f7767eb352
Rather than sometimes using `file-per-thread-logger`. Also remove the debug CLI flags, so that we can always just define `RUST_LOG=...` to get logging and don't need to also do other things.
44 lines
1.0 KiB
Rust
44 lines
1.0 KiB
Rust
//! The `print-cfg` sub-command.
|
|
//!
|
|
//! Read a series of Cranelift IR files and print their control flow graphs
|
|
//! in graphviz format.
|
|
|
|
use crate::utils::read_to_string;
|
|
use anyhow::Result;
|
|
use clap::Parser;
|
|
use cranelift_codegen::cfg_printer::CFGPrinter;
|
|
use cranelift_reader::parse_functions;
|
|
use std::path::{Path, PathBuf};
|
|
|
|
/// Prints out cfg in GraphViz Dot format
|
|
#[derive(Parser)]
|
|
pub struct Options {
|
|
/// Specify an input file to be used. Use '-' for stdin.
|
|
#[clap(required = true)]
|
|
files: Vec<PathBuf>,
|
|
}
|
|
|
|
pub fn run(options: &Options) -> Result<()> {
|
|
for (i, f) in options.files.iter().enumerate() {
|
|
if i != 0 {
|
|
println!();
|
|
}
|
|
print_cfg(f)?
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn print_cfg(path: &Path) -> Result<()> {
|
|
let buffer = read_to_string(path)?;
|
|
let items = parse_functions(&buffer)?;
|
|
|
|
for (idx, func) in items.into_iter().enumerate() {
|
|
if idx != 0 {
|
|
println!();
|
|
}
|
|
print!("{}", CFGPrinter::new(&func));
|
|
}
|
|
|
|
Ok(())
|
|
}
|