顶层makefile

COMMON_TARGETS        := pan utils

COMMON_TARGETS    += tools testcases/ddt
COMMON_TARGETS    += testcases/kernel/timers
COMMON_TARGETS    += testcases/kernel/ipc
COMMON_TARGETS    += testcases/kernel/mem
COMMON_TARGETS    += testcases/kernel/lib
COMMON_TARGETS    += testcases/kernel/syscalls
COMMON_TARGETS    += testcases/kernel/security
COMMON_TARGETS    += testcases/kernel/sched
COMMON_TARGETS    += testcases/kernel/hotplug
COMMON_TARGETS    += testcases/misc/math
COMMON_TARGETS    += testcases/lib
COMMON_TARGETS    += testcases/realtime
COMMON_TARGETS    += testcases/cve
COMMON_TARGETS    += testcases/commands/keyctl

需要编译的目标，可以在此处注释掉，不进行编译，最终目标文件夹会小很多（只编译pan utils tools testcases/ddt 和testcases/lib 54MB）

all: $(addsuffix -all,$(COMMON_TARGETS)) Version

$(MAKE_TARGETS): lib-all

$(MAKE_TARGETS) include-all lib-all:
    $(MAKE) -C "$(subst -all,,$@)" \
        -f "$(abs_top_srcdir)/$(subst -all,,$@)/Makefile" all

先编译lib，之后按照COMMON_TARGETS  顺序逐一编译。

./testcases：

top_srcdir        ?= ..

include $(top_srcdir)/include/mk/env_pre.mk

FILTER_OUT_DIRS        := kdump

ifneq ($(WITH_OPEN_POSIX_TESTSUITE),yes)
FILTER_OUT_DIRS        += open_posix_testsuite
endif

ifneq ($(WITH_REALTIME_TESTSUITE),yes)
FILTER_OUT_DIRS        += realtime
endif

include $(top_srcdir)/include/mk/generic_trunk_target.mk # 包含generic_trunk_target.inc 中包含all:

./testcases/ddt:

top_srcdir        ?= ../..

include $(top_srcdir)/include/mk/env_pre.mk

include $(top_srcdir)/include/mk/generic_trunk_target.mk

./testcases/ddt/i2c_test_suite:

top_srcdir              ?= ../../..

include $(top_srcdir)/include/mk/env_pre.mk

KERNEL_DIR        := $(patsubst %/include,%,$(KERNEL_INC))
INSTALL_DIR             := testcases/bin/ddt

FILTER_OUT_DIRS         :=

# We don't want to copy over the Makefile
UNWANTED_FILES          := Makefile

INSTALL_MODE            := 00755

#INSTALL_TARGETS         := $(filter-out $(UNWANTED_FILES),$(notdir $(patsubst $(abs_srcdir)/%,%,$(wildcard $(abs_srcdir)/*))))

CFLAGS          += -g -Wall -O1 -fomit-frame-pointer
LDFLAGS         += -g -static
INCLUDES        = -I $(KERNEL_USR_INC) -I src/interface/common -I ../utils/user

#List of source files- Update this on adding a new C file
SOURCES := \
        ../utils/user/st_timer.c \
        ../utils/user/st_cpu_load.c \
        src/testcases/st_i2c_eeprom.c \
        src/interface/common/st_i2c_common.c \
        src/parser/st_i2c_parser.c

MAKE_TARGETS            := i2c_tests

i2c_tests:
    $(CC) $(CFLAGS) $(LDFLAGS) -o i2c_tests ${INCLUDES} ${SOURCES}

include $(top_srcdir)/include/mk/generic_leaf_target.mk #包含generic_leaf_target.inc 中包含all:

./testcases/ddt/scripts

top_srcdir        ?= ../../..

include $(top_srcdir)/include/mk/env_pre.mk

# Define directories to exclude from build/installation
#FILTER_OUT_DIRS        := kdump

include $(top_srcdir)/include/mk/generic_trunk_target.mk

./testcases/ddt/scripts/eth

top_srcdir        ?= ../../../..

include $(top_srcdir)/include/mk/env_pre.mk

INSTALL_DIR        := testcases/bin/ddt/$(notdir $(CURDIR:%/=%))

FILTER_OUT_DIRS         :=

# We don't want to copy over the Makefile
UNWANTED_FILES        := Makefile

INSTALL_MODE        := 00755

INSTALL_TARGETS        := $(filter-out $(UNWANTED_FILES),$(notdir $(patsubst $(abs_srcdir)/%,%,$(wildcard $(abs_srcdir)/*)))) #shell脚本只需要install 不要gcc

MAKE_TARGETS        :=

include $(top_srcdir)/include/mk/generic_leaf_target.mk #最底层文件夹用leaf

./testcases/kernel：

top_srcdir        ?= ../..

include $(top_srcdir)/include/mk/env_pre.mk

# NOTE (garrcoop): mce-test isn't integrated into the build.

# Build syscalls in all scenarios.
SUBDIRS            := syscalls

# Build lib
SUBDIRS            += lib

ifneq ($(UCLINUX),1)
# KEEP THIS LIST ALPHABETIZED PLEASE!
SUBDIRS            += connectors \
               containers \
               controllers \
               device-drivers \
               firmware \
               fs \
               hotplug \
               input \
               io \
               ipc \
               logging \
               mem \
               numa \
               pty \
               sched \
               security \
               timers \
               tracing \
               module \

ifeq ($(WITH_POWER_MANAGEMENT_TESTSUITE),yes)
SUBDIRS            += power_management
endif

endif

ifeq ($(ANDROID),1)
FILTER_OUT_DIRS        += containers controllers device-drivers fs io ipc mem \
                sched security timers
endif

include $(top_srcdir)/include/mk/generic_trunk_target.mk

./testcases/kernel/syscalls

top_srcdir        ?= ../../..

include    $(top_srcdir)/include/mk/env_pre.mk

ifeq ($(UCLINUX),1)
FILTER_OUT_DIRS    += capget capset chmod chown clone fork getcontext llseek \
           mincore mprotect nftw profil remap_file_pages sbrk
endif

ifeq ($(UCLIBC),1)
FILTER_OUT_DIRS    += profil
endif

ifeq ($(ANDROID), 1)
FILTER_OUT_DIRS    += \
    accept4 adjtimex cma confstr fcntl fmtmsg futex getcontext getcpu \
    getdomainname getdtablesize gethostid getgroups get_mempolicy ipc \
    linkat kill mallopt memmap mq_notify mq_open mq_timedreceive \
    mq_timedsend mq_unlink mmap mremap open openat profil ptrace quotactl \
    readahead remap_file_pages rt_sigsuspend rt_sigtimedwait \
    sched_getaffinity sched_setaffinity sendmsg setgroups setns sighold \
    sigrelse sigsuspend sigtimedwait sigwait sigwaitinfo stime \
    setdomainname sethostname symlinkat ulimit ustat vfork vhangup vmsplice
endif

include $(top_srcdir)/include/mk/generic_trunk_target.mk

./testcases/kernel/syscalls/alarm

top_srcdir        ?= ../../../..

include $(top_srcdir)/include/mk/testcases.mk

include $(top_srcdir)/include/mk/generic_leaf_target.mk