forked from luck/tmp_suning_uos_patched
tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file
As traceevent is going to be transferred into a proper library, its local data should be protected from the library users. This patch encapsulates struct tep_handler into a local header, not visible outside of the library. It implements also a bunch of new APIs, which library users can use to access tep_handler members. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linux trace devel <linux-trace-devel@vger.kernel.org> Cc: tzvetomir stoyanov <tstoyanov@vmware.com> Link: http://lkml.kernel.org/r/20181005122225.522155df@gandalf.local.home Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tzvetomir Stoyanov
Arnaldo Carvalho de Melo
parent
bbbab191c2
commit
bb3dd7e7c4
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@ -5,6 +5,7 @@ libtraceevent-y += parse-filter.o
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libtraceevent-y += parse-utils.o
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libtraceevent-y += kbuffer-parse.o
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libtraceevent-y += tep_strerror.o
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libtraceevent-y += event-parse-api.o
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plugin_jbd2-y += plugin_jbd2.o
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plugin_hrtimer-y += plugin_hrtimer.o
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275
tools/lib/traceevent/event-parse-api.c
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275
tools/lib/traceevent/event-parse-api.c
Normal file
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@ -0,0 +1,275 @@
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// SPDX-License-Identifier: LGPL-2.1
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/*
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* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
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*
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*/
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#include "event-parse.h"
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#include "event-parse-local.h"
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#include "event-utils.h"
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/**
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* tep_get_first_event - returns the first event in the events array
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* @tep: a handle to the tep_handle
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*
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* This returns pointer to the first element of the events array
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* If @tep is NULL, NULL is returned.
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*/
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struct tep_event_format *tep_get_first_event(struct tep_handle *tep)
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{
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if (tep && tep->events)
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return tep->events[0];
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return NULL;
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}
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/**
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* tep_get_events_count - get the number of defined events
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* @tep: a handle to the tep_handle
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*
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* This returns number of elements in event array
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* If @tep is NULL, 0 is returned.
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*/
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int tep_get_events_count(struct tep_handle *tep)
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{
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if(tep)
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return tep->nr_events;
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return 0;
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}
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/**
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* tep_set_flag - set event parser flag
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* @tep: a handle to the tep_handle
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* @flag: flag, or combination of flags to be set
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* can be any combination from enum tep_flag
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*
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* This sets a flag or mbination of flags from enum tep_flag
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*/
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void tep_set_flag(struct tep_handle *tep, int flag)
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{
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if(tep)
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tep->flags |= flag;
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}
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unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data)
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{
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unsigned short swap;
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if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
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return data;
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swap = ((data & 0xffULL) << 8) |
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((data & (0xffULL << 8)) >> 8);
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return swap;
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}
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unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data)
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{
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unsigned int swap;
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if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
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return data;
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swap = ((data & 0xffULL) << 24) |
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((data & (0xffULL << 8)) << 8) |
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((data & (0xffULL << 16)) >> 8) |
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((data & (0xffULL << 24)) >> 24);
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return swap;
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}
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unsigned long long
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__tep_data2host8(struct tep_handle *pevent, unsigned long long data)
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{
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unsigned long long swap;
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if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
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return data;
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swap = ((data & 0xffULL) << 56) |
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((data & (0xffULL << 8)) << 40) |
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((data & (0xffULL << 16)) << 24) |
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((data & (0xffULL << 24)) << 8) |
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((data & (0xffULL << 32)) >> 8) |
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((data & (0xffULL << 40)) >> 24) |
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((data & (0xffULL << 48)) >> 40) |
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((data & (0xffULL << 56)) >> 56);
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return swap;
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}
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/**
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* tep_get_header_page_size - get size of the header page
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* @pevent: a handle to the tep_handle
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*
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* This returns size of the header page
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_get_header_page_size(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->header_page_size_size;
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return 0;
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}
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/**
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* tep_get_cpus - get the number of CPUs
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* @pevent: a handle to the tep_handle
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*
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* This returns the number of CPUs
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_get_cpus(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->cpus;
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return 0;
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}
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/**
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* tep_set_cpus - set the number of CPUs
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* @pevent: a handle to the tep_handle
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*
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* This sets the number of CPUs
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*/
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void tep_set_cpus(struct tep_handle *pevent, int cpus)
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{
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if(pevent)
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pevent->cpus = cpus;
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}
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/**
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* tep_get_long_size - get the size of a long integer on the current machine
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* @pevent: a handle to the tep_handle
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*
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* This returns the size of a long integer on the current machine
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_get_long_size(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->long_size;
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return 0;
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}
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/**
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* tep_set_long_size - set the size of a long integer on the current machine
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* @pevent: a handle to the tep_handle
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* @size: size, in bytes, of a long integer
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*
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* This sets the size of a long integer on the current machine
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*/
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void tep_set_long_size(struct tep_handle *pevent, int long_size)
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{
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if(pevent)
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pevent->long_size = long_size;
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}
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/**
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* tep_get_page_size - get the size of a memory page on the current machine
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* @pevent: a handle to the tep_handle
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*
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* This returns the size of a memory page on the current machine
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_get_page_size(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->page_size;
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return 0;
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}
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/**
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* tep_set_page_size - set the size of a memory page on the current machine
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* @pevent: a handle to the tep_handle
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* @_page_size: size of a memory page, in bytes
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*
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* This sets the size of a memory page on the current machine
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*/
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void tep_set_page_size(struct tep_handle *pevent, int _page_size)
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{
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if(pevent)
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pevent->page_size = _page_size;
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}
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/**
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* tep_is_file_bigendian - get if the file is in big endian order
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* @pevent: a handle to the tep_handle
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*
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* This returns if the file is in big endian order
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_is_file_bigendian(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->file_bigendian;
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return 0;
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}
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/**
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* tep_set_file_bigendian - set if the file is in big endian order
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* @pevent: a handle to the tep_handle
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* @endian: non zero, if the file is in big endian order
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*
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* This sets if the file is in big endian order
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*/
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void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
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{
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if(pevent)
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pevent->file_bigendian = endian;
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}
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/**
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* tep_is_host_bigendian - get if the order of the current host is big endian
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* @pevent: a handle to the tep_handle
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*
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* This gets if the order of the current host is big endian
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_is_host_bigendian(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->host_bigendian;
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return 0;
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}
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/**
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* tep_set_host_bigendian - set the order of the local host
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* @pevent: a handle to the tep_handle
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* @endian: non zero, if the local host has big endian order
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*
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* This sets the order of the local host
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*/
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void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
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{
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if(pevent)
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pevent->host_bigendian = endian;
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}
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/**
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* tep_is_latency_format - get if the latency output format is configured
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* @pevent: a handle to the tep_handle
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*
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* This gets if the latency output format is configured
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* If @pevent is NULL, 0 is returned.
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*/
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int tep_is_latency_format(struct tep_handle *pevent)
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{
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if(pevent)
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return pevent->latency_format;
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return 0;
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}
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/**
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* tep_set_latency_format - set the latency output format
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* @pevent: a handle to the tep_handle
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* @lat: non zero for latency output format
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*
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* This sets the latency output format
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*/
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void tep_set_latency_format(struct tep_handle *pevent, int lat)
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{
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if(pevent)
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pevent->latency_format = lat;
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}
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92
tools/lib/traceevent/event-parse-local.h
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92
tools/lib/traceevent/event-parse-local.h
Normal file
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@ -0,0 +1,92 @@
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// SPDX-License-Identifier: LGPL-2.1
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/*
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* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
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*
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*/
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#ifndef _PARSE_EVENTS_INT_H
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#define _PARSE_EVENTS_INT_H
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struct cmdline;
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struct cmdline_list;
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struct func_map;
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struct func_list;
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struct event_handler;
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struct func_resolver;
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struct tep_handle {
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int ref_count;
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int header_page_ts_offset;
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int header_page_ts_size;
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int header_page_size_offset;
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int header_page_size_size;
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int header_page_data_offset;
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int header_page_data_size;
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int header_page_overwrite;
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enum tep_endian file_bigendian;
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enum tep_endian host_bigendian;
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int latency_format;
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int old_format;
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int cpus;
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int long_size;
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int page_size;
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struct cmdline *cmdlines;
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struct cmdline_list *cmdlist;
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int cmdline_count;
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struct func_map *func_map;
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struct func_resolver *func_resolver;
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struct func_list *funclist;
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unsigned int func_count;
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struct printk_map *printk_map;
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struct printk_list *printklist;
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unsigned int printk_count;
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struct tep_event_format **events;
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int nr_events;
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struct tep_event_format **sort_events;
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enum tep_event_sort_type last_type;
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int type_offset;
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int type_size;
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int pid_offset;
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int pid_size;
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int pc_offset;
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int pc_size;
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int flags_offset;
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int flags_size;
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int ld_offset;
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int ld_size;
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int print_raw;
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int test_filters;
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int flags;
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struct tep_format_field *bprint_ip_field;
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struct tep_format_field *bprint_fmt_field;
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struct tep_format_field *bprint_buf_field;
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struct event_handler *handlers;
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struct tep_function_handler *func_handlers;
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/* cache */
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struct tep_event_format *last_event;
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char *trace_clock;
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};
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#endif /* _PARSE_EVENTS_INT_H */
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@ -22,6 +22,8 @@
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#include <netinet/in.h>
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#include "event-parse.h"
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#include "event-parse-local.h"
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#include "event-utils.h"
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#include "trace-seq.h"
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@ -405,145 +405,14 @@ void tep_print_plugins(struct trace_seq *s,
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const char *prefix, const char *suffix,
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const struct tep_plugin_list *list);
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struct cmdline;
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struct cmdline_list;
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struct func_map;
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struct func_list;
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struct event_handler;
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struct func_resolver;
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/* tep_handle */
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typedef char *(tep_func_resolver_t)(void *priv,
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unsigned long long *addrp, char **modp);
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struct tep_handle {
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int ref_count;
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int header_page_ts_offset;
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int header_page_ts_size;
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int header_page_size_offset;
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int header_page_size_size;
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int header_page_data_offset;
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int header_page_data_size;
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int header_page_overwrite;
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int file_bigendian;
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int host_bigendian;
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int latency_format;
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int old_format;
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int cpus;
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int long_size;
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int page_size;
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struct cmdline *cmdlines;
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struct cmdline_list *cmdlist;
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int cmdline_count;
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struct func_map *func_map;
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struct func_resolver *func_resolver;
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struct func_list *funclist;
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unsigned int func_count;
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struct printk_map *printk_map;
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struct printk_list *printklist;
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unsigned int printk_count;
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struct tep_event_format **events;
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int nr_events;
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struct tep_event_format **sort_events;
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enum tep_event_sort_type last_type;
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int type_offset;
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int type_size;
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int pid_offset;
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int pid_size;
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int pc_offset;
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int pc_size;
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int flags_offset;
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int flags_size;
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int ld_offset;
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int ld_size;
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int print_raw;
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int test_filters;
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int flags;
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struct tep_format_field *bprint_ip_field;
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struct tep_format_field *bprint_fmt_field;
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struct tep_format_field *bprint_buf_field;
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struct event_handler *handlers;
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struct tep_function_handler *func_handlers;
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/* cache */
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struct tep_event_format *last_event;
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char *trace_clock;
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};
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static inline void tep_set_flag(struct tep_handle *pevent, int flag)
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{
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pevent->flags |= flag;
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}
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static inline unsigned short
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__tep_data2host2(struct tep_handle *pevent, unsigned short data)
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{
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unsigned short swap;
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if (pevent->host_bigendian == pevent->file_bigendian)
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return data;
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swap = ((data & 0xffULL) << 8) |
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((data & (0xffULL << 8)) >> 8);
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return swap;
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}
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static inline unsigned int
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__tep_data2host4(struct tep_handle *pevent, unsigned int data)
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{
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unsigned int swap;
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|
||||
if (pevent->host_bigendian == pevent->file_bigendian)
|
||||
return data;
|
||||
|
||||
swap = ((data & 0xffULL) << 24) |
|
||||
((data & (0xffULL << 8)) << 8) |
|
||||
((data & (0xffULL << 16)) >> 8) |
|
||||
((data & (0xffULL << 24)) >> 24);
|
||||
|
||||
return swap;
|
||||
}
|
||||
|
||||
static inline unsigned long long
|
||||
__tep_data2host8(struct tep_handle *pevent, unsigned long long data)
|
||||
{
|
||||
unsigned long long swap;
|
||||
|
||||
if (pevent->host_bigendian == pevent->file_bigendian)
|
||||
return data;
|
||||
|
||||
swap = ((data & 0xffULL) << 56) |
|
||||
((data & (0xffULL << 8)) << 40) |
|
||||
((data & (0xffULL << 16)) << 24) |
|
||||
((data & (0xffULL << 24)) << 8) |
|
||||
((data & (0xffULL << 32)) >> 8) |
|
||||
((data & (0xffULL << 40)) >> 24) |
|
||||
((data & (0xffULL << 48)) >> 40) |
|
||||
((data & (0xffULL << 56)) >> 56);
|
||||
|
||||
return swap;
|
||||
}
|
||||
void tep_set_flag(struct tep_handle *tep, int flag);
|
||||
unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data);
|
||||
unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data);
|
||||
unsigned long long
|
||||
__tep_data2host8(struct tep_handle *pevent, unsigned long long data);
|
||||
|
||||
#define tep_data2host2(pevent, ptr) __tep_data2host2(pevent, *(unsigned short *)(ptr))
|
||||
#define tep_data2host4(pevent, ptr) __tep_data2host4(pevent, *(unsigned int *)(ptr))
|
||||
|
|
@ -655,11 +524,12 @@ unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, i
|
|||
int tep_read_number_field(struct tep_format_field *field, const void *data,
|
||||
unsigned long long *value);
|
||||
|
||||
struct tep_event_format *tep_get_first_event(struct tep_handle *tep);
|
||||
int tep_get_events_count(struct tep_handle *tep);
|
||||
struct tep_event_format *tep_find_event(struct tep_handle *pevent, int id);
|
||||
|
||||
struct tep_event_format *
|
||||
tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
|
||||
|
||||
struct tep_event_format *
|
||||
tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
|
||||
|
||||
|
|
@ -689,65 +559,23 @@ struct tep_event_format **tep_list_events(struct tep_handle *pevent, enum tep_ev
|
|||
struct tep_format_field **tep_event_common_fields(struct tep_event_format *event);
|
||||
struct tep_format_field **tep_event_fields(struct tep_event_format *event);
|
||||
|
||||
static inline int tep_get_cpus(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->cpus;
|
||||
}
|
||||
|
||||
static inline void tep_set_cpus(struct tep_handle *pevent, int cpus)
|
||||
{
|
||||
pevent->cpus = cpus;
|
||||
}
|
||||
|
||||
static inline int tep_get_long_size(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->long_size;
|
||||
}
|
||||
|
||||
static inline void tep_set_long_size(struct tep_handle *pevent, int long_size)
|
||||
{
|
||||
pevent->long_size = long_size;
|
||||
}
|
||||
|
||||
static inline int tep_get_page_size(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->page_size;
|
||||
}
|
||||
|
||||
static inline void tep_set_page_size(struct tep_handle *pevent, int _page_size)
|
||||
{
|
||||
pevent->page_size = _page_size;
|
||||
}
|
||||
|
||||
static inline int tep_is_file_bigendian(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->file_bigendian;
|
||||
}
|
||||
|
||||
static inline void tep_set_file_bigendian(struct tep_handle *pevent, int endian)
|
||||
{
|
||||
pevent->file_bigendian = endian;
|
||||
}
|
||||
|
||||
static inline int tep_is_host_bigendian(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->host_bigendian;
|
||||
}
|
||||
|
||||
static inline void tep_set_host_bigendian(struct tep_handle *pevent, int endian)
|
||||
{
|
||||
pevent->host_bigendian = endian;
|
||||
}
|
||||
|
||||
static inline int tep_is_latency_format(struct tep_handle *pevent)
|
||||
{
|
||||
return pevent->latency_format;
|
||||
}
|
||||
|
||||
static inline void tep_set_latency_format(struct tep_handle *pevent, int lat)
|
||||
{
|
||||
pevent->latency_format = lat;
|
||||
}
|
||||
enum tep_endian {
|
||||
TEP_LITTLE_ENDIAN = 0,
|
||||
TEP_BIG_ENDIAN
|
||||
};
|
||||
int tep_get_cpus(struct tep_handle *pevent);
|
||||
void tep_set_cpus(struct tep_handle *pevent, int cpus);
|
||||
int tep_get_long_size(struct tep_handle *pevent);
|
||||
void tep_set_long_size(struct tep_handle *pevent, int long_size);
|
||||
int tep_get_page_size(struct tep_handle *pevent);
|
||||
void tep_set_page_size(struct tep_handle *pevent, int _page_size);
|
||||
int tep_is_file_bigendian(struct tep_handle *pevent);
|
||||
void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
|
||||
int tep_is_host_bigendian(struct tep_handle *pevent);
|
||||
void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
|
||||
int tep_is_latency_format(struct tep_handle *pevent);
|
||||
void tep_set_latency_format(struct tep_handle *pevent, int lat);
|
||||
int tep_get_header_page_size(struct tep_handle *pevent);
|
||||
|
||||
struct tep_handle *tep_alloc(void);
|
||||
void tep_free(struct tep_handle *pevent);
|
||||
|
|
|
|||
|
|
@ -14,6 +14,7 @@
|
|||
#include <unistd.h>
|
||||
#include <dirent.h>
|
||||
#include "event-parse.h"
|
||||
#include "event-parse-local.h"
|
||||
#include "event-utils.h"
|
||||
#include "trace-seq.h"
|
||||
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@
|
|||
#include <sys/types.h>
|
||||
|
||||
#include "event-parse.h"
|
||||
#include "event-parse-local.h"
|
||||
#include "event-utils.h"
|
||||
|
||||
#define COMM "COMM"
|
||||
|
|
|
|||
|
|
@ -37,10 +37,11 @@ static int get_common_field(struct scripting_context *context,
|
|||
struct tep_format_field *field;
|
||||
|
||||
if (!*size) {
|
||||
if (!pevent->events)
|
||||
|
||||
event = tep_get_first_event(pevent);
|
||||
if (!event)
|
||||
return 0;
|
||||
|
||||
event = pevent->events[0];
|
||||
field = tep_find_common_field(event, type);
|
||||
if (!field)
|
||||
return 0;
|
||||
|
|
@ -193,25 +194,29 @@ struct tep_event_format *trace_find_next_event(struct tep_handle *pevent,
|
|||
struct tep_event_format *event)
|
||||
{
|
||||
static int idx;
|
||||
int events_count;
|
||||
struct tep_event_format *all_events;
|
||||
|
||||
if (!pevent || !pevent->events)
|
||||
all_events = tep_get_first_event(pevent);
|
||||
events_count = tep_get_events_count(pevent);
|
||||
if (!pevent || !all_events || events_count < 1)
|
||||
return NULL;
|
||||
|
||||
if (!event) {
|
||||
idx = 0;
|
||||
return pevent->events[0];
|
||||
return all_events;
|
||||
}
|
||||
|
||||
if (idx < pevent->nr_events && event == pevent->events[idx]) {
|
||||
if (idx < events_count && event == (all_events + idx)) {
|
||||
idx++;
|
||||
if (idx == pevent->nr_events)
|
||||
if (idx == events_count)
|
||||
return NULL;
|
||||
return pevent->events[idx];
|
||||
return (all_events + idx);
|
||||
}
|
||||
|
||||
for (idx = 1; idx < pevent->nr_events; idx++) {
|
||||
if (event == pevent->events[idx - 1])
|
||||
return pevent->events[idx];
|
||||
for (idx = 1; idx < events_count; idx++) {
|
||||
if (event == (all_events + (idx - 1)))
|
||||
return (all_events + idx);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -241,7 +241,7 @@ static int read_header_files(struct tep_handle *pevent)
|
|||
* The commit field in the page is of type long,
|
||||
* use that instead, since it represents the kernel.
|
||||
*/
|
||||
tep_set_long_size(pevent, pevent->header_page_size_size);
|
||||
tep_set_long_size(pevent, tep_get_header_page_size(pevent));
|
||||
}
|
||||
free(header_page);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user