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| author | Tobias Klauser <tklauser@distanz.ch> | 2021-09-17 14:25:54 +0200 |
|---|---|---|
| committer | Tobias Klauser <tobias.klauser@gmail.com> | 2021-09-17 20:26:51 +0000 |
| commit | 974b0166d6a7c20b98f7e517e49197bea46fc5e2 (patch) | |
| tree | cce5136afad55d26ac0cc5c0e255ea9e27dbd707 /src/syscall/zsyscall_linux_386.go | |
| parent | 1a49dcb82f1ef0d028f74f4fd955ee01b09b466d (diff) | |
| download | go-974b0166d6a7c20b98f7e517e49197bea46fc5e2.tar.gz go-974b0166d6a7c20b98f7e517e49197bea46fc5e2.zip | |
syscall: implement Pipe using pipe2 syscall on all linux platforms
Most architectures currently already implement Pipe using the pipe2
syscall. Only 386, amd64 and mips{,le} still use the pipe syscall.
However, some systems (e.g. Android seccomp policies) block that
syscall, see #40828 for an example.
The pipe2 syscall was added in Linux kernel version 2.6.27. The minimum
required Linux kernel version for Go 1.18 will be changed to 2.6.32
per #45964 so it is possible to unify the implementation of Pipe using
the pipe2 syscall.
For #45964
Change-Id: I8ed6a391300c95f3107b4ec6b27d320e42fb535b
Reviewed-on: https://go-review.googlesource.com/c/go/+/350530
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/syscall/zsyscall_linux_386.go')
| -rw-r--r-- | src/syscall/zsyscall_linux_386.go | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/src/syscall/zsyscall_linux_386.go b/src/syscall/zsyscall_linux_386.go index ac822d6f7a..a1394d32cb 100644 --- a/src/syscall/zsyscall_linux_386.go +++ b/src/syscall/zsyscall_linux_386.go @@ -76,6 +76,16 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT +func pipe2(p *[2]_C_int, flags int) (err error) { + _, _, e1 := RawSyscall(SYS_PIPE2, uintptr(unsafe.Pointer(p)), uintptr(flags), 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT + func readlinkat(dirfd int, path string, buf []byte) (n int, err error) { var _p0 *byte _p0, err = BytePtrFromString(path) @@ -1048,26 +1058,6 @@ func Munlockall() (err error) { // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT -func pipe(p *[2]_C_int) (err error) { - _, _, e1 := RawSyscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func pipe2(p *[2]_C_int, flags int) (err error) { - _, _, e1 := RawSyscall(SYS_PIPE2, uintptr(unsafe.Pointer(p)), uintptr(flags), 0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - func Dup2(oldfd int, newfd int) (err error) { _, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0) if e1 != 0 { |