[RFC PATCH v10 00/50] perf tools: filtering events using eBPF programs

From	Wang Nan <wangnan0@huawei.com>
Newsgroups	linux.kernel
Subject	[RFC PATCH v10 00/50] perf tools: filtering events using eBPF programs
Date	2015-07-01 04:20 +0200
Message-ID	<pHfMZ-3Uy-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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This is the 10th version which tries to introduce eBPF programs to perf.

Compare with v9 there are only some small changes:

 1. Squash patch 2/50 and 3/50 in v9 together, never check host
    include/linux/bpf.h, so bpf feature check will always green.

 2. Fix compiling error when CONFIG_BPF_SYSCALL is set but
    CONFIG_BPF_EVENT is unset. See patch 1/50.

 3. In add_perf_probe_events(), always init kernel symbol maps.

He Kuang (3):
  perf tools: Move linux/filter.h to tools/include
  perf tools: Introduce arch_get_reg_info() for x86
  perf record: Support custom vmlinux path

Wang Nan (47):
  bpf: Use correct #ifdef controller for trace_call_bpf()
  tracing, perf: Implement BPF programs attached to uprobes
  bpf tools: Introduce 'bpf' library and add bpf feature check
  bpf tools: Allow caller to set printing function
  bpf tools: Open eBPF object file and do basic validation
  bpf tools: Read eBPF object from buffer
  bpf tools: Check endianness and make libbpf fail early
  bpf tools: Iterate over ELF sections to collect information
  bpf tools: Collect version and license from ELF sections
  bpf tools: Collect map definitions from 'maps' section
  bpf tools: Collect symbol table from SHT_SYMTAB section
  bpf tools: Collect eBPF programs from their own sections
  bpf tools: Collect relocation sections from SHT_REL sections
  bpf tools: Record map accessing instructions for each program
  bpf tools: Add bpf.c/h for common bpf operations
  bpf tools: Create eBPF maps defined in an object file
  bpf tools: Relocate eBPF programs
  bpf tools: Introduce bpf_load_program() to bpf.c
  bpf tools: Load eBPF programs in object files into kernel
  bpf tools: Introduce accessors for struct bpf_program
  bpf tools: Introduce accessors for struct bpf_object
  bpf tools: Link all bpf objects onto a list
  perf tools: Make perf depend on libbpf
  perf tools: Introduce llvm config options
  perf tools: Call clang to compile C source to object code
  perf tests: Add LLVM test for eBPF on-the-fly compiling
  perf tools: Auto detecting kernel build directory
  perf tools: Auto detecting kernel include options
  perf record: Enable passing bpf object file to --event
  perf record: Compile scriptlets if pass '.c' to --event
  perf tools: Parse probe points of eBPF programs during preparation
  perf probe: Attach trace_probe_event with perf_probe_event
  perf record: Probe at kprobe points
  perf record: Load all eBPF object into kernel
  perf tools: Add bpf_fd field to evsel and config it
  perf tools: Attach eBPF program to perf event
  perf tools: Suppress probing messages when probing by BPF loading
  perf record: Add clang options for compiling BPF scripts
  bpf tools: Load a program with different instance using preprocessor
  perf tools: Fix probe-event.h include
  perf probe: Reset tev->args and tev->nargs when failure
  perf tools: Add BPF_PROLOGUE config options for further patches
  perf tools: Add prologue for BPF programs for fetching arguments
  perf tools: Generate prologue for BPF programs
  perf tools: Use same BPF program if arguments are identical
  perf probe: Init symbol as kprobe if any event is kprobe
  perf tools: Support attach BPF program on uprobe events

 include/linux/ftrace_event.h          |    7 +-
 kernel/events/core.c                  |    4 +-
 kernel/trace/Kconfig                  |    2 +-
 kernel/trace/trace_uprobe.c           |    5 +
 tools/build/Makefile.feature          |    6 +-
 tools/build/feature/Makefile          |    6 +-
 tools/build/feature/test-bpf.c        |   18 +
 tools/include/linux/filter.h          |  237 +++++++
 tools/lib/bpf/.gitignore              |    2 +
 tools/lib/bpf/Build                   |    1 +
 tools/lib/bpf/Makefile                |  195 ++++++
 tools/lib/bpf/bpf.c                   |   85 +++
 tools/lib/bpf/bpf.h                   |   23 +
 tools/lib/bpf/libbpf.c                | 1174 +++++++++++++++++++++++++++++++++
 tools/lib/bpf/libbpf.h                |  107 +++
 tools/perf/MANIFEST                   |    4 +
 tools/perf/Makefile.perf              |   19 +-
 tools/perf/arch/x86/Makefile          |    1 +
 tools/perf/arch/x86/util/Build        |    2 +
 tools/perf/arch/x86/util/dwarf-regs.c |  104 ++-
 tools/perf/builtin-probe.c            |    4 +-
 tools/perf/builtin-record.c           |   47 +-
 tools/perf/config/Makefile            |   31 +-
 tools/perf/tests/Build                |    1 +
 tools/perf/tests/builtin-test.c       |    4 +
 tools/perf/tests/llvm.c               |   85 +++
 tools/perf/tests/make                 |    4 +-
 tools/perf/tests/tests.h              |    1 +
 tools/perf/util/Build                 |    3 +
 tools/perf/util/bpf-loader.c          |  631 ++++++++++++++++++
 tools/perf/util/bpf-loader.h          |   46 ++
 tools/perf/util/bpf-prologue.c        |  442 +++++++++++++
 tools/perf/util/bpf-prologue.h        |   34 +
 tools/perf/util/config.c              |    4 +
 tools/perf/util/debug.c               |    5 +
 tools/perf/util/debug.h               |    1 +
 tools/perf/util/evlist.c              |   41 ++
 tools/perf/util/evlist.h              |    1 +
 tools/perf/util/evsel.c               |   17 +
 tools/perf/util/evsel.h               |    1 +
 tools/perf/util/include/dwarf-regs.h  |    7 +
 tools/perf/util/llvm-utils.c          |  370 +++++++++++
 tools/perf/util/llvm-utils.h          |   39 ++
 tools/perf/util/parse-events.c        |   16 +
 tools/perf/util/parse-events.h        |    2 +
 tools/perf/util/parse-events.l        |    6 +
 tools/perf/util/parse-events.y        |   29 +-
 tools/perf/util/probe-event.c         |   84 +--
 tools/perf/util/probe-event.h         |    8 +-
 tools/perf/util/probe-finder.c        |    4 +
 50 files changed, 3889 insertions(+), 81 deletions(-)
 create mode 100644 tools/build/feature/test-bpf.c
 create mode 100644 tools/include/linux/filter.h
 create mode 100644 tools/lib/bpf/.gitignore
 create mode 100644 tools/lib/bpf/Build
 create mode 100644 tools/lib/bpf/Makefile
 create mode 100644 tools/lib/bpf/bpf.c
 create mode 100644 tools/lib/bpf/bpf.h
 create mode 100644 tools/lib/bpf/libbpf.c
 create mode 100644 tools/lib/bpf/libbpf.h
 create mode 100644 tools/perf/tests/llvm.c
 create mode 100644 tools/perf/util/bpf-loader.c
 create mode 100644 tools/perf/util/bpf-loader.h
 create mode 100644 tools/perf/util/bpf-prologue.c
 create mode 100644 tools/perf/util/bpf-prologue.h
 create mode 100644 tools/perf/util/llvm-utils.c
 create mode 100644 tools/perf/util/llvm-utils.h

-- 
1.8.3.4

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[RFC PATCH v10 00/50] perf tools: filtering events using eBPF programs Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 18/50] bpf tools: Introduce bpf_load_program() to bpf.c Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 07/50] bpf tools: Check endianness and make libbpf fail early Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 25/50] perf tools: Call clang to compile C source to object code Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 02/50] tracing, perf: Implement BPF programs attached to uprobes Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 05/50] bpf tools: Open eBPF object file and do basic validation Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 22/50] bpf tools: Link all bpf objects onto a list Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 27/50] perf tools: Auto detecting kernel build directory Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 06/50] bpf tools: Read eBPF object from buffer Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 13/50] bpf tools: Collect relocation sections from SHT_REL sections Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 01/50] bpf: Use correct #ifdef controller for trace_call_bpf() Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 16/50] bpf tools: Create eBPF maps defined in an object file Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  [RFC PATCH v10 17/50] bpf tools: Relocate eBPF programs Wang Nan <wangnan0@huawei.com> - 2015-07-01 04:20 +0200
  Re: [RFC PATCH v10 23/50] perf tools: Make perf depend on libbpf Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-08 15:10 +0200
  Re: [RFC PATCH v10 23/50] perf tools: Make perf depend on libbpf Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-08 15:10 +0200

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