From 295d648f766d46c5da059dac26b0373f986b6a28 Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Wed, 22 Nov 2023 15:23:04 +0000
Subject: [PATCH] [wasm] Use xmalloc/xfree for jmpbuf allocation to trigger GC
 properly

`rb_vm_tag_jmpbuf_{init,deinit}` are safe to raise exception since the
given tag is not yet pushed to `ec->tag` or already popped from it at
the time, so `ec->tag` is always valid and it's safe to raise exception
when xmalloc fails.
---
 vm_core.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vm_core.h b/vm_core.h
index f7f0f7f2ca..fcac71b2e5 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -913,13 +913,13 @@ typedef rb_jmpbuf_t *rb_vm_tag_jmpbuf_t;
 static inline void
 rb_vm_tag_jmpbuf_init(rb_vm_tag_jmpbuf_t *jmpbuf)
 {
-    *jmpbuf = malloc(sizeof(rb_jmpbuf_t));
+    *jmpbuf = ruby_xmalloc(sizeof(rb_jmpbuf_t));
 }
 
 static inline void
 rb_vm_tag_jmpbuf_deinit(const rb_vm_tag_jmpbuf_t *jmpbuf)
 {
-    free(*jmpbuf);
+    ruby_xfree(*jmpbuf);
 }
 #else
 typedef rb_jmpbuf_t rb_vm_tag_jmpbuf_t;