8618716c68
Normally a syscall would check the current privilege level and then decide to go to _impl_<syscall> directly or go through a _handler_<syscall>. __ZEPHYR_SUPERVISOR__ is a compiler optimization flag which will make all the system calls from the kernel files directly link to the _impl_<syscall>. Thereby reducing the overhead of checking the privileges. Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
59 lines
1.4 KiB
CMake
59 lines
1.4 KiB
CMake
# kernel is a normal CMake library and not a zephyr_library because it
|
|
# should not be --whole-archive'd
|
|
add_library(kernel
|
|
alert.c
|
|
device.c
|
|
errno.c
|
|
idle.c
|
|
init.c
|
|
mailbox.c
|
|
mem_slab.c
|
|
mempool.c
|
|
msg_q.c
|
|
mutex.c
|
|
pipes.c
|
|
queue.c
|
|
sched.c
|
|
sem.c
|
|
stack.c
|
|
sys_clock.c
|
|
system_work_q.c
|
|
thread.c
|
|
thread_abort.c
|
|
version.c
|
|
work_q.c
|
|
smp.c
|
|
)
|
|
|
|
# Kernel files has the macro __ZEPHYR_SUPERVISOR__ set so that it
|
|
# optimizes the code when userspace is enabled.
|
|
set_target_properties(
|
|
kernel
|
|
PROPERTIES
|
|
COMPILE_DEFINITIONS
|
|
__ZEPHYR_SUPERVISOR__
|
|
)
|
|
|
|
target_sources_ifdef(CONFIG_INT_LATENCY_BENCHMARK kernel PRIVATE int_latency_bench.c)
|
|
target_sources_ifdef(CONFIG_STACK_CANARIES kernel PRIVATE compiler_stack_protect.c)
|
|
target_sources_ifdef(CONFIG_SYS_CLOCK_EXISTS kernel PRIVATE timer.c)
|
|
target_sources_ifdef(CONFIG_ATOMIC_OPERATIONS_C kernel PRIVATE atomic_c.c)
|
|
target_sources_if_kconfig( kernel PRIVATE poll.c)
|
|
|
|
# The last 2 files inside the target_sources_ifdef should be
|
|
# userspace_handler.c and userspace.c. If not the linker would complain.
|
|
# This order has to be maintained. Any new file should be placed
|
|
# above these 2 files.
|
|
target_sources_ifdef(
|
|
CONFIG_USERSPACE
|
|
kernel PRIVATE
|
|
mem_domain.c
|
|
userspace_handler.c
|
|
userspace.c
|
|
)
|
|
|
|
|
|
add_dependencies(kernel offsets_h)
|
|
|
|
target_link_libraries(kernel zephyr_interface)
|