diff options
| author | jhb <jhb@FreeBSD.org> | 2013-09-09 22:11:59 +0400 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-08-24 16:00:02 +0300 |
| commit | 472476a5a71d2490d2428d7552d501089393e884 (patch) | |
| tree | 13b78a65e2b474af7657e6b0d7cdba5c40345e21 /newlib/libc/sys/rtems | |
| parent | e6a85661cee799cd51c2afff4d6d5ec54d3e8a43 (diff) | |
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)
Diffstat (limited to 'newlib/libc/sys/rtems')
| -rw-r--r-- | newlib/libc/sys/rtems/include/sys/mman.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/newlib/libc/sys/rtems/include/sys/mman.h b/newlib/libc/sys/rtems/include/sys/mman.h index 536bfd562..6c757c8ba 100644 --- a/newlib/libc/sys/rtems/include/sys/mman.h +++ b/newlib/libc/sys/rtems/include/sys/mman.h @@ -91,6 +91,9 @@ */ #define MAP_NOCORE 0x00020000 /* dont include these pages in a coredump */ #define MAP_PREFAULT_READ 0x00040000 /* prefault mapping for reading */ +#ifdef __LP64__ +#define MAP_32BIT 0x00080000 /* map in the low 2GB of address space */ +#endif /* * Request specific alignment (n == log2 of the desired alignment). |