* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support [not found] ` <20210117201500.GO457607@kernel.org> @ 2021-02-04 1:31 ` Nick Desaulniers 2021-02-04 2:57 ` Andrii Nakryiko 0 siblings, 1 reply; 7+ messages in thread From: Nick Desaulniers @ 2021-02-04 1:31 UTC (permalink / raw) To: Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa Cc: Sedat Dilek, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Sun, Jan 17, 2021 at 12:14 PM Arnaldo Carvalho de Melo <acme@kernel.org> wrote: > > Em Fri, Jan 15, 2021 at 03:43:06PM -0800, Yonghong Song escreveu: > > > > > > On 1/15/21 3:34 PM, Nick Desaulniers wrote: > > > On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@fb.com> wrote: > > > > > > > > > > > > > > > > On 1/15/21 1:53 PM, Sedat Dilek wrote: > > > > > En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and > > > > > CONFIG_DEBUG_INFO_DWARF4. > > > > > So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination. > > > > > > Can you privately send me your configs that repro? Maybe I can isolate > > > it to a set of configs? > > > > > > > > > > > I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4. > > > > It is not there before and adding this may suddenly break some users. > > > > > > > > If certain combination of gcc/llvm does not work for > > > > CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community > > > > should fix. > > > > > > Is there a place I should report bugs? > > > > You can send bug report to Arnaldo Carvalho de Melo <acme@kernel.org>, > > dwarves@vger.kernel.org and bpf@vger.kernel.org. > > I'm coming back from vacation, will try to read the messages and see if > I can fix this. IDK about DWARF v4; that seems to work for me. I was previously observing https://bugzilla.redhat.com/show_bug.cgi?id=1922698 with DWARF v5. I just re-pulled the latest pahole, rebuilt, and no longer see that warning. I now observe a different set. I plan on attending "BPF office hours tomorrow morning," but if anyone wants a sneak peak of the errors and how to reproduce: https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 (FWIW: some other folks are hitting issues now with kernel's lack of DWARF v5 support: https://bugzilla.redhat.com/show_bug.cgi?id=1922707) -- Thanks, ~Nick Desaulniers ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 1:31 ` [PATCH v5 0/3] Kbuild: DWARF v5 support Nick Desaulniers @ 2021-02-04 2:57 ` Andrii Nakryiko 2021-02-04 3:13 ` Nick Desaulniers 2021-02-04 8:42 ` Sedat Dilek 0 siblings, 2 replies; 7+ messages in thread From: Andrii Nakryiko @ 2021-02-04 2:57 UTC (permalink / raw) To: Nick Desaulniers Cc: Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Sedat Dilek, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Wed, Feb 3, 2021 at 5:31 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > On Sun, Jan 17, 2021 at 12:14 PM Arnaldo Carvalho de Melo > <acme@kernel.org> wrote: > > > > Em Fri, Jan 15, 2021 at 03:43:06PM -0800, Yonghong Song escreveu: > > > > > > > > > On 1/15/21 3:34 PM, Nick Desaulniers wrote: > > > > On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@fb.com> wrote: > > > > > > > > > > > > > > > > > > > > On 1/15/21 1:53 PM, Sedat Dilek wrote: > > > > > > En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and > > > > > > CONFIG_DEBUG_INFO_DWARF4. > > > > > > So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination. > > > > > > > > Can you privately send me your configs that repro? Maybe I can isolate > > > > it to a set of configs? > > > > > > > > > > > > > > I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4. > > > > > It is not there before and adding this may suddenly break some users. > > > > > > > > > > If certain combination of gcc/llvm does not work for > > > > > CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community > > > > > should fix. > > > > > > > > Is there a place I should report bugs? > > > > > > You can send bug report to Arnaldo Carvalho de Melo <acme@kernel.org>, > > > dwarves@vger.kernel.org and bpf@vger.kernel.org. > > > > I'm coming back from vacation, will try to read the messages and see if > > I can fix this. > > IDK about DWARF v4; that seems to work for me. I was previously observing > https://bugzilla.redhat.com/show_bug.cgi?id=1922698 > with DWARF v5. I just re-pulled the latest pahole, rebuilt, and no > longer see that warning. > > I now observe a different set. I plan on attending "BPF office hours > tomorrow morning," but if anyone wants a sneak peak of the errors and > how to reproduce: > https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 > Is there another (easy) way to get your patch set without the b4 tool? Is your patch set present in some patchworks instance, so that I can download it in mbox format, for example? > > (FWIW: some other folks are hitting issues now with kernel's lack of > DWARF v5 support: https://bugzilla.redhat.com/show_bug.cgi?id=1922707) > -- > Thanks, > ~Nick Desaulniers ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 2:57 ` Andrii Nakryiko @ 2021-02-04 3:13 ` Nick Desaulniers 2021-02-04 23:54 ` Andrii Nakryiko 2021-02-04 8:42 ` Sedat Dilek 1 sibling, 1 reply; 7+ messages in thread From: Nick Desaulniers @ 2021-02-04 3:13 UTC (permalink / raw) To: Andrii Nakryiko Cc: Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Sedat Dilek, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Wed, Feb 3, 2021 at 6:58 PM Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote: > > On Wed, Feb 3, 2021 at 5:31 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > > > On Sun, Jan 17, 2021 at 12:14 PM Arnaldo Carvalho de Melo > > <acme@kernel.org> wrote: > > > > > > Em Fri, Jan 15, 2021 at 03:43:06PM -0800, Yonghong Song escreveu: > > > > > > > > > > > > On 1/15/21 3:34 PM, Nick Desaulniers wrote: > > > > > On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@fb.com> wrote: > > > > > > > > > > > > > > > > > > > > > > > > On 1/15/21 1:53 PM, Sedat Dilek wrote: > > > > > > > En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and > > > > > > > CONFIG_DEBUG_INFO_DWARF4. > > > > > > > So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination. > > > > > > > > > > Can you privately send me your configs that repro? Maybe I can isolate > > > > > it to a set of configs? > > > > > > > > > > > > > > > > > I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4. > > > > > > It is not there before and adding this may suddenly break some users. > > > > > > > > > > > > If certain combination of gcc/llvm does not work for > > > > > > CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community > > > > > > should fix. > > > > > > > > > > Is there a place I should report bugs? > > > > > > > > You can send bug report to Arnaldo Carvalho de Melo <acme@kernel.org>, > > > > dwarves@vger.kernel.org and bpf@vger.kernel.org. > > > > > > I'm coming back from vacation, will try to read the messages and see if > > > I can fix this. > > > > IDK about DWARF v4; that seems to work for me. I was previously observing > > https://bugzilla.redhat.com/show_bug.cgi?id=1922698 > > with DWARF v5. I just re-pulled the latest pahole, rebuilt, and no > > longer see that warning. > > > > I now observe a different set. I plan on attending "BPF office hours > > tomorrow morning," but if anyone wants a sneak peak of the errors and > > how to reproduce: > > https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 > > > > Is there another (easy) way to get your patch set without the b4 tool? > Is your patch set present in some patchworks instance, so that I can > download it in mbox format, for example? $ wget https://lore.kernel.org/lkml/20210130004401.2528717-2-ndesaulniers@google.com/raw -O - | git am $ wget https://lore.kernel.org/lkml/20210130004401.2528717-3-ndesaulniers@google.com/raw -O - | git am If you haven't tried b4 yet, it's quite nice. Hard to go back. Lore also has mbox.gz links. Not sure about patchwork. > > > > > (FWIW: some other folks are hitting issues now with kernel's lack of > > DWARF v5 support: https://bugzilla.redhat.com/show_bug.cgi?id=1922707) -- Thanks, ~Nick Desaulniers ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 3:13 ` Nick Desaulniers @ 2021-02-04 23:54 ` Andrii Nakryiko 2021-02-05 0:04 ` Nick Desaulniers 0 siblings, 1 reply; 7+ messages in thread From: Andrii Nakryiko @ 2021-02-04 23:54 UTC (permalink / raw) To: Nick Desaulniers Cc: Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Sedat Dilek, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Wed, Feb 3, 2021 at 7:13 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > On Wed, Feb 3, 2021 at 6:58 PM Andrii Nakryiko > <andrii.nakryiko@gmail.com> wrote: > > > > On Wed, Feb 3, 2021 at 5:31 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > > > > > On Sun, Jan 17, 2021 at 12:14 PM Arnaldo Carvalho de Melo > > > <acme@kernel.org> wrote: > > > > > > > > Em Fri, Jan 15, 2021 at 03:43:06PM -0800, Yonghong Song escreveu: > > > > > > > > > > > > > > > On 1/15/21 3:34 PM, Nick Desaulniers wrote: > > > > > > On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@fb.com> wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 1/15/21 1:53 PM, Sedat Dilek wrote: > > > > > > > > En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and > > > > > > > > CONFIG_DEBUG_INFO_DWARF4. > > > > > > > > So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination. > > > > > > > > > > > > Can you privately send me your configs that repro? Maybe I can isolate > > > > > > it to a set of configs? > > > > > > > > > > > > > > > > > > > > I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4. > > > > > > > It is not there before and adding this may suddenly break some users. > > > > > > > > > > > > > > If certain combination of gcc/llvm does not work for > > > > > > > CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community > > > > > > > should fix. > > > > > > > > > > > > Is there a place I should report bugs? > > > > > > > > > > You can send bug report to Arnaldo Carvalho de Melo <acme@kernel.org>, > > > > > dwarves@vger.kernel.org and bpf@vger.kernel.org. > > > > > > > > I'm coming back from vacation, will try to read the messages and see if > > > > I can fix this. > > > > > > IDK about DWARF v4; that seems to work for me. I was previously observing > > > https://bugzilla.redhat.com/show_bug.cgi?id=1922698 > > > with DWARF v5. I just re-pulled the latest pahole, rebuilt, and no > > > longer see that warning. > > > > > > I now observe a different set. I plan on attending "BPF office hours > > > tomorrow morning," but if anyone wants a sneak peak of the errors and > > > how to reproduce: > > > https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 > > > > > > > Is there another (easy) way to get your patch set without the b4 tool? > > Is your patch set present in some patchworks instance, so that I can > > download it in mbox format, for example? > > $ wget https://lore.kernel.org/lkml/20210130004401.2528717-2-ndesaulniers@google.com/raw > -O - | git am > $ wget https://lore.kernel.org/lkml/20210130004401.2528717-3-ndesaulniers@google.com/raw > -O - | git am > > If you haven't tried b4 yet, it's quite nice. Hard to go back. Lore > also has mbox.gz links. Not sure about patchwork. > Ok, I managed to apply that on linux-next, but I can't get past this: ld.lld: error: undefined symbol: pa_trampoline_start >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) ld.lld: error: undefined symbol: pa_trampoline_header >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) ld.lld: error: undefined symbol: pa_trampoline_pgd >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) >>> referenced by trampoline_64.S:142 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:142) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) ld.lld: error: undefined symbol: pa_wakeup_start >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) ld.lld: error: undefined symbol: pa_wakeup_header >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) ld.lld: error: undefined symbol: pa_machine_real_restart_asm >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) ld.lld: error: undefined symbol: pa_startup_32 >>> referenced by trampoline_64.S:77 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:77) >>> arch/x86/realmode/rm/trampoline_64.o:(trampoline_start) ld.lld: error: undefined symbol: pa_tr_flags >>> referenced by trampoline_64.S:124 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:124) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) ld.lld: error: undefined symbol: pa_tr_cr4 >>> referenced by trampoline_64.S:138 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:138) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) ld.lld: error: undefined symbol: pa_tr_efer >>> referenced by trampoline_64.S:146 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:146) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) >>> referenced by trampoline_64.S:147 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:147) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) ld.lld: error: undefined symbol: pa_startup_64 >>> referenced by trampoline_64.S:161 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:161) >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) ld.lld: error: undefined symbol: pa_tr_gdt >>> referenced by arch/x86/realmode/rm/trampoline_64.o:(tr_gdt) >>> referenced by reboot.S:28 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:28) >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) ld.lld: error: undefined symbol: pa_machine_real_restart_paging_off >>> referenced by reboot.S:34 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:34) >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) ld.lld: error: undefined symbol: pa_machine_real_restart_idt >>> referenced by reboot.S:47 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:47) >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) ld.lld: error: undefined symbol: pa_machine_real_restart_gdt >>> referenced by reboot.S:54 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:54) >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) >>> referenced by arch/x86/realmode/rm/reboot.o:(machine_real_restart_gdt) ld.lld: error: undefined symbol: pa_wakeup_gdt >>> referenced by arch/x86/realmode/rm/wakeup_asm.o:(wakeup_gdt) CC arch/x86/mm/numa_64.o CC arch/x86/mm/amdtopology.o HOSTCC arch/x86/entry/vdso/vdso2c make[4]: *** [arch/x86/realmode/rm/realmode.elf] Error 1 make[3]: *** [arch/x86/realmode/rm/realmode.bin] Error 2 make[2]: *** [arch/x86/realmode] Error 2 make[2]: *** Waiting for unfinished jobs.... Hopefully Arnaldo will have better luck. > > > > > > > > (FWIW: some other folks are hitting issues now with kernel's lack of > > > DWARF v5 support: https://bugzilla.redhat.com/show_bug.cgi?id=1922707) > > > -- > Thanks, > ~Nick Desaulniers ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 23:54 ` Andrii Nakryiko @ 2021-02-05 0:04 ` Nick Desaulniers 0 siblings, 0 replies; 7+ messages in thread From: Nick Desaulniers @ 2021-02-05 0:04 UTC (permalink / raw) To: Andrii Nakryiko Cc: Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Sedat Dilek, Nathan Chancellor, Clang-Built-Linux ML, Fangrui Song, bpf Moving a bunch of folks + lists to BCC. On Thu, Feb 4, 2021 at 3:54 PM Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote: > > On Wed, Feb 3, 2021 at 7:13 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > > > On Wed, Feb 3, 2021 at 6:58 PM Andrii Nakryiko > > <andrii.nakryiko@gmail.com> wrote: > > > > > > On Wed, Feb 3, 2021 at 5:31 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > > > > > > > On Sun, Jan 17, 2021 at 12:14 PM Arnaldo Carvalho de Melo > > > > <acme@kernel.org> wrote: > > > > > > > > > > Em Fri, Jan 15, 2021 at 03:43:06PM -0800, Yonghong Song escreveu: > > > > > > > > > > > > > > > > > > On 1/15/21 3:34 PM, Nick Desaulniers wrote: > > > > > > > On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@fb.com> wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 1/15/21 1:53 PM, Sedat Dilek wrote: > > > > > > > > > En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and > > > > > > > > > CONFIG_DEBUG_INFO_DWARF4. > > > > > > > > > So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination. > > > > > > > > > > > > > > Can you privately send me your configs that repro? Maybe I can isolate > > > > > > > it to a set of configs? > > > > > > > > > > > > > > > > > > > > > > > I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4. > > > > > > > > It is not there before and adding this may suddenly break some users. > > > > > > > > > > > > > > > > If certain combination of gcc/llvm does not work for > > > > > > > > CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community > > > > > > > > should fix. > > > > > > > > > > > > > > Is there a place I should report bugs? > > > > > > > > > > > > You can send bug report to Arnaldo Carvalho de Melo <acme@kernel.org>, > > > > > > dwarves@vger.kernel.org and bpf@vger.kernel.org. > > > > > > > > > > I'm coming back from vacation, will try to read the messages and see if > > > > > I can fix this. > > > > > > > > IDK about DWARF v4; that seems to work for me. I was previously observing > > > > https://bugzilla.redhat.com/show_bug.cgi?id=1922698 > > > > with DWARF v5. I just re-pulled the latest pahole, rebuilt, and no > > > > longer see that warning. > > > > > > > > I now observe a different set. I plan on attending "BPF office hours > > > > tomorrow morning," but if anyone wants a sneak peak of the errors and > > > > how to reproduce: > > > > https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 > > > > > > > > > > Is there another (easy) way to get your patch set without the b4 tool? > > > Is your patch set present in some patchworks instance, so that I can > > > download it in mbox format, for example? > > > > $ wget https://lore.kernel.org/lkml/20210130004401.2528717-2-ndesaulniers@google.com/raw > > -O - | git am > > $ wget https://lore.kernel.org/lkml/20210130004401.2528717-3-ndesaulniers@google.com/raw > > -O - | git am > > > > If you haven't tried b4 yet, it's quite nice. Hard to go back. Lore > > also has mbox.gz links. Not sure about patchwork. > > > > Ok, I managed to apply that on linux-next, but I can't get past this: > > ld.lld: error: undefined symbol: pa_trampoline_start > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) Thanks for testing and the report. Do you have a .config you can send me to reproduce? > > ld.lld: error: undefined symbol: pa_trampoline_header > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) > > ld.lld: error: undefined symbol: pa_trampoline_pgd > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) > >>> referenced by trampoline_64.S:142 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:142) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > > ld.lld: error: undefined symbol: pa_wakeup_start > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) > > ld.lld: error: undefined symbol: pa_wakeup_header > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) > > ld.lld: error: undefined symbol: pa_machine_real_restart_asm > >>> referenced by arch/x86/realmode/rm/header.o:(real_mode_header) > > ld.lld: error: undefined symbol: pa_startup_32 > >>> referenced by trampoline_64.S:77 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:77) > >>> arch/x86/realmode/rm/trampoline_64.o:(trampoline_start) > > ld.lld: error: undefined symbol: pa_tr_flags > >>> referenced by trampoline_64.S:124 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:124) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > > ld.lld: error: undefined symbol: pa_tr_cr4 > >>> referenced by trampoline_64.S:138 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:138) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > > ld.lld: error: undefined symbol: pa_tr_efer > >>> referenced by trampoline_64.S:146 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:146) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > >>> referenced by trampoline_64.S:147 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:147) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > > ld.lld: error: undefined symbol: pa_startup_64 > >>> referenced by trampoline_64.S:161 (/data/users/andriin/linux/arch/x86/realmode/rm/trampoline_64.S:161) > >>> arch/x86/realmode/rm/trampoline_64.o:(startup_32) > > ld.lld: error: undefined symbol: pa_tr_gdt > >>> referenced by arch/x86/realmode/rm/trampoline_64.o:(tr_gdt) > >>> referenced by reboot.S:28 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:28) > >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) > > ld.lld: error: undefined symbol: pa_machine_real_restart_paging_off > >>> referenced by reboot.S:34 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:34) > >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) > > ld.lld: error: undefined symbol: pa_machine_real_restart_idt > >>> referenced by reboot.S:47 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:47) > >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) > > ld.lld: error: undefined symbol: pa_machine_real_restart_gdt > >>> referenced by reboot.S:54 (/data/users/andriin/linux/arch/x86/realmode/rm/reboot.S:54) > >>> arch/x86/realmode/rm/reboot.o:(machine_real_restart_asm) > >>> referenced by arch/x86/realmode/rm/reboot.o:(machine_real_restart_gdt) > > ld.lld: error: undefined symbol: pa_wakeup_gdt > >>> referenced by arch/x86/realmode/rm/wakeup_asm.o:(wakeup_gdt) > CC arch/x86/mm/numa_64.o > CC arch/x86/mm/amdtopology.o > HOSTCC arch/x86/entry/vdso/vdso2c > make[4]: *** [arch/x86/realmode/rm/realmode.elf] Error 1 > make[3]: *** [arch/x86/realmode/rm/realmode.bin] Error 2 > make[2]: *** [arch/x86/realmode] Error 2 > make[2]: *** Waiting for unfinished jobs.... > > > Hopefully Arnaldo will have better luck. > > > > > > > > > > > > > > (FWIW: some other folks are hitting issues now with kernel's lack of > > > > DWARF v5 support: https://bugzilla.redhat.com/show_bug.cgi?id=1922707) > > > > > > -- > > Thanks, > > ~Nick Desaulniers -- Thanks, ~Nick Desaulniers ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 2:57 ` Andrii Nakryiko 2021-02-04 3:13 ` Nick Desaulniers @ 2021-02-04 8:42 ` Sedat Dilek 2021-02-04 8:59 ` Sedat Dilek 1 sibling, 1 reply; 7+ messages in thread From: Sedat Dilek @ 2021-02-04 8:42 UTC (permalink / raw) To: Andrii Nakryiko Cc: Nick Desaulniers, Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Thu, Feb 4, 2021 at 3:58 AM Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote: ... > > Is there another (easy) way to get your patch set without the b4 tool? > Is your patch set present in some patchworks instance, so that I can > download it in mbox format, for example? > Just to promote the b4 tool - we have some cool wiki in [1]. Personally, I got in touch with b4 when dealing with the ClangBuiltLinux project. Note: Sometimes it takes a bit for the patch(set) to be available from the LORE link. - Sedat - [1] https://github.com/ClangBuiltLinux/linux/wiki/Command-line-tips-and-tricks#fetching-a-single-patch-or-series-from-lkml ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 0/3] Kbuild: DWARF v5 support 2021-02-04 8:42 ` Sedat Dilek @ 2021-02-04 8:59 ` Sedat Dilek 0 siblings, 0 replies; 7+ messages in thread From: Sedat Dilek @ 2021-02-04 8:59 UTC (permalink / raw) To: Andrii Nakryiko Cc: Nick Desaulniers, Arnaldo Carvalho de Melo, Yonghong Song, Andrii Nakryiko, Jiri Olsa, Masahiro Yamada, Nathan Chancellor, Andrew Morton, LKML, Clang-Built-Linux ML, Linux Kbuild mailing list, linux-arch, Jakub Jelinek, Fangrui Song, Caroline Tice, Nick Clifton, dwarves, bpf On Thu, Feb 4, 2021 at 9:42 AM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > On Thu, Feb 4, 2021 at 3:58 AM Andrii Nakryiko > <andrii.nakryiko@gmail.com> wrote: > ... > > > > Is there another (easy) way to get your patch set without the b4 tool? > > Is your patch set present in some patchworks instance, so that I can > > download it in mbox format, for example? > > > > Just to promote the b4 tool - we have some cool wiki in [1]. > > Personally, I got in touch with b4 when dealing with the > ClangBuiltLinux project. > > Note: Sometimes it takes a bit for the patch(set) to be available from > the LORE link. > > - Sedat - > > [1] https://github.com/ClangBuiltLinux/linux/wiki/Command-line-tips-and-tricks#fetching-a-single-patch-or-series-from-lkml Honestly, when behind a proxy-server I did not find a trick to use b4 here (DNS resolution problems). I tried with proxychains-ng - NOPE. In the meantime I updated the CBL-wiki page and added v8 as an example :-). - Sedat - ^ permalink raw reply [flat|nested] 7+ messages in thread
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2021-02-04 1:31 ` [PATCH v5 0/3] Kbuild: DWARF v5 support Nick Desaulniers
2021-02-04 2:57 ` Andrii Nakryiko
2021-02-04 3:13 ` Nick Desaulniers
2021-02-04 23:54 ` Andrii Nakryiko
2021-02-05 0:04 ` Nick Desaulniers
2021-02-04 8:42 ` Sedat Dilek
2021-02-04 8:59 ` Sedat Dilek
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