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Jiangshan Yi fc2b89707e samples/bpf: Fix compilation errors with cf-protection option [ Upstream commit `fdf1c728fa` ] Currently, compiling the bpf programs will result the compilation errors with the cf-protection option as follows in arm64 and loongarch64 machine when using gcc 12.3.1 and clang 17.0.6. This commit fixes the compilation errors by limited the cf-protection option only used in x86 platform. [root@localhost linux]# make M=samples/bpf ...... CLANG-bpf samples/bpf/xdp2skb_meta_kern.o error: option 'cf-protection=return' cannot be specified on this target error: option 'cf-protection=branch' cannot be specified on this target 2 errors generated. CLANG-bpf samples/bpf/syscall_tp_kern.o error: option 'cf-protection=return' cannot be specified on this target error: option 'cf-protection=branch' cannot be specified on this target 2 errors generated. ...... Fixes: `34f6e38f58` ("samples/bpf: fix warning with ignored-attributes") Reported-by: Jiangshan Yi <yijiangshan@kylinos.cn> Signed-off-by: Jiangshan Yi <yijiangshan@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Qiang Wang <wangqiang1@kylinos.cn> Link: https://lore.kernel.org/bpf/20240815135524.140675-1-13667453960@163.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-10-04 16:29:19 +02:00
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samples	samples/bpf: Fix compilation errors with cf-protection option	2024-10-04 16:29:19 +02:00
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tools	selftests/bpf: Fix error compiling tc_redirect.c with musl libc	2024-10-04 16:29:19 +02:00
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README

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.