Hi Yinan, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on kbuild/for-next trace/for-next linus/master v5.14 next-20210910] [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] url: https://github.com/0day-ci/linux/commits/Yinan-Liu/ftrace-improve-ftrace-... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 4034fb207e302cc0b1f304084d379640c1fb1436 config: sparc-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 11.2.0 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://github.com/0day-ci/linux/commit/54d68f2f4f2f10bb9939f8f532615295b... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yinan-Liu/ftrace-improve-ftrace-during-compiling/20210911-215230 git checkout 54d68f2f4f2f10bb9939f8f532615295bf52ce96 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc olddefconfig If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from scripts/recordmcount.c:423: scripts/recordmcount.h: In function 'sift32_rel_mcount': 450 | ulseek(fd_map, (void *)relp - (void *)ehdr, SEEK_SET); | ^~~~~~ scripts/recordmcount.c:81:14: note: declared here 81 | static off_t ulseek(off_t const offset, int const whence) | ^~~~~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ | | | int scripts/recordmcount.c:101:41: note: expected 'const void * const' but argument is of type 'int' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~~~~~~^~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~ | | | Elf32_Rel * scripts/recordmcount.c:101:59: note: expected 'size_t' {aka 'const long unsigned int'} but argument is of type 'Elf32_Rel *' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~^~~~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ scripts/recordmcount.c:101:16: note: declared here 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ^~~~~~ In file included from scripts/recordmcount.c:425: scripts/recordmcount.h: In function 'sift64_rel_mcount': 450 | ulseek(fd_map, (void *)relp - (void *)ehdr, SEEK_SET); | ^~~~~~ scripts/recordmcount.c:81:14: note: declared here 81 | static off_t ulseek(off_t const offset, int const whence) | ^~~~~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ | | | int scripts/recordmcount.c:101:41: note: expected 'const void * const' but argument is of type 'int' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~~~~~~^~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~ | | | Elf64_Rel * scripts/recordmcount.c:101:59: note: expected 'size_t' {aka 'const long unsigned int'} but argument is of type 'Elf64_Rel *' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~^~~~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ scripts/recordmcount.c:101:16: note: declared here 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ^~~~~~ make[2]: *** [scripts/Makefile.host:95: scripts/recordmcount] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1196: scripts] Error 2 make[1]: Target 'modules_prepare' not remade because of errors. make: *** [Makefile:220: __sub-make] Error 2 make: Target 'modules_prepare' not remade because of errors. -- In file included from scripts/recordmcount.c:423: scripts/recordmcount.h: In function 'sift32_rel_mcount': 450 | ulseek(fd_map, (void *)relp - (void *)ehdr, SEEK_SET); | ^~~~~~ scripts/recordmcount.c:81:14: note: declared here 81 | static off_t ulseek(off_t const offset, int const whence) | ^~~~~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ | | | int scripts/recordmcount.c:101:41: note: expected 'const void * const' but argument is of type 'int' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~~~~~~^~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~ | | | Elf32_Rel * scripts/recordmcount.c:101:59: note: expected 'size_t' {aka 'const long unsigned int'} but argument is of type 'Elf32_Rel *' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~^~~~~ In file included from scripts/recordmcount.c:423: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ scripts/recordmcount.c:101:16: note: declared here 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ^~~~~~ In file included from scripts/recordmcount.c:425: scripts/recordmcount.h: In function 'sift64_rel_mcount': 450 | ulseek(fd_map, (void *)relp - (void *)ehdr, SEEK_SET); | ^~~~~~ scripts/recordmcount.c:81:14: note: declared here 81 | static off_t ulseek(off_t const offset, int const whence) | ^~~~~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ | | | int scripts/recordmcount.c:101:41: note: expected 'const void * const' but argument is of type 'int' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~~~~~~^~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~ | | | Elf64_Rel * scripts/recordmcount.c:101:59: note: expected 'size_t' {aka 'const long unsigned int'} but argument is of type 'Elf64_Rel *' 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ~~~~~~~~~~~~~^~~~~ In file included from scripts/recordmcount.c:425: 451 | uwrite(fd_map, &rel, sizeof(rel)); | ^~~~~~ scripts/recordmcount.c:101:16: note: declared here 101 | static ssize_t uwrite(void const *const buf, size_t const count) | ^~~~~~ make[2]: *** [scripts/Makefile.host:95: scripts/recordmcount] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1196: scripts] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:220: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/ulseek +450 scripts/recordmcount.h 394 395 /* 396 * Look at the relocations in order to find the calls to mcount. 397 * Accumulate the section offsets that are found, and their relocation info, 398 * onto the end of the existing arrays. 399 */ 400 static uint_t *sift_rel_mcount(uint_t *mlocp, 401 unsigned const offbase, 402 Elf_Rel **const mrelpp, 403 Elf_Shdr const *const relhdr, 404 Elf_Ehdr const *const ehdr, 405 unsigned const recsym, 406 uint_t const recval, 407 unsigned const reltype) 408 { 409 Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff) + (void *)ehdr); 410 Elf_Shdr const *const shdr = &shdr0[w(relhdr->sh_info)]; 411 uint_t *const mloc0 = mlocp; 412 Elf_Rel *mrelp = *mrelpp; 413 Elf_Sym const *sym0; 414 char const *str0; 415 Elf_Rel const *relp; 416 unsigned rel_entsize = _w(relhdr->sh_entsize); 417 unsigned const nrel = _w(relhdr->sh_size) / rel_entsize; 418 unsigned mcountsym = 0; 419 unsigned t; 420 421 get_sym_str_and_relp(relhdr, ehdr, &sym0, &str0, &relp); 422 423 for (t = nrel; t; --t) { 424 int ret = -1; 425 if (!mcountsym) 426 mcountsym = get_mcountsym(sym0, relp, str0); 427 428 if (mcountsym && mcountsym == Elf_r_sym(relp) && 429 !is_fake_mcount(relp)) { 430 uint_t const addend = 431 _w(_w(relp->r_offset) - recval + mcount_adjust); 432 mrelp->r_offset = _w(offbase 433 + ((void *)mlocp - (void *)mloc0)); 434 Elf_r_info(mrelp, recsym, reltype); 435 if (rel_entsize == sizeof(Elf_Rela)) { 436 ((Elf_Rela *)mrelp)->r_addend = addend; 437 *mlocp++ = 0; 438 } else 439 *mlocp++ = addend; 440 441 mrelp = (Elf_Rel *)(rel_entsize + (void *)mrelp); 442 /* convert mcount into nop */ 443 if (make_nop) 444 ret = make_nop((void *)ehdr, 445 _w(shdr->sh_offset) + _w(relp->r_offset)); 446 if (!ret) { 447 Elf_Rel rel; 448 rel = *(Elf_Rel *)relp; 449 Elf_r_info(&rel, Elf_r_sym(relp), rel_type_nop); 452 } 453 } 454 relp = (Elf_Rel const *)(rel_entsize + (void *)relp); 455 } 456 *mrelpp = mrelp; 457 return mlocp; 458 } 459 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org