Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use

an address in the first 2GB of the process's address space.  This flag should
have the same semantics as the same flag on Linux.

To facilitate this, add a new parameter to vm_map_find() that specifies an
optional maximum virtual address.  While here, fix several callers of
vm_map_find() to use a VMFS_* constant for the findspace argument instead of
TRUE and FALSE.

Reviewed by:	alc
Approved by:	re (kib)

1 files changed, 3 insertions, 6 deletions

diff --git a/sys/kern/imgact_gzip.c b/sys/kern/imgact_gzip.c
index 230854b..ab77a88 100644
--- a/sys/kern/imgact_gzip.c
+++ b/sys/kern/imgact_gzip.c
@@ -269,12 +269,9 @@ do_aout_hdr(struct imgact_gzip * gz)
 		 */
 		vmaddr = gz->virtual_offset + gz->a_out.a_text + 
 			gz->a_out.a_data;
-		error = vm_map_find(&vmspace->vm_map,
-				NULL,
-				0,
-				&vmaddr, 
-				gz->bss_size,
-				FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
+		error = vm_map_find(&vmspace->vm_map, NULL, 0, &vmaddr,
+		    gz->bss_size, 0, VMFS_NO_SPACE, VM_PROT_ALL, VM_PROT_ALL,
+		    0);
 		if (error) {
 			gz->where = __LINE__;
 			return (error);