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Date: Fri, 28 Aug 2015 12:54:02 +0000 From: Wang Nan <wangnan0@...wei.com> To: <acme@...hat.com> CC: <linux-kernel@...r.kernel.org>, <lizefan@...wei.com>, <pi3orama@....com>, Wang Nan <wangnan0@...wei.com> Subject: [PATCH] perf tools: Fix cross compiling error Cross compiling perf to other platform failed due to missing symbol: ... AR /pathofperf/libperf.a LD /pathofperf/tests/perf-in.o LD /pathofperf/perf-in.o LINK /pathofperf/perf /pathofperf/libperf.a(libperf-in.o): In function `intel_pt_synth_branch_sample': /usr/src/kernel/tools/perf/util/intel-pt.c:899: undefined reference to `tsc_to_perf_time' /pathofperf/libperf.a(libperf-in.o): In function `intel_pt_synth_transaction_sample': /usr/src/kernel/tools/perf/util/intel-pt.c:992: undefined reference to `tsc_to_perf_time' /pathofperf/libperf.a(libperf-in.o): In function `intel_pt_synth_instruction_sample': /usr/src/kernel/tools/perf/util/intel-pt.c:943: undefined reference to `tsc_to_perf_time' ... This is because we allow newly introduced intel-pt-decoder to be compiled to not only X86, but tsc.c which required by it is compiled for x86 only. This patch fix the compiling error by allow tsc.c to be compiled if CONFIG_AUXTRACE is set, no matter the target platform. Signed-off-by: Wang Nan <wangnan0@...wei.com> Cc: Arnaldo Carvalho de Melo <acme@...hat.com> --- tools/perf/util/Build | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/Build b/tools/perf/util/Build index fd2f084..c8d9c7e 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -74,7 +74,7 @@ libperf-y += stat-shadow.o libperf-y += record.o libperf-y += srcline.o libperf-y += data.o -libperf-$(CONFIG_X86) += tsc.o +libperf-$(CONFIG_AUXTRACE) += tsc.o libperf-y += cloexec.o libperf-y += thread-stack.o libperf-$(CONFIG_AUXTRACE) += auxtrace.o -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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