|  | // Copyright 2016 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. | 
|  |  | 
|  | //go:build (mips || mipsle) && linux | 
|  |  | 
|  | package runtime | 
|  |  | 
|  | import "unsafe" | 
|  |  | 
|  | const ( | 
|  | _EINTR  = 0x4 | 
|  | _EAGAIN = 0xb | 
|  | _ENOMEM = 0xc | 
|  |  | 
|  | _PROT_NONE  = 0x0 | 
|  | _PROT_READ  = 0x1 | 
|  | _PROT_WRITE = 0x2 | 
|  | _PROT_EXEC  = 0x4 | 
|  |  | 
|  | _MAP_ANON    = 0x800 | 
|  | _MAP_PRIVATE = 0x2 | 
|  | _MAP_FIXED   = 0x10 | 
|  |  | 
|  | _MADV_DONTNEED   = 0x4 | 
|  | _MADV_FREE       = 0x8 | 
|  | _MADV_HUGEPAGE   = 0xe | 
|  | _MADV_NOHUGEPAGE = 0xf | 
|  |  | 
|  | _SA_RESTART = 0x10000000 | 
|  | _SA_ONSTACK = 0x8000000 | 
|  | _SA_SIGINFO = 0x8 | 
|  |  | 
|  | _SI_KERNEL = 0x80 | 
|  | _SI_TIMER  = -0x2 | 
|  |  | 
|  | _SIGHUP    = 0x1 | 
|  | _SIGINT    = 0x2 | 
|  | _SIGQUIT   = 0x3 | 
|  | _SIGILL    = 0x4 | 
|  | _SIGTRAP   = 0x5 | 
|  | _SIGABRT   = 0x6 | 
|  | _SIGEMT    = 0x7 | 
|  | _SIGFPE    = 0x8 | 
|  | _SIGKILL   = 0x9 | 
|  | _SIGBUS    = 0xa | 
|  | _SIGSEGV   = 0xb | 
|  | _SIGSYS    = 0xc | 
|  | _SIGPIPE   = 0xd | 
|  | _SIGALRM   = 0xe | 
|  | _SIGUSR1   = 0x10 | 
|  | _SIGUSR2   = 0x11 | 
|  | _SIGCHLD   = 0x12 | 
|  | _SIGPWR    = 0x13 | 
|  | _SIGWINCH  = 0x14 | 
|  | _SIGURG    = 0x15 | 
|  | _SIGIO     = 0x16 | 
|  | _SIGSTOP   = 0x17 | 
|  | _SIGTSTP   = 0x18 | 
|  | _SIGCONT   = 0x19 | 
|  | _SIGTTIN   = 0x1a | 
|  | _SIGTTOU   = 0x1b | 
|  | _SIGVTALRM = 0x1c | 
|  | _SIGPROF   = 0x1d | 
|  | _SIGXCPU   = 0x1e | 
|  | _SIGXFSZ   = 0x1f | 
|  |  | 
|  | _SIGRTMIN = 0x20 | 
|  |  | 
|  | _FPE_INTDIV = 0x1 | 
|  | _FPE_INTOVF = 0x2 | 
|  | _FPE_FLTDIV = 0x3 | 
|  | _FPE_FLTOVF = 0x4 | 
|  | _FPE_FLTUND = 0x5 | 
|  | _FPE_FLTRES = 0x6 | 
|  | _FPE_FLTINV = 0x7 | 
|  | _FPE_FLTSUB = 0x8 | 
|  |  | 
|  | _BUS_ADRALN = 0x1 | 
|  | _BUS_ADRERR = 0x2 | 
|  | _BUS_OBJERR = 0x3 | 
|  |  | 
|  | _SEGV_MAPERR = 0x1 | 
|  | _SEGV_ACCERR = 0x2 | 
|  |  | 
|  | _ITIMER_REAL    = 0x0 | 
|  | _ITIMER_VIRTUAL = 0x1 | 
|  | _ITIMER_PROF    = 0x2 | 
|  |  | 
|  | _CLOCK_THREAD_CPUTIME_ID = 0x3 | 
|  |  | 
|  | _SIGEV_THREAD_ID = 0x4 | 
|  | ) | 
|  |  | 
|  | type timespec struct { | 
|  | tv_sec  int32 | 
|  | tv_nsec int32 | 
|  | } | 
|  |  | 
|  | //go:nosplit | 
|  | func (ts *timespec) setNsec(ns int64) { | 
|  | ts.tv_sec = timediv(ns, 1e9, &ts.tv_nsec) | 
|  | } | 
|  |  | 
|  | type timeval struct { | 
|  | tv_sec  int32 | 
|  | tv_usec int32 | 
|  | } | 
|  |  | 
|  | //go:nosplit | 
|  | func (tv *timeval) set_usec(x int32) { | 
|  | tv.tv_usec = x | 
|  | } | 
|  |  | 
|  | type sigactiont struct { | 
|  | sa_flags   uint32 | 
|  | sa_handler uintptr | 
|  | sa_mask    [4]uint32 | 
|  | // linux header does not have sa_restorer field, | 
|  | // but it is used in setsig(). it is no harm to put it here | 
|  | sa_restorer uintptr | 
|  | } | 
|  |  | 
|  | type siginfoFields struct { | 
|  | si_signo int32 | 
|  | si_code  int32 | 
|  | si_errno int32 | 
|  | // below here is a union; si_addr is the only field we use | 
|  | si_addr uint32 | 
|  | } | 
|  |  | 
|  | type siginfo struct { | 
|  | siginfoFields | 
|  |  | 
|  | // Pad struct to the max size in the kernel. | 
|  | _ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte | 
|  | } | 
|  |  | 
|  | type itimerspec struct { | 
|  | it_interval timespec | 
|  | it_value    timespec | 
|  | } | 
|  |  | 
|  | type itimerval struct { | 
|  | it_interval timeval | 
|  | it_value    timeval | 
|  | } | 
|  |  | 
|  | type sigeventFields struct { | 
|  | value  uintptr | 
|  | signo  int32 | 
|  | notify int32 | 
|  | // below here is a union; sigev_notify_thread_id is the only field we use | 
|  | sigev_notify_thread_id int32 | 
|  | } | 
|  |  | 
|  | type sigevent struct { | 
|  | sigeventFields | 
|  |  | 
|  | // Pad struct to the max size in the kernel. | 
|  | _ [_sigev_max_size - unsafe.Sizeof(sigeventFields{})]byte | 
|  | } | 
|  |  | 
|  | const ( | 
|  | _O_RDONLY    = 0x0 | 
|  | _O_WRONLY    = 0x1 | 
|  | _O_NONBLOCK  = 0x80 | 
|  | _O_CREAT     = 0x100 | 
|  | _O_TRUNC     = 0x200 | 
|  | _O_CLOEXEC   = 0x80000 | 
|  | _SA_RESTORER = 0 | 
|  | ) | 
|  |  | 
|  | type stackt struct { | 
|  | ss_sp    *byte | 
|  | ss_size  uintptr | 
|  | ss_flags int32 | 
|  | } | 
|  |  | 
|  | type sigcontext struct { | 
|  | sc_regmask   uint32 | 
|  | sc_status    uint32 | 
|  | sc_pc        uint64 | 
|  | sc_regs      [32]uint64 | 
|  | sc_fpregs    [32]uint64 | 
|  | sc_acx       uint32 | 
|  | sc_fpc_csr   uint32 | 
|  | sc_fpc_eir   uint32 | 
|  | sc_used_math uint32 | 
|  | sc_dsp       uint32 | 
|  | sc_mdhi      uint64 | 
|  | sc_mdlo      uint64 | 
|  | sc_hi1       uint32 | 
|  | sc_lo1       uint32 | 
|  | sc_hi2       uint32 | 
|  | sc_lo2       uint32 | 
|  | sc_hi3       uint32 | 
|  | sc_lo3       uint32 | 
|  | } | 
|  |  | 
|  | type ucontext struct { | 
|  | uc_flags    uint32 | 
|  | uc_link     *ucontext | 
|  | uc_stack    stackt | 
|  | Pad_cgo_0   [4]byte | 
|  | uc_mcontext sigcontext | 
|  | uc_sigmask  [4]uint32 | 
|  | } |