c0b0a9bce9
For driver debugging, it is helpful to know whether the driver has actually
submitted an event to the server. dtrace hooks can help here.
Note that GetPointerEvents and friends may also be triggered by the server
for other emulated devices, some care must be taken when analysing the
results.
Additional difficulty: proximity events have a run-time assigned type, so
this may make automatic detection a tad harder. If in doubt, go for any
event > 64 since the only two that can have that value are ProximityIn and
ProximityOut.
An example systemtap script is below:
# Compile+run with
# stap -g xorg.stp /usr/bin/Xorg
#
function print_valuators:string(nvaluators:long, mask_in:long, valuators_in:long) %{
int i;
unsigned char *mask = (unsigned char*)THIS->mask_in;
double *valuators = (double*)THIS->valuators_in;
char str[128] = {0};
char *s = str;
#define BitIsSet(ptr, bit) (((unsigned char*)(ptr))[(bit)>>3] & (1 << ((bit) & 7)))
s += sprintf(s, "nval: %d ::", (int)THIS->nvaluators);
for (i = 0; i < THIS->nvaluators; i++)
{
s += sprintf(s, " %d: ", i);
if (BitIsSet(mask, i))
s += sprintf(s, "%d", (int)valuators[i]);
}
sprintf(THIS->__retvalue, "%s", str);
%}
probe process(@1).mark("input__event")
{
deviceid = $arg1
type = $arg2
detail = $arg3
flags = $arg4
nvaluators = $arg5
str = print_valuators(nvaluators, $arg6, $arg7)
printf("Event: device %d type %d detail %d flags %#x %s\n",
deviceid, type, detail, flags, str);
}
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Jeremy Huddleston <jeremyhu@apple.com>
100 lines
4.2 KiB
C
100 lines
4.2 KiB
C
/* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Generated by dtrace(1M), and then modified for backwards compatibility
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* with older versions of dtrace. Used if dtrace -h fails.
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* (Since _ENABLED support was added after dtrace -h, this assumes if
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* dtrace -h fails, _ENABLED will too.)
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*/
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#ifndef _XSERVER_DTRACE_H
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#define _XSERVER_DTRACE_H
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#include <unistd.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if _DTRACE_VERSION
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#define XSERVER_CLIENT_AUTH(arg0, arg1, arg2, arg3) \
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__dtrace_Xserver___client__auth(arg0, arg1, arg2, arg3)
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#define XSERVER_CLIENT_CONNECT(arg0, arg1) \
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__dtrace_Xserver___client__connect(arg0, arg1)
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#define XSERVER_CLIENT_DISCONNECT(arg0) \
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__dtrace_Xserver___client__disconnect(arg0)
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#define XSERVER_REQUEST_DONE(arg0, arg1, arg2, arg3, arg4) \
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__dtrace_Xserver___request__done(arg0, arg1, arg2, arg3, arg4)
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#define XSERVER_REQUEST_START(arg0, arg1, arg2, arg3, arg4) \
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__dtrace_Xserver___request__start(arg0, arg1, arg2, arg3, arg4)
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#define XSERVER_RESOURCE_ALLOC(arg0, arg1, arg2, arg3) \
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__dtrace_Xserver___resource__alloc(arg0, arg1, arg2, arg3)
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#define XSERVER_RESOURCE_FREE(arg0, arg1, arg2, arg3) \
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__dtrace_Xserver___resource__free(arg0, arg1, arg2, arg3)
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#define XSERVER_SEND_EVENT(arg0, arg1, arg2) \
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__dtrace_Xserver___send__event(arg0, arg1, arg2)
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#define XSERVER_INPUT_EVENT(arg0, arg1, arg2, arg3, arg4, arg5, arg6) \
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__dtrace_Xserver___input__event(arg0, arg1, arg2, arg3, arg4, arg5, arg6)
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extern void __dtrace_Xserver___client__auth(int, string, pid_t, zoneid_t);
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extern void __dtrace_Xserver___client__connect(int, int);
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extern void __dtrace_Xserver___client__disconnect(int);
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extern void __dtrace_Xserver___request__done(string, uint8_t, uint32_t, int, int);
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extern void __dtrace_Xserver___request__start(string, uint8_t, uint16_t, int, void *);
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extern void __dtrace_Xserver___resource__alloc(uint32_t, uint32_t, void *, string);
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extern void __dtrace_Xserver___resource__free(uint32_t, uint32_t, void *, string);
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extern void __dtrace_Xserver___send__event(int, uint8_t, void *);
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extern void __dtrace_Xserver___input__event(int, uint16_t, uint32_t, uint32_t, int8_t, uint8_t *, double *);
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#else
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#define XSERVER_CLIENT_AUTH(arg0, arg1, arg2, arg3)
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#define XSERVER_CLIENT_CONNECT(arg0, arg1)
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#define XSERVER_CLIENT_DISCONNECT(arg0)
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#define XSERVER_REQUEST_DONE(arg0, arg1, arg2, arg3, arg4)
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#define XSERVER_REQUEST_START(arg0, arg1, arg2, arg3, arg4)
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#define XSERVER_RESOURCE_ALLOC(arg0, arg1, arg2, arg3)
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#define XSERVER_RESOURCE_FREE(arg0, arg1, arg2, arg3)
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#define XSERVER_SEND_EVENT(arg0, arg1, arg2)
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#define XSERVER_INPUT_EVENT(arg0, arg1, arg2, arg3, arg4, arg5, arg6)
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#endif
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#define XSERVER_CLIENT_AUTH_ENABLED() (1)
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#define XSERVER_CLIENT_CONNECT_ENABLED() (1)
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#define XSERVER_CLIENT_DISCONNECT_ENABLED() (1)
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#define XSERVER_REQUEST_DONE_ENABLED() (1)
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#define XSERVER_REQUEST_START_ENABLED() (1)
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#define XSERVER_RESOURCE_ALLOC_ENABLED() (1)
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#define XSERVER_RESOURCE_FREE_ENABLED() (1)
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#define XSERVER_SEND_EVENT_ENABLED() (1)
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#define XSERVER_INPUT_EVENT_ENABLED() (1)
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#ifdef __cplusplus
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}
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#endif
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#endif /* _XSERVER_DTRACE_H */
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