summaryrefslogtreecommitdiff
path: root/scripts/Makefile.vmlinux
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/Makefile.vmlinux')
-rw-r--r--scripts/Makefile.vmlinux105
1 files changed, 92 insertions, 13 deletions
diff --git a/scripts/Makefile.vmlinux b/scripts/Makefile.vmlinux
index c9f3e03124d7..b64862dc6f08 100644
--- a/scripts/Makefile.vmlinux
+++ b/scripts/Makefile.vmlinux
@@ -5,38 +5,117 @@ __default: vmlinux
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
-
-# for c_flags
include $(srctree)/scripts/Makefile.lib
targets :=
-quiet_cmd_cc_o_c = CC $@
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
+ifdef CONFIG_ARCH_VMLINUX_NEEDS_RELOCS
+vmlinux-final := vmlinux.unstripped
+
+quiet_cmd_strip_relocs = RSTRIP $@
+ cmd_strip_relocs = $(OBJCOPY) --remove-section='.rel*' --remove-section=!'.rel*.dyn' $< $@
+
+vmlinux: $(vmlinux-final) FORCE
+ $(call if_changed,strip_relocs)
+
+targets += vmlinux
+else
+vmlinux-final := vmlinux
+endif
%.o: %.c FORCE
- $(call if_changed_dep,cc_o_c)
+ $(call if_changed_rule,cc_o_c)
+
+%.o: %.S FORCE
+ $(call if_changed_rule,as_o_S)
+
+# Built-in dtb
+# ---------------------------------------------------------------------------
+
+quiet_cmd_wrap_dtbs = WRAP $@
+ cmd_wrap_dtbs = { \
+ echo '\#include <asm-generic/vmlinux.lds.h>'; \
+ echo '.section .dtb.init.rodata,"a"'; \
+ while read dtb; do \
+ symbase=__dtb_$$(basename -s .dtb "$${dtb}" | tr - _); \
+ echo '.balign STRUCT_ALIGNMENT'; \
+ echo ".global $${symbase}_begin"; \
+ echo "$${symbase}_begin:"; \
+ echo '.incbin "'$$dtb'" '; \
+ echo ".global $${symbase}_end"; \
+ echo "$${symbase}_end:"; \
+ done < $<; \
+ } > $@
+
+.builtin-dtbs.S: .builtin-dtbs-list FORCE
+ $(call if_changed,wrap_dtbs)
+
+quiet_cmd_gen_dtbs_list = GEN $@
+ cmd_gen_dtbs_list = \
+ $(if $(CONFIG_BUILTIN_DTB_NAME), echo "arch/$(SRCARCH)/boot/dts/$(CONFIG_BUILTIN_DTB_NAME).dtb",:) > $@
+
+.builtin-dtbs-list: arch/$(SRCARCH)/boot/dts/dtbs-list FORCE
+ $(call if_changed,$(if $(CONFIG_BUILTIN_DTB_ALL),copy,gen_dtbs_list))
+
+targets += .builtin-dtbs-list
+
+ifdef CONFIG_GENERIC_BUILTIN_DTB
+targets += .builtin-dtbs.S .builtin-dtbs.o
+$(vmlinux-final): .builtin-dtbs.o
+endif
+
+# vmlinux
+# ---------------------------------------------------------------------------
ifdef CONFIG_MODULES
-KASAN_SANITIZE_.vmlinux.export.o := n
-KCSAN_SANITIZE_.vmlinux.export.o := n
-GCOV_PROFILE_.vmlinux.export.o := n
targets += .vmlinux.export.o
-vmlinux: .vmlinux.export.o
+$(vmlinux-final): .vmlinux.export.o
+endif
+
+ifdef CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX
+$(vmlinux-final): arch/$(SRCARCH)/tools/vmlinux.arch.o
+
+arch/$(SRCARCH)/tools/vmlinux.arch.o: vmlinux.o FORCE
+ $(Q)$(MAKE) $(build)=arch/$(SRCARCH)/tools $@
endif
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
# Final link of vmlinux with optional arch pass after final link
cmd_link_vmlinux = \
- $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
+ $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)" "$@"; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
-targets += vmlinux
-vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
+targets += $(vmlinux-final)
+$(vmlinux-final): scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
+$(call if_changed_dep,link_vmlinux)
+ifdef CONFIG_DEBUG_INFO_BTF
+$(vmlinux-final): $(RESOLVE_BTFIDS)
+endif
+
+ifdef CONFIG_BUILDTIME_TABLE_SORT
+$(vmlinux-final): scripts/sorttable
+endif
+
+# modules.builtin.ranges
+# ---------------------------------------------------------------------------
+ifdef CONFIG_BUILTIN_MODULE_RANGES
+__default: modules.builtin.ranges
+
+quiet_cmd_modules_builtin_ranges = GEN $@
+ cmd_modules_builtin_ranges = gawk -f $(real-prereqs) > $@
+
+targets += modules.builtin.ranges
+modules.builtin.ranges: $(srctree)/scripts/generate_builtin_ranges.awk \
+ modules.builtin vmlinux.map vmlinux.o.map FORCE
+ $(call if_changed,modules_builtin_ranges)
+
+vmlinux.map: $(vmlinux-final)
+ @:
+
+endif
-# Add FORCE to the prequisites of a target to force it to be always rebuilt.
+# Add FORCE to the prerequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------
PHONY += FORCE