From 356e117815a56a9a049d4d38b8b62698a2178506 Mon Sep 17 00:00:00 2001
From: Timo Paulssen <timonator@perpetuum-immobile.de>
Date: Thu, 9 Sep 2021 00:34:14 +0200
Subject: [PATCH] prevent perf map output from segfaulting

---
 src/jit/compile.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/jit/compile.c b/src/jit/compile.c
index e749b7bacf..832b4668e8 100644
--- a/src/jit/compile.c
+++ b/src/jit/compile.c
@@ -138,8 +138,10 @@ MVMJitCode * MVM_jit_compile_graph(MVMThreadContext *tc, MVMJitGraph *jg) {
 
 #if linux
     /* Native Call compiles code that doesn't correspond
-     * to a staticframe, in which case we just skip this. */
-    if (tc->instance->jit_perf_map && jg->sg->sf) {
+     * to a staticframe, in which case we just skip this.
+     * Sometimes code ends up null here as well, in which
+     * case we also skip. */
+    if (tc->instance->jit_perf_map && jg->sg->sf && code) {
         MVMStaticFrame *sf = jg->sg->sf;
         char symbol_name[1024];
         char *file_location = MVM_staticframe_file_location(tc, sf);