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unix: change Setrlimit/Prlimit to always call syscall functions

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As of Go 1.21 syscall.Setrlimit and syscall.prlimit can affect
starting a new process, by restoring the original NOFILE rlimit.
That is recorded locally in the syscall package, so just always
call the syscall functions.

For golang/go#46279

Change-Id: I2f3dafe5562a7dde1297bad6f5d34a80af5d620b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/476695
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Ian Lance Taylor
2023-03-15 21:12:13 +00:00
committed by Gopher Robot
parent 494aa493cc
commit ff18efa0a3
72 changed files with 17 additions and 618 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/syscall_linux_mipsx.go
-27
View File
@@ -151,33 +151,6 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
return
}
//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
func Setrlimit(resource int, rlim *Rlimit) (err error) {
err = Prlimit(0, resource, rlim, nil)
if err != ENOSYS {
return err
}
rl := rlimit32{}
if rlim.Cur == rlimInf64 {
rl.Cur = rlimInf32
} else if rlim.Cur < uint64(rlimInf32) {
rl.Cur = uint32(rlim.Cur)
} else {
return EINVAL
}
if rlim.Max == rlimInf64 {
rl.Max = rlimInf32
} else if rlim.Max < uint64(rlimInf32) {
rl.Max = uint32(rlim.Max)
} else {
return EINVAL
}
return setrlimit(resource, &rl)
}
func (r *PtraceRegs) PC() uint64 { return r.Epc }
func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc }