lguest: avoid shared libraries mapped over guest memory
Some versions of ld.so mmap the shared libraries right in over guest memory, so compile lguest statically by default. [ FC7 maps shared libraries very low, where the launcher maps guest's physical memory. Quick fix is to link Launcher static, real fix is for 2.6.24. ] -static is a simple fix. I expect this problem will be more common than we like, as different distro's make different "improvements" to ld.so Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
0d027c01cd
commit
e3bcf5e278
|
@ -13,7 +13,9 @@ LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000)
|
||||||
|
|
||||||
CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -Wl,-T,lguest.lds
|
CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -Wl,-T,lguest.lds
|
||||||
LDLIBS:=-lz
|
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
|
all: lguest.lds lguest
|
||||||
|
|
||||||
# The linker script on x86 is so complex the only way of creating one
|
# The linker script on x86 is so complex the only way of creating one
|
||||||
|
|
Loading…
Reference in a new issue