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| author | Ian Lance Taylor <iant@golang.org> | 2020-04-27 17:43:35 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2020-04-30 03:32:25 +0000 |
| commit | b255c123371caf9238dcc732860a907f3ea744da (patch) | |
| tree | 7ab78669e62f3153e1360e1723623823233279c7 /src/syscall/syscall_linux_arm64.go | |
| parent | 769a1cf7b6b79e747e3a4d886992b2a7e54f33d7 (diff) | |
| download | go-b255c123371caf9238dcc732860a907f3ea744da.tar.xz | |
syscall: on linux-arm64, prefer prlimit to {g,s}etrlimit
Reportedly some Docker images accept the prlimit64 system call,
used by syscall.prlimit, but prohibit the getrlimit and setrlimit
system calls.
Fixes #38604
Change-Id: I91ff9370450b4869098cc8e335bbb7b863060508
Reviewed-on: https://go-review.googlesource.com/c/go/+/230339
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Diffstat (limited to 'src/syscall/syscall_linux_arm64.go')
| -rw-r--r-- | src/syscall/syscall_linux_arm64.go | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/syscall/syscall_linux_arm64.go b/src/syscall/syscall_linux_arm64.go index 6d3b3dfde4..1ad9dd8ea3 100644 --- a/src/syscall/syscall_linux_arm64.go +++ b/src/syscall/syscall_linux_arm64.go @@ -28,7 +28,7 @@ func EpollCreate(size int) (fd int, err error) { //sysnb Getegid() (egid int) //sysnb Geteuid() (euid int) //sysnb Getgid() (gid int) -//sysnb Getrlimit(resource int, rlim *Rlimit) (err error) +//sysnb getrlimit(resource int, rlim *Rlimit) (err error) //sysnb Getuid() (uid int) //sys Listen(s int, n int) (err error) //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 @@ -41,7 +41,7 @@ func EpollCreate(size int) (fd int, err error) { //sysnb Setregid(rgid int, egid int) (err error) //sysnb Setresgid(rgid int, egid int, sgid int) (err error) //sysnb Setresuid(ruid int, euid int, suid int) (err error) -//sysnb Setrlimit(resource int, rlim *Rlimit) (err error) +//sysnb setrlimit(resource int, rlim *Rlimit) (err error) //sysnb Setreuid(ruid int, euid int) (err error) //sys Shutdown(fd int, how int) (err error) //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) @@ -171,6 +171,24 @@ func Pipe2(p []int, flags int) (err error) { return } +// Getrlimit prefers the prlimit64 system call. See issue 38604. +func Getrlimit(resource int, rlim *Rlimit) error { + err := prlimit(0, resource, nil, rlim) + if err != ENOSYS { + return err + } + return getrlimit(resource, rlim) +} + +// Setrlimit prefers the prlimit64 system call. See issue 38604. +func Setrlimit(resource int, rlim *Rlimit) error { + err := prlimit(0, resource, rlim, nil) + if err != ENOSYS { + return err + } + return setrlimit(resource, rlim) +} + func (r *PtraceRegs) PC() uint64 { return r.Pc } func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc } |