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feat: Strip debug info from opt builds (#2513)
Attempts to follow the cargo proposal linked below to remove debug info for release builds. Furthermore this should uphold the expected behavior of bazel for cc builds which automatically strips debug symbols for optimized builds. rust-lang/cargo#4122 (comment)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| load(":strip_level_test_suite.bzl", "strip_level_test_suite") | ||
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|
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| strip_level_test_suite( | ||
| name = "strip_level_test_suite", | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| """Starlark tests for `rust_toolchain.strip_level`""" | ||
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| load("@bazel_skylib//lib:unittest.bzl", "analysistest") | ||
| load("@bazel_skylib//rules:write_file.bzl", "write_file") | ||
| load("//rust:defs.bzl", "rust_binary") | ||
| load( | ||
| "//test/unit:common.bzl", | ||
| "assert_action_mnemonic", | ||
| "assert_argv_contains", | ||
| ) | ||
|
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| def _strip_level_test_impl(ctx, expected_level): | ||
| env = analysistest.begin(ctx) | ||
| target = analysistest.target_under_test(env) | ||
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| action = target.actions[0] | ||
| assert_action_mnemonic(env, action, "Rustc") | ||
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| assert_argv_contains(env, action, "--codegen=strip={}".format(expected_level)) | ||
| return analysistest.end(env) | ||
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| def _strip_level_for_dbg_test_impl(ctx): | ||
| return _strip_level_test_impl(ctx, "none") | ||
|
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| _strip_level_for_dbg_test = analysistest.make( | ||
| _strip_level_for_dbg_test_impl, | ||
| config_settings = { | ||
| "//command_line_option:compilation_mode": "dbg", | ||
| }, | ||
| ) | ||
|
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| def _strip_level_for_fastbuild_test_impl(ctx): | ||
| return _strip_level_test_impl(ctx, "none") | ||
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| _strip_level_for_fastbuild_test = analysistest.make( | ||
| _strip_level_for_fastbuild_test_impl, | ||
| config_settings = { | ||
| "//command_line_option:compilation_mode": "fastbuild", | ||
| }, | ||
| ) | ||
|
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| def _strip_level_for_opt_test_impl(ctx): | ||
| return _strip_level_test_impl(ctx, "debuginfo") | ||
|
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| _strip_level_for_opt_test = analysistest.make( | ||
| _strip_level_for_opt_test_impl, | ||
| config_settings = { | ||
| "//command_line_option:compilation_mode": "opt", | ||
| }, | ||
| ) | ||
|
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| def strip_level_test_suite(name): | ||
| """Entry-point macro called from the BUILD file. | ||
| Args: | ||
| name (str): The name of the test suite. | ||
| """ | ||
| write_file( | ||
| name = "bin_main", | ||
| out = "main.rs", | ||
| content = [ | ||
| "fn main() {}", | ||
| "", | ||
| ], | ||
| ) | ||
|
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||
| rust_binary( | ||
| name = "bin", | ||
| srcs = [":main.rs"], | ||
| edition = "2021", | ||
| target_compatible_with = [ | ||
| "@platforms//os:linux", | ||
| "@platforms//os:macos", | ||
| "@platforms//os:none", | ||
| ], | ||
| ) | ||
|
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| _strip_level_for_dbg_test( | ||
| name = "strip_level_for_dbg_test", | ||
| target_under_test = ":bin", | ||
| ) | ||
|
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| _strip_level_for_fastbuild_test( | ||
| name = "strip_level_for_fastbuild_test", | ||
| target_under_test = ":bin", | ||
| ) | ||
|
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| _strip_level_for_opt_test( | ||
| name = "strip_level_for_opt_test", | ||
| target_under_test = ":bin", | ||
| ) | ||
|
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| native.test_suite( | ||
| name = name, | ||
| tests = [ | ||
| ":strip_level_for_dbg_test", | ||
| ":strip_level_for_fastbuild_test", | ||
| ":strip_level_for_opt_test", | ||
| ], | ||
| ) |