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The goal is to allow users to override linking of libraries that were automatically added to PERFLIBS. EXCLUDE_EXTLIBS contains linker flags to be removed from LIBS while EXTRA_PERFLIBS contains linker flags to be added. My use case is to force certain library to be build statically, e.g. for libelf: EXCLUDE_EXTLIBS=-lelf EXTRA_PERFLIBS=path/libelf.a Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Kees Kook <keescook@chromium.org> Cc: Paul Turner <pjt@google.com> Cc: Stephane Eranian <eranian@google.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170719011839.99399-3-davidcc@google.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.