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Commit 4a5fd836 authored by Vincent Donnefort's avatar Vincent Donnefort
Browse files

Add null and console dev nodes to the Android initramfs 

/dev/null is a security requirement for bionic, /dev/console is needed
so the kernel can set-up stdout stderr and stdin before running /init.

Bug: 254835242
Change-Id: I865856885e9957ea17e28b62273e701af9bfc56f
parent 4556196c

core/Makefile

+5 −2
Original line number Diff line number Diff line
@@ -924,16 +924,19 @@ COMPRESSION_COMMAND := $(MINIGZIP) 
RAMDISK_EXT := .gz

endif



# This file contains /dev nodes description added to the generic ramdisk

RAMDISK_NODE_LIST := $(PRODUCT_OUT)/ramdisk_node_list



# We just build this directly to the install location.

INSTALLED_RAMDISK_TARGET := $(BUILT_RAMDISK_TARGET)

$(INSTALLED_RAMDISK_TARGET): PRIVATE_DIRS := debug_ramdisk dev metadata mnt proc second_stage_resources sys

$(INSTALLED_RAMDISK_TARGET): $(MKBOOTFS) $(INTERNAL_RAMDISK_FILES) $(INSTALLED_FILES_FILE_RAMDISK) | $(COMPRESSION_COMMAND_DEPS)

$(INSTALLED_RAMDISK_TARGET): $(MKBOOTFS) $(RAMDISK_NODE_LIST) $(INTERNAL_RAMDISK_FILES) $(INSTALLED_FILES_FILE_RAMDISK) | $(COMPRESSION_COMMAND_DEPS)

	$(call pretty,"Target ramdisk: $@")

	$(hide) mkdir -p $(addprefix $(TARGET_RAMDISK_OUT)/,$(PRIVATE_DIRS))

ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))

	$(hide) mkdir -p $(addprefix $(TARGET_RAMDISK_OUT)/first_stage_ramdisk/,$(PRIVATE_DIRS))

endif

	$(hide) $(MKBOOTFS) -d $(TARGET_OUT) $(TARGET_RAMDISK_OUT) | $(COMPRESSION_COMMAND) > $@

	$(hide) $(MKBOOTFS) -n $(RAMDISK_NODE_LIST) -d $(TARGET_OUT) $(TARGET_RAMDISK_OUT) | $(COMPRESSION_COMMAND) > $@



$(call declare-1p-container,$(INSTALLED_RAMDISK_TARGET),)

$(call declare-container-license-deps,$(INSTALLED_RAMDISK_TARGET),$(INTERNAL_RAMDISK_FILE),$(PRODUCT_OUT)/:/)