[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, 31 insertions, 0 deletions

diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h
new file mode 100644
index 000000000000..9a7b374c9fb4
--- /dev/null
+++ b/include/linux/auxvec.h
@@ -0,0 +1,31 @@
+#ifndef _LINUX_AUXVEC_H
+#define _LINUX_AUXVEC_H
+
+#include <asm/auxvec.h>
+
+/* Symbolic values for the entries in the auxiliary table
+   put on the initial stack */
+#define AT_NULL   0     /* end of vector */
+#define AT_IGNORE 1     /* entry should be ignored */
+#define AT_EXECFD 2     /* file descriptor of program */
+#define AT_PHDR   3     /* program headers for program */
+#define AT_PHENT  4     /* size of program header entry */
+#define AT_PHNUM  5     /* number of program headers */
+#define AT_PAGESZ 6     /* system page size */
+#define AT_BASE   7     /* base address of interpreter */
+#define AT_FLAGS  8     /* flags */
+#define AT_ENTRY  9     /* entry point of program */
+#define AT_NOTELF 10    /* program is not ELF */
+#define AT_UID    11    /* real uid */
+#define AT_EUID   12    /* effective uid */
+#define AT_GID    13    /* real gid */
+#define AT_EGID   14    /* effective gid */
+#define AT_PLATFORM 15  /* string identifying CPU for optimizations */
+#define AT_HWCAP  16    /* arch dependent hints at CPU capabilities */
+#define AT_CLKTCK 17    /* frequency at which times() increments */
+
+#define AT_SECURE 23   /* secure mode boolean */
+
+#define AT_VECTOR_SIZE  42 /* Size of auxiliary table.  */
+
+#endif /* _LINUX_AUXVEC_H */