Re: [PATCH v8 1/3] perf report: Support LLVM for addr2line()

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence bisect report"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20240602204208.735793-1-sesse@google.com>
References: <20240602204208.735793-1-sesse@google.com>
TO: "Steinar H. Gunderson" <sesse@google.com>
TO: acme@kernel.org
CC: linux-perf-users@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: irogers@google.com
CC: "Steinar H. Gunderson" <sesse@google.com>
CC: Arnaldo Carvalho de Melo <acme@redhat.com>

Hi Steinar,

kernel test robot noticed the following build errors:

[auto build test ERROR on perf-tools-next/perf-tools-next]
[also build test ERROR on tip/perf/core perf-tools/perf-tools linus/master v6.10-rc2 next-20240606]
[cannot apply to acme/perf/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Steinar-H-Gunderson/perf-annotate-split-out-read_symbol/20240603-044420
base:   https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next
patch link:    https://lore.kernel.org/r/20240602204208.735793-1-sesse%40google.com
patch subject: [PATCH v8 1/3] perf report: Support LLVM for addr2line()
:::::: branch date: 4 days ago
:::::: commit date: 4 days ago
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240606/202406061836.rCHPTTLb-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202406061836.rCHPTTLb-lkp@intel.com/

All errors (new ones prefixed by >>):

   Makefile.config:663: No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR
     PERF_VERSION = 6.10.rc1.gd3c83c542797
>> util/srcline.c:183:32: error: omitting the parameter name in a function definition is a C23 extension [-Werror,-Wc23-extensions]
     183 | void dso__free_a2l(struct dso *)
         |                                ^
   1 error generated.
   make[7]: *** [tools/build/Makefile.build:105: tools/perf/util/srcline.o] Error 1
   make[7]: *** Waiting for unfinished jobs....
   make[6]: *** [tools/build/Makefile.build:158: util] Error 2
   make[5]: *** [Makefile.perf:727: tools/perf/perf-in.o] Error 2
   make[5]: *** Waiting for unfinished jobs....
   make[4]: *** [Makefile.perf:264: sub-make] Error 2
   make[3]: *** [Makefile:70: all] Error 2


vim +183 tools/perf/util/srcline.c

d3c83c542797774 Steinar H. Gunderson 2024-06-02  182  
d3c83c542797774 Steinar H. Gunderson 2024-06-02 @183  void dso__free_a2l(struct dso *)
d3c83c542797774 Steinar H. Gunderson 2024-06-02  184  {
d3c83c542797774 Steinar H. Gunderson 2024-06-02  185  	/* Nothing to free. */
d3c83c542797774 Steinar H. Gunderson 2024-06-02  186  }
d3c83c542797774 Steinar H. Gunderson 2024-06-02  187  

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