From 5dffc010f0746a5d9e0ee95ee9504fbbb1b6cee1 Mon Sep 17 00:00:00 2001
From: Jeremi Kurdek <59935235+jkurdek@users.noreply.github.com>
Date: Fri, 13 Sep 2024 16:12:51 +0200
Subject: [PATCH] Fix lowering support for inline arrays (#107744)

---
 src/mono/mono/metadata/marshal.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mono/mono/metadata/marshal.c b/src/mono/mono/metadata/marshal.c
index d0e0b2327907c..0ad51eae802a9 100644
--- a/src/mono/mono/metadata/marshal.c
+++ b/src/mono/mono/metadata/marshal.c
@@ -6798,11 +6798,15 @@ static void record_struct_field_physical_lowering (guint8* lowered_bytes, MonoTy
 
 static void record_inlinearray_struct_physical_lowering (guint8* lowered_bytes, MonoClass* klass, guint32 offset) 
 {
+	int align;
+	int type_offset = MONO_ABI_SIZEOF (MonoObject);
+
 	// Get the first field and record its physical lowering N times
-	MonoClassField* field = mono_class_get_fields_internal (klass, NULL);
+	gpointer iter = NULL;
+	MonoClassField* field = mono_class_get_fields_internal (klass, &iter);
 	MonoType* fieldType = field->type;
 	for (int i = 0; i < m_class_inlinearray_value(klass); ++i) {
-		record_struct_field_physical_lowering(lowered_bytes, fieldType, offset + m_field_get_offset(field) + i * mono_type_size(fieldType, NULL));
+		record_struct_field_physical_lowering(lowered_bytes, fieldType, offset + m_field_get_offset(field) + i * mono_type_size(fieldType, &align) - type_offset);
 	}
 }