[deliverable/linux.git] / Documentation / lguest / Makefile

# 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 -I../../include -Wl,-T,lguest.lds
LDLIBS:=-lz
# Removing this works for some versions of ld.so (eg. Ubuntu Feisty) and
# not others (eg. FC7).
LDFLAGS+=-static
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
Commit	Line	Data
8ca47e00 RR	1	# This creates the demonstration utility "lguest" which runs a Linux guest.
	2
	3	# For those people that have a separate object dir, look there for .config
	4	KBUILD_OUTPUT := ../..
	5	ifdef O
	6	ifeq ("$(origin O)", "command line")
	7	KBUILD_OUTPUT := $(O)
	8	endif
	9	endif
	10	# We rely on CONFIG_PAGE_OFFSET to know where to put lguest binary.
	11	include $(KBUILD_OUTPUT)/.config
	12	LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000)
	13
b45d8cb0	14	CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include -Wl,-T,lguest.lds
8ca47e00	15	LDLIBS:=-lz
e3bcf5e2 RM	16	# Removing this works for some versions of ld.so (eg. Ubuntu Feisty) and
	17	# not others (eg. FC7).
	18	LDFLAGS+=-static
8ca47e00 RR	19	all: lguest.lds lguest
	20
	21	# The linker script on x86 is so complex the only way of creating one
	22	# which will link our binary in the right place is to mangle the
	23	# default one.
	24	lguest.lds:
	25	$(LD) --verbose \| awk '/^==========/ { PRINT=1; next; } /SIZEOF_HEADERS/ { gsub(/0x[0-9A-F]*/, "$(LGUEST_GUEST_TOP)") } { if (PRINT) print $$0; }' > $@
	26
	27	clean:
	28	rm -f lguest.lds lguest