From cbaf642ffe4b05f8796798ebdc5c6892605928cc Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sun, 6 Nov 2022 16:45:36 -0500
Subject: Initial ARM64 support

---
 src/common/common_funcs.h  | 4 +++-
 src/common/host_memory.cpp | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/common')

diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index e1e2a90fc..0dad9338a 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -31,8 +31,10 @@
 
 #ifndef _MSC_VER
 
-#ifdef ARCHITECTURE_x86_64
+#if defined(ARCHITECTURE_x86_64)
 #define Crash() __asm__ __volatile__("int $3")
+#elif defined(ARCHITECTURE_arm64)
+#define Crash() __asm__ __volatile__("brk #0")
 #else
 #define Crash() exit(1)
 #endif
diff --git a/src/common/host_memory.cpp b/src/common/host_memory.cpp
index 7f9659612..909f6cf3f 100644
--- a/src/common/host_memory.cpp
+++ b/src/common/host_memory.cpp
@@ -359,6 +359,12 @@ public:
             }
         });
 
+        long page_size = sysconf(_SC_PAGESIZE);
+        if (page_size != 0x1000) {
+            LOG_CRITICAL(HW_Memory, "page size {:#x} is incompatible with 4K paging", page_size);
+            throw std::bad_alloc{};
+        }
+
         // Backing memory initialization
 #if defined(__FreeBSD__) && __FreeBSD__ < 13
         // XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
-- 
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