diff options
| author | David S. Miller <davem@nuts.davemloft.net> | 2004-06-30 10:38:22 -0700 |
|---|---|---|
| committer | David S. Miller <davem@nuts.davemloft.net> | 2004-06-30 10:38:22 -0700 |
| commit | 21f4cfbb029f12f5fc2d77a576af5ce8fb6c429c (patch) | |
| tree | df629a401224b844575e2c15e22e20c64b52313c /include | |
| parent | b46041d99bbdf366b61c44ac9ded5dd5536a265a (diff) | |
[SPARC64]: Non-executable page support.
Based upon the PAX patches. Credit to PaX Team
<pageexec@freemail.hu>
Signed-off-by: David S. Miller <davem@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-sparc64/pgtable.h | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 505db07e2554..e3d4f6575a0e 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -180,16 +180,27 @@ /* Don't set the TTE _PAGE_W bit here, else the dirty bit never gets set. */ #define PAGE_SHARED __pgprot (_PAGE_PRESENT | _PAGE_VALID | _PAGE_CACHE | \ - __ACCESS_BITS | _PAGE_WRITE) + __ACCESS_BITS | _PAGE_WRITE | _PAGE_EXEC) #define PAGE_COPY __pgprot (_PAGE_PRESENT | _PAGE_VALID | _PAGE_CACHE | \ - __ACCESS_BITS) + __ACCESS_BITS | _PAGE_EXEC) #define PAGE_READONLY __pgprot (_PAGE_PRESENT | _PAGE_VALID | _PAGE_CACHE | \ - __ACCESS_BITS) + __ACCESS_BITS | _PAGE_EXEC) #define PAGE_KERNEL __pgprot (_PAGE_PRESENT | _PAGE_VALID | _PAGE_CACHE | \ - __PRIV_BITS | __ACCESS_BITS | __DIRTY_BITS) + __PRIV_BITS | \ + __ACCESS_BITS | __DIRTY_BITS | _PAGE_EXEC) + +#define PAGE_SHARED_NOEXEC __pgprot (_PAGE_PRESENT | _PAGE_VALID | \ + _PAGE_CACHE | \ + __ACCESS_BITS | _PAGE_WRITE) + +#define PAGE_COPY_NOEXEC __pgprot (_PAGE_PRESENT | _PAGE_VALID | \ + _PAGE_CACHE | __ACCESS_BITS) + +#define PAGE_READONLY_NOEXEC __pgprot (_PAGE_PRESENT | _PAGE_VALID | \ + _PAGE_CACHE | __ACCESS_BITS) #define _PFN_MASK _PAGE_PADDR @@ -197,18 +208,18 @@ __ACCESS_BITS | _PAGE_E) #define __P000 PAGE_NONE -#define __P001 PAGE_READONLY -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY +#define __P001 PAGE_READONLY_NOEXEC +#define __P010 PAGE_COPY_NOEXEC +#define __P011 PAGE_COPY_NOEXEC #define __P100 PAGE_READONLY #define __P101 PAGE_READONLY #define __P110 PAGE_COPY #define __P111 PAGE_COPY #define __S000 PAGE_NONE -#define __S001 PAGE_READONLY -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED +#define __S001 PAGE_READONLY_NOEXEC +#define __S010 PAGE_SHARED_NOEXEC +#define __S011 PAGE_SHARED_NOEXEC #define __S100 PAGE_READONLY #define __S101 PAGE_READONLY #define __S110 PAGE_SHARED |