locking/atomic: Correct (cmp)xchg() instrumentation
[linux-block.git] / scripts / Makefile.vmlinux
1 # SPDX-License-Identifier: GPL-2.0-only
2
3 PHONY := __default
4 __default: vmlinux
5
6 include include/config/auto.conf
7 include $(srctree)/scripts/Kbuild.include
8
9 # for c_flags
10 include $(srctree)/scripts/Makefile.lib
11
12 targets :=
13
14 quiet_cmd_cc_o_c = CC      $@
15       cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
16
17 %.o: %.c FORCE
18         $(call if_changed_dep,cc_o_c)
19
20 ifdef CONFIG_MODULES
21 KASAN_SANITIZE_.vmlinux.export.o := n
22 targets += .vmlinux.export.o
23 vmlinux: .vmlinux.export.o
24 endif
25
26 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
27
28 # Final link of vmlinux with optional arch pass after final link
29 cmd_link_vmlinux =                                                      \
30         $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)";            \
31         $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
32
33 targets += vmlinux
34 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
35         +$(call if_changed_dep,link_vmlinux)
36
37 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
38 # ---------------------------------------------------------------------------
39
40 PHONY += FORCE
41 FORCE:
42
43 # Read all saved command lines and dependencies for the $(targets) we
44 # may be building above, using $(if_changed{,_dep}). As an
45 # optimization, we don't need to read them if the target does not
46 # exist, we will rebuild anyway in that case.
47
48 existing-targets := $(wildcard $(sort $(targets)))
49
50 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
51
52 .PHONY: $(PHONY)