112e364b9f08aa335dc7716ce74113e834c993765Ken Cox# 212e364b9f08aa335dc7716ce74113e834c993765Ken Cox# Kbuild for top-level directory of the kernel 3f6d0c1e62b111bef3be279e4bf1bc2a6d560e205Benjamin Romer# This file takes care of the following: 412e364b9f08aa335dc7716ce74113e834c993765Ken Cox# 1) Generate bounds.h 512e364b9f08aa335dc7716ce74113e834c993765Ken Cox# 2) Generate asm-offsets.h (may need bounds.h) 612e364b9f08aa335dc7716ce74113e834c993765Ken Cox# 3) Check for missing system calls 712e364b9f08aa335dc7716ce74113e834c993765Ken Cox 812e364b9f08aa335dc7716ce74113e834c993765Ken Cox##### 912e364b9f08aa335dc7716ce74113e834c993765Ken Cox# 1) Generate bounds.h 1012e364b9f08aa335dc7716ce74113e834c993765Ken Cox 1112e364b9f08aa335dc7716ce74113e834c993765Ken Coxbounds-file := include/generated/bounds.h 1212e364b9f08aa335dc7716ce74113e834c993765Ken Cox 1312e364b9f08aa335dc7716ce74113e834c993765Ken Coxalways := $(bounds-file) 1412e364b9f08aa335dc7716ce74113e834c993765Ken Coxtargets := $(bounds-file) kernel/bounds.s 1512e364b9f08aa335dc7716ce74113e834c993765Ken Cox 1612e364b9f08aa335dc7716ce74113e834c993765Ken Coxquiet_cmd_bounds = GEN $@ 1712e364b9f08aa335dc7716ce74113e834c993765Ken Coxdefine cmd_bounds 1812e364b9f08aa335dc7716ce74113e834c993765Ken Cox (set -e; \ 1912e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#ifndef __LINUX_BOUNDS_H__"; \ 2012e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#define __LINUX_BOUNDS_H__"; \ 2112e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "/*"; \ 2212e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " * DO NOT MODIFY."; \ 2312e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " *"; \ 2412e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " * This file was generated by Kbuild"; \ 2512e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " *"; \ 2612e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " */"; \ 2712e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo ""; \ 2812e364b9f08aa335dc7716ce74113e834c993765Ken Cox sed -ne $(sed-y) $<; \ 2912e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo ""; \ 3012e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#endif" ) > $@ 3190addb0218d47a886c846a22d75979fe5bf3471bBenjamin Romerendef 3212e364b9f08aa335dc7716ce74113e834c993765Ken Cox 3312e364b9f08aa335dc7716ce74113e834c993765Ken Cox# We use internal kbuild rules to avoid the "is up to date" message from make 3412e364b9f08aa335dc7716ce74113e834c993765Ken Coxkernel/bounds.s: kernel/bounds.c FORCE 3512e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(Q)mkdir -p $(dir $@) 3612e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(call if_changed_dep,cc_s_c) 3712e364b9f08aa335dc7716ce74113e834c993765Ken Cox 388504ff6cab9cc43591999e542e437445db5cfd92Ken Cox$(obj)/$(bounds-file): kernel/bounds.s Kbuild 3912e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(Q)mkdir -p $(dir $@) 4012e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(call cmd,bounds) 4112e364b9f08aa335dc7716ce74113e834c993765Ken Cox 425fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romer##### 435fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romer# 2) Generate asm-offsets.h 445fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romer# 455fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romer 465fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romeroffsets-file := include/generated/asm-offsets.h 475fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romer 485fc0229ae5e68b8b20552b3b1944255583476c35Benjamin Romeralways += $(offsets-file) 4912e364b9f08aa335dc7716ce74113e834c993765Ken Coxtargets += $(offsets-file) 5012e364b9f08aa335dc7716ce74113e834c993765Ken Coxtargets += arch/$(SRCARCH)/kernel/asm-offsets.s 51833c7255cebceefe3208290c4a06456ad743fa59Benjamin Romer 52833c7255cebceefe3208290c4a06456ad743fa59Benjamin Romer 5312e364b9f08aa335dc7716ce74113e834c993765Ken Cox# Default sed regexp - multiline due to syntax constraints 5412e364b9f08aa335dc7716ce74113e834c993765Ken Coxdefine sed-y 5512e364b9f08aa335dc7716ce74113e834c993765Ken Cox "/^->/{s:->#\(.*\):/* \1 */:; \ 5682dd8152efc4bd8e8cce27df23ef033b24148616Benjamin Romer s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ 5782dd8152efc4bd8e8cce27df23ef033b24148616Benjamin Romer s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ 5812e364b9f08aa335dc7716ce74113e834c993765Ken Cox s:->::; p;}" 5912e364b9f08aa335dc7716ce74113e834c993765Ken Coxendef 6012e364b9f08aa335dc7716ce74113e834c993765Ken Cox 6112e364b9f08aa335dc7716ce74113e834c993765Ken Coxquiet_cmd_offsets = GEN $@ 6212e364b9f08aa335dc7716ce74113e834c993765Ken Coxdefine cmd_offsets 6312e364b9f08aa335dc7716ce74113e834c993765Ken Cox (set -e; \ 6412e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#ifndef __ASM_OFFSETS_H__"; \ 6512e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#define __ASM_OFFSETS_H__"; \ 6612e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "/*"; \ 6712e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " * DO NOT MODIFY."; \ 6812e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " *"; \ 6912e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " * This file was generated by Kbuild"; \ 7012e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " *"; \ 7112e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo " */"; \ 7212e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo ""; \ 7312e364b9f08aa335dc7716ce74113e834c993765Ken Cox sed -ne $(sed-y) $<; \ 7412e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo ""; \ 7512e364b9f08aa335dc7716ce74113e834c993765Ken Cox echo "#endif" ) > $@ 7612e364b9f08aa335dc7716ce74113e834c993765Ken Coxendef 7712e364b9f08aa335dc7716ce74113e834c993765Ken Cox 7812e364b9f08aa335dc7716ce74113e834c993765Ken Cox# We use internal kbuild rules to avoid the "is up to date" message from make 7917f5e49167cfca5c2c0d04863b8373736448238bBenjamin Romerarch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c \ 8017f5e49167cfca5c2c0d04863b8373736448238bBenjamin Romer $(obj)/$(bounds-file) FORCE 8117f5e49167cfca5c2c0d04863b8373736448238bBenjamin Romer $(Q)mkdir -p $(dir $@) 8217f5e49167cfca5c2c0d04863b8373736448238bBenjamin Romer $(call if_changed_dep,cc_s_c) 8312e364b9f08aa335dc7716ce74113e834c993765Ken Cox 8412e364b9f08aa335dc7716ce74113e834c993765Ken Cox$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild 8512e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(call cmd,offsets) 8612e364b9f08aa335dc7716ce74113e834c993765Ken Cox 8712e364b9f08aa335dc7716ce74113e834c993765Ken Cox##### 8821f8c6b845e4dda0f456a0ec159455540f5376c7Benjamin Romer# 3) Check for missing system calls 8921f8c6b845e4dda0f456a0ec159455540f5376c7Benjamin Romer# 9012e364b9f08aa335dc7716ce74113e834c993765Ken Cox 9121f8c6b845e4dda0f456a0ec159455540f5376c7Benjamin Romeralways += missing-syscalls 9212e364b9f08aa335dc7716ce74113e834c993765Ken Coxtargets += missing-syscalls 9312e364b9f08aa335dc7716ce74113e834c993765Ken Cox 9412e364b9f08aa335dc7716ce74113e834c993765Ken Coxquiet_cmd_syscalls = CALL $< 9512e364b9f08aa335dc7716ce74113e834c993765Ken Cox cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) 9612e364b9f08aa335dc7716ce74113e834c993765Ken Cox 9712e364b9f08aa335dc7716ce74113e834c993765Ken Coxmissing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE 9812e364b9f08aa335dc7716ce74113e834c993765Ken Cox $(call cmd,syscalls) 9912e364b9f08aa335dc7716ce74113e834c993765Ken Cox 10012e364b9f08aa335dc7716ce74113e834c993765Ken Cox# Keep these two files during make clean 10112e364b9f08aa335dc7716ce74113e834c993765Ken Coxno-clean-files := $(bounds-file) $(offsets-file) 10212e364b9f08aa335dc7716ce74113e834c993765Ken Cox