Add prebuilt ELF binaries checker
This commit introduces a prebuilt ELF binaries checker. The checker
will check:
1. Whether all DT_NEEDED shared libraries are specified in
`shared_libs` (Android.bp) or `LOCAL_SHARED_LIBRARIES` (Android.mk).
2. Whether all undefined symbols in the prebuilt binary can be resolved
to defined symbols exported by its dependencies.
This ensures that prebuilt binaries won't silently become ABI
incompatible.
To check the prebuilt binaries, all of the dependencies must be
specified in `shared_libs` (Android.bp) or `LOCAL_SHARED_LIBRARIES`
(Android.mk).
If your prebuilt binaries cannot be checked for some reason, you may add
the following property to Android.bp:
check_elf_files: false,
Or, add the following setting to Android.mk:
LOCAL_CHECK_ELF_FILES := false
Bug: 119084334
Test: CHECK_ELF_FILES=true make check-elf-files
Change-Id: I523d3083f22fd4053c096d26f61f8375800281c8
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 9b995e2..0b48a77 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -168,6 +168,9 @@
include $(BUILD_SYSTEM)/link_type.mk
endif # prebuilt_module_is_a_library
+# Check prebuilt ELF binaries.
+include $(BUILD_SYSTEM)/check_elf_file.mk
+
# The real dependency will be added after all Android.mks are loaded and the install paths
# of the shared libraries are determined.
ifdef LOCAL_INSTALLED_MODULE