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package archutil
import (
"sort"
"strings"
"sync"
"time"
"github.com/containerd/platforms"
"github.com/moby/buildkit/util/bklog"
ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
)
var CacheMaxAge = 20 * time.Second
var (
mu sync.Mutex
arr []ocispecs.Platform
lastRefresh time.Time
)
func SupportedPlatforms(noCache bool) []ocispecs.Platform {
mu.Lock()
defer mu.Unlock()
if arr != nil && (!noCache || CacheMaxAge < 0 || time.Since(lastRefresh) < CacheMaxAge) {
return arr
}
defer func() { lastRefresh = time.Now() }()
def := nativePlatform()
arr = append([]ocispecs.Platform{}, def)
if def.OS != "linux" {
return arr
}
if variant, err := amd64Supported(); err == nil {
p := "amd64"
if def.Architecture != p {
arr = append(arr, linux(p))
}
for _, v := range amd64vector(variant) {
p := linux(p)
p.Variant = v
arr = append(arr, p)
}
}
if p := "arm64"; def.Architecture != p {
if _, err := arm64Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "riscv64"; def.Architecture != p {
if _, err := riscv64Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "ppc64"; def.Architecture != p {
if _, err := ppc64Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "ppc64le"; def.Architecture != p {
if _, err := ppc64leSupported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "s390x"; def.Architecture != p {
if _, err := s390xSupported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "386"; def.Architecture != p {
if _, err := i386Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "mips64le"; def.Architecture != p {
if _, err := mips64leSupported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "mips64"; def.Architecture != p {
if _, err := mips64Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "loong64"; def.Architecture != p {
if _, err := loong64Supported(); err == nil {
arr = append(arr, linux(p))
}
}
if p := "arm"; def.Architecture != p {
if _, err := armSupported(); err == nil {
p := linux("arm")
p.Variant = "v6"
arr = append(arr, linux("arm"), p)
}
} else if def.Variant == "" {
p := linux("arm")
p.Variant = "v6"
arr = append(arr, p)
}
return arr
}
// WarnIfUnsupported validates the platforms and show warning message if there is,
// the end user could fix the issue based on those warning, and thus no need to drop
// the platform from the candidates.
func WarnIfUnsupported(pfs []ocispecs.Platform) {
def := nativePlatform()
for _, p := range pfs {
if p.Architecture != def.Architecture {
if p.Architecture == "amd64" {
if _, err := amd64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "arm64" {
if _, err := arm64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "riscv64" {
if _, err := riscv64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "ppc64" {
if _, err := ppc64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "ppc64le" {
if _, err := ppc64leSupported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "s390x" {
if _, err := s390xSupported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "386" {
if _, err := i386Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "mips64le" {
if _, err := mips64leSupported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "mips64" {
if _, err := mips64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "loong64" {
if _, err := loong64Supported(); err != nil {
printPlatformWarning(p, err)
}
}
if p.Architecture == "arm" {
if _, err := armSupported(); err != nil {
printPlatformWarning(p, err)
}
}
}
}
}
func nativePlatform() ocispecs.Platform {
return platforms.Normalize(platforms.DefaultSpec())
}
func linux(arch string) ocispecs.Platform {
return ocispecs.Platform{
OS: "linux",
Architecture: arch,
}
}
func amd64vector(v string) (out []string) {
switch v {
case "v4":
out = append(out, "v4")
fallthrough
case "v3":
out = append(out, "v3")
fallthrough
case "v2":
out = append(out, "v2")
}
sort.Strings(out)
return
}
func printPlatformWarning(p ocispecs.Platform, err error) {
if strings.Contains(err.Error(), "exec format error") {
bklog.L.Warnf("platform %s cannot pass the validation, kernel support for miscellaneous binary may have not enabled.", platforms.Format(p))
} else if strings.Contains(err.Error(), "no such file or directory") {
bklog.L.Warnf("platforms %s cannot pass the validation, '-F' flag might have not set for 'archutil'.", platforms.Format(p))
} else {
bklog.L.Warnf("platforms %s cannot pass the validation: %s", platforms.Format(p), err.Error())
}
}
|
