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| author | Daniel P. Berrange <berrange@redhat.com> | 2015-09-02 10:57:27 +0100 |
|---|---|---|
| committer | Daniel P. Berrange <berrange@redhat.com> | 2015-09-15 14:18:18 +0100 |
| commit | fb37726db77b21f3731b90693d2c93ade1777528 (patch) | |
| tree | 03e6990ab7b59cd867f3a27925246107ffe9600a /Makefile.objs | |
| parent | b124533e069a6624316da2096d170b0bd9197d86 (diff) | |
| download | hqemu-fb37726db77b21f3731b90693d2c93ade1777528.zip hqemu-fb37726db77b21f3731b90693d2c93ade1777528.tar.gz | |
crypto: move crypto objects out of libqemuutil.la
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). We avoid pulling
entire of crypto-obj-y into the userspace emulators as that
would force them to link to gnutls too, which is not required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'Makefile.objs')
| -rw-r--r-- | Makefile.objs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Makefile.objs b/Makefile.objs index f094eff..655c1f0 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 +20,11 @@ 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/ +crypto-aes-obj-y = crypto/ ###################################################################### # smartcard |
