From a470ee6f93e94493d402d61b4d6e4c2cd91424e4 Mon Sep 17 00:00:00 2001
From: LoveSy <shana@zju.edu.cn>
Date: Sun, 25 Jun 2023 07:21:35 +0800
Subject: [PATCH] Fix mmap block device

---
 native/src/base/files.hpp | 3 +++
 native/src/base/files.rs  | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/native/src/base/files.hpp b/native/src/base/files.hpp
index 4610ffc29..0d8d11caf 100644
--- a/native/src/base/files.hpp
+++ b/native/src/base/files.hpp
@@ -6,6 +6,7 @@
 #include <string>
 #include <vector>
 
+#include <linux/fs.h>
 #include "misc.hpp"
 
 template <typename T>
@@ -42,6 +43,8 @@ struct mount_info {
 };
 
 struct mmap_data : public byte_data {
+    static_assert((sizeof(void *) == 8 && BLKGETSIZE64 == 0x80081272) ||
+                  (sizeof(void *) == 4 && BLKGETSIZE64 == 0x80041272));
     ALLOW_MOVE_ONLY(mmap_data)
 
     explicit mmap_data(const char *name, bool rw = false);
diff --git a/native/src/base/files.rs b/native/src/base/files.rs
index 59b12fc2d..521094577 100644
--- a/native/src/base/files.rs
+++ b/native/src/base/files.rs
@@ -483,8 +483,12 @@ pub(crate) fn map_file(path: &Utf8CStr, rw: bool) -> io::Result<&'static mut [u8
         fn ioctl(fd: RawFd, request: u32, ...) -> i32;
     }
 
+    #[cfg(target_pointer_width = "64")]
     const BLKGETSIZE64: u32 = 0x80081272;
 
+    #[cfg(target_pointer_width = "32")]
+    const BLKGETSIZE64: u32 = 0x80041272;
+
     let flag = if rw { O_RDWR } else { O_RDONLY };
     let f = File::from(open_fd!(path, flag | O_CLOEXEC)?);