| Rusty Russell | 8ca47e0 | 2007-07-19 01:49:29 -0700 | [diff] [blame] | 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 | |
| Rusty Russell | 6570c4599 | 2007-07-23 18:43:56 -0700 | [diff] [blame] | 14 | CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -Wl,-T,lguest.lds |
| Rusty Russell | 8ca47e0 | 2007-07-19 01:49:29 -0700 | [diff] [blame] | 15 | LDLIBS:=-lz |
| Ronald G. Minnich | e3bcf5e | 2007-08-09 21:07:24 +1000 | [diff] [blame] | 16 | # Removing this works for some versions of ld.so (eg. Ubuntu Feisty) and |
| 17 | # not others (eg. FC7). |
| 18 | LDFLAGS+=-static |
| Rusty Russell | 8ca47e0 | 2007-07-19 01:49:29 -0700 | [diff] [blame] | 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 |