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
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