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Port backtrace dylib-dep test to a ui test
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//@ compile-flags: -g -Cstrip=none | ||
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#[inline(never)] | ||
pub fn callback<F>(f: F) | ||
where | ||
F: FnOnce((&'static str, u32)), | ||
{ | ||
f((file!(), line!())) | ||
} | ||
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#[inline(always)] | ||
pub fn callback_inlined<F>(f: F) | ||
where | ||
F: FnOnce((&'static str, u32)), | ||
{ | ||
f((file!(), line!())) | ||
} |
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//@ compile-flags: -g -Cstrip=none | ||
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#![crate_type = "cdylib"] | ||
#![crate_type = "rlib"] | ||
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#![allow(improper_ctypes_definitions)] | ||
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type Pos = (&'static str, u32); | ||
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macro_rules! pos { | ||
() => { | ||
(file!(), line!()) | ||
}; | ||
} | ||
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#[no_mangle] | ||
pub extern "C" fn foo(outer: Pos, inner: fn(Pos, Pos)) { | ||
inner(outer, pos!()); | ||
} |
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// Check that backtrace info is correctly generated for dynamic libraries and is usable by a | ||
// rust binary. | ||
// Part of porting some backtrace tests to rustc: <https://github.com/rust-lang/rust/issues/122899>. | ||
// Original test: | ||
// <https://github.com/rust-lang/backtrace-rs/tree/6fa4b85b9962c3e1be8c2e5cc605cd078134152b/crates/dylib-dep> | ||
// ignore-tidy-linelength | ||
//@ ignore-android FIXME #17520 | ||
//@ ignore-fuchsia Backtraces not symbolized | ||
//@ needs-unwind | ||
//@ compile-flags: -g -Copt-level=0 -Cstrip=none | ||
//@ aux-crate: dylib_dep_helper=dylib-dep-helper.rs | ||
//@ aux-crate: auxiliary=dylib-dep-helper-aux.rs | ||
//@ ignore-musl musl doesn't support dynamic libraries (at least when the original test was written). | ||
//@ run-pass | ||
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#![allow(improper_ctypes)] | ||
#![allow(improper_ctypes_definitions)] | ||
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extern crate dylib_dep_helper; | ||
extern crate auxiliary; | ||
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use std::backtrace::Backtrace; | ||
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macro_rules! pos { | ||
() => { | ||
(file!(), line!()) | ||
}; | ||
} | ||
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macro_rules! check { | ||
($($pos:expr),*) => ({ | ||
verify(&[$($pos,)* pos!()]); | ||
}) | ||
} | ||
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fn verify(filelines: &[Pos]) { | ||
let trace = Backtrace::capture(); | ||
eprintln!("-----------------------------------"); | ||
eprintln!("looking for:"); | ||
for (file, line) in filelines.iter().rev() { | ||
eprintln!("\t{file}:{line}"); | ||
} | ||
eprintln!("found:\n{trace:#?}"); | ||
let mut iter = filelines.iter().rev(); | ||
// FIXME(jieyouxu): use proper `BacktraceFrame` accessors when it becomes available. Right now, | ||
// this depends on the debug format of `Backtrace` which is of course fragile. | ||
let backtrace = format!("{:#?}", trace); | ||
while let Some((file, line)) = iter.next() { | ||
// FIXME(jieyouxu): make this test use proper accessors on `BacktraceFrames` once it has | ||
// them. | ||
assert!(backtrace.contains(file), "expected backtrace to contain {}", file); | ||
assert!(backtrace.contains(&line.to_string()), "expected backtrace to contain {}", line); | ||
} | ||
} | ||
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type Pos = (&'static str, u32); | ||
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extern "C" { | ||
#[link_name = "foo"] | ||
fn foo(p: Pos, cb: fn(Pos, Pos)); | ||
} | ||
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fn main() { | ||
std::env::set_var("RUST_BACKTRACE", "1"); | ||
std::env::set_var("WASMTIME_BACKTRACE_DETAILS", "1"); | ||
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unsafe { | ||
foo(pos!(), |a, b| { | ||
check!(a, b) | ||
}) | ||
} | ||
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outer(pos!()); | ||
} | ||
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#[inline(never)] | ||
fn outer(main_pos: Pos) { | ||
inner(main_pos, pos!()); | ||
inner_inlined(main_pos, pos!()); | ||
} | ||
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#[inline(never)] | ||
fn inner(main_pos: Pos, outer_pos: Pos) { | ||
check!(main_pos, outer_pos); | ||
check!(main_pos, outer_pos); | ||
let inner_pos = pos!(); auxiliary::callback(|aux_pos| { | ||
check!(main_pos, outer_pos, inner_pos, aux_pos); | ||
}); | ||
let inner_pos = pos!(); auxiliary::callback_inlined(|aux_pos| { | ||
check!(main_pos, outer_pos, inner_pos, aux_pos); | ||
}); | ||
} | ||
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#[inline(always)] | ||
fn inner_inlined(main_pos: Pos, outer_pos: Pos) { | ||
check!(main_pos, outer_pos); | ||
check!(main_pos, outer_pos); | ||
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#[inline(always)] | ||
fn inner_further_inlined(main_pos: Pos, outer_pos: Pos, inner_pos: Pos) { | ||
check!(main_pos, outer_pos, inner_pos); | ||
} | ||
inner_further_inlined(main_pos, outer_pos, pos!()); | ||
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let inner_pos = pos!(); auxiliary::callback(|aux_pos| { | ||
check!(main_pos, outer_pos, inner_pos, aux_pos); | ||
}); | ||
let inner_pos = pos!(); auxiliary::callback_inlined(|aux_pos| { | ||
check!(main_pos, outer_pos, inner_pos, aux_pos); | ||
}); | ||
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// this tests a distinction between two independent calls to the inlined function. | ||
// (un)fortunately, LLVM somehow merges two consecutive such calls into one node. | ||
inner_further_inlined(main_pos, outer_pos, pos!()); | ||
} |