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6ac6529e15
gcc/libgo/sysinfo.c
Ian Lance Taylor ab2d47a87f libgo: support gollvm build on arm64 linux 
This CL serves as part of an initial change for enabling gollvm
    building on arm64 linux, the rest of the change will be covered by
    another one to the gollvm repo.
    
    Incorporate type definition of 'uint128' to 'runtime' and 'syscall'
    packges, the change is not specific to arm64 linux but made available
    for all platforms.
    
    Verified by building and unit-testing gollvm on linux x86-64 and arm64.
    
    Verified by building and checking gccgo on linux x86-64 and arm64.
    
    Fixes golang/go#33711
    
    Change-Id: I4720c7d810cfd4ef720962fb4104c5641b2459c0

From-SVN: r275919
2019-09-19 00:03:25 +00:00

502 lines
9.8 KiB
C
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/* sysinfo.c -- input for mksysinfo.sh
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. */
/* This file is passed to GCC with the -fdump-go-spec option to
generate a Go version of the system information. */
#include "config.h"
#include <stddef.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <ucontext.h>
#include <netinet/in.h>
/* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
&& !_XOPEN_SOURCE.
<sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
<sys/ttold.h> does so unconditionally. */
#ifdef __sgi__
#include <sys/bsd_types.h>
#include <sys/ttold.h>
#endif
#include <netinet/tcp.h>
#if defined(HAVE_NETINET_IN_SYSTM_H)
#include <netinet/in_systm.h>
#endif
#if defined(HAVE_NETINET_IP_H)
#include <netinet/ip.h>
#endif
#if defined(HAVE_NETINET_IP_MROUTE_H)
#include <netinet/ip_mroute.h>
#endif
#if defined(HAVE_NETINET_IF_ETHER_H)
#include <netinet/if_ether.h>
#endif
#include <signal.h>
#include <sys/ioctl.h>
#include <termios.h>
#if defined(HAVE_SYSCALL_H)
#include <syscall.h>
#endif
#if defined(HAVE_SYS_SYSCALL_H)
#include <sys/syscall.h>
#endif
#if defined(HAVE_SYS_EPOLL_H)
#include <sys/epoll.h>
#endif
#if defined(HAVE_SYS_EVENT_H)
#include <sys/event.h>
#endif
#if defined(HAVE_SYS_FILE_H)
#include <sys/file.h>
#endif
#if defined(HAVE_SYS_MMAN_H)
#include <sys/mman.h>
#endif
#if defined(HAVE_SYS_PRCTL_H)
#include <sys/prctl.h>
#endif
#if defined(HAVE_SYS_PTRACE_H)
#include <sys/ptrace.h>
#endif
#include <sys/resource.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/wait.h>
#include <sys/un.h>
#if defined(HAVE_SYS_USER_H)
#include <sys/user.h>
#endif
#if defined(HAVE_SYS_UTSNAME_H)
#include <sys/utsname.h>
#endif
#if defined(HAVE_SYS_SELECT_H)
#include <sys/select.h>
#endif
#include <time.h>
#include <unistd.h>
#include <netdb.h>
#include <pwd.h>
#include <grp.h>
#if defined(HAVE_LINUX_FILTER_H)
#include <linux/filter.h>
#endif
#if defined(HAVE_LINUX_IF_ADDR_H)
#include <linux/if_addr.h>
#endif
#if defined(HAVE_LINUX_IF_ETHER_H)
#include <linux/if_ether.h>
#endif
#if defined(HAVE_LINUX_IF_TUN_H)
#include <linux/if_tun.h>
#endif
#if defined(HAVE_LINUX_NETLINK_H)
#include <linux/netlink.h>
#endif
#if defined(HAVE_LINUX_PTRACE_H)
/* Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762 . */
#define ia64_fpreg pt_ia64_fpreg
#define pt_all_user_regs pt_ia64_all_user_regs
/* Avoid redefinition of ptrace_peeksiginfo from <sys/ptrace.h>.
https://gcc.gnu.org/PR81324 . */
#define ptrace_peeksiginfo_args ignore_ptrace_peeksiginfo_args
#include <linux/ptrace.h>
#undef ia64_fpreg
#undef pt_all_user_regs
#undef ptrace_peeksiginfo_args
#endif
#if defined(HAVE_LINUX_RTNETLINK_H)
#include <linux/rtnetlink.h>
#endif
#if defined(HAVE_NET_IF_H)
#include <net/if.h>
#endif
#if defined(HAVE_NET_IF_ARP_H)
#include <net/if_arp.h>
#endif
#if defined(HAVE_NET_ROUTE_H)
#include <net/route.h>
#endif
#if defined (HAVE_NETPACKET_PACKET_H)
#include <netpacket/packet.h>
#endif
#if defined(HAVE_SYS_MOUNT_H)
#include <sys/mount.h>
#endif
#if defined(HAVE_SYS_VFS_H)
#include <sys/vfs.h>
#endif
#if defined(HAVE_STATFS_H)
#include <sys/statfs.h>
#endif
#if defined(HAVE_SYS_TIMEX_H)
#include <sys/timex.h>
#endif
#if defined(HAVE_SYS_SYSINFO_H)
#include <sys/sysinfo.h>
#endif
#if defined(HAVE_UTIME_H)
#include <utime.h>
#endif
#if defined(HAVE_LINUX_ETHER_H)
#include <linux/ether.h>
#endif
#if defined(HAVE_LINUX_FS_H)
#include <linux/fs.h>
#endif
#if defined(HAVE_LINUX_REBOOT_H)
#include <linux/reboot.h>
#endif
#if defined(HAVE_SYS_INOTIFY_H)
#include <sys/inotify.h>
#endif
#if defined(HAVE_NETINET_ICMP6_H)
#include <netinet/icmp6.h>
#endif
#if defined(HAVE_SCHED_H)
#include <sched.h>
#endif
#if defined(HAVE_SEMAPHORE_H)
#include <semaphore.h>
#endif
#if defined(HAVE_PORT_H)
#include <port.h>
#endif
#ifdef USE_LIBFFI
#include "ffi.h"
#endif
/* Constants that may only be defined as expressions on some systems,
expressions too complex for -fdump-go-spec to handle. These are
handled specially below. */
enum {
#ifdef TIOCGWINSZ
TIOCGWINSZ_val = TIOCGWINSZ,
#endif
#ifdef TIOCSWINSZ
TIOCSWINSZ_val = TIOCSWINSZ,
#endif
#ifdef TIOCNOTTY
TIOCNOTTY_val = TIOCNOTTY,
#endif
#ifdef TIOCSCTTY
TIOCSCTTY_val = TIOCSCTTY,
#endif
#ifdef TIOCGPGRP
TIOCGPGRP_val = TIOCGPGRP,
#endif
#ifdef TIOCSPGRP
TIOCSPGRP_val = TIOCSPGRP,
#endif
#ifdef TIOCGPTN
TIOCGPTN_val = TIOCGPTN,
#endif
#ifdef TIOCSPTLCK
TIOCSPTLCK_val = TIOCSPTLCK,
#endif
#ifdef TIOCGDEV
TIOCGDEV_val = TIOCGDEV,
#endif
#ifdef TIOCSIG
TIOCSIG_val = TIOCSIG,
#endif
#ifdef TCGETS
TCGETS_val = TCGETS,
#endif
#ifdef TCSETS
TCSETS_val = TCSETS,
#endif
#ifdef TUNSETIFF
TUNSETIFF_val = TUNSETIFF,
#endif
#ifdef TUNSETNOCSUM
TUNSETNOCSUM_val = TUNSETNOCSUM,
#endif
#ifdef TUNSETDEBUG
TUNSETDEBUG_val = TUNSETDEBUG,
#endif
#ifdef TUNSETPERSIST
TUNSETPERSIST_val = TUNSETPERSIST,
#endif
#ifdef TUNSETOWNER
TUNSETOWNER_val = TUNSETOWNER,
#endif
#ifdef TUNSETLINK
TUNSETLINK_val = TUNSETLINK,
#endif
#ifdef TUNSETGROUP
TUNSETGROUP_val = TUNSETGROUP,
#endif
#ifdef TUNGETFEATURES
TUNGETFEATURES_val = TUNGETFEATURES,
#endif
#ifdef TUNSETOFFLOAD
TUNSETOFFLOAD_val = TUNSETOFFLOAD,
#endif
#ifdef TUNSETTXFILTER
TUNSETTXFILTER_val = TUNSETTXFILTER,
#endif
#ifdef TUNGETIFF
TUNGETIFF_val = TUNGETIFF,
#endif
#ifdef TUNGETSNDBUF
TUNGETSNDBUF_val = TUNGETSNDBUF,
#endif
#ifdef TUNSETSNDBUF
TUNSETSNDBUF_val = TUNSETSNDBUF,
#endif
#ifdef TUNATTACHFILTER
TUNATTACHFILTER_val = TUNATTACHFILTER,
#endif
#ifdef TUNDETACHFILTER
TUNDETACHFILTER_val = TUNDETACHFILTER,
#endif
#ifdef TUNGETVNETHDRSZ
TUNGETVNETHDRSZ_val = TUNGETVNETHDRSZ,
#endif
#ifdef TUNSETVNETHDRSZ
TUNSETVNETHDRSZ_val = TUNSETVNETHDRSZ,
#endif
#ifdef TUNSETQUEUE
TUNSETQUEUE_val = TUNSETQUEUE,
#endif
#ifdef TUNSETIFINDEX
TUNSETIFINDEX_val = TUNSETIFINDEX,
#endif
#ifdef TUNGETFILTER
TUNGETFILTER_val = TUNGETFILTER,
#endif
#ifdef NLA_HDRLEN
NLA_HDRLEN_val = NLA_HDRLEN,
#endif
};
#if defined(HAVE_SYS_EPOLL_H)
enum {
epoll_data_offset = offsetof(struct epoll_event, data)
};
#endif
// The following section introduces explicit references to types and
// constants of interest to support bootstrapping libgo using a
// compiler that doesn't support -fdump-go-spec (e.g., clang), via
// DWARF-based tools. This process is made more difficult due to the
// fact that clang tries hard to omit types/constants from DWARF if it
// can't find explicit references to them, so here we make sure that
// key items are mentioned in ways that will force them into the
// generated DWARF.
#if defined(__clang__)
// Make a reference to a type
#define TREF(typ) typ typ ## ref
// Make a reference to an opaque type
#define OTREF(typ) typ *typ ## ref
// Make a reference to a struct tag
#define SREF(stag) struct stag stag ## ref
// Make a reference to an enum literal
#define EREF(elit) unsigned elit ## fn(unsigned x) { return x == elit ? 1 : 0; }
//......................................................................
// From dirent.h
SREF(dirent);
SREF(dirent64);
OTREF(DIR);
// From fcntl.h
SREF(flock);
SREF(flock64);
// From ffi headers
SREF(_ffi_type);
TREF(ffi_cif);
TREF(ffi_abi);
TREF(ffi_status);
EREF(FFI_OK);
// From grp.h
SREF(group);
#if defined(HAVE_LINUX_FILTER_H)
// From linux/filter.h
SREF(sock_filter);
SREF(sock_fprog);
#endif
// From linux/if.h
EREF(IFF_UP);
#if defined(HAVE_LINUX_IF_ADDR_H)
// From linux/if_addr.h
SREF(ifaddrmsg);
EREF(IFA_ADDRESS);
#endif
#if defined(HAVE_LINUX_RTNETLINK_H)
// From linux/if_link.h
EREF(IFLA_ADDRESS);
#endif
// From in.h, in6.h, icmp6.h
SREF(ip_mreq);
SREF(ip_mreqn);
SREF(ipv6_mreq);
SREF(ip6_mtuinfo);
SREF(icmp6_filter);
SREF(in_pktinfo);
EREF(IPPROTO_TCP);
#if defined(HAVE_LINUX_RTNETLINK_H)
// From linux/rtnetlink.h
SREF(rtgenmsg);
SREF(rtmsg);
SREF(ifinfomsg);
SREF(rtattr);
SREF(rtnexthop);
EREF(RTM_BASE);
EREF(RTN_UNSPEC);
#endif
// From netdb.h
SREF(addrinfo);
// From netlink.h
SREF(nlattr);
SREF(nlmsgerr);
// From pthread.h and related
TREF(pthread_attr_t);
TREF(pthread_t);
TREF(pthread_mutex_t);
TREF(pthread_mutexattr_t);
// From pwd.h
SREF(passwd);
// From signal.h and related
TREF(sigset_t);
TREF(siginfo_t);
TREF(stack_t);
SREF(sigaction);
SREF(sigstack);
EREF(SI_USER);
EREF(FPE_INTOVF);
EREF(BUS_ADRALN);
EREF(SS_ONSTACK);
EREF(SEGV_MAPERR);
// From stat.h
SREF(stat64);
// From statfs.h
SREF(statfs);
SREF(statfs64);
// From sysinfo.h
SREF(sysinfo);
// From <sys/epoll.h>
#if defined(HAVE_SYS_EPOLL_H)
SREF(epoll_event);
EREF(EPOLLIN);
EREF(epoll_data_offset);
#endif
#if defined(HAVE_SYS_MOUNT_H)
// From sys/mount.h
EREF(MS_PRIVATE);
EREF(MNT_FORCE);
#endif
#if defined(HAVE_SYS_PTRACE_H)
// From <sys/ptrace.h>
#if defined (__aarch64__)
SREF(user_pt_regs);
#else
SREF(pt_regs);
#endif
EREF(PTRACE_PEEKTEXT);
#endif
// From sys/resource.h
SREF(rusage);
SREF(rlimit64);
EREF(RLIMIT_NOFILE);
EREF(PRIO_USER);
// From sys/select.h
TREF(fd_set);
// From sys/socket.h
SREF(msghdr);
SREF(cmsghdr);
SREF(ucred);
EREF(MSG_OOB);
EREF(SCM_RIGHTS);
EREF(SOCK_RAW);
EREF(SHUT_RD);
// From sys/time.h and sys/times.h
SREF(timespec);
SREF(timeval);
SREF(itimerval);
SREF(tms);
EREF(ITIMER_PROF);
#if defined(HAVE_SYS_TIMEX_H)
// From sys/timex.h
SREF(timex);
#endif
// From sys/types.h
TREF(pid_t);
TREF(off_t);
TREF(loff_t);
TREF(size_t);
TREF(ssize_t);
TREF(mode_t);
TREF(dev_t);
TREF(time_t);
// From sys/ucontext.h
TREF(ucontext_t);
#if defined(HAVE_SYS_USER_H)
// From sys/user.h
SREF(user_regs_struct);
#endif
#if defined(HAVE_SYS_UTSNAME_H)
// From sys/utsname.h
SREF(utsname);
#endif
// From termios.h
SREF(termios);
// From uio.h
SREF(iovec);
// From utime.h
SREF(utimbuf);
// From unistd.h
EREF(_PC_NAME_MAX);
EREF(_SC_GETPW_R_SIZE_MAX);
#endif // clang
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