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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-10-06 11:39:10 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-10-31 00:21:42 +0200 |
| commit | 44d65ea1615099ae252407f2554338d450cfdb1c (patch) | |
| tree | 122999495aa15ccb3944bf064a0af76470c9e590 | |
| parent | 8424af5336b34043a705d66bdf2c1428048ef085 (diff) | |
| download | linux-44d65ea1615099ae252407f2554338d450cfdb1c.tar.gz linux-44d65ea1615099ae252407f2554338d450cfdb1c.tar.bz2 linux-44d65ea1615099ae252407f2554338d450cfdb1c.zip | |
ringtest: use link-time optimization
By using -flto and -fwhole-program, all functions from the ring implementation
can be treated as static and possibly inlined. Force this to happen through
the GCC flatten attribute.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | tools/virtio/ringtest/Makefile | 4 | ||||
| -rw-r--r-- | tools/virtio/ringtest/main.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/tools/virtio/ringtest/Makefile b/tools/virtio/ringtest/Makefile index 877a8a4721b6..c012edbdb13b 100644 --- a/tools/virtio/ringtest/Makefile +++ b/tools/virtio/ringtest/Makefile @@ -3,8 +3,8 @@ all: all: ring virtio_ring_0_9 virtio_ring_poll virtio_ring_inorder ptr_ring noring CFLAGS += -Wall -CFLAGS += -pthread -O2 -ggdb -LDFLAGS += -pthread -O2 -ggdb +CFLAGS += -pthread -O2 -ggdb -flto -fwhole-program +LDFLAGS += -pthread -O2 -ggdb -flto -fwhole-program main.o: main.c main.h ring.o: ring.c main.h diff --git a/tools/virtio/ringtest/main.c b/tools/virtio/ringtest/main.c index 147abb452a6c..bda7f0dad981 100644 --- a/tools/virtio/ringtest/main.c +++ b/tools/virtio/ringtest/main.c @@ -96,7 +96,7 @@ void set_affinity(const char *arg) assert(!ret); } -static void run_guest(void) +static void __attribute__((__flatten__)) run_guest(void) { int completed_before; int completed = 0; @@ -149,7 +149,7 @@ static void run_guest(void) } } -static void run_host(void) +static void __attribute__((__flatten__)) run_host(void) { int completed_before; int completed = 0; |