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* Xenomai patch for kernel 4.19.94 i386
@ 2020-11-18 21:32 Jona Ostermann
  2020-11-19  7:05 ` Jan Kiszka
  0 siblings, 1 reply; 3+ messages in thread
From: Jona Ostermann @ 2020-11-18 21:32 UTC (permalink / raw)
  To: xenomai

Hello,

I am trying to build the linux kernel version 4.19.94 with xenomai 3.1 and the ipipe patch version 4.19.94-cip18-x86-10 on a debian 9 system.
I did not change anything in the kernel config except for disabling Hyper-V.
This works fine for the 64 bit kernel, but if I try to build a 32 bit kernel I get an error:

+ make -j 4
Makefile:590: include/config/auto.conf: No such file or directory
Makefile:621: include/config/auto.conf.cmd: No such file or directory
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  YACC    scripts/kconfig/zconf.tab.c
  LEX     scripts/kconfig/zconf.lex.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf  --syncconfig Kconfig

WARNING: unmet direct dependencies detected for IPIPE
  Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
  Selected by [y]:
  - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])

WARNING: unmet direct dependencies detected for IPIPE
  Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
  Selected by [y]:
  - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])
  SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
  WRAP    arch/x86/include/generated/uapi/asm/bpf_perf_event.h
[...]
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/extract-cert
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  UPD     include/generated/bounds.h
  CC      arch/x86/kernel/asm-offsets.s
In file included from ./arch/x86/include/asm/uaccess.h:10:0,
                 from ./include/linux/uaccess.h:14,
                 from ./include/linux/crypto.h:26,
                 from arch/x86/kernel/asm-offsets.c:9:
./include/linux/ipipe.h:223:28: error: field 'arch' has incomplete type
  struct ipipe_arch_sysinfo arch;
                            ^~~~
Kbuild:56: recipe for target 'arch/x86/kernel/asm-offsets.s' failed
make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
Makefile:1102: recipe for target 'prepare0' failed


This output is from a 32 bit system, I get the same error if I try to build on a 64 bit system with "make ARCH=i386".
I have also checked the kernel config HAVE_IPIPE_SUPPORT via "make menuconfig", it says:

Symbol: HAVE_IPIPE_SUPPORT [=n]
  x Type  : bool
  x   Defined at kernel/ipipe/Kconfig:2
  x   Depends on: GENERIC_CLOCKEVENTS [=y] 
  x   Selected by [n]: 
  x   - X86 [=y] && X86_64 [=n]


Does this mean I can only build a 64 bit kernel with version 4.19.94 as there is no ipipe support for 32 bit or am I misinterpreting the HAVE_IPIPE_SUPPORT warning?
What else could be the issue?


Best regards
Jona


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Xenomai patch for kernel 4.19.94 i386
  2020-11-18 21:32 Xenomai patch for kernel 4.19.94 i386 Jona Ostermann
@ 2020-11-19  7:05 ` Jan Kiszka
  2020-11-19  8:07   ` AW: " Jona Ostermann
  0 siblings, 1 reply; 3+ messages in thread
From: Jan Kiszka @ 2020-11-19  7:05 UTC (permalink / raw)
  To: Jona Ostermann, xenomai

On 18.11.20 22:32, Jona Ostermann via Xenomai wrote:
> Hello,
> 
> I am trying to build the linux kernel version 4.19.94 with xenomai 3.1 and the ipipe patch version 4.19.94-cip18-x86-10 on a debian 9 system.
> I did not change anything in the kernel config except for disabling Hyper-V.
> This works fine for the 64 bit kernel, but if I try to build a 32 bit kernel I get an error:
> 
> + make -j 4
> Makefile:590: include/config/auto.conf: No such file or directory
> Makefile:621: include/config/auto.conf.cmd: No such file or directory
>   HOSTCC  scripts/basic/fixdep
>   HOSTCC  scripts/kconfig/conf.o
>   YACC    scripts/kconfig/zconf.tab.c
>   LEX     scripts/kconfig/zconf.lex.c
>   HOSTCC  scripts/kconfig/zconf.tab.o
>   HOSTLD  scripts/kconfig/conf
> scripts/kconfig/conf  --syncconfig Kconfig
> 
> WARNING: unmet direct dependencies detected for IPIPE
>   Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
>   Selected by [y]:
>   - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])
> 
> WARNING: unmet direct dependencies detected for IPIPE
>   Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
>   Selected by [y]:
>   - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])
>   SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
>   WRAP    arch/x86/include/generated/uapi/asm/bpf_perf_event.h
> [...]
>   HOSTCC  scripts/asn1_compiler
>   HOSTCC  scripts/extract-cert
>   CC      kernel/bounds.s
>   UPD     include/generated/timeconst.h
>   UPD     include/generated/bounds.h
>   CC      arch/x86/kernel/asm-offsets.s
> In file included from ./arch/x86/include/asm/uaccess.h:10:0,
>                  from ./include/linux/uaccess.h:14,
>                  from ./include/linux/crypto.h:26,
>                  from arch/x86/kernel/asm-offsets.c:9:
> ./include/linux/ipipe.h:223:28: error: field 'arch' has incomplete type
>   struct ipipe_arch_sysinfo arch;
>                             ^~~~
> Kbuild:56: recipe for target 'arch/x86/kernel/asm-offsets.s' failed
> make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> Makefile:1102: recipe for target 'prepare0' failed
> 
> 
> This output is from a 32 bit system, I get the same error if I try to build on a 64 bit system with "make ARCH=i386".
> I have also checked the kernel config HAVE_IPIPE_SUPPORT via "make menuconfig", it says:
> 
> Symbol: HAVE_IPIPE_SUPPORT [=n]
>   x Type  : bool
>   x   Defined at kernel/ipipe/Kconfig:2
>   x   Depends on: GENERIC_CLOCKEVENTS [=y] 
>   x   Selected by [n]: 
>   x   - X86 [=y] && X86_64 [=n]
> 
> 
> Does this mean I can only build a 64 bit kernel with version 4.19.94 as there is no ipipe support for 32 bit or am I misinterpreting the HAVE_IPIPE_SUPPORT warning?
> What else could be the issue?
> 

We've stopped supporting i386 configurations for the kernel. Even
vanilla i386 receives minimal testing, for many years now. Everyone is
at least on a 64-bit kernel if not also userland, possibly with compat
support for 32-bit applications. In fact, the latter is what we are also
using in one product.

Jan

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux


^ permalink raw reply	[flat|nested] 3+ messages in thread

* AW: Xenomai patch for kernel 4.19.94 i386
  2020-11-19  7:05 ` Jan Kiszka
@ 2020-11-19  8:07   ` Jona Ostermann
  0 siblings, 0 replies; 3+ messages in thread
From: Jona Ostermann @ 2020-11-19  8:07 UTC (permalink / raw)
  To: Jan Kiszka, xenomai

Hello Jan,

I see, thanks for the quick response.

Best regards
Jona

-----Ursprüngliche Nachricht-----
Von: Jan Kiszka <jan.kiszka@siemens.com> 
Gesendet: Donnerstag, 19. November 2020 08:06
An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
Betreff: Re: Xenomai patch for kernel 4.19.94 i386

On 18.11.20 22:32, Jona Ostermann via Xenomai wrote:
> Hello,
> 
> I am trying to build the linux kernel version 4.19.94 with xenomai 3.1 and the ipipe patch version 4.19.94-cip18-x86-10 on a debian 9 system.
> I did not change anything in the kernel config except for disabling Hyper-V.
> This works fine for the 64 bit kernel, but if I try to build a 32 bit kernel I get an error:
> 
> + make -j 4
> Makefile:590: include/config/auto.conf: No such file or directory
> Makefile:621: include/config/auto.conf.cmd: No such file or directory
>   HOSTCC  scripts/basic/fixdep
>   HOSTCC  scripts/kconfig/conf.o
>   YACC    scripts/kconfig/zconf.tab.c
>   LEX     scripts/kconfig/zconf.lex.c
>   HOSTCC  scripts/kconfig/zconf.tab.o
>   HOSTLD  scripts/kconfig/conf
> scripts/kconfig/conf  --syncconfig Kconfig
> 
> WARNING: unmet direct dependencies detected for IPIPE
>   Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
>   Selected by [y]:
>   - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])
> 
> WARNING: unmet direct dependencies detected for IPIPE
>   Depends on [n]: HAVE_IPIPE_SUPPORT [=n]
>   Selected by [y]:
>   - XENOMAI [=y] && (X86_TSC [=y] || !X86 [=y])
>   SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
>   WRAP    arch/x86/include/generated/uapi/asm/bpf_perf_event.h
> [...]
>   HOSTCC  scripts/asn1_compiler
>   HOSTCC  scripts/extract-cert
>   CC      kernel/bounds.s
>   UPD     include/generated/timeconst.h
>   UPD     include/generated/bounds.h
>   CC      arch/x86/kernel/asm-offsets.s
> In file included from ./arch/x86/include/asm/uaccess.h:10:0,
>                  from ./include/linux/uaccess.h:14,
>                  from ./include/linux/crypto.h:26,
>                  from arch/x86/kernel/asm-offsets.c:9:
> ./include/linux/ipipe.h:223:28: error: field 'arch' has incomplete type
>   struct ipipe_arch_sysinfo arch;
>                             ^~~~
> Kbuild:56: recipe for target 'arch/x86/kernel/asm-offsets.s' failed
> make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> Makefile:1102: recipe for target 'prepare0' failed
> 
> 
> This output is from a 32 bit system, I get the same error if I try to build on a 64 bit system with "make ARCH=i386".
> I have also checked the kernel config HAVE_IPIPE_SUPPORT via "make menuconfig", it says:
> 
> Symbol: HAVE_IPIPE_SUPPORT [=n]
>   x Type  : bool
>   x   Defined at kernel/ipipe/Kconfig:2
>   x   Depends on: GENERIC_CLOCKEVENTS [=y] 
>   x   Selected by [n]: 
>   x   - X86 [=y] && X86_64 [=n]
> 
> 
> Does this mean I can only build a 64 bit kernel with version 4.19.94 as there is no ipipe support for 32 bit or am I misinterpreting the HAVE_IPIPE_SUPPORT warning?
> What else could be the issue?
> 

We've stopped supporting i386 configurations for the kernel. Even vanilla i386 receives minimal testing, for many years now. Everyone is at least on a 64-bit kernel if not also userland, possibly with compat support for 32-bit applications. In fact, the latter is what we are also using in one product.

Jan

--
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-11-19  8:07 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-18 21:32 Xenomai patch for kernel 4.19.94 i386 Jona Ostermann
2020-11-19  7:05 ` Jan Kiszka
2020-11-19  8:07   ` AW: " Jona Ostermann

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