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