| // Copyright 2018 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. |
| |
| package runtime |
| |
| import ( |
| "internal/abi" |
| "internal/runtime/atomic" |
| "unsafe" |
| ) |
| |
| // The X versions of syscall expect the libc call to return a 64-bit result. |
| // Otherwise (the non-X version) expects a 32-bit result. |
| // This distinction is required because an error is indicated by returning -1, |
| // and we need to know whether to check 32 or 64 bits of the result. |
| // (Some libc functions that return 32 bits put junk in the upper 32 bits of AX.) |
| |
| // golang.org/x/sys linknames syscall_syscall |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| //go:linkname syscall_syscall syscall.syscall |
| //go:nosplit |
| func syscall_syscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, r1, r2, err uintptr }{fn, a1, a2, a3, r1, r2, err} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1, args.r2, args.err |
| } |
| func syscall() |
| |
| //go:linkname syscall_syscallX syscall.syscallX |
| //go:nosplit |
| func syscall_syscallX(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, r1, r2, err uintptr }{fn, a1, a2, a3, r1, r2, err} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscallX)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1, args.r2, args.err |
| } |
| func syscallX() |
| |
| // golang.org/x/sys linknames syscall.syscall6 |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| // syscall.syscall6 is meant for package syscall (and x/sys), |
| // but widely used packages access it using linkname. |
| // Notable members of the hall of shame include: |
| // - github.com/tetratelabs/wazero |
| // |
| // See go.dev/issue/67401. |
| // |
| //go:linkname syscall_syscall6 syscall.syscall6 |
| //go:nosplit |
| func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, a4, a5, a6, r1, r2, err uintptr }{fn, a1, a2, a3, a4, a5, a6, r1, r2, err} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1, args.r2, args.err |
| } |
| func syscall6() |
| |
| // golang.org/x/sys linknames syscall.syscall9 |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| //go:linkname syscall_syscall9 syscall.syscall9 |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func syscall_syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr) { |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall9)), unsafe.Pointer(&fn)) |
| exitsyscall() |
| return |
| } |
| func syscall9() |
| |
| //go:linkname syscall_syscall6X syscall.syscall6X |
| //go:nosplit |
| func syscall_syscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, a4, a5, a6, r1, r2, err uintptr }{fn, a1, a2, a3, a4, a5, a6, r1, r2, err} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6X)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1, args.r2, args.err |
| } |
| func syscall6X() |
| |
| // golang.org/x/sys linknames syscall.syscallPtr |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| //go:linkname syscall_syscallPtr syscall.syscallPtr |
| //go:nosplit |
| func syscall_syscallPtr(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, r1, r2, err uintptr }{fn, a1, a2, a3, r1, r2, err} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscallPtr)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1, args.r2, args.err |
| } |
| func syscallPtr() |
| |
| // golang.org/x/sys linknames syscall_rawSyscall |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| //go:linkname syscall_rawSyscall syscall.rawSyscall |
| //go:nosplit |
| func syscall_rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, r1, r2, err uintptr }{fn, a1, a2, a3, r1, r2, err} |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall)), unsafe.Pointer(&args)) |
| return args.r1, args.r2, args.err |
| } |
| |
| // golang.org/x/sys linknames syscall_rawSyscall6 |
| // (in addition to standard package syscall). |
| // Do not remove or change the type signature. |
| // |
| //go:linkname syscall_rawSyscall6 syscall.rawSyscall6 |
| //go:nosplit |
| func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) { |
| args := struct{ fn, a1, a2, a3, a4, a5, a6, r1, r2, err uintptr }{fn, a1, a2, a3, a4, a5, a6, r1, r2, err} |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6)), unsafe.Pointer(&args)) |
| return args.r1, args.r2, args.err |
| } |
| |
| // crypto_x509_syscall is used in crypto/x509/internal/macos to call into Security.framework and CF. |
| |
| //go:linkname crypto_x509_syscall crypto/x509/internal/macos.syscall |
| //go:nosplit |
| func crypto_x509_syscall(fn, a1, a2, a3, a4, a5 uintptr, f1 float64) (r1 uintptr) { |
| args := struct { |
| fn, a1, a2, a3, a4, a5 uintptr |
| f1 float64 |
| r1 uintptr |
| }{fn, a1, a2, a3, a4, a5, f1, r1} |
| entersyscall() |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall_x509)), unsafe.Pointer(&args)) |
| exitsyscall() |
| return args.r1 |
| } |
| func syscall_x509() |
| |
| // The *_trampoline functions convert from the Go calling convention to the C calling convention |
| // and then call the underlying libc function. They are defined in sys_darwin_$ARCH.s. |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_attr_init(attr *pthreadattr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_attr_init_trampoline)), unsafe.Pointer(&attr)) |
| KeepAlive(attr) |
| return ret |
| } |
| func pthread_attr_init_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_attr_getstacksize(attr *pthreadattr, size *uintptr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_attr_getstacksize_trampoline)), unsafe.Pointer(&attr)) |
| KeepAlive(attr) |
| KeepAlive(size) |
| return ret |
| } |
| func pthread_attr_getstacksize_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_attr_setdetachstate(attr *pthreadattr, state int) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_attr_setdetachstate_trampoline)), unsafe.Pointer(&attr)) |
| KeepAlive(attr) |
| return ret |
| } |
| func pthread_attr_setdetachstate_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_create(attr *pthreadattr, start uintptr, arg unsafe.Pointer) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_create_trampoline)), unsafe.Pointer(&attr)) |
| KeepAlive(attr) |
| KeepAlive(arg) // Just for consistency. Arg of course needs to be kept alive for the start function. |
| return ret |
| } |
| func pthread_create_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func raise(sig uint32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(raise_trampoline)), unsafe.Pointer(&sig)) |
| } |
| func raise_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_self() (t pthread) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_self_trampoline)), unsafe.Pointer(&t)) |
| return |
| } |
| func pthread_self_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_kill(t pthread, sig uint32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_kill_trampoline)), unsafe.Pointer(&t)) |
| return |
| } |
| func pthread_kill_trampoline() |
| |
| // osinit_hack is a clumsy hack to work around Apple libc bugs |
| // causing fork+exec to hang in the child process intermittently. |
| // See go.dev/issue/33565 and go.dev/issue/56784 for a few reports. |
| // |
| // The stacks obtained from the hung child processes are in |
| // libSystem_atfork_child, which is supposed to reinitialize various |
| // parts of the C library in the new process. |
| // |
| // One common stack dies in _notify_fork_child calling _notify_globals |
| // (inlined) calling _os_alloc_once, because _os_alloc_once detects that |
| // the once lock is held by the parent process and then calls |
| // _os_once_gate_corruption_abort. The allocation is setting up the |
| // globals for the notification subsystem. See the source code at [1]. |
| // To work around this, we can allocate the globals earlier in the Go |
| // program's lifetime, before any execs are involved, by calling any |
| // notify routine that is exported, calls _notify_globals, and doesn't do |
| // anything too expensive otherwise. notify_is_valid_token(0) fits the bill. |
| // |
| // The other common stack dies in xpc_atfork_child calling |
| // _objc_msgSend_uncached which ends up in |
| // WAITING_FOR_ANOTHER_THREAD_TO_FINISH_CALLING_+initialize. Of course, |
| // whatever thread the child is waiting for is in the parent process and |
| // is not going to finish anything in the child process. There is no |
| // public source code for these routines, so it is unclear exactly what |
| // the problem is. An Apple engineer suggests using xpc_date_create_from_current, |
| // which empirically does fix the problem. |
| // |
| // So osinit_hack_trampoline (in sys_darwin_$GOARCH.s) calls |
| // notify_is_valid_token(0) and xpc_date_create_from_current(), which makes the |
| // fork+exec hangs stop happening. If Apple fixes the libc bug in |
| // some future version of macOS, then we can remove this awful code. |
| // |
| //go:nosplit |
| func osinit_hack() { |
| if GOOS == "darwin" { // not ios |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(osinit_hack_trampoline)), nil) |
| } |
| return |
| } |
| func osinit_hack_trampoline() |
| |
| // mmap is used to do low-level memory allocation via mmap. Don't allow stack |
| // splits, since this function (used by sysAlloc) is called in a lot of low-level |
| // parts of the runtime and callers often assume it won't acquire any locks. |
| // |
| //go:nosplit |
| func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) (unsafe.Pointer, int) { |
| args := struct { |
| addr unsafe.Pointer |
| n uintptr |
| prot, flags, fd int32 |
| off uint32 |
| ret1 unsafe.Pointer |
| ret2 int |
| }{addr, n, prot, flags, fd, off, nil, 0} |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(mmap_trampoline)), unsafe.Pointer(&args)) |
| return args.ret1, args.ret2 |
| } |
| func mmap_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func munmap(addr unsafe.Pointer, n uintptr) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(munmap_trampoline)), unsafe.Pointer(&addr)) |
| KeepAlive(addr) // Just for consistency. Hopefully addr is not a Go address. |
| } |
| func munmap_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func madvise(addr unsafe.Pointer, n uintptr, flags int32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(madvise_trampoline)), unsafe.Pointer(&addr)) |
| KeepAlive(addr) // Just for consistency. Hopefully addr is not a Go address. |
| } |
| func madvise_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func mlock(addr unsafe.Pointer, n uintptr) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(mlock_trampoline)), unsafe.Pointer(&addr)) |
| KeepAlive(addr) // Just for consistency. Hopefully addr is not a Go address. |
| } |
| func mlock_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func read(fd int32, p unsafe.Pointer, n int32) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(read_trampoline)), unsafe.Pointer(&fd)) |
| KeepAlive(p) |
| return ret |
| } |
| func read_trampoline() |
| |
| func pipe() (r, w int32, errno int32) { |
| var p [2]int32 |
| errno = libcCall(unsafe.Pointer(abi.FuncPCABI0(pipe_trampoline)), noescape(unsafe.Pointer(&p))) |
| return p[0], p[1], errno |
| } |
| func pipe_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func closefd(fd int32) int32 { |
| return libcCall(unsafe.Pointer(abi.FuncPCABI0(close_trampoline)), unsafe.Pointer(&fd)) |
| } |
| func close_trampoline() |
| |
| // This is exported via linkname to assembly in runtime/cgo. |
| // |
| //go:nosplit |
| //go:cgo_unsafe_args |
| //go:linkname exit |
| func exit(code int32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(exit_trampoline)), unsafe.Pointer(&code)) |
| } |
| func exit_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func usleep(usec uint32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(usleep_trampoline)), unsafe.Pointer(&usec)) |
| } |
| func usleep_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func usleep_no_g(usec uint32) { |
| asmcgocall_no_g(unsafe.Pointer(abi.FuncPCABI0(usleep_trampoline)), unsafe.Pointer(&usec)) |
| } |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func write1(fd uintptr, p unsafe.Pointer, n int32) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(write_trampoline)), unsafe.Pointer(&fd)) |
| KeepAlive(p) |
| return ret |
| } |
| func write_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func open(name *byte, mode, perm int32) (ret int32) { |
| ret = libcCall(unsafe.Pointer(abi.FuncPCABI0(open_trampoline)), unsafe.Pointer(&name)) |
| KeepAlive(name) |
| return |
| } |
| func open_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func nanotime1() int64 { |
| var r struct { |
| t int64 // raw timer |
| numer, denom uint32 // conversion factors. nanoseconds = t * numer / denom. |
| } |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(nanotime_trampoline)), unsafe.Pointer(&r)) |
| // Note: Apple seems unconcerned about overflow here. See |
| // https://developer.apple.com/library/content/qa/qa1398/_index.html |
| // Note also, numer == denom == 1 is common. |
| t := r.t |
| if r.numer != 1 { |
| t *= int64(r.numer) |
| } |
| if r.denom != 1 { |
| t /= int64(r.denom) |
| } |
| return t |
| } |
| func nanotime_trampoline() |
| |
| // walltime should be an internal detail, |
| // but widely used packages access it using linkname. |
| // Notable members of the hall of shame include: |
| // - gitee.com/quant1x/gox |
| // |
| // Do not remove or change the type signature. |
| // See go.dev/issue/67401. |
| // |
| //go:linkname walltime |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func walltime() (int64, int32) { |
| var t timespec |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(walltime_trampoline)), unsafe.Pointer(&t)) |
| return t.tv_sec, int32(t.tv_nsec) |
| } |
| func walltime_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func sigaction(sig uint32, new *usigactiont, old *usigactiont) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(sigaction_trampoline)), unsafe.Pointer(&sig)) |
| KeepAlive(new) |
| KeepAlive(old) |
| } |
| func sigaction_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func sigprocmask(how uint32, new *sigset, old *sigset) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(sigprocmask_trampoline)), unsafe.Pointer(&how)) |
| KeepAlive(new) |
| KeepAlive(old) |
| } |
| func sigprocmask_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func sigaltstack(new *stackt, old *stackt) { |
| if new != nil && new.ss_flags&_SS_DISABLE != 0 && new.ss_size == 0 { |
| // Despite the fact that Darwin's sigaltstack man page says it ignores the size |
| // when SS_DISABLE is set, it doesn't. sigaltstack returns ENOMEM |
| // if we don't give it a reasonable size. |
| // ref: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20140421/214296.html |
| new.ss_size = 32768 |
| } |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(sigaltstack_trampoline)), unsafe.Pointer(&new)) |
| KeepAlive(new) |
| KeepAlive(old) |
| } |
| func sigaltstack_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func raiseproc(sig uint32) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(raiseproc_trampoline)), unsafe.Pointer(&sig)) |
| } |
| func raiseproc_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func setitimer(mode int32, new, old *itimerval) { |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(setitimer_trampoline)), unsafe.Pointer(&mode)) |
| KeepAlive(new) |
| KeepAlive(old) |
| } |
| func setitimer_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func sysctl(mib *uint32, miblen uint32, oldp *byte, oldlenp *uintptr, newp *byte, newlen uintptr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(sysctl_trampoline)), unsafe.Pointer(&mib)) |
| KeepAlive(mib) |
| KeepAlive(oldp) |
| KeepAlive(oldlenp) |
| KeepAlive(newp) |
| return ret |
| } |
| func sysctl_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func sysctlbyname(name *byte, oldp *byte, oldlenp *uintptr, newp *byte, newlen uintptr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(sysctlbyname_trampoline)), unsafe.Pointer(&name)) |
| KeepAlive(name) |
| KeepAlive(oldp) |
| KeepAlive(oldlenp) |
| KeepAlive(newp) |
| return ret |
| } |
| func sysctlbyname_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func fcntl(fd, cmd, arg int32) (ret int32, errno int32) { |
| args := struct { |
| fd, cmd, arg int32 |
| ret, errno int32 |
| }{fd, cmd, arg, 0, 0} |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(fcntl_trampoline)), unsafe.Pointer(&args)) |
| return args.ret, args.errno |
| } |
| func fcntl_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func kqueue() int32 { |
| v := libcCall(unsafe.Pointer(abi.FuncPCABI0(kqueue_trampoline)), nil) |
| return v |
| } |
| func kqueue_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func kevent(kq int32, ch *keventt, nch int32, ev *keventt, nev int32, ts *timespec) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(kevent_trampoline)), unsafe.Pointer(&kq)) |
| KeepAlive(ch) |
| KeepAlive(ev) |
| KeepAlive(ts) |
| return ret |
| } |
| func kevent_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_mutex_init(m *pthreadmutex, attr *pthreadmutexattr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_mutex_init_trampoline)), unsafe.Pointer(&m)) |
| KeepAlive(m) |
| KeepAlive(attr) |
| return ret |
| } |
| func pthread_mutex_init_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_mutex_lock(m *pthreadmutex) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_mutex_lock_trampoline)), unsafe.Pointer(&m)) |
| KeepAlive(m) |
| return ret |
| } |
| func pthread_mutex_lock_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_mutex_unlock(m *pthreadmutex) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_mutex_unlock_trampoline)), unsafe.Pointer(&m)) |
| KeepAlive(m) |
| return ret |
| } |
| func pthread_mutex_unlock_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_cond_init(c *pthreadcond, attr *pthreadcondattr) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_cond_init_trampoline)), unsafe.Pointer(&c)) |
| KeepAlive(c) |
| KeepAlive(attr) |
| return ret |
| } |
| func pthread_cond_init_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_cond_wait(c *pthreadcond, m *pthreadmutex) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_cond_wait_trampoline)), unsafe.Pointer(&c)) |
| KeepAlive(c) |
| KeepAlive(m) |
| return ret |
| } |
| func pthread_cond_wait_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_cond_timedwait_relative_np(c *pthreadcond, m *pthreadmutex, t *timespec) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_cond_timedwait_relative_np_trampoline)), unsafe.Pointer(&c)) |
| KeepAlive(c) |
| KeepAlive(m) |
| KeepAlive(t) |
| return ret |
| } |
| func pthread_cond_timedwait_relative_np_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func pthread_cond_signal(c *pthreadcond) int32 { |
| ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_cond_signal_trampoline)), unsafe.Pointer(&c)) |
| KeepAlive(c) |
| return ret |
| } |
| func pthread_cond_signal_trampoline() |
| |
| //go:nosplit |
| //go:cgo_unsafe_args |
| func arc4random_buf(p unsafe.Pointer, n int32) { |
| // arc4random_buf() never fails, per its man page, so it's safe to ignore the return value. |
| libcCall(unsafe.Pointer(abi.FuncPCABI0(arc4random_buf_trampoline)), unsafe.Pointer(&p)) |
| KeepAlive(p) |
| } |
| func arc4random_buf_trampoline() |
| |
| // Not used on Darwin, but must be defined. |
| func exitThread(wait *atomic.Uint32) { |
| throw("exitThread") |
| } |
| |
| //go:nosplit |
| func setNonblock(fd int32) { |
| flags, _ := fcntl(fd, _F_GETFL, 0) |
| if flags != -1 { |
| fcntl(fd, _F_SETFL, flags|_O_NONBLOCK) |
| } |
| } |
| |
| func issetugid() int32 { |
| return libcCall(unsafe.Pointer(abi.FuncPCABI0(issetugid_trampoline)), nil) |
| } |
| func issetugid_trampoline() |
| |
| // mach_vm_region is used to obtain virtual memory mappings for use by the |
| // profiling system and is only exported to runtime/pprof. It is restricted |
| // to obtaining mappings for the current process. |
| // |
| //go:linkname mach_vm_region runtime/pprof.mach_vm_region |
| func mach_vm_region(address, region_size *uint64, info unsafe.Pointer) int32 { |
| // kern_return_t mach_vm_region( |
| // vm_map_read_t target_task, |
| // mach_vm_address_t *address, |
| // mach_vm_size_t *size, |
| // vm_region_flavor_t flavor, |
| // vm_region_info_t info, |
| // mach_msg_type_number_t *infoCnt, |
| // mach_port_t *object_name); |
| var count machMsgTypeNumber = _VM_REGION_BASIC_INFO_COUNT_64 |
| var object_name machPort |
| args := struct { |
| address *uint64 |
| size *uint64 |
| flavor machVMRegionFlavour |
| info unsafe.Pointer |
| count *machMsgTypeNumber |
| object_name *machPort |
| }{ |
| address: address, |
| size: region_size, |
| flavor: _VM_REGION_BASIC_INFO_64, |
| info: info, |
| count: &count, |
| object_name: &object_name, |
| } |
| return libcCall(unsafe.Pointer(abi.FuncPCABI0(mach_vm_region_trampoline)), unsafe.Pointer(&args)) |
| } |
| func mach_vm_region_trampoline() |
| |
| //go:linkname proc_regionfilename runtime/pprof.proc_regionfilename |
| func proc_regionfilename(pid int, address uint64, buf *byte, buflen int64) int32 { |
| args := struct { |
| pid int |
| address uint64 |
| buf *byte |
| bufSize int64 |
| }{ |
| pid: pid, |
| address: address, |
| buf: buf, |
| bufSize: buflen, |
| } |
| return libcCall(unsafe.Pointer(abi.FuncPCABI0(proc_regionfilename_trampoline)), unsafe.Pointer(&args)) |
| } |
| func proc_regionfilename_trampoline() |
| |
| // Tell the linker that the libc_* functions are to be found |
| // in a system library, with the libc_ prefix missing. |
| |
| //go:cgo_import_dynamic libc_pthread_attr_init pthread_attr_init "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_attr_getstacksize pthread_attr_getstacksize "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_attr_setdetachstate pthread_attr_setdetachstate "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_create pthread_create "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_self pthread_self "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_kill pthread_kill "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_exit _exit "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_raise raise "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_open open "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_close close "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_read read "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_write write "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pipe pipe "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_mmap mmap "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_munmap munmap "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_madvise madvise "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_mlock mlock "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_error __error "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_usleep usleep "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_proc_regionfilename proc_regionfilename "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_mach_task_self_ mach_task_self_ "/usr/lib/libSystem.B.dylib"" |
| //go:cgo_import_dynamic libc_mach_vm_region mach_vm_region "/usr/lib/libSystem.B.dylib"" |
| //go:cgo_import_dynamic libc_mach_timebase_info mach_timebase_info "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_mach_absolute_time mach_absolute_time "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_clock_gettime clock_gettime "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_sigaction sigaction "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_sigmask pthread_sigmask "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_sigaltstack sigaltstack "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_getpid getpid "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_kill kill "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_setitimer setitimer "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_sysctlbyname sysctlbyname "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_fcntl fcntl "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_kqueue kqueue "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_kevent kevent "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_pthread_mutex_init pthread_mutex_init "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_mutex_lock pthread_mutex_lock "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_mutex_unlock pthread_mutex_unlock "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_cond_init pthread_cond_init "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_cond_wait pthread_cond_wait "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_cond_timedwait_relative_np pthread_cond_timedwait_relative_np "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_pthread_cond_signal pthread_cond_signal "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_arc4random_buf arc4random_buf "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_notify_is_valid_token notify_is_valid_token "/usr/lib/libSystem.B.dylib" |
| //go:cgo_import_dynamic libc_xpc_date_create_from_current xpc_date_create_from_current "/usr/lib/libSystem.B.dylib" |
| |
| //go:cgo_import_dynamic libc_issetugid issetugid "/usr/lib/libSystem.B.dylib" |
