0d5b95acb6
ABI is being implemented for x86_64, making it necessary to support protected exports header file generation for the GKI modules for multiple architecture. Enable support to select required inputs based on the ARCH to generate gki_module_protected_exports.h during kernel build. Inputs for generating gki_module_protected_exports.h are: ARCH = arm64: ABI Protected exports list: abi_gki_protected_exports_aarch64 Protected GKI modules list: gki_aarch64_protected_modules ARCH = x86_64: ABI Protected exports list: abi_gki_protected_exports_x86_64 Protected GKI modules list: gki_x86_64_protected_modules Test: TH Test: Manual verification of the generated header file Test: bazel run //common:kernel_aarch64_abi_update_protected_exports Bug: 151893768 Change-Id: Ic4bcb2732199b71a7973b5ce4c852bcd95d37131 Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
55 lines
2 KiB
Makefile
55 lines
2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Makefile for linux kernel module support
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#
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# These are called from save_stack_trace() on slub debug path,
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# and produce insane amounts of uninteresting coverage.
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KCOV_INSTRUMENT_module.o := n
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obj-y += main.o strict_rwx.o
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obj-$(CONFIG_MODULE_DECOMPRESS) += decompress.o
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obj-$(CONFIG_MODULE_SIG) += signing.o
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obj-$(CONFIG_MODULE_SIG_PROTECT) += gki_module.o
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obj-$(CONFIG_LIVEPATCH) += livepatch.o
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obj-$(CONFIG_MODULES_TREE_LOOKUP) += tree_lookup.o
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obj-$(CONFIG_DEBUG_KMEMLEAK) += debug_kmemleak.o
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obj-$(CONFIG_KALLSYMS) += kallsyms.o
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obj-$(CONFIG_PROC_FS) += procfs.o
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obj-$(CONFIG_SYSFS) += sysfs.o
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obj-$(CONFIG_KGDB_KDB) += kdb.o
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obj-$(CONFIG_MODVERSIONS) += version.o
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obj-$(CONFIG_MODULE_UNLOAD_TAINT_TRACKING) += tracking.o
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#
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# ANDROID: GKI: Generate headerfiles required for gki_module.o
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#
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# Dependencies on generated files need to be listed explicitly
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$(obj)/gki_module.o: $(obj)/gki_module_protected_exports.h \
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$(obj)/gki_module_unprotected.h
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ALL_KMI_SYMBOLS := all_kmi_symbols
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$(obj)/gki_module_unprotected.h: $(ALL_KMI_SYMBOLS) \
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$(srctree)/scripts/gen_gki_modules_headers.sh
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$(Q)$(CONFIG_SHELL) $(srctree)/scripts/gen_gki_modules_headers.sh $@ \
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"$(srctree)" \
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$(ALL_KMI_SYMBOLS)
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# Generate symbol list with union of all symbol list for arm64; empty for others
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$(ALL_KMI_SYMBOLS): $(if $(filter arm64,$(ARCH)),$(wildcard $(srctree)/android/abi_gki_aarch64_*),)
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$(if $(strip $^),cat $^ > $(ALL_KMI_SYMBOLS), echo "" > $(ALL_KMI_SYMBOLS))
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# ABI protected exports list file specific to ARCH if exists else empty
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ABI_PROTECTED_EXPORTS_FILE :=
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ifeq ($(ARCH),arm64)
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ABI_PROTECTED_EXPORTS_FILE := $(wildcard $(srctree)/android/abi_gki_protected_exports_aarch64)
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else
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ABI_PROTECTED_EXPORTS_FILE := $(wildcard $(srctree)/android/abi_gki_protected_exports_$(ARCH))
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endif
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$(obj)/gki_module_protected_exports.h: $(ABI_PROTECTED_EXPORTS_FILE) \
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$(srctree)/scripts/gen_gki_modules_headers.sh
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$(Q)$(CONFIG_SHELL) $(srctree)/scripts/gen_gki_modules_headers.sh $@ \
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"$(srctree)" \
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$(ABI_PROTECTED_EXPORTS_FILE)
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