sys/linux: first 64bit big-endian architecture s390x

* mmap syscall is special on Linux s390x because
  the parameters for this syscall are passed as a struct
  on user stack instead of registers.
* Introduce the SyscallTrampolines table into targets.Target
  to address the above problem.
* There is a bug in Linux kernel s390x which causes QEMU TCG
  to hang when KASAN is enabled. The bug has been fixed
  in the forthcoming Linux 5.8 version. Until then do not enable
  KASAN when using QEMU TCG, QEMU KVM shall have no problems with
  KASAN.

Signed-off-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/sys/linux/prctl_s390x.const b/sys/linux/prctl_s390x.const
new file mode 100644
index 000000000..b628b9d9a
--- /dev/null
+++ b/sys/linux/prctl_s390x.const
@@ -0,0 +1,125 @@
+# AUTOGENERATED FILE
+# ARCH_GET_CPUID is not set
+# ARCH_GET_FS is not set
+# ARCH_GET_GS is not set
+# ARCH_MAP_VDSO_32 is not set
+# ARCH_MAP_VDSO_64 is not set
+# ARCH_MAP_VDSO_X32 is not set
+# ARCH_SET_CPUID is not set
+# ARCH_SET_FS is not set
+# ARCH_SET_GS is not set
+CAP_LAST_CAP = 39
+PR_CAPBSET_DROP = 24
+PR_CAPBSET_READ = 23
+PR_CAP_AMBIENT = 47
+PR_CAP_AMBIENT_CLEAR_ALL = 4
+PR_CAP_AMBIENT_IS_SET = 1
+PR_CAP_AMBIENT_LOWER = 3
+PR_CAP_AMBIENT_RAISE = 2
+PR_ENDIAN_BIG = 0
+PR_ENDIAN_LITTLE = 1
+PR_ENDIAN_PPC_LITTLE = 2
+PR_FPEMU_NOPRINT = 1
+PR_FPEMU_SIGFPE = 2
+PR_FP_EXC_ASYNC = 2
+PR_FP_EXC_DISABLED = 0
+PR_FP_EXC_DIV = 65536
+PR_FP_EXC_INV = 1048576
+PR_FP_EXC_NONRECOV = 1
+PR_FP_EXC_OVF = 131072
+PR_FP_EXC_PRECISE = 3
+PR_FP_EXC_RES = 524288
+PR_FP_EXC_SW_ENABLE = 128
+PR_FP_EXC_UND = 262144
+PR_FP_MODE_FR = 1
+PR_FP_MODE_FRE = 2
+PR_GET_CHILD_SUBREAPER = 37
+PR_GET_DUMPABLE = 3
+PR_GET_ENDIAN = 19
+PR_GET_FPEMU = 9
+PR_GET_FPEXC = 11
+PR_GET_FP_MODE = 46
+PR_GET_KEEPCAPS = 7
+PR_GET_NAME = 16
+PR_GET_NO_NEW_PRIVS = 39
+PR_GET_PDEATHSIG = 2
+PR_GET_SECCOMP = 21
+PR_GET_SECUREBITS = 27
+PR_GET_SPECULATION_CTRL = 52
+PR_GET_THP_DISABLE = 42
+PR_GET_TID_ADDRESS = 40
+PR_GET_TIMERSLACK = 30
+PR_GET_TIMING = 13
+PR_GET_TSC = 25
+PR_GET_UNALIGN = 5
+PR_MCE_KILL = 33
+PR_MCE_KILL_CLEAR = 0
+PR_MCE_KILL_DEFAULT = 2
+PR_MCE_KILL_EARLY = 1
+PR_MCE_KILL_GET = 34
+PR_MCE_KILL_LATE = 0
+PR_MCE_KILL_SET = 1
+PR_MPX_DISABLE_MANAGEMENT = 44
+PR_MPX_ENABLE_MANAGEMENT = 43
+PR_SET_CHILD_SUBREAPER = 36
+PR_SET_DUMPABLE = 4
+PR_SET_ENDIAN = 20
+PR_SET_FPEMU = 10
+PR_SET_FPEXC = 12
+PR_SET_FP_MODE = 45
+PR_SET_KEEPCAPS = 8
+PR_SET_MM = 35
+PR_SET_MM_ARG_END = 9
+PR_SET_MM_ARG_START = 8
+PR_SET_MM_AUXV = 12
+PR_SET_MM_BRK = 7
+PR_SET_MM_END_CODE = 2
+PR_SET_MM_END_DATA = 4
+PR_SET_MM_ENV_END = 11
+PR_SET_MM_ENV_START = 10
+PR_SET_MM_EXE_FILE = 13
+PR_SET_MM_MAP = 14
+PR_SET_MM_MAP_SIZE = 15
+PR_SET_MM_START_BRK = 6
+PR_SET_MM_START_CODE = 1
+PR_SET_MM_START_DATA = 3
+PR_SET_MM_START_STACK = 5
+PR_SET_NAME = 15
+PR_SET_NO_NEW_PRIVS = 38
+PR_SET_PDEATHSIG = 1
+PR_SET_PTRACER = 1499557217
+PR_SET_SECCOMP = 22
+PR_SET_SECUREBITS = 28
+PR_SET_SPECULATION_CTRL = 53
+PR_SET_THP_DISABLE = 41
+PR_SET_TIMERSLACK = 29
+PR_SET_TIMING = 14
+PR_SET_TSC = 26
+PR_SET_UNALIGN = 6
+PR_SPEC_DISABLE = 4
+PR_SPEC_ENABLE = 2
+PR_SPEC_FORCE_DISABLE = 8
+PR_SPEC_STORE_BYPASS = 0
+PR_SVE_GET_VL = 51
+PR_SVE_SET_VL = 50
+PR_SVE_SET_VL_ONEXEC = 262144
+PR_SVE_VL_INHERIT = 131072
+PR_TASK_PERF_EVENTS_DISABLE = 31
+PR_TASK_PERF_EVENTS_ENABLE = 32
+PR_TSC_ENABLE = 1
+PR_TSC_SIGSEGV = 2
+PR_UNALIGN_NOPRINT = 1
+PR_UNALIGN_SIGBUS = 2
+SECBIT_KEEP_CAPS = 16
+SECBIT_KEEP_CAPS_LOCKED = 32
+SECBIT_NOROOT = 1
+SECBIT_NOROOT_LOCKED = 2
+SECBIT_NO_SETUID_FIXUP = 4
+SECBIT_NO_SETUID_FIXUP_LOCKED = 8
+SECCOMP_MODE_DISABLED = 0
+SECCOMP_MODE_FILTER = 2
+SECCOMP_MODE_STRICT = 1
+SUID_DUMP_ROOT = 2
+SUID_DUMP_USER = 1
+# __NR_arch_prctl is not set
+__NR_prctl = 172