motiejus/hermetic_cc_toolchain
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example transitions only change platforms, leave toolchains for WORKSPACE

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This commit is contained in:
Motiejus Jakštys 2022-04-18 12:17:03 +03:00
parent a53170cf82
commit 418b589ed2
4 changed files with 24 additions and 41 deletions
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12
WORKSPACE
View File

@ -50,17 +50,19 @@ load(
zig_toolchains()
register_toolchains(
# if no `--platform` is selected, these toolchains will be used.
# if no `--platform` is specified, these toolchains will be used for
# (linux,darwin)x(amd64,arm64)
"@zig_sdk//toolchain:linux_amd64_gnu.2.19",
"@zig_sdk//toolchain:linux_arm64_gnu.2.28",
"@zig_sdk//toolchain:darwin_amd64",
"@zig_sdk//toolchain:darwin_arm64",
# when a libc-aware platform is selected, these will be used. arm64:
"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.28",
"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
# ditto, amd64:
# amd64 toolchains for libc-aware platforms:
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.19",
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.28",
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.31",
"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
# arm64 toolchains for libc-aware platforms:
"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.28",
"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
)

11
rules/platform.bzl
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@ -2,7 +2,6 @@ def _platform_transition_impl(settings, attr):
_ignore = settings
return {
"//command_line_option:platforms": "@zig_sdk{}".format(attr.platform),
"//command_line_option:extra_toolchains": ["@zig_sdk{}".format(tc) for tc in attr.extra_toolchains],
}
_platform_transition = transition(
@ -10,7 +9,6 @@ _platform_transition = transition(
inputs = [],
outputs = [
"//command_line_option:platforms",
"//command_line_option:extra_toolchains",
],
)
@ -40,16 +38,12 @@ _attrs = {
"platform": attr.string(
doc = "The platform to build the target for.",
),
"extra_toolchains": attr.string_list(
doc = "The toolchains to provide as extra_toolchains.",
),
"_allowlist_function_transition": attr.label(
default = "@bazel_tools//tools/allowlists/function_transition_allowlist",
),
}
# wrap a single exectable and build it for the specified platform passing in
# the extra_toolchains.
# wrap a single exectable and build it for the specified platform.
platform_binary = rule(
implementation = _platform_binary_impl,
cfg = _platform_transition,
@ -57,8 +51,7 @@ platform_binary = rule(
executable = True,
)
# wrap a single test target and build it for the specified platform passing in
# the extra_toolchains.
# wrap a single test target and build it for the specified platform.
platform_test = rule(
implementation = _platform_binary_impl,
cfg = _platform_transition,

10
test/c/BUILD
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@ -13,16 +13,6 @@ cc_binary(
platform_binary(
name = "which_libc_{}".format(name),
src = "which_libc",
extra_toolchains = [
# toolchains for specific libc versions
"//libc_aware/toolchain:linux_amd64_gnu.2.19",
"//libc_aware/toolchain:linux_amd64_gnu.2.28",
"//libc_aware/toolchain:linux_amd64_gnu.2.31",
"//libc_aware/toolchain:linux_amd64_musl",
# fallback toolchains
"//toolchain:linux_amd64_gnu.2.19",
"//toolchain:linux_arm64_gnu.2.28",
],
platform = platform,
),
sh_test(

32
test/go/BUILD
View File

@ -24,31 +24,29 @@ go_test(
[
platform_binary(
name = "go_{}".format(toolchain),
name = "go_{}".format(name),
src = "go",
extra_toolchains = ["//toolchain:{}".format(toolchain)],
platform = "//platform:{}".format(platform),
platform = platform,
)
for platform, toolchain in [
("linux_amd64", "linux_amd64_musl"),
("linux_amd64", "linux_amd64_gnu.2.19"),
("linux_arm64", "linux_arm64_musl"),
("linux_arm64", "linux_arm64_gnu.2.28"),
("darwin_amd64", "darwin_amd64"),
for name, platform in [
("linux_amd64_musl", "//libc_aware/platform:linux_amd64_musl"),
("linux_amd64_gnu.2.19", "//libc_aware/platform:linux_amd64_gnu.2.19"),
("linux_arm64_musl", "//libc_aware/platform:linux_arm64_musl"),
("linux_arm64_gnu.2.28", "//libc_aware/platform:linux_arm64_gnu.2.28"),
("darwin_amd64", "//platform:darwin_amd64"),
]
]
[
platform_test(
name = "go_test_{}".format(toolchain),
name = "go_test_{}".format(name),
src = "go_test",
extra_toolchains = ["//toolchain:{}".format(toolchain)],
platform = "//platform:{}".format(platform),
platform = platform,
)
for platform, toolchain in [
("linux_amd64", "linux_amd64_musl"),
("linux_amd64", "linux_amd64_gnu.2.19"),
("linux_arm64", "linux_arm64_musl"),
("linux_arm64", "linux_arm64_gnu.2.28"),
for name, platform in [
("linux_amd64_musl", "//libc_aware/platform:linux_amd64_musl"),
("linux_amd64_gnu.2.19", "//libc_aware/platform:linux_amd64_gnu.2.19"),
("linux_arm64_musl", "//libc_aware/platform:linux_arm64_musl"),
("linux_arm64_gnu.2.28", "//libc_aware/platform:linux_arm64_gnu.2.28"),
]
]