Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160225' into staging

Second pull req with getrandom fix

# gpg: Signature made Thu 25 Feb 2016 10:57:42 GMT using RSA key ID DE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"

* remotes/riku/tags/pull-linux-user-20160225:
  linux-user: add getrandom() syscall
  linux-user: correct timerfd_create syscall numbers
  linux-user: remove unavailable syscalls from aarch64
  linux-user: sync syscall numbers with kernel
  linux-user: Don't assert if guest tries shmdt(0)
  linux-user: set ppc64/ppc64le default CPU to POWER8
  build: [linux-user] Rename "syscall.h" to "target_syscall.h" in target directories
  linux-user: fix realloc size of target_fd_trans.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

36 files changed, 296 insertions, 93 deletions

diff --git a/linux-user/aarch64/syscall_nr.h b/linux-user/aarch64/syscall_nr.h
index 74f42758fb..59511d855d 100644
--- a/linux-user/aarch64/syscall_nr.h
+++ b/linux-user/aarch64/syscall_nr.h
@@ -262,7 +262,6 @@
 #define TARGET_NR_process_vm_writev 271
 #define TARGET_NR_kcmp 272
 #define TARGET_NR_finit_module 273
-
 #define TARGET_NR_sched_setattr 274
 #define TARGET_NR_sched_getattr 275
 #define TARGET_NR_renameat2 276
@@ -274,63 +273,5 @@
 #define TARGET_NR_userfaultfd 282
 #define TARGET_NR_membarrier 283
 #define TARGET_NR_mlock2 284
+#define TARGET_NR_copy_file_range 285
 
-#define TARGET_NR_open 1024
-#define TARGET_NR_link 1025
-#define TARGET_NR_unlink 1026
-#define TARGET_NR_mknod 1027
-#define TARGET_NR_chmod 1028
-#define TARGET_NR_chown 1029
-#define TARGET_NR_mkdir 1030
-#define TARGET_NR_rmdir 1031
-#define TARGET_NR_lchown 1032
-#define TARGET_NR_access 1033
-#define TARGET_NR_rename 1034
-#define TARGET_NR_readlink 1035
-#define TARGET_NR_symlink 1036
-#define TARGET_NR_utimes 1037
-#define TARGET_NR_stat 1038
-#define TARGET_NR_lstat 1039
-#define TARGET_NR_pipe 1040
-#define TARGET_NR_dup2 1041
-#define TARGET_NR_epoll_create 1042
-#define TARGET_NR_inotify_init 1043
-#define TARGET_NR_eventfd 1044
-#define TARGET_NR_signalfd 1045
-#define TARGET_NR_sendfile64 1046
-#define TARGET_NR_ftruncate64 1047
-#define TARGET_NR_truncate64 1048
-#define TARGET_NR_stat64 1049
-#define TARGET_NR_lstat64 1050
-#define TARGET_NR_fstat64 1051
-#define TARGET_NR_fcntl64 1052
-/* #define TARGET_NR_fadvise64 1053 */
-#define TARGET_NR_newfstatat 1054
-#define TARGET_NR_fstatfs64 1055
-#define TARGET_NR_statfs64 1056
-#define TARGET_NR_lseek64 1057
-#define TARGET_NR_mmap64 1058
-#define TARGET_NR_alarm 1059
-#define TARGET_NR_getpgrp 1060
-#define TARGET_NR_pause 1061
-#define TARGET_NR_time 1062
-#define TARGET_NR_utime 1063
-#define TARGET_NR_creat 1064
-#define TARGET_NR_getdents 1065
-#define TARGET_NR_futimesat 1066
-#define TARGET_NR_select 1067
-#define TARGET_NR_poll 1068
-#define TARGET_NR_epoll_wait 1069
-#define TARGET_NR_ustat 1070
-#define TARGET_NR_vfork 1071
-#define TARGET_NR_oldwait4 1072
-#define TARGET_NR_recv 1073
-#define TARGET_NR_send 1074
-#define TARGET_NR_bdflush 1075
-#define TARGET_NR_umount 1076
-#define TARGET_NR_uselib 1077
-#define TARGET_NR__sysctl 1078
-#define TARGET_NR_fork 1079
-#define TARGET_NR_syscalls (__NR_fork+1)
-
-#define TARGET_NR_sigreturn 1999
diff --git a/linux-user/aarch64/syscall.h b/linux-user/aarch64/target_syscall.h
index dc72a15c5e..f458018048 100644
--- a/linux-user/aarch64/syscall.h
+++ b/linux-user/aarch64/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 struct target_pt_regs {
     uint64_t        regs[31];
     uint64_t        sp;
@@ -11,3 +14,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ       2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/alpha/syscall_nr.h b/linux-user/alpha/syscall_nr.h
index dde8d5c6ad..00e14bb6b3 100644
--- a/linux-user/alpha/syscall_nr.h
+++ b/linux-user/alpha/syscall_nr.h
@@ -444,3 +444,9 @@
 #define TARGET_NR_process_vm_writev             505
 #define TARGET_NR_kcmp                          506
 #define TARGET_NR_finit_module                  507
+#define TARGET_NR_sched_setattr                 508
+#define TARGET_NR_sched_getattr                 509
+#define TARGET_NR_renameat2                     510
+#define TARGET_NR_getrandom                     511
+#define TARGET_NR_memfd_create                  512
+#define TARGET_NR_execveat                      513
diff --git a/linux-user/alpha/syscall.h b/linux-user/alpha/target_syscall.h
index 245cff2545..3db4b16f6b 100644
--- a/linux-user/alpha/syscall.h
+++ b/linux-user/alpha/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 /* default linux values for the selectors */
 #define __USER_DS	(1)
 
@@ -255,3 +258,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ              4096
 #define TARGET_MLOCKALL_MCL_CURRENT     0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE      0x4000
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/arm/syscall.h b/linux-user/arm/target_syscall.h
index 3844a96112..ea863db0b9 100644
--- a/linux-user/arm/syscall.h
+++ b/linux-user/arm/target_syscall.h
@@ -1,3 +1,5 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -48,3 +50,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/cris/syscall_nr.h b/linux-user/cris/syscall_nr.h
index 694bd02fa5..44f0b645b4 100644
--- a/linux-user/cris/syscall_nr.h
+++ b/linux-user/cris/syscall_nr.h
@@ -336,3 +336,27 @@
 #define TARGET_NR_preadv             333
 #define TARGET_NR_pwritev            334
 #define TARGET_NR_setns              335
+#define TARGET_NR_name_to_handle_at  336
+#define TARGET_NR_open_by_handle_at  337
+#define TARGET_NR_rt_tgsigqueueinfo  338
+#define TARGET_NR_perf_event_open    339
+#define TARGET_NR_recvmmsg           340
+#define TARGET_NR_accept4            341
+#define TARGET_NR_fanotify_init      342
+#define TARGET_NR_fanotify_mark      343
+#define TARGET_NR_prlimit64          344
+#define TARGET_NR_clock_adjtime      345
+#define TARGET_NR_syncfs             346
+#define TARGET_NR_sendmmsg           347
+#define TARGET_NR_process_vm_readv   348
+#define TARGET_NR_process_vm_writev  349
+#define TARGET_NR_kcmp               350
+#define TARGET_NR_finit_module       351
+#define TARGET_NR_sched_setattr      352
+#define TARGET_NR_sched_getattr      353
+#define TARGET_NR_renameat2          354
+#define TARGET_NR_seccomp            355
+#define TARGET_NR_getrandom          356
+#define TARGET_NR_memfd_create       357
+#define TARGET_NR_bpf                358
+#define TARGET_NR_execveat           359
diff --git a/linux-user/cris/syscall.h b/linux-user/cris/target_syscall.h
index 2957b0d6ae..2957b0d6ae 100644
--- a/linux-user/cris/syscall.h
+++ b/linux-user/cris/target_syscall.h
diff --git a/linux-user/i386/syscall_nr.h b/linux-user/i386/syscall_nr.h
index c8f7302194..bc1bc233ed 100644
--- a/linux-user/i386/syscall_nr.h
+++ b/linux-user/i386/syscall_nr.h
@@ -324,7 +324,7 @@
 #define TARGET_NR_epoll_pwait	319
 #define TARGET_NR_utimensat		320
 #define TARGET_NR_signalfd		321
-#define TARGET_NR_timerfd		322
+#define TARGET_NR_timerfd_create	322
 #define TARGET_NR_eventfd		323
 #define TARGET_NR_fallocate		324
 #define TARGET_NR_timerfd_settime	325
@@ -353,3 +353,30 @@
 #define TARGET_NR_process_vm_writev     348
 #define TARGET_NR_kcmp                  349
 #define TARGET_NR_finit_module          350
+#define TARGET_NR_sched_setattr         351
+#define TARGET_NR_sched_getattr         352
+#define TARGET_NR_renameat2             353
+#define TARGET_NR_seccomp               354
+#define TARGET_NR_getrandom             355
+#define TARGET_NR_memfd_create          356
+#define TARGET_NR_bpf                   357
+#define TARGET_NR_execveat              358
+#define TARGET_NR_socket                359
+#define TARGET_NR_socketpair            360
+#define TARGET_NR_bind                  361
+#define TARGET_NR_connect               362
+#define TARGET_NR_listen                363
+#define TARGET_NR_accept4               364
+#define TARGET_NR_getsockopt            365
+#define TARGET_NR_setsockopt            366
+#define TARGET_NR_getsockname           367
+#define TARGET_NR_getpeername           368
+#define TARGET_NR_sendto                369
+#define TARGET_NR_sendmsg               370
+#define TARGET_NR_recvfrom              371
+#define TARGET_NR_recvmsg               372
+#define TARGET_NR_shutdown              373
+#define TARGET_NR_userfaultfd           374
+#define TARGET_NR_membarrier            375
+#define TARGET_NR_mlock2                376
+#define TARGET_NR_copy_file_range       377
diff --git a/linux-user/i386/syscall.h b/linux-user/i386/target_syscall.h
index 906aaac0b1..0ac84dc02f 100644
--- a/linux-user/i386/syscall.h
+++ b/linux-user/i386/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 /* default linux values for the selectors */
 #define __USER_CS	(0x23)
 #define __USER_DS	(0x2B)
@@ -150,3 +153,5 @@ struct target_vm86plus_struct {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/m68k/syscall_nr.h b/linux-user/m68k/syscall_nr.h
index a2daba034a..4b50fb29b6 100644
--- a/linux-user/m68k/syscall_nr.h
+++ b/linux-user/m68k/syscall_nr.h
@@ -317,7 +317,7 @@
 #define TARGET_NR_epoll_pwait	315
 #define TARGET_NR_utimensat		316
 #define TARGET_NR_signalfd		317
-#define TARGET_NR_timerfd		318
+#define TARGET_NR_timerfd_create	318
 #define TARGET_NR_eventfd		319
 #define TARGET_NR_fallocate		320
 #define TARGET_NR_timerfd_settime	321
diff --git a/linux-user/m68k/syscall.h b/linux-user/m68k/target_syscall.h
index 9218493a44..97a4cc0cbd 100644
--- a/linux-user/m68k/syscall.h
+++ b/linux-user/m68k/target_syscall.h
@@ -1,3 +1,5 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -23,3 +25,5 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
 void do_m68k_simcall(CPUM68KState *, int);
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/main.c b/linux-user/main.c
index e719a2da02..2a692e0f0b 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -4160,7 +4160,7 @@ int main(int argc, char **argv, char **envp)
         cpu_model = "or1200";
 #elif defined(TARGET_PPC)
 # ifdef TARGET_PPC64
-        cpu_model = "POWER7";
+        cpu_model = "POWER8";
 # else
         cpu_model = "750";
 # endif
diff --git a/linux-user/microblaze/syscall_nr.h b/linux-user/microblaze/syscall_nr.h
index 6f530f9d1e..0704449bae 100644
--- a/linux-user/microblaze/syscall_nr.h
+++ b/linux-user/microblaze/syscall_nr.h
@@ -382,3 +382,11 @@
 #define TARGET_NR_process_vm_writev     378
 #define TARGET_NR_kcmp                  379
 #define TARGET_NR_finit_module          380
+#define TARGET_NR_sched_setattr         381
+#define TARGET_NR_sched_getattr         382
+#define TARGET_NR_renameat2             383
+#define TARGET_NR_seccomp               384
+#define TARGET_NR_getrandom             385
+#define TARGET_NR_memfd_create          386
+#define TARGET_NR_bpf                   387
+#define TARGET_NR_execveat              388
diff --git a/linux-user/microblaze/syscall.h b/linux-user/microblaze/target_syscall.h
index 3c1ed27c04..3c1ed27c04 100644
--- a/linux-user/microblaze/syscall.h
+++ b/linux-user/microblaze/target_syscall.h
diff --git a/linux-user/mips/syscall.h b/linux-user/mips/target_syscall.h
index 35ca23b166..68db160e53 100644
--- a/linux-user/mips/syscall.h
+++ b/linux-user/mips/target_syscall.h
@@ -1,3 +1,5 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -231,3 +233,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/mips64/syscall_nr.h b/linux-user/mips64/syscall_nr.h
index 004232a8a2..746cc267e9 100644
--- a/linux-user/mips64/syscall_nr.h
+++ b/linux-user/mips64/syscall_nr.h
@@ -316,6 +316,18 @@
 #define TARGET_NR_process_vm_writev     (TARGET_NR_Linux + 310)
 #define TARGET_NR_kcmp                  (TARGET_NR_Linux + 311)
 #define TARGET_NR_finit_module          (TARGET_NR_Linux + 312)
+#define TARGET_NR_sched_setattr         (TARGET_NR_Linux + 313)
+#define TARGET_NR_sched_getattr         (TARGET_NR_Linux + 314)
+#define TARGET_NR_renameat2             (TARGET_NR_Linux + 315)
+#define TARGET_NR_seccomp               (TARGET_NR_Linux + 316)
+#define TARGET_NR_getrandom             (TARGET_NR_Linux + 317)
+#define TARGET_NR_memfd_create          (TARGET_NR_Linux + 318)
+#define TARGET_NR_bpf                   (TARGET_NR_Linux + 319)
+#define TARGET_NR_execveat              (TARGET_NR_Linux + 320)
+#define TARGET_NR_userfaultfd           (TARGET_NR_Linux + 321)
+#define TARGET_NR_membarrier            (TARGET_NR_Linux + 322)
+#define TARGET_NR_mlock2                (TARGET_NR_Linux + 323)
+
 #else
 /*
  * Linux 64-bit syscalls are in the range from 5000 to 5999.
@@ -630,4 +642,15 @@
 #define TARGET_NR_kcmp                  (TARGET_NR_Linux + 306)
 #define TARGET_NR_finit_module          (TARGET_NR_Linux + 307)
 #define TARGET_NR_getdents64            (TARGET_NR_Linux + 308)
+#define TARGET_NR_sched_setattr         (TARGET_NR_Linux + 309)
+#define TARGET_NR_sched_getattr         (TARGET_NR_Linux + 310)
+#define TARGET_NR_renameat2             (TARGET_NR_Linux + 311)
+#define TARGET_NR_seccomp               (TARGET_NR_Linux + 312)
+#define TARGET_NR_getrandom             (TARGET_NR_Linux + 313)
+#define TARGET_NR_memfd_create          (TARGET_NR_Linux + 314)
+#define TARGET_NR_bpf                   (TARGET_NR_Linux + 315)
+#define TARGET_NR_execveat              (TARGET_NR_Linux + 316)
+#define TARGET_NR_userfaultfd           (TARGET_NR_Linux + 317)
+#define TARGET_NR_membarrier            (TARGET_NR_Linux + 318)
+#define TARGET_NR_mlock2                (TARGET_NR_Linux + 319)
 #endif
diff --git a/linux-user/mips64/syscall.h b/linux-user/mips64/target_syscall.h
index 6733107ddb..0e0c2d232f 100644
--- a/linux-user/mips64/syscall.h
+++ b/linux-user/mips64/target_syscall.h
@@ -1,3 +1,5 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -228,3 +230,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ      2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/openrisc/syscall_nr.h b/linux-user/openrisc/syscall_nr.h
index 4c386eae98..6b1c7d265e 100644
--- a/linux-user/openrisc/syscall_nr.h
+++ b/linux-user/openrisc/syscall_nr.h
@@ -382,9 +382,18 @@
 #define TARGET_NR_process_vm_writev 271
 #define TARGET_NR_kcmp 272
 #define TARGET_NR_finit_module 273
-
-#undef TARGET_NR_syscalls
-#define TARGET_NR_syscalls 274
+#define TARGET_NR_sched_setattr 274
+#define TARGET_NR_sched_getattr 275
+#define TARGET_NR_renameat2 276
+#define TARGET_NR_seccomp 277
+#define TARGET_NR_getrandom 278
+#define TARGET_NR_memfd_create 279
+#define TARGET_NR_bpf 280
+#define TARGET_NR_execveat 281
+#define TARGET_NR_userfaultfd 282
+#define TARGET_NR_membarrier 283
+#define TARGET_NR_mlock2 284
+#define TARGET_NR_copy_file_range 285
 
 /*
  * All syscalls below here should go away really,
@@ -411,9 +420,6 @@
 #define TARGET_NR_3264_stat 1038
 #define TARGET_NR_3264_lstat 1039
 
-#undef TARGET_NR_syscalls
-#define TARGET_NR_syscalls (TARGET_NR_3264_lstat+1)
-
 #define TARGET_NR_pipe 1040
 #define TARGET_NR_dup2 1041
 #define TARGET_NR_epoll_create 1042
@@ -421,10 +427,6 @@
 #define TARGET_NR_eventfd 1044
 #define TARGET_NR_signalfd 1045
 
-#undef TARGET_NR_syscalls
-#define TARGET_NR_syscalls (TARGET_NR_signalfd+1)
-
-
 #define TARGET_NR_sendfile 1046
 #define TARGET_NR_ftruncate 1047
 #define TARGET_NR_truncate 1048
@@ -441,9 +443,6 @@
 #define TARGET_NR_lseek 1057
 #define TARGET_NR_mmap 1058
 
-#undef TARGET_NR_syscalls
-#define TARGET_NR_syscalls (TARGET_NR_mmap+1)
-
 #define TARGET_NR_alarm 1059
 #define __ARCH_WANT_SYS_ALARM
 #define TARGET_NR_getpgrp 1060
@@ -477,9 +476,6 @@
 
 #define TARGET_NR_fork 1079
 
-#undef TARGET_NR_syscalls
-#define TARGET_NR_syscalls (TARGET_NR_fork+1)
-
 
 /*
  * 32 bit systems traditionally used different
diff --git a/linux-user/openrisc/syscall.h b/linux-user/openrisc/target_syscall.h
index 8ac03656d4..19aeffc95d 100644
--- a/linux-user/openrisc/syscall.h
+++ b/linux-user/openrisc/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 struct target_pt_regs {
     union {
         struct {
@@ -27,3 +30,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/ppc/syscall_nr.h b/linux-user/ppc/syscall_nr.h
index 1e1736e11d..46ed8a68ce 100644
--- a/linux-user/ppc/syscall_nr.h
+++ b/linux-user/ppc/syscall_nr.h
@@ -319,7 +319,7 @@
 #define TARGET_NR_epoll_pwait	303
 #define TARGET_NR_utimensat		304
 #define TARGET_NR_signalfd		305
-#define TARGET_NR_timerfd		306
+#define TARGET_NR_timerfd_create	306
 #define TARGET_NR_eventfd		307
 #define TARGET_NR_sync_file_range2	308
 #define TARGET_NR_fallocate		309
@@ -368,3 +368,27 @@
 #define TARGET_NR_process_vm_writev     352
 #define TARGET_NR_finit_module          353
 #define TARGET_NR_kcmp                  354
+#define TARGET_NR_sched_setattr         355
+#define TARGET_NR_sched_getattr         356
+#define TARGET_NR_renameat2             357
+#define TARGET_NR_seccomp               358
+#define TARGET_NR_getrandom             359
+#define TARGET_NR_memfd_create          360
+#define TARGET_NR_bpf                   361
+#define TARGET_NR_execveat              362
+#define TARGET_NR_switch_endian         363
+#define TARGET_NR_userfaultfd           364
+#define TARGET_NR_membarrier            365
+#define TARGET_NR_semop                 366
+#define TARGET_NR_semget                367
+#define TARGET_NR_semctl                368
+#define TARGET_NR_semtimedop            369
+#define TARGET_NR_msgsnd                370
+#define TARGET_NR_msgrcv                371
+#define TARGET_NR_msgget                372
+#define TARGET_NR_msgctl                373
+#define TARGET_NR_shmat                 374
+#define TARGET_NR_shmdt                 375
+#define TARGET_NR_shmget                376
+#define TARGET_NR_shmctl                377
+#define TARGET_NR_mlock2                378
diff --git a/linux-user/ppc/syscall.h b/linux-user/ppc/target_syscall.h
index 0daf5cd2df..35cab59462 100644
--- a/linux-user/ppc/syscall.h
+++ b/linux-user/ppc/target_syscall.h
@@ -17,6 +17,9 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 /* XXX: ABSOLUTELY BUGGY:
  * for now, this is quite just a cut-and-paste from i386 target...
  */
@@ -73,3 +76,5 @@ struct target_revectored_struct {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index ba5b433d99..26b0ba2736 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -13,7 +13,7 @@
 
 #include "exec/user/thunk.h"
 #include "syscall_defs.h"
-#include "syscall.h"
+#include "target_syscall.h"
 #include "exec/gdbstub.h"
 #include "qemu/queue.h"
 
diff --git a/linux-user/s390x/syscall_nr.h b/linux-user/s390x/syscall_nr.h
index 7c0b8b2eaa..1a66c5561d 100644
--- a/linux-user/s390x/syscall_nr.h
+++ b/linux-user/s390x/syscall_nr.h
@@ -271,6 +271,36 @@
 #define TARGET_NR_s390_runtime_instr    342
 #define TARGET_NR_kcmp                  343
 #define TARGET_NR_finit_module          344
+#define TARGET_NR_sched_setattr         345
+#define TARGET_NR_sched_getattr         346
+#define TARGET_NR_renameat2             347
+#define TARGET_NR_seccomp               348
+#define TARGET_NR_getrandom             349
+#define TARGET_NR_memfd_create          350
+#define TARGET_NR_bpf                   351
+#define TARGET_NR_s390_pci_mmio_write   352
+#define TARGET_NR_s390_pci_mmio_read    353
+#define TARGET_NR_execveat              354
+#define TARGET_NR_userfaultfd           355
+#define TARGET_NR_membarrier            356
+#define TARGET_NR_recvmmsg              357
+#define TARGET_NR_sendmmsg              358
+#define TARGET_NR_socket                359
+#define TARGET_NR_socketpair            360
+#define TARGET_NR_bind                  361
+#define TARGET_NR_connect               362
+#define TARGET_NR_listen                363
+#define TARGET_NR_accept4               364
+#define TARGET_NR_getsockopt            365
+#define TARGET_NR_setsockopt            366
+#define TARGET_NR_getsockname           367
+#define TARGET_NR_getpeername           368
+#define TARGET_NR_sendto                369
+#define TARGET_NR_sendmsg               370
+#define TARGET_NR_recvfrom              371
+#define TARGET_NR_recvmsg               372
+#define TARGET_NR_shutdown              373
+#define TARGET_NR_mlock2                374
 
 /*
  * There are some system calls that are not present on 64 bit, some
diff --git a/linux-user/s390x/syscall.h b/linux-user/s390x/target_syscall.h
index 35f170af25..02061efc78 100644
--- a/linux-user/s390x/syscall.h
+++ b/linux-user/s390x/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 /* this typedef defines how a Program Status Word looks like */
 typedef struct {
     abi_ulong mask;
@@ -27,3 +30,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ        2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/sh4/syscall_nr.h b/linux-user/sh4/syscall_nr.h
index bdf8742c69..50099846d2 100644
--- a/linux-user/sh4/syscall_nr.h
+++ b/linux-user/sh4/syscall_nr.h
@@ -323,7 +323,7 @@
 #define TARGET_NR_epoll_pwait	319
 #define TARGET_NR_utimensat		320
 #define TARGET_NR_signalfd		321
-#define TARGET_NR_timerfd		322
+#define TARGET_NR_timerfd_create	322
 #define TARGET_NR_eventfd		323
 #define TARGET_NR_fallocate		324
 #define TARGET_NR_timerfd_settime	325
diff --git a/linux-user/sh4/syscall.h b/linux-user/sh4/target_syscall.h
index 7aa4f239c5..9f3381bc9b 100644
--- a/linux-user/sh4/syscall.h
+++ b/linux-user/sh4/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 struct target_pt_regs {
         unsigned long regs[16];
         unsigned long pc;
@@ -15,3 +18,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/sparc/syscall_nr.h b/linux-user/sparc/syscall_nr.h
index 181cd32653..732b1052a4 100644
--- a/linux-user/sparc/syscall_nr.h
+++ b/linux-user/sparc/syscall_nr.h
@@ -278,7 +278,7 @@
 #define TARGET_NR_epoll_pwait	309
 #define TARGET_NR_utimensat		310
 #define TARGET_NR_signalfd		311
-#define TARGET_NR_timerfd		312
+#define TARGET_NR_timerfd_create	312
 #define TARGET_NR_eventfd		313
 #define TARGET_NR_fallocate		314
 #define TARGET_NR_timerfd_settime	315
@@ -309,3 +309,17 @@
 #define TARGET_NR_kern_features         340
 #define TARGET_NR_kcmp                  341
 #define TARGET_NR_finit_module          342
+#define TARGET_NR_sched_setattr         343
+#define TARGET_NR_sched_getattr         344
+#define TARGET_NR_renameat2             345
+#define TARGET_NR_seccomp               346
+#define TARGET_NR_getrandom             347
+#define TARGET_NR_memfd_create          348
+#define TARGET_NR_bpf                   349
+#define TARGET_NR_execveat              350
+#define TARGET_NR_membarrier            351
+#define TARGET_NR_userfaultfd           352
+#define TARGET_NR_bind                  353
+#define TARGET_NR_listen                354
+#define TARGET_NR_setsockopt            355
+#define TARGET_NR_mlock2                356
diff --git a/linux-user/sparc/syscall.h b/linux-user/sparc/target_syscall.h
index 58573b92ea..a73fa6dae1 100644
--- a/linux-user/sparc/syscall.h
+++ b/linux-user/sparc/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 struct target_pt_regs {
 	abi_ulong psr;
 	abi_ulong pc;
@@ -18,3 +21,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ      4096
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/sparc64/syscall_nr.h b/linux-user/sparc64/syscall_nr.h
index 34a984cc88..2b49ead267 100644
--- a/linux-user/sparc64/syscall_nr.h
+++ b/linux-user/sparc64/syscall_nr.h
@@ -341,3 +341,17 @@
 #define TARGET_NR_kern_features         340
 #define TARGET_NR_kcmp                  341
 #define TARGET_NR_finit_module          342
+#define TARGET_NR_sched_setattr         343
+#define TARGET_NR_sched_getattr         344
+#define TARGET_NR_renameat2             345
+#define TARGET_NR_seccomp               346
+#define TARGET_NR_getrandom             347
+#define TARGET_NR_memfd_create          348
+#define TARGET_NR_bpf                   349
+#define TARGET_NR_execveat              350
+#define TARGET_NR_membarrier            351
+#define TARGET_NR_userfaultfd           352
+#define TARGET_NR_bind                  353
+#define TARGET_NR_listen                354
+#define TARGET_NR_setsockopt            355
+#define TARGET_NR_mlock2                356
diff --git a/linux-user/sparc64/syscall.h b/linux-user/sparc64/target_syscall.h
index 8398d3f463..eb827fcac1 100644
--- a/linux-user/sparc64/syscall.h
+++ b/linux-user/sparc64/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 struct target_pt_regs {
 	abi_ulong u_regs[16];
 	abi_ulong tstate;
@@ -19,3 +22,5 @@ struct target_pt_regs {
 #define TARGET_MINSIGSTKSZ      4096
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
+
+#endif  /* TARGET_SYSCALL_H */
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 54ce14a611..951753143c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -249,6 +249,9 @@ _syscall2(int, ioprio_get, int, which, int, who)
 #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
 _syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
 #endif
+#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
+_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
+#endif
 
 static bitmask_transtbl fcntl_flags_tbl[] = {
   { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
@@ -318,8 +321,8 @@ static void fd_trans_register(int fd, TargetFdTrans *trans)
     if (fd >= target_fd_max) {
         oldmax = target_fd_max;
         target_fd_max = ((fd >> 6) + 1) << 6; /* by slice of 64 entries */
-        target_fd_trans = g_realloc(target_fd_trans,
-                                    target_fd_max * sizeof(TargetFdTrans));
+        target_fd_trans = g_renew(TargetFdTrans *,
+                                  target_fd_trans, target_fd_max);
         memset((void *)(target_fd_trans + oldmax), 0,
                (target_fd_max - oldmax) * sizeof(TargetFdTrans *));
     }
@@ -2598,8 +2601,9 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
 #define N_SHM_REGIONS	32
 
 static struct shm_region {
-    abi_ulong	start;
-    abi_ulong	size;
+    abi_ulong start;
+    abi_ulong size;
+    bool in_use;
 } shm_regions[N_SHM_REGIONS];
 
 struct target_semid_ds
@@ -3291,7 +3295,8 @@ static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
                    ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
 
     for (i = 0; i < N_SHM_REGIONS; i++) {
-        if (shm_regions[i].start == 0) {
+        if (!shm_regions[i].in_use) {
+            shm_regions[i].in_use = true;
             shm_regions[i].start = raddr;
             shm_regions[i].size = shm_info.shm_segsz;
             break;
@@ -3308,8 +3313,8 @@ static inline abi_long do_shmdt(abi_ulong shmaddr)
     int i;
 
     for (i = 0; i < N_SHM_REGIONS; ++i) {
-        if (shm_regions[i].start == shmaddr) {
-            shm_regions[i].start = 0;
+        if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
+            shm_regions[i].in_use = false;
             page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
             break;
         }
@@ -5229,7 +5234,6 @@ static inline int target_to_host_mlockall_arg(int arg)
 }
 #endif
 
-#if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
 static inline abi_long host_to_target_stat64(void *cpu_env,
                                              abi_ulong target_addr,
                                              struct stat *host_st)
@@ -5292,7 +5296,6 @@ static inline abi_long host_to_target_stat64(void *cpu_env,
 
     return 0;
 }
-#endif
 
 /* ??? Using host futex calls even when target atomic operations
    are not really atomic probably breaks things.  However implementing
@@ -7541,6 +7544,16 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         ret = get_errno(shutdown(arg1, arg2));
         break;
 #endif
+#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
+    case TARGET_NR_getrandom:
+        p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
+        if (!p) {
+            goto efault;
+        }
+        ret = get_errno(getrandom(p, arg2, arg3));
+        unlock_user(p, arg1, ret);
+        break;
+#endif
 #ifdef TARGET_NR_socket
     case TARGET_NR_socket:
         ret = do_socket(arg1, arg2, arg3);
diff --git a/linux-user/tilegx/syscall_nr.h b/linux-user/tilegx/syscall_nr.h
index 1dca348378..87fb72c554 100644
--- a/linux-user/tilegx/syscall_nr.h
+++ b/linux-user/tilegx/syscall_nr.h
@@ -274,6 +274,10 @@
 #define TARGET_NR_memfd_create                  279
 #define TARGET_NR_bpf                           280
 #define TARGET_NR_execveat                      281
+#define TARGET_NR_userfaultfd                   282
+#define TARGET_NR_membarrier                    283
+#define TARGET_NR_mlock2                        284
+#define TARGET_NR_copy_file_range               285
 
 #define TARGET_NR_open                          1024
 #define TARGET_NR_link                          1025
diff --git a/linux-user/tilegx/syscall.h b/linux-user/tilegx/target_syscall.h
index a938d4e90c..a938d4e90c 100644
--- a/linux-user/tilegx/syscall.h
+++ b/linux-user/tilegx/target_syscall.h
diff --git a/linux-user/unicore32/syscall.h b/linux-user/unicore32/target_syscall.h
index 385a97562d..385a97562d 100644
--- a/linux-user/unicore32/syscall.h
+++ b/linux-user/unicore32/target_syscall.h
diff --git a/linux-user/x86_64/syscall_nr.h b/linux-user/x86_64/syscall_nr.h
index 7c59e3a09e..16397b3e8f 100644
--- a/linux-user/x86_64/syscall_nr.h
+++ b/linux-user/x86_64/syscall_nr.h
@@ -281,7 +281,7 @@
 #define TARGET_NR_utimensat		280
 #define TARGET_NR_epoll_pwait	281
 #define TARGET_NR_signalfd		282
-#define TARGET_NR_timerfd		283
+#define TARGET_NR_timerfd_create	283
 #define TARGET_NR_eventfd		284
 #define TARGET_NR_fallocate		285
 #define TARGET_NR_timerfd_settime	286
@@ -312,3 +312,16 @@
 #define TARGET_NR_process_vm_writev     311
 #define TARGET_NR_kcmp                  312
 #define TARGET_NR_finit_module          313
+#define TARGET_NR_sched_setattr         314
+#define TARGET_NR_sched_getattr         315
+#define TARGET_NR_renameat2             316
+#define TARGET_NR_seccomp               317
+#define TARGET_NR_getrandom             318
+#define TARGET_NR_memfd_create          319
+#define TARGET_NR_kexec_file_load       320
+#define TARGET_NR_bpf                   321
+#define TARGET_NR_execveat              322
+#define TARGET_NR_userfaultfd           323
+#define TARGET_NR_membarrier            324
+#define TARGET_NR_mlock2                325
+#define TARGET_NR_copy_file_range       326
diff --git a/linux-user/x86_64/syscall.h b/linux-user/x86_64/target_syscall.h
index 88b3c3fe31..feecd32d50 100644
--- a/linux-user/x86_64/syscall.h
+++ b/linux-user/x86_64/target_syscall.h
@@ -1,3 +1,6 @@
+#ifndef TARGET_SYSCALL_H
+#define TARGET_SYSCALL_H
+
 #define __USER_CS	(0x33)
 #define __USER_DS	(0x2B)
 
@@ -100,3 +103,5 @@ struct target_msqid64_ds {
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
+
+#endif  /* TARGET_SYSCALL_H */