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perf bpf: 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
build failure when CONFIG_BPF_PROLOGUE is on but CONFIG_DWARF is not
set.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: He Kuang <hekuang@huawei.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1447675815-166222-10-git-send-email-wangnan0@huawei.com
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan 2015-11-16 12:10:11 +00:00 committed by Arnaldo Carvalho de Melo
parent 1c0ed63239
commit 30433a3a52
1 changed files with 1 additions and 0 deletions
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tools/perf/arch/x86/util/Build
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@ -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