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* [luto:x86/no_sce 1/2] arch/x86/entry/common.c:157:6: error: 'vdso_image_32' undeclared; did you mean 'vdso_image_64'?
@ 2021-09-29 17:46 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-09-29 17:46 UTC (permalink / raw)
  To: Andy Lutomirski; +Cc: kbuild-all, linux-kernel

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/no_sce
head:   bfaecaf0dad8f61e80285125f4895c9737e3d6d8
commit: bf85057ed696c8996a5f5b924a3fd58698450511 [1/2] x86/syscall: Remove the IA32_EMULATION=n compat syscall code
config: x86_64-randconfig-c001-20210929 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?id=bf85057ed696c8996a5f5b924a3fd58698450511
        git remote add luto https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git
        git fetch --no-tags luto x86/no_sce
        git checkout bf85057ed696c8996a5f5b924a3fd58698450511
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/

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/entry/common.c: In function 'do_fast_syscall_32':
>> arch/x86/entry/common.c:157:6: error: 'vdso_image_32' undeclared (first use in this function); did you mean 'vdso_image_64'?
     157 |      vdso_image_32.sym_int80_landing_pad;
         |      ^~~~~~~~~~~~~
         |      vdso_image_64
   arch/x86/entry/common.c:157:6: note: each undeclared identifier is reported only once for each function it appears in
   arch/x86/entry/common.c: At top level:
   arch/x86/entry/common.c:202:24: warning: no previous prototype for 'do_SYSENTER_32' [-Wmissing-prototypes]
     202 | __visible noinstr long do_SYSENTER_32(struct pt_regs *regs)
         |                        ^~~~~~~~~~~~~~
--
   arch/x86/kernel/cpu/common.c: In function 'syscall_init':
>> arch/x86/kernel/cpu/common.c:1753:35: error: 'entry_SYSCALL_compat' undeclared (first use in this function); did you mean 'entry_SYSCALL_64'?
    1753 |  wrmsrl(MSR_CSTAR, (unsigned long)entry_SYSCALL_compat);
         |                                   ^~~~~~~~~~~~~~~~~~~~
         |                                   entry_SYSCALL_64
   arch/x86/kernel/cpu/common.c:1753:35: note: each undeclared identifier is reported only once for each function it appears in


vim +157 arch/x86/entry/common.c

8b13c2552ffc8e Andy Lutomirski 2015-10-05  148  
5f310f739b4cc3 Andy Lutomirski 2015-10-05  149  /* Returns 0 to return using IRET or 1 to return using SYSEXIT/SYSRETL. */
8f159f1dfa1ea2 Thomas Gleixner 2020-03-10  150  __visible noinstr long do_fast_syscall_32(struct pt_regs *regs)
710246df580411 Andy Lutomirski 2015-10-05  151  {
710246df580411 Andy Lutomirski 2015-10-05  152  	/*
710246df580411 Andy Lutomirski 2015-10-05  153  	 * Called using the internal vDSO SYSENTER/SYSCALL32 calling
710246df580411 Andy Lutomirski 2015-10-05  154  	 * convention.  Adjust regs so it looks like we entered using int80.
710246df580411 Andy Lutomirski 2015-10-05  155  	 */
710246df580411 Andy Lutomirski 2015-10-05  156  	unsigned long landing_pad = (unsigned long)current->mm->context.vdso +
710246df580411 Andy Lutomirski 2015-10-05 @157  					vdso_image_32.sym_int80_landing_pad;
710246df580411 Andy Lutomirski 2015-10-05  158  
710246df580411 Andy Lutomirski 2015-10-05  159  	/*
710246df580411 Andy Lutomirski 2015-10-05  160  	 * SYSENTER loses EIP, and even SYSCALL32 needs us to skip forward
710246df580411 Andy Lutomirski 2015-10-05  161  	 * so that 'regs->ip -= 2' lands back on an int $0x80 instruction.
710246df580411 Andy Lutomirski 2015-10-05  162  	 * Fix it up.
710246df580411 Andy Lutomirski 2015-10-05  163  	 */
710246df580411 Andy Lutomirski 2015-10-05  164  	regs->ip = landing_pad;
710246df580411 Andy Lutomirski 2015-10-05  165  
0b085e68f40720 Thomas Gleixner 2020-07-23  166  	/* Invoke the syscall. If it failed, keep it simple: use IRET. */
0b085e68f40720 Thomas Gleixner 2020-07-23  167  	if (!__do_fast_syscall_32(regs))
8f159f1dfa1ea2 Thomas Gleixner 2020-03-10  168  		return 0;
7841b408717d4c Andy Lutomirski 2015-10-05  169  

:::::: The code at line 157 was first introduced by commit
:::::: 710246df58041106b7de645f4b45770f8a59a269 x86/entry: Add C code for fast system call entries

:::::: TO: Andy Lutomirski <luto@kernel.org>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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

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2021-09-29 17:46 [luto:x86/no_sce 1/2] arch/x86/entry/common.c:157:6: error: 'vdso_image_32' undeclared; did you mean 'vdso_image_64'? kernel test robot

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