Add live update-friendly annotations.

Change-Id: I7d7d79893836a20799ca548a350f3288e92581f0

minix/drivers/power/acpi/acpi.c

@@ -100,8 +100,22 @@ void init_acpi(void)
 
 static int sef_cb_init_fresh(int type, sef_init_info_t *info)
 {
+	int r;
+
 	init_acpi();
 
+	/* Let SEF know about ACPI special cache word. */
+	r = sef_llvm_add_special_mem_region((void*)0xCACACACA, 1,
+	    "%MMAP_CACHE_WORD");
+	if(r < 0) {
+	    printf("acpi: sef_llvm_add_special_mem_region failed %d\n", r);
+	}
+
+	/* XXX To-do: acpi requires custom state transfer handlers for
+	 * unions acpi_operand_object and acpi_generic_state (and nested unions)
+	 * for generic state transfer to work correctly.
+	 */
+
 	return OK;
 }
 

minix/fs/mfs/buf.h

@@ -3,7 +3,7 @@
 
 #include "clean.h"
 
-union fsdata_u {
+union ixfer_fsdata_u {
     char b__data[1];			/* ordinary user data */
     struct direct b__dir[1];		/* directory block */
     zone_t  b__v2_ind[1];		/* V2 indirect block */
@@ -12,10 +12,10 @@ union fsdata_u {
 };
 
 /* These defs make it possible to use to bp->b_data instead of bp->b.b__data */
-#define b_data(b)   ((union fsdata_u *) b->data)->b__data
+#define b_data(b)   ((union ixfer_fsdata_u *) b->data)->b__data
-#define b_dir(b)    ((union fsdata_u *) b->data)->b__dir
+#define b_dir(b)    ((union ixfer_fsdata_u *) b->data)->b__dir
-#define b_v2_ind(b) ((union fsdata_u *) b->data)->b__v2_ind
+#define b_v2_ind(b) ((union ixfer_fsdata_u *) b->data)->b__v2_ind
-#define b_v2_ino(b) ((union fsdata_u *) b->data)->b__v2_ino
+#define b_v2_ino(b) ((union ixfer_fsdata_u *) b->data)->b__v2_ino
-#define b_bitmap(b) ((union fsdata_u *) b->data)->b__bitmap
+#define b_bitmap(b) ((union ixfer_fsdata_u *) b->data)->b__bitmap
 
 #endif

minix/fs/procfs/main.c

@@ -68,7 +68,7 @@ init_hook(void)
  */
 int main(void)
 {
-	struct inode_stat stat;
+	static struct inode_stat stat;
 	int r;
 
 	/*

minix/fs/procfs/tree.c

@@ -2,9 +2,13 @@
 
 #include "inc.h"
 
-struct proc proc[NR_PROCS + NR_TASKS];
+typedef struct proc ixfer_proc_t;
-struct mproc mproc[NR_PROCS];
+typedef struct fproc ixfer_fproc_t;
-struct fproc fproc[NR_PROCS];
+typedef struct mproc ixfer_mproc_t;
+
+ixfer_proc_t proc[NR_PROCS + NR_TASKS];
+ixfer_mproc_t mproc[NR_PROCS];
+ixfer_fproc_t fproc[NR_PROCS];
 
 static int nr_pid_entries;
 

minix/include/minix/const.h

@@ -30,6 +30,12 @@
 #endif
 #endif
 
+#ifndef _MINIX_MAGIC
+#define __ALIGNED(X) __aligned(X)
+#else
+#define __ALIGNED(X)
+#endif
+
 #define EXTERN        extern	/* used in *.h files */
 
 #define TRUE               1	/* used for turning integers into Booleans */

minix/include/minix/ipc.h

@@ -2024,7 +2024,7 @@ typedef struct {
 } mess_vmmcp_reply;
 _ASSERT_MSG_SIZE(mess_vmmcp_reply);
 
-typedef struct {
+typedef struct noxfer_message {
 	endpoint_t m_source;		/* who sent the message */
 	int m_type;			/* what kind of message is it */
 	union {
@@ -2254,7 +2254,7 @@ typedef struct {
 
 		u8_t size[56];	/* message payload may have 56 bytes at most */
 	};
-} message __aligned(16);
+} message __ALIGNED(16);
 
 /* Ensure the complete union respects the IPC assumptions. */
 typedef int _ASSERT_message[/* CONSTCOND */sizeof(message) == 64 ? 1 : -1];

minix/include/minix/safecopies.h

@@ -9,7 +9,7 @@
 
 typedef struct {
 	int cp_flags;	/* CPF_* below */
-	union {
+	union ixfer_cp_u{
 		struct {
 			/* CPF_DIRECT */
 			endpoint_t	cp_who_to;	/* grantee */

minix/include/minix/timers.h

@@ -23,7 +23,7 @@
 
 struct minix_timer;
 typedef void (*tmr_func_t)(struct minix_timer *tp);
-typedef union { int ta_int; long ta_long; void *ta_ptr; } tmr_arg_t;
+typedef union { int ta_int; long ta_long; void *ta_ptr; } ixfer_tmr_arg_t;
 
 /* A minix_timer_t variable must be declare for each distinct timer to be used.
  * The timers watchdog function and expiration time are automatically set
@@ -34,7 +34,7 @@ typedef struct minix_timer
   struct minix_timer	*tmr_next;	/* next in a timer chain */
   clock_t 	tmr_exp_time;	/* expiration time */
   tmr_func_t	tmr_func;	/* function to call when expired */
-  tmr_arg_t	tmr_arg;	/* random argument */
+  ixfer_tmr_arg_t tmr_arg;	/* random argument */
 } minix_timer_t;
 
 /* Used when the timer is not active. */

minix/kernel/proc.h

@@ -96,7 +96,7 @@ struct proc {
 #define VMSTYPE_MAP		3
 
 	int		type;		/* suspended operation */
-	union {
+	union ixfer_saved{
 		/* VMSTYPE_SYS_MESSAGE */
 		message		reqmsg;	/* suspended request message */
 	} saved;
@@ -104,7 +104,7 @@ struct proc {
 	/* Parameters of request to VM */
 	int		req_type;
 	endpoint_t	target;
-	union {
+	union ixfer_params{
 		struct {
 			vir_bytes 	start, length;	/* memory range */
 			u8_t		writeflag;	/* nonzero for write access */

minix/net/inet/generic/arp.c

@@ -38,7 +38,7 @@ typedef struct arp46
 	ether_addr_t a46_dstaddr;
 	ether_addr_t a46_srcaddr;
 	ether_type_t a46_ethtype;
-	union
+	union ixfer_arp46_u
 	{
 		struct
 		{

minix/net/inet/generic/event.h

@@ -13,13 +13,12 @@ Copyright 1995 Philip Homburg
 
 struct event;
 
-typedef union ev_arg
+typedef struct ev_arg
 {
-	int ev_int;
 	void *ev_ptr;
 } ev_arg_t;
 
-typedef void (*ev_func_t) ARGS(( struct event *ev, union ev_arg eva ));
+typedef void (*ev_func_t) ARGS(( struct event *ev, ev_arg_t eva ));
 
 typedef struct event
 {

minix/net/inet/generic/ip.c

@@ -80,6 +80,7 @@ void ip_init()
 		ip_port->ip_dl_type= icp->ic_devtype;
 		ip_port->ip_mtu= IP_DEF_MTU;
 		ip_port->ip_mtu_max= IP_MAX_PACKSIZE;
+		memset(&ip_port->ip_dl, 0, sizeof(ip_port->ip_dl));
 
 		switch(ip_port->ip_dl_type)
 		{

minix/net/inet/generic/ip_int.h

@@ -29,7 +29,7 @@ typedef struct ip_port
 {
 	int ip_flags, ip_dl_type;
 	int ip_port;
-	union
+	union sxfer_ip_dl_u
 	{
 		struct
 		{
@@ -45,9 +45,11 @@ typedef struct ip_port
 		} dl_eth;
 		struct
 		{
+			int dummy_int[3];
 			int ps_port;
 			acc_t *ps_send_head;
 			acc_t *ps_send_tail;
+			void* dummy_ptr[3];
 		} dl_ps;
 	} ip_dl;
 	ipaddr_t ip_ipaddr;

minix/net/inet/inet_config.c

@@ -109,7 +109,7 @@ static void check_dev(int type, int ifno)
 		char	*defname;
 		mode_t	mode;
 		u8_t	minor_off;
-	} devlist[] = {
+	} devlist[5] = {
 		{	(char *) "/dev/eth",	0600,	ETH_DEV_OFF	},
 		{	(char *) "/dev/psip",	0600,	PSIP_DEV_OFF	},
 		{	(char *) "/dev/ip",	0600,	IP_DEV_OFF	},
@@ -423,7 +423,9 @@ void *alloc(size_t size)
 {
 	/* Allocate memory on the heap with sbrk(). */
 
-	return malloc(size);
+	void *addr = malloc(size);
+	memset(addr, 0, size);
+	return addr;
 }
 
 /*

minix/servers/devman/main.c

@@ -70,8 +70,8 @@ read_hook
 int main (int argc, char* argv[])
 {
 
-	struct fs_hooks hooks;
+	static struct fs_hooks hooks;
-	struct inode_stat root_stat;
+	static struct inode_stat root_stat;
 
 	/* fill in the hooks */
 	memset(&hooks, 0, sizeof(hooks));

minix/servers/ds/store.h

@@ -18,9 +18,9 @@ struct data_store {
 	char	key[DS_MAX_KEYLEN];	/* key to lookup information */
 	char	owner[DS_MAX_KEYLEN];
 
-	union {
+	union dsi_u {
 		unsigned u32;
-		struct {
+		struct dsi_mem {
 			void *data;
 			size_t length;
 			size_t reallen;

minix/servers/is/dmp_ds.c

@@ -3,7 +3,7 @@
 
 #define LINES 22
 
-static struct data_store ds_store[NR_DS_KEYS];
+static struct data_store noxfer_ds_store[NR_DS_KEYS];
 
 void data_store_dmp()
 {
@@ -11,7 +11,7 @@ void data_store_dmp()
   static int prev_i = 0;
   int i, n = 0;
 
-  if (getsysinfo(DS_PROC_NR, SI_DATA_STORE, ds_store, sizeof(ds_store)) != OK) {
+  if (getsysinfo(DS_PROC_NR, SI_DATA_STORE, noxfer_ds_store, sizeof(noxfer_ds_store)) != OK) {
 	printf("Error obtaining table from DS. Perhaps recompile IS?\n");
 	return;
   }
@@ -19,7 +19,7 @@ void data_store_dmp()
   printf("Data store contents:\n");
   printf("-slot- -----------key----------- -----owner----- ---type--- ----value---\n");
   for(i = prev_i; i < NR_DS_KEYS && n < LINES; i++) {
-	p = &ds_store[i];
+	p = &noxfer_ds_store[i];
 	if(!(p->flags & DSF_IN_USE))
 		continue;
 

minix/servers/rs/type.h

@@ -52,6 +52,7 @@ struct rupdate {
 };
 
 /* Definition of an entry of the system process table. */
+typedef struct priv ixfer_priv_s;
 struct rproc {
   struct rprocpub *r_pub;       /* pointer to the corresponding public entry */
   struct rproc *r_old_rp;       /* pointer to the slot with the old version */
@@ -83,7 +84,7 @@ struct rproc {
   char *r_exec;			/* Executable image */ 
   size_t r_exec_len;		/* Length of image */
 
-  struct priv r_priv;		/* Privilege structure to be passed to the
+  ixfer_priv_s r_priv;		/* Privilege structure to be passed to the
 				 * kernel.
 				 */
   uid_t r_uid;

minix/servers/vfs/fproc.h

@@ -5,6 +5,7 @@
 
 #include <sys/select.h>
 #include <minix/safecopies.h>
+#include <minix/sef.h>
 
 /* This is the per-process information.  A slot is reserved for each potential
  * process. Thus NR_PROCS must be the same as in the kernel. It is not

minix/servers/vfs/select.c

@@ -32,12 +32,14 @@
 #define FROM_PROC 0
 #define TO_PROC   1
 
+typedef fd_set *ixfer_fd_set_ptr;
+
 static struct selectentry {
   struct fproc *requestor;	/* slot is free iff this is NULL */
   endpoint_t req_endpt;
   fd_set readfds, writefds, errorfds;
   fd_set ready_readfds, ready_writefds, ready_errorfds;
-  fd_set *vir_readfds, *vir_writefds, *vir_errorfds;
+  ixfer_fd_set_ptr vir_readfds, vir_writefds, vir_errorfds;
   struct filp *filps[OPEN_MAX];
   int type[OPEN_MAX];
   int nfds, nreadyfds;

minix/servers/vm/pagetable.c

@@ -147,7 +147,7 @@ static u32_t findhole(int pages)
 /* Find a space in the virtual address space of VM. */
 	u32_t curv;
 	int pde = 0, try_restart;
-	static u32_t lastv = 0;
+	static void *lastv = 0;
 	pt_t *pt = &vmprocess->vm_pt;
 	vir_bytes vmin, vmax;
 	u32_t holev = NO_MEM;
@@ -163,7 +163,7 @@ static u32_t findhole(int pages)
 	assert((vmax % VM_PAGE_SIZE) == 0);
 	assert(pages > 0);
 
-	curv = lastv;
+	curv = (u32_t) lastv;
 	if(curv < vmin || curv >= vmax)
 		curv = vmin;
 
@@ -198,7 +198,7 @@ static u32_t findhole(int pages)
 
 			/* if it's big enough, return it */
 			if(holesize == pages) {
-				lastv = curv + VM_PAGE_SIZE;
+				lastv = (void*) (curv + VM_PAGE_SIZE);
 				return holev;
 			}
 		}

minix/servers/vm/slaballoc.c

@@ -116,11 +116,13 @@ struct sdh {
 #define JUNK  0xdeadbeef
 #define NOJUNK 0xc0ffee
 
+struct slabdata {
+	u8_t 	data[DATABYTES];
+	struct	sdh sdh;
+};
+
 static struct slabheader {
-	struct slabdata {
+	struct slabdata *list_head;
-		u8_t 	data[DATABYTES];
-		struct	sdh sdh;
-	} *list_head;
 } slabs[SLABSIZES];
 
 static int objstats(void *, int, struct slabheader **, struct slabdata