Hello Russel, this is a second report on the same problem, shall I add https://www.spinics.net/lists/kernel/msg3968916.html to your patch system? On 01/07/2021 06:36, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 2e0046650f0f192a84a1793f0dc2f0991ed9a3e4 > commit: 79f32b221b18c15a98507b101ef4beb52444cc6f [6560/14009] ARM: 9079/1: ftrace: Add MODULE_PLTS support > config: arm-randconfig-r003-20210630 (attached as .config) > compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) > 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 arm cross compiling tool for clang build > # apt-get install binutils-arm-linux-gnueabi > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=79f32b221b18c15a98507b101ef4beb52444cc6f > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 79f32b221b18c15a98507b101ef4beb52444cc6f > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=arm SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > >>> arch/arm/kernel/module-plts.c:26:2: error: use of undeclared identifier 'FTRACE_ADDR' > FTRACE_ADDR, > ^ >>> arch/arm/kernel/module-plts.c:40:7: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > if (!ARRAY_SIZE(fixed_plts) || pltsec->plt_count) > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/kernel.h:42:32: note: expanded from macro 'ARRAY_SIZE' > #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) > ^~~~~ > arch/arm/kernel/module-plts.c:42:22: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > pltsec->plt_count = ARRAY_SIZE(fixed_plts); > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/kernel.h:42:32: note: expanded from macro 'ARRAY_SIZE' > #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) > ^~~~~ > arch/arm/kernel/module-plts.c:47:21: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > BUILD_BUG_ON(sizeof(fixed_plts) > sizeof(plt->lit)); > ^~~~~~~~~~~~ > include/linux/build_bug.h:50:19: note: expanded from macro 'BUILD_BUG_ON' > BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) > ^~~~~~~~~ > include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' > #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) > ^~~~ > include/linux/compiler_types.h:328:22: note: expanded from macro 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) > ^~~~~~~~~ > include/linux/compiler_types.h:316:23: note: expanded from macro '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ^~~~~~~~~ > include/linux/compiler_types.h:308:9: note: expanded from macro '__compiletime_assert' > if (!(condition)) \ > ^~~~~~~~~ > arch/arm/kernel/module-plts.c:48:37: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > memcpy(plt->lit, fixed_plts, sizeof(fixed_plts)); > ^~~~~~~~~~~~ > arch/arm/kernel/module-plts.c:65:22: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > for (idx = 0; idx < ARRAY_SIZE(fixed_plts); ++idx) > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/kernel.h:42:32: note: expanded from macro 'ARRAY_SIZE' > #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) > ^~~~~ > arch/arm/kernel/module-plts.c:217:28: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > unsigned long core_plts = ARRAY_SIZE(fixed_plts); > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/kernel.h:42:32: note: expanded from macro 'ARRAY_SIZE' > #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) > ^~~~~ > arch/arm/kernel/module-plts.c:218:28: error: invalid application of 'sizeof' to an incomplete type 'const u32 []' > unsigned long init_plts = ARRAY_SIZE(fixed_plts); > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/kernel.h:42:32: note: expanded from macro 'ARRAY_SIZE' > #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) > ^~~~~ > 8 errors generated. > > > vim +/FTRACE_ADDR +26 arch/arm/kernel/module-plts.c > > 23 > 24 static const u32 fixed_plts[] = { > 25 #ifdef CONFIG_FUNCTION_TRACER > > 26 FTRACE_ADDR, > 27 MCOUNT_ADDR, > 28 #endif > 29 }; > 30 > 31 static bool in_init(const struct module *mod, unsigned long loc) > 32 { > 33 return loc - (u32)mod->init_layout.base < mod->init_layout.size; > 34 } > 35 > 36 static void prealloc_fixed(struct mod_plt_sec *pltsec, struct plt_entries *plt) > 37 { > 38 int i; > 39 > > 40 if (!ARRAY_SIZE(fixed_plts) || pltsec->plt_count) > 41 return; > 42 pltsec->plt_count = ARRAY_SIZE(fixed_plts); > 43 > 44 for (i = 0; i < ARRAY_SIZE(plt->ldr); ++i) > 45 plt->ldr[i] = PLT_ENT_LDR; > 46 > 47 BUILD_BUG_ON(sizeof(fixed_plts) > sizeof(plt->lit)); > 48 memcpy(plt->lit, fixed_plts, sizeof(fixed_plts)); > 49 } > 50 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx > -- Best regards, Alexander Sverdlin.
