From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Mon, 8 Jan 2024 01:21:28 +0400
Subject: Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
---
vendor/addr2line/tests/correctness.rs | 126 +++++++++++++++++++++++++
vendor/addr2line/tests/output_equivalence.rs | 135 +++++++++++++++++++++++++++
vendor/addr2line/tests/parse.rs | 114 ++++++++++++++++++++++
3 files changed, 375 insertions(+)
create mode 100644 vendor/addr2line/tests/correctness.rs
create mode 100644 vendor/addr2line/tests/output_equivalence.rs
create mode 100644 vendor/addr2line/tests/parse.rs
(limited to 'vendor/addr2line/tests')
diff --git a/vendor/addr2line/tests/correctness.rs b/vendor/addr2line/tests/correctness.rs
new file mode 100644
index 0000000..73ee462
--- /dev/null
+++ b/vendor/addr2line/tests/correctness.rs
@@ -0,0 +1,126 @@
+use addr2line::Context;
+use fallible_iterator::FallibleIterator;
+use findshlibs::{IterationControl, SharedLibrary, TargetSharedLibrary};
+use object::Object;
+use std::borrow::Cow;
+use std::fs::File;
+use std::sync::Arc;
+
+fn find_debuginfo() -> memmap2::Mmap {
+ let path = std::env::current_exe().unwrap();
+ let file = File::open(&path).unwrap();
+ let map = unsafe { memmap2::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 { memmap2::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 module_base = file.relative_address_base();
+
+ let endian = if file.is_little_endian() {
+ gimli::RunTimeEndian::Little
+ } else {
+ gimli::RunTimeEndian::Big
+ };
+
+ fn load_section<'data: 'file, 'file, O, Endian>(
+ id: gimli::SectionId,
+ file: &'file O,
+ endian: Endian,
+ ) -> Result<gimli::EndianArcSlice<Endian>, gimli::Error>
+ where
+ O: object::Object<'data, 'file>,
+ Endian: gimli::Endianity,
+ {
+ use object::ObjectSection;
+
+ let data = file
+ .section_by_name(id.name())
+ .and_then(|section| section.uncompressed_data().ok())
+ .unwrap_or(Cow::Borrowed(&[]));
+ Ok(gimli::EndianArcSlice::new(Arc::from(&*data), endian))
+ }
+
+ let dwarf = gimli::Dwarf::load(|id| load_section(id, file, endian)).unwrap();
+ let ctx = Context::from_dwarf(dwarf).unwrap();
+ let mut split_dwarf_loader = addr2line::builtin_split_dwarf_loader::SplitDwarfLoader::new(
+ |data, endian| gimli::EndianArcSlice::new(Arc::from(&*data), endian),
+ None,
+ );
+
+ let mut bias = None;
+ TargetSharedLibrary::each(|lib| {
+ bias = Some((lib.virtual_memory_bias().0 as u64).wrapping_sub(module_base));
+ IterationControl::Break
+ });
+
+ #[allow(unused_mut)]
+ let mut test = |sym: u64, expected_prefix: &str| {
+ let ip = sym.wrapping_sub(bias.unwrap());
+
+ let frames = ctx.find_frames(ip);
+ let frames = split_dwarf_loader.run(frames).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)
+ .skip_all_loads()
+ .unwrap()
+ .count()
+ .unwrap()
+ < 10
+ );
+ }
+}
diff --git a/vendor/addr2line/tests/output_equivalence.rs b/vendor/addr2line/tests/output_equivalence.rs
new file mode 100644
index 0000000..ef026e3
--- /dev/null
+++ b/vendor/addr2line/tests/output_equivalence.rs
@@ -0,0 +1,135 @@
+use std::env;
+use std::ffi::OsStr;
+use std::path::Path;
+use std::process::Command;
+
+use backtrace::Backtrace;
+use findshlibs::{IterationControl, SharedLibrary, TargetSharedLibrary};
+use libtest_mimic::{Arguments, Failed, Trial};
+
+#[inline(never)]
+fn make_trace() -> Vec<String> {
+ fn foo() -> Backtrace {
+ bar()
+ }
+ #[inline(never)]
+ fn bar() -> Backtrace {
+ baz()
+ }
+ #[inline(always)]
+ fn baz() -> Backtrace {
+ Backtrace::new_unresolved()
+ }
+
+ let mut base_addr = None;
+ TargetSharedLibrary::each(|lib| {
+ base_addr = Some(lib.virtual_memory_bias().0 as isize);
+ IterationControl::Break
+ });
+ let addrfix = -base_addr.unwrap();
+
+ let trace = foo();
+ trace
+ .frames()
+ .iter()
+ .take(5)
+ .map(|x| format!("{:p}", (x.ip() as *const u8).wrapping_offset(addrfix)))
+ .collect()
+}
+
+fn run_cmd<P: AsRef<OsStr>>(exe: P, me: &Path, flags: Option<&str>, trace: &str) -> String {
+ let mut cmd = Command::new(exe);
+ cmd.env("LC_ALL", "C"); // GNU addr2line is localized, we aren't
+ cmd.env("RUST_BACKTRACE", "1"); // if a child crashes, we want to know why
+
+ if let Some(flags) = flags {
+ cmd.arg(flags);
+ }
+ cmd.arg("--exe").arg(me).arg(trace);
+
+ let output = cmd.output().unwrap();
+
+ assert!(output.status.success());
+ String::from_utf8(output.stdout).unwrap()
+}
+
+fn run_test(flags: Option<&str>) -> Result<(), Failed> {
+ let me = env::current_exe().unwrap();
+ let mut exe = me.clone();
+ assert!(exe.pop());
+ if exe.file_name().unwrap().to_str().unwrap() == "deps" {
+ assert!(exe.pop());
+ }
+ exe.push("examples");
+ exe.push("addr2line");
+
+ assert!(exe.is_file());
+
+ let trace = make_trace();
+
+ // HACK: GNU addr2line has a bug where looking up multiple addresses can cause the second
+ // lookup to fail. Workaround by doing one address at a time.
+ for addr in &trace {
+ let theirs = run_cmd("addr2line", &me, flags, addr);
+ let ours = run_cmd(&exe, &me, flags, addr);
+
+ // HACK: GNU addr2line does not tidy up paths properly, causing double slashes to be printed.
+ // We consider our behavior to be correct, so we fix their output to match ours.
+ let theirs = theirs.replace("//", "/");
+
+ assert!(
+ theirs == ours,
+ "Output not equivalent:
+
+$ addr2line {0} --exe {1} {2}
+{4}
+$ {3} {0} --exe {1} {2}
+{5}
+
+
+",
+ flags.unwrap_or(""),
+ me.display(),
+ trace.join(" "),
+ exe.display(),
+ theirs,
+ ours
+ );
+ }
+ Ok(())
+}
+
+static FLAGS: &str = "aipsf";
+
+fn make_tests() -> Vec<Trial> {
+ (0..(1 << FLAGS.len()))
+ .map(|bits| {
+ if bits == 0 {
+ None
+ } else {
+ let mut param = String::new();
+ param.push('-');
+ for (i, flag) in FLAGS.chars().enumerate() {
+ if (bits & (1 << i)) != 0 {
+ param.push(flag);
+ }
+ }
+ Some(param)
+ }
+ })
+ .map(|param| {
+ Trial::test(
+ format!("addr2line {}", param.as_ref().map_or("", String::as_str)),
+ move || run_test(param.as_ref().map(String::as_str)),
+ )
+ })
+ .collect()
+}
+
+fn main() {
+ if !cfg!(target_os = "linux") {
+ return;
+ }
+ let args = Arguments::from_args();
+ libtest_mimic::run(&args, make_tests()).exit();
+}
diff --git a/vendor/addr2line/tests/parse.rs b/vendor/addr2line/tests/parse.rs
new file mode 100644
index 0000000..4dafe38
--- /dev/null
+++ b/vendor/addr2line/tests/parse.rs
@@ -0,0 +1,114 @@
+use std::borrow::Cow;
+use std::env;
+use std::fs::File;
+use std::path::{self, PathBuf};
+
+use object::Object;
+
+fn release_fixture_path() -> PathBuf {
+ if let Ok(p) = env::var("ADDR2LINE_FIXTURE_PATH") {
+ return p.into();
+ }
+
+ let mut path = PathBuf::new();
+ if let Ok(dir) = env::var("CARGO_MANIFEST_DIR") {
+ path.push(dir);
+ }
+ path.push("fixtures");
+ path.push("addr2line-release");
+ path
+}
+
+fn with_file<F: FnOnce(&object::File<'_>)>(target: &path::Path, f: F) {
+ let file = File::open(target).unwrap();
+ let map = unsafe { memmap2::Mmap::map(&file).unwrap() };
+ let file = object::File::parse(&*map).unwrap();
+ f(&file)
+}
+
+fn dwarf_load<'a>(object: &object::File<'a>) -> gimli::Dwarf<Cow<'a, [u8]>> {
+ let load_section = |id: gimli::SectionId| -> Result<Cow<'a, [u8]>, gimli::Error> {
+ use object::ObjectSection;
+
+ let data = object
+ .section_by_name(id.name())
+ .and_then(|section| section.data().ok())
+ .unwrap_or(&[][..]);
+ Ok(Cow::Borrowed(data))
+ };
+ gimli::Dwarf::load(&load_section).unwrap()
+}
+
+fn dwarf_borrow<'a>(
+ dwarf: &'a gimli::Dwarf<Cow<'_, [u8]>>,
+) -> gimli::Dwarf<gimli::EndianSlice<'a, gimli::LittleEndian>> {
+ let borrow_section: &dyn for<'b> Fn(
+ &'b Cow<'_, [u8]>,
+ ) -> gimli::EndianSlice<'b, gimli::LittleEndian> =
+ &|section| gimli::EndianSlice::new(section, gimli::LittleEndian);
+ dwarf.borrow(&borrow_section)
+}
+
+#[test]
+fn parse_base_rc() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ addr2line::ObjectContext::new(file).unwrap();
+ });
+}
+
+#[test]
+fn parse_base_slice() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ let dwarf = dwarf_load(file);
+ let dwarf = dwarf_borrow(&dwarf);
+ addr2line::Context::from_dwarf(dwarf).unwrap();
+ });
+}
+
+#[test]
+fn parse_lines_rc() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ let context = addr2line::ObjectContext::new(file).unwrap();
+ context.parse_lines().unwrap();
+ });
+}
+
+#[test]
+fn parse_lines_slice() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ let dwarf = dwarf_load(file);
+ let dwarf = dwarf_borrow(&dwarf);
+ let context = addr2line::Context::from_dwarf(dwarf).unwrap();
+ context.parse_lines().unwrap();
+ });
+}
+
+#[test]
+fn parse_functions_rc() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ let context = addr2line::ObjectContext::new(file).unwrap();
+ context.parse_functions().unwrap();
+ });
+}
+
+#[test]
+fn parse_functions_slice() {
+ let target = release_fixture_path();
+
+ with_file(&target, |file| {
+ let dwarf = dwarf_load(file);
+ let dwarf = dwarf_borrow(&dwarf);
+ let context = addr2line::Context::from_dwarf(dwarf).unwrap();
+ context.parse_functions().unwrap();
+ });
+}
--
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