5f6c3061af
Add couple of basic utility functions to post process the mmap buffer. It includes function to read the total number of samples present in the mmap buffer and function to get the address of the first sample. Add function "get_intr_regs" which will return pointer to interrupt registers present in the sample, incase sample type PERF_SAMPLE_REGS_INTR is set. Add functions "get_reg_value" which can be used to read any interrupt register value from a given sample. Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220127072012.662451-5-kjain@linux.ibm.com
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 Restructured Text 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.