wasmer/lib
Syrus 676bccff3c Tryin gto make c_api_tests verbose mitigates the flaky error
Each time `make capi` is run, there is a flaky error:

```
Running target/release/deps/runtime_c_api_tests-3df0f74fcea1252d

running 1 test
test test_c_api ... FAILED

failures:

---- test_c_api stdout ----
Running command: `cmake` arg: Some(".")
output:
status: 0
stdout:
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/syrusakbary/Development/wasmer/lib/runtime-c-api/tests

stderr:

Running command: `make` arg: Some("-Wdev -Werror=dev")
output:
status: 0
stdout:
[  7%] Built target test-tables
[ 15%] Built target test-module-exports
[ 23%] Built target test-module-imports
[ 30%] Built target test-globals
[ 38%] Built target test-imports
[ 46%] Built target test-module
[ 53%] Built target test-module-serialize
[ 61%] Built target test-memory
[ 69%] Built target test-validate
[ 76%] Built target test-import-function
[ 84%] Built target test-instantiate
[ 92%] Built target test-exports
[100%] Built target test-exported-memory

stderr:

Running command: `make` arg: Some("test")
output:
status: 2
stdout:
Running tests...
Test project /Users/syrusakbary/Development/wasmer/lib/runtime-c-api/tests
      Start  1: test-exported-memory
 1/13 Test  #1: test-exported-memory .............Child aborted***Exception:   0.00 sec
      Start  2: test-exports
 2/13 Test  #2: test-exports .....................   Passed    0.01 sec
      Start  3: test-globals
 3/13 Test  #3: test-globals .....................   Passed    0.00 sec
      Start  4: test-import-function
 4/13 Test  #4: test-import-function .............   Passed    0.01 sec
      Start  5: test-imports
 5/13 Test  #5: test-imports .....................   Passed    0.01 sec
      Start  6: test-instantiate
 6/13 Test  #6: test-instantiate .................   Passed    0.01 sec
      Start  7: test-memory
 7/13 Test  #7: test-memory ......................   Passed    0.00 sec
      Start  8: test-module
 8/13 Test  #8: test-module ......................   Passed    0.01 sec
      Start  9: test-module-exports
 9/13 Test  #9: test-module-exports ..............   Passed    0.01 sec
      Start 10: test-module-imports
10/13 Test #10: test-module-imports ..............   Passed    0.01 sec
      Start 11: test-module-serialize
11/13 Test #11: test-module-serialize ............   Passed    0.01 sec
      Start 12: test-tables
12/13 Test #12: test-tables ......................   Passed    0.00 sec
      Start 13: test-validate
13/13 Test #13: test-validate ....................   Passed    0.00 sec

92% tests passed, 1 tests failed out of 13

Total Test time (real) =   0.08 sec

The following tests FAILED:
	  1 - test-exported-memory (Child aborted)

stderr:
Errors while running CTest
make[1]: *** [test] Error 8

thread 'test_c_api' panicked at 'Command failed with exit status: ExitStatus(ExitStatus(512))', lib/runtime-c-api/tests/runtime_c_api_tests.rs:43:17
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
```
2019-08-01 00:22:52 -07:00
..
clif-backend Updated dependencies 2019-07-31 23:42:54 -07:00
dev-utils Update dependencies to latest versions 2019-07-31 23:04:03 -07:00
emscripten Formatted code 2019-07-31 23:51:12 -07:00
emscripten-tests Updated dependencies 2019-07-31 23:42:54 -07:00
kernel-loader Update dependencies to latest versions 2019-07-31 23:04:03 -07:00
kernel-net Remove all uses of mem::uninitialized for Rust 1.38 2019-07-31 13:21:20 +09:00
llvm-backend Formatted code 2019-07-31 23:51:12 -07:00
middleware-common Fixed middleware linting 2019-07-31 21:24:46 -07:00
runtime Updated dependencies 2019-07-31 23:42:54 -07:00
runtime-abi Updated dependencies 2019-07-31 23:42:54 -07:00
runtime-c-api Tryin gto make c_api_tests verbose mitigates the flaky error 2019-08-01 00:22:52 -07:00
runtime-core Formatted code 2019-07-31 23:51:12 -07:00
singlepass-backend Updated dependencies 2019-07-31 23:42:54 -07:00
spectests Updated version to 0.6.0 2019-07-31 10:28:45 -07:00
wasi Updated dependencies 2019-07-31 23:42:54 -07:00
wasi-tests Updated dependencies 2019-07-31 23:42:54 -07:00
win-exception-handler Updated dependencies 2019-07-31 23:42:54 -07:00
.gitignore Remove generated spectest codes from repo. 2019-01-12 23:48:21 -05:00
README.md Renamed dynasm backend to singlepass 2019-04-11 12:44:03 -07:00

Wasmer Libraries

Wasmer is modularized into different libraries, separated into three main sections:

Runtime

The core of Wasmer is the runtime, which provides the necessary abstractions to create a good user experience when embedding.

The runtime is divided into two main libraries:

  • runtime-core: The main implementation of the runtime.
  • runtime: Easy-to-use API on top of runtime-core.

Integrations

The integration builds on the Wasmer runtime and allow us to run WebAssembly files compiled for different environments.

Wasmer intends to support different integrations:

  • WASI: run WebAssembly files with the WASI ABI.
  • Emscripten: run Emscripten-generated WebAssembly files, such as Lua or nginx.
  • Go ABI: we will work on this soon! Want to give us a hand?
  • Blazor: research period, see tracking issue

Backends

The Wasmer runtime is designed to support multiple compiler backends, allowing the user to tune the codegen properties (compile speed, performance, etc) to best fit their use case.

Currently, we support multiple backends for compiling WebAssembly to machine code:

  • singlepass-backend: Single pass backend - super fast compilation, slower runtime speed
  • clif-backend: Cranelift backend - slower compilation, normal runtime speed
  • llvm-backend: LLVM backend - slow compilation, native runtime speed