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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-22 11:03:26 +1000 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-23 15:49:50 +1000 |
| commit | 3c6b5bfa3cf3b4057788e08482a468cc3bc00780 (patch) | |
| tree | f0d67890f6f8c9d0840c9b19a483ec06cbf822ef /Documentation/lguest/Makefile | |
| parent | 6649bb7af6a819b675bfcf22ab704737e905645a (diff) | |
| download | linux-3.10-3c6b5bfa3cf3b4057788e08482a468cc3bc00780.tar.gz linux-3.10-3c6b5bfa3cf3b4057788e08482a468cc3bc00780.tar.bz2 linux-3.10-3c6b5bfa3cf3b4057788e08482a468cc3bc00780.zip | |
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/Makefile | 26 |
1 files changed, 3 insertions, 23 deletions
diff --git a/Documentation/lguest/Makefile b/Documentation/lguest/Makefile index 526c15fd83a..bac037eb1cd 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 |