occlum/demos/hello_bazel/README.md
LI Qing 1304f5388d Improve Occlum GCC toolchain with new wrappers for binaries
This commit makes the toolchain easier to use in two folds:
1. When compiling C/C++ source files, no need to add "-fPIC -pie" flags manually;
2. When running executables generated by the Occlum toolchain on Linux, no
need to set the `LD_LIBRARY_PATH` manually.
2019-11-29 11:20:00 +00:00

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Markdown

# A Sample C++ Project with Bazel
This project demonstrates how to use Bazel to build C++ projects for Occlum. To install Bazel on Ubuntu, follow the instructions [here](https://docs.bazel.build/versions/master/install-ubuntu.html).
1. Download a Bazel sample project in C++ and build it with Occlum toolchain
```
./build_bazel_sample.sh
```
When completed, the resulting `hello-world` can be found in `examples/cpp-tutorial/stage3/bazel-bin/main` directory.
2. (Optional) Run `hello-world` on Linux
```
./examples/cpp-tutorial/stage3/bazel-bin/main/hello-world
```
3. Run `hello-world` on Occlum
```
mkdir occlum_workspace && cd occlum_workspace
occlum init
cp ../examples/cpp-tutorial/stage3/bazel-bin/main/hello-world image/bin
occlum build
occlum run /bin/hello-world
```