linux-kernel - [jolsa-perf:kprobe_multi_kmod 3/9] kernel/trace/ftrace.c:8305: undefined reference to `module_kallsyms_on_each

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Message-ID: <202210050625.v6gum8BD-lkp@intel.com>
Date:   Wed, 5 Oct 2022 06:57:55 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jolsa-perf:kprobe_multi_kmod 3/9] kernel/trace/ftrace.c:8305:
 undefined reference to `module_kallsyms_on_each_symbol'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git kprobe_multi_kmod
head:   13e547c472fd67b9ac56d181c40ac326b934b4da
commit: e737e20e8fa23ef85697dee5db638280689d5c3d [3/9] ftrace: Add support to resolve module symbols in ftrace_lookup_symbols
config: csky-randconfig-r016-20221002
compiler: csky-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=e737e20e8fa23ef85697dee5db638280689d5c3d
        git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
        git fetch --no-tags jolsa-perf kprobe_multi_kmod
        git checkout e737e20e8fa23ef85697dee5db638280689d5c3d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   csky-linux-ld: kernel/trace/ftrace.o: in function `ftrace_lookup_symbols':
>> kernel/trace/ftrace.c:8305: undefined reference to `module_kallsyms_on_each_symbol'
>> csky-linux-ld: kernel/trace/ftrace.c:8306: undefined reference to `module_kallsyms_on_each_symbol'


vim +8305 kernel/trace/ftrace.c

  8275	
  8276	/**
  8277	 * ftrace_lookup_symbols - Lookup addresses for array of symbols
  8278	 *
  8279	 * @sorted_syms: array of symbols pointers symbols to resolve,
  8280	 * must be alphabetically sorted
  8281	 * @cnt: number of symbols/addresses in @syms/@...rs arrays
  8282	 * @addrs: array for storing resulting addresses
  8283	 *
  8284	 * This function looks up addresses for array of symbols provided in
  8285	 * @syms array (must be alphabetically sorted) and stores them in
  8286	 * @addrs array, which needs to be big enough to store at least @cnt
  8287	 * addresses.
  8288	 *
  8289	 * This function returns 0 if all provided symbols are found,
  8290	 * -ESRCH otherwise.
  8291	 */
  8292	int ftrace_lookup_symbols(const char **sorted_syms, size_t cnt, unsigned long *addrs)
  8293	{
  8294		struct kallsyms_data args;
  8295		int err;
  8296	
  8297		memset(addrs, 0, sizeof(*addrs) * cnt);
  8298		args.addrs = addrs;
  8299		args.syms = sorted_syms;
  8300		args.cnt = cnt;
  8301		args.found = 0;
  8302		err = kallsyms_on_each_symbol(kallsyms_callback, &args);
  8303		if (err < 0)
  8304			return err;
> 8305		err = module_kallsyms_on_each_symbol(kallsyms_callback, &args);
> 8306		if (err < 0)
  8307			return err;
  8308		return args.found == args.cnt ? 0 : -ESRCH;
  8309	}
  8310	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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