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Add -buildmode=pie for supported platform #24964

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Apr 12, 2021
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29 changes: 29 additions & 0 deletions dev-tools/mage/build.go
Original file line number Diff line number Diff line change
Expand Up @@ -62,9 +62,38 @@ func DefaultBuildArgs() BuildArgs {
if versionQualified {
args.Vars[elasticBeatsModulePath+"/libbeat/version.qualifier"] = "{{ .Qualifier }}"
}

if positionIndependendCodeSupported() {
args.ExtraFlags = append(args.ExtraFlags, "-buildmode", "pie")
}

return args
}

// positionIndependendCodeSupported checks if the target platform support position independen code (or ASLR).
//
// The list of supported platforms is compiled based on the Go release notes: https://golang.org/doc/devel/release.html
// The list has been updated according to the Go version: 1.16
func positionIndependendCodeSupported() bool {
return oneOf(Platform.GOOS, "darwin") ||
(Platform.GOOS == "linux" && oneOf(Platform.GOARCH, "riscv64", "amd64", "arm", "arm64", "ppc64le", "386")) ||
(Platform.GOOS == "aix" && Platform.GOARCH == "ppc64") ||

// Windows 32bit supports ASLR, but Windows Server 2003 and earlier do not.
// According to the support matrix (https://www.elastic.co/support/matrix), these old versions
// are not supported.
(Platform.GOOS == "windows")
}

func oneOf(value string, lst ...string) bool {
for _, other := range lst {
if other == value {
return true
}
}
return false
}

// DefaultGolangCrossBuildArgs returns the default BuildArgs for use in
// cross-builds.
func DefaultGolangCrossBuildArgs() BuildArgs {
Expand Down