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syscall: implement pipe() on linux/mips

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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 work on kernels <2.6.27 when pipe2() was introduced.

Change-Id: I65dfbd2a02b64e777a8eb13013d718e356521be6
GitHub-Last-Rev: c483a06168
GitHub-Pull-Request: golang/go#26608
Reviewed-on: https://go-review.googlesource.com/125915
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Vladimir Stefanovic <vladimir.stefanovic@mips.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
David Wimmer 2018-07-25 19:16:07 +00:00 • committed by Ian Lance Taylor
parent e5b13401c6
commit bd98a81dc2
3 changed files with 27 additions and 4 deletions
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7
src/syscall/syscall_linux_mipsx.go
View file

@ -119,14 +119,13 @@ func Pipe2(p []int, flags int) (err error) {
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
}