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sys/unix/types_linux.go
Michael Munday 33267e036f unix: add s390x support 
This commit adds linux/s390x support to the unix package. It is
based on the changes made to the syscall package in
https://golang.org/cl/20961/. It also adds mkpost.go which is
used to cleanup the API generated by cgo -godefs.

The biggest departure that is made with the syscall package is
the use of the -fsigned-char flag to force signed chars. We
couldn't do this in the syscall package because of the need to
maintain compatibility with the gccgo implementation of the syscall
package (gccgo has supported s390x for a longer time than the Go
toolchain). The unix package does not have this constraint.

Using the -fsigned-char flag makes the API look more like the one
generated on amd64 and arm64 and also more consistent with itself
(the syscall package represents chars using both int8 and uint8
types, the sys package will only ever use int8). Unfortunately it
also means that applications transitioning from the syscall package
to the unix package will see a different API on s390x which might
be confusing. I think the tradeoff is worth it though.

Change-Id: I40b90c18ed787e74ba7a2ebd004bd6bd1ba6279a
Reviewed-on: https://go-review.googlesource.com/23045
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-05-13 18:30:25 +00:00

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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
/*
Input to cgo -godefs. See also mkerrors.sh and mkall.sh
*/
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package unix
/*
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#define _FILE_OFFSET_BITS 64
#define _GNU_SOURCE
#include <dirent.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netpacket/packet.h>
#include <signal.h>
#include <stdio.h>
#include <sys/epoll.h>
#include <sys/inotify.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/param.h>
#include <sys/ptrace.h>
#include <sys/resource.h>
#include <sys/select.h>
#include <sys/signal.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/sysinfo.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <sys/un.h>
#include <sys/user.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <linux/filter.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/icmpv6.h>
#include <asm/termbits.h>
#include <time.h>
#include <unistd.h>
#include <ustat.h>
#include <utime.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#ifdef TCSETS2
// On systems that have "struct termios2" use this as type Termios.
typedef struct termios2 termios_t;
#else
typedef struct termios termios_t;
#endif
enum {
sizeofPtr = sizeof(void*),
};
union sockaddr_all {
struct sockaddr s1; // this one gets used for fields
struct sockaddr_in s2; // these pad it out
struct sockaddr_in6 s3;
struct sockaddr_un s4;
struct sockaddr_ll s5;
struct sockaddr_nl s6;
};
struct sockaddr_any {
struct sockaddr addr;
char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
};
// copied from /usr/include/linux/un.h
struct my_sockaddr_un {
sa_family_t sun_family;
#if defined(__ARM_EABI__) || defined(__powerpc64__)
// on ARM char is by default unsigned
signed char sun_path[108];
#else
char sun_path[108];
#endif
};
#ifdef __ARM_EABI__
typedef struct user_regs PtraceRegs;
#elif defined(__aarch64__)
typedef struct user_pt_regs PtraceRegs;
#elif defined(__powerpc64__)
typedef struct pt_regs PtraceRegs;
#elif defined(__mips__)
typedef struct user PtraceRegs;
#elif defined(__s390x__)
typedef struct _user_regs_struct PtraceRegs;
#else
typedef struct user_regs_struct PtraceRegs;
#endif
#if defined(__s390x__)
typedef struct _user_psw_struct ptracePsw;
typedef struct _user_fpregs_struct ptraceFpregs;
typedef struct _user_per_struct ptracePer;
#else
typedef struct {} ptracePsw;
typedef struct {} ptraceFpregs;
typedef struct {} ptracePer;
#endif
// The real epoll_event is a union, and godefs doesn't handle it well.
struct my_epoll_event {
uint32_t events;
#if defined(__ARM_EABI__) || defined(__aarch64__)
// padding is not specified in linux/eventpoll.h but added to conform to the
// alignment requirements of EABI
int32_t padFd;
#elif defined(__powerpc64__) || defined(__s390x__)
int32_t _padFd;
#endif
int32_t fd;
int32_t pad;
};
*/
import "C"
// Machine characteristics; for internal use.
const (
sizeofPtr = C.sizeofPtr
sizeofShort = C.sizeof_short
sizeofInt = C.sizeof_int
sizeofLong = C.sizeof_long
sizeofLongLong = C.sizeof_longlong
PathMax = C.PATH_MAX
)
// Basic types
type (
_C_short C.short
_C_int C.int
_C_long C.long
_C_long_long C.longlong
)
// Time
type Timespec C.struct_timespec
type Timeval C.struct_timeval
type Timex C.struct_timex
type Time_t C.time_t
type Tms C.struct_tms
type Utimbuf C.struct_utimbuf
// Processes
type Rusage C.struct_rusage
type Rlimit C.struct_rlimit
type _Gid_t C.gid_t
// Files
type Stat_t C.struct_stat
type Statfs_t C.struct_statfs
type Dirent C.struct_dirent
type Fsid C.fsid_t
type Flock_t C.struct_flock
// Advice to Fadvise
const (
FADV_NORMAL = C.POSIX_FADV_NORMAL
FADV_RANDOM = C.POSIX_FADV_RANDOM
FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
FADV_WILLNEED = C.POSIX_FADV_WILLNEED
FADV_DONTNEED = C.POSIX_FADV_DONTNEED
FADV_NOREUSE = C.POSIX_FADV_NOREUSE
)
// Sockets
type RawSockaddrInet4 C.struct_sockaddr_in
type RawSockaddrInet6 C.struct_sockaddr_in6
type RawSockaddrUnix C.struct_my_sockaddr_un
type RawSockaddrLinklayer C.struct_sockaddr_ll
type RawSockaddrNetlink C.struct_sockaddr_nl
type RawSockaddrHCI C.struct_sockaddr_hci
type RawSockaddr C.struct_sockaddr
type RawSockaddrAny C.struct_sockaddr_any
type _Socklen C.socklen_t
type Linger C.struct_linger
type Iovec C.struct_iovec
type IPMreq C.struct_ip_mreq
type IPMreqn C.struct_ip_mreqn
type IPv6Mreq C.struct_ipv6_mreq
type Msghdr C.struct_msghdr
type Cmsghdr C.struct_cmsghdr
type Inet4Pktinfo C.struct_in_pktinfo
type Inet6Pktinfo C.struct_in6_pktinfo
type IPv6MTUInfo C.struct_ip6_mtuinfo
type ICMPv6Filter C.struct_icmp6_filter
type Ucred C.struct_ucred
type TCPInfo C.struct_tcp_info
const (
SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in
SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
SizeofSockaddrAny = C.sizeof_struct_sockaddr_any
SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un
SizeofSockaddrLinklayer = C.sizeof_struct_sockaddr_ll
SizeofSockaddrNetlink = C.sizeof_struct_sockaddr_nl
SizeofSockaddrHCI = C.sizeof_struct_sockaddr_hci
SizeofLinger = C.sizeof_struct_linger
SizeofIPMreq = C.sizeof_struct_ip_mreq
SizeofIPMreqn = C.sizeof_struct_ip_mreqn
SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq
SizeofMsghdr = C.sizeof_struct_msghdr
SizeofCmsghdr = C.sizeof_struct_cmsghdr
SizeofInet4Pktinfo = C.sizeof_struct_in_pktinfo
SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo
SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo
SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
SizeofUcred = C.sizeof_struct_ucred
SizeofTCPInfo = C.sizeof_struct_tcp_info
)
// Netlink routing and interface messages
const (
IFA_UNSPEC = C.IFA_UNSPEC
IFA_ADDRESS = C.IFA_ADDRESS
IFA_LOCAL = C.IFA_LOCAL
IFA_LABEL = C.IFA_LABEL
IFA_BROADCAST = C.IFA_BROADCAST
IFA_ANYCAST = C.IFA_ANYCAST
IFA_CACHEINFO = C.IFA_CACHEINFO
IFA_MULTICAST = C.IFA_MULTICAST
IFLA_UNSPEC = C.IFLA_UNSPEC
IFLA_ADDRESS = C.IFLA_ADDRESS
IFLA_BROADCAST = C.IFLA_BROADCAST
IFLA_IFNAME = C.IFLA_IFNAME
IFLA_MTU = C.IFLA_MTU
IFLA_LINK = C.IFLA_LINK
IFLA_QDISC = C.IFLA_QDISC
IFLA_STATS = C.IFLA_STATS
IFLA_COST = C.IFLA_COST
IFLA_PRIORITY = C.IFLA_PRIORITY
IFLA_MASTER = C.IFLA_MASTER
IFLA_WIRELESS = C.IFLA_WIRELESS
IFLA_PROTINFO = C.IFLA_PROTINFO
IFLA_TXQLEN = C.IFLA_TXQLEN
IFLA_MAP = C.IFLA_MAP
IFLA_WEIGHT = C.IFLA_WEIGHT
IFLA_OPERSTATE = C.IFLA_OPERSTATE
IFLA_LINKMODE = C.IFLA_LINKMODE
IFLA_LINKINFO = C.IFLA_LINKINFO
IFLA_NET_NS_PID = C.IFLA_NET_NS_PID
IFLA_IFALIAS = C.IFLA_IFALIAS
IFLA_MAX = C.IFLA_MAX
RT_SCOPE_UNIVERSE = C.RT_SCOPE_UNIVERSE
RT_SCOPE_SITE = C.RT_SCOPE_SITE
RT_SCOPE_LINK = C.RT_SCOPE_LINK
RT_SCOPE_HOST = C.RT_SCOPE_HOST
RT_SCOPE_NOWHERE = C.RT_SCOPE_NOWHERE
RT_TABLE_UNSPEC = C.RT_TABLE_UNSPEC
RT_TABLE_COMPAT = C.RT_TABLE_COMPAT
RT_TABLE_DEFAULT = C.RT_TABLE_DEFAULT
RT_TABLE_MAIN = C.RT_TABLE_MAIN
RT_TABLE_LOCAL = C.RT_TABLE_LOCAL
RT_TABLE_MAX = C.RT_TABLE_MAX
RTA_UNSPEC = C.RTA_UNSPEC
RTA_DST = C.RTA_DST
RTA_SRC = C.RTA_SRC
RTA_IIF = C.RTA_IIF
RTA_OIF = C.RTA_OIF
RTA_GATEWAY = C.RTA_GATEWAY
RTA_PRIORITY = C.RTA_PRIORITY
RTA_PREFSRC = C.RTA_PREFSRC
RTA_METRICS = C.RTA_METRICS
RTA_MULTIPATH = C.RTA_MULTIPATH
RTA_FLOW = C.RTA_FLOW
RTA_CACHEINFO = C.RTA_CACHEINFO
RTA_TABLE = C.RTA_TABLE
RTN_UNSPEC = C.RTN_UNSPEC
RTN_UNICAST = C.RTN_UNICAST
RTN_LOCAL = C.RTN_LOCAL
RTN_BROADCAST = C.RTN_BROADCAST
RTN_ANYCAST = C.RTN_ANYCAST
RTN_MULTICAST = C.RTN_MULTICAST
RTN_BLACKHOLE = C.RTN_BLACKHOLE
RTN_UNREACHABLE = C.RTN_UNREACHABLE
RTN_PROHIBIT = C.RTN_PROHIBIT
RTN_THROW = C.RTN_THROW
RTN_NAT = C.RTN_NAT
RTN_XRESOLVE = C.RTN_XRESOLVE
RTNLGRP_NONE = C.RTNLGRP_NONE
RTNLGRP_LINK = C.RTNLGRP_LINK
RTNLGRP_NOTIFY = C.RTNLGRP_NOTIFY
RTNLGRP_NEIGH = C.RTNLGRP_NEIGH
RTNLGRP_TC = C.RTNLGRP_TC
RTNLGRP_IPV4_IFADDR = C.RTNLGRP_IPV4_IFADDR
RTNLGRP_IPV4_MROUTE = C.RTNLGRP_IPV4_MROUTE
RTNLGRP_IPV4_ROUTE = C.RTNLGRP_IPV4_ROUTE
RTNLGRP_IPV4_RULE = C.RTNLGRP_IPV4_RULE
RTNLGRP_IPV6_IFADDR = C.RTNLGRP_IPV6_IFADDR
RTNLGRP_IPV6_MROUTE = C.RTNLGRP_IPV6_MROUTE
RTNLGRP_IPV6_ROUTE = C.RTNLGRP_IPV6_ROUTE
RTNLGRP_IPV6_IFINFO = C.RTNLGRP_IPV6_IFINFO
RTNLGRP_IPV6_PREFIX = C.RTNLGRP_IPV6_PREFIX
RTNLGRP_IPV6_RULE = C.RTNLGRP_IPV6_RULE
RTNLGRP_ND_USEROPT = C.RTNLGRP_ND_USEROPT
SizeofNlMsghdr = C.sizeof_struct_nlmsghdr
SizeofNlMsgerr = C.sizeof_struct_nlmsgerr
SizeofRtGenmsg = C.sizeof_struct_rtgenmsg
SizeofNlAttr = C.sizeof_struct_nlattr
SizeofRtAttr = C.sizeof_struct_rtattr
SizeofIfInfomsg = C.sizeof_struct_ifinfomsg
SizeofIfAddrmsg = C.sizeof_struct_ifaddrmsg
SizeofRtMsg = C.sizeof_struct_rtmsg
SizeofRtNexthop = C.sizeof_struct_rtnexthop
)
type NlMsghdr C.struct_nlmsghdr
type NlMsgerr C.struct_nlmsgerr
type RtGenmsg C.struct_rtgenmsg
type NlAttr C.struct_nlattr
type RtAttr C.struct_rtattr
type IfInfomsg C.struct_ifinfomsg
type IfAddrmsg C.struct_ifaddrmsg
type RtMsg C.struct_rtmsg
type RtNexthop C.struct_rtnexthop
// Linux socket filter
const (
SizeofSockFilter = C.sizeof_struct_sock_filter
SizeofSockFprog = C.sizeof_struct_sock_fprog
)
type SockFilter C.struct_sock_filter
type SockFprog C.struct_sock_fprog
// Inotify
type InotifyEvent C.struct_inotify_event
const SizeofInotifyEvent = C.sizeof_struct_inotify_event
// Ptrace
// Register structures
type PtraceRegs C.PtraceRegs
// Structures contained in PtraceRegs on s390x (exported by mkpost.go)
type ptracePsw C.ptracePsw
type ptraceFpregs C.ptraceFpregs
type ptracePer C.ptracePer
// Misc
type FdSet C.fd_set
type Sysinfo_t C.struct_sysinfo
type Utsname C.struct_utsname
type Ustat_t C.struct_ustat
type EpollEvent C.struct_my_epoll_event
const (
AT_FDCWD = C.AT_FDCWD
AT_REMOVEDIR = C.AT_REMOVEDIR
AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW
AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
)
// Terminal handling
type Termios C.termios_t
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