Markus Armbruster 13d4ff07e8 trace: Do not include qom/cpu.h into generated trace.h ... 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 <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-8-armbru@redhat.com>		2019-08-16 13:31:52 +02:00
..
control-internal.h	trace: Do not include qom/cpu.h into generated trace.h	2019-08-16 13:31:52 +02:00
control-target.c
control-vcpu.h	trace: Do not include qom/cpu.h into generated trace.h	2019-08-16 13:31:52 +02:00
control.c
control.h	trace: Do not include qom/cpu.h into generated trace.h	2019-08-16 13:31:52 +02:00
event-internal.h
ftrace.c	trace: handle tracefs path truncation	2019-03-22 15:55:50 +00:00
ftrace.h
Makefile.objs
mem-internal.h
mem.h
qmp.c	trace: Do not include qom/cpu.h into generated trace.h	2019-08-16 13:31:52 +02:00
simple.c	trace: Simplify how st_print_trace_file_status() prints	2019-04-18 22:18:59 +02:00
simple.h	trace: Simplify how st_print_trace_file_status() prints	2019-04-18 22:18:59 +02:00