mirror of https://github.com/go-gitea/gitea
techknowlogick
4 years ago
committed by
GitHub
parent
0d7afb02c0
commit
558b0005ff
@ -1,6 +1,7 @@ |
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// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
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// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
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// +build go1.14
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//go:build go1.14 && !go1.16
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// +build go1.14,!go1.16
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package idna |
package idna |
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,173 @@ |
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cpu |
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import ( |
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"syscall" |
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"unsafe" |
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) |
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// Minimal copy of functionality from x/sys/unix so the cpu package can call
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// sysctl without depending on x/sys/unix.
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const ( |
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_CTL_QUERY = -2 |
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_SYSCTL_VERS_1 = 0x1000000 |
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) |
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var _zero uintptr |
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func sysctl(mib []int32, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) { |
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var _p0 unsafe.Pointer |
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if len(mib) > 0 { |
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_p0 = unsafe.Pointer(&mib[0]) |
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} else { |
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_p0 = unsafe.Pointer(&_zero) |
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} |
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_, _, errno := syscall.Syscall6( |
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syscall.SYS___SYSCTL, |
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uintptr(_p0), |
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uintptr(len(mib)), |
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uintptr(unsafe.Pointer(old)), |
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uintptr(unsafe.Pointer(oldlen)), |
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uintptr(unsafe.Pointer(new)), |
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uintptr(newlen)) |
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if errno != 0 { |
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return errno |
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} |
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return nil |
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} |
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type sysctlNode struct { |
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Flags uint32 |
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Num int32 |
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Name [32]int8 |
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Ver uint32 |
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__rsvd uint32 |
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Un [16]byte |
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_sysctl_size [8]byte |
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_sysctl_func [8]byte |
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_sysctl_parent [8]byte |
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_sysctl_desc [8]byte |
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} |
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func sysctlNodes(mib []int32) ([]sysctlNode, error) { |
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var olen uintptr |
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// Get a list of all sysctl nodes below the given MIB by performing
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// a sysctl for the given MIB with CTL_QUERY appended.
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mib = append(mib, _CTL_QUERY) |
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qnode := sysctlNode{Flags: _SYSCTL_VERS_1} |
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qp := (*byte)(unsafe.Pointer(&qnode)) |
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sz := unsafe.Sizeof(qnode) |
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if err := sysctl(mib, nil, &olen, qp, sz); err != nil { |
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return nil, err |
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} |
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// Now that we know the size, get the actual nodes.
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nodes := make([]sysctlNode, olen/sz) |
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np := (*byte)(unsafe.Pointer(&nodes[0])) |
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if err := sysctl(mib, np, &olen, qp, sz); err != nil { |
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return nil, err |
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} |
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return nodes, nil |
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} |
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func nametomib(name string) ([]int32, error) { |
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// Split name into components.
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var parts []string |
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last := 0 |
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for i := 0; i < len(name); i++ { |
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if name[i] == '.' { |
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parts = append(parts, name[last:i]) |
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last = i + 1 |
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} |
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} |
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parts = append(parts, name[last:]) |
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mib := []int32{} |
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// Discover the nodes and construct the MIB OID.
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for partno, part := range parts { |
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nodes, err := sysctlNodes(mib) |
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if err != nil { |
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return nil, err |
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} |
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for _, node := range nodes { |
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n := make([]byte, 0) |
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for i := range node.Name { |
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if node.Name[i] != 0 { |
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n = append(n, byte(node.Name[i])) |
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} |
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} |
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if string(n) == part { |
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mib = append(mib, int32(node.Num)) |
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break |
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} |
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} |
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if len(mib) != partno+1 { |
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return nil, err |
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} |
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} |
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return mib, nil |
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} |
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// aarch64SysctlCPUID is struct aarch64_sysctl_cpu_id from NetBSD's <aarch64/armreg.h>
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type aarch64SysctlCPUID struct { |
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midr uint64 /* Main ID Register */ |
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revidr uint64 /* Revision ID Register */ |
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mpidr uint64 /* Multiprocessor Affinity Register */ |
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aa64dfr0 uint64 /* A64 Debug Feature Register 0 */ |
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aa64dfr1 uint64 /* A64 Debug Feature Register 1 */ |
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aa64isar0 uint64 /* A64 Instruction Set Attribute Register 0 */ |
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aa64isar1 uint64 /* A64 Instruction Set Attribute Register 1 */ |
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aa64mmfr0 uint64 /* A64 Memory Model Feature Register 0 */ |
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aa64mmfr1 uint64 /* A64 Memory Model Feature Register 1 */ |
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aa64mmfr2 uint64 /* A64 Memory Model Feature Register 2 */ |
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aa64pfr0 uint64 /* A64 Processor Feature Register 0 */ |
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aa64pfr1 uint64 /* A64 Processor Feature Register 1 */ |
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aa64zfr0 uint64 /* A64 SVE Feature ID Register 0 */ |
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mvfr0 uint32 /* Media and VFP Feature Register 0 */ |
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mvfr1 uint32 /* Media and VFP Feature Register 1 */ |
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mvfr2 uint32 /* Media and VFP Feature Register 2 */ |
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pad uint32 |
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clidr uint64 /* Cache Level ID Register */ |
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ctr uint64 /* Cache Type Register */ |
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} |
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func sysctlCPUID(name string) (*aarch64SysctlCPUID, error) { |
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mib, err := nametomib(name) |
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if err != nil { |
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return nil, err |
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} |
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out := aarch64SysctlCPUID{} |
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n := unsafe.Sizeof(out) |
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_, _, errno := syscall.Syscall6( |
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syscall.SYS___SYSCTL, |
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uintptr(unsafe.Pointer(&mib[0])), |
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uintptr(len(mib)), |
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uintptr(unsafe.Pointer(&out)), |
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uintptr(unsafe.Pointer(&n)), |
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uintptr(0), |
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uintptr(0)) |
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if errno != 0 { |
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return nil, errno |
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} |
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return &out, nil |
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} |
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func doinit() { |
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cpuid, err := sysctlCPUID("machdep.cpu0.cpu_id") |
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if err != nil { |
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setMinimalFeatures() |
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return |
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} |
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parseARM64SystemRegisters(cpuid.aa64isar0, cpuid.aa64isar1, cpuid.aa64pfr0) |
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Initialized = true |
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} |
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@ -0,0 +1,13 @@ |
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !linux && (mips64 || mips64le)
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// +build !linux
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// +build mips64 mips64le
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package cpu |
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func archInit() { |
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Initialized = true |
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} |
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@ -0,0 +1,10 @@ |
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cpu |
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func archInit() { |
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doinit() |
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Initialized = true |
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} |
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@ -0,0 +1,25 @@ |
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cpu |
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func initS390Xbase() { |
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// get the facilities list
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facilities := stfle() |
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// mandatory
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S390X.HasZARCH = facilities.Has(zarch) |
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S390X.HasSTFLE = facilities.Has(stflef) |
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S390X.HasLDISP = facilities.Has(ldisp) |
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S390X.HasEIMM = facilities.Has(eimm) |
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// optional
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S390X.HasETF3EH = facilities.Has(etf3eh) |
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S390X.HasDFP = facilities.Has(dfp) |
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S390X.HasMSA = facilities.Has(msa) |
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S390X.HasVX = facilities.Has(vx) |
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if S390X.HasVX { |
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S390X.HasVXE = facilities.Has(vxe) |
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} |
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} |
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@ -1,14 +1,14 @@ |
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// Copyright 2009 The Go Authors. All rights reserved. |
// Copyright 2021 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
// license that can be found in the LICENSE file. |
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// +build !gccgo |
//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc |
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// +build darwin dragonfly freebsd netbsd openbsd |
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// +build gc |
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#include "textflag.h" |
#include "textflag.h" |
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// |
// System call support for AMD64 BSD |
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// System call support for AMD64, OpenBSD |
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// |
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// Just jump to package syscall's implementation for all these functions. |
// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
// The runtime may know about them. |
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@ -1,14 +1,14 @@ |
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// Copyright 2012 The Go Authors. All rights reserved. |
// Copyright 2021 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
// license that can be found in the LICENSE file. |
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// +build !gccgo |
//go:build (darwin || freebsd || netbsd || openbsd) && gc |
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// +build darwin freebsd netbsd openbsd |
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// +build gc |
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#include "textflag.h" |
#include "textflag.h" |
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// |
// System call support for ARM BSD |
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// System call support for ARM, FreeBSD |
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// |
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// Just jump to package syscall's implementation for all these functions. |
// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
// The runtime may know about them. |
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@ -1,14 +1,14 @@ |
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// Copyright 2009 The Go Authors. All rights reserved. |
// Copyright 2021 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
// license that can be found in the LICENSE file. |
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// +build !gccgo |
//go:build (darwin || freebsd || netbsd || openbsd) && gc |
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// +build darwin freebsd netbsd openbsd |
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// +build gc |
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#include "textflag.h" |
#include "textflag.h" |
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// |
// System call support for ARM64 BSD |
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// System call support for AMD64, NetBSD |
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// |
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// Just jump to package syscall's implementation for all these functions. |
// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
// The runtime may know about them. |
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@ -1,29 +0,0 @@ |
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// Copyright 2009 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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// +build !gccgo |
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#include "textflag.h" |
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// |
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// System call support for 386, Darwin |
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// |
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// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
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TEXT ·Syscall(SB),NOSPLIT,$0-28 |
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JMP syscall·Syscall(SB) |
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TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
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JMP syscall·Syscall6(SB) |
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TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
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JMP syscall·Syscall9(SB) |
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TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
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JMP syscall·RawSyscall(SB) |
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
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JMP syscall·RawSyscall6(SB) |
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@ -1,29 +0,0 @@ |
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// Copyright 2009 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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// +build !gccgo |
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#include "textflag.h" |
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// |
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// System call support for AMD64, Darwin |
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// |
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// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
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TEXT ·Syscall(SB),NOSPLIT,$0-56 |
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JMP syscall·Syscall(SB) |
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TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
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JMP syscall·Syscall6(SB) |
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TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
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JMP syscall·Syscall9(SB) |
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TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
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JMP syscall·RawSyscall(SB) |
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
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JMP syscall·RawSyscall6(SB) |
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@ -1,30 +0,0 @@ |
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// Copyright 2015 The Go Authors. All rights reserved. |
|
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// Use of this source code is governed by a BSD-style |
|
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// license that can be found in the LICENSE file. |
|
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|
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// +build !gccgo |
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// +build arm,darwin |
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#include "textflag.h" |
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// |
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// System call support for ARM, Darwin |
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// |
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// Just jump to package syscall's implementation for all these functions. |
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// The runtime may know about them. |
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|
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TEXT ·Syscall(SB),NOSPLIT,$0-28 |
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B syscall·Syscall(SB) |
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TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
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B syscall·Syscall6(SB) |
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|
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TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
|
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B syscall·Syscall9(SB) |
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|
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TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
|
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B syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
|
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B syscall·RawSyscall6(SB) |
|
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@ -1,30 +0,0 @@ |
|||||||
// 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 !gccgo |
|
||||||
// +build arm64,darwin |
|
||||||
|
|
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#include "textflag.h" |
|
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|
|
||||||
// |
|
||||||
// System call support for AMD64, Darwin |
|
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// |
|
||||||
|
|
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// Just jump to package syscall's implementation for all these functions. |
|
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// The runtime may know about them. |
|
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|
|
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TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
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B syscall·Syscall(SB) |
|
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|
|
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TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
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B syscall·Syscall6(SB) |
|
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|
|
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TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
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B syscall·Syscall9(SB) |
|
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|
|
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TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
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B syscall·RawSyscall(SB) |
|
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|
|
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
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B syscall·RawSyscall6(SB) |
|
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@ -1,29 +0,0 @@ |
|||||||
// 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for AMD64, DragonFly |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for AMD64, FreeBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// 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. |
|
||||||
|
|
||||||
// +build !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for ARM64, FreeBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for 386, NetBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-28 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// Copyright 2013 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for ARM, NetBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-28 |
|
||||||
B syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
|
||||||
B syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
|
||||||
B syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
|
||||||
B syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
|
||||||
B syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// Copyright 2019 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for ARM64, NetBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
||||||
B syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
||||||
B syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
||||||
B syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
||||||
B syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
||||||
B syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for 386, OpenBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-28 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// Copyright 2017 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for ARM, OpenBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-28 |
|
||||||
B syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
|
||||||
B syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
|
||||||
B syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
|
||||||
B syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
|
||||||
B syscall·RawSyscall6(SB) |
|
||||||
@ -1,29 +0,0 @@ |
|||||||
// Copyright 2019 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 !gccgo |
|
||||||
|
|
||||||
#include "textflag.h" |
|
||||||
|
|
||||||
// |
|
||||||
// System call support for arm64, OpenBSD |
|
||||||
// |
|
||||||
|
|
||||||
// Just jump to package syscall's implementation for all these functions. |
|
||||||
// The runtime may know about them. |
|
||||||
|
|
||||||
TEXT ·Syscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·Syscall(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·Syscall6(SB) |
|
||||||
|
|
||||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104 |
|
||||||
JMP syscall·Syscall9(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
|
||||||
JMP syscall·RawSyscall(SB) |
|
||||||
|
|
||||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
|
||||||
JMP syscall·RawSyscall6(SB) |
|
||||||
@ -0,0 +1,426 @@ |
|||||||
|
// Copyright 2020 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 zos && s390x && gc |
||||||
|
// +build zos |
||||||
|
// +build s390x |
||||||
|
// +build gc |
||||||
|
|
||||||
|
#include "textflag.h" |
||||||
|
|
||||||
|
#define PSALAA 1208(R0) |
||||||
|
#define GTAB64(x) 80(x) |
||||||
|
#define LCA64(x) 88(x) |
||||||
|
#define CAA(x) 8(x) |
||||||
|
#define EDCHPXV(x) 1016(x) // in the CAA |
||||||
|
#define SAVSTACK_ASYNC(x) 336(x) // in the LCA |
||||||
|
|
||||||
|
// SS_*, where x=SAVSTACK_ASYNC |
||||||
|
#define SS_LE(x) 0(x) |
||||||
|
#define SS_GO(x) 8(x) |
||||||
|
#define SS_ERRNO(x) 16(x) |
||||||
|
#define SS_ERRNOJR(x) 20(x) |
||||||
|
|
||||||
|
#define LE_CALL BYTE $0x0D; BYTE $0x76; // BL R7, R6
|
||||||
|
|
||||||
|
TEXT ·clearErrno(SB),NOSPLIT,$0-0 |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVD $0, 0(R3) |
||||||
|
RET |
||||||
|
|
||||||
|
// Returns the address of errno in R3. |
||||||
|
TEXT addrerrno<>(SB),NOSPLIT|NOFRAME,$0-0 |
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get __errno FuncDesc. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
ADD $(0x156*16), R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Switch to saved LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Call __errno function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
|
||||||
|
// Switch back to Go stack. |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_syscall(SB),NOSPLIT,$0-56 |
||||||
|
BL runtime·entersyscall(SB) |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+32(FP) |
||||||
|
MOVD R0, r2+40(FP) |
||||||
|
MOVD R0, err+48(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+48(FP) |
||||||
|
done: |
||||||
|
BL runtime·exitsyscall(SB) |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_rawsyscall(SB),NOSPLIT,$0-56 |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+32(FP) |
||||||
|
MOVD R0, r2+40(FP) |
||||||
|
MOVD R0, err+48(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+48(FP) |
||||||
|
done: |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_syscall6(SB),NOSPLIT,$0-80 |
||||||
|
BL runtime·entersyscall(SB) |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Fill in parameter list. |
||||||
|
MOVD a4+32(FP), R12 |
||||||
|
MOVD R12, (2176+24)(R4) |
||||||
|
MOVD a5+40(FP), R12 |
||||||
|
MOVD R12, (2176+32)(R4) |
||||||
|
MOVD a6+48(FP), R12 |
||||||
|
MOVD R12, (2176+40)(R4) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+56(FP) |
||||||
|
MOVD R0, r2+64(FP) |
||||||
|
MOVD R0, err+72(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+72(FP) |
||||||
|
done: |
||||||
|
BL runtime·exitsyscall(SB) |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_rawsyscall6(SB),NOSPLIT,$0-80 |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Fill in parameter list. |
||||||
|
MOVD a4+32(FP), R12 |
||||||
|
MOVD R12, (2176+24)(R4) |
||||||
|
MOVD a5+40(FP), R12 |
||||||
|
MOVD R12, (2176+32)(R4) |
||||||
|
MOVD a6+48(FP), R12 |
||||||
|
MOVD R12, (2176+40)(R4) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+56(FP) |
||||||
|
MOVD R0, r2+64(FP) |
||||||
|
MOVD R0, err+72(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL ·rrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+72(FP) |
||||||
|
done: |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_syscall9(SB),NOSPLIT,$0 |
||||||
|
BL runtime·entersyscall(SB) |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Fill in parameter list. |
||||||
|
MOVD a4+32(FP), R12 |
||||||
|
MOVD R12, (2176+24)(R4) |
||||||
|
MOVD a5+40(FP), R12 |
||||||
|
MOVD R12, (2176+32)(R4) |
||||||
|
MOVD a6+48(FP), R12 |
||||||
|
MOVD R12, (2176+40)(R4) |
||||||
|
MOVD a7+56(FP), R12 |
||||||
|
MOVD R12, (2176+48)(R4) |
||||||
|
MOVD a8+64(FP), R12 |
||||||
|
MOVD R12, (2176+56)(R4) |
||||||
|
MOVD a9+72(FP), R12 |
||||||
|
MOVD R12, (2176+64)(R4) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+80(FP) |
||||||
|
MOVD R0, r2+88(FP) |
||||||
|
MOVD R0, err+96(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+96(FP) |
||||||
|
done: |
||||||
|
BL runtime·exitsyscall(SB) |
||||||
|
RET |
||||||
|
|
||||||
|
TEXT ·syscall_rawsyscall9(SB),NOSPLIT,$0 |
||||||
|
MOVD a1+8(FP), R1 |
||||||
|
MOVD a2+16(FP), R2 |
||||||
|
MOVD a3+24(FP), R3 |
||||||
|
|
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get function. |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD EDCHPXV(R9), R9 |
||||||
|
MOVD trap+0(FP), R5 |
||||||
|
SLD $4, R5 |
||||||
|
ADD R5, R9 |
||||||
|
LMG 0(R9), R5, R6 |
||||||
|
|
||||||
|
// Restore LE stack. |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R4 |
||||||
|
MOVD $0, 0(R9) |
||||||
|
|
||||||
|
// Fill in parameter list. |
||||||
|
MOVD a4+32(FP), R12 |
||||||
|
MOVD R12, (2176+24)(R4) |
||||||
|
MOVD a5+40(FP), R12 |
||||||
|
MOVD R12, (2176+32)(R4) |
||||||
|
MOVD a6+48(FP), R12 |
||||||
|
MOVD R12, (2176+40)(R4) |
||||||
|
MOVD a7+56(FP), R12 |
||||||
|
MOVD R12, (2176+48)(R4) |
||||||
|
MOVD a8+64(FP), R12 |
||||||
|
MOVD R12, (2176+56)(R4) |
||||||
|
MOVD a9+72(FP), R12 |
||||||
|
MOVD R12, (2176+64)(R4) |
||||||
|
|
||||||
|
// Call function. |
||||||
|
LE_CALL |
||||||
|
NOPH |
||||||
|
XOR R0, R0 // Restore R0 to $0. |
||||||
|
MOVD R4, 0(R9) // Save stack pointer. |
||||||
|
|
||||||
|
MOVD R3, r1+80(FP) |
||||||
|
MOVD R0, r2+88(FP) |
||||||
|
MOVD R0, err+96(FP) |
||||||
|
MOVW R3, R4 |
||||||
|
CMP R4, $-1 |
||||||
|
BNE done |
||||||
|
BL addrerrno<>(SB) |
||||||
|
MOVWZ 0(R3), R3 |
||||||
|
MOVD R3, err+96(FP) |
||||||
|
done: |
||||||
|
RET |
||||||
|
|
||||||
|
// func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64) |
||||||
|
TEXT ·svcCall(SB),NOSPLIT,$0 |
||||||
|
BL runtime·save_g(SB) // Save g and stack pointer |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD R15, 0(R9) |
||||||
|
|
||||||
|
MOVD argv+8(FP), R1 // Move function arguments into registers |
||||||
|
MOVD dsa+16(FP), g |
||||||
|
MOVD fnptr+0(FP), R15 |
||||||
|
|
||||||
|
BYTE $0x0D // Branch to function |
||||||
|
BYTE $0xEF |
||||||
|
|
||||||
|
BL runtime·load_g(SB) // Restore g and stack pointer |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
MOVD SAVSTACK_ASYNC(R8), R9 |
||||||
|
MOVD 0(R9), R15 |
||||||
|
|
||||||
|
RET |
||||||
|
|
||||||
|
// func svcLoad(name *byte) unsafe.Pointer |
||||||
|
TEXT ·svcLoad(SB),NOSPLIT,$0 |
||||||
|
MOVD R15, R2 // Save go stack pointer |
||||||
|
MOVD name+0(FP), R0 // Move SVC args into registers |
||||||
|
MOVD $0x80000000, R1 |
||||||
|
MOVD $0, R15 |
||||||
|
BYTE $0x0A // SVC 08 LOAD |
||||||
|
BYTE $0x08 |
||||||
|
MOVW R15, R3 // Save return code from SVC |
||||||
|
MOVD R2, R15 // Restore go stack pointer |
||||||
|
CMP R3, $0 // Check SVC return code |
||||||
|
BNE error |
||||||
|
|
||||||
|
MOVD $-2, R3 // Reset last bit of entry point to zero |
||||||
|
AND R0, R3 |
||||||
|
MOVD R3, addr+8(FP) // Return entry point returned by SVC |
||||||
|
CMP R0, R3 // Check if last bit of entry point was set |
||||||
|
BNE done |
||||||
|
|
||||||
|
MOVD R15, R2 // Save go stack pointer |
||||||
|
MOVD $0, R15 // Move SVC args into registers (entry point still in r0 from SVC 08) |
||||||
|
BYTE $0x0A // SVC 09 DELETE |
||||||
|
BYTE $0x09 |
||||||
|
MOVD R2, R15 // Restore go stack pointer |
||||||
|
|
||||||
|
error: |
||||||
|
MOVD $0, addr+8(FP) // Return 0 on failure |
||||||
|
done: |
||||||
|
XOR R0, R0 // Reset r0 to 0 |
||||||
|
RET |
||||||
|
|
||||||
|
// func svcUnload(name *byte, fnptr unsafe.Pointer) int64 |
||||||
|
TEXT ·svcUnload(SB),NOSPLIT,$0 |
||||||
|
MOVD R15, R2 // Save go stack pointer |
||||||
|
MOVD name+0(FP), R0 // Move SVC args into registers |
||||||
|
MOVD addr+8(FP), R15 |
||||||
|
BYTE $0x0A // SVC 09 |
||||||
|
BYTE $0x09 |
||||||
|
XOR R0, R0 // Reset r0 to 0 |
||||||
|
MOVD R15, R1 // Save SVC return code |
||||||
|
MOVD R2, R15 // Restore go stack pointer |
||||||
|
MOVD R1, rc+0(FP) // Return SVC return code |
||||||
|
RET |
||||||
|
|
||||||
|
// func gettid() uint64 |
||||||
|
TEXT ·gettid(SB), NOSPLIT, $0 |
||||||
|
// Get library control area (LCA). |
||||||
|
MOVW PSALAA, R8 |
||||||
|
MOVD LCA64(R8), R8 |
||||||
|
|
||||||
|
// Get CEECAATHDID |
||||||
|
MOVD CAA(R8), R9 |
||||||
|
MOVD 0x3D0(R9), R9 |
||||||
|
MOVD R9, ret+0(FP) |
||||||
|
|
||||||
|
RET |
||||||
@ -0,0 +1,29 @@ |
|||||||
|
// Copyright 2020 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 zos && s390x
|
||||||
|
// +build zos,s390x
|
||||||
|
|
||||||
|
// Functions to access/create device major and minor numbers matching the
|
||||||
|
// encoding used by z/OS.
|
||||||
|
//
|
||||||
|
// The information below is extracted and adapted from <sys/stat.h> macros.
|
||||||
|
|
||||||
|
package unix |
||||||
|
|
||||||
|
// Major returns the major component of a z/OS device number.
|
||||||
|
func Major(dev uint64) uint32 { |
||||||
|
return uint32((dev >> 16) & 0x0000FFFF) |
||||||
|
} |
||||||
|
|
||||||
|
// Minor returns the minor component of a z/OS device number.
|
||||||
|
func Minor(dev uint64) uint32 { |
||||||
|
return uint32(dev & 0x0000FFFF) |
||||||
|
} |
||||||
|
|
||||||
|
// Mkdev returns a z/OS device number generated from the given major and minor
|
||||||
|
// components.
|
||||||
|
func Mkdev(major, minor uint32) uint64 { |
||||||
|
return (uint64(major) << 16) | uint64(minor) |
||||||
|
} |
||||||
@ -0,0 +1,221 @@ |
|||||||
|
// Copyright 2020 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 zos && s390x
|
||||||
|
// +build zos,s390x
|
||||||
|
|
||||||
|
package unix |
||||||
|
|
||||||
|
import ( |
||||||
|
"sync" |
||||||
|
) |
||||||
|
|
||||||
|
// This file simulates epoll on z/OS using poll.
|
||||||
|
|
||||||
|
// Analogous to epoll_event on Linux.
|
||||||
|
// TODO(neeilan): Pad is because the Linux kernel expects a 96-bit struct. We never pass this to the kernel; remove?
|
||||||
|
type EpollEvent struct { |
||||||
|
Events uint32 |
||||||
|
Fd int32 |
||||||
|
Pad int32 |
||||||
|
} |
||||||
|
|
||||||
|
const ( |
||||||
|
EPOLLERR = 0x8 |
||||||
|
EPOLLHUP = 0x10 |
||||||
|
EPOLLIN = 0x1 |
||||||
|
EPOLLMSG = 0x400 |
||||||
|
EPOLLOUT = 0x4 |
||||||
|
EPOLLPRI = 0x2 |
||||||
|
EPOLLRDBAND = 0x80 |
||||||
|
EPOLLRDNORM = 0x40 |
||||||
|
EPOLLWRBAND = 0x200 |
||||||
|
EPOLLWRNORM = 0x100 |
||||||
|
EPOLL_CTL_ADD = 0x1 |
||||||
|
EPOLL_CTL_DEL = 0x2 |
||||||
|
EPOLL_CTL_MOD = 0x3 |
||||||
|
// The following constants are part of the epoll API, but represent
|
||||||
|
// currently unsupported functionality on z/OS.
|
||||||
|
// EPOLL_CLOEXEC = 0x80000
|
||||||
|
// EPOLLET = 0x80000000
|
||||||
|
// EPOLLONESHOT = 0x40000000
|
||||||
|
// EPOLLRDHUP = 0x2000 // Typically used with edge-triggered notis
|
||||||
|
// EPOLLEXCLUSIVE = 0x10000000 // Exclusive wake-up mode
|
||||||
|
// EPOLLWAKEUP = 0x20000000 // Relies on Linux's BLOCK_SUSPEND capability
|
||||||
|
) |
||||||
|
|
||||||
|
// TODO(neeilan): We can eliminate these epToPoll / pToEpoll calls by using identical mask values for POLL/EPOLL
|
||||||
|
// constants where possible The lower 16 bits of epoll events (uint32) can fit any system poll event (int16).
|
||||||
|
|
||||||
|
// epToPollEvt converts epoll event field to poll equivalent.
|
||||||
|
// In epoll, Events is a 32-bit field, while poll uses 16 bits.
|
||||||
|
func epToPollEvt(events uint32) int16 { |
||||||
|
var ep2p = map[uint32]int16{ |
||||||
|
EPOLLIN: POLLIN, |
||||||
|
EPOLLOUT: POLLOUT, |
||||||
|
EPOLLHUP: POLLHUP, |
||||||
|
EPOLLPRI: POLLPRI, |
||||||
|
EPOLLERR: POLLERR, |
||||||
|
} |
||||||
|
|
||||||
|
var pollEvts int16 = 0 |
||||||
|
for epEvt, pEvt := range ep2p { |
||||||
|
if (events & epEvt) != 0 { |
||||||
|
pollEvts |= pEvt |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return pollEvts |
||||||
|
} |
||||||
|
|
||||||
|
// pToEpollEvt converts 16 bit poll event bitfields to 32-bit epoll event fields.
|
||||||
|
func pToEpollEvt(revents int16) uint32 { |
||||||
|
var p2ep = map[int16]uint32{ |
||||||
|
POLLIN: EPOLLIN, |
||||||
|
POLLOUT: EPOLLOUT, |
||||||
|
POLLHUP: EPOLLHUP, |
||||||
|
POLLPRI: EPOLLPRI, |
||||||
|
POLLERR: EPOLLERR, |
||||||
|
} |
||||||
|
|
||||||
|
var epollEvts uint32 = 0 |
||||||
|
for pEvt, epEvt := range p2ep { |
||||||
|
if (revents & pEvt) != 0 { |
||||||
|
epollEvts |= epEvt |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return epollEvts |
||||||
|
} |
||||||
|
|
||||||
|
// Per-process epoll implementation.
|
||||||
|
type epollImpl struct { |
||||||
|
mu sync.Mutex |
||||||
|
epfd2ep map[int]*eventPoll |
||||||
|
nextEpfd int |
||||||
|
} |
||||||
|
|
||||||
|
// eventPoll holds a set of file descriptors being watched by the process. A process can have multiple epoll instances.
|
||||||
|
// On Linux, this is an in-kernel data structure accessed through a fd.
|
||||||
|
type eventPoll struct { |
||||||
|
mu sync.Mutex |
||||||
|
fds map[int]*EpollEvent |
||||||
|
} |
||||||
|
|
||||||
|
// epoll impl for this process.
|
||||||
|
var impl epollImpl = epollImpl{ |
||||||
|
epfd2ep: make(map[int]*eventPoll), |
||||||
|
nextEpfd: 0, |
||||||
|
} |
||||||
|
|
||||||
|
func (e *epollImpl) epollcreate(size int) (epfd int, err error) { |
||||||
|
e.mu.Lock() |
||||||
|
defer e.mu.Unlock() |
||||||
|
epfd = e.nextEpfd |
||||||
|
e.nextEpfd++ |
||||||
|
|
||||||
|
e.epfd2ep[epfd] = &eventPoll{ |
||||||
|
fds: make(map[int]*EpollEvent), |
||||||
|
} |
||||||
|
return epfd, nil |
||||||
|
} |
||||||
|
|
||||||
|
func (e *epollImpl) epollcreate1(flag int) (fd int, err error) { |
||||||
|
return e.epollcreate(4) |
||||||
|
} |
||||||
|
|
||||||
|
func (e *epollImpl) epollctl(epfd int, op int, fd int, event *EpollEvent) (err error) { |
||||||
|
e.mu.Lock() |
||||||
|
defer e.mu.Unlock() |
||||||
|
|
||||||
|
ep, ok := e.epfd2ep[epfd] |
||||||
|
if !ok { |
||||||
|
|
||||||
|
return EBADF |
||||||
|
} |
||||||
|
|
||||||
|
switch op { |
||||||
|
case EPOLL_CTL_ADD: |
||||||
|
// TODO(neeilan): When we make epfds and fds disjoint, detect epoll
|
||||||
|
// loops here (instances watching each other) and return ELOOP.
|
||||||
|
if _, ok := ep.fds[fd]; ok { |
||||||
|
return EEXIST |
||||||
|
} |
||||||
|
ep.fds[fd] = event |
||||||
|
case EPOLL_CTL_MOD: |
||||||
|
if _, ok := ep.fds[fd]; !ok { |
||||||
|
return ENOENT |
||||||
|
} |
||||||
|
ep.fds[fd] = event |
||||||
|
case EPOLL_CTL_DEL: |
||||||
|
if _, ok := ep.fds[fd]; !ok { |
||||||
|
return ENOENT |
||||||
|
} |
||||||
|
delete(ep.fds, fd) |
||||||
|
|
||||||
|
} |
||||||
|
return nil |
||||||
|
} |
||||||
|
|
||||||
|
// Must be called while holding ep.mu
|
||||||
|
func (ep *eventPoll) getFds() []int { |
||||||
|
fds := make([]int, len(ep.fds)) |
||||||
|
for fd := range ep.fds { |
||||||
|
fds = append(fds, fd) |
||||||
|
} |
||||||
|
return fds |
||||||
|
} |
||||||
|
|
||||||
|
func (e *epollImpl) epollwait(epfd int, events []EpollEvent, msec int) (n int, err error) { |
||||||
|
e.mu.Lock() // in [rare] case of concurrent epollcreate + epollwait
|
||||||
|
ep, ok := e.epfd2ep[epfd] |
||||||
|
|
||||||
|
if !ok { |
||||||
|
e.mu.Unlock() |
||||||
|
return 0, EBADF |
||||||
|
} |
||||||
|
|
||||||
|
pollfds := make([]PollFd, 4) |
||||||
|
for fd, epollevt := range ep.fds { |
||||||
|
pollfds = append(pollfds, PollFd{Fd: int32(fd), Events: epToPollEvt(epollevt.Events)}) |
||||||
|
} |
||||||
|
e.mu.Unlock() |
||||||
|
|
||||||
|
n, err = Poll(pollfds, msec) |
||||||
|
if err != nil { |
||||||
|
return n, err |
||||||
|
} |
||||||
|
|
||||||
|
i := 0 |
||||||
|
for _, pFd := range pollfds { |
||||||
|
if pFd.Revents != 0 { |
||||||
|
events[i] = EpollEvent{Fd: pFd.Fd, Events: pToEpollEvt(pFd.Revents)} |
||||||
|
i++ |
||||||
|
} |
||||||
|
|
||||||
|
if i == n { |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return n, nil |
||||||
|
} |
||||||
|
|
||||||
|
func EpollCreate(size int) (fd int, err error) { |
||||||
|
return impl.epollcreate(size) |
||||||
|
} |
||||||
|
|
||||||
|
func EpollCreate1(flag int) (fd int, err error) { |
||||||
|
return impl.epollcreate1(flag) |
||||||
|
} |
||||||
|
|
||||||
|
func EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error) { |
||||||
|
return impl.epollctl(epfd, op, fd, event) |
||||||
|
} |
||||||
|
|
||||||
|
// Because EpollWait mutates events, the caller is expected to coordinate
|
||||||
|
// concurrent access if calling with the same epfd from multiple goroutines.
|
||||||
|
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) { |
||||||
|
return impl.epollwait(epfd, events, msec) |
||||||
|
} |
||||||
@ -0,0 +1,164 @@ |
|||||||
|
// Copyright 2020 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 zos && s390x
|
||||||
|
// +build zos,s390x
|
||||||
|
|
||||||
|
package unix |
||||||
|
|
||||||
|
import ( |
||||||
|
"unsafe" |
||||||
|
) |
||||||
|
|
||||||
|
// This file simulates fstatfs on z/OS using fstatvfs and w_getmntent.
|
||||||
|
|
||||||
|
func Fstatfs(fd int, stat *Statfs_t) (err error) { |
||||||
|
var stat_v Statvfs_t |
||||||
|
err = Fstatvfs(fd, &stat_v) |
||||||
|
if err == nil { |
||||||
|
// populate stat
|
||||||
|
stat.Type = 0 |
||||||
|
stat.Bsize = stat_v.Bsize |
||||||
|
stat.Blocks = stat_v.Blocks |
||||||
|
stat.Bfree = stat_v.Bfree |
||||||
|
stat.Bavail = stat_v.Bavail |
||||||
|
stat.Files = stat_v.Files |
||||||
|
stat.Ffree = stat_v.Ffree |
||||||
|
stat.Fsid = stat_v.Fsid |
||||||
|
stat.Namelen = stat_v.Namemax |
||||||
|
stat.Frsize = stat_v.Frsize |
||||||
|
stat.Flags = stat_v.Flag |
||||||
|
for passn := 0; passn < 5; passn++ { |
||||||
|
switch passn { |
||||||
|
case 0: |
||||||
|
err = tryGetmntent64(stat) |
||||||
|
break |
||||||
|
case 1: |
||||||
|
err = tryGetmntent128(stat) |
||||||
|
break |
||||||
|
case 2: |
||||||
|
err = tryGetmntent256(stat) |
||||||
|
break |
||||||
|
case 3: |
||||||
|
err = tryGetmntent512(stat) |
||||||
|
break |
||||||
|
case 4: |
||||||
|
err = tryGetmntent1024(stat) |
||||||
|
break |
||||||
|
default: |
||||||
|
break |
||||||
|
} |
||||||
|
//proceed to return if: err is nil (found), err is nonnil but not ERANGE (another error occurred)
|
||||||
|
if err == nil || err != nil && err != ERANGE { |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
|
|
||||||
|
func tryGetmntent64(stat *Statfs_t) (err error) { |
||||||
|
var mnt_ent_buffer struct { |
||||||
|
header W_Mnth |
||||||
|
filesys_info [64]W_Mntent |
||||||
|
} |
||||||
|
var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) |
||||||
|
fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = ERANGE //return ERANGE if no match is found in this batch
|
||||||
|
for i := 0; i < fs_count; i++ { |
||||||
|
if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { |
||||||
|
stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) |
||||||
|
err = nil |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
|
|
||||||
|
func tryGetmntent128(stat *Statfs_t) (err error) { |
||||||
|
var mnt_ent_buffer struct { |
||||||
|
header W_Mnth |
||||||
|
filesys_info [128]W_Mntent |
||||||
|
} |
||||||
|
var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) |
||||||
|
fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = ERANGE //return ERANGE if no match is found in this batch
|
||||||
|
for i := 0; i < fs_count; i++ { |
||||||
|
if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { |
||||||
|
stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) |
||||||
|
err = nil |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
|
|
||||||
|
func tryGetmntent256(stat *Statfs_t) (err error) { |
||||||
|
var mnt_ent_buffer struct { |
||||||
|
header W_Mnth |
||||||
|
filesys_info [256]W_Mntent |
||||||
|
} |
||||||
|
var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) |
||||||
|
fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = ERANGE //return ERANGE if no match is found in this batch
|
||||||
|
for i := 0; i < fs_count; i++ { |
||||||
|
if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { |
||||||
|
stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) |
||||||
|
err = nil |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
|
|
||||||
|
func tryGetmntent512(stat *Statfs_t) (err error) { |
||||||
|
var mnt_ent_buffer struct { |
||||||
|
header W_Mnth |
||||||
|
filesys_info [512]W_Mntent |
||||||
|
} |
||||||
|
var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) |
||||||
|
fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = ERANGE //return ERANGE if no match is found in this batch
|
||||||
|
for i := 0; i < fs_count; i++ { |
||||||
|
if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { |
||||||
|
stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) |
||||||
|
err = nil |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
|
|
||||||
|
func tryGetmntent1024(stat *Statfs_t) (err error) { |
||||||
|
var mnt_ent_buffer struct { |
||||||
|
header W_Mnth |
||||||
|
filesys_info [1024]W_Mntent |
||||||
|
} |
||||||
|
var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) |
||||||
|
fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = ERANGE //return ERANGE if no match is found in this batch
|
||||||
|
for i := 0; i < fs_count; i++ { |
||||||
|
if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { |
||||||
|
stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) |
||||||
|
err = nil |
||||||
|
break |
||||||
|
} |
||||||
|
} |
||||||
|
return err |
||||||
|
} |
||||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue