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//@ ignore-windows
//@ ignore-apple
// This test should be replaced with one in tests/debuginfo once we can easily
// tell via GDB or LLDB if debuginfo contains source code. Cheap tricks in LLDB
// like setting an invalid source map path don't appear to work, maybe this'll
// become easier once GDB supports DWARFv6?
use std::collections::HashMap;
use std::path::PathBuf;
use std::rc::Rc;
use gimli::{EndianRcSlice, Reader, RunTimeEndian};
use object::{Object, ObjectSection};
use run_make_support::{gimli, object, rfs, rustc};
fn main() {
let output = PathBuf::from("embed-source-main");
rustc()
.input("main.rs")
.output(&output)
.arg("-g")
.arg("-Zembed-source=yes")
.arg("-Zdwarf-version=5")
.run();
let output = rfs::read(output);
let obj = object::File::parse(output.as_slice()).unwrap();
let endian = if obj.is_little_endian() { RunTimeEndian::Little } else { RunTimeEndian::Big };
let dwarf = gimli::Dwarf::load(|section| -> Result<_, ()> {
let data = obj.section_by_name(section.name()).map(|s| s.uncompressed_data().unwrap());
Ok(EndianRcSlice::new(Rc::from(data.unwrap_or_default().as_ref()), endian))
})
.unwrap();
let mut sources = HashMap::new();
let mut iter = dwarf.units();
while let Some(header) = iter.next().unwrap() {
let unit = dwarf.unit(header).unwrap();
let unit = unit.unit_ref(&dwarf);
if let Some(program) = &unit.line_program {
let header = program.header();
for file in header.file_names() {
if let Some(source) = file.source() {
let path = unit
.attr_string(file.path_name())
.unwrap()
.to_string_lossy()
.unwrap()
.to_string();
let source =
unit.attr_string(source).unwrap().to_string_lossy().unwrap().to_string();
if !source.is_empty() {
sources.insert(path, source);
}
}
}
}
}
dbg!(&sources);
assert_eq!(sources.len(), 1);
assert_eq!(sources.get("main.rs").unwrap(), "// hello\nfn main() {}\n");
}
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