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checkescape: Treat syscall.RawSyscall() as though its arguments do not escape.

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...as we do for unix.RawSyscall.

PiperOrigin-RevId: 452181471
This commit is contained in:
Nicolas Lacasse
2022-05-31 17:55:32 -07:00
committed by gVisor bot
parent c24bef7b80
commit ad3f841aad
1 changed files with 7 additions and 4 deletions
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tools/checkescape/checkescape.go
+7 -4
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@@ -747,10 +747,13 @@ func run(pass *analysis.Pass, binary io.Reader) (interface{}, error) {
// Recursively collect information.
var funcEscapes Escapes
if !pass.ImportObjectFact(x.Object(), &funcEscapes) {
// If this is the unix package, and the
// function is RawSyscall, we can also
// ignore this case.
if x.Pkg != nil && x.Pkg.Pkg.Name() == "unix" && (x.Name() == "RawSyscall" || x.Name() == "RawSyscall6") {
// If this is the unix or syscall
// package, and the function is
// RawSyscall, we can also ignore this
// case.
pkgIsUnixOrSyscall := x.Pkg != nil && (x.Pkg.Pkg.Name() == "unix" || x.Pkg.Pkg.Name() == "syscall")
methodIsRawSyscall := x.Name() == "RawSyscall" || x.Name() == "RawSyscall6"
if pkgIsUnixOrSyscall && methodIsRawSyscall {
return
}