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authorRusty Russell <rusty@rustcorp.com.au>2007-10-22 11:03:26 +1000
committerRusty Russell <rusty@rustcorp.com.au>2007-10-23 15:49:50 +1000
commit3c6b5bfa3cf3b4057788e08482a468cc3bc00780 (patch)
treef0d67890f6f8c9d0840c9b19a483ec06cbf822ef /Documentation/lguest/Makefile
parent6649bb7af6a819b675bfcf22ab704737e905645a (diff)
Introduce guest mem offset, static link example launcher
In order to avoid problematic special linking of the Launcher, we give the Host an offset: this means we can use any memory region in the Launcher as Guest memory rather than insisting on mmap() at 0. The result is quite pleasing: a number of casts are replaced with simple additions. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'Documentation/lguest/Makefile')
-rw-r--r--Documentation/lguest/Makefile26
1 files changed, 3 insertions, 23 deletions
diff --git a/Documentation/lguest/Makefile b/Documentation/lguest/Makefile
index 526c15fd83af..bac037eb1cda 100644
--- a/Documentation/lguest/Makefile
+++ b/Documentation/lguest/Makefile
@@ -1,28 +1,8 @@
# 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
+CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include
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; }' > $@
+all: lguest
clean:
- rm -f lguest.lds lguest
+ rm -f lguest