diff options
Diffstat (limited to 'Kbuild')
| -rw-r--r-- | Kbuild | 78 |
1 files changed, 59 insertions, 19 deletions
@@ -2,18 +2,18 @@ # # Kbuild for top-level directory of the kernel -##### +# Prepare global headers and check sanity before descending into sub-directories +# --------------------------------------------------------------------------- + # Generate bounds.h bounds-file := include/generated/bounds.h -always-y := $(bounds-file) targets := kernel/bounds.s $(bounds-file): kernel/bounds.s FORCE $(call filechk,offsets,__LINUX_BOUNDS_H__) -##### # Generate timeconst.h timeconst-file := include/generated/timeconst.h @@ -23,12 +23,10 @@ filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $< $(timeconst-file): kernel/time/timeconst.bc FORCE $(call filechk,gentimeconst) -##### # Generate asm-offsets.h offsets-file := include/generated/asm-offsets.h -always-y += $(offsets-file) targets += arch/$(SRCARCH)/kernel/asm-offsets.s arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) @@ -36,24 +34,66 @@ arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) $(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE $(call filechk,offsets,__ASM_OFFSETS_H__) -##### # Check for missing system calls -always-y += missing-syscalls - quiet_cmd_syscalls = CALL $< cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) -missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE +PHONY += missing-syscalls +missing-syscalls: scripts/checksyscalls.sh $(offsets-file) $(call cmd,syscalls) -##### -# Check atomic headers are up-to-date - -always-y += old-atomics - -quiet_cmd_atomics = CALL $< - cmd_atomics = $(CONFIG_SHELL) $< - -old-atomics: scripts/atomic/check-atomics.sh FORCE - $(call cmd,atomics) +# Check the manual modification of atomic headers + +quiet_cmd_check_sha1 = CHKSHA1 $< + cmd_check_sha1 = \ + if ! command -v sha1sum >/dev/null; then \ + echo "warning: cannot check the header due to sha1sum missing"; \ + exit 0; \ + fi; \ + if [ "$$(sed -n '$$s:// ::p' $<)" != \ + "$$(sed '$$d' $< | sha1sum | sed 's/ .*//')" ]; then \ + echo "error: $< has been modified." >&2; \ + exit 1; \ + fi; \ + touch $@ + +atomic-checks += $(addprefix $(obj)/.checked-, \ + atomic-arch-fallback.h \ + atomic-instrumented.h \ + atomic-long.h) + +targets += $(atomic-checks) +$(atomic-checks): $(obj)/.checked-%: include/linux/atomic/% FORCE + $(call if_changed,check_sha1) + +# A phony target that depends on all the preparation targets + +PHONY += prepare +prepare: $(offsets-file) missing-syscalls $(atomic-checks) + @: + +# Ordinary directory descending +# --------------------------------------------------------------------------- + +obj-y += init/ +obj-y += usr/ +obj-y += arch/$(SRCARCH)/ +obj-y += $(ARCH_CORE) +obj-y += kernel/ +obj-y += certs/ +obj-y += mm/ +obj-y += fs/ +obj-y += ipc/ +obj-y += security/ +obj-y += crypto/ +obj-$(CONFIG_BLOCK) += block/ +obj-$(CONFIG_IO_URING) += io_uring/ +obj-$(CONFIG_RUST) += rust/ +obj-y += $(ARCH_LIB) +obj-y += drivers/ +obj-y += sound/ +obj-$(CONFIG_SAMPLES) += samples/ +obj-$(CONFIG_NET) += net/ +obj-y += virt/ +obj-y += $(ARCH_DRIVERS) |