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soong: Exclude system shared libs from fix suggestions

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Pass the value of system_shared_libs to the Android.mk world, so that
prebuilt ELF check can exclude them from fix suggestions.

Bug: 141925662
Test: Write a bad cc_prebuilt_library module and check fix suggestions
Change-Id: I0cc61821765507180ce6a582bf8125a192f83a57
This commit is contained in:
Yo Chiang 2020-09-22 18:45:04 +08:00
parent cc79a6f514
commit 219968c9b3
3 changed files with 23 additions and 8 deletions
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7
cc/androidmk.go
View file

@ -83,6 +83,13 @@ func (c *Module) AndroidMkEntries() []android.AndroidMkEntries {
if len(c.Properties.Logtags) > 0 {
entries.AddStrings("LOCAL_LOGTAGS_FILES", c.Properties.Logtags...)
}
// Note: Pass the exact value of AndroidMkSystemSharedLibs to the Make
// world, even if it is an empty list. In the Make world,
// LOCAL_SYSTEM_SHARED_LIBRARIES defaults to "none", which is expanded
// to the default list of system shared libs by the build system.
// Soong computes the exact list of system shared libs, so we have to
// override the default value when the list of libs is actually empty.
entries.SetString("LOCAL_SYSTEM_SHARED_LIBRARIES", strings.Join(c.Properties.AndroidMkSystemSharedLibs, " "))
if len(c.Properties.AndroidMkSharedLibs) > 0 {
entries.AddStrings("LOCAL_SHARED_LIBRARIES", c.Properties.AndroidMkSharedLibs...)
}

8
cc/cc.go
View file

@ -99,6 +99,9 @@ type Deps struct {
// Used for data dependencies adjacent to tests
DataLibs []string
// Used by DepsMutator to pass system_shared_libs information to check_elf_file.py.
SystemSharedLibs []string
StaticUnwinderIfLegacy bool
ReexportSharedLibHeaders, ReexportStaticLibHeaders, ReexportHeaderLibHeaders []string
@ -237,6 +240,9 @@ type BaseProperties struct {
PreventInstall bool `blueprint:"mutated"`
ApexesProvidingSharedLibs []string `blueprint:"mutated"`
// Set by DepsMutator.
AndroidMkSystemSharedLibs []string `blueprint:"mutated"`
ImageVariationPrefix string `blueprint:"mutated"`
VndkVersion string `blueprint:"mutated"`
SubName string `blueprint:"mutated"`
@ -1815,6 +1821,8 @@ func (c *Module) DepsMutator(actx android.BottomUpMutatorContext) {
deps := c.deps(ctx)
c.Properties.AndroidMkSystemSharedLibs = deps.SystemSharedLibs
variantNdkLibs := []string{}
variantLateNdkLibs := []string{}
if ctx.Os() == android.Android {

16
cc/linker.go
View file

@ -278,19 +278,19 @@ func (linker *baseLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
deps.LateStaticLibs = append(deps.LateStaticLibs, "libatomic")
}
systemSharedLibs := linker.Properties.System_shared_libs
if systemSharedLibs == nil {
deps.SystemSharedLibs = linker.Properties.System_shared_libs
if deps.SystemSharedLibs == nil {
// Provide a default system_shared_libs if it is unspecified. Note: If an
// empty list [] is specified, it implies that the module declines the
// default system_shared_libs.
systemSharedLibs = []string{"libc", "libm", "libdl"}
deps.SystemSharedLibs = []string{"libc", "libm", "libdl"}
}
if inList("libdl", deps.SharedLibs) {
// If system_shared_libs has libc but not libdl, make sure shared_libs does not
// have libdl to avoid loading libdl before libc.
if inList("libc", systemSharedLibs) {
if !inList("libdl", systemSharedLibs) {
if inList("libc", deps.SystemSharedLibs) {
if !inList("libdl", deps.SystemSharedLibs) {
ctx.PropertyErrorf("shared_libs",
"libdl must be in system_shared_libs, not shared_libs")
}
@ -300,12 +300,12 @@ func (linker *baseLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
// If libc and libdl are both in system_shared_libs make sure libdl comes after libc
// to avoid loading libdl before libc.
if inList("libdl", systemSharedLibs) && inList("libc", systemSharedLibs) &&
indexList("libdl", systemSharedLibs) < indexList("libc", systemSharedLibs) {
if inList("libdl", deps.SystemSharedLibs) && inList("libc", deps.SystemSharedLibs) &&
indexList("libdl", deps.SystemSharedLibs) < indexList("libc", deps.SystemSharedLibs) {
ctx.PropertyErrorf("system_shared_libs", "libdl must be after libc")
}
deps.LateSharedLibs = append(deps.LateSharedLibs, systemSharedLibs...)
deps.LateSharedLibs = append(deps.LateSharedLibs, deps.SystemSharedLibs...)
}
if ctx.Fuchsia() {