[mhiramat:kprobes/kretprobe-stackfix-v3 5/11] arch/x86/kernel/kprobes/core.o: warning: objtool: kretprobe_trampoline()+0x25: call without frame pointer save/setup

[mhiramat:kprobes/kretprobe-stackfix-v3 5/11] arch/x86/kernel/kprobes/core.o: warning: objtool: kretprobe_trampoline()+0x25: call without frame pointer save/setup

[kernel test robot]

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TO: Josh Poimboeuf <jpoimboe@redhat.com>
CC: Masami Hiramatsu <mhiramat@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/kretprobe-stackfix-v3
head:   89826b1f814b340c1b78d896da569ff693ab2c51
commit: 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b [5/11] x86/kprobes: Add UNWIND_HINT_FUNC on kretprobe_trampoline code
config: x86_64-randconfig-a002-20210318 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project fcc1ce00931751ac02498986feb37744e9ace8de)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/commit/?id=240dbe52255834ff0de40f8b4ad4ff8f5d727d0b
        git remote add mhiramat https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git
        git fetch --no-tags mhiramat kprobes/kretprobe-stackfix-v3
        git checkout 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/kprobes/core.o: warning: objtool: kretprobe_trampoline()+0x25: call without frame pointer save/setup
   arch/x86/kernel/kprobes/core.o: warning: objtool: asan.module_ctor()+0xc: call without frame pointer save/setup
   arch/x86/kernel/kprobes/core.o: warning: objtool: asan.module_dtor()+0xc: call without frame pointer save/setup

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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[mhiramat:kprobes/kretprobe-stackfix-v3 5/11] arch/x86/kernel/kprobes/core.o: warning: objtool: kretprobe_trampoline()+0x25: call without frame pointer save/setup

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/kretprobe-stackfix-v3
head:   89826b1f814b340c1b78d896da569ff693ab2c51
commit: 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b [5/11] x86/kprobes: Add UNWIND_HINT_FUNC on kretprobe_trampoline code
config: x86_64-randconfig-a012-20210124 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/commit/?id=240dbe52255834ff0de40f8b4ad4ff8f5d727d0b
        git remote add mhiramat https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git
        git fetch --no-tags mhiramat kprobes/kretprobe-stackfix-v3
        git checkout 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/kprobes/core.o: warning: objtool: kretprobe_trampoline()+0x25: call without frame pointer save/setup

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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