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load_text_data_line() has been split out of the original trace
file loading loop. The original code incremented event count
at the points of code that had successfully completed importing
a single event. As the new function additionally now returns
a return code indicating success, this incrementation can be
done at the call site. This removes the need to pass a pointer
to the count variable and allows further cleanup of the code.
Signed-off-by: Tuukka Tikkanen <tuukka.tikkanen@linaro.org>
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Many of the source files were missing copyright headers. Headers have been
added to all .c and .h files and existing headers were updates with
contributor information.
The version number was bumped up to 0.5 due to having many new features
since last version number update.
Signed-off-by: Tuukka Tikkanen <tuukka.tikkanen@linaro.org>
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trace-cmd(1) related tools are convenient for getting and
processing traces using Ftrace Linux kernel internal tracer.
Usually, trace-cmd-report(1) is used to convert files from
trace-cmd's trace-cmd.dat(5) binary format to human readable
text files.
Signed-off-by: Koan-Sin Tan <freedom.tan@linaro.org>
Reviewed-by: Tuukka Tikkanen <tuukka.tikkanen@linaro.org>
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This patch separates loading of different trace file formats to
independent functions. In order to call the correct function for
each trace file processed, each load function comes with a match
function. Pointers to these functions are stored in a new
struct trace_ops.
In order to avoid static lists of trace file formats (e.g.
implemented as static arrays or a number of registration
function calls in main), pointers to all trace_ops structures
are collected by the linker into a private segment. This creates
an implicit array of the pointers, which may then be enumerated
starting right after a globally linked element trace_ops_head.
A sentinel NULL pointer trails the array. A helper macro
EXPORT_TRACE_OPS is added for creating the special pointers.
Signed-off-by: Tuukka Tikkanen <tuukka.tikkanen@linaro.org>
Reviewed-by: Koan-Sin Tan <freedom.tan@linaro.org>
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