Hello Jan, I see, thanks for the quick response.
Best regards Jona -----Ursprüngliche Nachricht----- Von: Jan Kiszka <[email protected]> Gesendet: Donnerstag, 19. November 2020 08:06 An: Jona Ostermann <[email protected]>; [email protected] 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
