f979d73428
I'm not sure if these sections are used, but by adding them to libgcc_stripped.a, we can end up with multiple .gnu_debuglink sections in an executable, where the first two unhelpfully point at "libgcc.a". e.g.: $ readelf -SW -x.gnu_debuglink out/target/product/walleye/system/bin/bootstrap/linker64 ... Section Headers: ... [18] .gnu_debuglink PROGBITS 0000000000000000 10f19c 000020 00 0 0 1 ... [22] .gnu_debuglink PROGBITS 0000000000000000 18a2c8 000010 00 0 0 4 ... Hex dump of section '.gnu_debuglink': 0x00000000 6c696267 63632e61 00000000 3d5f65d8 libgcc.a....=_e. 0x00000010 6c696267 63632e61 00000000 3d5f65d8 libgcc.a....=_e. Hex dump of section '.gnu_debuglink': 0x00000000 6c696e6b 65723634 00000000 f85db7ea linker64.....].. Bug: none Test: m libgcc_stripped linker Test: no .gnu_debuglink section in libgcc_stripped.a Test: only one .gnu_debuglink section in system/bin/bootstrap/linker64 Change-Id: I0c47a9acd6d52f5cbc5bfa8b67d072ebb075a242
98 lines
2.8 KiB
Go
98 lines
2.8 KiB
Go
// Copyright 2016 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"
|
|
)
|
|
|
|
//
|
|
// Device libraries shipped with gcc
|
|
//
|
|
|
|
func init() {
|
|
android.RegisterModuleType("toolchain_library", ToolchainLibraryFactory)
|
|
}
|
|
|
|
type toolchainLibraryProperties struct {
|
|
// the prebuilt toolchain library, as a path from the top of the source tree
|
|
Src *string `android:"arch_variant"`
|
|
}
|
|
|
|
type toolchainLibraryDecorator struct {
|
|
*libraryDecorator
|
|
|
|
stripper
|
|
|
|
Properties toolchainLibraryProperties
|
|
}
|
|
|
|
func (*toolchainLibraryDecorator) linkerDeps(ctx DepsContext, deps Deps) Deps {
|
|
// toolchain libraries can't have any dependencies
|
|
return deps
|
|
}
|
|
|
|
func (library *toolchainLibraryDecorator) linkerProps() []interface{} {
|
|
var props []interface{}
|
|
props = append(props, library.libraryDecorator.linkerProps()...)
|
|
return append(props, &library.Properties, &library.stripper.StripProperties)
|
|
}
|
|
|
|
// toolchain_library is used internally by the build tool to link the specified
|
|
// static library in src property to the device libraries that are shipped with
|
|
// gcc.
|
|
func ToolchainLibraryFactory() android.Module {
|
|
module, library := NewLibrary(android.HostAndDeviceSupported)
|
|
library.BuildOnlyStatic()
|
|
toolchainLibrary := &toolchainLibraryDecorator{
|
|
libraryDecorator: library,
|
|
}
|
|
module.compiler = toolchainLibrary
|
|
module.linker = toolchainLibrary
|
|
module.stl = nil
|
|
module.sanitize = nil
|
|
module.installer = nil
|
|
return module.Init()
|
|
}
|
|
|
|
func (library *toolchainLibraryDecorator) compile(ctx ModuleContext, flags Flags,
|
|
deps PathDeps) Objects {
|
|
return Objects{}
|
|
}
|
|
|
|
func (library *toolchainLibraryDecorator) link(ctx ModuleContext,
|
|
flags Flags, deps PathDeps, objs Objects) android.Path {
|
|
|
|
if library.Properties.Src == nil {
|
|
ctx.PropertyErrorf("src", "No library source specified")
|
|
return android.PathForSource(ctx, "")
|
|
}
|
|
|
|
srcPath := android.PathForSource(ctx, *library.Properties.Src)
|
|
|
|
if library.stripper.StripProperties.Strip.Keep_symbols_list != nil {
|
|
fileName := ctx.ModuleName() + staticLibraryExtension
|
|
outputFile := android.PathForModuleOut(ctx, fileName)
|
|
buildFlags := flagsToBuilderFlags(flags)
|
|
library.stripper.stripStaticLib(ctx, srcPath, outputFile, buildFlags)
|
|
return outputFile
|
|
}
|
|
|
|
return srcPath
|
|
}
|
|
|
|
func (library *toolchainLibraryDecorator) nativeCoverage() bool {
|
|
return false
|
|
}
|