Link libc++demangle with libc++ for the device.
libc++demangle provides __cxa_demangle, which used to be a part of
libc++.so but is being moved out to save on resources since very few
libraries need it.
Test: make checkbuild
Bug: http://b/138245375
Change-Id: Ie97225d496d7d40f8749522bf36702a2d9dcdfe7
diff --git a/cc/cc_test.go b/cc/cc_test.go
index c619b5a..c4799e9 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -1941,13 +1941,13 @@
// Check the shared version of lib2.
variant := "android_arm64_armv8-a_core_shared"
module := ctx.ModuleForTests("lib2", variant).Module().(*Module)
- checkStaticLibs(t, []string{"lib1", "libclang_rt.builtins-aarch64-android", "libatomic", "libgcc_stripped"}, module)
+ checkStaticLibs(t, []string{"lib1", "libc++demangle", "libclang_rt.builtins-aarch64-android", "libatomic", "libgcc_stripped"}, module)
// Check the static version of lib2.
variant = "android_arm64_armv8-a_core_static"
module = ctx.ModuleForTests("lib2", variant).Module().(*Module)
// libc++_static is linked additionally.
- checkStaticLibs(t, []string{"lib1", "libc++_static", "libclang_rt.builtins-aarch64-android", "libatomic", "libgcc_stripped"}, module)
+ checkStaticLibs(t, []string{"lib1", "libc++_static", "libc++demangle", "libclang_rt.builtins-aarch64-android", "libatomic", "libgcc_stripped"}, module)
}
var compilerFlagsTestCases = []struct {
diff --git a/cc/stl.go b/cc/stl.go
index 1a5dd79..d7feb6f 100644
--- a/cc/stl.go
+++ b/cc/stl.go
@@ -161,6 +161,15 @@
} else {
deps.StaticLibs = append(deps.StaticLibs, stl.Properties.SelectedStl)
}
+ if ctx.Device() && !ctx.useSdk() {
+ // __cxa_demangle is not a part of libc++.so on the device since
+ // it's large and most processes don't need it. Statically link
+ // libc++demangle into every process so that users still have it if
+ // needed, but the linker won't include this unless it is actually
+ // called.
+ // http://b/138245375
+ deps.StaticLibs = append(deps.StaticLibs, "libc++demangle")
+ }
if ctx.toolchain().Bionic() {
if ctx.Arch().ArchType == android.Arm {
deps.StaticLibs = append(deps.StaticLibs, "libunwind_llvm")
diff --git a/cc/testing.go b/cc/testing.go
index f0ad33b..e69b774 100644
--- a/cc/testing.go
+++ b/cc/testing.go
@@ -167,6 +167,16 @@
},
}
cc_library {
+ name: "libc++demangle",
+ no_libcrt: true,
+ nocrt: true,
+ system_shared_libs: [],
+ stl: "none",
+ host_supported: false,
+ vendor_available: true,
+ recovery_available: true,
+ }
+ cc_library {
name: "libunwind_llvm",
no_libcrt: true,
nocrt: true,