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Subject[peterz-queue:x86/wip.ibt 19/31] arch/x86/kernel/alternative.c:761:16: error: expected string literal in 'asm'
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

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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