From 0b7a148ad9e5b990c9d6278f5010959afdac90ed Mon Sep 17 00:00:00 2001
From: DrMeepster <19316085+DrMeepster@users.noreply.github.com>
Date: Wed, 1 Jun 2022 17:32:01 -0700
Subject: [PATCH] add test for backtrace with global allocator

---
 tests/pass/backtrace-global-alloc.rs     | 13 +++++++++++
 tests/pass/backtrace-global-alloc.stderr | 28 ++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 tests/pass/backtrace-global-alloc.rs
 create mode 100644 tests/pass/backtrace-global-alloc.stderr

diff --git a/tests/pass/backtrace-global-alloc.rs b/tests/pass/backtrace-global-alloc.rs
new file mode 100644
index 00000000000..8c51bf62706
--- /dev/null
+++ b/tests/pass/backtrace-global-alloc.rs
@@ -0,0 +1,13 @@
+// compile-flags: -Zmiri-disable-isolation
+
+#![feature(backtrace)]
+
+use std::alloc::System;
+use std::backtrace::Backtrace;
+
+#[global_allocator]
+static GLOBAL_ALLOCATOR: System = System;
+
+fn main() {
+    eprint!("{}", Backtrace::capture());
+}
diff --git a/tests/pass/backtrace-global-alloc.stderr b/tests/pass/backtrace-global-alloc.stderr
new file mode 100644
index 00000000000..c48061d64d0
--- /dev/null
+++ b/tests/pass/backtrace-global-alloc.stderr
@@ -0,0 +1,28 @@
+   0: main
+ at $DIR/backtrace-global-alloc.rs:LL:CC
+   1: <fn() as std::ops::FnOnce<()>>::call_once - shim(fn())
+ at RUSTLIB/core/src/ops/function.rs:LL:CC
+   2: std::sys_common::backtrace::__rust_begin_short_backtrace
+ at RUSTLIB/std/src/sys_common/backtrace.rs:LL:CC
+   3: std::rt::lang_start::{closure#0}
+ at RUSTLIB/std/src/rt.rs:LL:CC
+   4: std::ops::function::impls::call_once
+ at RUSTLIB/core/src/ops/function.rs:LL:CC
+   5: std::panicking::r#try::do_call
+ at RUSTLIB/std/src/panicking.rs:LL:CC
+   6: std::panicking::r#try
+ at RUSTLIB/std/src/panicking.rs:LL:CC
+   7: std::panic::catch_unwind
+ at RUSTLIB/std/src/panic.rs:LL:CC
+   8: std::rt::lang_start_internal::{closure#2}
+ at RUSTLIB/std/src/rt.rs:LL:CC
+   9: std::panicking::r#try::do_call
+ at RUSTLIB/std/src/panicking.rs:LL:CC
+  10: std::panicking::r#try
+ at RUSTLIB/std/src/panicking.rs:LL:CC
+  11: std::panic::catch_unwind
+ at RUSTLIB/std/src/panic.rs:LL:CC
+  12: std::rt::lang_start_internal
+ at RUSTLIB/std/src/rt.rs:LL:CC
+  13: std::rt::lang_start
+ at RUSTLIB/std/src/rt.rs:LL:CC