47 lines
2.0 KiB
Python
47 lines
2.0 KiB
Python
load("@hermetic_cc_toolchain//toolchain/private:defs.bzl", "target_structs")
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def declare_toolchains():
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for target_config in target_structs():
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gotarget = target_config.gotarget
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zigtarget = target_config.zigtarget
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# if the toolchain is libc aware, create two variants for it: one that
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# is only selected if libc is not expicitly set and another one that is
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# only selected if the specific libc variant is selected.
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extra_constraints = []
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if hasattr(target_config, "libc_constraint"):
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extra_constraints = ["@zig_sdk//libc:unconstrained"]
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_declare_toolchain(gotarget, zigtarget, target_config.constraint_values + extra_constraints)
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def declare_libc_aware_toolchains():
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for target_config in target_structs():
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gotarget = target_config.gotarget
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zigtarget = target_config.zigtarget
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# if the toolchain is libc aware, create two variants for it: one that
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# is only selected if libc is not expicitly set and another one that is
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# only selected if the specific libc variant is selected.
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if hasattr(target_config, "libc_constraint"):
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_declare_toolchain(gotarget, zigtarget, target_config.constraint_values + [target_config.libc_constraint])
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def _declare_toolchain(gotarget, zigtarget, target_compatible_with):
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# register two kinds of toolchain targets: Go and Zig conventions.
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# Go convention: amd64/arm64, linux/darwin
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native.toolchain(
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name = gotarget,
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exec_compatible_with = None,
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target_compatible_with = target_compatible_with,
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toolchain = "@zig_sdk//:%s_cc" % zigtarget,
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toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
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)
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# Zig convention: x86_64/aarch64, linux/macos
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native.toolchain(
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name = zigtarget,
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exec_compatible_with = None,
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target_compatible_with = target_compatible_with,
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toolchain = "@zig_sdk//:%s_cc" % zigtarget,
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toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
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)
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