Tiezhu Yang 628add78b0 bpf, docs: Update build procedure for manually compiling LLVM and Clang ... The current LLVM and Clang build procedure in samples/bpf/README.rst is out of date. See below that the links are not accessible any more. $ git clone http://llvm.org/git/llvm.git Cloning into 'llvm'... fatal: unable to access 'http://llvm.org/git/llvm.git/': Maximum (20) redirects followed $ git clone --depth 1 http://llvm.org/git/clang.git Cloning into 'clang'... fatal: unable to access 'http://llvm.org/git/clang.git/': Maximum (20) redirects followed The LLVM community has adopted new ways to build the compiler. There are different ways to build LLVM and Clang, the Clang Getting Started page [1] has one way. As Yonghong said, it is better to copy the build procedure in Documentation/bpf/bpf_devel_QA.rst to keep consistent. I verified the procedure and it is proved to be feasible, so we should update README.rst to reflect the reality. At the same time, update the related comment in Makefile. Additionally, as Fangrui said, the dir llvm-project/llvm/build/install is not used, BUILD_SHARED_LIBS=OFF is the default option [2], so also change Documentation/bpf/bpf_devel_QA.rst together. At last, we recommend that developers who want the fastest incremental builds use the Ninja build system [1], you can find it in your system's package manager, usually the package is ninja or ninja-build [3], so add ninja to build dependencies suggested by Nathan. [1] https://clang.llvm.org/get_started.html [2] https://www.llvm.org/docs/CMake.html [3] https://github.com/ninja-build/ninja/wiki/Pre-built-Ninja-packages Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Yonghong Song <yhs@fb.com> Cc: Fangrui Song <maskray@google.com> Link: https://lore.kernel.org/bpf/1611279584-26047-1-git-send-email-yangtiezhu@loongson.cn		2021-01-23 00:09:03 +01:00
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bpf_design_QA.rst	trace: bpf: Allow bpf to attach to bare tracepoints	2021-01-20 14:13:59 -08:00
bpf_devel_QA.rst	bpf, docs: Update build procedure for manually compiling LLVM and Clang	2021-01-23 00:09:03 +01:00
bpf_lsm.rst	bpf: lsm: Add Documentation	2020-03-30 01:35:12 +02:00
btf.rst	bpf: Update .BTF_ids section in btf.rst with sets info	2020-08-25 15:41:15 -07:00
drgn.rst	bpf: Document bpf_inspect drgn tool	2020-03-26 00:08:36 +01:00
index.rst	bpf: sk_lookup: Add user documentation	2020-08-24 14:46:50 -07:00
map_cgroup_storage.rst	Documentation/bpf: Document CGROUP_STORAGE map type	2020-07-25 20:16:36 -07:00
prog_cgroup_sockopt.rst	bpf: Document optval > PAGE_SIZE behavior for sockopt hooks	2020-06-17 10:54:05 -07:00
prog_cgroup_sysctl.rst	bpf: Document BPF_PROG_TYPE_CGROUP_SYSCTL	2019-04-18 16:05:36 -07:00
prog_flow_dissector.rst	bpf/flow_dissector: add mode to enforce global BPF flow dissector	2019-10-07 20:16:33 -07:00
prog_sk_lookup.rst	bpf: sk_lookup: Add user documentation	2020-08-24 14:46:50 -07:00
ringbuf.rst	docs/bpf: Remove source code links	2020-09-14 18:46:54 -07:00
s390.rst	bpf: Add s390 testing documentation	2019-10-30 16:25:31 +01:00