unix: implement pipe() on linux/mips
Change the Pipe() function to use the pipe() syscall (which has a unique
calling convention on linux/mips) instead of using pipe2(). This allows
it to work on kernels <2.6.27 when pipe2() was introduced.
Change-Id: I088886e66b594232869d8b88c6e1a630c76188a3
Reviewed-on: https://go-review.googlesource.com/126176
Reviewed-by: Vladimir Stefanovic <vladimir.stefanovic@mips.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/unix/syscall_linux_mipsx.go b/unix/syscall_linux_mipsx.go
index 0e05924..99e0e99 100644
--- a/unix/syscall_linux_mipsx.go
+++ b/unix/syscall_linux_mipsx.go
@@ -124,14 +124,13 @@
return
}
+//sysnb pipe() (p1 int, p2 int, err error)
+
func Pipe(p []int) (err error) {
if len(p) != 2 {
return EINVAL
}
- var pp [2]_C_int
- err = pipe2(&pp, 0)
- p[0] = int(pp[0])
- p[1] = int(pp[1])
+ p[0], p[1], err = pipe()
return
}
diff --git a/unix/zsyscall_linux_mips.go b/unix/zsyscall_linux_mips.go
index e761705..ac3b8f8 100644
--- a/unix/zsyscall_linux_mips.go
+++ b/unix/zsyscall_linux_mips.go
@@ -2137,6 +2137,18 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func pipe() (p1 int, p2 int, err error) {
+ r0, r1, e1 := RawSyscall(SYS_PIPE, 0, 0, 0)
+ p1 = int(r0)
+ p2 = int(r1)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) {
r0, _, e1 := Syscall6(SYS_MMAP2, uintptr(addr), uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(pageOffset))
xaddr = uintptr(r0)
diff --git a/unix/zsyscall_linux_mipsle.go b/unix/zsyscall_linux_mipsle.go
index f6e4518..62a71ad 100644
--- a/unix/zsyscall_linux_mipsle.go
+++ b/unix/zsyscall_linux_mipsle.go
@@ -2137,6 +2137,18 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func pipe() (p1 int, p2 int, err error) {
+ r0, r1, e1 := RawSyscall(SYS_PIPE, 0, 0, 0)
+ p1 = int(r0)
+ p2 = int(r1)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) {
r0, _, e1 := Syscall6(SYS_MMAP2, uintptr(addr), uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(pageOffset))
xaddr = uintptr(r0)
