Adding the same directory multiple times to trace-events-subdirs
might trigger build failures, in particular when using the LTTng
Userspace Tracer library as backend.
For example when using two times the hw/core/ directory:
$ ./configure --enable-trace-backends=ust && make
[...]
CC trace-ust-all.o
In file included from trace-ust-all.h:13,
from trace-ust-all.c:13:
trace-ust-all.h:35151:1: error: redefinition of ‘__tracepoint_cb_qemu___loader_write_rom’
35151 | TRACEPOINT_EVENT(
| ^~~~~~~~~~~~~~~~
trace-ust-all.h:31791:1: note: previous definition of ‘__tracepoint_cb_qemu___loader_write_rom’ was here
31791 | TRACEPOINT_EVENT(
| ^~~~~~~~~~~~~~~~
To ease review and reduce likelihood of merge failures (see [*]),
keep trace-events-subdirs ordered when possible, following
eb7ccb3c0.
[*] https://www.mail-archive.com/qemu-devel@nongnu.org/msg671007.html
Duplicate trace-events-subdirs entries generates duplicated
symbols when using the LTTng Userspace Tracer library.
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id:
20200116114339.30670-1-philmd@redhat.com
Message-Id: <
20200116114339.30670-1-philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
trace-events-subdirs += scsi
endif
ifeq ($(CONFIG_SOFTMMU),y)
-trace-events-subdirs += chardev
trace-events-subdirs += audio
+trace-events-subdirs += chardev
trace-events-subdirs += hw/9pfs
trace-events-subdirs += hw/acpi
trace-events-subdirs += hw/alpha
trace-events-subdirs += net
trace-events-subdirs += ui
endif
+trace-events-subdirs += hw/core
trace-events-subdirs += hw/display
trace-events-subdirs += qapi
trace-events-subdirs += qom
trace-events-subdirs += target/s390x
trace-events-subdirs += target/sparc
trace-events-subdirs += util
-trace-events-subdirs += hw/core
trace-events-files = $(SRC_PATH)/trace-events $(trace-events-subdirs:%=$(SRC_PATH)/%/trace-events)