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Re: [PATCH/RFC] Re: linux-next: build failure after merge of the luto-misc tree

From Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups linux.kernel
Subject Re: [PATCH/RFC] Re: linux-next: build failure after merge of the luto-misc tree
Date 2016-07-20 02:00 +0200
Message-ID <rWN5D-26r-9@gated-at.bofh.it> (permalink)
References (7 earlier) <rWreN-54V-3@gated-at.bofh.it> <rWtTj-6Zc-3@gated-at.bofh.it> <rWCN1-47Q-35@gated-at.bofh.it> <rWHjz-6Zz-1@gated-at.bofh.it> <rWMCC-1Wj-29@gated-at.bofh.it>
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Hi Arnaldo,

On Wed, 20 Jul 2016 09:21:57 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> On Tue, 19 Jul 2016 14:45:51 -0300 Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> >
> > No such luck, everything works as expected, objtool doesn't even get
> > compiled, likely it doesn't support powerpc binaries so it isn't built:  
> 
> right.
> 
> > Probably it got the local definition of bitsperlong.h, i.e. the size on the host build
> > and then comparing it against the one for the target host...
> > 
> > Anyway, can you try the patch below to see what value is landing on __BITS_PER_LONG?
> > 
> > diff --git a/tools/include/asm-generic/bitsperlong.h b/tools/include/asm-generic/bitsperlong.h
> > index 45eca517efb3..c8f971e0d6a1 100644
> > --- a/tools/include/asm-generic/bitsperlong.h
> > +++ b/tools/include/asm-generic/bitsperlong.h
> > @@ -10,6 +10,9 @@
> >  #endif
> >  
> >  #if BITS_PER_LONG != __BITS_PER_LONG
> > +#include <linux/stringify.h>
> > +#pragma message "BITS_PER_LONG=" __stringify(BITS_PER_LONG)
> > +#pragma message "__BITS_PER_LONG=" __stringify(__BITS_PER_LONG)
> >  #error Inconsistent word size. Check asm/bitsperlong.h
> >  #endif  
> 
> I added those three lines to the file (just in yesterday's linux-next
> was easiest) and got this:
> 
> /home/sfr/next/next/tools/include/asm-generic/bitsperlong.h:14:9: note: #pragma message: BITS_PER_LONG=(8 * 8)
>  #pragma message "BITS_PER_LONG=" __stringify(BITS_PER_LONG)
>          ^
> /home/sfr/next/next/tools/include/asm-generic/bitsperlong.h:15:9: note: #pragma message: __BITS_PER_LONG=32
>  #pragma message "__BITS_PER_LONG=" __stringify(__BITS_PER_LONG)
>          ^
> 
> (a few times, of course)

So I applied this:

diff --git a/tools/arch/x86/include/uapi/asm/bitsperlong.h b/tools/arch/x86/include/uapi/asm/bitsperlong.h
index 6e23c543cd80..fd299f5468cb 100644
--- a/tools/arch/x86/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/x86/include/uapi/asm/bitsperlong.h
@@ -4,6 +4,12 @@
 #if defined(__x86_64__) && !defined(__ILP32__)
 # define __BITS_PER_LONG 64
 #else
+#ifndef __x86_64__
+#pragma message "__x86_64__ is not defined"
+#endif
+#ifdef __ILP32__
+#pragma message "__ILP32__ is defined"
+#endif
 # define __BITS_PER_LONG 32
 #endif

and got this:

/home/sfr/next/next/tools/arch/x86/include/uapi/asm/bitsperlong.h:8:9: note: #pragma message: __x86_64__ is not defined
 #pragma message "__x86_64__ is not defined"

-- 
Cheers,
Stephen Rothwell

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Thread

linux-next: build failure after merge of the luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-15 09:10 +0200
  Re: linux-next: build failure after merge of the luto-misc tree Peter Zijlstra <peterz@infradead.org> - 2016-07-15 09:30 +0200
    Re: linux-next: build failure after merge of the luto-misc tree Peter Zijlstra <peterz@infradead.org> - 2016-07-15 09:40 +0200
      Re: linux-next: build failure after merge of the luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-15 17:10 +0200
        Re: linux-next: build failure after merge of the luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-15 17:30 +0200
          Re: linux-next: build failure after merge of the luto-misc tree Peter Zijlstra <peterz@infradead.org> - 2016-07-15 17:30 +0200
            Re: linux-next: build failure after merge of the luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-15 18:00 +0200
          Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Peter Zijlstra <peterz@infradead.org> - 2016-07-15 17:50 +0200
            Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-15 18:30 +0200
              Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree "H. Peter Anvin" <hpa@zytor.com> - 2016-07-15 22:30 +0200
          [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-15 17:50 +0200
            Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-18 07:20 +0200
              Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Andy Lutomirski <luto@amacapital.net> - 2016-07-18 22:10 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-18 22:40 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-19 00:30 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-19 01:50 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-19 02:30 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-19 02:40 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-19 05:30 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-19 15:00 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-19 19:50 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-20 01:30 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-20 02:00 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Andy Lutomirski <luto@amacapital.net> - 2016-07-20 05:00 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@redhat.com> - 2016-07-20 05:10 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-20 05:20 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-20 05:00 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-21 01:40 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-21 15:20 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-22 01:30 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Josh Poimboeuf <jpoimboe@redhat.com> - 2016-07-22 05:50 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-22 16:40 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Josh Poimboeuf <jpoimboe@redhat.com> - 2016-07-22 21:20 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-22 21:40 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Josh Poimboeuf <jpoimboe@redhat.com> - 2016-07-22 21:50 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-22 22:00 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-23 07:10 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Andy Lutomirski <luto@amacapital.net> - 2016-07-24 20:50 +0200
                Re: [PATCH/RFC] Re: linux-next: build failure after merge of the  luto-misc tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-25 15:00 +0200
                [tip:perf/core] x86: Make the vdso2c compiler use the host  architecture headers tip-bot for Stephen Rothwell <tipbot@zytor.com> - 2016-07-25 20:20 +0200
                [tip:perf/core] tools build: Fix objtool build with ARCH=x86_64 tip-bot for Josh Poimboeuf <tipbot@zytor.com> - 2016-07-25 20:20 +0200
                [tip:perf/core] objtool: Always use host headers tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com> - 2016-07-25 20:20 +0200
    [tip:perf/core] tools: Simplify BITS_PER_LONG define tip-bot for Peter Zijlstra <tipbot@zytor.com> - 2016-07-16 22:50 +0200

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