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hermetic_cc_toolchain/toolchain/platform/defs.bzl

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load("@bazel-zig-cc//toolchain/private:defs.bzl", "LIBCS")
_CPUS = (("x86_64", "amd64"), ("aarch64", "arm64"))
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_OS = {
"linux": ["linux"],
"macos": ["macos", "darwin"],
"windows": ["windows"],
}
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def declare_platforms():
# create @zig_sdk//{os}_{arch}_platform entries with zig and go conventions
for zigcpu, gocpu in _CPUS:
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for bzlos, oss in _OS.items():
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for os in oss:
declare_platform(gocpu, zigcpu, bzlos, os)
def declare_libc_aware_platforms():
# create @zig_sdk//{os}_{arch}_platform entries with zig and go conventions
# with libc specified
for zigcpu, gocpu in _CPUS:
for libc in LIBCS:
declare_platform(
gocpu,
zigcpu,
"linux",
"linux",
suffix = "_{}".format(libc),
extra_constraints = ["@zig_sdk//libc:{}".format(libc)],
)
def declare_platform(gocpu, zigcpu, bzlos, os, suffix = "", extra_constraints = []):
constraint_values = [
"@platforms//os:{}".format(bzlos),
"@platforms//cpu:{}".format(zigcpu),
] + extra_constraints
native.platform(
name = "{os}_{zigcpu}{suffix}".format(os = os, zigcpu = zigcpu, suffix = suffix),
constraint_values = constraint_values,
)
native.platform(
name = "{os}_{gocpu}{suffix}".format(os = os, gocpu = gocpu, suffix = suffix),
constraint_values = constraint_values,
)