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In verbose level 2, errors returned by libdw are reported in most cases, but not when calling dwfl_attach_state. Since elfutils v 0.160 (2014), dwfl_attach_state sets the error code to report failure cause. On failure, log the reported error. Signed-off-by: Martin Vuille <jpmv27@aim.com> Reviewed-by: Kim Phillips <kim.phillips@arm.com> Link: http://lkml.kernel.org/r/20180318175053.4222-1-jpmv27@aim.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.