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[PATCH 08/12] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on

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regs_query_register_offset() in dwarf-regs.c is required by BPF prologue.
This patch compiles it if CONFIG_BPF_PROLOGUE is on to avoid buildin
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@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
---
 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

[PATCH 00/12] perf tools: bpf: Improve BPF program ability Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:30 +0100
  [PATCH 08/12] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 07/12] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 09/12] perf tools: Add prologue for BPF programs for fetching arguments Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 06/12] bpf tools: Load a program with different instances using preprocessor Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 03/12] perf tools: Allow BPF program attach to uprobe events Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
    Re: [PATCH 03/12] perf tools: Allow BPF program attach to uprobe  events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-13 16:40 +0100
  [PATCH 11/12] perf test: Test BPF prologue Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 04/12] perf tools: Allow BPF program attach to modules Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
    Re: [PATCH 04/12] perf tools: Allow BPF program attach to modules Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-13 16:50 +0100
  [PATCH 10/12] perf tools: Generate prologue for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 05/12] perf tools: Allow BPF program config probing options Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
    Re: [PATCH 05/12] perf tools: Allow BPF program config probing  options Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-13 16:50 +0100
      Re: [PATCH 05/12] perf tools: Allow BPF program config probing options "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-16 10:20 +0100
  [PATCH 01/12] perf probe: Fix memory leaking on faiulre by clearing all probe_trace_events Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
  [PATCH 02/12] perf probe: Clear probe_trace_event when add_probe_trace_event() fails Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100
    Re: [PATCH 02/12] perf probe: Clear probe_trace_event when  add_probe_trace_event() fails Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-13 17:00 +0100
  [PATCH 12/12] perf tools: Use same BPF program if arguments are identical Wang Nan <wangnan0@huawei.com> - 2015-11-13 13:40 +0100

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