supported.go

     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":
    17  		return goarch == "amd64" || goarch == "arm64"
    18  	case "freebsd", "netbsd", "openbsd", "windows":
    19  		return goarch == "amd64"
    20  	default:
    21  		return false
    22  	}
    23  }
    24  
    25  // MSanSupported reports whether goos/goarch supports the memory
    26  // sanitizer option.
    27  // There is a copy of this function in misc/cgo/testsanitizers/cc_test.go.
    28  func MSanSupported(goos, goarch string) bool {
    29  	switch goos {
    30  	case "linux":
    31  		return goarch == "amd64" || goarch == "arm64"
    32  	default:
    33  		return false
    34  	}
    35  }
    36  
    37  // ASanSupported reports whether goos/goarch supports the address
    38  // sanitizer option.
    39  // There is a copy of this function in misc/cgo/testsanitizers/cc_test.go.
    40  func ASanSupported(goos, goarch string) bool {
    41  	switch goos {
    42  	case "linux":
    43  		return goarch == "arm64" || goarch == "amd64"
    44  	default:
    45  		return false
    46  	}
    47  }
    48  
    49  // FuzzSupported reports whether goos/goarch supports fuzzing
    50  // ('go test -fuzz=.').
    51  func FuzzSupported(goos, goarch string) bool {
    52  	switch goos {
    53  	case "darwin", "freebsd", "linux", "windows":
    54  		return true
    55  	default:
    56  		return false
    57  	}
    58  }
    59  
    60  // FuzzInstrumented reports whether fuzzing on goos/goarch uses coverage
    61  // instrumentation. (FuzzInstrumented implies FuzzSupported.)
    62  func FuzzInstrumented(goos, goarch string) bool {
    63  	switch goarch {
    64  	case "amd64", "arm64":
    65  		// TODO(#14565): support more architectures.
    66  		return FuzzSupported(goos, goarch)
    67  	default:
    68  		return false
    69  	}
    70  }
    71  
    72  // MustLinkExternal reports whether goos/goarch requires external linking.
    73  // (This is the opposite of internal/testenv.CanInternalLink. Keep them in sync.)
    74  func MustLinkExternal(goos, goarch string) bool {
    75  	switch goos {
    76  	case "android":
    77  		if goarch != "arm64" {
    78  			return true
    79  		}
    80  	case "ios":
    81  		if goarch == "arm64" {
    82  			return true
    83  		}
    84  	}
    85  	return false
    86  }
    87  
    88  // BuildModeSupported reports whether goos/goarch supports the given build mode
    89  // using the given compiler.
    90  func BuildModeSupported(compiler, buildmode, goos, goarch string) bool {
    91  	if compiler == "gccgo" {
    92  		return true
    93  	}
    94  
    95  	platform := goos + "/" + goarch
    96  
    97  	switch buildmode {
    98  	case "archive":
    99  		return true
   100  
   101  	case "c-archive":
   102  		// TODO(bcmills): This seems dubious.
   103  		// Do we really support c-archive mode on js/wasm‽
   104  		return platform != "linux/ppc64"
   105  
   106  	case "c-shared":
   107  		switch platform {
   108  		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/ppc64le", "linux/riscv64", "linux/s390x",
   109  			"android/amd64", "android/arm", "android/arm64", "android/386",
   110  			"freebsd/amd64",
   111  			"darwin/amd64", "darwin/arm64",
   112  			"windows/amd64", "windows/386", "windows/arm64":
   113  			return true
   114  		}
   115  		return false
   116  
   117  	case "default":
   118  		return true
   119  
   120  	case "exe":
   121  		return true
   122  
   123  	case "pie":
   124  		switch platform {
   125  		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/riscv64", "linux/s390x",
   126  			"android/amd64", "android/arm", "android/arm64", "android/386",
   127  			"freebsd/amd64",
   128  			"darwin/amd64", "darwin/arm64",
   129  			"ios/amd64", "ios/arm64",
   130  			"aix/ppc64",
   131  			"windows/386", "windows/amd64", "windows/arm":
   132  			return true
   133  		}
   134  		return false
   135  
   136  	case "shared":
   137  		switch platform {
   138  		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x":
   139  			return true
   140  		}
   141  		return false
   142  
   143  	case "plugin":
   144  		switch platform {
   145  		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/s390x", "linux/ppc64le",
   146  			"android/amd64", "android/arm", "android/arm64", "android/386",
   147  			"darwin/amd64", "darwin/arm64",
   148  			"freebsd/amd64":
   149  			return true
   150  		}
   151  		return false
   152  
   153  	default:
   154  		return false
   155  	}
   156  }
   157  
   158  func InternalLinkPIESupported(goos, goarch string) bool {
   159  	switch goos + "/" + goarch {
   160  	case "darwin/amd64", "darwin/arm64",
   161  		"linux/amd64", "linux/arm64", "linux/ppc64le",
   162  		"android/arm64",
   163  		"windows-amd64", "windows-386", "windows-arm":
   164  		return true
   165  	}
   166  	return false
   167  }
   168
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