christoph/wamr
1
Fork 0
Code Releases Activity

Add a basic sample to show how native runtime invokes wasm apps in WAMR and how wasm apps invoke native functions. (#207)

Browse Source 
* Add printingAdd print time for wamrc, fix posix mmap bug time for wamrc, fixed a posix mmap bug.

Change-Id: Ib6517b8a69cf022a1a6a74efa1f98155aec143bc

* Add a basic sample to show how native runtime invokes wasm app in WAMR, and how wasm app invokes native functions.

Change-Id: I700ae413ad5e9ea04540d5187952305e1ee92d73
This commit is contained in:
Shi Lei
2020-03-20 16:39:13 +08:00
committed by GitHub
parent b6cae54b54
commit 67495919b0
9 changed files with 460 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
samples/basic/README.md Normal file
View File

@ -0,0 +1,51 @@
The "basic" sample project
==============
This sample demonstrates a few basic usages of embedding WAMR:
- initialize runtime
- load wasm app and instantiate the module
- call wasm function and pass arguments
- export native functions to the WASM apps
- wasm function calls native function and pass arguments
- deinitialize runtime
Build this sample
==============
Execute the ```build.sh``` script then all binaries including wasm application files would be generated in 'out' directory.
```
$ ./build.sh
```
Run the sample
==========================
Enter the out directory.
```
$ cd ./out/
$
$ ./basic wasm-apps/testapp.wasm
calling into WASM function: generate_float
Native finished calling wasm function generate_float(), returned a float value: 102009.921875f
calling into WASM function: float_to_string
calling into native function: intToStr
calling into native function: get_pow
calling into native function: intToStr
Native finished calling wasm function: float_to_string, returned a formatted string: 102009.921
```
Or execute the ```run.sh``` script in ```samples/basic``` folder.
```
$ ./run.sh
calling into WASM function: generate_float
Native finished calling wasm function generate_float(), returned a float value: 102009.921875f
calling into WASM function: float_to_string
calling into native function: intToStr
calling into native function: get_pow
calling into native function: intToStr
Native finished calling wasm function: float_to_string, returned a formatted string: 102009.921
```