Commit 95698570 authored by Sam Ravnborg's avatar Sam Ravnborg Committed by Michal Marek

kbuild: refactor final link of sparc32

sparc32 uses an additional final link to support btfix.
Introduce a new set of exported variables in the top-level Makefile
to make the extra linking step simpler.

sparc32 has hardcoded knowledge of kallsyms support. This fix
include support for EXTRA_KALLSYM_PASS=1.
The ugly part is that it is hardcoded in the arch/sparc/boot
Makefile.
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
parent 275eb135
...@@ -723,6 +723,11 @@ libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) ...@@ -723,6 +723,11 @@ libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
libs-y := $(libs-y1) $(libs-y2) libs-y := $(libs-y1) $(libs-y2)
# externally visible symbols
export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
# Build vmlinux # Build vmlinux
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
# vmlinux is built from the objects selected by $(vmlinux-init) and # vmlinux is built from the objects selected by $(vmlinux-init) and
......
...@@ -72,17 +72,6 @@ libs-y += arch/sparc/lib/ ...@@ -72,17 +72,6 @@ libs-y += arch/sparc/lib/
drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/ drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
# Export what is needed by arch/sparc/boot/Makefile
export VMLINUX_INIT VMLINUX_MAIN
VMLINUX_INIT := $(head-y) $(init-y)
VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/
VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y)
VMLINUX_MAIN += $(drivers-y) $(net-y)
ifdef CONFIG_KALLSYMS
export kallsyms.o := .tmp_kallsyms2.o
endif
boot := arch/sparc/boot boot := arch/sparc/boot
# Default target # Default target
......
...@@ -39,11 +39,15 @@ define rule_image ...@@ -39,11 +39,15 @@ define rule_image
echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
endef endef
BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT)) # Support for kallsyms
BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN)) kallsyms-$(CONFIG_KALLSYMS) := .tmp_kallsyms2.o
LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \ ifdef KALLSYMS_EXTRA_PASS
--start-group $(BTLIBS) --end-group \ kallsyms-$(CONFIG_KALLSYMS) := .tmp_kallsyms3.o
$(kallsyms.o) $(obj)/btfix.o endif
LDFLAGS_image := -T $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) \
--start-group $(KBUILD_VMLINUX_MAIN) --end-group \
$(kallsyms-y) $(obj)/btfix.o
# Link the final image including btfixup'ed symbols. # Link the final image including btfixup'ed symbols.
# This is a replacement for the link done in the top-level Makefile. # This is a replacement for the link done in the top-level Makefile.
......
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