diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index 9fa00c6edac1..b63d8a0172bc 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -3088,6 +3088,12 @@ pub const FILE_SHARE_DELETE = 0x00000004;
 pub const FILE_SHARE_READ = 0x00000001;
 pub const FILE_SHARE_WRITE = 0x00000002;
 
+pub const FILE_MAP_READ = SECTION_MAP_READ;
+pub const FILE_MAP_WRITE = SECTION_MAP_WRITE;
+pub const FILE_MAP_EXECUTE = SECTION_MAP_EXECUTE;
+pub const FILE_MAP_LARGE_PAGES = 0x20000000;
+pub const FILE_MAP_TARGETS_INVALID = 0x40000000;
+
 pub const DELETE = 0x00010000;
 pub const READ_CONTROL = 0x00020000;
 pub const WRITE_DAC = 0x00040000;
diff --git a/lib/std/os/windows/kernel32.zig b/lib/std/os/windows/kernel32.zig
index 942d7ddba791..128290c976c0 100644
--- a/lib/std/os/windows/kernel32.zig
+++ b/lib/std/os/windows/kernel32.zig
@@ -97,6 +97,15 @@ pub extern "kernel32" fn CreateFileW(
     hTemplateFile: ?HANDLE,
 ) callconv(WINAPI) HANDLE;
 
+pub extern "kernel32" fn CreateFileMappingA(
+    hFile: HANDLE,
+    lpFileMappingAttributes: ?*SECURITY_ATTRIBUTES,
+    flProtect: DWORD,
+    dwMaximumSizeHigh: DWORD,
+    dwMaximumSizeLow: DWORD,
+    lpName: ?[*:0]const u8,
+) callconv(WINAPI) ?HANDLE;
+
 pub extern "kernel32" fn CreatePipe(
     hReadPipe: *HANDLE,
     hWritePipe: *HANDLE,
@@ -264,6 +273,10 @@ pub extern "kernel32" fn VirtualQuery(lpAddress: ?LPVOID, lpBuffer: PMEMORY_BASI
 
 pub extern "kernel32" fn LocalFree(hMem: HLOCAL) callconv(WINAPI) ?HLOCAL;
 
+pub extern "kernel32" fn MapViewOfFile(hFileMappingObject: HANDLE, dwDesiredAccess: DWORD, dwFileOffsetHigh: DWORD, dwFileOffsetLow: DWORD, dwNumberOfBytesToMap: SIZE_T) callconv(WINAPI) ?LPVOID;
+pub extern "kernel32" fn UnmapViewOfFile(lpBaseAddress: *const anyopaque) BOOL;
+
+
 pub extern "kernel32" fn Module32First(hSnapshot: HANDLE, lpme: *MODULEENTRY32) callconv(WINAPI) BOOL;
 
 pub extern "kernel32" fn Module32Next(hSnapshot: HANDLE, lpme: *MODULEENTRY32) callconv(WINAPI) BOOL;