Update SHM_* constants

* xlat/shm_flags.in: Add SHM_EXEC introduced by kernel commit
v2.6.9-rc2~23^2~93^2~78.
* xlat/shm_resource_flags.in: Add SHM_NORESERVE introduced by kernel
commit v2.6.15-rc1~622.
* NEWS: Mention this.
* tests/ipc_shm.c (main): Update expected output.
* tests/shmxt.c (main): Update expected output, check SHM_EXEC decoding.

NEWS

@@ -5,7 +5,7 @@ Noteworthy changes in release ?.?? (????-??-??)
   * Implemented decoding of netlink descriptor attributes as file descriptors.
   * Enhanced decoding of getsockopt and setsockopt syscalls for SOL_NETLINK
     level.
-  * Updated the list of MSG_* constants.
+  * Updated lists of MSG_* and SHM_* constants.
 
 Noteworthy changes in release 4.20 (2017-11-13)
 ===============================================

tests/ipc_shm.c

@@ -70,12 +70,14 @@ main(void)
 	struct shmid_ds ds;
 
 	rc = shmget(bogus_key, bogus_size, bogus_flags);
-	printf("shmget\\(%#llx, %zu, %s%s%s%#x\\|%#04o\\) += %s\n",
+	printf("shmget\\(%#llx, %zu, %s%s%s%s%#x\\|%#04o\\) += %s\n",
 	       zero_extend_signed_to_ull(bogus_key), bogus_size,
 	       IPC_CREAT & bogus_flags ? "IPC_CREAT\\|" : "",
 	       IPC_EXCL & bogus_flags ? "IPC_EXCL\\|" : "",
 	       SHM_HUGETLB & bogus_flags ? "SHM_HUGETLB\\|" : "",
-	       bogus_flags & ~(0777 | IPC_CREAT | IPC_EXCL | SHM_HUGETLB),
+	       SHM_NORESERVE & bogus_flags ? "SHM_NORESERVE\\|" : "",
+	       bogus_flags & ~(0777 | IPC_CREAT | IPC_EXCL
+				    | SHM_HUGETLB | SHM_NORESERVE),
 	       bogus_flags & 0777, sprintrc_grep(rc));
 
 	id = shmget(private_key, 1, 0600);

tests/shmxt.c

@@ -34,8 +34,8 @@ main(void)
 	atexit(cleanup);
 
 	rc = (long) shmat(bogus_shmid, bogus_shmaddr, bogus_shmflg);
-	printf("%s(%d, %p, SHM_REMAP|SHM_RDONLY|SHM_RND|%#x) = %s\n",
-	       SHMAT, bogus_shmid, bogus_shmaddr, bogus_shmflg & ~0x7000,
+	printf("%s(%d, %p, SHM_RDONLY|SHM_RND|SHM_REMAP|SHM_EXEC|%#x) = %s\n",
+	       SHMAT, bogus_shmid, bogus_shmaddr, bogus_shmflg & ~0xf000,
 	       sprintrc(rc));
 
 	shmat(id, NULL, SHM_REMAP);
@@ -50,18 +50,31 @@ main(void)
 	rc = shmdt(NULL);
 	printf("shmdt(NULL) = %s\n", sprintrc(rc));
 
-	if (shmdt(shmaddr))
-		perror_msg_and_skip("shmdt");
-	printf("shmdt(%p) = 0\n", shmaddr);
+	rc = shmdt(shmaddr);
+	printf("shmdt(%p) = %s\n", shmaddr, sprintrc(rc));
 
 	++shmaddr;
 	void *shmaddr2 = shmat(id, shmaddr, SHM_RND);
 	if (shmaddr2 == (void *)(-1))
 		printf("%s(%d, %p, SHM_RND) = -1 %s (%m)\n",
 		       SHMAT, id, shmaddr, errno2name());
-	else
+	else {
 		printf("%s(%d, %p, SHM_RND) = %p\n",
 		       SHMAT, id, shmaddr, shmaddr2);
+		rc = shmdt(shmaddr2);
+		printf("shmdt(%p) = %s\n", shmaddr2, sprintrc(rc));
+	}
+
+	shmaddr = shmat(id, NULL, SHM_RDONLY|SHM_EXEC);
+	if (shmaddr == (void *)(-1))
+		printf("%s(%d, NULL, SHM_RDONLY|SHM_EXEC) = %s\n",
+		       SHMAT, id, sprintrc(-1));
+	else {
+		printf("%s(%d, NULL, SHM_RDONLY|SHM_EXEC) = %p\n",
+		       SHMAT, id, shmaddr);
+		rc = shmdt(shmaddr);
+		printf("shmdt(%p) = %s\n", shmaddr, sprintrc(rc));
+	}
 
 	puts("+++ exited with 0 +++");
 	return 0;

xlat/shm_flags.in

@@ -1,3 +1,4 @@
-SHM_REMAP
 SHM_RDONLY
 SHM_RND
+SHM_REMAP
+SHM_EXEC

xlat/shm_resource_flags.in

@@ -1,3 +1,4 @@
 IPC_CREAT
 IPC_EXCL
 SHM_HUGETLB
+SHM_NORESERVE