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  1 # SPDX-License-Identifier: GPL-2.0
  2 #
  3 # Kbuild for top-level directory of the kernel
  4 
  5 #####
  6 # Generate bounds.h
  7 
  8 bounds-file := include/generated/bounds.h
  9 
 10 always-y := $(bounds-file)
 11 targets := kernel/bounds.s
 12 
 13 $(bounds-file): kernel/bounds.s FORCE
 14         $(call filechk,offsets,__LINUX_BOUNDS_H__)
 15 
 16 #####
 17 # Generate timeconst.h
 18 
 19 timeconst-file := include/generated/timeconst.h
 20 
 21 filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $<
 22 
 23 $(timeconst-file): kernel/time/timeconst.bc FORCE
 24         $(call filechk,gentimeconst)
 25 
 26 #####
 27 # Generate asm-offsets.h
 28 
 29 offsets-file := include/generated/asm-offsets.h
 30 
 31 always-y += $(offsets-file)
 32 targets += arch/$(SRCARCH)/kernel/asm-offsets.s
 33 
 34 arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file)
 35 
 36 $(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE
 37         $(call filechk,offsets,__ASM_OFFSETS_H__)
 38 
 39 #####
 40 # Check for missing system calls
 41 
 42 always-y += missing-syscalls
 43 
 44 quiet_cmd_syscalls = CALL    $<
 45       cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags)
 46 
 47 missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE
 48         $(call cmd,syscalls)
 49 
 50 #####
 51 # Check atomic headers are up-to-date
 52 
 53 always-y += old-atomics
 54 
 55 quiet_cmd_atomics = CALL    $<
 56       cmd_atomics = $(CONFIG_SHELL) $<
 57 
 58 old-atomics: scripts/atomic/check-atomics.sh FORCE
 59         $(call cmd,atomics)

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