Sender: =?UTF-8?Q?Timo_Ter=C3=A4s?= <timo.teras@gmail.com>
Date: Mon, 30 Jan 2017 13:21:56 +0200
From: Timo Teras <timo.teras@iki.fi>
To: "Tuan M. Hoang" <tmhoang@flatglobe.org>
Cc: "alpine-devel" <alpine-devel@lists.alpinelinux.org>
Subject: Re: [alpine-devel] Porting Alpine scripts
Message-ID: <20170130132156.1ce001a8@vostro.util.wtbts.net>
In-Reply-To: <20170128200029.271b0fcf.tmhoang@flatglobe.org>
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	<20161116023639.23b44cf1.tmhoang@flatglobe.org>
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	<20161121073927.2d0a9e65.tmhoang@flatglobe.org>
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On Sat, 28 Jan 2017 20:00:29 -0500
"Tuan M. Hoang" <tmhoang@flatglobe.org> wrote:

> On Fri, 27 Jan 2017 09:00:54 +0200
> Timo Teras <timo.teras@iki.fi> wrote:
> > 
> > If fakeroot segfaults you'll end up in trouble sooner or later. It'd
> > be good to fix that. Do you have strace or gdb backtrace of the
> > crash?   
> 
> Cross-compiling strace and gdb requires 'linux-headers'
> installed in $CBUILDROOT. strace is cool but gdb still fails

Should fix strace APKBUILD to support cross-compilation using the
makedepends_host as used in other cross-compile enabled packages.

> for me with following errors :
> 
> In file included from gregset.h:26:0,
>                  from s390-linux-nat.c:28:
> nm.h:23:24: error: 'elf_gregset_t' does not name a type
>  #define GDB_GREGSET_T  elf_gregset_t
>                         ^
> gregset.h:36:9: note: in expansion of macro 'GDB_GREGSET_T'
>  typedef GDB_GREGSET_T gdb_gregset_t;
>          ^~~~~~~~~~~~~
> nm.h:24:24: error: 'elf_fpregset_t' does not name a type
>  #define GDB_FPREGSET_T elf_fpregset_t
>                         ^
> gregset.h:37:9: note: in expansion of macro 'GDB_FPREGSET_T'
>  typedef GDB_FPREGSET_T gdb_fpregset_t;
>          ^~~~~~~~~~~~~~
> In file included from s390-linux-nat.c:28:0:
> gregset.h:52:14: error: 'gdb_gregset_t' does not name a type
>         const gdb_gregset_t *gregs);
>               ^~~~~~~~~~~~~
> gregset.h:54:15: error: 'gdb_fpregset_t' does not name a type
>          const gdb_fpregset_t *fpregs);
>                ^~~~~~~~~~~~~~
> gregset.h:61:6: error: 'gdb_gregset_t' has not been declared
>       gdb_gregset_t *gregs, int regno);
>       ^~~~~~~~~~~~~
> gregset.h:63:7: error: 'gdb_fpregset_t' has not been declared
>        gdb_fpregset_t *fpregs, int regno);
>        ^~~~~~~~~~~~~~
> 
> elf_gregset_t and elf_fpregset_t were supposed to be defined in
> https://github.com/torvalds/linux/blob/master/arch/s390/include/asm/elf.h
> and I think it should be built in 'linux-headers', but no trace of
> them.

Strange. Sounds like a bug somewhere.

> Here is the log of strace fakeroot : http://pastebin.com/Pn7YUWRz

Could you retry with "strace -f -s 1024" ?

> > > 2. I was having an error when building linux-vanilla-dev ( with
> > > above kernel config ). When running $ make in dev() in APKBUILD,
> > > HOSTCC compiles some scripts in "$srcdir"/linux-$_kernver/scripts
> > > directory into host arch (x86_64) object/exec files. These files
> > > were later get copied into
> > > "$subpkgdir"/usr/src/linux-headers-${_abi_release}
> > > (aports/main/linux-vanilla/pkg/linux-vanilla-dev/usr/src/linux-headers-4.4.34).
> > > Then libc.musl-x86_64.so.1 comes up in as a needed .so file in
> > > later steps (scan_shared_objects() function). This happens for
> > > linux-vanilla-dev package, while bootstraping both aarch64, and
> > > s390x using aports master.  
> > 
> > This is tricky. Should the -dev package be built for the target or
> > for the build host. When cross-compiling it should probably be
> > built for the build host. Because it will probably be used to build
> > the modules too. Maybe the following change in linux-vanilla will
> > fix it: -subpackages="$pkgname-dev"
> > +subpackages="$pkgname-dev::$CBUILD_ARCH"
> >   
> This indeed fixes it and makes linux-vanilla-dev a HOST's package.

Ok, I'll probably commit that to the relevant kernel packages then.

Thanks.


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