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02648783c2
The pr_debug_scope() is to print more information about the scope DIE during the instruction tracking so that it can help finding relevant debug info and the source code like inlined functions more easily. $ perf --debug type-profile annotate --data-type ... ----------------------------------------------------------- find data type for 0(reg0, reg12) at set_task_cpu+0xdd CU for kernel/sched/core.c (die:0x1268dae) frame base: cfa=1 fbreg=7 scope: [3/3] (die:12b6d28) [inlined] set_task_rq <<<--- (here) bb: [9f - dd] var [9f] reg3 type='struct task_struct*' size=0x8 (die:0x126aff0) var [9f] reg6 type='unsigned int' size=0x4 (die:0x1268e0d) Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240909214251.3033827-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.