diff options
| author | Neal H. Walfield <neal@gnu.org> | 2008-12-05 09:11:52 +0100 |
|---|---|---|
| committer | Neal H. Walfield <neal@gnu.org> | 2008-12-05 09:11:52 +0100 |
| commit | 5bed3f1024e35f85a27763dd99bed0e3186c3fb0 (patch) | |
| tree | 897bc71a84058e2e4d136714359297a3d2017bf4 /hurd | |
| parent | c844c089b4d78d12446f8e0cb70074ed9ac9ac52 (diff) | |
Define PTR_TO_PAGE.
2008-12-05 Neal H. Walfield <neal@gnu.org>
* addr.h (PTR_TO_PAGE): Define.
Diffstat (limited to 'hurd')
| -rw-r--r-- | hurd/ChangeLog | 4 | ||||
| -rw-r--r-- | hurd/addr.h | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/hurd/ChangeLog b/hurd/ChangeLog index d6d9ad7..42b4e3c 100644 --- a/hurd/ChangeLog +++ b/hurd/ChangeLog @@ -1,5 +1,9 @@ 2008-12-05 Neal H. Walfield <neal@gnu.org> + * addr.h (PTR_TO_PAGE): Define. + +2008-12-05 Neal H. Walfield <neal@gnu.org> + * addr.h: Don't include <l4/math.h>. Include <math.h>. (addr_depth): Use vg_lsb64, not l4_lsb64. diff --git a/hurd/addr.h b/hurd/addr.h index 571c8c0..40092b2 100644 --- a/hurd/addr.h +++ b/hurd/addr.h @@ -157,6 +157,10 @@ addr_extract (addr_t addr, int width) #define PTR_TO_ADDR(ptr_) \ (ADDR ((uintptr_t) (ptr_), ADDR_BITS)) +/* Return the address of the page that would contain pointer PTR_. */ +#define PTR_TO_PAGE(ptr_) \ + addr_chop (ADDR ((uintptr_t) (ptr_), ADDR_BITS), PAGESIZE_LOG2) + static inline addr_t addr_add (addr_t addr, uint64_t count) { |