1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
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
});
}
|
