internal/socket: add ppc system call definitions, for use with gccgo
Add system call definitions for 32-bit PowerPC (ppc). These are
expected to be used with gccgo, as gc does not have a suitable code
generator.
* Define the system call numbers for recvmmsg() and sendmmsg()
* Enable the 32-bit definitions of cmsghdr, iovec, and msghdr structures
* Add the structure definitions generated by godefs
This has been tested with a program that listens for UDP connections
and then sends back multiple messages with PacketConn.WriteBatch.
Fixes golang/go#45677
Change-Id: Idd7bbcfcea373db674759d3cb86aab60312403dc
GitHub-Last-Rev: dfc1dfce613590f7f5c10bb6a88354e7d1dcb3d5
GitHub-Pull-Request: golang/net#101
Reviewed-on: https://go-review.googlesource.com/c/net/+/312710
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/internal/socket/cmsghdr_linux_32bit.go b/internal/socket/cmsghdr_linux_32bit.go
index 623cf30..4936e8a 100644
--- a/internal/socket/cmsghdr_linux_32bit.go
+++ b/internal/socket/cmsghdr_linux_32bit.go
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build (arm || mips || mipsle || 386) && linux
-// +build arm mips mipsle 386
+//go:build (arm || mips || mipsle || 386 || ppc) && linux
+// +build arm mips mipsle 386 ppc
// +build linux
package socket
diff --git a/internal/socket/iovec_32bit.go b/internal/socket/iovec_32bit.go
index 1f42d03..2b8fbb3 100644
--- a/internal/socket/iovec_32bit.go
+++ b/internal/socket/iovec_32bit.go
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build (arm || mips || mipsle || 386) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd)
-// +build arm mips mipsle 386
+//go:build (arm || mips || mipsle || 386 || ppc) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd)
+// +build arm mips mipsle 386 ppc
// +build darwin dragonfly freebsd linux netbsd openbsd
package socket
diff --git a/internal/socket/msghdr_linux_32bit.go b/internal/socket/msghdr_linux_32bit.go
index 2e09e26..b4658fb 100644
--- a/internal/socket/msghdr_linux_32bit.go
+++ b/internal/socket/msghdr_linux_32bit.go
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build (arm || mips || mipsle || 386) && linux
-// +build arm mips mipsle 386
+//go:build (arm || mips || mipsle || 386 || ppc) && linux
+// +build arm mips mipsle 386 ppc
// +build linux
package socket
diff --git a/internal/socket/sys_linux_ppc.go b/internal/socket/sys_linux_ppc.go
new file mode 100644
index 0000000..90cfaa9
--- /dev/null
+++ b/internal/socket/sys_linux_ppc.go
@@ -0,0 +1,10 @@
+// Copyright 2021 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 socket
+
+const (
+ sysRECVMMSG = 0x157
+ sysSENDMMSG = 0x15d
+)
diff --git a/internal/socket/zsys_linux_ppc.go b/internal/socket/zsys_linux_ppc.go
new file mode 100644
index 0000000..59b71da
--- /dev/null
+++ b/internal/socket/zsys_linux_ppc.go
@@ -0,0 +1,35 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_linux.go
+
+package socket
+
+type iovec struct {
+ Base *byte
+ Len uint32
+}
+
+type msghdr struct {
+ Name *byte
+ Namelen uint32
+ Iov *iovec
+ Iovlen uint32
+ Control *byte
+ Controllen uint32
+ Flags int32
+}
+
+type mmsghdr struct {
+ Hdr msghdr
+ Len uint32
+}
+
+type cmsghdr struct {
+ Len uint32
+ Level int32
+ Type int32
+}
+
+const (
+ sizeofIovec = 0x8
+ sizeofMsghdr = 0x1c
+)
