lookup/
lookup.rs

1use std::fs::File;
2use memmap2::Mmap;
3
4use dwat::prelude::*;
5use dwat::Dwarf;
6
7fn main() -> anyhow::Result<()> {
8    let mut args = std::env::args().skip(1);
9    let struct_name = args.next().unwrap_or_else(|| {
10        eprintln!("Usage: lookup <struct_name> <path> [verbosity]");
11        std::process::exit(1);
12    }).to_string();
13    let path = args.next().unwrap_or_else(|| {
14        eprintln!("Usage: lookup <struct_name> <path> [verbosity]");
15        std::process::exit(1);
16    });
17    let verbosity = args.next().unwrap_or_else(|| {
18        "0".to_string()
19    });
20
21    let verbosity = verbosity.parse::<u8>()?;
22
23    let file = File::open(path).unwrap();
24    let mmap = unsafe { Mmap::map(&file) }.unwrap();
25    let dwarf = Dwarf::load(&*mmap)?;
26
27    // some good test cases:
28    // compat_rusage
29    // file_system_type
30    // trace_event_raw_itimer_expire
31    // sev_config
32    // mca_config
33    // ntb_ctrl_regs
34
35    let found = dwarf.lookup_type::<dwat::Struct>(struct_name)?;
36    if let Some(found) = found {
37        println!("{}", found.to_string_verbose(&dwarf, verbosity)?);
38    }
39
40    Ok(())
41}