netdev - [PATCH RFC v4 net-next 22/26] bpf: llvm backend

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Message-Id: <1407916658-8731-23-git-send-email-ast@plumgrid.com>
Date:	Wed, 13 Aug 2014 00:57:33 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Lutomirski <luto@...capital.net>,
	Steven Rostedt <rostedt@...dmis.org>,
	Daniel Borkmann <dborkman@...hat.com>,
	Chema Gonzalez <chema@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>, linux-api@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH RFC v4 net-next 22/26] bpf: llvm backend

llvm backend that generated eBPF and emits either
binary ELF or human readable eBPF assembler

Signed-off-by: Alexei Starovoitov <ast@...mgrid.com>
---

the body of the patch is removed to prevent spam.
I doubt too many falks are interested in reading llvm diffs on lkml.
The backend is available in the tree:
https://git.kernel.org/cgit/linux/kernel/git/ast/bpf.git/commit/?id=4afc9f0b5890c0020a7d70c42bd4f0fa55d33cb0

 tools/bpf/llvm/.gitignore                          |   54 ++
 tools/bpf/llvm/LICENSE.TXT                         |   70 ++
 tools/bpf/llvm/Makefile.rules                      |  641 ++++++++++++++++++
 tools/bpf/llvm/README.txt                          |   23 +
 tools/bpf/llvm/bld/Makefile                        |   27 +
 tools/bpf/llvm/bld/Makefile.common                 |   14 +
 tools/bpf/llvm/bld/Makefile.config                 |  124 ++++
 .../llvm/bld/include/llvm/Config/AsmParsers.def    |    8 +
 .../llvm/bld/include/llvm/Config/AsmPrinters.def   |    9 +
 .../llvm/bld/include/llvm/Config/Disassemblers.def |    8 +
 tools/bpf/llvm/bld/include/llvm/Config/Targets.def |    9 +
 .../bpf/llvm/bld/include/llvm/Support/DataTypes.h  |   96 +++
 tools/bpf/llvm/bld/lib/Makefile                    |   11 +
 .../llvm/bld/lib/Target/BPF/InstPrinter/Makefile   |   10 +
 .../llvm/bld/lib/Target/BPF/MCTargetDesc/Makefile  |   11 +
 tools/bpf/llvm/bld/lib/Target/BPF/Makefile         |   17 +
 .../llvm/bld/lib/Target/BPF/TargetInfo/Makefile    |   10 +
 tools/bpf/llvm/bld/lib/Target/Makefile             |   11 +
 tools/bpf/llvm/bld/tools/Makefile                  |   12 +
 tools/bpf/llvm/bld/tools/llc/Makefile              |   15 +
 tools/bpf/llvm/lib/Target/BPF/BPF.h                |   28 +
 tools/bpf/llvm/lib/Target/BPF/BPF.td               |   29 +
 tools/bpf/llvm/lib/Target/BPF/BPFAsmPrinter.cpp    |  100 +++
 tools/bpf/llvm/lib/Target/BPF/BPFCallingConv.td    |   24 +
 tools/bpf/llvm/lib/Target/BPF/BPFFrameLowering.cpp |   36 ++
 tools/bpf/llvm/lib/Target/BPF/BPFFrameLowering.h   |   35 +
 tools/bpf/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp  |  182 ++++++
 tools/bpf/llvm/lib/Target/BPF/BPFISelLowering.cpp  |  683 ++++++++++++++++++++
 tools/bpf/llvm/lib/Target/BPF/BPFISelLowering.h    |  105 +++
 tools/bpf/llvm/lib/Target/BPF/BPFInstrFormats.td   |   29 +
 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.cpp     |  162 +++++
 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.h       |   53 ++
 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.td      |  498 ++++++++++++++
 tools/bpf/llvm/lib/Target/BPF/BPFMCInstLower.cpp   |   77 +++
 tools/bpf/llvm/lib/Target/BPF/BPFMCInstLower.h     |   40 ++
 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.cpp  |  122 ++++
 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.h    |   65 ++
 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.td   |   39 ++
 tools/bpf/llvm/lib/Target/BPF/BPFSubtarget.cpp     |   23 +
 tools/bpf/llvm/lib/Target/BPF/BPFSubtarget.h       |   33 +
 tools/bpf/llvm/lib/Target/BPF/BPFTargetMachine.cpp |   66 ++
 tools/bpf/llvm/lib/Target/BPF/BPFTargetMachine.h   |   69 ++
 .../lib/Target/BPF/InstPrinter/BPFInstPrinter.cpp  |   81 +++
 .../lib/Target/BPF/InstPrinter/BPFInstPrinter.h    |   34 +
 .../lib/Target/BPF/MCTargetDesc/BPFAsmBackend.cpp  |   89 +++
 .../llvm/lib/Target/BPF/MCTargetDesc/BPFBaseInfo.h |   33 +
 .../Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp |   56 ++
 .../lib/Target/BPF/MCTargetDesc/BPFMCAsmInfo.h     |   34 +
 .../Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp   |  167 +++++
 .../Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp    |  115 ++++
 .../lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.h  |   56 ++
 .../lib/Target/BPF/TargetInfo/BPFTargetInfo.cpp    |   13 +
 tools/bpf/llvm/tools/llc/llc.cpp                   |  381 +++++++++++
 53 files changed, 4737 insertions(+)
 create mode 100644 tools/bpf/llvm/.gitignore
 create mode 100644 tools/bpf/llvm/LICENSE.TXT
 create mode 100644 tools/bpf/llvm/Makefile.rules
 create mode 100644 tools/bpf/llvm/README.txt
 create mode 100644 tools/bpf/llvm/bld/Makefile
 create mode 100644 tools/bpf/llvm/bld/Makefile.common
 create mode 100644 tools/bpf/llvm/bld/Makefile.config
 create mode 100644 tools/bpf/llvm/bld/include/llvm/Config/AsmParsers.def
 create mode 100644 tools/bpf/llvm/bld/include/llvm/Config/AsmPrinters.def
 create mode 100644 tools/bpf/llvm/bld/include/llvm/Config/Disassemblers.def
 create mode 100644 tools/bpf/llvm/bld/include/llvm/Config/Targets.def
 create mode 100644 tools/bpf/llvm/bld/include/llvm/Support/DataTypes.h
 create mode 100644 tools/bpf/llvm/bld/lib/Makefile
 create mode 100644 tools/bpf/llvm/bld/lib/Target/BPF/InstPrinter/Makefile
 create mode 100644 tools/bpf/llvm/bld/lib/Target/BPF/MCTargetDesc/Makefile
 create mode 100644 tools/bpf/llvm/bld/lib/Target/BPF/Makefile
 create mode 100644 tools/bpf/llvm/bld/lib/Target/BPF/TargetInfo/Makefile
 create mode 100644 tools/bpf/llvm/bld/lib/Target/Makefile
 create mode 100644 tools/bpf/llvm/bld/tools/Makefile
 create mode 100644 tools/bpf/llvm/bld/tools/llc/Makefile
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPF.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPF.td
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFAsmPrinter.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFCallingConv.td
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFFrameLowering.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFFrameLowering.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFISelLowering.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFISelLowering.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFInstrFormats.td
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFInstrInfo.td
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFMCInstLower.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFMCInstLower.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFRegisterInfo.td
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFSubtarget.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFSubtarget.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFTargetMachine.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/BPFTargetMachine.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/InstPrinter/BPFInstPrinter.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/InstPrinter/BPFInstPrinter.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFAsmBackend.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFBaseInfo.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFMCAsmInfo.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.h
 create mode 100644 tools/bpf/llvm/lib/Target/BPF/TargetInfo/BPFTargetInfo.cpp
 create mode 100644 tools/bpf/llvm/tools/llc/llc.cpp
-- 
1.7.9.5

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