libmango: add flags parameter to address_space_map

2026-04-21 21:11:42 +01:00
parent bc575aa1a1
commit 8b7382fa13
3 changed files with 13 additions and 1 deletions
@@ -34,6 +34,16 @@
 #define KERN_HANDLE_FLAG2            0x40000000UL
 #define KERN_HANDLE_FLAG3            0x80000000UL

+/* flags to specify when creating address-space mappings */
+/* this mapping is private. if a task with this mapping is duplicated,
+   the duplicate task will receive a copy-on-write mapping. changes to one
+   mapping will not be visible to the other. */
+#define VM_PRIVATE                   0x0000u
+/* this mapping is shared. if a task with this mapping is duplicated,
+ * the duplicate will receive a mapping of the same data. changes to one mapping
+ * will be visibile to the other */
+#define VM_SHARED                    0x0001u
+
 /* maximum number of handles that can be sent in a single message */
 #define KERN_MSG_MAX_HANDLES         64

@@ -107,6 +117,7 @@ typedef unsigned int kern_status_t;
 typedef uint32_t kern_handle_t;
 typedef uint32_t kern_config_key_t;
 typedef uint32_t vm_prot_t;
+typedef uint32_t vm_flags_t;
 typedef int64_t ssize_t;
 typedef uint32_t kern_futex_t;
 typedef uint32_t kern_msg_type_t;