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b843e9c3a2
In order to make libtraceevent into a proper library, variables, data structures and functions require a unique prefix to prevent name space conflicts. That prefix will be "tep_" and not "pevent_". This changes APIs: pevent_register_print_function, pevent_unregister_print_function, pevent_register_event_handler, pevent_unregister_event_handler, pevent_register_function, pevent_register_trace_clock Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yordan Karadzhov (VMware) <y.karadz@gmail.com> Cc: linux-trace-devel@vger.kernel.org Link: http://lkml.kernel.org/r/20180808180702.524813185@goodmis.org Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
44 lines
969 B
C
44 lines
969 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <endian.h>
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#include "event-parse.h"
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/*
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* From glibc endian.h, for older systems where it is not present, e.g.: RHEL5,
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* Fedora6.
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*/
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#ifndef le16toh
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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# define le16toh(x) (x)
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# else
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# define le16toh(x) __bswap_16 (x)
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# endif
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#endif
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static unsigned long long
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process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
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{
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uint16_t *val = (uint16_t *) (unsigned long) args[0];
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return val ? (long long) le16toh(*val) : 0;
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}
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int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
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{
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tep_register_print_function(pevent,
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process___le16_to_cpup,
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TEP_FUNC_ARG_INT,
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"__le16_to_cpup",
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TEP_FUNC_ARG_PTR,
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TEP_FUNC_ARG_VOID);
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return 0;
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}
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void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
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{
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tep_unregister_print_function(pevent, process___le16_to_cpup,
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"__le16_to_cpup");
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}
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