mman: Move mincore() to libc/mman.cc

Move mincore() to libc/mman.cc where all other memory mapping libc
functions are.

Reviewed-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

libc/mman.cc

@@ -13,6 +13,7 @@
 #include "osv/dentry.h"
 #include "osv/mount.h"
 #include "libc/libc.hh"
+#include <safe-ptr.hh>
 
 TRACEPOINT(trace_memory_mmap, "addr=%p, length=%d, prot=%d, flags=%d, fd=%d, offset=%d", void *, size_t, int, int, int, off_t);
 TRACEPOINT(trace_memory_mmap_err, "%d", int);
@@ -186,3 +187,23 @@ int msync(void *addr, size_t length, int flags)
     }
     return err.to_libc();
 }
+
+int mincore(void *addr, size_t length, unsigned char *vec)
+{
+    if (!mmu::is_page_aligned(addr)) {
+        return libc_error(EINVAL);
+    }
+    if (!mmu::is_linear_mapped(addr, length) && !mmu::ismapped(addr, length)) {
+        return libc_error(ENOMEM);
+    }
+    char *end = align_up((char *)addr + length, mmu::page_size);
+    char tmp;
+    for (char *p = (char *)addr; p < end; p += mmu::page_size) {
+        if (safe_load(p, tmp)) {
+            *vec++ = 0x01;
+        } else {
+            *vec++ = 0x00;
+        }
+    }
+    return 0;
+}

runtime.cc

@@ -48,7 +48,6 @@
 #include <map>
 #include <boost/range/adaptor/reversed.hpp>
 #include "align.hh"
-#include <safe-ptr.hh>
 #include <osv/stubbing.hh>
 #include "drivers/pvpanic.hh"
 #include <api/sys/resource.h>
@@ -195,26 +194,6 @@ int getpid()
     return 0;
 }
 
-int mincore(void *addr, size_t length, unsigned char *vec)
-{
-    if (!mmu::is_page_aligned(addr)) {
-        return libc_error(EINVAL);
-    }
-    if (!mmu::is_linear_mapped(addr, length) && !mmu::ismapped(addr, length)) {
-        return libc_error(ENOMEM);
-    }
-    char *end = align_up((char *)addr + length, mmu::page_size);
-    char tmp;
-    for (char *p = (char *)addr; p < end; p += mmu::page_size) {
-        if (safe_load(p, tmp)) {
-            *vec++ = 0x01;
-        } else {
-            *vec++ = 0x00;
-        }
-    }
-    return 0;
-}
-
 //    WCTDEF(alnum), WCTDEF(alpha), WCTDEF(blank), WCTDEF(cntrl),
 //    WCTDEF(digit), WCTDEF(graph), WCTDEF(lower), WCTDEF(print),
 //    WCTDEF(punct), WCTDEF(space), WCTDEF(upper), WCTDEF(xdigit),