kern: import `macros.h' from x15

Import the macro definitions from the x15 kernel project, and replace
all similar definitions littered all over the place with it.

Importing this file will make importing code from the x15 kernel
easier.  We are already using the red-black tree implementation and
the slab allocator from it, and we will import even more code in the
near future.

* kern/list.h: Do not define `structof', include `macros.h' instead.
* kern/rbtree.h: Likewise.
* kern/slab.c: Do not define `ARRAY_SIZE', include `macros.h' instead.
* i386/grub/misc.h: Likewise.
* i386/i386/xen.h: Do not define `barrier', include `macros.h' instead.
* kern/macro_help.h: Delete file.  Replaced by `macros.h'.
* kern/macros.h: New file.
* Makefrag.am (libkernel_a_SOURCES): Add new file, remove old file.
* device/dev_master.h: Adopt accordingly.
* device/io_req.h: Likewise.
* device/net_io.h: Likewise.
* i386/intel/read_fault.c: Likewise.
* ipc/ipc_kmsg.h: Likewise.
* ipc/ipc_mqueue.h: Likewise.
* ipc/ipc_object.h: Likewise.
* ipc/ipc_port.h: Likewise.
* ipc/ipc_space.h: Likewise.
* ipc/ipc_splay.c: Likewise.
* ipc/ipc_splay.h: Likewise.
* kern/assert.h: Likewise.
* kern/ast.h: Likewise.
* kern/pc_sample.h: Likewise.
* kern/refcount.h: Likewise.
* kern/sched.h: Likewise.
* kern/sched_prim.c: Likewise.
* kern/timer.c: Likewise.
* kern/timer.h: Likewise.
* vm/vm_fault.c: Likewise.
* vm/vm_map.h: Likewise.
* vm/vm_object.h: Likewise.
* vm/vm_page.h: Likewise.

3 files changed, 3 insertions, 3 deletions

diff --git a/i386/grub/misc.h b/i386/grub/misc.h
index c6cd4564..b71140a5 100644
--- a/i386/grub/misc.h
+++ b/i386/grub/misc.h
@@ -21,6 +21,7 @@
 #define GRUB_MISC_HEADER	1
 
 #include <stdarg.h>
+#include <kern/macros.h>
 #include <grub/types.h>
 #include <grub/symbol.h>
 #include <grub/err.h>
@@ -32,7 +33,6 @@
 #define ALIGN_UP_OVERHEAD(addr, align) ((-(addr)) & ((typeof (addr)) (align) - 1))
 #define ALIGN_DOWN(addr, align) \
 	((addr) & ~((typeof (addr)) align - 1))
-#define ARRAY_SIZE(array) (sizeof (array) / sizeof (array[0]))
 #define COMPILE_TIME_ASSERT(cond) switch (0) { case 1: case !(cond): ; }
 
 #define grub_dprintf(condition, ...) grub_real_dprintf(GRUB_FILE, __LINE__, condition, __VA_ARGS__)
diff --git a/i386/i386/xen.h b/i386/i386/xen.h
index 638d6713..c6811873 100644
--- a/i386/i386/xen.h
+++ b/i386/i386/xen.h
@@ -21,6 +21,7 @@
 
 #ifdef	MACH_XEN
 #ifndef	__ASSEMBLER__
+#include <kern/macros.h>
 #include <kern/printf.h>
 #include <mach/machine/vm_types.h>
 #include <mach/vm_param.h>
@@ -32,7 +33,6 @@
 #include <xen/public/xen.h>
 
 /* TODO: this should be moved in appropriate non-Xen place.  */
-#define barrier() __asm__ __volatile__ ("": : :"memory")
 #define mb() __asm__ __volatile__("lock; addl $0,0(%%esp)":::"memory")
 #define rmb() mb()
 #define wmb() mb()
diff --git a/i386/intel/read_fault.c b/i386/intel/read_fault.c
index 29f44396..4b1edce3 100644
--- a/i386/intel/read_fault.c
+++ b/i386/intel/read_fault.c
@@ -31,7 +31,7 @@
 #include <vm/vm_page.h>
 #include <vm/pmap.h>
 
-#include <kern/macro_help.h>
+#include <kern/macros.h>
 
 /*
  *	Expansion of vm_fault for read fault in kernel mode.