Add basic musl support to make
There are still devices that set BUILD_BROKEN_USES_BUILD_HOST_* and
build host modules in Make. Add basic support for building against
libc_musl in Make when USE_HOST_MUSL is set.
Bug: 258535366
Test: build a host tool defined in Android.mk file in internal branch
Change-Id: I9150be749bbeaac2ac5a33b2cf915004aa3033df
diff --git a/core/binary.mk b/core/binary.mk
index 1ad9be8..6320726 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -19,7 +19,11 @@
# supply that, for example, when building libc itself.
ifdef LOCAL_IS_HOST_MODULE
ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
+ ifdef USE_HOST_MUSL
+ my_system_shared_libraries := libc_musl
+ else
my_system_shared_libraries :=
+ endif
else
my_system_shared_libraries := $(LOCAL_SYSTEM_SHARED_LIBRARIES)
endif
@@ -348,9 +352,11 @@
else # LOCAL_IS_HOST_MODULE
# Add -ldl, -lpthread, -lm and -lrt to host builds to match the default behavior of
# device builds
- my_ldlibs += -ldl -lpthread -lm
- ifneq ($(HOST_OS),darwin)
- my_ldlibs += -lrt
+ ifndef USE_HOST_MUSL
+ my_ldlibs += -ldl -lpthread -lm
+ ifneq ($(HOST_OS),darwin)
+ my_ldlibs += -lrt
+ endif
endif
endif
diff --git a/core/config.mk b/core/config.mk
index 631ba34..5160762 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -1049,14 +1049,6 @@
BOARD_PREBUILT_HIDDENAPI_DIR ?=
.KATI_READONLY := BOARD_PREBUILT_HIDDENAPI_DIR
-ifdef USE_HOST_MUSL
- ifneq (,$(or $(BUILD_BROKEN_USES_BUILD_HOST_EXECUTABLE),\
- $(BUILD_BROKEN_USES_BUILD_HOST_SHARED_LIBRARY),\
- $(BUILD_BROKEN_USES_BUILD_HOST_STATIC_LIBRARY)))
- $(error USE_HOST_MUSL can't be set when native host builds are enabled in Make with BUILD_BROKEN_USES_BUILD_HOST_*)
- endif
-endif
-
# ###############################################################
# Set up final options.
# ###############################################################
diff --git a/core/definitions.mk b/core/definitions.mk
index afa7f7b..31f3028 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2121,6 +2121,7 @@
$(PRIVATE_HOST_GLOBAL_LDFLAGS) \
) \
$(PRIVATE_LDFLAGS) \
+ $(PRIVATE_CRTBEGIN) \
$(PRIVATE_ALL_OBJECTS) \
-Wl,--whole-archive \
$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES) \
@@ -2129,8 +2130,10 @@
$(PRIVATE_ALL_STATIC_LIBRARIES) \
$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_HOST_LIBPROFILE_RT)) \
+ $(PRIVATE_LIBCRT_BUILTINS) \
$(PRIVATE_ALL_SHARED_LIBRARIES) \
-o $@ \
+ $(PRIVATE_CRTEND) \
$(PRIVATE_LDLIBS)
endef
endif
@@ -2264,6 +2267,7 @@
ifneq ($(HOST_CUSTOM_LD_COMMAND),true)
define transform-host-o-to-executable-inner
$(hide) $(PRIVATE_CXX_LINK) \
+ $(PRIVATE_CRTBEGIN) \
$(PRIVATE_ALL_OBJECTS) \
-Wl,--whole-archive \
$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES) \
@@ -2272,6 +2276,7 @@
$(PRIVATE_ALL_STATIC_LIBRARIES) \
$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_HOST_LIBPROFILE_RT)) \
+ $(PRIVATE_LIBCRT_BUILTINS) \
$(PRIVATE_ALL_SHARED_LIBRARIES) \
$(foreach path,$(PRIVATE_RPATHS), \
-Wl,-rpath,\$$ORIGIN/$(path)) \
@@ -2280,6 +2285,7 @@
) \
$(PRIVATE_LDFLAGS) \
-o $@ \
+ $(PRIVATE_CRTEND) \
$(PRIVATE_LDLIBS)
endef
endif
diff --git a/core/host_executable_internal.mk b/core/host_executable_internal.mk
index 0cf62a4..2ff9ff2 100644
--- a/core/host_executable_internal.mk
+++ b/core/host_executable_internal.mk
@@ -39,6 +39,21 @@
endif
my_libdir :=
+my_crtbegin :=
+my_crtend :=
+my_libcrt_builtins :=
+ifdef USE_HOST_MUSL
+ my_crtbegin := $(SOONG_$(LOCAL_2ND_ARCH_VAR_PREFIX)HOST_OBJECT_libc_musl_crtbegin_dynamic)
+ my_crtend := $(SOONG_$(LOCAL_2ND_ARCH_VAR_PREFIX)HOST_OBJECT_libc_musl_crtend)
+ my_libcrt_builtins := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBCRT_BUILTINS)
+ $(LOCAL_BUILT_MODULE): PRIVATE_LDFLAGS += -Wl,--no-dynamic-linker
+endif
+
+$(LOCAL_BUILT_MODULE): PRIVATE_CRTBEGIN := $(my_crtbegin)
+$(LOCAL_BUILT_MODULE): PRIVATE_CRTEND := $(my_crtend)
+$(LOCAL_BUILT_MODULE): PRIVATE_LIBCRT_BUILTINS := $(my_libcrt_builtins)
+$(LOCAL_BUILT_MODULE): $(my_crtbegin) $(my_crtend) $(my_libcrt_builtins)
+
$(LOCAL_BUILT_MODULE): $(all_objects) $(all_libraries) $(CLANG_CXX)
$(transform-host-o-to-executable)
diff --git a/core/host_shared_library_internal.mk b/core/host_shared_library_internal.mk
index da20874..ae8b798 100644
--- a/core/host_shared_library_internal.mk
+++ b/core/host_shared_library_internal.mk
@@ -36,6 +36,17 @@
my_host_libprofile_rt := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBPROFILE_RT)
$(LOCAL_BUILT_MODULE): PRIVATE_HOST_LIBPROFILE_RT := $(my_host_libprofile_rt)
+ifdef USE_HOST_MUSL
+ my_crtbegin := $(SOONG_$(LOCAL_2ND_ARCH_VAR_PREFIX)HOST_OBJECT_libc_musl_crtbegin_so)
+ my_crtend := $(SOONG_$(LOCAL_2ND_ARCH_VAR_PREFIX)HOST_OBJECT_libc_musl_crtend_so)
+ my_libcrt_builtins := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBCRT_BUILTINS)
+endif
+
+$(LOCAL_BUILT_MODULE): PRIVATE_CRTBEGIN := $(my_crtbegin)
+$(LOCAL_BUILT_MODULE): PRIVATE_CRTEND := $(my_crtend)
+$(LOCAL_BUILT_MODULE): PRIVATE_LIBCRT_BUILTINS := $(my_libcrt_builtins)
+$(LOCAL_BUILT_MODULE): $(my_crtbegin) $(my_crtend) $(my_libcrt_builtins)
+
$(LOCAL_BUILT_MODULE): \
$(all_objects) \
$(all_libraries) \