Re: [PATCH] perf tools: fix build breakage on arm and arm64 targets

From: Jean Pihet
Date: Mon Sep 29 2014 - 03:00:06 EST

Hi Will,

On 26 September 2014 19:19, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> On 26/09/14 18:01, Will Deacon wrote:
>> Attempting to build the perf tool on arm or arm64 targets results in the
>> following failure:
>> arch/arm/util/unwind-libunwind.c: In function âlibunwind__arch_reg_idâ:
>> arch/arm/util/unwind-libunwind.c:43:3: error: implicit declaration of
>> function âpr_errâ [-Werror=implicit-function-declaration]
>> pr_err("unwind: invalid reg id %d\n", regnum);
>> ^
>> 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 includes, and fixes the build again.

The fix for ARM is already in the tip tree at


> For ARM64, we also need the patch[1] "perf tools: Fix arm64 build error"
> which is already queued in linux-next.
> Regards,
> Sudeep
> [1]
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