From 7b50c8785888d24d3a478fade11f03b2b4166276 Mon Sep 17 00:00:00 2001
From: Christoffer Lerno <christoffer@aegik.com>
Date: Thu, 20 Nov 2025 12:52:25 +0100
Subject: [PATCH] - Fix issue when tests encounter a segmentation fault or
 similar.

---
 lib/std/core/runtime_test.c3 | 15 +++++++++++++++
 releasenotes.md              |  1 +
 2 files changed, 16 insertions(+)

diff --git a/lib/std/core/runtime_test.c3 b/lib/std/core/runtime_test.c3
index 676f6e262..964c462b2 100644
--- a/lib/std/core/runtime_test.c3
+++ b/lib/std/core/runtime_test.c3
@@ -86,6 +86,16 @@ fn bool terminal_has_ansi_codes() @local => @pool()
 	$endif
 }
 
+fn void sig_bus_error(CInt i) @local
+{
+	test_panic("Bus error", "Unknown", "Unknown", 0);
+}
+
+fn void sig_segmentation_fault(CInt i) @local
+{
+	test_panic("Segmentation fault", "Unknown", "Unknown", 0);
+}
+
 fn void test_panic(String message, String file, String function, uint line) @local
 {
 	if (test_context.is_in_panic) return;
@@ -165,6 +175,7 @@ fn void unmute_output(bool has_error) @local
 	(void)stdout.flush();
 }
 
+
 fn bool run_tests(String[] args, TestUnit[] tests) @private
 {
 	usz max_name;
@@ -175,6 +186,10 @@ fn bool run_tests(String[] args, TestUnit[] tests) @private
 		io::printn("There are no test units to run.");
 		return true;   // no tests == technically a pass
 	}
+$if !env::NO_LIBC:
+	libc::signal(libc::SIGBUS, &sig_bus_error);
+	libc::signal(libc::SIGSEGV, &sig_segmentation_fault);
+$endif
 	foreach (&unit : tests)
 	{
 		if (max_name < unit.name.len) max_name = unit.name.len;
diff --git a/releasenotes.md b/releasenotes.md
index 636b6f25c..88f2d7e96 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -34,6 +34,7 @@
 - Fix decl attribute in the wrong place causing an assertion. #2581
 - Passing a single value to `@wasm` would ignore the renaming.
 - `*(int*)1` incorrectly yielded an assert in LLVM IR lowering #2584.
+- Fix issue when tests encounter a segmentation fault or similar.
 
 ### Stdlib changes