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Change-Id: I23851c3d47c5727fe9ccf6b318693ca30c872409
This commit is contained in:
qiulaidongfeng 2024-05-10 06:07:31 +08:00
parent 4ece9ceb75
commit 6543df4784
1 changed files with 15 additions and 15 deletions
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30
src/cmd/go/internal/cfg/cfg.go
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@ -13,7 +13,6 @@ import (
"go/build" "go/build"
"internal/buildcfg" "internal/buildcfg"
"internal/cfg" "internal/cfg"
"internal/platform"
"io" "io"
"os" "os"
"path/filepath" "path/filepath"
@ -128,14 +127,16 @@ func defaultContext() build.Context {
ctxt.ToolTags = save ctxt.ToolTags = save
// The go/build rule for whether cgo is enabled is: // The go/build rule for whether cgo is enabled is:
// 1. If $CGO_ENABLED is set, respect it. // 1. If $CGO_ENABLED is set, respect it.
// 2. Otherwise, if this is a cross-compile, disable cgo. // 2. Otherwise, if this is a cross-compile, disable cgo.
// 3. Otherwise, use built-in default for GOOS/GOARCH. // 3. Otherwise, use built-in default for GOOS/GOARCH.
//
// Recreate that logic here with the new GOOS/GOARCH setting. // Recreate that logic here with the new GOOS/GOARCH setting.
if v := Getenv("CGO_ENABLED"); v == "0" || v == "1" { // We need to run steps 2 and 3 to determine what the default value
ctxt.CgoEnabled = v[0] == '1' // of CgoEnabled would be for computing CGOChanged.
} else if ctxt.GOOS != runtime.GOOS || ctxt.GOARCH != runtime.GOARCH { defaultCgoEnabled := ctxt.CgoEnabled
ctxt.CgoEnabled = false if ctxt.GOOS != runtime.GOOS || ctxt.GOARCH != runtime.GOARCH {
defaultCgoEnabled = false
} else { } else {
// Use built-in default cgo setting for GOOS/GOARCH. // Use built-in default cgo setting for GOOS/GOARCH.
// Note that ctxt.GOOS/GOARCH are derived from the preference list // Note that ctxt.GOOS/GOARCH are derived from the preference list
@ -162,17 +163,16 @@ func defaultContext() build.Context {
if os.Getenv("CC") == "" { if os.Getenv("CC") == "" {
cc := DefaultCC(ctxt.GOOS, ctxt.GOARCH) cc := DefaultCC(ctxt.GOOS, ctxt.GOARCH)
if _, err := LookPath(cc); err != nil { if _, err := LookPath(cc); err != nil {
ctxt.CgoEnabled = false defaultCgoEnabled = false
} }
} }
} }
} }
CGOChanged = ctxt.CgoEnabled != func() bool { ctxt.CgoEnabled = defaultCgoEnabled
if runtime.GOARCH == ctxt.GOARCH && runtime.GOOS == ctxt.GOOS { if v := Getenv("CGO_ENABLED"); v == "0" || v == "1" {
return platform.CgoSupported(ctxt.GOOS, ctxt.GOARCH) ctxt.CgoEnabled = v[0] == '1'
} }
return false CGOChanged = ctxt.CgoEnabled != defaultCgoEnabled
}()
ctxt.OpenFile = func(path string) (io.ReadCloser, error) { ctxt.OpenFile = func(path string) (io.ReadCloser, error) {
return fsys.Open(path) return fsys.Open(path)