INNER CODE UNIT · Rust

kernel_symbols_iter

KernelSU-Next/KernelSU-Next · userspace/ksuinit/src/lib.rs:42

pub fn kernel_symbols_iter() -> Result<impl Iterator<Item = (String, u64)>> {
    let kptr = Kptr::new()?;

    let iter = BufReader::new(File::open("/proc/kallsyms")?)
        .lines()
        // https://github.com/torvalds/linux/blob/7f87a5ea75f011d2c9bc8ac0167e5e2d1adb1594/kernel/kallsyms.c#L727
        // We can stop read as soon as we read all kernel symbols
        .map_while(|line| {
            line.ok().and_then(|line| {
                let mut splits = line.split_whitespace();
                splits
                    .next()
                    .and_then(|addr| u64::from_str_radix(addr, 16).ok())
                    .and_then(|addr| {
                        splits
                            .nth(1)
                            .take_if(|_| splits.next().is_none()) // stop at module symbols
                            .map(|symbol| {

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