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# This creates the demonstration utility "lguest" which runs a Linux guest.
# For those people that have a separate object dir, look there for .config
KBUILD_OUTPUT := ../..
ifdef O
ifeq ("$(origin O)", "command line")
KBUILD_OUTPUT := $(O)
endif
endif
# We rely on CONFIG_PAGE_OFFSET to know where to put lguest binary.
include $(KBUILD_OUTPUT)/.config
LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000)
CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 \
-static -DLGUEST_GUEST_TOP="$(LGUEST_GUEST_TOP)" -Wl,-T,lguest.lds
LDLIBS:=-lz
all: lguest.lds lguest
# The linker script on x86 is so complex the only way of creating one
# which will link our binary in the right place is to mangle the
# default one.
lguest.lds:
$(LD) --verbose | awk '/^==========/ { PRINT=1; next; } /SIZEOF_HEADERS/ { gsub(/0x[0-9A-F]*/, "$(LGUEST_GUEST_TOP)") } { if (PRINT) print $$0; }' > $@
clean:
rm -f lguest.lds lguest
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