add prim/osx directory

CMakeLists.txt

@@ -38,20 +38,20 @@ include(GNUInstallDirs)
 include("cmake/mimalloc-config-version.cmake")
 
 set(mi_sources
-    src/stats.c
-    src/random.c
-    src/os.c
-    src/bitmap.c
-    src/arena.c
-    src/region.c
-    src/segment.c
-    src/page.c
     src/alloc.c
     src/alloc-aligned.c
     src/alloc-posix.c
+    src/arena.c
+    src/bitmap.c
     src/heap.c
-    src/options.c
     src/init.c
+    src/options.c
+    src/os.c
+    src/page.c
+    src/random.c
+    src/region.c
+    src/segment.c
+    src/stats.c
     src/prim/prim.c)
 
 set(mi_cflags "")
@@ -92,7 +92,7 @@ if(MI_OVERRIDE)
     if(MI_OSX_ZONE)
       # use zone's on macOS
       message(STATUS "  Use malloc zone to override malloc (MI_OSX_ZONE=ON)")
-      list(APPEND mi_sources src/alloc-override-osx.c)
+      list(APPEND mi_sources src/prim/osx/alloc-override-zone.c)
       list(APPEND mi_defines MI_OSX_ZONE=1)
       if (NOT MI_OSX_INTERPOSE)
         message(STATUS "  WARNING: zone overriding usually also needs interpose (use -DMI_OSX_INTERPOSE=ON)")

src/prim/osx/prim.c

@@ -0,0 +1,9 @@
+/* ----------------------------------------------------------------------------
+Copyright (c) 2018-2023, Microsoft Research, Daan Leijen
+This is free software; you can redistribute it and/or modify it under the
+terms of the MIT license. A copy of the license can be found in the file
+"LICENSE" at the root of this distribution.
+-----------------------------------------------------------------------------*/
+
+// We use the unix/prim.c with the mmap API on macOSX
+#include "../unix/prim.c"

src/prim/prim.c

@@ -10,9 +10,15 @@ terms of the MIT license. A copy of the license can be found in the file
 
 #if defined(_WIN32)
 #include "windows/prim.c"  // VirtualAlloc (Windows)
+
+#elif defined(__APPLE__)
+#include "osx/prim.c"      // macOSX (actually defers to mmap in unix/prim.c)
+
 #elif defined(__wasi__)
 #define MI_USE_SBRK
 #include "wasi/prim.c"     // memory-grow or sbrk (Wasm)
+
 #else
 #include "unix/prim.c"     // mmap() (Linux, macOSX, BSD, Illumnos, Haiku, DragonFly, etc.)
+
 #endif

src/static.c

@@ -20,11 +20,8 @@ terms of the MIT license. A copy of the license can be found in the file
 // containing the whole library. If it is linked first
 // it will override all the standard library allocation
 // functions (on Unix's).
-#include "alloc.c"
+#include "alloc.c"          // includes alloc-override.c
 #include "alloc-aligned.c"
-#if MI_OSX_ZONE
-#include "alloc-override-osx.c"
-#endif
 #include "alloc-posix.c"
 #include "arena.c"
 #include "bitmap.c"
@@ -32,9 +29,12 @@ terms of the MIT license. A copy of the license can be found in the file
 #include "init.c"
 #include "options.c"
 #include "os.c"
-#include "page.c"
+#include "page.c"           // includes page-queue.c
-#include "prim/prim.c"
+#include "random.c" 
-#include "random.c"
 #include "region.c"
 #include "segment.c"
 #include "stats.c"
+#include "prim/prim.c"
+#if MI_OSX_ZONE
+#include "prim/osx/alloc-override-zone.c"
+#endif