qemu-e2k/bsd-user
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
..
freebsd bsd-user: Fix syscall format, add strace support for more syscalls 2014-06-11 00:25:06 +01:00
i386 Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
netbsd
openbsd
sparc Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
sparc64 Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
x86_64 Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
bsd-mman.h
bsdload.c bsd-user: Clean up includes 2016-02-04 17:01:04 +00:00
elfload.c os-posix: include sys/mman.h 2016-06-16 18:39:03 +02:00
errno_defs.h
main.c trace: provide mechanism for registering trace events 2016-10-12 09:52:50 +02:00
Makefile.objs build: move *-user/ objects to nested Makefile.objs 2012-06-07 07:17:33 +02:00
mmap.c os-posix: include sys/mman.h 2016-06-16 18:39:03 +02:00
qemu.h exec: Reduce CONFIG_USER_ONLY ifdeffenery 2016-07-26 15:31:58 -03:00
signal.c bsd-user: Clean up includes 2016-02-04 17:01:04 +00:00
strace.c bsd-user: Clean up includes 2016-02-04 17:01:04 +00:00
syscall_defs.h
syscall.c trace: [*-user] Add events to trace guest syscalls in syscall emulation mode 2016-06-28 21:14:12 +01:00
uaccess.c bsd-user: Suppress gcc 4.x -Wpointer-sign (included in -Wall) warning 2016-04-05 17:49:41 +01:00