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Daniel P. Berrange fe4db84d49 trace: provide mechanism for registering trace events 
Remove the notion of there being a single global array
of trace events, by introducing a method for registering
groups of events.

The module_call_init() needs to be invoked at the start
of any program that wants to make use of the trace
support. Currently this covers system emulators qemu-nbd,
qemu-img and qemu-io.

[Squashed the following fix from Daniel P. Berrange
<berrange@redhat.com>:

linux-user/bsd-user: initialize trace events subsystem

The bsd-user/linux-user programs make use of the CPU emulation
code and this now requires that the trace events subsystem
is enabled, otherwise it'll crash trying to allocate an empty
trace events bitmap for the CPU object.

--Stefan]

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1475588159-30598-14-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 		2016-10-12 09:52:50 +02:00
..
coccinelle coccinelle: add a script to remove useless casts 2016-09-15 15:32:22 +03:00
kvm vmxcap: Add TSC scaling bit 2016-09-13 19:08:46 +02:00
modules scripts: Allow block module to not define BlockDriver 2016-10-07 14:14:06 +02:00
qemu-guest-agent qemu-ga: sample fsfreeze hooks 2013-01-08 16:38:12 -06:00
qemugdb scripts/gdb: Fix a python exception in mtree.py 2015-12-22 16:01:08 +08:00
qmp scripts: ensure monitor socket has SO_REUSEADDR set 2016-07-22 13:23:35 +05:30
tracetool trace: provide mechanism for registering trace events 2016-10-12 09:52:50 +02:00
analyse-9p-simpletrace.py scripts/analyse-9p-simpletrace.py: Add symbolic names for 9p operations. 2011-12-21 12:37:23 +05:30
analyze-inclusions scripts: add script to build QEMU and analyze inclusions 2016-05-19 12:09:28 +02:00
analyze-migration.py migration: fix analyze-migration.py script 2015-11-04 13:40:13 +01:00
check-qerror.sh qerror: add check-qerror.sh to verify alphabetical order 2012-01-18 10:23:39 -02:00
checkpatch.pl checkpatch: downgrade "architecture specific defines should be avoided" 2016-09-27 11:57:29 +02:00
clean-header-guards.pl scripts: New clean-header-guards.pl 2016-07-12 16:19:16 +02:00
clean-includes os-posix: include sys/mman.h 2016-06-16 18:39:03 +02:00
cleanup-trace-events.pl cleanup-trace-events.pl: Tighten search for trace event call 2014-09-26 09:34:38 +01:00
cocci-macro-file.h coccinelle: add g_assert_cmp* to macro file 2016-05-23 16:53:46 +02:00
coverity-model.c coverity: Model g_memdup() 2015-12-17 17:33:49 +01:00
create_config build-sys: define QEMU_VERSION_{MAJOR, MINOR, MICRO} 2016-09-19 17:32:21 +02:00
disas-objdump.pl disas-objdump: Pass --adjust-vma to objdump 2013-08-24 07:26:45 +02:00
dump-guest-memory.py exec: hide mr->ram_addr from qemu_get_ram_ptr users 2016-05-29 09:11:12 +02:00
extract-vsssdk-headers Add a script to extract VSS SDK headers on POSIX system 2013-09-09 14:17:56 -05:00
feature_to_c.sh scripts: Use $(..) instead of deprecated `..` 2016-06-07 18:19:23 +03:00
get_maintainer.pl get_maintainer.pl: fall back to git if only lists are found 2016-02-09 17:07:55 +01:00
gtester-cat test makefile overhaul 2012-03-30 08:14:11 -05:00
hxtool vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
make-release make-release: Record SeaBIOS version 2014-03-31 15:02:04 +01:00
make_device_config.sh scripts: Use $(..) instead of deprecated `..` 2016-06-07 18:19:23 +03:00
ordereddict.py qapi: Clean up qapi.py per pep8 2015-10-12 18:44:54 +02:00
qapi-commands.py qapi: check invalid arguments on no-args commands 2016-09-19 17:32:22 +02:00
qapi-event.py qapi: Implement boxed types for commands/events 2016-07-19 13:21:08 +02:00
qapi-introspect.py qapi: Plumb in 'boxed' to qapi generator lower levels 2016-07-19 13:21:08 +02:00
qapi-types.py qapi: Add type.is_empty() helper 2016-07-19 13:21:08 +02:00
qapi-visit.py qapi: Drop useless gen_err_check() 2016-07-19 13:21:08 +02:00
qapi.py qapi: Implement boxed types for commands/events 2016-07-19 13:21:08 +02:00
qemu-binfmt-conf.sh scripts: Use $(..) instead of deprecated `..` 2016-06-07 18:19:23 +03:00
qemu-gdb.py gdb command: qemu handlers 2015-10-29 17:59:27 +00:00
qemu.py iotest: fix python based IO tests 2016-07-26 18:28:40 +02:00
qtest.py iotest: fix python based IO tests 2016-07-26 18:28:40 +02:00
refresh-pxe-roms.sh roms: rewrite scripts/refresh-pxe-roms.sh 2013-09-30 09:44:35 +02:00
shaderinclude.pl opengl: add shader build infrastructure 2015-05-05 09:03:32 +02:00
show-fixed-bugs.sh scripts: Add a script to check for bug URLs in the git log 2016-09-22 20:20:53 +02:00
signrom.py linuxboot_dma: avoid guest ABI breakage on gcc vs. clang compilation 2016-08-09 22:57:36 +02:00
simpletrace.py trace: emit name <-> ID mapping in simpletrace header 2016-10-12 09:35:54 +02:00
switch-timer-api misc: Fix case Qemu -> QEMU 2014-02-15 16:10:25 +04:00
texi2pod.pl scripts/text2pod.pl: Escape left brace 2015-11-02 14:50:27 +01:00
tracetool.py Revert "tracetool: use Python 2.4-compatible exception handling syntax" 2016-02-08 17:29:54 +01:00
update-linux-headers.sh scripts: Use $(..) instead of deprecated `..` 2016-06-07 18:19:23 +03:00
vmstate-static-checker.py vmstate-static-checker: fix size mismatch detection in unused fields 2016-06-17 18:24:33 +05:30