diff options
Diffstat (limited to 'vendor/addr2line/tests/correctness.rs')
-rw-r--r-- | vendor/addr2line/tests/correctness.rs | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/addr2line/tests/correctness.rs b/vendor/addr2line/tests/correctness.rs new file mode 100644 index 000000000..3f7b43373 --- /dev/null +++ b/vendor/addr2line/tests/correctness.rs @@ -0,0 +1,91 @@ +extern crate addr2line; +extern crate fallible_iterator; +extern crate findshlibs; +extern crate gimli; +extern crate memmap; +extern crate object; + +use addr2line::Context; +use fallible_iterator::FallibleIterator; +use findshlibs::{IterationControl, SharedLibrary, TargetSharedLibrary}; +use object::Object; +use std::fs::File; + +fn find_debuginfo() -> memmap::Mmap { + let path = std::env::current_exe().unwrap(); + let file = File::open(&path).unwrap(); + let map = unsafe { memmap::Mmap::map(&file).unwrap() }; + let file = &object::File::parse(&*map).unwrap(); + if let Ok(uuid) = file.mach_uuid() { + for candidate in path.parent().unwrap().read_dir().unwrap() { + let path = candidate.unwrap().path(); + if !path.to_str().unwrap().ends_with(".dSYM") { + continue; + } + for candidate in path.join("Contents/Resources/DWARF").read_dir().unwrap() { + let path = candidate.unwrap().path(); + let file = File::open(&path).unwrap(); + let map = unsafe { memmap::Mmap::map(&file).unwrap() }; + let file = &object::File::parse(&*map).unwrap(); + if file.mach_uuid().unwrap() == uuid { + return map; + } + } + } + } + + return map; +} + +#[test] +fn correctness() { + let map = find_debuginfo(); + let file = &object::File::parse(&*map).unwrap(); + let ctx = Context::new(file).unwrap(); + + let mut bias = None; + TargetSharedLibrary::each(|lib| { + bias = Some(lib.virtual_memory_bias().0 as u64); + IterationControl::Break + }); + + let test = |sym: u64, expected_prefix: &str| { + let ip = sym.wrapping_sub(bias.unwrap()); + + let frames = ctx.find_frames(ip).unwrap(); + let frame = frames.last().unwrap().unwrap(); + let name = frame.function.as_ref().unwrap().demangle().unwrap(); + // Old rust versions generate DWARF with wrong linkage name, + // so only check the start. + if !name.starts_with(expected_prefix) { + panic!("incorrect name '{}', expected {:?}", name, expected_prefix); + } + }; + + test(test_function as u64, "correctness::test_function"); + test( + small::test_function as u64, + "correctness::small::test_function", + ); + test(auxiliary::foo as u64, "auxiliary::foo"); +} + +mod small { + pub fn test_function() { + println!("y"); + } +} + +fn test_function() { + println!("x"); +} + +#[test] +fn zero_function() { + let map = find_debuginfo(); + let file = &object::File::parse(&*map).unwrap(); + let ctx = Context::new(file).unwrap(); + for probe in 0..10 { + assert!(ctx.find_frames(probe).unwrap().count().unwrap() < 10); + } +} |