Quelle Makefile.vmlinux Sprache: unbekannt

# SPDX-License-Identifier: GPL-2.0-only

PHONY := __default
__default: vmlinux

include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
include $(srctree)/scripts/Makefile.lib

targets :=

%.o: %.c FORCE
$(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.unstripped: .builtin-dtbs.o
endif

# vmlinux.unstripped
# ---------------------------------------------------------------------------

ifdef CONFIG_MODULES
targets += .vmlinux.export.o
vmlinux.unstripped: .vmlinux.export.o
endif

ifdef CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX
vmlinux.unstripped: 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)" "$@"; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)

targets += vmlinux.unstripped
vmlinux.unstripped: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
+$(call if_changed_dep,link_vmlinux)
ifdef CONFIG_DEBUG_INFO_BTF
vmlinux.unstripped: $(RESOLVE_BTFIDS)
endif

ifdef CONFIG_BUILDTIME_TABLE_SORT
vmlinux.unstripped: scripts/sorttable
endif

# vmlinux
# ---------------------------------------------------------------------------

remove-section-y                                   := .modinfo
remove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel*' '!.rel*.dyn'
# for compatibility with binutils < 2.32
# https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c12d9fa2afe7abcbe407a00e15719e1a1350c2a7
remove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel.*'

# To avoid warnings: "empty loadable segment detected at ..." from GNU objcopy,
# it is necessary to remove the PT_LOAD flag from the segment.
quiet_cmd_strip_relocs = OBJCOPY $@
      cmd_strip_relocs = $(OBJCOPY) $(patsubst %,--set-section-flags %=noload,$(remove-section-y)) $< $@; \
                         $(OBJCOPY) $(addprefix --remove-section=,$(remove-section-y)) $@

targets += vmlinux
vmlinux: vmlinux.unstripped FORCE
$(call if_changed,strip_relocs)

# 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.unstripped
@:

endif

# Add FORCE to the prerequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------

PHONY += FORCE
FORCE:

# Read all saved command lines and dependencies for the $(targets) we
# may be building above, using $(if_changed{,_dep}). As an
# optimization, we don't need to read them if the target does not
# exist, we will rebuild anyway in that case.

existing-targets := $(wildcard $(sort $(targets)))

-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)

.PHONY: $(PHONY)

Quelle Makefile.vmlinux Sprache: unbekannt

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