1. stable rust toolchains: rustup toolchain install stable
2. nightly rust toolchains: rustup toolchain install nightly --component rust-src
3. (if cross-compiling) rustup target: rustup target add ${ARCH}-unknown-linux-musl
4. (if cross-compiling) LLVM: (e.g.) brew install llvm (on macOS)
5. (if cross-compiling) C toolchain: (e.g.) brew install filosottile/musl-cross/musl-cross (on macOS)
6. bpf-linker: cargo install bpf-linker (--no-default-features on macOS)

$ AYA_BUILD_EBPF=true cargo build --release

or

$ make

Cross compilation should work on both Intel and Apple Silicon Macs.

CC=${ARCH}-linux-musl-gcc cargo build --package c-fdleak --release \ --target=${ARCH}-unknown-linux-musl \ --config=target.${ARCH}-unknown-linux-musl.linker=\"${ARCH}-linux-musl-gcc\"

The cross-compiled program target/${ARCH}-unknown-linux-musl/release/c-fdleak can be copied to a Linux server or VM and run there.

Usage: c-fdleak [OPTIONS] --pid <PID> Options: -p, --pid <PID> pid of the process -t, --timeout <TIMEOUT> timeout in seconds [default: 30] -o, --output <OUTPUT> output file [default: /tmp/fdleak.out] -v, --verbose verbose mode -h, --help Print help -V, --version Print version

# ./target/release/c-fdleak --pid 5382

Generating flame graphs:

# ./FlameGraph/flamegraph.pl /tmp/fdleak.out > /tmp/1.svg