From 4d0d1673416bee2099e93c6636c51754e2100024 Mon Sep 17 00:00:00 2001 From: Jianlin Lv Date: Fri, 21 Aug 2020 13:28:17 +0800 Subject: docs: Correct subject prefix and update LLVM info MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit bpf_devel_QA.rst:152 The subject prefix information is not accurate, it should be 'PATCH bpf-next v2' Also update LLVM version info and add information about ‘-DLLVM_TARGETS_TO_BUILD’ to prompt the developer to build the desired target. Signed-off-by: Jianlin Lv Signed-off-by: Alexei Starovoitov Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20200821052817.46887-1-Jianlin.Lv@arm.com --- Documentation/bpf/bpf_devel_QA.rst | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) (limited to 'Documentation/bpf') diff --git a/Documentation/bpf/bpf_devel_QA.rst b/Documentation/bpf/bpf_devel_QA.rst index a26aa1b9b259..75a0dca5f295 100644 --- a/Documentation/bpf/bpf_devel_QA.rst +++ b/Documentation/bpf/bpf_devel_QA.rst @@ -149,7 +149,7 @@ In case the patch or patch series has to be reworked and sent out again in a second or later revision, it is also required to add a version number (``v2``, ``v3``, ...) into the subject prefix:: - git format-patch --subject-prefix='PATCH net-next v2' start..finish + git format-patch --subject-prefix='PATCH bpf-next v2' start..finish When changes have been requested to the patch series, always send the whole patch series again with the feedback incorporated (never send @@ -479,17 +479,18 @@ LLVM's static compiler lists the supported targets through $ llc --version LLVM (http://llvm.org/): - LLVM version 6.0.0svn + LLVM version 10.0.0 Optimized build. Default target: x86_64-unknown-linux-gnu Host CPU: skylake Registered Targets: - bpf - BPF (host endian) - bpfeb - BPF (big endian) - bpfel - BPF (little endian) - x86 - 32-bit X86: Pentium-Pro and above - x86-64 - 64-bit X86: EM64T and AMD64 + aarch64 - AArch64 (little endian) + bpf - BPF (host endian) + bpfeb - BPF (big endian) + bpfel - BPF (little endian) + x86 - 32-bit X86: Pentium-Pro and above + x86-64 - 64-bit X86: EM64T and AMD64 For developers in order to utilize the latest features added to LLVM's BPF back end, it is advisable to run the latest LLVM releases. Support @@ -517,6 +518,10 @@ from the git repositories:: The built binaries can then be found in the build/bin/ directory, where you can point the PATH variable to. +Set ``-DLLVM_TARGETS_TO_BUILD`` equal to the target you wish to build, you +will find a full list of targets within the llvm-project/llvm/lib/Target +directory. + Q: Reporting LLVM BPF issues ---------------------------- Q: Should I notify BPF kernel maintainers about issues in LLVM's BPF code -- cgit v1.2.3