gdb_command/
siginfo.rs

1//! The `Siginfo` is the struct for Linux signals.
2use regex::Regex;
3
4use crate::error;
5
6/// Definition from [siginfo.h](https://github.com/torvalds/linux/blob/master/include/uapi/asm-generic/siginfo.h) (not all fields are defined).
7#[derive(Copy, Clone, Default)]
8pub struct Siginfo {
9    /// Signal number.
10    pub si_signo: u32,
11    pub si_errno: u32,
12    pub si_code: u32,
13    /// Address due to access to which an exception was occurred.
14    pub si_addr: u64,
15}
16
17impl Siginfo {
18    /// Construct `Siginfo` from string (integers are hex).
19    ///
20    /// # Arguments
21    ///
22    /// * 'info' - gdb output string with siginfo
23    pub fn from_gdb<T: AsRef<str>>(info: T) -> error::Result<Siginfo> {
24        let re =
25            Regex::new(r"si_signo.*?0x([0-9a-f]+)(?:.|\n)*si_errno.*?0x([0-9a-f]+)(?:.|\n)*si_code.*?0x([0-9a-f]+)(?:.|\n)*si_addr.*?0x([0-9a-f]+)").unwrap();
26        if let Some(caps) = re.captures(info.as_ref()) {
27            Ok(Siginfo {
28                si_signo: u32::from_str_radix(caps.get(1).unwrap().as_str(), 16)?,
29                si_errno: u32::from_str_radix(caps.get(2).unwrap().as_str(), 16)?,
30                si_code: u32::from_str_radix(caps.get(3).unwrap().as_str(), 16)?,
31                si_addr: u64::from_str_radix(caps.get(4).unwrap().as_str(), 16)?,
32            })
33        } else {
34            Err(error::Error::SiginfoParse(format!(
35                "Siginfo string: {} doesn't match regex template",
36                info.as_ref()
37            )))
38        }
39    }
40}
gdb_command/siginfo.rs

gdb_command/
siginfo.rs
