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    Subject[PATCH 7/8] perf tools: Fix build breakage on arm64 targets
    Date
    From: Will Deacon <will.deacon@arm.com>

    Attempting to build the perf tool for an arm64 target results in the
    following failure:

    arch/arm64/util/unwind-libunwind.c: In function 'libunwind__arch_reg_id':
    arch/arm64/util/unwind-libunwind.c:77:3: error: implicit declaration of function 'pr_err'
    pr_err("unwind: invalid reg id %d\n", regnum);
    ^
    arch/arm64/util/unwind-libunwind.c:77:3: error: nested extern declaration of 'pr_err'

    This is due to commit 84f5d36f4866 ("perf tools: Move pr_* debug macros
    into debug object") moving the pr_* macros into a new header file, but
    failing to update architectures other than x86.

    This patch adds the missing include, and fixes the build again.

    Signed-off-by: Will Deacon <will.deacon@arm.com>
    Cc: Jean Pihet <jean.pihet@linaro.org>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: linux-arm-kernel@lists.infradead.org
    Link: http://lkml.kernel.org/r/1412076432-22045-1-git-send-email-will.deacon@arm.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/arch/arm64/util/unwind-libunwind.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/tools/perf/arch/arm64/util/unwind-libunwind.c b/tools/perf/arch/arm64/util/unwind-libunwind.c
    index 436ee43859dc..a87afa91a99e 100644
    --- a/tools/perf/arch/arm64/util/unwind-libunwind.c
    +++ b/tools/perf/arch/arm64/util/unwind-libunwind.c
    @@ -3,6 +3,7 @@
    #include <libunwind.h>
    #include "perf_regs.h"
    #include "../../util/unwind.h"
    +#include "../../util/debug.h"

    int libunwind__arch_reg_id(int regnum)
    {
    --
    1.9.3


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