github.com/gagliardetto/golang-go@v0.0.0-20201020153340-53909ea70814/cmd/internal/sys/supported.go (about)

     1  // Copyright 2018 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package sys
     6  
     7  // RaceDetectorSupported reports whether goos/goarch supports the race
     8  // detector. There is a copy of this function in cmd/dist/test.go.
     9  // Race detector only supports 48-bit VMA on arm64. But it will always
    10  // return true for arm64, because we don't have VMA size information during
    11  // the compile time.
    12  func RaceDetectorSupported(goos, goarch string) bool {
    13  	switch goos {
    14  	case "linux":
    15  		return goarch == "amd64" || goarch == "ppc64le" || goarch == "arm64"
    16  	case "darwin", "freebsd", "netbsd", "windows":
    17  		return goarch == "amd64"
    18  	default:
    19  		return false
    20  	}
    21  }
    22  
    23  // MSanSupported reports whether goos/goarch supports the memory
    24  // sanitizer option. There is a copy of this function in cmd/dist/test.go.
    25  func MSanSupported(goos, goarch string) bool {
    26  	switch goos {
    27  	case "linux":
    28  		return goarch == "amd64" || goarch == "arm64"
    29  	default:
    30  		return false
    31  	}
    32  }
    33  
    34  // MustLinkExternal reports whether goos/goarch requires external linking.
    35  func MustLinkExternal(goos, goarch string) bool {
    36  	switch goos {
    37  	case "android":
    38  		return true
    39  	case "darwin":
    40  		if goarch == "arm" || goarch == "arm64" {
    41  			return true
    42  		}
    43  	}
    44  	return false
    45  }
    46  
    47  // BuildModeSupported reports whether goos/goarch supports the given build mode
    48  // using the given compiler.
    49  func BuildModeSupported(compiler, buildmode, goos, goarch string) bool {
    50  	if compiler == "gccgo" {
    51  		return true
    52  	}
    53  
    54  	platform := goos + "/" + goarch
    55  
    56  	switch buildmode {
    57  	case "archive":
    58  		return true
    59  
    60  	case "c-archive":
    61  		// TODO(bcmills): This seems dubious.
    62  		// Do we really support c-archive mode on js/wasm‽
    63  		return platform != "linux/ppc64"
    64  
    65  	case "c-shared":
    66  		switch platform {
    67  		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/ppc64le", "linux/s390x",
    68  			"android/amd64", "android/arm", "android/arm64", "android/386",
    69  			"freebsd/amd64",
    70  			"darwin/amd64", "darwin/386",
    71  			"windows/amd64", "windows/386":
    72  			return true
    73  		}
    74  		return false
    75  
    76  	case "default":
    77  		return true
    78  
    79  	case "exe":
    80  		return true
    81  
    82  	case "pie":
    83  		switch platform {
    84  		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x",
    85  			"android/amd64", "android/arm", "android/arm64", "android/386",
    86  			"freebsd/amd64",
    87  			"darwin/amd64",
    88  			"aix/ppc64":
    89  			return true
    90  		}
    91  		return false
    92  
    93  	case "shared":
    94  		switch platform {
    95  		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x":
    96  			return true
    97  		}
    98  		return false
    99  
   100  	case "plugin":
   101  		switch platform {
   102  		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/s390x", "linux/ppc64le",
   103  			"android/amd64", "android/arm", "android/arm64", "android/386",
   104  			"darwin/amd64",
   105  			"freebsd/amd64":
   106  			return true
   107  		}
   108  		return false
   109  
   110  	default:
   111  		return false
   112  	}
   113  }