36 lines
1.0 KiB
Rust
36 lines
1.0 KiB
Rust
use regex::Regex;
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use std::{
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fs::File,
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io::{prelude::*, BufWriter, Read},
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path::PathBuf,
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process::exit,
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str,
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};
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/**
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* Extract a list of registered syscall names and save it in a file
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* for distribution with the SDK. This file is read by cargo-build-bpf
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* to verify undefined symbols in a .so module that cargo-build-bpf has built.
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*/
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fn main() {
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let path = PathBuf::from("src/syscalls.rs");
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let mut file = match File::open(&path) {
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Ok(x) => x,
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_ => exit(1),
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};
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let mut text = vec![];
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file.read_to_end(&mut text).unwrap();
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let text = str::from_utf8(&text).unwrap();
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let path = PathBuf::from("../../sdk/bpf/syscalls.txt");
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let file = match File::create(&path) {
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Ok(x) => x,
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_ => exit(1),
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};
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let mut out = BufWriter::new(file);
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let sysc_re = Regex::new(r#"register_syscall_by_name\([[:space:]]*b"([^"]+)","#).unwrap();
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for caps in sysc_re.captures_iter(text) {
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let name = caps[1].to_string();
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writeln!(out, "{}", name).unwrap();
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}
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}
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