linux-kernel - Re: [PATCH v2 11/11] um: switch ptrace FP register access to nolibc

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Message-ID: <202509200433.l6pWDPhh-lkp@intel.com>
Date: Sat, 20 Sep 2025 04:50:26 +0800
From: kernel test robot <lkp@...el.com>
To: Benjamin Berg <benjamin@...solutions.net>, linux-um@...ts.infradead.org,
	Willy Tarreau <w@....eu>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	linux-kselftest@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Benjamin Berg <benjamin.berg@...el.com>
Subject: Re: [PATCH v2 11/11] um: switch ptrace FP register access to nolibc

Hi Benjamin,

kernel test robot noticed the following build errors:

[auto build test ERROR on uml/next]
[also build test ERROR on uml/fixes shuah-kselftest/next shuah-kselftest/fixes linus/master v6.17-rc6 next-20250919]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Benjamin-Berg/tools-compiler-h-fix-__used-definition/20250919-233959
base:   https://git.kernel.org/pub/scm/linux/kernel/git/uml/linux next
patch link:    https://lore.kernel.org/r/20250919153420.727385-12-benjamin%40sipsolutions.net
patch subject: [PATCH v2 11/11] um: switch ptrace FP register access to nolibc
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20250920/202509200433.l6pWDPhh-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 7c861bcedf61607b6c087380ac711eb7ff918ca6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250920/202509200433.l6pWDPhh-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509200433.l6pWDPhh-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> arch/x86/um/os-Linux/registers.c:11:10: fatal error: 'sys/user.h' file not found
      11 | #include <sys/user.h>
         |          ^~~~~~~~~~~~
   1 error generated.
--
>> clang: warning: no such include directory: './arch/um/include/shared' [-Wmissing-include-dirs]


vim +11 arch/x86/um/os-Linux/registers.c

14c8a77e1bbd69 arch/um/os-Linux/sys-i386/registers.c Jeff Dike          2008-06-12 @11  #include <sys/user.h>
38b64aed786d59 arch/x86/um/os-Linux/registers.c      Richard Weinberger 2011-08-18  12  #endif
37185b33240870 arch/x86/um/os-Linux/registers.c      Al Viro            2012-10-08  13  #include <longjmp.h>
37185b33240870 arch/x86/um/os-Linux/registers.c      Al Viro            2012-10-08  14  #include <sysdep/ptrace_user.h>
a78ff1112263fd arch/x86/um/os-Linux/registers.c      Eli Cooper         2016-03-20  15  #include <sys/uio.h>
a78ff1112263fd arch/x86/um/os-Linux/registers.c      Eli Cooper         2016-03-20  16  #include <asm/sigcontext.h>
a78ff1112263fd arch/x86/um/os-Linux/registers.c      Eli Cooper         2016-03-20  17  #include <linux/elf.h>
dbba7f704aa0c3 arch/x86/um/os-Linux/registers.c      Al Viro            2021-09-20  18  #include <registers.h>
3f17fed2149192 arch/x86/um/os-Linux/registers.c      Benjamin Berg      2024-10-23  19  #include <sys/mman.h>
^1da177e4c3f41 arch/um/os-Linux/sys-i386/registers.c Linus Torvalds     2005-04-16  20  

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