linux-kernel - [tip:perf/core] perf bpf: Compile dwarf-regs.c if CONFIG_BPF

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Date:	Mon, 23 Nov 2015 08:05:52 -0800
From:	tip-bot for Wang Nan <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hekuang@...wei.com, masami.hiramatsu.pt@...achi.com,
	tglx@...utronix.de, mingo@...nel.org, acme@...hat.com,
	hpa@...or.com, ast@...nel.org, linux-kernel@...r.kernel.org,
	lizefan@...wei.com, wangnan0@...wei.com
Subject: [tip:perf/core] perf bpf:
  Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on

Commit-ID:  30433a3a52b951faab95944e0f8b9d33a1e322ce
Gitweb:     http://git.kernel.org/tip/30433a3a52b951faab95944e0f8b9d33a1e322ce
Author:     Wang Nan <wangnan0@...wei.com>
AuthorDate: Mon, 16 Nov 2015 12:10:11 +0000
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 18 Nov 2015 17:51:03 -0300

perf bpf: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on

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@...wei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: He Kuang <hekuang@...wei.com>
Cc: Zefan Li <lizefan@...wei.com>
Cc: pi3orama@....com
Link: http://lkml.kernel.org/r/1447675815-166222-10-git-send-email-wangnan0@huawei.com
Signed-off-by: Wang Nan <wangnan0@...wei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.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
--
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