blob: 40a6b120a68f6e02ec8cb22a04cdcf1b6261a316 [file] [log] [blame]
extern crate backtrace;
fn main() {
foo();
}
fn foo() { bar() }
fn bar() { baz() }
fn baz() { print() }
#[cfg(target_pointer_width = "32")] const HEX_WIDTH: usize = 10;
#[cfg(target_pointer_width = "64")] const HEX_WIDTH: usize = 20;
fn print() {
let mut cnt = 0;
backtrace::trace(|frame| {
let ip = frame.ip();
print!("frame #{:<2} - {:#02$x}", cnt, ip as usize, HEX_WIDTH);
cnt += 1;
let mut resolved = false;
backtrace::resolve(frame.ip(), |symbol| {
if !resolved {
resolved = true;
} else {
print!("{}", vec![" "; 7 + 2 + 3 + HEX_WIDTH].join(""));
}
if let Some(name) = symbol.name() {
print!(" - {}", name);
} else {
print!(" - <unknown>");
}
if let Some(file) = symbol.filename() {
if let Some(l) = symbol.lineno() {
print!("\n{:13}{:4$}@ {}:{}", "", "", file.display(), l,
HEX_WIDTH);
}
}
println!("");
});
if !resolved {
println!(" - <no info>");
}
true // keep going
});
}