Change the ABI of some of the structures used by the SYSV IPC API:

- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
  short.
- The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned
  short.
- The mode member of struct ipc_perm is now mode_t instead of unsigned short
  (this is merely a style bug).
- The rather dubious padding fields for ABI compat with SV/I386 have been
  removed from struct msqid_ds and struct semid_ds.
- The shm_segsz member of struct shmid_ds is now a size_t instead of an
  int.  This removes the need for the shm_bsegsz member in struct
  shmid_kernel and should allow for complete support of SYSV SHM regions
  >= 2GB.
- The shm_nattch member of struct shmid_ds is now an int instead of a
  short.
- The shm_internal member of struct shmid_ds is now gone.  The internal
  VM object pointer for SHM regions has been moved into struct
  shmid_kernel.
- The existing __semctl(), msgctl(), and shmctl() system call entries are
  now marked COMPAT7 and new versions of those system calls which support
  the new ABI are now present.
- The new system calls are assigned to the FBSD-1.1 version in libc.  The
  FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls.
- A simplistic framework for tagging system calls with compatibility
  symbol versions has been added to libc.  Version tags are added to
  system calls by adding an appropriate __sym_compat() entry to
  src/lib/libc/incldue/compat.h. [1]

PR:		kern/16195 kern/113218 bin/129855
Reviewed by:	arch@, rwatson
Discussed with:	kan, kib [1]

1 files changed, 12 insertions, 6 deletions

diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master
index 204e7da..940f13d 100644
--- a/sys/kern/syscalls.master
+++ b/sys/kern/syscalls.master
@@ -417,15 +417,15 @@
 
 ;
 ; The following were introduced with NetBSD/4.4Lite-2
-220	AUE_SEMCTL	NOSTD	{ int __semctl(int semid, int semnum, \
-				    int cmd, union semun *arg); }
+220	AUE_SEMCTL	COMPAT7|NOSTD { int __semctl(int semid, int semnum, \
+				    int cmd, union semun_old *arg); }
 221	AUE_SEMGET	NOSTD	{ int semget(key_t key, int nsems, \
 				    int semflg); }
 222	AUE_SEMOP	NOSTD	{ int semop(int semid, struct sembuf *sops, \
 				    size_t nsops); }
 223	AUE_NULL	UNIMPL	semconfig
-224	AUE_MSGCTL	NOSTD	{ int msgctl(int msqid, int cmd, \
-				    struct msqid_ds *buf); }
+224	AUE_MSGCTL	COMPAT7|NOSTD { int msgctl(int msqid, int cmd, \
+				    struct msqid_ds_old *buf); }
 225	AUE_MSGGET	NOSTD	{ int msgget(key_t key, int msgflg); }
 226	AUE_MSGSND	NOSTD	{ int msgsnd(int msqid, const void *msgp, \
 				    size_t msgsz, int msgflg); }
@@ -433,8 +433,8 @@
 				    size_t msgsz, long msgtyp, int msgflg); }
 228	AUE_SHMAT	NOSTD	{ int shmat(int shmid, const void *shmaddr, \
 				    int shmflg); }
-229	AUE_SHMCTL	NOSTD	{ int shmctl(int shmid, int cmd, \
-				    struct shmid_ds *buf); }
+229	AUE_SHMCTL	COMPAT7|NOSTD { int shmctl(int shmid, int cmd, \
+				    struct shmid_ds_old *buf); }
 230	AUE_SHMDT	NOSTD	{ int shmdt(const void *shmaddr); }
 231	AUE_SHMGET	NOSTD	{ int shmget(key_t key, size_t size, \
 				    int shmflg); }
@@ -904,5 +904,11 @@
 				    unsigned int iovcnt, int flags); }
 508	AUE_NULL	STD	{ int jail_remove(int jid); }
 509	AUE_CLOSEFROM	STD	{ int closefrom(int lowfd); }
+510	AUE_SEMCTL	NOSTD	{ int __semctl(int semid, int semnum, \
+				    int cmd, union semun *arg); }
+511	AUE_MSGCTL	NOSTD	{ int msgctl(int msqid, int cmd, \
+				    struct msqid_ds *buf); }
+512	AUE_SHMCTL	NOSTD	{ int shmctl(int shmid, int cmd, \
+				    struct shmid_ds *buf); }
 ; Please copy any additions and changes to the following compatability tables:
 ; sys/compat/freebsd32/syscalls.master