Check ELF prebuilts in PRODUCT_COPY_FILES
Add a check to ban ELF prebuilts in PRODUCT_COPY_FILES.
ELF prebuilts should be defined properly by cc_prebuilt_library_shared
and cc_prebuilt_binary so that the build system can keep track of the
file dependencies.
To opt in this check, set this option in BoardConfig.mk:
BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := false
After all devices that have ELF prebuilts in PRODUCT_COPY_FILES are
tagged with BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := true flip
BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES to default false.
After a device is cleaned up, remove its
BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := true setting.
Bug: 140560012
Test: Set BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := false
Test: m # Should report any ELF prebuilt error in PRODUCT_COPY_FILES
Change-Id: Id75dac9417aed9baa7c5e9388430ff9369cf9b4f
diff --git a/core/Makefile b/core/Makefile
index bda0b23..29a6bea 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -39,6 +39,16 @@
use ODM_MANIFEST_FILES / vintf_fragments instead!)) \
)
endef
+
+# TODO(b/140560012): Flip BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES to default
+# false after all problematic devices are tagged.
+check_elf_prebuilt_product_copy_files :=
+ifneq (,$(filter false,$(BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES)))
+check_elf_prebuilt_product_copy_files := true
+endif
+check_elf_prebuilt_product_copy_files_hint := \
+ found ELF prebuilt in PRODUCT_COPY_FILES, use cc_prebuilt_binary / cc_prebuilt_library_shared instead.
+
# filter out the duplicate <source file>:<dest file> pairs.
unique_product_copy_files_pairs :=
$(foreach cf,$(PRODUCT_COPY_FILES), \
@@ -59,7 +69,10 @@
$(eval $(call copy-and-uncompress-dexs,$(_src),$(_fulldest))), \
$(if $(filter init%rc,$(notdir $(_dest)))$(filter %/etc/init,$(dir $(_dest))),\
$(eval $(call copy-init-script-file-checked,$(_src),$(_fulldest))),\
- $(eval $(call copy-one-file,$(_src),$(_fulldest)))))) \
+ $(if $(and $(filter true,$(check_elf_prebuilt_product_copy_files)), \
+ $(filter bin lib lib64,$(subst /,$(space),$(_dest)))), \
+ $(eval $(call copy-non-elf-file-checked,$(_src),$(_fulldest),$(check_elf_prebuilt_product_copy_files_hint))), \
+ $(eval $(call copy-one-file,$(_src),$(_fulldest))))))) \
$(eval unique_product_copy_files_destinations += $(_dest))))
# Dump a list of overriden (and ignored PRODUCT_COPY_FILES entries)
diff --git a/core/board_config.mk b/core/board_config.mk
index 8ff16e2..da4ba3d 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -87,6 +87,7 @@
_build_broken_var_list := \
BUILD_BROKEN_DUP_RULES \
+ BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES \
BUILD_BROKEN_OUTSIDE_INCLUDE_DIRS \
BUILD_BROKEN_PREBUILT_ELF_FILES \
BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW \
diff --git a/core/definitions.mk b/core/definitions.mk
index 3499da9..9eaaa20 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2551,6 +2551,22 @@
$(_cmf_dest)))
endef
+# Copy the file only if it's not an ELF file. For use via $(eval).
+# $(1): source file
+# $(2): destination file
+# $(3): message to print on error
+define copy-non-elf-file-checked
+$(2): $(1) $(LLVM_READOBJ)
+ @echo "Copy non-ELF: $$@"
+ $(hide) \
+ if $(LLVM_READOBJ) -h $$< >/dev/null 2>&1; then \
+ $(call echo-error,$$@,$(3)); \
+ $(call echo-error,$$@,found ELF file: $$<); \
+ false; \
+ fi
+ $$(copy-file-to-target)
+endef
+
# The -t option to acp and the -p option to cp is
# required for OSX. OSX has a ridiculous restriction
# where it's an error for a .a file's modification time
