xref: /aosp_15_r20/external/bazelbuild-rules_go/go/private/platforms.bzl (revision 9bb1b549b6a84214c53be0924760be030e66b93a) 
1# Copyright 2019 The Bazel Authors. All rights reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#    http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15# platforms.bzl defines PLATFORMS, a table that describes each possible
16# target platform. This table is used to generate config_settings,
17# constraint_values, platforms, and toolchains.
18
19BAZEL_GOOS_CONSTRAINTS = {
20    "android": "@platforms//os:android",
21    "darwin": "@platforms//os:osx",
22    "freebsd": "@platforms//os:freebsd",
23    "ios": "@platforms//os:ios",
24    "linux": "@platforms//os:linux",
25    "windows": "@platforms//os:windows",
26}
27
28BAZEL_GOARCH_CONSTRAINTS = {
29    "386": "@platforms//cpu:x86_32",
30    "amd64": "@platforms//cpu:x86_64",
31    "arm": "@platforms//cpu:arm",
32    "arm64": "@platforms//cpu:aarch64",
33    "ppc64": "@platforms//cpu:ppc",
34    "ppc64le": "@platforms//cpu:ppc",
35    "s390x": "@platforms//cpu:s390x",
36}
37
38GOOS_GOARCH = (
39    ("aix", "ppc64"),
40    ("android", "386"),
41    ("android", "amd64"),
42    ("android", "arm"),
43    ("android", "arm64"),
44    ("darwin", "386"),
45    ("darwin", "amd64"),
46    ("darwin", "arm"),
47    ("darwin", "arm64"),
48    ("dragonfly", "amd64"),
49    ("freebsd", "386"),
50    ("freebsd", "amd64"),
51    ("freebsd", "arm"),
52    ("freebsd", "arm64"),
53    ("illumos", "amd64"),
54    ("ios", "amd64"),
55    ("ios", "arm64"),
56    ("js", "wasm"),
57    ("linux", "386"),
58    ("linux", "amd64"),
59    ("linux", "arm"),
60    ("linux", "arm64"),
61    ("linux", "mips"),
62    ("linux", "mips64"),
63    ("linux", "mips64le"),
64    ("linux", "mipsle"),
65    ("linux", "ppc64"),
66    ("linux", "ppc64le"),
67    ("linux", "riscv64"),
68    ("linux", "s390x"),
69    ("nacl", "386"),
70    ("nacl", "amd64p32"),
71    ("nacl", "arm"),
72    ("netbsd", "386"),
73    ("netbsd", "amd64"),
74    ("netbsd", "arm"),
75    ("netbsd", "arm64"),
76    ("openbsd", "386"),
77    ("openbsd", "amd64"),
78    ("openbsd", "arm"),
79    ("openbsd", "arm64"),
80    ("plan9", "386"),
81    ("plan9", "amd64"),
82    ("plan9", "arm"),
83    ("solaris", "amd64"),
84    ("windows", "386"),
85    ("windows", "amd64"),
86    ("windows", "arm"),
87    ("windows", "arm64"),
88)
89
90RACE_GOOS_GOARCH = {
91    ("darwin", "amd64"): None,
92    ("freebsd", "amd64"): None,
93    ("linux", "amd64"): None,
94    ("windows", "amd64"): None,
95}
96
97MSAN_GOOS_GOARCH = {
98    ("linux", "amd64"): None,
99}
100
101CGO_GOOS_GOARCH = {
102    ("aix", "ppc64"): None,
103    ("android", "386"): None,
104    ("android", "amd64"): None,
105    ("android", "arm"): None,
106    ("android", "arm64"): None,
107    ("darwin", "amd64"): None,
108    ("darwin", "arm"): None,
109    ("darwin", "arm64"): None,
110    ("dragonfly", "amd64"): None,
111    ("freebsd", "386"): None,
112    ("freebsd", "amd64"): None,
113    ("freebsd", "arm"): None,
114    ("illumos", "amd64"): None,
115    ("ios", "amd64"): None,
116    ("ios", "arm64"): None,
117    ("linux", "386"): None,
118    ("linux", "amd64"): None,
119    ("linux", "arm"): None,
120    ("linux", "arm64"): None,
121    ("linux", "mips"): None,
122    ("linux", "mips64"): None,
123    ("linux", "mips64le"): None,
124    ("linux", "mipsle"): None,
125    ("linux", "ppc64le"): None,
126    ("linux", "riscv64"): None,
127    ("linux", "s390x"): None,
128    ("linux", "sparc64"): None,
129    ("netbsd", "386"): None,
130    ("netbsd", "amd64"): None,
131    ("netbsd", "arm"): None,
132    ("netbsd", "arm64"): None,
133    ("openbsd", "386"): None,
134    ("openbsd", "amd64"): None,
135    ("openbsd", "arm"): None,
136    ("openbsd", "arm64"): None,
137    ("solaris", "amd64"): None,
138    ("windows", "386"): None,
139    ("windows", "amd64"): None,
140    ("windows", "arm64"): None,
141}
142
143def _generate_constraints(names, bazel_constraints):
144    return {
145        name: bazel_constraints.get(name, "@io_bazel_rules_go//go/toolchain:" + name)
146        for name in names
147    }
148
149GOOS_CONSTRAINTS = _generate_constraints([p[0] for p in GOOS_GOARCH], BAZEL_GOOS_CONSTRAINTS)
150GOARCH_CONSTRAINTS = _generate_constraints([p[1] for p in GOOS_GOARCH], BAZEL_GOARCH_CONSTRAINTS)
151
152def _generate_platforms():
153    platforms = []
154    for goos, goarch in GOOS_GOARCH:
155        constraints = [
156            GOOS_CONSTRAINTS[goos],
157            GOARCH_CONSTRAINTS[goarch],
158        ]
159        platforms.append(struct(
160            name = goos + "_" + goarch,
161            goos = goos,
162            goarch = goarch,
163            constraints = constraints + ["@io_bazel_rules_go//go/toolchain:cgo_off"],
164            cgo = False,
165        ))
166        if (goos, goarch) in CGO_GOOS_GOARCH:
167            # On Windows, Bazel will pick an MSVC toolchain unless we
168            # specifically request mingw or msys.
169            mingw = ["@bazel_tools//tools/cpp:mingw"] if goos == "windows" else []
170            platforms.append(struct(
171                name = goos + "_" + goarch + "_cgo",
172                goos = goos,
173                goarch = goarch,
174                constraints = constraints + ["@io_bazel_rules_go//go/toolchain:cgo_on"] + mingw,
175                cgo = True,
176            ))
177
178    return platforms
179
180PLATFORMS = _generate_platforms()
181