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Groups > linux.kernel > #1242069

[PATCH 15/22] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on

From Wang Nan <wangnan0@huawei.com>
Newsgroups linux.kernel
Subject [PATCH 15/22] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on
Date 2015-10-08 10:40 +0200
Message-ID <qheU4-6Ba-49@gated-at.bofh.it> (permalink)
References <qheU1-6Ba-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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regs_query_register_offset() in dwarf-regs.c is required by BPF prologue.
Make it be compiled if CONFIG_BPF_PROLOGUE is on to avoid building failure
when CONFIG_BPF_PROLOGUE is on but CONFIG_DWARF is not set.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/ebpf-6yw9eg0ej3l4jnqhinngkw86@git.kernel.org
---
 tools/perf/arch/x86/util/Build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/arch/x86/util/Build b/tools/perf/arch/x86/util/Build
index ff63649..4659703 100644
--- a/tools/perf/arch/x86/util/Build
+++ b/tools/perf/arch/x86/util/Build
@@ -5,6 +5,7 @@ libperf-y += kvm-stat.o
 libperf-y += perf_regs.o
 
 libperf-$(CONFIG_DWARF) += dwarf-regs.o
+libperf-$(CONFIG_BPF_PROLOGUE) += dwarf-regs.o
 
 libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
 libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
-- 
1.8.3.4

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Thread

[GIT PULL 00/22] perf tools: filtering events using eBPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 22/22] perf test: Test BPF prologue Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 14/22] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 19/22] perf record: Support custom vmlinux path Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 13/22] bpf tools: Load a program with different instances using preprocessor Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 05/22] perf record: Load eBPF object into kernel Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 15/22] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 21/22] perf test: Enforce LLVM test, add kbuild test Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 02/22] perf ebpf: Add the libbpf glue Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 04/22] perf record, bpf: Create probe points for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 18/22] perf tools: Use same BPF program if arguments are identical Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 10/22] perf test: Enforce LLVM test for BPF test Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 11/22] perf test: Add 'perf test BPF' Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 09/22] perf tools: Compile scriptlets to BPF objects when passing '.c' to --event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 08/22] perf record: Add clang options for compiling BPF scripts Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 17/22] perf tools: Generate prologue for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 03/22] perf tools: Enable passing bpf object file to --event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 06/22] perf tools: Collect perf_evsel in BPF object files Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 07/22] perf tools: Attach eBPF program to perf event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  Re: [GIT PULL 00/22] perf tools: filtering events using eBPF programs Arnaldo Carvalho de Melo <acme@redhat.com> - 2015-10-08 15:50 +0200

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