Hi Florian, kernel test robot noticed the following build errors: [auto build test ERROR on tip/master] [also build test ERROR on tip/x86/core linus/master v6.11-rc3 next-20240815] [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/Florian-Rommel/x86-kgdb-trampolines-for-shadowed-instructions/20240814-230936 base: tip/master patch link: https://lore.kernel.org/r/20240814085141.171564-1-mail%40florommel.de patch subject: [PATCH WIP] x86/kgdb: trampolines for shadowed instructions config: x86_64-buildonly-randconfig-004-20240815 (https://download.01.org/0day-ci/archive/20240816/202408160303.FvgjFUth-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240816/202408160303.FvgjFUth-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408160303.FvgjFUth-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: vmlinux.o: in function `kgdb_arch_init': >> arch/x86/kernel/kgdb.c:416: undefined reference to `execmem_alloc' vim +416 arch/x86/kernel/kgdb.c 410 411 static int kgdb_init_trampolines(void) 412 { 413 /* FIXME: We should reserve enough space for all breakpoints 414 or make the trampoline table dynamic somehow.. */ 415 /* FIXME: Currently borrowing EXECMEM_KPROBES */ > 416 kgdb_trampoline_page = execmem_alloc(EXECMEM_KPROBES, PAGE_SIZE); 417 if (!kgdb_trampoline_page) 418 return 1; 419 memset(kgdb_trampoline_page, INT3_INSN_OPCODE, PAGE_SIZE); 420 set_memory_rox((unsigned long)kgdb_trampoline_page, 1); 421 kgdb_trampoline_page_curr_slot = kgdb_trampoline_page; 422 return 0; 423 } 424 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
