DefaultGOEXPERIMENT is the embedded default GOEXPERIMENT string. It is not guaranteed to be canonical.
const DefaultGOEXPERIMENT = defaultGOEXPERIMENT
var (
GOROOT = os.Getenv("GOROOT") // cached for efficiency
GOARCH = envOr("GOARCH", defaultGOARCH)
GOOS = envOr("GOOS", defaultGOOS)
GO386 = envOr("GO386", defaultGO386)
GOAMD64 = goamd64()
GOARM = goarm()
GOARM64 = goarm64()
GOMIPS = gomips()
GOMIPS64 = gomips64()
GOPPC64 = goppc64()
GORISCV64 = goriscv64()
GOWASM = gowasm()
ToolTags = toolTags()
GO_LDSO = defaultGO_LDSO
Version = version
)
Error is one of the errors found (if any) in the build configuration.
var Error error
FramePointerEnabled enables the use of platform conventions for saving frame pointers.
This used to be an experiment, but now it's always enabled on platforms that support it.
Note: must agree with runtime.framepointer_enabled.
var FramePointerEnabled = GOARCH == "amd64" || GOARCH == "arm64"
func Check()
Check exits the program with a fatal error if Error is non-nil.
func GOGOARCH() (name, value string)
GOGOARCH returns the name and value of the GO$GOARCH setting. For example, if GOARCH is "amd64" it might return "GOAMD64", "v2".
func Getgoextlinkenabled() string
ExperimentFlags represents a set of GOEXPERIMENT flags relative to a baseline (platform-default) experiment configuration.
type ExperimentFlags struct {
goexperiment.Flags
// contains filtered or unexported fields
}
Experiment contains the toolchain experiments enabled for the current build.
(This is not necessarily the set of experiments the compiler itself was built with.)
experimentBaseline specifies the experiment flags that are enabled by default in the current toolchain. This is, in effect, the "control" configuration and any variation from this is an experiment.
var Experiment ExperimentFlags = func() ExperimentFlags { flags, err := ParseGOEXPERIMENT(GOOS, GOARCH, envOr("GOEXPERIMENT", defaultGOEXPERIMENT)) if err != nil { Error = err return ExperimentFlags{} } return *flags }()
func ParseGOEXPERIMENT(goos, goarch, goexp string) (*ExperimentFlags, error)
ParseGOEXPERIMENT parses a (GOOS, GOARCH, GOEXPERIMENT) configuration tuple and returns the enabled and baseline experiment flag sets.
TODO(mdempsky): Move to internal/goexperiment.
func (exp *ExperimentFlags) All() []string
All returns a list of all experiment settings. Disabled experiments appear in the list prefixed by "no".
func (exp *ExperimentFlags) Enabled() []string
Enabled returns a list of enabled experiments, as lower-cased experiment names.
func (exp *ExperimentFlags) String() string
String returns the canonical GOEXPERIMENT string to enable this experiment configuration. (Experiments in the same state as in the baseline are elided.)
type Goarm64Features struct {
Version string
// Large Systems Extension
LSE bool
// ARM v8.0 Cryptographic Extension. It includes the following features:
// * FEAT_AES, which includes the AESD and AESE instructions.
// * FEAT_PMULL, which includes the PMULL, PMULL2 instructions.
// * FEAT_SHA1, which includes the SHA1* instructions.
// * FEAT_SHA256, which includes the SHA256* instructions.
Crypto bool
}
func ParseGoarm64(v string) (g Goarm64Features, e error)
func (g Goarm64Features) String() string
func (g Goarm64Features) Supports(s string) bool
Returns true if g supports giving ARM64 ISA Note that this function doesn't accept / test suffixes (like ",lse" or ",crypto")