Le 24/06/2023 à 09:33, kernel test robot a écrit : > Hi Christophe, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on linus/master] > [also build test WARNING on v6.4-rc7 next-20230623] > [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/Christophe-Leroy/objtool-Make-sec-address-always-on/20230621-232305 > base: linus/master > patch link: > https://lore.kernel.org/r/e7e1de1d01194df3ff4053cb0815fc2ddba33213.1687360711.git.christophe.leroy%40csgroup.eu > patch subject: [PATCH] objtool: Make 'sec-address' always on > config: x86_64-randconfig-c002-20230622 > (https://download.01.org/0day-ci/archive/20230624/202306241520.4jigehk4-...@intel.com/config) > compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 > reproduce: > (https://download.01.org/0day-ci/archive/20230624/202306241520.4jigehk4-...@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 <l...@intel.com> > | Closes: > https://lore.kernel.org/oe-kbuild-all/202306241520.4jigehk4-...@intel.com/ > > All warnings (new ones prefixed by >>): > >>> vmlinux.o: warning: objtool: ibt_selftest+0x14 (.text+0x92b54): sibling >>> call from callable instruction with modified stack frame > vmlinux.o: warning: objtool: .altinstr_replacement+0x19a4: redundant > UACCESS disable > vmlinux.o: warning: objtool: iovec_from_user.part.0+0xb1 > (.text+0x1c47761): call to copy_iovec_from_user.part.0() with UACCESS enabled > vmlinux.o: warning: objtool: ibt_selftest+0x1e (.text+0x92b5e): return > with modified stack frame >
I can't really see any link between that warning and the changes in the patch. Whatever, this patch will be discarded as pointed out by Josh. Christophe > > objdump-func vmlinux.o ibt_selftest: > 0000 0000000000092b40 <ibt_selftest>: > 0000 92b40: f3 0f 1e fa endbr64 > 0004 92b44: e8 00 00 00 00 call 92b49 <ibt_selftest+0x9> > 92b45: R_X86_64_PLT32 __fentry__-0x4 > 0009 92b49: 55 push %rbp > 000a 92b4a: 48 89 e5 mov %rsp,%rbp > 000d 92b4d: 48 8d 05 02 00 00 00 lea 0x2(%rip),%rax # > 92b56 <ibt_selftest_ip> > 0014 92b54: ff e0 jmp *%rax > 0000 0000000000092b56 <ibt_selftest_ip>: > 0000 92b56: 90 nop > 0001 92b57: 48 85 c0 test %rax,%rax > 0004 92b5a: 5d pop %rbp > 0005 92b5b: 0f 94 c0 sete %al > 0008 92b5e: e9 00 00 00 00 jmp 92b63 > <ibt_selftest_ip+0xd> 92b5f: R_X86_64_PLT32 __x86_return_thunk-0x4 > 000d 92b63: 66 2e 0f 1f 84 00 00 00 00 00 cs nopw 0x0(%rax,%rax,1) > 0017 92b6d: 0f 1f 00 nopl (%rax) >
