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use object::{
Object, ObjectSection, ObjectSymbol, SectionIndex, SectionKind, Symbol, SymbolKind,
SymbolSection,
};
use std::collections::HashMap;
use std::{env, fs, process};
fn main() {
let arg_len = env::args().len();
if arg_len <= 1 {
eprintln!("Usage: {} <file> ...", env::args().next().unwrap());
process::exit(1);
}
for file_path in env::args().skip(1) {
if arg_len > 2 {
println!();
println!("{}:", file_path);
}
let file = match fs::File::open(&file_path) {
Ok(file) => file,
Err(err) => {
println!("Failed to open file '{}': {}", file_path, err,);
continue;
}
};
let file = match unsafe { memmap2::Mmap::map(&file) } {
Ok(mmap) => mmap,
Err(err) => {
println!("Failed to map file '{}': {}", file_path, err,);
continue;
}
};
let file = match object::File::parse(&*file) {
Ok(file) => file,
Err(err) => {
println!("Failed to parse file '{}': {}", file_path, err);
continue;
}
};
let section_kinds = file.sections().map(|s| (s.index(), s.kind())).collect();
println!("Debugging symbols:");
for symbol in file.symbols() {
print_symbol(&symbol, §ion_kinds);
}
println!();
println!("Dynamic symbols:");
for symbol in file.dynamic_symbols() {
print_symbol(&symbol, §ion_kinds);
}
}
}
fn print_symbol(symbol: &Symbol<'_, '_>, section_kinds: &HashMap<SectionIndex, SectionKind>) {
if let SymbolKind::Section | SymbolKind::File = symbol.kind() {
return;
}
let mut kind = match symbol.section() {
SymbolSection::Undefined => 'U',
SymbolSection::Absolute => 'A',
SymbolSection::Common => 'C',
SymbolSection::Section(index) => match section_kinds.get(&index) {
Some(SectionKind::Text) => 't',
Some(SectionKind::Data) | Some(SectionKind::Tls) | Some(SectionKind::TlsVariables) => {
'd'
}
Some(SectionKind::ReadOnlyData) | Some(SectionKind::ReadOnlyString) => 'r',
Some(SectionKind::UninitializedData) | Some(SectionKind::UninitializedTls) => 'b',
Some(SectionKind::Common) => 'C',
_ => '?',
},
_ => '?',
};
if symbol.is_global() {
kind = kind.to_ascii_uppercase();
}
if symbol.is_undefined() {
print!("{:16} ", "");
} else {
print!("{:016x} ", symbol.address());
}
println!(
"{:016x} {} {}",
symbol.size(),
kind,
symbol.name().unwrap_or("<unknown>"),
);
}
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