From a36dda7880179c09361cd7ec26f11dbb73dc2b78 Mon Sep 17 00:00:00 2001 From: Yao Zhang Date: Thu, 10 Sep 2015 11:21:57 -0400 Subject: [PATCH] runtime: added go files for linux/mips64{,le} support Change-Id: I14b537922b97d4bce9e0523d98a822da906348f1 Reviewed-on: https://go-review.googlesource.com/14447 Reviewed-by: Minux Ma --- src/runtime/defs_linux_mips64x.go | 183 +++++++++++++++++++++++++++ src/runtime/lfstack_linux_mips64x.go | 32 +++++ src/runtime/os_linux_mips64x.go | 18 +++ src/runtime/signal_linux_mips64x.go | 67 ++++++++++ src/runtime/signal_mips64x.go | 180 ++++++++++++++++++++++++++ 5 files changed, 480 insertions(+) create mode 100644 src/runtime/defs_linux_mips64x.go create mode 100644 src/runtime/lfstack_linux_mips64x.go create mode 100644 src/runtime/os_linux_mips64x.go create mode 100644 src/runtime/signal_linux_mips64x.go create mode 100644 src/runtime/signal_mips64x.go diff --git a/src/runtime/defs_linux_mips64x.go b/src/runtime/defs_linux_mips64x.go new file mode 100644 index 0000000000..bb3cd9801e --- /dev/null +++ b/src/runtime/defs_linux_mips64x.go @@ -0,0 +1,183 @@ +// +build mips64 mips64le +// +build linux + +package runtime + +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_HUGEPAGE = 0xe + _MADV_NOHUGEPAGE = 0xf + + _SA_RESTART = 0x10000000 + _SA_ONSTACK = 0x8000000 + _SA_SIGINFO = 0x8 + + _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 + + _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 + + _EPOLLIN = 0x1 + _EPOLLOUT = 0x4 + _EPOLLERR = 0x8 + _EPOLLHUP = 0x10 + _EPOLLRDHUP = 0x2000 + _EPOLLET = 0x80000000 + _EPOLL_CLOEXEC = 0x80000 + _EPOLL_CTL_ADD = 0x1 + _EPOLL_CTL_DEL = 0x2 + _EPOLL_CTL_MOD = 0x3 +) + +//struct Sigset { +// uint64 sig[1]; +//}; +//typedef uint64 Sigset; + +type timespec struct { + tv_sec int64 + tv_nsec int64 +} + +func (ts *timespec) set_sec(x int64) { + ts.tv_sec = x +} + +func (ts *timespec) set_nsec(x int32) { + ts.tv_nsec = int64(x) +} + +type timeval struct { + tv_sec int64 + tv_usec int64 +} + +func (tv *timeval) set_usec(x int32) { + tv.tv_usec = int64(x) +} + +type sigactiont struct { + sa_flags uint32 + sa_handler uintptr + sa_mask [2]uint64 + // 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 siginfo struct { + si_signo int32 + si_code int32 + si_errno int32 + __pad0 [1]int32 + // below here is a union; si_addr is the only field we use + si_addr uint64 +} + +type itimerval struct { + it_interval timeval + it_value timeval +} + +type epollevent struct { + events uint32 + pad_cgo_0 [4]byte + data [8]byte // unaligned uintptr +} + +const ( + _O_RDONLY = 0x0 + _O_CLOEXEC = 0x80000 + _SA_RESTORER = 0 +) + +type sigaltstackt struct { + ss_sp *byte + ss_size uintptr + ss_flags int32 +} + +type sigcontext struct { + sc_regs [32]uint64 + sc_fpregs [32]uint64 + sc_mdhi uint64 + sc_hi1 uint64 + sc_hi2 uint64 + sc_hi3 uint64 + sc_mdlo uint64 + sc_lo1 uint64 + sc_lo2 uint64 + sc_lo3 uint64 + sc_pc uint64 + sc_fpc_csr uint32 + sc_used_math uint32 + sc_dsp uint32 + sc_reserved uint32 +} + +type ucontext struct { + uc_flags uint64 + uc_link *ucontext + uc_stack sigaltstackt + uc_mcontext sigcontext + uc_sigmask uint64 +} diff --git a/src/runtime/lfstack_linux_mips64x.go b/src/runtime/lfstack_linux_mips64x.go new file mode 100644 index 0000000000..49b65585f4 --- /dev/null +++ b/src/runtime/lfstack_linux_mips64x.go @@ -0,0 +1,32 @@ +// Copyright 2015 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 mips64 mips64le +// +build linux + +package runtime + +import "unsafe" + +// On mips64, Linux limits the user address space to 40 bits (see +// TASK_SIZE64 in the Linux kernel). This has grown over time, +// so here we allow 48 bit addresses. +// +// In addition to the 16 bits taken from the top, we can take 3 from the +// bottom, because node must be pointer-aligned, giving a total of 19 bits +// of count. +const ( + addrBits = 48 + cntBits = 64 - addrBits + 3 +) + +func lfstackPack(node *lfnode, cnt uintptr) uint64 { + return uint64(uintptr(unsafe.Pointer(node)))<<(64-addrBits) | uint64(cnt&(1<> cntBits << 3))) + cnt = uintptr(val & (1< 0 && gp == _g_.m.g0 { + print("signal arrived during cgo execution\n") + gp = _g_.m.lockedg + } + print("\n") + + level, _, docrash := gotraceback() + if level > 0 { + goroutineheader(gp) + tracebacktrap(uintptr(c.pc()), uintptr(c.sp()), uintptr(c.link()), gp) + if crashing > 0 && gp != _g_.m.curg && _g_.m.curg != nil && readgstatus(_g_.m.curg)&^_Gscan == _Grunning { + // tracebackothers on original m skipped this one; trace it now. + goroutineheader(_g_.m.curg) + traceback(^uintptr(0), ^uintptr(0), 0, gp) + } else if crashing == 0 { + tracebackothers(gp) + print("\n") + } + dumpregs(c) + } + + if docrash { + crashing++ + if crashing < sched.mcount { + // There are other m's that need to dump their stacks. + // Relay SIGQUIT to the next m by sending it to the current process. + // All m's that have already received SIGQUIT have signal masks blocking + // receipt of any signals, so the SIGQUIT will go to an m that hasn't seen it yet. + // When the last m receives the SIGQUIT, it will fall through to the call to + // crash below. Just in case the relaying gets botched, each m involved in + // the relay sleeps for 5 seconds and then does the crash/exit itself. + // In expected operation, the last m has received the SIGQUIT and run + // crash/exit and the process is gone, all long before any of the + // 5-second sleeps have finished. + print("\n-----\n\n") + raiseproc(_SIGQUIT) + usleep(5 * 1000 * 1000) + } + crash() + } + + exit(2) +} -- 2.48.1