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author | Jiyong Park <jiyong@google.com> | 2017-07-03 13:18:12 +0900 |
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committer | Jiyong Park <jiyong@google.com> | 2017-07-08 09:29:04 +0900 |
commit | d773eb3e8673162af6c841306c5e4ca7fabe4d51 (patch) | |
tree | de90a9335bc292078b5b0f93cda51e17fe6c4092 /cc | |
parent | 0c3a1efae4814f62ece007c7fc2251386aaae2f2 (diff) | |
download | build_soong-d773eb3e8673162af6c841306c5e4ca7fabe4d51.tar.gz build_soong-d773eb3e8673162af6c841306c5e4ca7fabe4d51.tar.bz2 build_soong-d773eb3e8673162af6c841306c5e4ca7fabe4d51.zip |
add device_kernel_headers module for vendor-specific kernel headers
device_kernel_headers is a built-in heder-only lib that provides device-specific
kernel headers. The header path is configured via a new product variable
SystemIncludeDirs, which is currently the mirror of
TARGET_PROJECT_SYSTEM_INCLUDES in the make world.
Note: generic kernel headers (bionic/libc/kernel) have been added to the
include path by default. "device_kernel_headers" module is for device-specific
kernel headers such as /device/*/*/kernel-headers.
Note 2: this is opt-in for Android.bp modules (i.e. header_libs :
["device_kernel_headers"] required.) while it is always provided to
Android.mk modules.
Bug: 62939405
Test: choosecombo to aosp_sailfish (or any other Pixel/Nexus targets)
BOARD_VNDK_VERSION=current m -j gralloc.msm8996 (or any other vendor
libs using vendor-specific kernel headers)
Change-Id: I81c60abc13942c89fff723d1544b27a81b300db0
Diffstat (limited to 'cc')
-rw-r--r-- | cc/kernel_headers.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/cc/kernel_headers.go b/cc/kernel_headers.go new file mode 100644 index 00000000..c66fca68 --- /dev/null +++ b/cc/kernel_headers.go @@ -0,0 +1,53 @@ +// 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 cc + +import ( + "android/soong/android" +) + +type kernelHeadersDecorator struct { + *libraryDecorator +} + +func (stub *kernelHeadersDecorator) link(ctx ModuleContext, flags Flags, deps PathDeps, objs Objects) android.Path { + if ctx.Device() { + f := &stub.libraryDecorator.flagExporter + for _, dir := range ctx.DeviceConfig().DeviceKernelHeaderDirs() { + f.flags = append(f.flags, "-isystem"+dir) + } + } + return stub.libraryDecorator.linkStatic(ctx, flags, deps, objs) +} + +func kernelHeadersFactory() android.Module { + module, library := NewLibrary(android.HostAndDeviceSupported) + library.HeaderOnly() + + stub := &kernelHeadersDecorator{ + libraryDecorator: library, + } + + module.compiler = nil + module.linker = stub + module.installer = nil + + android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibBoth) + return module +} + +func init() { + android.RegisterModuleType("kernel_headers", kernelHeadersFactory) +} |