Future patches will be adding more crypto related APIs which rely on QOM infrastructure. This creates a problem, because QOM relies on library constructors to register objects. When you have a file in a static .a library though which is only referenced by a constructor the linker is dumb and will drop that file when linking to the final executable :-( The only workaround for this is to link the .a library to the executable using the -Wl,--whole-archive flag, but this creates its own set of problems because QEMU is relying on lazy linking for libqemuutil.a. Using --whole-archive majorly increases the size of final executables as they now contain a bunch of object code they don't actually use.
The least bad option is to thus not include the crypto objects in libqemuutil.la, and instead define a crypto-obj-y variable that is referenced directly by all the executables that need this code (tools + softmmu, but not qemu-ga). Signed-off-by: Daniel P. Berrange <berra...@redhat.com> --- Makefile | 8 +++++--- Makefile.objs | 5 ++++- Makefile.target | 2 ++ crypto/Makefile.objs | 10 +++++----- tests/Makefile | 7 ++++--- 5 files changed, 20 insertions(+), 12 deletions(-) diff --git a/Makefile b/Makefile index 9ce3972..bb06c4f 100644 --- a/Makefile +++ b/Makefile @@ -152,6 +152,7 @@ dummy := $(call unnest-vars,, \ qga-vss-dll-obj-y \ block-obj-y \ block-obj-m \ + crypto-obj-y \ common-obj-y \ common-obj-m) @@ -173,6 +174,7 @@ SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS)) SOFTMMU_SUBDIR_RULES=$(filter %-softmmu,$(SUBDIR_RULES)) $(SOFTMMU_SUBDIR_RULES): $(block-obj-y) +$(SOFTMMU_SUBDIR_RULES): $(crypto-obj-y) $(SOFTMMU_SUBDIR_RULES): config-all-devices.mak subdir-%: @@ -227,9 +229,9 @@ util/module.o-cflags = -D'CONFIG_BLOCK_MODULES=$(block-modules)' qemu-img.o: qemu-img-cmds.h -qemu-img$(EXESUF): qemu-img.o $(block-obj-y) libqemuutil.a libqemustub.a -qemu-nbd$(EXESUF): qemu-nbd.o $(block-obj-y) libqemuutil.a libqemustub.a -qemu-io$(EXESUF): qemu-io.o $(block-obj-y) libqemuutil.a libqemustub.a +qemu-img$(EXESUF): qemu-img.o $(block-obj-y) $(crypto-obj-y) libqemuutil.a libqemustub.a +qemu-nbd$(EXESUF): qemu-nbd.o $(block-obj-y) $(crypto-obj-y) libqemuutil.a libqemustub.a +qemu-io$(EXESUF): qemu-io.o $(block-obj-y) $(crypto-obj-y) libqemuutil.a libqemustub.a qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o diff --git a/Makefile.objs b/Makefile.objs index f094eff..c7ed989 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -2,7 +2,6 @@ # Common libraries for tools and emulators stub-obj-y = stubs/ util-obj-y = util/ qobject/ qapi/ qapi-types.o qapi-visit.o qapi-event.o -util-obj-y += crypto/ ####################################################################### # block-obj-y is code used by both qemu system emulation and qemu-img @@ -21,6 +20,10 @@ block-obj-y += coroutine-$(CONFIG_COROUTINE_BACKEND).o block-obj-m = block/ +####################################################################### +# crypto-obj-y is code used by both qemu system emulation and qemu-img + +crypto-obj-y = crypto/ ###################################################################### # smartcard diff --git a/Makefile.target b/Makefile.target index dc32294..8235202 100644 --- a/Makefile.target +++ b/Makefile.target @@ -170,12 +170,14 @@ target-obj-y-save := $(target-obj-y) dummy := $(call unnest-vars,.., \ block-obj-y \ block-obj-m \ + crypto-obj-y \ common-obj-y \ common-obj-m) target-obj-y := $(target-obj-y-save) all-obj-y += $(common-obj-y) all-obj-y += $(target-obj-y) all-obj-$(CONFIG_SOFTMMU) += $(block-obj-y) +all-obj-$(CONFIG_SOFTMMU) += $(crypto-obj-y) $(QEMU_PROG_BUILD): config-devices.mak diff --git a/crypto/Makefile.objs b/crypto/Makefile.objs index b050138..2cf5b70 100644 --- a/crypto/Makefile.objs +++ b/crypto/Makefile.objs @@ -1,5 +1,5 @@ -util-obj-y += init.o -util-obj-y += hash.o -util-obj-y += aes.o -util-obj-y += desrfb.o -util-obj-y += cipher.o +crypto-obj-y = init.o +crypto-obj-y += hash.o +crypto-obj-y += aes.o +crypto-obj-y += desrfb.o +crypto-obj-y += cipher.o diff --git a/tests/Makefile b/tests/Makefile index 0fcf148..d77ccee 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -290,7 +290,8 @@ test-qom-obj-y = qom/object.o qom/qom-qobject.o \ test-qapi-obj-y = tests/test-qapi-visit.o tests/test-qapi-types.o \ tests/test-qapi-event.o \ $(test-qom-obj-y) -test-block-obj-y = $(block-obj-y) $(test-util-obj-y) +test-crypto-obj-y = $(crypto-obj-y) $(test-util-obj-y) +test-block-obj-y = $(block-obj-y) $(test-crypto-obj-y) tests/check-qint$(EXESUF): tests/check-qint.o $(test-util-obj-y) tests/check-qstring$(EXESUF): tests/check-qstring.o $(test-util-obj-y) @@ -357,8 +358,8 @@ tests/test-opts-visitor$(EXESUF): tests/test-opts-visitor.o $(test-qapi-obj-y) tests/test-mul64$(EXESUF): tests/test-mul64.o $(test-util-obj-y) tests/test-bitops$(EXESUF): tests/test-bitops.o $(test-util-obj-y) -tests/test-crypto-hash$(EXESUF): tests/test-crypto-hash.o $(test-util-obj-y) -tests/test-crypto-cipher$(EXESUF): tests/test-crypto-cipher.o $(test-util-obj-y) +tests/test-crypto-hash$(EXESUF): tests/test-crypto-hash.o $(test-crypto-obj-y) +tests/test-crypto-cipher$(EXESUF): tests/test-crypto-cipher.o $(test-crypto-obj-y) libqos-obj-y = tests/libqos/pci.o tests/libqos/fw_cfg.o tests/libqos/malloc.o libqos-obj-y += tests/libqos/i2c.o tests/libqos/libqos.o -- 2.4.3