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// Copyright 2017 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"sort"
"strings"
"android/soong/android"
)
// Cflags that should be filtered out when compiling with clang
var ClangUnknownCflags = sorted([]string{
"-finline-functions",
"-finline-limit=64",
"-fno-canonical-system-headers",
"-Wno-clobbered",
"-fno-devirtualize",
"-fno-tree-sra",
"-fprefetch-loop-arrays",
"-funswitch-loops",
"-Wmaybe-uninitialized",
"-Wno-error=clobbered",
"-Wno-error=maybe-uninitialized",
"-Wno-extended-offsetof",
"-Wno-free-nonheap-object",
"-Wno-literal-suffix",
"-Wno-maybe-uninitialized",
"-Wno-old-style-declaration",
"-Wno-unused-local-typedefs",
"-fdiagnostics-color",
// http://b/153759688
"-fuse-init-array",
// arm + arm64
"-fgcse-after-reload",
"-frerun-cse-after-loop",
"-frename-registers",
"-fno-strict-volatile-bitfields",
// arm + arm64
"-fno-align-jumps",
// arm
"-mthumb-interwork",
"-fno-builtin-sin",
"-fno-caller-saves",
"-fno-early-inlining",
"-fno-move-loop-invariants",
"-fno-partial-inlining",
"-fno-tree-copy-prop",
"-fno-tree-loop-optimize",
// x86 + x86_64
"-finline-limit=300",
"-fno-inline-functions-called-once",
"-mfpmath=sse",
"-mbionic",
// windows
"--enable-stdcall-fixup",
})
var ClangLibToolingUnknownCflags = sorted([]string{})
// List of tidy checks that should be disabled globally. When the compiler is
// updated, some checks enabled by this module may be disabled if they have
// become more strict, or if they are a new match for a wildcard group like
// `modernize-*`.
var ClangTidyDisableChecks = []string{
"misc-no-recursion",
"readability-function-cognitive-complexity", // http://b/175055536
}
func ClangFilterUnknownCflags(cflags []string) []string {
result, _ := android.FilterList(cflags, ClangUnknownCflags)
return result
}
func clangTidyNegateChecks(checks []string) []string {
ret := make([]string, 0, len(checks))
for _, c := range checks {
if strings.HasPrefix(c, "-") {
ret = append(ret, c)
} else {
ret = append(ret, "-"+c)
}
}
return ret
}
func ClangRewriteTidyChecks(checks []string) []string {
checks = append(checks, clangTidyNegateChecks(ClangTidyDisableChecks)...)
// clang-tidy does not allow later arguments to override earlier arguments,
// so if we just disabled an argument that was explicitly enabled we must
// remove the enabling argument from the list.
result, _ := android.FilterList(checks, ClangTidyDisableChecks)
return result
}
func ClangLibToolingFilterUnknownCflags(libToolingFlags []string) []string {
return android.RemoveListFromList(libToolingFlags, ClangLibToolingUnknownCflags)
}
func sorted(list []string) []string {
sort.Strings(list)
return list
}
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