Adds most of the toolsHEADmaster

1 files changed, 29 insertions, 0 deletions

diff --git a/v_windows/v/vlib/builtin/linux_bare/memory_managment.v b/v_windows/v/vlib/builtin/linux_bare/memory_managment.v
new file mode 100644
index 0000000..9c23dcf
--- /dev/null
+++ b/v_windows/v/vlib/builtin/linux_bare/memory_managment.v
@@ -0,0 +1,29 @@
+module builtin
+
+fn mm_alloc(size u64) (&byte, Errno) {
+	// BEGIN CONSTS
+	// the constants need to be here, since the initialization of other constants,
+	// which happen before these ones would, require malloc
+	mem_prot := MemProt(int(MemProt.prot_read) | int(MemProt.prot_write))
+	map_flags := MapFlags(int(MapFlags.map_private) | int(MapFlags.map_anonymous))
+	// END CONSTS
+
+	a, e := sys_mmap(&byte(0), size + sizeof(u64), mem_prot, map_flags, -1, 0)
+	if e == .enoerror {
+		unsafe {
+			mut ap := &u64(a)
+			*ap = size
+			x2 := &byte(a + sizeof(u64))
+			return x2, e
+		}
+	}
+	return &byte(0), e
+}
+
+fn mm_free(addr &byte) Errno {
+	unsafe {
+		ap := &u64(addr - sizeof(u64))
+		size := *ap
+		return sys_munmap(addr - sizeof(u64), size + sizeof(u64))
+	}
+}