Messages in this thread | | | Date | Mon, 21 Feb 2022 00:02:29 +0800 | From | kernel test robot <> | Subject | [peterz-queue:x86/wip.ibt 19/31] arch/x86/kernel/alternative.c:761:16: error: expected string literal in 'asm' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.ibt head: fecdb8a84191710ffe01c9492fceb34a15f1576a commit: 97e04204b3c4f0515f956be22a19229878b9253e [19/31] x86/ibt: Annotate text references config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220220/202202202357.ldfBr75W-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) 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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=97e04204b3c4f0515f956be22a19229878b9253e git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue x86/wip.ibt git checkout 97e04204b3c4f0515f956be22a19229878b9253e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
arch/x86/kernel/alternative.c:716:2: error: expected ')' ANNOTATE_NOENDBR ^ arch/x86/kernel/alternative.c:712:5: note: to match this '(' asm ( ^ >> arch/x86/kernel/alternative.c:761:16: error: expected string literal in 'asm' asm volatile (ANNOTATE_NOENDBR ^ 2 errors generated.
vim +/asm +761 arch/x86/kernel/alternative.c
743 744 static void __init int3_selftest(void) 745 { 746 static __initdata struct notifier_block int3_exception_nb = { 747 .notifier_call = int3_exception_notify, 748 .priority = INT_MAX-1, /* last */ 749 }; 750 unsigned int val = 0; 751 752 BUG_ON(register_die_notifier(&int3_exception_nb)); 753 754 /* 755 * Basically: int3_magic(&val); but really complicated :-) 756 * 757 * Stick the address of the INT3 instruction into int3_selftest_ip, 758 * then trigger the INT3, padded with NOPs to match a CALL instruction 759 * length. 760 */ > 761 asm volatile (ANNOTATE_NOENDBR 762 "1: int3; nop; nop; nop; nop\n\t" 763 ".pushsection .init.data,\"aw\"\n\t" 764 ".align " __ASM_SEL(4, 8) "\n\t" 765 ".type int3_selftest_ip, @object\n\t" 766 ".size int3_selftest_ip, " __ASM_SEL(4, 8) "\n\t" 767 "int3_selftest_ip:\n\t" 768 __ASM_SEL(.long, .quad) " 1b\n\t" 769 ".popsection\n\t" 770 : ASM_CALL_CONSTRAINT 771 : __ASM_SEL_RAW(a, D) (&val) 772 : "memory"); 773 774 BUG_ON(val != 1); 775 776 unregister_die_notifier(&int3_exception_nb); 777 } 778
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