[PATCH] auxiliary vector cleanups

The size of auxiliary vector is fixed at 42 in linux/sched.h.  But it isn't
very obvious when looking at linux/elf.h.  This patch adds AT_VECTOR_SIZE
so that we can change it if necessary when a new vector is added.

Because of include file ordering problems, doing this necessitated the
extraction of the AT_* symbols into a standalone header file.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/asm-alpha/auxvec.h b/include/asm-alpha/auxvec.h
new file mode 100644
index 000000000000..e96fe880e310
--- /dev/null
+++ b/include/asm-alpha/auxvec.h
@@ -0,0 +1,24 @@
+#ifndef __ASM_ALPHA_AUXVEC_H
+#define __ASM_ALPHA_AUXVEC_H
+
+/* Reserve these numbers for any future use of a VDSO.  */
+#if 0
+#define AT_SYSINFO              32
+#define AT_SYSINFO_EHDR         33
+#endif
+
+/* More complete cache descriptions than AT_[DIU]CACHEBSIZE.  If the
+   value is -1, then the cache doesn't exist.  Otherwise:
+
+      bit 0-3:    Cache set-associativity; 0 means fully associative.
+      bit 4-7:    Log2 of cacheline size.
+      bit 8-31:   Size of the entire cache >> 8.
+      bit 32-63:  Reserved.
+*/
+
+#define AT_L1I_CACHESHAPE       34
+#define AT_L1D_CACHESHAPE       35
+#define AT_L2_CACHESHAPE        36
+#define AT_L3_CACHESHAPE        37
+
+#endif /* __ASM_ALPHA_AUXVEC_H */