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net: adjust build tags for darwin libc calls

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Support for direct libc calls was added in CL 446178 but the build
tags weren't quite activating it when cgo was not enabled. Adjust them
and add a new supporting file for darwin.

This should use the new direct libc calls with both CGO_ENABLED=0 and
CGO_ENABLED=1 when building for darwin.

Updates #12524

Change-Id: Ieee4b298dee13f389ed3a63c0a4a3a18c9180163
Reviewed-on: https://go-review.googlesource.com/c/go/+/448020
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Dan Peterson <danp@danp.net>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Dan Peterson 2022-11-06 17:03:00 -04:00 committed by Gopher Robot
parent 969bea8d59
commit e7422b0591
8 changed files with 17 additions and 8 deletions
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2
src/net/cgo_bsd.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
//go:build cgo && !netgo && (darwin || dragonfly || freebsd) //go:build cgo && !netgo && (dragonfly || freebsd)
package net package net

9
src/net/cgo_darwin.go Normal file
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@ -0,0 +1,9 @@
// Copyright 2022 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 net
import "internal/syscall/unix"
const cgoAddrInfoFlags = (unix.AI_CANONNAME | unix.AI_V4MAPPED | unix.AI_ALL) & unix.AI_MASK

2
src/net/cgo_stub.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
//go:build !cgo || netgo //go:build (!cgo && !darwin) || netgo
package net package net

2
src/net/cgo_unix.go
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@ -7,7 +7,7 @@
// Instead of C.foo it uses _C_foo, which is defined in either // Instead of C.foo it uses _C_foo, which is defined in either
// cgo_unix_cgo.go or cgo_unix_syscall.go // cgo_unix_cgo.go or cgo_unix_syscall.go
//go:build cgo && !netgo && unix //go:build !netgo && ((cgo && unix) || darwin)
package net package net

2
src/net/cgo_unix_syscall.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
//go:build cgo && !netgo && darwin //go:build !netgo && darwin
package net package net

2
src/net/cgo_unix_test.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
//go:build cgo && !netgo && unix //go:build (cgo || darwin) && !netgo && unix
package net package net

4
src/net/netgo.go
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@ -4,9 +4,9 @@
// Default netGo to true if the netgo build tag is being used, or the // Default netGo to true if the netgo build tag is being used, or the
// C library DNS routines are not available. Note that the C library // C library DNS routines are not available. Note that the C library
// routines are always available on Windows. // routines are always available on Darwin and Windows.
//go:build netgo || (!cgo && !windows) //go:build netgo || (!cgo && !darwin && !windows)
package net package net

2
src/net/netgo_unix_test.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
//go:build (!cgo || netgo) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris) //go:build (!cgo || netgo) && (dragonfly || freebsd || linux || netbsd || openbsd || solaris)
package net package net