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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/backtrace/tests/smoke.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/backtrace/tests/smoke.rs')
-rw-r--r--vendor/backtrace/tests/smoke.rs323
1 files changed, 0 insertions, 323 deletions
diff --git a/vendor/backtrace/tests/smoke.rs b/vendor/backtrace/tests/smoke.rs
deleted file mode 100644
index 683a6f0..0000000
--- a/vendor/backtrace/tests/smoke.rs
+++ /dev/null
@@ -1,323 +0,0 @@
-use backtrace::Frame;
-use std::thread;
-
-#[test]
-// FIXME: shouldn't ignore this test on i686-msvc, unsure why it's failing
-#[cfg_attr(all(target_arch = "x86", target_env = "msvc"), ignore)]
-#[rustfmt::skip] // we care about line numbers here
-fn smoke_test_frames() {
- frame_1(line!());
- #[inline(never)] fn frame_1(start_line: u32) { frame_2(start_line) }
- #[inline(never)] fn frame_2(start_line: u32) { frame_3(start_line) }
- #[inline(never)] fn frame_3(start_line: u32) { frame_4(start_line) }
- #[inline(never)] fn frame_4(start_line: u32) {
- let mut v = Vec::new();
- backtrace::trace(|cx| {
- v.push(cx.clone());
- true
- });
-
- // Various platforms have various bits of weirdness about their
- // backtraces. To find a good starting spot let's search through the
- // frames
- let target = frame_4 as usize;
- let offset = v
- .iter()
- .map(|frame| frame.symbol_address() as usize)
- .enumerate()
- .filter_map(|(i, sym)| {
- if sym >= target {
- Some((sym, i))
- } else {
- None
- }
- })
- .min()
- .unwrap()
- .1;
- let mut frames = v[offset..].iter();
-
- assert_frame(
- frames.next().unwrap(),
- frame_4 as usize,
- "frame_4",
- "tests/smoke.rs",
- start_line + 6,
- 9,
- );
- assert_frame(
- frames.next().unwrap(),
- frame_3 as usize,
- "frame_3",
- "tests/smoke.rs",
- start_line + 3,
- 52,
- );
- assert_frame(
- frames.next().unwrap(),
- frame_2 as usize,
- "frame_2",
- "tests/smoke.rs",
- start_line + 2,
- 52,
- );
- assert_frame(
- frames.next().unwrap(),
- frame_1 as usize,
- "frame_1",
- "tests/smoke.rs",
- start_line + 1,
- 52,
- );
- assert_frame(
- frames.next().unwrap(),
- smoke_test_frames as usize,
- "smoke_test_frames",
- "",
- 0,
- 0,
- );
- }
-
- fn assert_frame(
- frame: &Frame,
- actual_fn_pointer: usize,
- expected_name: &str,
- expected_file: &str,
- expected_line: u32,
- expected_col: u32,
- ) {
- backtrace::resolve_frame(frame, |sym| {
- print!("symbol ip:{:?} address:{:?} ", frame.ip(), frame.symbol_address());
- if let Some(name) = sym.name() {
- print!("name:{} ", name);
- }
- if let Some(file) = sym.filename() {
- print!("file:{} ", file.display());
- }
- if let Some(lineno) = sym.lineno() {
- print!("lineno:{} ", lineno);
- }
- if let Some(colno) = sym.colno() {
- print!("colno:{} ", colno);
- }
- println!();
- });
-
- let ip = frame.ip() as usize;
- let sym = frame.symbol_address() as usize;
- assert!(ip >= sym);
- assert!(
- sym >= actual_fn_pointer,
- "{:?} < {:?} ({} {}:{}:{})",
- sym as *const usize,
- actual_fn_pointer as *const usize,
- expected_name,
- expected_file,
- expected_line,
- expected_col,
- );
-
- // windows dbghelp is *quite* liberal (and wrong) in many of its reports
- // right now...
- //
- // This assertion can also fail for release builds, so skip it there
- if cfg!(debug_assertions) {
- assert!(sym - actual_fn_pointer < 1024);
- }
-
- let mut resolved = 0;
-
- let mut name = None;
- let mut addr = None;
- let mut col = None;
- let mut line = None;
- let mut file = None;
- backtrace::resolve_frame(frame, |sym| {
- resolved += 1;
- name = sym.name().map(|v| v.to_string());
- addr = sym.addr();
- col = sym.colno();
- line = sym.lineno();
- file = sym.filename().map(|v| v.to_path_buf());
- });
- assert!(resolved > 0);
-
- let name = name.expect("didn't find a name");
-
- // in release mode names get weird as functions can get merged
- // together with `mergefunc`, so only assert this in debug mode
- if cfg!(debug_assertions) {
- assert!(
- name.contains(expected_name),
- "didn't find `{}` in `{}`",
- expected_name,
- name
- );
- }
-
- addr.expect("didn't find a symbol");
-
- if cfg!(debug_assertions) {
- let line = line.expect("didn't find a line number");
- let file = file.expect("didn't find a line number");
- if !expected_file.is_empty() {
- assert!(
- file.ends_with(expected_file),
- "{:?} didn't end with {:?}",
- file,
- expected_file
- );
- }
- if expected_line != 0 {
- assert!(
- line == expected_line,
- "bad line number on frame for `{}`: {} != {}",
- expected_name,
- line,
- expected_line
- );
- }
-
- // dbghelp on MSVC doesn't support column numbers
- if !cfg!(target_env = "msvc") {
- let col = col.expect("didn't find a column number");
- if expected_col != 0 {
- assert!(
- col == expected_col,
- "bad column number on frame for `{}`: {} != {}",
- expected_name,
- col,
- expected_col
- );
- }
- }
- }
- }
-}
-
-#[test]
-fn many_threads() {
- let threads = (0..16)
- .map(|_| {
- thread::spawn(|| {
- for _ in 0..16 {
- backtrace::trace(|frame| {
- backtrace::resolve(frame.ip(), |symbol| {
- let _s = symbol.name().map(|s| s.to_string());
- });
- true
- });
- }
- })
- })
- .collect::<Vec<_>>();
-
- for t in threads {
- t.join().unwrap()
- }
-}
-
-#[test]
-#[cfg(feature = "rustc-serialize")]
-fn is_rustc_serialize() {
- extern crate rustc_serialize;
-
- fn is_encode<T: rustc_serialize::Encodable>() {}
- fn is_decode<T: rustc_serialize::Decodable>() {}
-
- is_encode::<backtrace::Backtrace>();
- is_decode::<backtrace::Backtrace>();
-}
-
-#[test]
-#[cfg(feature = "serde")]
-fn is_serde() {
- extern crate serde;
-
- fn is_serialize<T: serde::ser::Serialize>() {}
- fn is_deserialize<T: serde::de::DeserializeOwned>() {}
-
- is_serialize::<backtrace::Backtrace>();
- is_deserialize::<backtrace::Backtrace>();
-}
-
-#[test]
-fn sp_smoke_test() {
- let mut refs = vec![];
- recursive_stack_references(&mut refs);
- return;
-
- #[inline(never)]
- fn recursive_stack_references(refs: &mut Vec<usize>) {
- assert!(refs.len() < 5);
-
- let x = refs.len();
- refs.push(&x as *const _ as usize);
-
- if refs.len() < 5 {
- recursive_stack_references(refs);
- eprintln!("exiting: {}", x);
- return;
- }
-
- backtrace::trace(make_trace_closure(refs));
- eprintln!("exiting: {}", x);
- }
-
- // NB: the following `make_*` functions are pulled out of line, rather than
- // defining their results as inline closures at their call sites, so that
- // the resulting closures don't have "recursive_stack_references" in their
- // mangled names.
-
- fn make_trace_closure<'a>(
- refs: &'a mut Vec<usize>,
- ) -> impl FnMut(&backtrace::Frame) -> bool + 'a {
- let mut child_sp = None;
- let mut child_ref = None;
- move |frame| {
- eprintln!("\n=== frame ===================================");
-
- let mut is_recursive_stack_references = false;
- backtrace::resolve(frame.ip(), |sym| {
- is_recursive_stack_references |=
- sym.name()
- .and_then(|name| name.as_str())
- .map_or(false, |name| {
- eprintln!("name = {}", name);
- name.contains("recursive_stack_references")
- })
- });
-
- let sp = frame.sp() as usize;
- eprintln!("sp = {:p}", sp as *const u8);
- if sp == 0 {
- // If the SP is null, then we don't have an implementation for
- // getting the SP on this target. Just keep walking the stack,
- // but don't make our assertions about the on-stack pointers and
- // SP values.
- return true;
- }
-
- // The stack grows down.
- if let Some(child_sp) = child_sp {
- assert!(child_sp <= sp);
- }
-
- if is_recursive_stack_references {
- let r = refs.pop().unwrap();
- eprintln!("ref = {:p}", r as *const u8);
- if sp != 0 {
- assert!(r > sp);
- if let Some(child_ref) = child_ref {
- assert!(sp >= child_ref);
- }
- }
- child_ref = Some(r);
- }
-
- child_sp = Some(sp);
- true
- }
- }
-}