hw/core: Move cpu.c, cpu.h from qom/ to hw/core/

2019-08-21T11:24:01+00:00

Suggested-by: Daniel P. Berrangé Signed-off-by: Markus Armbruster Message-Id: <20190709152053.16670-2-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé [Rebased onto merge commit 95a9457fd44; missed instances of qom/cpu.h in comments replaced]

trace: Do not include qom/cpu.h into generated trace.h

2019-08-16T11:31:52+00:00

docs/devel/tracing.txt explains "since many source files include trace.h, [the generated trace.h use] a minimum of types and other header files included to keep the namespace clean and compile times and dependencies down." Commit 4815185902 "trace: Add per-vCPU tracing states for events with the 'vcpu' property" made them all include qom/cpu.h via control-internal.h. qom/cpu.h in turn includes about thirty headers. Ouch. Per-vCPU tracing is currently not supported in sub-directories' trace-events. In other words, qom/cpu.h can only be used in trace-root.h, not in any trace.h. Split trace/control-vcpu.h off trace/control.h and trace/control-internal.h. Have the generated trace.h include trace/control.h (which no longer includes qom/cpu.h), and trace-root.h include trace/control-vcpu.h (which includes it). The resulting improvement is a bit disappointing: in my "build everything" tree, some 1100 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h) depend on a trace.h, and about 600 of them no longer depend on qom/cpu.h. But more than 1300 others depend on trace-root.h. More work is clearly needed. Left for another day. Cc: Stefan Hajnoczi Signed-off-by: Markus Armbruster Reviewed-by: Stefan Hajnoczi Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé Message-Id: <20190812052359.30071-8-armbru@redhat.com>

bwlp/qemu.git/trace/control-vcpu.h, branch spice_video_codecs

hw/core: Move cpu.c, cpu.h from qom/ to hw/core/

trace: Do not include qom/cpu.h into generated trace.h