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11 commits

Author SHA1 Message Date
Googler c2549f6eb0 Sync cc toolchain from Bazel's tools/cpp
- @bazel_tools//tools/cpp:toolchain_type is not moved.
- Added cc/toolchains/toolchain_config_utils.bzl for exposing util functions for cc toolchain configuration.

Closes https://github.com/bazelbuild/rules_cc/pull/247

Working towards https://github.com/bazelbuild/bazel/issues/23809

PiperOrigin-RevId: 681913803
Change-Id: I16ff456a212ab0e579c137bd74344255f4e49bd8
2024-10-03 09:32:38 -07:00
rosica 2312d72134 Fix allowed values in 'compiler' attribute of cc_toolchain_config rule.
When cpu value is not enough to distinguish between two toolchains, we use the compiler value. In that case, the user needs to specify the compiler value for all cc_toolchain_config rules, even for the ones with unique cpu. This cl fixes the allowed values in the compiler attribute to account for the values from unique toolchains.

Issue #5380
RELNOTES: None.
PiperOrigin-RevId: 239396228
2019-03-20 07:55:12 -07:00
rosica 943183cae8 Fix load("//tools/cpp:cc_toolchain_config_lib.bzl") to load("@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl")
And add a test checking the full output from the migrator for a simple CROSSTOOL.

Issue #5380
RELNOTES: None.
PiperOrigin-RevId: 239153961
2019-03-19 02:46:26 -07:00
rosica 3b89ccfbe7 Remove linter warnings that a feature or action_config may not be declared by setting it to None instead.
Also rename the rule from cc_toolchain_config_rule to cc_toolchain_config

Issue #5380

RELNOTES: None.
PiperOrigin-RevId: 238945434
2019-03-18 01:50:26 -07:00
hlopko b844e0c4b8 Replace scrubbing with copybara-comment-this-out-please in copybara
This will make sure the copybara export is reversible, which is needed for setting up copybara workflow for importing github PRs.

RELNOTES: None.
PiperOrigin-RevId: 238445502
2019-03-14 17:13:28 +01:00
hlopko 7caec85c2c Improve rules_cc copybara
* # copybara-scrub suffix now works in BUILD and bzl files
* //tools/cpp is rewritten to @bazel_build//tools/cpp **in any filetype**
* //third_party/bazel_rules/rules_cc is rewritten to // **in any filetype**

PiperOrigin-RevId: 233919400
2019-02-14 13:22:37 +01:00
rosica d4fef61119 Add feature declaration tests
And fix an error where we added previously unseen action_names to the dictionary of familiar ACTION_NAMES, so later when we would encounter them, we would treat them as variables, not as string literals
eg
env_set {
  action = "a"
}
would translate to
env_set(
  actions = [a],
)
which is, obviously wrong.

Issue #5380

PiperOrigin-RevId: 232817515
2019-02-06 23:50:49 -08:00
rosica e02152f86e Remove fail("Unreachable") from features' and action_configs' declaration statements
If toolchain A and B need feature f, but toolchain C doesn't, the generated declaration statement for feature f would be:
if ctx.attr.cpu == 'A.cpu':
   f = feature(...)
elif ctx.attr.cpu == "B.cpu" and ctx.attr.compiler == "B.compiler":
   f = feature(...)
else:
   fail("Unreachable")

This will break the rule implementation in the case of toolchain C because it will reach the  fail("Unreachable") although it doesn't need to declare feature f

This cl fixes that

Issue #5380

PiperOrigin-RevId: 232683639
2019-02-06 08:56:10 -08:00
rosica de27916485 Fix action_config names
If an action_config's name doesn't appear in the action_names.bzl, eg action-a.b+c, in it's assignments statement we would declare it as:
action_a.b+c_action = action_config( ...

This cl fixes it to create the action_config variable with the +, - and .
It also adds tests for action_config

Issue #5380

PiperOrigin-RevId: 232681355
2019-02-06 08:41:22 -08:00
rosica 9432a5a6e8 Make crosstool to starlark converter error out if it comes across multiple expand_if_all_available or expand_if_none_available in a single flag_group
PiperOrigin-RevId: 232499399
2019-02-05 09:20:21 -08:00
rosica b3a83d701a Add a script for converting CROSSTOOL files to Starlark rules
Progress towards issue #5380

RELNOTES: None
PiperOrigin-RevId: 230795058
2019-01-24 14:54:38 -08:00