_env.func_translator.func_ctx,
&mut func_env.position,
);
// TODO srcloc
//builder.set_srcloc(cur_srcloc(&reader));
let entry_block = builder.create_ebb();
builder.append_ebb_params_for_function_params(entry_block);
builder.switch_to_block(entry_block); // This also creates values for the arguments.
builder.seal_block(entry_block);
// Make sure the entry block is inserted in the layout before we make any callbacks to
// `environ`. The callback functions may need to insert things in the entry block.
builder.ensure_inserted_ebb();
declare_wasm_parameters(&mut builder, entry_block);
// Set up the translation state with a single pushed control block representing the whole
// function and its return values.
let exit_block = builder.create_ebb();
builder.append_ebb_params_for_function_returns(exit_block);
func_env
.func_translator
.state
.initialize(&builder.func.signature, exit_block);
#[cfg(feature = "debug")]
{
use cranelift_codegen::cursor::{Cursor, FuncCursor};
use cranelift_codegen::ir::InstBuilder;
let entry_ebb = func.layout.entry_block().unwrap();
let ebb = func.dfg.make_ebb();
func.layout.insert_ebb(ebb, entry_ebb);
let mut pos = FuncCursor::new(&mut func).at_first_insertion_point(ebb);
let params = pos.func.dfg.ebb_params(entry_ebb).to_vec();
let new_ebb_params: Vec<_> = params
.iter()
.map(|&param| {
pos.func
.dfg
.append_ebb_param(ebb, pos.func.dfg.value_type(param))
})
.collect();
let start_debug = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("strtdbug");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let end_debug = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![ir::AbiParam::special(
ir::types::I64,
ir::ArgumentPurpose::VMContext,
)],
returns: vec![],
});
let name = ir::ExternalName::testcase("enddbug");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let i32_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("i32print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let i64_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I64),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("i64print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let f32_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::F32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("f32print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let f64_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::F64),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("f64print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let vmctx = pos
.func
.special_param(ir::ArgumentPurpose::VMContext)
.expect("missing vmctx parameter");
let func_index = pos.ins().iconst(
ir::types::I32,
func_index.index() as i64 + self.module.info.imported_functions.len() as i64,
);
pos.ins().call(start_debug, &[vmctx, func_index]);
for param in new_ebb_params.iter().cloned() {
match pos.func.dfg.value_type(param) {
ir::types::I32 => pos.ins().call(i32_print, &[vmctx, param]),
ir::types::I64 => pos.ins().call(i64_print, &[vmctx, param]),
ir::types::F32 => pos.ins().call(f32_print, &[vmctx, param]),
ir::types::F64 => pos.ins().call(f64_print, &[vmctx, param]),
_ => unimplemented!(),
};
}
pos.ins().call(end_debug, &[vmctx]);
pos.ins().jump(entry_ebb, new_ebb_params.as_slice());
}
self.functions.push(func_env);
Ok(self.functions.last_mut().unwrap())
}
fn finalize(
self,
module_info: &ModuleInfo,
) -> Result<(Caller, Box<dyn CacheGen>), CodegenError> {
let mut func_bodies: Map<LocalFuncIndex, ir::Function> = Map::new();
for f in self.functions.into_iter() {
func_bodies.push(f.func);
}
let (func_resolver_builder, handler_data) =
FuncResolverBuilder::new(&*self.isa, func_bodies, module_info)?;
let trampolines = Arc::new(Trampolines::new(&*self.isa, module_info));
let (func_resolver, backend_cache) = func_resolver_builder.finalize(
&self.signatures.as_ref().unwrap(),
Arc::clone(&trampolines),
handler_data.clone(),
)?;
let cache_gen = Box::new(CacheGenerator::new(
backend_cache,
Arc::clone(&func_resolver.memory),
));
Ok((
Caller::new(handler_data, trampolines, func_resolver),
cache_gen,
))
}
fn feed_signatures(&mut self, signatures: Map<SigIndex, FuncSig>) -> Result<(), CodegenError> {
self.signatures = Some(Arc::new(signatures));
let call_conv = self.isa.frontend_config().default_call_conv;
for (_sig_idx, func_sig) in self.signatures.as_ref().unwrap().iter() {
self.clif_signatures
.push(convert_func_sig(func_sig, call_conv));
}
Ok(())
}
fn feed_function_signatures(
&mut self,
assoc: Map<FuncIndex, SigIndex>,
) -> Result<(), CodegenError> {
self.function_signatures = Some(Arc::new(assoc));
Ok(())
}
fn feed_import_function(&mut self) -> Result<(), CodegenError> {
Ok(())
}
unsafe fn from_cache(cache: Artifact, _: Token) -> Result<ModuleInner, CacheError> {
module::Module::from_cache(cache)
} }
} }
impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> { fn convert_func_sig(sig: &FuncSig, call_conv: CallConv) -> ir::Signature {
ir::Signature {
params: sig
.params()
.iter()
.map(|params| Converter(*params).into())
.collect::<Vec<_>>(),
returns: sig
.returns()
.iter()
.map(|returns| Converter(*returns).into())
.collect::<Vec<_>>(),
call_conv,
}
}
impl From<CompileError> for CodegenError {
fn from(other: CompileError) -> CodegenError {
CodegenError {
message: format!("{:?}", other),
}
}
}
impl From<WasmError> for CodegenError {
fn from(other: WasmError) -> CodegenError {
CodegenError {
message: format!("{:?}", other),
}
}
}
pub struct CraneliftFunctionCodeGenerator {
func: Function,
func_translator: FuncTranslator,
next_local: usize,
pub clif_signatures: Map<SigIndex, ir::Signature>,
module_info: Arc<RwLock<ModuleInfo>>,
target_config: isa::TargetFrontendConfig,
position: Position,
}
pub struct FunctionEnvironment {
module_info: Arc<RwLock<ModuleInfo>>,
target_config: isa::TargetFrontendConfig,
clif_signatures: Map<SigIndex, ir::Signature>,
}
impl FuncEnvironment for FunctionEnvironment {
/// Gets configuration information needed for compiling functions /// Gets configuration information needed for compiling functions
fn target_config(&self) -> isa::TargetFrontendConfig { fn target_config(&self) -> isa::TargetFrontendConfig {
self.env.target_config() self.target_config
} }
/// Gets native pointers types. /// Gets native pointers types.
@ -68,14 +422,16 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
&mut self, &mut self,
func: &mut ir::Function, func: &mut ir::Function,
clif_global_index: cranelift_wasm::GlobalIndex, clif_global_index: cranelift_wasm::GlobalIndex,
) -> cranelift_wasm::GlobalVariable { ) -> cranelift_wasm::WasmResult<cranelift_wasm::GlobalVariable> {
let global_index: GlobalIndex = Converter(clif_global_index).into(); let global_index: GlobalIndex = Converter(clif_global_index).into();
// Create VMContext value. // Create VMContext value.
let vmctx = func.create_global_value(ir::GlobalValueData::VMContext); let vmctx = func.create_global_value(ir::GlobalValueData::VMContext);
let ptr_type = self.pointer_type(); let ptr_type = self.pointer_type();
let local_global_addr = match global_index.local_or_import(&self.env.module.info) { let (local_global_addr, ty) = match global_index
.local_or_import(&self.module_info.read().unwrap())
{
LocalOrImport::Local(local_global_index) => { LocalOrImport::Local(local_global_index) => {
let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load { let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load {
base: vmctx, base: vmctx,
@ -92,12 +448,19 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
global_type: ptr_type, global_type: ptr_type,
}); });
func.create_global_value(ir::GlobalValueData::Load { let ty = self.module_info.read().unwrap().globals[local_global_index]
base: local_global_ptr_ptr, .desc
offset: 0.into(), .ty;
global_type: ptr_type,
readonly: true, (
}) func.create_global_value(ir::GlobalValueData::Load {
base: local_global_ptr_ptr,
offset: 0.into(),
global_type: ptr_type,
readonly: true,
}),
ty,
)
} }
LocalOrImport::Import(import_global_index) => { LocalOrImport::Import(import_global_index) => {
let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load { let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load {
@ -115,20 +478,27 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
global_type: ptr_type, global_type: ptr_type,
}); });
func.create_global_value(ir::GlobalValueData::Load { let ty = self.module_info.read().unwrap().imported_globals[import_global_index]
base: local_global_ptr_ptr, .1
offset: 0.into(), .ty;
global_type: ptr_type,
readonly: true, (
}) func.create_global_value(ir::GlobalValueData::Load {
base: local_global_ptr_ptr,
offset: 0.into(),
global_type: ptr_type,
readonly: true,
}),
ty,
)
} }
}; };
cranelift_wasm::GlobalVariable::Memory { Ok(cranelift_wasm::GlobalVariable::Memory {
gv: local_global_addr, gv: local_global_addr,
offset: (vm::LocalGlobal::offset_data() as i32).into(), offset: (vm::LocalGlobal::offset_data() as i32).into(),
ty: self.env.get_global(clif_global_index).ty, ty: Converter(ty).into(),
} })
} }
/// Sets up the necessary preamble definitions in `func` to access the linear memory identified /// Sets up the necessary preamble definitions in `func` to access the linear memory identified
@ -139,14 +509,14 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
&mut self, &mut self,
func: &mut ir::Function, func: &mut ir::Function,
clif_mem_index: cranelift_wasm::MemoryIndex, clif_mem_index: cranelift_wasm::MemoryIndex,
) -> ir::Heap { ) -> cranelift_wasm::WasmResult<ir::Heap> {
let mem_index: MemoryIndex = Converter(clif_mem_index).into(); let mem_index: MemoryIndex = Converter(clif_mem_index).into();
// Create VMContext value. // Create VMContext value.
let vmctx = func.create_global_value(ir::GlobalValueData::VMContext); let vmctx = func.create_global_value(ir::GlobalValueData::VMContext);
let ptr_type = self.pointer_type(); let ptr_type = self.pointer_type();
let (local_memory_ptr_ptr, description) = let (local_memory_ptr_ptr, description) =
match mem_index.local_or_import(&self.env.module.info) { match mem_index.local_or_import(&self.module_info.read().unwrap()) {
LocalOrImport::Local(local_mem_index) => { LocalOrImport::Local(local_mem_index) => {
let memories_base_addr = func.create_global_value(ir::GlobalValueData::Load { let memories_base_addr = func.create_global_value(ir::GlobalValueData::Load {
base: vmctx, base: vmctx,
@ -164,7 +534,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
offset: (local_memory_ptr_offset as i64).into(), offset: (local_memory_ptr_offset as i64).into(),
global_type: ptr_type, global_type: ptr_type,
}), }),
self.env.module.info.memories[local_mem_index], self.module_info.read().unwrap().memories[local_mem_index],
) )
} }
LocalOrImport::Import(import_mem_index) => { LocalOrImport::Import(import_mem_index) => {
@ -184,7 +554,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
offset: (local_memory_ptr_offset as i64).into(), offset: (local_memory_ptr_offset as i64).into(),
global_type: ptr_type, global_type: ptr_type,
}), }),
self.env.module.info.imported_memories[import_mem_index].1, self.module_info.read().unwrap().imported_memories[import_mem_index].1,
) )
} }
}; };
@ -217,7 +587,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
readonly: false, readonly: false,
}); });
func.create_heap(ir::HeapData { Ok(func.create_heap(ir::HeapData {
base: local_memory_base, base: local_memory_base,
min_size: (description.minimum.bytes().0 as u64).into(), min_size: (description.minimum.bytes().0 as u64).into(),
offset_guard_size: mem_type.guard_size().into(), offset_guard_size: mem_type.guard_size().into(),
@ -225,9 +595,9 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
bound_gv: local_memory_bound, bound_gv: local_memory_bound,
}, },
index_type: ir::types::I32, index_type: ir::types::I32,
}) }))
} }
mem_type @ MemoryType::Static | mem_type @ MemoryType::SharedStatic => func mem_type @ MemoryType::Static | mem_type @ MemoryType::SharedStatic => Ok(func
.create_heap(ir::HeapData { .create_heap(ir::HeapData {
base: local_memory_base, base: local_memory_base,
min_size: (description.minimum.bytes().0 as u64).into(), min_size: (description.minimum.bytes().0 as u64).into(),
@ -236,7 +606,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
bound: mem_type.bounds().unwrap().into(), bound: mem_type.bounds().unwrap().into(),
}, },
index_type: ir::types::I32, index_type: ir::types::I32,
}), })),
} }
} }
@ -248,14 +618,14 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
&mut self, &mut self,
func: &mut ir::Function, func: &mut ir::Function,
clif_table_index: cranelift_wasm::TableIndex, clif_table_index: cranelift_wasm::TableIndex,
) -> ir::Table { ) -> cranelift_wasm::WasmResult<ir::Table> {
let table_index: TableIndex = Converter(clif_table_index).into(); let table_index: TableIndex = Converter(clif_table_index).into();
// Create VMContext value. // Create VMContext value.
let vmctx = func.create_global_value(ir::GlobalValueData::VMContext); let vmctx = func.create_global_value(ir::GlobalValueData::VMContext);
let ptr_type = self.pointer_type(); let ptr_type = self.pointer_type();
let (table_struct_ptr_ptr, description) = match table_index let (table_struct_ptr_ptr, description) = match table_index
.local_or_import(&self.env.module.info) .local_or_import(&self.module_info.read().unwrap())
{ {
LocalOrImport::Local(local_table_index) => { LocalOrImport::Local(local_table_index) => {
let tables_base = func.create_global_value(ir::GlobalValueData::Load { let tables_base = func.create_global_value(ir::GlobalValueData::Load {
@ -276,7 +646,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
( (
table_struct_ptr_ptr, table_struct_ptr_ptr,
self.env.module.info.tables[local_table_index], self.module_info.read().unwrap().tables[local_table_index],
) )
} }
LocalOrImport::Import(import_table_index) => { LocalOrImport::Import(import_table_index) => {
@ -298,7 +668,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
( (
table_struct_ptr_ptr, table_struct_ptr_ptr,
self.env.module.info.imported_tables[import_table_index].1, self.module_info.read().unwrap().imported_tables[import_table_index].1,
) )
} }
}; };
@ -326,13 +696,13 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
readonly: false, readonly: false,
}); });
func.create_table(ir::TableData { Ok(func.create_table(ir::TableData {
base_gv: table_base, base_gv: table_base,
min_size: (description.minimum as u64).into(), min_size: (description.minimum as u64).into(),
bound_gv: table_count, bound_gv: table_count,
element_size: (vm::Anyfunc::size() as u64).into(), element_size: (vm::Anyfunc::size() as u64).into(),
index_type: ir::types::I32, index_type: ir::types::I32,
}) }))
} }
/// Sets up a signature definition in `func`'s preamble. /// Sets up a signature definition in `func`'s preamble.
@ -343,9 +713,9 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
&mut self, &mut self,
func: &mut ir::Function, func: &mut ir::Function,
clif_sig_index: cranelift_wasm::SignatureIndex, clif_sig_index: cranelift_wasm::SignatureIndex,
) -> ir::SigRef { ) -> cranelift_wasm::WasmResult<ir::SigRef> {
// Create a signature reference out of specified signature (with VMContext param added). // Create a signature reference out of specified signature (with VMContext param added).
func.import_signature(self.generate_signature(clif_sig_index)) Ok(func.import_signature(self.generate_signature(clif_sig_index)))
} }
/// Sets up an external function definition in the preamble of `func` that can be used to /// Sets up an external function definition in the preamble of `func` that can be used to
@ -356,9 +726,9 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
&mut self, &mut self,
func: &mut ir::Function, func: &mut ir::Function,
func_index: cranelift_wasm::FuncIndex, func_index: cranelift_wasm::FuncIndex,
) -> ir::FuncRef { ) -> cranelift_wasm::WasmResult<ir::FuncRef> {
// Get signature of function. // Get signature of function.
let signature_index = self.env.get_func_type(func_index); let signature_index = self.get_func_type(func_index);
// Create a signature reference from specified signature (with VMContext param added). // Create a signature reference from specified signature (with VMContext param added).
let signature = func.import_signature(self.generate_signature(signature_index)); let signature = func.import_signature(self.generate_signature(signature_index));
@ -367,12 +737,12 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
let name = ir::ExternalName::user(0, func_index.as_u32()); let name = ir::ExternalName::user(0, func_index.as_u32());
// Create function reference from fuction data. // Create function reference from fuction data.
func.import_function(ir::ExtFuncData { Ok(func.import_function(ir::ExtFuncData {
name, name,
signature, signature,
// Make this colocated so all calls between local functions are relative. // Make this colocated so all calls between local functions are relative.
colocated: true, colocated: true,
}) }))
} }
/// Generates an indirect call IR with `callee` and `call_args`. /// Generates an indirect call IR with `callee` and `call_args`.
@ -485,7 +855,7 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
let callee_index: FuncIndex = Converter(clif_callee_index).into(); let callee_index: FuncIndex = Converter(clif_callee_index).into();
let ptr_type = self.pointer_type(); let ptr_type = self.pointer_type();
match callee_index.local_or_import(&self.env.module.info) { match callee_index.local_or_import(&self.module_info.read().unwrap()) {
LocalOrImport::Local(local_function_index) => { LocalOrImport::Local(local_function_index) => {
// this is an internal function // this is an internal function
let vmctx = pos let vmctx = pos
@ -596,16 +966,16 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
let mem_index: MemoryIndex = Converter(clif_mem_index).into(); let mem_index: MemoryIndex = Converter(clif_mem_index).into();
let (namespace, mem_index, description) = let (namespace, mem_index, description) =
match mem_index.local_or_import(&self.env.module.info) { match mem_index.local_or_import(&self.module_info.read().unwrap()) {
LocalOrImport::Local(local_mem_index) => ( LocalOrImport::Local(local_mem_index) => (
call_names::LOCAL_NAMESPACE, call_names::LOCAL_NAMESPACE,
local_mem_index.index(), local_mem_index.index(),
self.env.module.info.memories[local_mem_index], self.module_info.read().unwrap().memories[local_mem_index],
), ),
LocalOrImport::Import(import_mem_index) => ( LocalOrImport::Import(import_mem_index) => (
call_names::IMPORT_NAMESPACE, call_names::IMPORT_NAMESPACE,
import_mem_index.index(), import_mem_index.index(),
self.env.module.info.imported_memories[import_mem_index].1, self.module_info.read().unwrap().imported_memories[import_mem_index].1,
), ),
}; };
@ -660,16 +1030,16 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
let mem_index: MemoryIndex = Converter(clif_mem_index).into(); let mem_index: MemoryIndex = Converter(clif_mem_index).into();
let (namespace, mem_index, description) = let (namespace, mem_index, description) =
match mem_index.local_or_import(&self.env.module.info) { match mem_index.local_or_import(&self.module_info.read().unwrap()) {
LocalOrImport::Local(local_mem_index) => ( LocalOrImport::Local(local_mem_index) => (
call_names::LOCAL_NAMESPACE, call_names::LOCAL_NAMESPACE,
local_mem_index.index(), local_mem_index.index(),
self.env.module.info.memories[local_mem_index], self.module_info.read().unwrap().memories[local_mem_index],
), ),
LocalOrImport::Import(import_mem_index) => ( LocalOrImport::Import(import_mem_index) => (
call_names::IMPORT_NAMESPACE, call_names::IMPORT_NAMESPACE,
import_mem_index.index(), import_mem_index.index(),
self.env.module.info.imported_memories[import_mem_index].1, self.module_info.read().unwrap().imported_memories[import_mem_index].1,
), ),
}; };
@ -698,3 +1068,199 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
Ok(*pos.func.dfg.inst_results(call_inst).first().unwrap()) Ok(*pos.func.dfg.inst_results(call_inst).first().unwrap())
} }
} }
impl FunctionEnvironment {
pub fn get_func_type(
&self,
func_index: cranelift_wasm::FuncIndex,
) -> cranelift_wasm::SignatureIndex {
let sig_index: SigIndex =
self.module_info.read().unwrap().func_assoc[Converter(func_index).into()];
Converter(sig_index).into()
}
/// Creates a signature with VMContext as the last param
pub fn generate_signature(
&self,
clif_sig_index: cranelift_wasm::SignatureIndex,
) -> ir::Signature {
// Get signature
let mut signature = self.clif_signatures[Converter(clif_sig_index).into()].clone();
// Add the vmctx parameter type to it
signature.params.insert(
0,
ir::AbiParam::special(self.pointer_type(), ir::ArgumentPurpose::VMContext),
);
// Return signature
signature
}
}
impl FunctionCodeGenerator<CodegenError> for CraneliftFunctionCodeGenerator {
fn feed_return(&mut self, _ty: WpType) -> Result<(), CodegenError> {
Ok(())
}
fn feed_param(&mut self, _ty: WpType) -> Result<(), CodegenError> {
self.next_local += 1;
Ok(())
}
fn feed_local(&mut self, ty: WpType, n: usize) -> Result<(), CodegenError> {
let mut next_local = self.next_local;
cranelift_wasm::declare_locals(&mut self.builder(), n as u32, ty, &mut next_local)?;
self.next_local = next_local;
Ok(())
}
fn begin_body(&mut self, _module_info: &ModuleInfo) -> Result<(), CodegenError> {
Ok(())
}
fn feed_event(&mut self, event: Event, _module_info: &ModuleInfo) -> Result<(), CodegenError> {
let op = match event {
Event::Wasm(x) => x,
Event::Internal(_x) => {
return Ok(());
}
};
//let builder = self.builder.as_mut().unwrap();
//let func_environment = FuncEnv::new();
//let state = TranslationState::new();
let mut function_environment = FunctionEnvironment {
module_info: Arc::clone(&self.module_info),
target_config: self.target_config.clone(),
clif_signatures: self.clif_signatures.clone(),
};
if self.func_translator.state.control_stack.is_empty() {
return Ok(());
}
let mut builder = FunctionBuilder::new(
&mut self.func,
&mut self.func_translator.func_ctx,
&mut self.position,
);
let state = &mut self.func_translator.state;
translate_operator(op, &mut builder, state, &mut function_environment)?;
Ok(())
}
fn finalize(&mut self) -> Result<(), CodegenError> {
let return_mode = self.return_mode();
let mut builder = FunctionBuilder::new(
&mut self.func,
&mut self.func_translator.func_ctx,
&mut self.position,
);
let state = &mut self.func_translator.state;
// The final `End` operator left us in the exit block where we need to manually add a return
// instruction.
//
// If the exit block is unreachable, it may not have the correct arguments, so we would
// generate a return instruction that doesn't match the signature.
if state.reachable {
debug_assert!(builder.is_pristine());
if !builder.is_unreachable() {
match return_mode {
ReturnMode::NormalReturns => builder.ins().return_(&state.stack),
ReturnMode::FallthroughReturn => builder.ins().fallthrough_return(&state.stack),
};
}
}
// Discard any remaining values on the stack. Either we just returned them,
// or the end of the function is unreachable.
state.stack.clear();
self.builder().finalize();
Ok(())
}
}
#[derive(Debug)]
pub struct CodegenError {
pub message: String,
}
impl CraneliftModuleCodeGenerator {
/// Return the signature index for the given function index.
pub fn get_func_type(
&self,
module_info: &ModuleInfo,
func_index: cranelift_wasm::FuncIndex,
) -> cranelift_wasm::SignatureIndex {
let sig_index: SigIndex = module_info.func_assoc[Converter(func_index).into()];
Converter(sig_index).into()
}
}
impl CraneliftFunctionCodeGenerator {
pub fn builder(&mut self) -> FunctionBuilder {
FunctionBuilder::new(
&mut self.func,
&mut self.func_translator.func_ctx,
&mut self.position,
)
}
pub fn return_mode(&self) -> ReturnMode {
ReturnMode::NormalReturns
}
}
/// Creates a signature with VMContext as the last param
fn generate_signature(
env: &CraneliftModuleCodeGenerator,
clif_sig_index: cranelift_wasm::SignatureIndex,
) -> ir::Signature {
// Get signature
let mut signature = env.clif_signatures[Converter(clif_sig_index).into()].clone();
// Add the vmctx parameter type to it
signature.params.insert(
0,
ir::AbiParam::special(pointer_type(env), ir::ArgumentPurpose::VMContext),
);
// Return signature
signature
}
fn pointer_type(mcg: &CraneliftModuleCodeGenerator) -> ir::Type {
ir::Type::int(u16::from(mcg.isa.frontend_config().pointer_bits())).unwrap()
}
/// Declare local variables for the signature parameters that correspond to WebAssembly locals.
///
/// Return the number of local variables declared.
fn declare_wasm_parameters(builder: &mut FunctionBuilder, entry_block: Ebb) -> usize {
let sig_len = builder.func.signature.params.len();
let mut next_local = 0;
for i in 0..sig_len {
let param_type = builder.func.signature.params[i];
// There may be additional special-purpose parameters following the normal WebAssembly
// signature parameters. For example, a `vmctx` pointer.
if param_type.purpose == ir::ArgumentPurpose::Normal {
// This is a normal WebAssembly signature parameter, so create a local for it.
let local = Variable::new(next_local);
builder.declare_var(local, param_type.value_type);
next_local += 1;
let param_value = builder.ebb_params(entry_block)[i];
builder.def_var(local, param_value);
}
if param_type.purpose == ir::ArgumentPurpose::VMContext {
let param_value = builder.ebb_params(entry_block)[i];
builder.set_val_label(param_value, get_vmctx_value_label());
}
}
next_local
}

101
lib/clif-backend/src/lib.rs
View File

@ -1,10 +1,9 @@
#![deny(unused_imports, unused_variables, unused_unsafe, unreachable_patterns)] #![deny(unused_imports, unused_variables, unused_unsafe, unreachable_patterns)]
mod cache; mod cache;
mod func_env; mod code;
mod libcalls; mod libcalls;
mod module; mod module;
mod module_env;
mod relocation; mod relocation;
mod resolver; mod resolver;
mod signal; mod signal;
@ -16,87 +15,12 @@ use cranelift_codegen::{
}; };
use target_lexicon::Triple; use target_lexicon::Triple;
use wasmer_runtime_core::cache::{Artifact, Error as CacheError};
use wasmer_runtime_core::{
backend::{Compiler, CompilerConfig, Token},
error::{CompileError, CompileResult},
module::ModuleInner,
};
#[macro_use] #[macro_use]
extern crate serde_derive; extern crate serde_derive;
extern crate rayon; extern crate rayon;
extern crate serde; extern crate serde;
use wasmparser::{self, WasmDecoder};
pub struct CraneliftCompiler {}
impl CraneliftCompiler {
pub fn new() -> Self {
Self {}
}
}
impl Compiler for CraneliftCompiler {
/// Compiles wasm binary to a wasmer module.
fn compile(
&self,
wasm: &[u8],
compiler_config: CompilerConfig,
_: Token,
) -> CompileResult<ModuleInner> {
validate(wasm)?;
let isa = get_isa();
let mut module = module::Module::new(&compiler_config);
let module_env = module_env::ModuleEnv::new(&mut module, &*isa);
let func_bodies = module_env.translate(wasm)?;
module.compile(&*isa, func_bodies)
}
/// Create a wasmer Module from an already-compiled cache.
unsafe fn from_cache(&self, cache: Artifact, _: Token) -> Result<ModuleInner, CacheError> {
module::Module::from_cache(cache)
}
//
// fn compile_to_backend_cache_data(
// &self,
// wasm: &[u8],
// _: Token,
// ) -> CompileResult<(Box<ModuleInfo>, Vec<u8>, Memory)> {
// validate(wasm)?;
// let isa = get_isa();
// let mut module = module::Module::new(wasm);
// let module_env = module_env::ModuleEnv::new(&mut module, &*isa);
// let func_bodies = module_env.translate(wasm)?;
// let (info, backend_cache, compiled_code) = module
// .compile_to_backend_cache(&*isa, func_bodies)
// .map_err(|e| CompileError::InternalError {
// msg: format!("{:?}", e),
// })?;
// let buffer =
// backend_cache
// .into_backend_data()
// .map_err(|e| CompileError::InternalError {
// msg: format!("{:?}", e),
// })?;
// Ok((Box::new(info), buffer, compiled_code))
// }
}
fn get_isa() -> Box<isa::TargetIsa> { fn get_isa() -> Box<isa::TargetIsa> {
let flags = { let flags = {
let mut builder = settings::builder(); let mut builder = settings::builder();
@ -113,19 +37,14 @@ fn get_isa() -> Box<isa::TargetIsa> {
isa::lookup(Triple::host()).unwrap().finish(flags) isa::lookup(Triple::host()).unwrap().finish(flags)
} }
fn validate(bytes: &[u8]) -> CompileResult<()> {
let mut parser = wasmparser::ValidatingParser::new(bytes, None);
loop {
let state = parser.read();
match *state {
wasmparser::ParserState::EndWasm => break Ok(()),
wasmparser::ParserState::Error(err) => Err(CompileError::ValidationError {
msg: err.message.to_string(),
})?,
_ => {}
}
}
}
/// The current version of this crate /// The current version of this crate
pub const VERSION: &str = env!("CARGO_PKG_VERSION"); pub const VERSION: &str = env!("CARGO_PKG_VERSION");
use wasmer_runtime_core::codegen::SimpleStreamingCompilerGen;
pub type CraneliftCompiler = SimpleStreamingCompilerGen<
code::CraneliftModuleCodeGenerator,
code::CraneliftFunctionCodeGenerator,
signal::Caller,
code::CodegenError,
>;

100
lib/clif-backend/src/module.rs
View File

@ -1,22 +1,17 @@
use crate::cache::{BackendCache, CacheGenerator}; use crate::cache::{BackendCache, CacheGenerator};
use crate::{resolver::FuncResolverBuilder, signal::Caller, trampoline::Trampolines}; use crate::{resolver::FuncResolverBuilder, signal::Caller};
use cranelift_codegen::{ir, isa}; use cranelift_codegen::ir;
use cranelift_entity::EntityRef; use cranelift_entity::EntityRef;
use cranelift_wasm; use cranelift_wasm;
use hashbrown::HashMap;
use std::sync::Arc; use std::sync::Arc;
use wasmer_runtime_core::cache::{Artifact, Error as CacheError}; use wasmer_runtime_core::cache::{Artifact, Error as CacheError};
use wasmer_runtime_core::{ use wasmer_runtime_core::{
backend::{Backend, CompilerConfig}, module::{ModuleInfo, ModuleInner},
error::CompileResult, structures::TypedIndex,
module::{ModuleInfo, ModuleInner, StringTable}, types::{FuncIndex, FuncSig, GlobalIndex, MemoryIndex, SigIndex, TableIndex, Type},
structures::{Map, TypedIndex},
types::{
FuncIndex, FuncSig, GlobalIndex, LocalFuncIndex, MemoryIndex, SigIndex, TableIndex, Type,
},
}; };
/// This contains all of the items in a `ModuleInner` except the `func_resolver`. /// This contains all of the items in a `ModuleInner` except the `func_resolver`.
@ -25,69 +20,6 @@ pub struct Module {
} }
impl Module { impl Module {
pub fn new(compiler_config: &CompilerConfig) -> Self {
Self {
info: ModuleInfo {
memories: Map::new(),
globals: Map::new(),
tables: Map::new(),
imported_functions: Map::new(),
imported_memories: Map::new(),
imported_tables: Map::new(),
imported_globals: Map::new(),
exports: HashMap::new(),
data_initializers: Vec::new(),
elem_initializers: Vec::new(),
start_func: None,
func_assoc: Map::new(),
signatures: Map::new(),
backend: Backend::Cranelift,
namespace_table: StringTable::new(),
name_table: StringTable::new(),
em_symbol_map: compiler_config.symbol_map.clone(),
custom_sections: HashMap::new(),
},
}
}
pub fn compile(
self,
isa: &isa::TargetIsa,
functions: Map<LocalFuncIndex, ir::Function>,
) -> CompileResult<ModuleInner> {
let (func_resolver_builder, handler_data) =
FuncResolverBuilder::new(isa, functions, &self.info)?;
let trampolines = Arc::new(Trampolines::new(isa, &self.info));
let (func_resolver, backend_cache) = func_resolver_builder.finalize(
&self.info.signatures,
Arc::clone(&trampolines),
handler_data.clone(),
)?;
let cache_gen = Box::new(CacheGenerator::new(
backend_cache,
Arc::clone(&func_resolver.memory),
));
let runnable_module = Caller::new(handler_data, trampolines, func_resolver);
Ok(ModuleInner {
runnable_module: Box::new(runnable_module),
cache_gen,
info: self.info,
})
}
pub fn from_cache(cache: Artifact) -> Result<ModuleInner, CacheError> { pub fn from_cache(cache: Artifact) -> Result<ModuleInner, CacheError> {
let (info, compiled_code, backend_cache) = BackendCache::from_cache(cache)?; let (info, compiled_code, backend_cache) = BackendCache::from_cache(cache)?;
@ -179,3 +111,25 @@ impl From<Converter<ir::Type>> for Type {
} }
} }
} }
impl From<Converter<Type>> for ir::Type {
fn from(ty: Converter<Type>) -> Self {
match ty.0 {
Type::I32 => ir::types::I32,
Type::I64 => ir::types::I64,
Type::F32 => ir::types::F32,
Type::F64 => ir::types::F64,
}
}
}
impl From<Converter<Type>> for ir::AbiParam {
fn from(ty: Converter<Type>) -> Self {
match ty.0 {
Type::I32 => ir::AbiParam::new(ir::types::I32),
Type::I64 => ir::AbiParam::new(ir::types::I64),
Type::F32 => ir::AbiParam::new(ir::types::F32),
Type::F64 => ir::AbiParam::new(ir::types::F64),
}
}
}

557
lib/clif-backend/src/module_env.rs
View File

@ -1,557 +0,0 @@
use crate::{
func_env::FuncEnv,
module::{Converter, Module},
};
use cranelift_codegen::{ir, isa};
use cranelift_wasm::{self, translate_module, FuncTranslator, ModuleEnvironment};
use wasmer_runtime_core::{
error::{CompileError, CompileResult},
module::{
DataInitializer, ExportIndex, ImportName, NameIndex, NamespaceIndex, StringTableBuilder,
TableInitializer,
},
structures::{Map, TypedIndex},
types::{
ElementType, GlobalDescriptor, GlobalIndex, GlobalInit, Initializer, LocalFuncIndex,
LocalOrImport, MemoryDescriptor, SigIndex, TableDescriptor, Value,
},
units::Pages,
};
pub struct ModuleEnv<'module, 'isa> {
pub module: &'module mut Module,
isa: &'isa isa::TargetIsa,
pub signatures: Map<SigIndex, ir::Signature>,
globals: Map<GlobalIndex, cranelift_wasm::Global>,
func_bodies: Map<LocalFuncIndex, ir::Function>,
namespace_table_builder: StringTableBuilder<NamespaceIndex>,
name_table_builder: StringTableBuilder<NameIndex>,
}
impl<'module, 'isa> ModuleEnv<'module, 'isa> {
pub fn new(module: &'module mut Module, isa: &'isa isa::TargetIsa) -> Self {
Self {
module,
isa,
signatures: Map::new(),
globals: Map::new(),
func_bodies: Map::new(),
namespace_table_builder: StringTableBuilder::new(),
name_table_builder: StringTableBuilder::new(),
}
}
pub fn translate(mut self, wasm: &[u8]) -> CompileResult<Map<LocalFuncIndex, ir::Function>> {
translate_module(wasm, &mut self)
.map_err(|e| CompileError::InternalError { msg: e.to_string() })?;
self.module.info.namespace_table = self.namespace_table_builder.finish();
self.module.info.name_table = self.name_table_builder.finish();
Ok(self.func_bodies)
}
/// Return the global for the given global index.
pub fn get_global(&self, global_index: cranelift_wasm::GlobalIndex) -> &cranelift_wasm::Global {
&self.globals[Converter(global_index).into()]
}
/// Return the signature index for the given function index.
pub fn get_func_type(
&self,
func_index: cranelift_wasm::FuncIndex,
) -> cranelift_wasm::SignatureIndex {
let sig_index: SigIndex = self.module.info.func_assoc[Converter(func_index).into()];
Converter(sig_index).into()
}
}
impl<'module, 'isa, 'data> ModuleEnvironment<'data> for ModuleEnv<'module, 'isa> {
/// Get the information needed to produce Cranelift IR for the current target.
fn target_config(&self) -> isa::TargetFrontendConfig {
self.isa.frontend_config()
}
/// Declares a function signature to the environment.
fn declare_signature(&mut self, sig: ir::Signature) {
self.signatures.push(sig.clone());
self.module.info.signatures.push(Converter(sig).into());
}
/// Declares a function import to the environment.
fn declare_func_import(
&mut self,
clif_sig_index: cranelift_wasm::SignatureIndex,
namespace: &'data str,
name: &'data str,
) {
// We convert the cranelift signature index to
// a wasmer signature index without deduplicating
// because we'll deduplicate later.
let sig_index = Converter(clif_sig_index).into();
self.module.info.func_assoc.push(sig_index);
let namespace_index = self.namespace_table_builder.register(namespace);
let name_index = self.name_table_builder.register(name);
// Add import names to list of imported functions
self.module.info.imported_functions.push(ImportName {
namespace_index,
name_index,
});
}
/// Declares the type (signature) of a local function in the module.
fn declare_func_type(&mut self, clif_sig_index: cranelift_wasm::SignatureIndex) {
// We convert the cranelift signature index to
// a wasmer signature index without deduplicating
// because we'll deduplicate later.
let sig_index = Converter(clif_sig_index).into();
self.module.info.func_assoc.push(sig_index);
}
/// Declares a global to the environment.
fn declare_global(&mut self, global: cranelift_wasm::Global) {
let desc = GlobalDescriptor {
mutable: global.mutability,
ty: Converter(global.ty).into(),
};
let init = match global.initializer {
cranelift_wasm::GlobalInit::I32Const(x) => Initializer::Const(Value::I32(x)),
cranelift_wasm::GlobalInit::I64Const(x) => Initializer::Const(Value::I64(x)),
cranelift_wasm::GlobalInit::F32Const(x) => {
Initializer::Const(Value::F32(f32::from_bits(x)))
}
cranelift_wasm::GlobalInit::F64Const(x) => {
Initializer::Const(Value::F64(f64::from_bits(x)))
}
cranelift_wasm::GlobalInit::GetGlobal(global_index) => {
// assert!(!desc.mutable);
let global_index: GlobalIndex = Converter(global_index).into();
let imported_global_index = global_index
.local_or_import(&self.module.info)
.import()
.expect("invalid global initializer when declaring an imported global");
Initializer::GetGlobal(imported_global_index)
}
_ => panic!("invalid global initializer when declaring a local global"),
};
// Add global ir to the list of globals
self.module.info.globals.push(GlobalInit { desc, init });
self.globals.push(global);
}
/// Declares a global import to the environment.
fn declare_global_import(
&mut self,
global: cranelift_wasm::Global,
namespace: &'data str,
name: &'data str,
) {
assert!(match global.initializer {
cranelift_wasm::GlobalInit::Import => true,
_ => false,
});
let namespace_index = self.namespace_table_builder.register(namespace);
let name_index = self.name_table_builder.register(name);
let import_name = ImportName {
namespace_index,
name_index,
};
let desc = GlobalDescriptor {
mutable: global.mutability,
ty: Converter(global.ty).into(),
};
// Add global ir to the list of globals
self.module.info.imported_globals.push((import_name, desc));
self.globals.push(global);
}
/// Declares a table to the environment.
fn declare_table(&mut self, table: cranelift_wasm::Table) {
use cranelift_wasm::TableElementType;
// Add table ir to the list of tables
self.module.info.tables.push(TableDescriptor {
element: match table.ty {
TableElementType::Func => ElementType::Anyfunc,
_ => unimplemented!(),
},
minimum: table.minimum,
maximum: table.maximum,
});
}
/// Declares a table import to the environment.
fn declare_table_import(
&mut self,
table: cranelift_wasm::Table,
namespace: &'data str,
name: &'data str,
) {
use cranelift_wasm::TableElementType;
let namespace_index = self.namespace_table_builder.register(namespace);
let name_index = self.name_table_builder.register(name);
let import_name = ImportName {
namespace_index,
name_index,
};
let imported_table = TableDescriptor {
element: match table.ty {
TableElementType::Func => ElementType::Anyfunc,
_ => unimplemented!(),
},
minimum: table.minimum,
maximum: table.maximum,
};
// Add import names to list of imported tables
self.module
.info
.imported_tables
.push((import_name, imported_table));
}
/// Fills a declared table with references to functions in the module.
fn declare_table_elements(
&mut self,
table_index: cranelift_wasm::TableIndex,
base: Option<cranelift_wasm::GlobalIndex>,
offset: usize,
elements: Box<[cranelift_wasm::FuncIndex]>,
) {
// Convert Cranelift GlobalIndex to wamser GlobalIndex
// let base = base.map(|index| WasmerGlobalIndex::new(index.index()));
let base = match base {
Some(global_index) => {
let global_index: GlobalIndex = Converter(global_index).into();
Initializer::GetGlobal(match global_index.local_or_import(&self.module.info) {
LocalOrImport::Import(imported_global_index) => imported_global_index,
LocalOrImport::Local(_) => {
panic!("invalid global initializer when declaring an imported global")
}
})
}
None => Initializer::Const((offset as i32).into()),
};
// Add table initializer to list of table initializers
self.module.info.elem_initializers.push(TableInitializer {
table_index: Converter(table_index).into(),
base,
elements: elements
.iter()
.map(|&func_index| Converter(func_index).into())
.collect(),
});
}
/// Declares a memory to the environment
fn declare_memory(&mut self, memory: cranelift_wasm::Memory) {
self.module.info.memories.push(MemoryDescriptor {
minimum: Pages(memory.minimum),
maximum: memory.maximum.map(|max| Pages(max)),
shared: memory.shared,
});
}
/// Declares a memory import to the environment.
fn declare_memory_import(
&mut self,
memory: cranelift_wasm::Memory,
namespace: &'data str,
name: &'data str,
) {
let namespace_index = self.namespace_table_builder.register(namespace);
let name_index = self.name_table_builder.register(name);
let import_name = ImportName {
namespace_index,
name_index,
};
let memory = MemoryDescriptor {
minimum: Pages(memory.minimum),
maximum: memory.maximum.map(|max| Pages(max)),
shared: memory.shared,
};
// Add import names to list of imported memories
self.module
.info
.imported_memories
.push((import_name, memory));
}
/// Fills a declared memory with bytes at module instantiation.
fn declare_data_initialization(
&mut self,
memory_index: cranelift_wasm::MemoryIndex,
base: Option<cranelift_wasm::GlobalIndex>,
offset: usize,
data: &'data [u8],
) {
// Convert Cranelift GlobalIndex to wamser GlobalIndex
let base = match base {
Some(global_index) => {
let global_index: GlobalIndex = Converter(global_index).into();
Initializer::GetGlobal(match global_index.local_or_import(&self.module.info) {
LocalOrImport::Import(imported_global_index) => imported_global_index,
LocalOrImport::Local(_) => {
panic!("invalid global initializer when declaring an imported global")
}
})
}
None => Initializer::Const((offset as i32).into()),
};
// Add data initializer to list of data initializers
self.module.info.data_initializers.push(DataInitializer {
memory_index: Converter(memory_index).into(),
base,
data: data.to_vec(),
});
}
/// Declares a function export to the environment.
fn declare_func_export(&mut self, func_index: cranelift_wasm::FuncIndex, name: &'data str) {
self.module.info.exports.insert(
name.to_string(),
ExportIndex::Func(Converter(func_index).into()),
);
}
/// Declares a table export to the environment.
fn declare_table_export(&mut self, table_index: cranelift_wasm::TableIndex, name: &'data str) {
self.module.info.exports.insert(
name.to_string(),
ExportIndex::Table(Converter(table_index).into()),
);
}
/// Declares a memory export to the environment.
fn declare_memory_export(
&mut self,
memory_index: cranelift_wasm::MemoryIndex,
name: &'data str,
) {
self.module.info.exports.insert(
name.to_string(),
ExportIndex::Memory(Converter(memory_index).into()),
);
}
/// Declares a global export to the environment.
fn declare_global_export(
&mut self,
global_index: cranelift_wasm::GlobalIndex,
name: &'data str,
) {
self.module.info.exports.insert(
name.to_string(),
ExportIndex::Global(Converter(global_index).into()),
);
}
/// Declares a start function.
fn declare_start_func(&mut self, func_index: cranelift_wasm::FuncIndex) {
self.module.info.start_func = Some(Converter(func_index).into());
}
/// Provides the contents of a function body.
fn define_function_body(
&mut self,
body_bytes: &'data [u8],
body_offset: usize,
) -> cranelift_wasm::WasmResult<()> {
let mut func_translator = FuncTranslator::new();
let func_body = {
let mut func_env = FuncEnv::new(self);
let func_index = self.func_bodies.next_index();
let name = ir::ExternalName::user(0, func_index.index() as u32);
let sig = func_env.generate_signature(
self.get_func_type(Converter(func_index.convert_up(&self.module.info)).into()),
);
let mut func = ir::Function::with_name_signature(name, sig);
func_translator.translate(body_bytes, body_offset, &mut func, &mut func_env)?;
#[cfg(feature = "debug")]
{
use cranelift_codegen::cursor::{Cursor, FuncCursor};
use cranelift_codegen::ir::InstBuilder;
let entry_ebb = func.layout.entry_block().unwrap();
let ebb = func.dfg.make_ebb();
func.layout.insert_ebb(ebb, entry_ebb);
let mut pos = FuncCursor::new(&mut func).at_first_insertion_point(ebb);
let params = pos.func.dfg.ebb_params(entry_ebb).to_vec();
let new_ebb_params: Vec<_> = params
.iter()
.map(|&param| {
pos.func
.dfg
.append_ebb_param(ebb, pos.func.dfg.value_type(param))
})
.collect();
let start_debug = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("strtdbug");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let end_debug = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![ir::AbiParam::special(
ir::types::I64,
ir::ArgumentPurpose::VMContext,
)],
returns: vec![],
});
let name = ir::ExternalName::testcase("enddbug");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let i32_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("i32print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let i64_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::I64),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("i64print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let f32_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::F32),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("f32print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let f64_print = {
let signature = pos.func.import_signature(ir::Signature {
call_conv: self.target_config().default_call_conv,
params: vec![
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
ir::AbiParam::new(ir::types::F64),
],
returns: vec![],
});
let name = ir::ExternalName::testcase("f64print");
pos.func.import_function(ir::ExtFuncData {
name,
signature,
colocated: false,
})
};
let vmctx = pos
.func
.special_param(ir::ArgumentPurpose::VMContext)
.expect("missing vmctx parameter");
let func_index = pos.ins().iconst(
ir::types::I32,
func_index.index() as i64 + self.module.info.imported_functions.len() as i64,
);
pos.ins().call(start_debug, &[vmctx, func_index]);
for param in new_ebb_params.iter().cloned() {
match pos.func.dfg.value_type(param) {
ir::types::I32 => pos.ins().call(i32_print, &[vmctx, param]),
ir::types::I64 => pos.ins().call(i64_print, &[vmctx, param]),
ir::types::F32 => pos.ins().call(f32_print, &[vmctx, param]),
ir::types::F64 => pos.ins().call(f64_print, &[vmctx, param]),
_ => unimplemented!(),
};
}
pos.ins().call(end_debug, &[vmctx]);
pos.ins().jump(entry_ebb, new_ebb_params.as_slice());
}
func
};
// Add function body to list of function bodies.
self.func_bodies.push(func_body);
Ok(())
}
}

7
lib/emscripten/Cargo.toml
View File

@ -9,14 +9,15 @@ edition = "2018"
build = "build/mod.rs" build = "build/mod.rs"
[dependencies] [dependencies]
wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" } byteorder = "1"
hashbrown = "0.1"
lazy_static = "1.2.0" lazy_static = "1.2.0"
libc = "0.2.49" libc = "0.2.49"
byteorder = "1"
time = "0.1.41" time = "0.1.41"
wasmer-clif-backend = { path = "../clif-backend", version = "0.4.2" } wasmer-clif-backend = { path = "../clif-backend", version = "0.4.2" }
wasmer-singlepass-backend = { path = "../singlepass-backend", version = "0.4.2", optional = true }
wasmer-llvm-backend = { path = "../llvm-backend", version = "0.4.2", optional = true } wasmer-llvm-backend = { path = "../llvm-backend", version = "0.4.2", optional = true }
wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" }
wasmer-singlepass-backend = { path = "../singlepass-backend", version = "0.4.2", optional = true }
[target.'cfg(windows)'.dependencies] [target.'cfg(windows)'.dependencies]
rand = "0.6" rand = "0.6"

12
lib/emscripten/src/lib.rs
View File

@ -3,8 +3,10 @@
#[macro_use] #[macro_use]
extern crate wasmer_runtime_core; extern crate wasmer_runtime_core;
use hashbrown::HashMap;
use lazy_static::lazy_static; use lazy_static::lazy_static;
use std::cell::UnsafeCell; use std::cell::UnsafeCell;
use std::path::PathBuf;
use std::{f64, ffi::c_void}; use std::{f64, ffi::c_void};
use wasmer_runtime_core::{ use wasmer_runtime_core::{
error::CallResult, error::CallResult,
@ -144,10 +146,14 @@ pub struct EmscriptenData<'a> {
pub stack_save: Option<Func<'a, (), i32>>, pub stack_save: Option<Func<'a, (), i32>>,
pub stack_restore: Option<Func<'a, (i32)>>, pub stack_restore: Option<Func<'a, (i32)>>,
pub set_threw: Option<Func<'a, (i32, i32)>>, pub set_threw: Option<Func<'a, (i32, i32)>>,
pub mapped_dirs: HashMap<String, PathBuf>,
} }
impl<'a> EmscriptenData<'a> { impl<'a> EmscriptenData<'a> {
pub fn new(instance: &'a mut Instance) -> EmscriptenData<'a> { pub fn new(
instance: &'a mut Instance,
mapped_dirs: HashMap<String, PathBuf>,
) -> EmscriptenData<'a> {
let malloc = instance.func("_malloc").unwrap(); let malloc = instance.func("_malloc").unwrap();
let free = instance.func("_free").unwrap(); let free = instance.func("_free").unwrap();
let memalign = instance.func("_memalign").ok(); let memalign = instance.func("_memalign").ok();
@ -275,6 +281,7 @@ impl<'a> EmscriptenData<'a> {
stack_save, stack_save,
stack_restore, stack_restore,
set_threw, set_threw,
mapped_dirs,
} }
} }
} }
@ -285,8 +292,9 @@ pub fn run_emscripten_instance(
path: &str, path: &str,
args: Vec<&str>, args: Vec<&str>,
entrypoint: Option<String>, entrypoint: Option<String>,
mapped_dirs: Vec<(String, PathBuf)>,
) -> CallResult<()> { ) -> CallResult<()> {
let mut data = EmscriptenData::new(instance); let mut data = EmscriptenData::new(instance, mapped_dirs.into_iter().collect());
let data_ptr = &mut data as *mut _ as *mut c_void; let data_ptr = &mut data as *mut _ as *mut c_void;
instance.context_mut().data = data_ptr; instance.context_mut().data = data_ptr;

62
lib/emscripten/src/syscalls/mod.rs
View File

@ -10,7 +10,8 @@ pub use self::unix::*;
#[cfg(windows)] #[cfg(windows)]
pub use self::windows::*; pub use self::windows::*;
use super::utils::copy_stat_into_wasm; use crate::utils::{copy_stat_into_wasm, get_cstr_path, get_current_directory};
use super::varargs::VarArgs; use super::varargs::VarArgs;
use byteorder::{ByteOrder, LittleEndian}; use byteorder::{ByteOrder, LittleEndian};
/// NOTE: TODO: These syscalls only support wasm_32 for now because they assume offsets are u32 /// NOTE: TODO: These syscalls only support wasm_32 for now because they assume offsets are u32
@ -95,12 +96,19 @@ pub fn ___syscall6(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int
pub fn ___syscall12(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall12(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall12 (chdir) {}", _which); debug!("emscripten::___syscall12 (chdir) {}", _which);
let path_ptr = varargs.get_str(ctx); let path_ptr = varargs.get_str(ctx);
unsafe { let real_path_owned = get_cstr_path(ctx, path_ptr);
let _path = std::ffi::CStr::from_ptr(path_ptr); let real_path = if let Some(ref rp) = real_path_owned {
let ret = chdir(path_ptr); rp.as_c_str().as_ptr()
debug!("=> path: {:?}, ret: {}", _path, ret); } else {
path_ptr
};
let ret = unsafe { chdir(real_path) };
debug!(
"=> path: {:?}, ret: {}",
unsafe { std::ffi::CStr::from_ptr(real_path) },
ret ret
} );
ret
} }
pub fn ___syscall10(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 { pub fn ___syscall10(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 {
@ -159,11 +167,23 @@ pub fn ___syscall38(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> i32 {
debug!("emscripten::___syscall38 (rename)"); debug!("emscripten::___syscall38 (rename)");
let old_path = varargs.get_str(ctx); let old_path = varargs.get_str(ctx);
let new_path = varargs.get_str(ctx); let new_path = varargs.get_str(ctx);
let result = unsafe { rename(old_path, new_path) }; let real_old_path_owned = get_cstr_path(ctx, old_path);
let real_old_path = if let Some(ref rp) = real_old_path_owned {
rp.as_c_str().as_ptr()
} else {
old_path
};
let real_new_path_owned = get_cstr_path(ctx, new_path);
let real_new_path = if let Some(ref rp) = real_new_path_owned {
rp.as_c_str().as_ptr()
} else {
new_path
};
let result = unsafe { rename(real_old_path, real_new_path) };
debug!( debug!(
"=> old_path: {}, new_path: {}, result: {}", "=> old_path: {}, new_path: {}, result: {}",
unsafe { std::ffi::CStr::from_ptr(old_path).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_old_path).to_str().unwrap() },
unsafe { std::ffi::CStr::from_ptr(new_path).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_new_path).to_str().unwrap() },
result result
); );
result result
@ -173,7 +193,13 @@ pub fn ___syscall38(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> i32 {
pub fn ___syscall40(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall40(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall40 (rmdir)"); debug!("emscripten::___syscall40 (rmdir)");
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
unsafe { rmdir(pathname_addr) } let real_path_owned = get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
unsafe { rmdir(real_path) }
} }
// pipe // pipe
@ -354,10 +380,9 @@ pub fn ___syscall163(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 {
// getcwd // getcwd
pub fn ___syscall183(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> i32 { pub fn ___syscall183(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> i32 {
debug!("emscripten::___syscall183"); debug!("emscripten::___syscall183");
use std::env;
let buf_offset: c_int = varargs.get(ctx); let buf_offset: c_int = varargs.get(ctx);
let _size: c_int = varargs.get(ctx); let _size: c_int = varargs.get(ctx);
let path = env::current_dir(); let path = get_current_directory(ctx);
let path_string = path.unwrap().display().to_string(); let path_string = path.unwrap().display().to_string();
let len = path_string.len(); let len = path_string.len();
unsafe { unsafe {
@ -530,12 +555,19 @@ pub fn ___syscall195(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
let buf: u32 = varargs.get(ctx); let buf: u32 = varargs.get(ctx);
let real_path_owned = get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
unsafe { unsafe {
let mut _stat: stat = std::mem::zeroed(); let mut _stat: stat = std::mem::zeroed();
let ret = stat(pathname_addr, &mut _stat); let ret = stat(real_path, &mut _stat);
debug!( debug!(
"=> pathname: {}, buf: {} = {}, last os error: {}", "=> pathname: {}, buf: {} = {}, last os error: {}",
std::ffi::CStr::from_ptr(pathname_addr).to_str().unwrap(), std::ffi::CStr::from_ptr(real_path).to_str().unwrap(),
buf, buf,
ret, ret,
Error::last_os_error() Error::last_os_error()
@ -604,7 +636,7 @@ pub fn ___syscall221(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
// |FNONBLOCK - 0x04 // |FNONBLOCK - 0x04
debug!("=> fd: {}, cmd: {}", _fd, cmd); debug!("=> fd: {}, cmd: {}", _fd, cmd);
match cmd { match cmd {
2 => 0, 1 | 2 => 0,
13 | 14 => 0, // pretend file locking worked 13 | 14 => 0, // pretend file locking worked
_ => -1, _ => -1,
} }

114
lib/emscripten/src/syscalls/unix.rs
View File

@ -43,6 +43,7 @@ use libc::{
pid_t, pid_t,
pread, pread,
pwrite, pwrite,
readdir,
// readv, // readv,
recvfrom, recvfrom,
recvmsg, recvmsg,
@ -107,8 +108,14 @@ pub fn ___syscall5(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
let flags: i32 = varargs.get(ctx); let flags: i32 = varargs.get(ctx);
let mode: u32 = varargs.get(ctx); let mode: u32 = varargs.get(ctx);
let _path_str = unsafe { std::ffi::CStr::from_ptr(pathname_addr).to_str().unwrap() }; let real_path_owned = utils::get_cstr_path(ctx, pathname_addr);
let fd = unsafe { open(pathname_addr, flags, mode) }; let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
let _path_str = unsafe { std::ffi::CStr::from_ptr(real_path).to_str().unwrap() };
let fd = unsafe { open(real_path, flags, mode) };
debug!( debug!(
"=> path: {}, flags: {}, mode: {} = fd: {}, last os error: {}", "=> path: {}, flags: {}, mode: {} = fd: {}, last os error: {}",
_path_str, _path_str,
@ -154,11 +161,23 @@ pub fn ___syscall83(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int
let path1 = varargs.get_str(ctx); let path1 = varargs.get_str(ctx);
let path2 = varargs.get_str(ctx); let path2 = varargs.get_str(ctx);
let result = unsafe { symlink(path1, path2) }; let real_path1_owned = utils::get_cstr_path(ctx, path1);
let real_path1 = if let Some(ref rp) = real_path1_owned {
rp.as_c_str().as_ptr()
} else {
path1
};
let real_path2_owned = utils::get_cstr_path(ctx, path2);
let real_path2 = if let Some(ref rp) = real_path2_owned {
rp.as_c_str().as_ptr()
} else {
path2
};
let result = unsafe { symlink(real_path1, real_path2) };
debug!( debug!(
"=> path1: {}, path2: {}, result: {}", "=> path1: {}, path2: {}, result: {}",
unsafe { std::ffi::CStr::from_ptr(path1).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_path1).to_str().unwrap() },
unsafe { std::ffi::CStr::from_ptr(path2).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_path2).to_str().unwrap() },
result, result,
); );
result result
@ -181,12 +200,18 @@ pub fn ___syscall194(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
pub fn ___syscall198(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall198(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall198 (lchown) {}", _which); debug!("emscripten::___syscall198 (lchown) {}", _which);
let path_ptr = varargs.get_str(ctx); let path_ptr = varargs.get_str(ctx);
let real_path_owned = utils::get_cstr_path(ctx, path_ptr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
path_ptr
};
let uid: uid_t = varargs.get(ctx); let uid: uid_t = varargs.get(ctx);
let gid: gid_t = varargs.get(ctx); let gid: gid_t = varargs.get(ctx);
let result = unsafe { lchown(path_ptr, uid, gid) }; let result = unsafe { lchown(real_path, uid, gid) };
debug!( debug!(
"=> path: {}, uid: {}, gid: {}, result: {}", "=> path: {}, uid: {}, gid: {}, result: {}",
unsafe { std::ffi::CStr::from_ptr(path_ptr).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_path).to_str().unwrap() },
uid, uid,
gid, gid,
result, result,
@ -216,10 +241,16 @@ pub fn ___syscall212(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
debug!("emscripten::___syscall212 (chown) {}", _which); debug!("emscripten::___syscall212 (chown) {}", _which);
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
let real_path_owned = utils::get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
let owner: u32 = varargs.get(ctx); let owner: u32 = varargs.get(ctx);
let group: u32 = varargs.get(ctx); let group: u32 = varargs.get(ctx);
unsafe { chown(pathname_addr, owner, group) } unsafe { chown(real_path, owner, group) }
} }
/// madvise /// madvise
@ -239,11 +270,17 @@ pub fn ___syscall219(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
pub fn ___syscall33(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall33(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall33 (access) {}", _which); debug!("emscripten::___syscall33 (access) {}", _which);
let path = varargs.get_str(ctx); let path = varargs.get_str(ctx);
let real_path_owned = utils::get_cstr_path(ctx, path);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
path
};
let amode: c_int = varargs.get(ctx); let amode: c_int = varargs.get(ctx);
let result = unsafe { access(path, amode) }; let result = unsafe { access(real_path, amode) };
debug!( debug!(
"=> path: {}, amode: {}, result: {}", "=> path: {}, amode: {}, result: {}",
unsafe { std::ffi::CStr::from_ptr(path).to_str().unwrap() }, unsafe { std::ffi::CStr::from_ptr(real_path).to_str().unwrap() },
amode, amode,
result result
); );
@ -261,8 +298,14 @@ pub fn ___syscall34(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int
pub fn ___syscall39(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall39(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall39 (mkdir) {}", _which); debug!("emscripten::___syscall39 (mkdir) {}", _which);
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
let real_path_owned = utils::get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
let mode: u32 = varargs.get(ctx); let mode: u32 = varargs.get(ctx);
unsafe { mkdir(pathname_addr, mode as _) } unsafe { mkdir(real_path, mode as _) }
} }
/// dup /// dup
@ -761,6 +804,12 @@ pub fn ___syscall122(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_in
pub fn ___syscall196(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 { pub fn ___syscall196(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 {
debug!("emscripten::___syscall196 (lstat64) {}", _which); debug!("emscripten::___syscall196 (lstat64) {}", _which);
let path = varargs.get_str(ctx); let path = varargs.get_str(ctx);
let real_path_owned = utils::get_cstr_path(ctx, path);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
path
};
let buf_ptr: u32 = varargs.get(ctx); let buf_ptr: u32 = varargs.get(ctx);
unsafe { unsafe {
let mut stat: stat = std::mem::zeroed(); let mut stat: stat = std::mem::zeroed();
@ -771,9 +820,9 @@ pub fn ___syscall196(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 {
let stat_ptr = &mut stat as *mut stat; let stat_ptr = &mut stat as *mut stat;
#[cfg(target_os = "macos")] #[cfg(target_os = "macos")]
let ret = lstat64(path, stat_ptr); let ret = lstat64(real_path, stat_ptr);
#[cfg(not(target_os = "macos"))] #[cfg(not(target_os = "macos"))]
let ret = lstat(path, stat_ptr); let ret = lstat(real_path, stat_ptr);
debug!("ret: {}", ret); debug!("ret: {}", ret);
if ret != 0 { if ret != 0 {
@ -784,6 +833,45 @@ pub fn ___syscall196(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 {
0 0
} }
// getdents
// dirent structure is
// i64, i64, u16 (280), i8, [i8; 256]
pub fn ___syscall220(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 {
debug!("emscripten::___syscall220");
let fd: i32 = varargs.get(ctx);
let dirp_addr: i32 = varargs.get(ctx);
let count: u32 = varargs.get(ctx);
let dirp = emscripten_memory_pointer!(ctx.memory(0), dirp_addr) as *mut u8;
// need to persist stream across calls?
let dir: *mut libc::DIR = unsafe { libc::fdopendir(fd) };
let mut pos = 0;
let offset = 280;
while pos + offset <= count as usize {
let dirent = unsafe { readdir(dir) };
if dirent.is_null() {
break;
}
#[allow(clippy::cast_ptr_alignment)]
unsafe {
*(dirp.add(pos) as *mut u64) = (*dirent).d_ino;
*(dirp.add(pos + 8) as *mut u64) = pos as u64 + offset as u64;
*(dirp.add(pos + 16) as *mut u16) = offset as u16;
*(dirp.add(pos + 18) as *mut u8) = (*dirent).d_type;
let upper_bound = std::cmp::min((*dirent).d_reclen, 254) as usize;
let mut i = 0;
while i < upper_bound {
*(dirp.add(pos + 19 + i) as *mut i8) = (*dirent).d_name[i];
i += 1;
}
*(dirp.add(pos + 19 + i) as *mut i8) = 0 as i8;
}
pos += offset;
}
pos as i32
}
/// fallocate /// fallocate
pub fn ___syscall324(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int { pub fn ___syscall324(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall324 (fallocate) {}", _which); debug!("emscripten::___syscall324 (fallocate) {}", _which);

26
lib/emscripten/src/syscalls/windows.rs
View File

@ -1,4 +1,4 @@
use crate::utils::copy_cstr_into_wasm; use crate::utils::{copy_cstr_into_wasm, get_cstr_path};
use crate::varargs::VarArgs; use crate::varargs::VarArgs;
use libc::mkdir; use libc::mkdir;
use libc::open; use libc::open;
@ -19,9 +19,15 @@ pub fn ___syscall5(ctx: &mut Ctx, which: c_int, mut varargs: VarArgs) -> c_int {
#[cfg(not(feature = "debug"))] #[cfg(not(feature = "debug"))]
let _ = which; let _ = which;
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
let real_path_owned = get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
let flags: i32 = varargs.get(ctx); let flags: i32 = varargs.get(ctx);
let mode: u32 = varargs.get(ctx); let mode: u32 = varargs.get(ctx);
let path_str = unsafe { std::ffi::CStr::from_ptr(pathname_addr).to_str().unwrap() }; let path_str = unsafe { std::ffi::CStr::from_ptr(real_path).to_str().unwrap() };
match path_str { match path_str {
"/dev/urandom" => { "/dev/urandom" => {
// create a fake urandom file for windows, super hacky // create a fake urandom file for windows, super hacky
@ -47,7 +53,7 @@ pub fn ___syscall5(ctx: &mut Ctx, which: c_int, mut varargs: VarArgs) -> c_int {
fd fd
} }
_ => { _ => {
let fd = unsafe { open(pathname_addr, flags, mode) }; let fd = unsafe { open(real_path, flags, mode) };
debug!( debug!(
"=> pathname: {}, flags: {}, mode: {} = fd: {}\npath: {}", "=> pathname: {}, flags: {}, mode: {} = fd: {}\npath: {}",
path_str, flags, mode, fd, path_str path_str, flags, mode, fd, path_str
@ -95,7 +101,13 @@ pub fn ___syscall39(ctx: &mut Ctx, which: c_int, mut varargs: VarArgs) -> c_int
#[cfg(not(feature = "debug"))] #[cfg(not(feature = "debug"))]
let _ = which; let _ = which;
let pathname_addr = varargs.get_str(ctx); let pathname_addr = varargs.get_str(ctx);
unsafe { mkdir(pathname_addr) } let real_path_owned = get_cstr_path(ctx, pathname_addr);
let real_path = if let Some(ref rp) = real_path_owned {
rp.as_c_str().as_ptr()
} else {
pathname_addr
};
unsafe { mkdir(real_path) }
} }
/// dup /// dup
@ -249,6 +261,12 @@ pub fn ___syscall196(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 {
-1 -1
} }
// getdents
pub fn ___syscall220(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 {
debug!("emscripten::___syscall220");
-1
}
/// fchown /// fchown
pub fn ___syscall207(_ctx: &mut Ctx, _which: c_int, _varargs: VarArgs) -> c_int { pub fn ___syscall207(_ctx: &mut Ctx, _which: c_int, _varargs: VarArgs) -> c_int {
debug!("emscripten::___syscall207 (fchown) {}", _which); debug!("emscripten::___syscall207 (fchown) {}", _which);

56
lib/emscripten/src/utils.rs
View File

@ -5,6 +5,7 @@ use libc::stat;
use std::ffi::CStr; use std::ffi::CStr;
use std::mem::size_of; use std::mem::size_of;
use std::os::raw::c_char; use std::os::raw::c_char;
use std::path::PathBuf;
use std::slice; use std::slice;
use wasmer_runtime_core::memory::Memory; use wasmer_runtime_core::memory::Memory;
use wasmer_runtime_core::{ use wasmer_runtime_core::{
@ -204,6 +205,61 @@ pub fn read_string_from_wasm(memory: &Memory, offset: u32) -> String {
String::from_utf8_lossy(&v).to_owned().to_string() String::from_utf8_lossy(&v).to_owned().to_string()
} }
/// This function trys to find an entry in mapdir
/// translating paths into their correct value
pub fn get_cstr_path(ctx: &mut Ctx, path: *const i8) -> Option<std::ffi::CString> {
use std::collections::VecDeque;
let path_str = unsafe { std::ffi::CStr::from_ptr(path).to_str().unwrap() }.to_string();
let data = get_emscripten_data(ctx);
let path = PathBuf::from(path_str);
let mut prefix_added = false;
let mut components = path.components().collect::<VecDeque<_>>();
// TODO(mark): handle absolute/non-canonical/non-relative paths too (this
// functionality should be shared among the abis)
if components.len() == 1 {
components.push_front(std::path::Component::CurDir);
prefix_added = true;
}
let mut cumulative_path = PathBuf::new();
for c in components.into_iter() {
cumulative_path.push(c);
if let Some(val) = data
.mapped_dirs
.get(&cumulative_path.to_string_lossy().to_string())
{
let rest_of_path = if !prefix_added {
path.strip_prefix(cumulative_path).ok()?
} else {
&path
};
let rebased_path = val.join(rest_of_path);
return std::ffi::CString::new(rebased_path.to_string_lossy().as_bytes()).ok();
}
}
None
}
/// gets the current directory
/// handles mapdir logic
pub fn get_current_directory(ctx: &mut Ctx) -> Option<PathBuf> {
if let Some(val) = get_emscripten_data(ctx).mapped_dirs.get(".") {
return Some(val.clone());
}
std::env::current_dir()
.map(|cwd| {
if let Some(val) = get_emscripten_data(ctx)
.mapped_dirs
.get(&cwd.to_string_lossy().to_string())
{
val.clone()
} else {
cwd
}
})
.ok()
}
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use super::is_emscripten_module; use super::is_emscripten_module;

1
lib/emscripten/tests/emtests/_common.rs
View File

@ -56,6 +56,7 @@ macro_rules! assert_emscripten_output {
$name, $name,
$args, $args,
None, None,
vec![],
).expect("run_emscripten_instance finishes"); ).expect("run_emscripten_instance finishes");
let output = capturer.end().unwrap().0; let output = capturer.end().unwrap().0;

2
lib/llvm-backend/Cargo.toml
View File

@ -7,7 +7,7 @@ edition = "2018"
[dependencies] [dependencies]
wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" } wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" }
inkwell = { git = "https://github.com/wasmerio/inkwell", branch = "llvm7-0" } inkwell = { git = "https://github.com/wasmerio/inkwell", branch = "llvm7-0" }
wasmparser = "0.30.0" wasmparser = "0.29.2"
hashbrown = "0.1.8" hashbrown = "0.1.8"
smallvec = "0.6.8" smallvec = "0.6.8"
goblin = "0.0.20" goblin = "0.0.20"

7
lib/llvm-backend/src/code.rs
View File

@ -8,7 +8,7 @@ use inkwell::{
AddressSpace, FloatPredicate, IntPredicate, AddressSpace, FloatPredicate, IntPredicate,
}; };
use smallvec::SmallVec; use smallvec::SmallVec;
use std::sync::Arc; use std::sync::{Arc, RwLock};
use wasmer_runtime_core::{ use wasmer_runtime_core::{
backend::{Backend, CacheGen, Token}, backend::{Backend, CacheGen, Token},
cache::{Artifact, Error as CacheError}, cache::{Artifact, Error as CacheError},
@ -2505,7 +2505,10 @@ impl ModuleCodeGenerator<LLVMFunctionCodeGenerator, LLVMBackend, CodegenError>
Ok(()) Ok(())
} }
fn next_function(&mut self) -> Result<&mut LLVMFunctionCodeGenerator, CodegenError> { fn next_function(
&mut self,
_module_info: Arc<RwLock<ModuleInfo>>,
) -> Result<&mut LLVMFunctionCodeGenerator, CodegenError> {
// Creates a new function and returns the function-scope code generator for it. // Creates a new function and returns the function-scope code generator for it.
let (context, builder, intrinsics) = match self.functions.last_mut() { let (context, builder, intrinsics) = match self.functions.last_mut() {
Some(x) => ( Some(x) => (

2
lib/runtime-abi/Cargo.toml
View File

@ -13,7 +13,7 @@ wasmer-runtime-core = { path = "../runtime-core" }
hashbrown = "0.1" hashbrown = "0.1"
failure = "0.1" failure = "0.1"
tar = "0.4" tar = "0.4"
wasmparser = "0.30.0" wasmparser = "0.29.2"
zstd = "0.4" zstd = "0.4"
# [target.'cfg(unix)'.dependencies.zbox] # [target.'cfg(unix)'.dependencies.zbox]

2
lib/runtime-core/Cargo.toml
View File

@ -10,7 +10,7 @@ edition = "2018"
[dependencies] [dependencies]
nix = "0.12.0" nix = "0.12.0"
page_size = "0.4.1" page_size = "0.4.1"
wasmparser = "0.30.0" wasmparser = "0.29.2"
parking_lot = "0.7.1" parking_lot = "0.7.1"
lazy_static = "1.2.0" lazy_static = "1.2.0"
indexmap = "1.0.2" indexmap = "1.0.2"

35
lib/runtime-core/src/codegen.rs
View File

@ -11,6 +11,8 @@ use smallvec::SmallVec;
use std::fmt; use std::fmt;
use std::fmt::Debug; use std::fmt::Debug;
use std::marker::PhantomData; use std::marker::PhantomData;
use std::sync::{Arc, RwLock};
use wasmparser::{self, WasmDecoder};
use wasmparser::{Operator, Type as WpType}; use wasmparser::{Operator, Type as WpType};
#[derive(Debug)] #[derive(Debug)]
@ -54,13 +56,14 @@ pub trait ModuleCodeGenerator<FCG: FunctionCodeGenerator<E>, RM: RunnableModule,
} }
/// Adds an import function. /// Adds an import function.
fn feed_import_function(&mut self) -> Result<(), E>; fn feed_import_function(&mut self) -> Result<(), E>;
fn feed_signatures(&mut self, signatures: Map<SigIndex, FuncSig>) -> Result<(), E>; fn feed_signatures(&mut self, signatures: Map<SigIndex, FuncSig>) -> Result<(), E>;
/// Sets function signatures. /// Sets function signatures.
fn feed_function_signatures(&mut self, assoc: Map<FuncIndex, SigIndex>) -> Result<(), E>; fn feed_function_signatures(&mut self, assoc: Map<FuncIndex, SigIndex>) -> Result<(), E>;
/// Checks the precondition for a module. /// Checks the precondition for a module.
fn check_precondition(&mut self, module_info: &ModuleInfo) -> Result<(), E>; fn check_precondition(&mut self, module_info: &ModuleInfo) -> Result<(), E>;
/// Creates a new function and returns the function-scope code generator for it. /// Creates a new function and returns the function-scope code generator for it.
fn next_function(&mut self) -> Result<&mut FCG, E>; fn next_function(&mut self, module_info: Arc<RwLock<ModuleInfo>>) -> Result<&mut FCG, E>;
/// Finalizes this module. /// Finalizes this module.
fn finalize(self, module_info: &ModuleInfo) -> Result<(RM, Box<dyn CacheGen>), E>; fn finalize(self, module_info: &ModuleInfo) -> Result<(RM, Box<dyn CacheGen>), E>;
@ -125,6 +128,20 @@ impl<
} }
} }
fn validate(bytes: &[u8]) -> CompileResult<()> {
let mut parser = wasmparser::ValidatingParser::new(bytes, None);
loop {
let state = parser.read();
match *state {
wasmparser::ParserState::EndWasm => break Ok(()),
wasmparser::ParserState::Error(err) => Err(CompileError::ValidationError {
msg: err.message.to_string(),
})?,
_ => {}
}
}
}
impl< impl<
MCG: ModuleCodeGenerator<FCG, RM, E>, MCG: ModuleCodeGenerator<FCG, RM, E>,
FCG: FunctionCodeGenerator<E>, FCG: FunctionCodeGenerator<E>,
@ -139,6 +156,10 @@ impl<
compiler_config: CompilerConfig, compiler_config: CompilerConfig,
_: Token, _: Token,
) -> CompileResult<ModuleInner> { ) -> CompileResult<ModuleInner> {
if requires_pre_validation(MCG::backend_id()) {
validate(wasm)?;
}
let mut mcg = MCG::new(); let mut mcg = MCG::new();
let mut chain = (self.middleware_chain_generator)(); let mut chain = (self.middleware_chain_generator)();
let info = crate::parse::read_module( let info = crate::parse::read_module(
@ -149,14 +170,14 @@ impl<
&compiler_config, &compiler_config,
)?; )?;
let (exec_context, cache_gen) = let (exec_context, cache_gen) =
mcg.finalize(&info) mcg.finalize(&info.read().unwrap())
.map_err(|x| CompileError::InternalError { .map_err(|x| CompileError::InternalError {
msg: format!("{:?}", x), msg: format!("{:?}", x),
})?; })?;
Ok(ModuleInner { Ok(ModuleInner {
cache_gen, cache_gen,
runnable_module: Box::new(exec_context), runnable_module: Box::new(exec_context),
info, info: Arc::try_unwrap(info).unwrap().into_inner().unwrap(),
}) })
} }
@ -169,6 +190,14 @@ impl<
} }
} }
fn requires_pre_validation(backend: Backend) -> bool {
match backend {
Backend::Cranelift => true,
Backend::LLVM => false,
Backend::Singlepass => false,
}
}
pub struct EventSink<'a, 'b> { pub struct EventSink<'a, 'b> {
buffer: SmallVec<[Event<'a, 'b>; 2]>, buffer: SmallVec<[Event<'a, 'b>; 2]>,
} }

2
lib/runtime-core/src/module.rs
View File

@ -27,7 +27,7 @@ pub struct ModuleInner {
pub info: ModuleInfo, pub info: ModuleInfo,
} }
#[derive(Clone, Serialize, Deserialize)] #[derive(Clone, Debug, Serialize, Deserialize)]
pub struct ModuleInfo { pub struct ModuleInfo {
// This are strictly local and the typsystem ensures that. // This are strictly local and the typsystem ensures that.
pub memories: Map<LocalMemoryIndex, MemoryDescriptor>, pub memories: Map<LocalMemoryIndex, MemoryDescriptor>,

89
lib/runtime-core/src/parse.rs
View File

@ -16,6 +16,7 @@ use crate::{
}; };
use hashbrown::HashMap; use hashbrown::HashMap;
use std::fmt::Debug; use std::fmt::Debug;
use std::sync::{Arc, RwLock};
use wasmparser::{ use wasmparser::{
BinaryReaderError, ExternalKind, FuncType, ImportSectionEntryType, Operator, Type as WpType, BinaryReaderError, ExternalKind, FuncType, ImportSectionEntryType, Operator, Type as WpType,
WasmDecoder, WasmDecoder,
@ -52,10 +53,10 @@ pub fn read_module<
mcg: &mut MCG, mcg: &mut MCG,
middlewares: &mut MiddlewareChain, middlewares: &mut MiddlewareChain,
compiler_config: &CompilerConfig, compiler_config: &CompilerConfig,
) -> Result<ModuleInfo, LoadError> { ) -> Result<Arc<RwLock<ModuleInfo>>, LoadError> {
mcg.feed_compiler_config(compiler_config) mcg.feed_compiler_config(compiler_config)
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
let mut info = ModuleInfo { let info = Arc::new(RwLock::new(ModuleInfo {
memories: Map::new(), memories: Map::new(),
globals: Map::new(), globals: Map::new(),
tables: Map::new(), tables: Map::new(),
@ -82,7 +83,7 @@ pub fn read_module<
em_symbol_map: compiler_config.symbol_map.clone(), em_symbol_map: compiler_config.symbol_map.clone(),
custom_sections: HashMap::new(), custom_sections: HashMap::new(),
}; }));
let mut parser = wasmparser::ValidatingParser::new( let mut parser = wasmparser::ValidatingParser::new(
wasm, wasm,
@ -105,10 +106,13 @@ pub fn read_module<
use wasmparser::ParserState; use wasmparser::ParserState;
let state = parser.read(); let state = parser.read();
match *state { match *state {
ParserState::EndWasm => break Ok(info), ParserState::EndWasm => break,
ParserState::Error(err) => Err(LoadError::Parse(err))?, ParserState::Error(err) => Err(LoadError::Parse(err))?,
ParserState::TypeSectionEntry(ref ty) => { ParserState::TypeSectionEntry(ref ty) => {
info.signatures.push(func_type_to_func_sig(ty)?); info.write()
.unwrap()
.signatures
.push(func_type_to_func_sig(ty)?);
} }
ParserState::ImportSectionEntry { module, field, ty } => { ParserState::ImportSectionEntry { module, field, ty } => {
let namespace_index = namespace_builder.as_mut().unwrap().register(module); let namespace_index = namespace_builder.as_mut().unwrap().register(module);
@ -121,8 +125,8 @@ pub fn read_module<
match ty { match ty {
ImportSectionEntryType::Function(sigindex) => { ImportSectionEntryType::Function(sigindex) => {
let sigindex = SigIndex::new(sigindex as usize); let sigindex = SigIndex::new(sigindex as usize);
info.imported_functions.push(import_name); info.write().unwrap().imported_functions.push(import_name);
info.func_assoc.push(sigindex); info.write().unwrap().func_assoc.push(sigindex);
mcg.feed_import_function() mcg.feed_import_function()
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
} }
@ -134,7 +138,10 @@ pub fn read_module<
maximum: table_ty.limits.maximum, maximum: table_ty.limits.maximum,
}; };
info.imported_tables.push((import_name, table_desc)); info.write()
.unwrap()
.imported_tables
.push((import_name, table_desc));
} }
ImportSectionEntryType::Memory(memory_ty) => { ImportSectionEntryType::Memory(memory_ty) => {
let mem_desc = MemoryDescriptor { let mem_desc = MemoryDescriptor {
@ -142,20 +149,26 @@ pub fn read_module<
maximum: memory_ty.limits.maximum.map(|max| Pages(max)), maximum: memory_ty.limits.maximum.map(|max| Pages(max)),
shared: memory_ty.shared, shared: memory_ty.shared,
}; };
info.imported_memories.push((import_name, mem_desc)); info.write()
.unwrap()
.imported_memories
.push((import_name, mem_desc));
} }
ImportSectionEntryType::Global(global_ty) => { ImportSectionEntryType::Global(global_ty) => {
let global_desc = GlobalDescriptor { let global_desc = GlobalDescriptor {
mutable: global_ty.mutable, mutable: global_ty.mutable,
ty: wp_type_to_type(global_ty.content_type)?, ty: wp_type_to_type(global_ty.content_type)?,
}; };
info.imported_globals.push((import_name, global_desc)); info.write()
.unwrap()
.imported_globals
.push((import_name, global_desc));
} }
} }
} }
ParserState::FunctionSectionEntry(sigindex) => { ParserState::FunctionSectionEntry(sigindex) => {
let sigindex = SigIndex::new(sigindex as usize); let sigindex = SigIndex::new(sigindex as usize);
info.func_assoc.push(sigindex); info.write().unwrap().func_assoc.push(sigindex);
} }
ParserState::TableSectionEntry(table_ty) => { ParserState::TableSectionEntry(table_ty) => {
let table_desc = TableDescriptor { let table_desc = TableDescriptor {
@ -164,7 +177,7 @@ pub fn read_module<
maximum: table_ty.limits.maximum, maximum: table_ty.limits.maximum,
}; };
info.tables.push(table_desc); info.write().unwrap().tables.push(table_desc);
} }
ParserState::MemorySectionEntry(memory_ty) => { ParserState::MemorySectionEntry(memory_ty) => {
let mem_desc = MemoryDescriptor { let mem_desc = MemoryDescriptor {
@ -173,7 +186,7 @@ pub fn read_module<
shared: memory_ty.shared, shared: memory_ty.shared,
}; };
info.memories.push(mem_desc); info.write().unwrap().memories.push(mem_desc);
} }
ParserState::ExportSectionEntry { field, kind, index } => { ParserState::ExportSectionEntry { field, kind, index } => {
let export_index = match kind { let export_index = match kind {
@ -183,42 +196,51 @@ pub fn read_module<
ExternalKind::Global => ExportIndex::Global(GlobalIndex::new(index as usize)), ExternalKind::Global => ExportIndex::Global(GlobalIndex::new(index as usize)),
}; };
info.exports.insert(field.to_string(), export_index); info.write()
.unwrap()
.exports
.insert(field.to_string(), export_index);
} }
ParserState::StartSectionEntry(start_index) => { ParserState::StartSectionEntry(start_index) => {
info.start_func = Some(FuncIndex::new(start_index as usize)); info.write().unwrap().start_func = Some(FuncIndex::new(start_index as usize));
} }
ParserState::BeginFunctionBody { .. } => { ParserState::BeginFunctionBody { .. } => {
let id = func_count.wrapping_add(1); let id = func_count.wrapping_add(1);
func_count = id; func_count = id;
if func_count == 0 { if func_count == 0 {
info.namespace_table = namespace_builder.take().unwrap().finish(); info.write().unwrap().namespace_table =
info.name_table = name_builder.take().unwrap().finish(); namespace_builder.take().unwrap().finish();
mcg.feed_signatures(info.signatures.clone()) info.write().unwrap().name_table = name_builder.take().unwrap().finish();
mcg.feed_signatures(info.read().unwrap().signatures.clone())
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
mcg.feed_function_signatures(info.func_assoc.clone()) mcg.feed_function_signatures(info.read().unwrap().func_assoc.clone())
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
mcg.check_precondition(&info) mcg.check_precondition(&info.read().unwrap())
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
} }
let fcg = mcg let fcg = mcg
.next_function() .next_function(Arc::clone(&info))
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
middlewares middlewares
.run( .run(
Some(fcg), Some(fcg),
Event::Internal(InternalEvent::FunctionBegin(id as u32)), Event::Internal(InternalEvent::FunctionBegin(id as u32)),
&info, &info.read().unwrap(),
) )
.map_err(|x| LoadError::Codegen(x))?; .map_err(|x| LoadError::Codegen(x))?;
let sig = info let info_read = info.read().unwrap();
let sig = info_read
.signatures .signatures
.get( .get(
*info *info
.read()
.unwrap()
.func_assoc .func_assoc
.get(FuncIndex::new(id as usize + info.imported_functions.len())) .get(FuncIndex::new(
id as usize + info.read().unwrap().imported_functions.len(),
))
.unwrap(), .unwrap(),
) )
.unwrap(); .unwrap();
@ -235,22 +257,22 @@ pub fn read_module<
loop { loop {
let state = parser.read(); let state = parser.read();
match *state { match state {
ParserState::Error(err) => return Err(LoadError::Parse(err)), ParserState::Error(err) => return Err(LoadError::Parse(*err)),
ParserState::FunctionBodyLocals { ref locals } => { ParserState::FunctionBodyLocals { ref locals } => {
for &(count, ty) in locals.iter() { for &(count, ty) in locals.iter() {
fcg.feed_local(ty, count as usize) fcg.feed_local(ty, count as usize)
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
} }
} }
ParserState::CodeOperator(ref op) => { ParserState::CodeOperator(op) => {
if !body_begun { if !body_begun {
body_begun = true; body_begun = true;
fcg.begin_body(&info) fcg.begin_body(&info.read().unwrap())
.map_err(|x| LoadError::Codegen(format!("{:?}", x)))?; .map_err(|x| LoadError::Codegen(format!("{:?}", x)))?;
} }
middlewares middlewares
.run(Some(fcg), Event::Wasm(op), &info) .run(Some(fcg), Event::Wasm(op), &info.read().unwrap())
.map_err(|x| LoadError::Codegen(x))?; .map_err(|x| LoadError::Codegen(x))?;
} }
ParserState::EndFunctionBody => break, ParserState::EndFunctionBody => break,
@ -261,7 +283,7 @@ pub fn read_module<
.run( .run(
Some(fcg), Some(fcg),
Event::Internal(InternalEvent::FunctionEnd), Event::Internal(InternalEvent::FunctionEnd),
&info, &info.read().unwrap(),
) )
.map_err(|x| LoadError::Codegen(x))?; .map_err(|x| LoadError::Codegen(x))?;
fcg.finalize() fcg.finalize()
@ -301,7 +323,7 @@ pub fn read_module<
elements: elements.unwrap(), elements: elements.unwrap(),
}; };
info.elem_initializers.push(table_init); info.write().unwrap().elem_initializers.push(table_init);
} }
ParserState::BeginActiveDataSectionEntry(memory_index) => { ParserState::BeginActiveDataSectionEntry(memory_index) => {
let memory_index = MemoryIndex::new(memory_index as usize); let memory_index = MemoryIndex::new(memory_index as usize);
@ -332,7 +354,7 @@ pub fn read_module<
base: base.unwrap(), base: base.unwrap(),
data, data,
}; };
info.data_initializers.push(data_init); info.write().unwrap().data_initializers.push(data_init);
} }
ParserState::BeginGlobalSectionEntry(ty) => { ParserState::BeginGlobalSectionEntry(ty) => {
let init = loop { let init = loop {
@ -353,12 +375,13 @@ pub fn read_module<
let global_init = GlobalInit { desc, init }; let global_init = GlobalInit { desc, init };
info.globals.push(global_init); info.write().unwrap().globals.push(global_init);
} }
_ => {} _ => {}
} }
} }
Ok(info)
} }
pub fn wp_type_to_type(ty: WpType) -> Result<Type, BinaryReaderError> { pub fn wp_type_to_type(ty: WpType) -> Result<Type, BinaryReaderError> {

51
lib/runtime/src/cache.rs
View File

@ -113,3 +113,54 @@ impl Cache for FileSystemCache {
Ok(()) Ok(())
} }
} }
#[cfg(all(test, not(feature = "singlepass")))]
mod tests {
use super::*;
use std::env;
#[test]
fn test_file_system_cache_run() {
use crate::{compile, imports, Func};
use wabt::wat2wasm;
static WAT: &'static str = r#"
(module
(type $t0 (func (param i32) (result i32)))
(func $add_one (export "add_one") (type $t0) (param $p0 i32) (result i32)
get_local $p0
i32.const 1
i32.add))
"#;
let wasm = wat2wasm(WAT).unwrap();
let module = compile(&wasm).unwrap();
let cache_dir = env::temp_dir();
println!("test temp_dir {:?}", cache_dir);
let mut fs_cache = unsafe {
FileSystemCache::new(cache_dir)
.map_err(|e| format!("Cache error: {:?}", e))
.unwrap()
};
// store module
let key = WasmHash::generate(&wasm);
fs_cache.store(key, module.clone()).unwrap();
// load module
let cached_module = fs_cache.load(key).unwrap();
let import_object = imports! {};
let instance = cached_module.instantiate(&import_object).unwrap();
let add_one: Func<i32, i32> = instance.func("add_one").unwrap();
let value = add_one.call(42).unwrap();
// verify it works
assert_eq!(value, 43);
}
}

2
lib/singlepass-backend/Cargo.toml
View File

@ -9,7 +9,7 @@ edition = "2018"
[dependencies] [dependencies]
wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" } wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" }
wasmparser = "0.30.0" wasmparser = "0.29.2"
dynasm = "0.3.2" dynasm = "0.3.2"
dynasmrt = "0.3.1" dynasmrt = "0.3.1"
lazy_static = "1.2.0" lazy_static = "1.2.0"

12
lib/singlepass-backend/src/codegen_x64.rs
View File

@ -8,7 +8,11 @@ use dynasmrt::{
}; };
use smallvec::SmallVec; use smallvec::SmallVec;
use std::ptr::NonNull; use std::ptr::NonNull;
use std::{any::Any, collections::HashMap, sync::Arc}; use std::{
any::Any,
collections::HashMap,
sync::{Arc, RwLock},
};
use wasmer_runtime_core::{ use wasmer_runtime_core::{
backend::{ backend::{
sys::Memory, Backend, CacheGen, CompilerConfig, MemoryBoundCheckMode, RunnableModule, Token, sys::Memory, Backend, CacheGen, CompilerConfig, MemoryBoundCheckMode, RunnableModule, Token,
@ -319,7 +323,10 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
Ok(()) Ok(())
} }
fn next_function(&mut self) -> Result<&mut X64FunctionCode, CodegenError> { fn next_function(
&mut self,
_module_info: Arc<RwLock<ModuleInfo>>,
) -> Result<&mut X64FunctionCode, CodegenError> {
let (mut assembler, mut function_labels, breakpoints) = match self.functions.last_mut() { let (mut assembler, mut function_labels, breakpoints) = match self.functions.last_mut() {
Some(x) => ( Some(x) => (
x.assembler.take().unwrap(), x.assembler.take().unwrap(),
@ -332,6 +339,7 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
HashMap::new(), HashMap::new(),
), ),
}; };
let begin_offset = assembler.offset(); let begin_offset = assembler.offset();
let begin_label_info = function_labels let begin_label_info = function_labels
.entry(self.functions.len() + self.func_import_count) .entry(self.functions.len() + self.func_import_count)

31
lib/spectests/examples/test.rs
View File

@ -1,6 +1,6 @@
use wabt::wat2wasm; use wabt::wat2wasm;
use wasmer_clif_backend::CraneliftCompiler; use wasmer_clif_backend::CraneliftCompiler;
use wasmer_runtime_core::{import::ImportObject, Instance}; use wasmer_runtime_core::{backend::Compiler, import::ImportObject, Instance};
fn main() { fn main() {
let instance = create_module_1(); let instance = create_module_1();
@ -24,13 +24,38 @@ fn create_module_1() -> Instance {
(elem (;1;) (i32.const 9) 1)) (elem (;1;) (i32.const 9) 1))
"#; "#;
let wasm_binary = wat2wasm(module_str.as_bytes()).expect("WAST not valid or malformed"); let wasm_binary = wat2wasm(module_str.as_bytes()).expect("WAST not valid or malformed");
let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &CraneliftCompiler::new()) let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &get_compiler())
.expect("WASM can't be compiled"); .expect("WASM can't be compiled");
module module
.instantiate(&generate_imports()) .instantiate(&generate_imports())
.expect("WASM can't be instantiated") .expect("WASM can't be instantiated")
} }
#[cfg(feature = "clif")]
fn get_compiler() -> impl Compiler {
use wasmer_clif_backend::CraneliftCompiler;
CraneliftCompiler::new()
}
#[cfg(feature = "llvm")]
fn get_compiler() -> impl Compiler {
use wasmer_llvm_backend::LLVMCompiler;
LLVMCompiler::new()
}
#[cfg(feature = "singlepass")]
fn get_compiler() -> impl Compiler {
use wasmer_singlepass_backend::SinglePassCompiler;
SinglePassCompiler::new()
}
#[cfg(not(any(feature = "llvm", feature = "clif", feature = "singlepass")))]
fn get_compiler() -> impl Compiler {
panic!("compiler not specified, activate a compiler via features");
use wasmer_clif_backend::CraneliftCompiler;
CraneliftCompiler::new()
}
static IMPORT_MODULE: &str = r#" static IMPORT_MODULE: &str = r#"
(module (module
(type $t0 (func (param i32))) (type $t0 (func (param i32)))
@ -44,7 +69,7 @@ static IMPORT_MODULE: &str = r#"
pub fn generate_imports() -> ImportObject { pub fn generate_imports() -> ImportObject {
let wasm_binary = wat2wasm(IMPORT_MODULE.as_bytes()).expect("WAST not valid or malformed"); let wasm_binary = wat2wasm(IMPORT_MODULE.as_bytes()).expect("WAST not valid or malformed");
let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &CraneliftCompiler::new()) let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &get_compiler())
.expect("WASM can't be compiled"); .expect("WASM can't be compiled");
let instance = module let instance = module
.instantiate(&ImportObject::new()) .instantiate(&ImportObject::new())

55
lib/wasi/build/wasitests.rs
View File

@ -58,6 +58,8 @@ pub fn compile(file: &str, ignores: &HashSet<String>) -> Option<String> {
let result = Command::new(&normalized_name) let result = Command::new(&normalized_name)
.output() .output()
.expect("Failed to execute native program"); .expect("Failed to execute native program");
std::fs::remove_file(&normalized_name).expect("could not delete executable");
let wasm_out_name = format!("{}.wasm", &normalized_name); let wasm_out_name = format!("{}.wasm", &normalized_name);
Command::new("rustc") Command::new("rustc")
@ -76,25 +78,31 @@ pub fn compile(file: &str, ignores: &HashSet<String>) -> Option<String> {
}; };
let src_code = fs::read_to_string(file).expect("read src file"); let src_code = fs::read_to_string(file).expect("read src file");
let args = extract_args_from_source_file(&src_code); let args = extract_args_from_source_file(&src_code).unwrap_or_default();
let mapdir_args = if let Some(a) = args { let mapdir_args = {
if !a.mapdir.is_empty() { let mut out_str = String::new();
let mut out_str = String::new(); out_str.push_str("vec![");
out_str.push_str("vec!["); for (alias, real_dir) in args.mapdir {
for (alias, real_dir) in a.mapdir { out_str.push_str(&format!(
out_str.push_str(&format!( "(\"{}\".to_string(), \"{}\".to_string()),",
"(\"{}\".to_string(), \"{}\".to_string()),", alias, real_dir
alias, real_dir ));
));
}
out_str.push_str("]");
out_str
} else {
"vec![]".to_string()
} }
} else { out_str.push_str("]");
"vec![]".to_string() out_str
};
let envvar_args = {
let mut out_str = String::new();
out_str.push_str("vec![");
for entry in args.envvars {
out_str.push_str(&format!("\"{}={}\".to_string(),", entry.0, entry.1));
}
out_str.push_str("]");
out_str
}; };
let contents = format!( let contents = format!(
@ -104,6 +112,7 @@ fn test_{rs_module_name}() {{
\"../../{module_path}\", \"../../{module_path}\",
\"{rs_module_name}\", \"{rs_module_name}\",
{mapdir_args}, {mapdir_args},
{envvar_args},
\"../../{test_output_path}\" \"../../{test_output_path}\"
); );
}} }}
@ -113,6 +122,7 @@ fn test_{rs_module_name}() {{
rs_module_name = rs_module_name, rs_module_name = rs_module_name,
test_output_path = format!("{}.out", normalized_name), test_output_path = format!("{}.out", normalized_name),
mapdir_args = mapdir_args, mapdir_args = mapdir_args,
envvar_args = envvar_args
); );
let rust_test_filepath = format!( let rust_test_filepath = format!(
concat!(env!("CARGO_MANIFEST_DIR"), "/tests/{}.rs"), concat!(env!("CARGO_MANIFEST_DIR"), "/tests/{}.rs"),
@ -167,14 +177,16 @@ fn read_ignore_list() -> HashSet<String> {
.collect() .collect()
} }
#[derive(Debug, Default)]
struct Args { struct Args {
pub mapdir: Vec<(String, String)>, pub mapdir: Vec<(String, String)>,
pub envvars: Vec<(String, String)>,
} }
/// Pulls args to the program out of a comment at the top of the file starting with "// Args:" /// Pulls args to the program out of a comment at the top of the file starting with "// Args:"
fn extract_args_from_source_file(source_code: &str) -> Option<Args> { fn extract_args_from_source_file(source_code: &str) -> Option<Args> {
if source_code.starts_with("// Args:") { if source_code.starts_with("// Args:") {
let mut args = Args { mapdir: vec![] }; let mut args = Args::default();
for arg_line in source_code for arg_line in source_code
.lines() .lines()
.skip(1) .skip(1)
@ -196,6 +208,13 @@ fn extract_args_from_source_file(source_code: &str) -> Option<Args> {
); );
} }
} }
"env" => {
if let [name, val] = &tokenized[2].split('=').collect::<Vec<&str>>()[..] {
args.envvars.push((name.to_string(), val.to_string()));
} else {
eprintln!("Parse error in env {} not parsed correctly", &tokenized[2]);
}
}
e => { e => {
eprintln!("WARN: comment arg: {} is not supported", e); eprintln!("WARN: comment arg: {} is not supported", e);
} }

23
lib/wasi/src/syscalls/mod.rs
View File

@ -195,7 +195,13 @@ pub fn clock_time_get(
let memory = ctx.memory(0); let memory = ctx.memory(0);
let out_addr = wasi_try!(time.deref(memory)); let out_addr = wasi_try!(time.deref(memory));
platform_clock_time_get(clock_id, precision, out_addr) let result = platform_clock_time_get(clock_id, precision, out_addr);
debug!(
"time: {} => {}",
wasi_try!(time.deref(memory)).get(),
result
);
result
} }
/// ### `environ_get()` /// ### `environ_get()`
@ -215,7 +221,7 @@ pub fn environ_get(
let state = get_wasi_state(ctx); let state = get_wasi_state(ctx);
let memory = ctx.memory(0); let memory = ctx.memory(0);
write_buffer_array(memory, &*state.args, environ, environ_buf) write_buffer_array(memory, &*state.envs, environ, environ_buf)
} }
/// ### `environ_sizes_get()` /// ### `environ_sizes_get()`
@ -238,8 +244,15 @@ pub fn environ_sizes_get(
let state = get_wasi_state(ctx); let state = get_wasi_state(ctx);
environ_count.set(state.envs.len() as u32); let env_var_count = state.envs.len() as u32;
environ_buf_size.set(state.envs.iter().map(|v| v.len() as u32).sum()); let env_buf_size = state.envs.iter().map(|v| v.len() as u32 + 1).sum();
environ_count.set(env_var_count);
environ_buf_size.set(env_buf_size);
debug!(
"env_var_count: {}, env_buf_size: {}",
env_var_count, env_buf_size
);
__WASI_ESUCCESS __WASI_ESUCCESS
} }
@ -1665,7 +1678,7 @@ pub fn proc_raise(ctx: &mut Ctx, sig: __wasi_signal_t) -> __wasi_errno_t {
/// - `size_t buf_len` /// - `size_t buf_len`
/// The number of bytes that will be written /// The number of bytes that will be written
pub fn random_get(ctx: &mut Ctx, buf: WasmPtr<u8, Array>, buf_len: u32) -> __wasi_errno_t { pub fn random_get(ctx: &mut Ctx, buf: WasmPtr<u8, Array>, buf_len: u32) -> __wasi_errno_t {
debug!("wasi::random_get"); debug!("wasi::random_get buf_len: {}", buf_len);
let mut rng = thread_rng(); let mut rng = thread_rng();
let memory = ctx.memory(0); let memory = ctx.memory(0);

2
lib/wasi/tests/wasitests/_common.rs
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@ -1,5 +1,5 @@
macro_rules! assert_wasi_output { macro_rules! assert_wasi_output {
($file:expr, $name:expr, $mapdir_args:expr, $expected:expr) => {{ ($file:expr, $name:expr, $mapdir_args:expr, $envvar_args:expr, $expected:expr) => {{
use wasmer_dev_utils::stdio::StdioCapturer; use wasmer_dev_utils::stdio::StdioCapturer;
use wasmer_runtime_core::{backend::Compiler, Func}; use wasmer_runtime_core::{backend::Compiler, Func};
use wasmer_wasi::generate_import_object; use wasmer_wasi::generate_import_object;

1
lib/wasi/tests/wasitests/create_dir.rs
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@ -5,6 +5,7 @@ fn test_create_dir() {
"../../wasitests/create_dir.wasm", "../../wasitests/create_dir.wasm",
"create_dir", "create_dir",
vec![], vec![],
vec![],
"../../wasitests/create_dir.out" "../../wasitests/create_dir.out"
); );
} }

10
lib/wasi/tests/wasitests/envvar.rs Normal file
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@ -0,0 +1,10 @@
#[test]
fn test_envvar() {
assert_wasi_output!(
"../../wasitests/envvar.wasm",
"envvar",
vec![],
vec![],
"../../wasitests/envvar.out"
);
}

1
lib/wasi/tests/wasitests/file_metadata.rs
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@ -4,6 +4,7 @@ fn test_file_metadata() {
"../../wasitests/file_metadata.wasm", "../../wasitests/file_metadata.wasm",
"file_metadata", "file_metadata",
vec![], vec![],
vec![],
"../../wasitests/file_metadata.out" "../../wasitests/file_metadata.out"
); );
} }

1
lib/wasi/tests/wasitests/fs_sandbox_test.rs
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@ -4,6 +4,7 @@ fn test_fs_sandbox_test() {
"../../wasitests/fs_sandbox_test.wasm", "../../wasitests/fs_sandbox_test.wasm",
"fs_sandbox_test", "fs_sandbox_test",
vec![], vec![],
vec![],
"../../wasitests/fs_sandbox_test.out" "../../wasitests/fs_sandbox_test.out"
); );
} }

1
lib/wasi/tests/wasitests/hello.rs
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@ -4,6 +4,7 @@ fn test_hello() {
"../../wasitests/hello.wasm", "../../wasitests/hello.wasm",
"hello", "hello",
vec![], vec![],
vec![],
"../../wasitests/hello.out" "../../wasitests/hello.out"
); );
} }

1
lib/wasi/tests/wasitests/mapdir.rs
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@ -4,6 +4,7 @@ fn test_mapdir() {
"../../wasitests/mapdir.wasm", "../../wasitests/mapdir.wasm",
"mapdir", "mapdir",
vec![], vec![],
vec![],
"../../wasitests/mapdir.out" "../../wasitests/mapdir.out"
); );
} }

1
lib/wasi/tests/wasitests/mod.rs
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@ -6,6 +6,7 @@
#[macro_use] #[macro_use]
mod _common; mod _common;
mod create_dir; mod create_dir;
mod envvar;
mod file_metadata; mod file_metadata;
mod fs_sandbox_test; mod fs_sandbox_test;
mod hello; mod hello;

1
lib/wasi/tests/wasitests/quine.rs
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@ -4,6 +4,7 @@ fn test_quine() {
"../../wasitests/quine.wasm", "../../wasitests/quine.wasm",
"quine", "quine",
vec![], vec![],
vec![],
"../../wasitests/quine.out" "../../wasitests/quine.out"
); );
} }

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6
lib/wasi/wasitests/envvar.out Normal file
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@ -0,0 +1,6 @@
Env vars:
CAT=2
DOG=1
DOG Ok("1")
DOG_TYPE Err(NotPresent)
SET VAR Ok("HELLO")

38
lib/wasi/wasitests/envvar.rs Normal file
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@ -0,0 +1,38 @@
// Args:
// env: DOG=1
// env: CAT=2
use std::env;
fn get_env_var(var_name: &str) -> Result<String, env::VarError> {
#[cfg(not(target = "wasi"))]
match var_name {
"DOG" => Ok("1".to_string()),
"CAT" => Ok("2".to_string()),
_ => Err(env::VarError::NotPresent),
}
#[cfg(target = "wasi")]
env::var(var_name)
}
fn main() {
#[cfg(not(target = "wasi"))]
let mut env_vars = vec!["DOG=1".to_string(), "CAT=2".to_string()];
#[cfg(target = "wasi")]
let mut env_vars = env::vars()
.map(|(key, value)| format!("{}={}", key, value))
.collect::<Vec<String>>();
env_vars.sort();
println!("Env vars:");
for e in env_vars {
println!("{}", e);
}
env::set_var("WASI_ENVVAR_TEST", "HELLO");
println!("DOG {:?}", get_env_var("DOG"));
println!("DOG_TYPE {:?}", get_env_var("DOG_TYPE"));
println!("SET VAR {:?}", env::var("WASI_ENVVAR_TEST"));
}

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94
src/bin/wasmer.rs
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@ -101,6 +101,10 @@ struct Run {
#[structopt(long = "mapdir", multiple = true)] #[structopt(long = "mapdir", multiple = true)]
mapped_dirs: Vec<String>, mapped_dirs: Vec<String>,
/// Pass custom environment variables
#[structopt(long = "env", multiple = true)]
env_vars: Vec<String>,
/// Custom code loader /// Custom code loader
#[structopt( #[structopt(
long = "loader", long = "loader",
@ -223,6 +227,47 @@ fn get_cache_dir() -> PathBuf {
} }
} }
fn get_mapped_dirs(input: &[String]) -> Result<Vec<(String, PathBuf)>, String> {
let mut md = vec![];
for entry in input.iter() {
if let [alias, real_dir] = entry.split(':').collect::<Vec<&str>>()[..] {
let pb = PathBuf::from(&real_dir);
if let Ok(pb_metadata) = pb.metadata() {
if !pb_metadata.is_dir() {
return Err(format!(
"\"{}\" exists, but it is not a directory",
&real_dir
));
}
} else {
return Err(format!("Directory \"{}\" does not exist", &real_dir));
}
md.push((alias.to_string(), pb));
continue;
}
return Err(format!(
"Directory mappings must consist of two paths separate by a colon. Found {}",
&entry
));
}
Ok(md)
}
fn get_env_var_args(input: &[String]) -> Result<Vec<(&str, &str)>, String> {
let mut ev = vec![];
for entry in input.iter() {
if let [env_var, value] = entry.split('=').collect::<Vec<&str>>()[..] {
ev.push((env_var, value));
} else {
return Err(format!(
"Env vars must be of the form <var_name>=<value>. Found {}",
&entry
));
}
}
Ok(ev)
}
/// Execute a wasm/wat file /// Execute a wasm/wat file
fn execute_wasm(options: &Run) -> Result<(), String> { fn execute_wasm(options: &Run) -> Result<(), String> {
// force disable caching on windows // force disable caching on windows
@ -231,31 +276,8 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
#[cfg(not(target_os = "windows"))] #[cfg(not(target_os = "windows"))]
let disable_cache = options.disable_cache; let disable_cache = options.disable_cache;
let mapped_dirs = { let mapped_dirs = get_mapped_dirs(&options.mapped_dirs[..])?;
let mut md = vec![]; let env_vars = get_env_var_args(&options.env_vars[..])?;
for entry in options.mapped_dirs.iter() {
if let &[alias, real_dir] = &entry.split(':').collect::<Vec<&str>>()[..] {
let pb = PathBuf::from(&real_dir);
if let Ok(pb_metadata) = pb.metadata() {
if !pb_metadata.is_dir() {
return Err(format!(
"\"{}\" exists, but it is not a directory",
&real_dir
));
}
} else {
return Err(format!("Directory \"{}\" does not exist", &real_dir));
}
md.push((alias.to_string(), pb));
continue;
}
return Err(format!(
"Directory mappings must consist of two paths separate by a colon. Found {}",
&entry
));
}
md
};
let wasm_path = &options.path; let wasm_path = &options.path;
let mut wasm_binary: Vec<u8> = read_file_contents(wasm_path).map_err(|err| { let mut wasm_binary: Vec<u8> = read_file_contents(wasm_path).map_err(|err| {
@ -282,9 +304,10 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
let num_str = if let Some(ns) = split.next() { let num_str = if let Some(ns) = split.next() {
ns ns
} else { } else {
return Err(format!( return Err(
"Can't parse symbol map (expected each entry to be of the form: `0:func_name`)" "Can't parse symbol map (expected each entry to be of the form: `0:func_name`)"
)); .to_string(),
);
}; };
let num: u32 = num_str.parse::<u32>().map_err(|err| { let num: u32 = num_str.parse::<u32>().map_err(|err| {
format!( format!(
@ -295,9 +318,10 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
let name_str: String = if let Some(name_str) = split.next() { let name_str: String = if let Some(name_str) = split.next() {
name_str name_str
} else { } else {
return Err(format!( return Err(
"Can't parse symbol map (expected each entry to be of the form: `0:func_name`)" "Can't parse symbol map (expected each entry to be of the form: `0:func_name`)"
)); .to_string(),
);
} }
.to_owned(); .to_owned();
@ -375,7 +399,7 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
// cache.load will return the Module if it's able to deserialize it properly, and an error if: // cache.load will return the Module if it's able to deserialize it properly, and an error if:
// * The file is not found // * The file is not found
// * The file exists, but it's corrupted or can't be converted to a module // * The file exists, but it's corrupted or can't be converted to a module
let module = match cache.load(hash) { match cache.load(hash) {
Ok(module) => { Ok(module) => {
// We are able to load the module from cache // We are able to load the module from cache
module module
@ -395,8 +419,7 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
module module
} }
}; }
module
}; };
if let Some(loader) = options.loader { if let Some(loader) = options.loader {
@ -445,9 +468,6 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
.instantiate(&import_object) .instantiate(&import_object)
.map_err(|e| format!("Can't instantiate module: {:?}", e))?; .map_err(|e| format!("Can't instantiate module: {:?}", e))?;
if !mapped_dirs.is_empty() {
eprintln!("WARN: mapdir is not implemented for emscripten targets");
}
wasmer_emscripten::run_emscripten_instance( wasmer_emscripten::run_emscripten_instance(
&module, &module,
&mut instance, &mut instance,
@ -458,6 +478,7 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
}, },
options.args.iter().map(|arg| arg.as_str()).collect(), options.args.iter().map(|arg| arg.as_str()).collect(),
options.em_entrypoint.clone(), options.em_entrypoint.clone(),
mapped_dirs,
) )
.map_err(|e| format!("{:?}", e))?; .map_err(|e| format!("{:?}", e))?;
} else { } else {
@ -473,7 +494,8 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
.cloned() .cloned()
.map(|arg| arg.into_bytes()) .map(|arg| arg.into_bytes())
.collect(), .collect(),
env::vars() env_vars
.into_iter()
.map(|(k, v)| format!("{}={}", k, v).into_bytes()) .map(|(k, v)| format!("{}={}", k, v).into_bytes())
.collect(), .collect(),
options.pre_opened_directories.clone(), options.pre_opened_directories.clone(),