tree: https://github.com/rgushchin/linux.git kmem_reparent.2 head: 9bcad55670928ba9722a8f9872d4db60d5bddea8 commit: 09d6592c219876dd21a11f1c3d35134ccb6937e1 [270/351] binfmt_elf: Update READ_IMPLIES_EXEC logic for modern CPUs config: arm64-alldefconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 09d6592c219876dd21a11f1c3d35134ccb6937e1 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from include/linux/elf.h:5:0, from include/linux/module.h:15, from fs/binfmt_elf.c:12: fs/binfmt_elf.c: In function 'load_elf_binary': >> arch/arm64/include/asm/elf.h:117:3: error: implicit declaration of function 'is_compat_task'; did you mean 'is_idle_task'? [-Werror=implicit-function-declaration] (is_compat_task() && stk == EXSTACK_DEFAULT) ^ >> fs/binfmt_elf.c:873:6: note: in expansion of macro 'elf_read_implies_exec' if (elf_read_implies_exec(loc->elf_ex, executable_stack)) ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +117 arch/arm64/include/asm/elf.h 109 110 /* 111 * 64-bit processes should not automatically gain READ_IMPLIES_EXEC. Only 112 * 32-bit processes without PT_GNU_STACK should trigger READ_IMPLIES_EXEC 113 * out of an abundance of caution against ancient toolchains not knowing 114 * how to mark memory protection flags correctly. 115 */ 116 #define elf_read_implies_exec(ex, stk) \ > 117 (is_compat_task() && stk == EXSTACK_DEFAULT) 118 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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