581c189988
Add support for yacc (.y or .yy) and lex (.l or .ll) files. Also tweak locations of .o files for normal and generated sources to makes sure they don't collide. Change-Id: I03172cddbdc022525bf392a81d72050406b8cdb3
110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cc
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import (
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"fmt"
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"regexp"
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"strings"
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)
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// Efficiently converts a list of include directories to a single string
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// of cflags with -I prepended to each directory.
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func includeDirsToFlags(dirs []string) string {
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return joinWithPrefix(dirs, "-I")
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}
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func ldDirsToFlags(dirs []string) string {
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return joinWithPrefix(dirs, "-L")
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}
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func libNamesToFlags(names []string) string {
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return joinWithPrefix(names, "-l")
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}
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func joinWithPrefix(strs []string, prefix string) string {
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if len(strs) == 0 {
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return ""
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}
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if len(strs) == 1 {
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return prefix + strs[0]
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}
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n := len(" ") * (len(strs) - 1)
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for _, s := range strs {
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n += len(prefix) + len(s)
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}
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ret := make([]byte, 0, n)
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for i, s := range strs {
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if i != 0 {
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ret = append(ret, ' ')
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}
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ret = append(ret, prefix...)
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ret = append(ret, s...)
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}
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return string(ret)
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}
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func inList(s string, list []string) bool {
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for _, l := range list {
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if l == s {
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return true
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}
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}
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return false
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}
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func filterList(list []string, filter []string) (remainder []string, filtered []string) {
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for _, l := range list {
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if inList(l, filter) {
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filtered = append(filtered, l)
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} else {
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remainder = append(remainder, l)
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}
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}
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return
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}
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var libNameRegexp = regexp.MustCompile(`^lib(.*)$`)
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func moduleToLibName(module string) (string, error) {
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matches := libNameRegexp.FindStringSubmatch(module)
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if matches == nil {
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return "", fmt.Errorf("Library module name %s does not start with lib", module)
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}
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return matches[1], nil
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}
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func ccFlagsToBuilderFlags(in CCFlags) builderFlags {
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return builderFlags{
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globalFlags: strings.Join(in.GlobalFlags, " "),
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asFlags: strings.Join(in.AsFlags, " "),
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cFlags: strings.Join(in.CFlags, " "),
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conlyFlags: strings.Join(in.ConlyFlags, " "),
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cppFlags: strings.Join(in.CppFlags, " "),
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yaccFlags: strings.Join(in.YaccFlags, " "),
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ldFlags: strings.Join(in.LdFlags, " "),
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ldLibs: strings.Join(in.LdLibs, " "),
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incFlags: includeDirsToFlags(in.IncludeDirs),
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nocrt: in.Nocrt,
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toolchain: in.Toolchain,
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clang: in.Clang,
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}
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}
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