1 use std::env;
2 use std::process::Command;
3 use wasmtime::{Result, bail, error::Context as _};
4 
5 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
6 pub enum DwarfDumpSection {
7     DebugInfo,
8 }
9 
10 pub fn get_dwarfdump(obj: &str, section: DwarfDumpSection) -> Result<String> {
11     let dwarfdump = env::var("DWARFDUMP").unwrap_or("llvm-dwarfdump".to_string());
12     let section_flag = match section {
13         DwarfDumpSection::DebugInfo => "-debug-info",
14     };
15     let output = Command::new(&dwarfdump)
16         .args(&[section_flag, obj])
17         .output()
18         .context(format!("failed to spawn `{dwarfdump}`"))?;
19     if !output.status.success() {
20         bail!(
21             "failed to execute {}: {}",
22             dwarfdump,
23             String::from_utf8_lossy(&output.stderr),
24         );
25     }
26     Ok(String::from_utf8_lossy(&output.stdout).to_string())
27 }
28