[gentoo-embedded] configure: error: forced unwind support is required

[gentoo-embedded] configure: error: forced unwind support is required

[Chuck McKenzie]

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Hi all,
 
I'm new to Gentoo embedded and fairly new to Gentoo, so I apologize if I
am missing something obvious. I'm having trouble getting the crossdev
toolchain up and running with a current portage sync.  Could someone
please point me in the direction of fixing this?
 
Here's what I'm seeing:
 
buildhost ~ # crossdev -t i686-unknown-linux-gnu
------------------------------------------------------------------------
------------------------------------------------------------------------
--------------
 * Host Portage ARCH:     x86
 * Target Portage ARCH:   x86
 * Target System:         i686-unknown-linux-gnu
 * Stage:                 4 (C/C++ compiler)
 
 * binutils:              binutils-[latest]
 * gcc:                   gcc-[latest]
 * headers:               linux-headers-[latest]
 * libc:                  glibc-[latest]
 
 * PORTDIR_OVERLAY:       /usr/local/portage
 * PORT_LOGDIR:           /var/log/portage
 * PKGDIR:
/usr/portage/packages/cross/i686-unknown-linux-gnu
 * PORTAGE_TMPDIR:        /var/tmp/cross/i686-unknown-linux-gnu
  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -
_  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -
_  -  ~  -
 * Forcing the latest versions of binutils-config/gcc-config ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-binutils.log
 * Emerging cross-binutils ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-gcc-stage1.log
 * Emerging cross-gcc-stage1 ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-linux-headers.log
 * Emerging cross-linux-headers ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-glibc.log
 * Emerging cross-glibc ...
 
 * glibc failed :(

>From /var/log/portage/cross-i686-unknown-linux-gnu-glibc.log
 
<snip>
checking for forced unwind support... no
configure: error: forced unwind support is required
 
!!! ERROR: cross-i686-unknown-linux-gnu/glibc-2.5 failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_compile
  ebuild.sh, line 971:   Called qa_call 'src_compile'
  environment, line 4123:   Called src_compile
  glibc-2.5.ebuild, line 1119:   Called src_compile
  glibc-2.5.ebuild, line 1130:   Called toolchain-glibc_src_compile
  glibc-2.5.ebuild, line 240:   Called glibc_do_configure 'nptl'
  glibc-2.5.ebuild, line 900:   Called die
 
!!! failed to configure glibc
!!! If you need support, post the topmost build error, and the call
stack if relevant.
!!! A complete build log is located at
'/var/tmp/cross/i686-unknown-linux-gnu/portage/cross-i686-unknown-linux-
gnu/glibc-2.5/temp/build.log'.
 
!!! This ebuild is from an overlay: '/usr/local/portage'


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RE: [gentoo-embedded] configure: error: forced unwind support is required

[Andre Rhone]

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Try glibc-2.5-r1 and binutils 2.17.50.0.9. You may have to unmask them
first. Also, to protect your system from human error, you may want to do it
in a 32/64bit chrooted env.
http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1
<http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=2>
&chap=2
 
(e.g.) USE="-fortran" crossdev-stable --binutils 2.17.50.0.9 --gcc 4.1.2
--libc 2.5-r1 --kernel 2.6.19.2-r2 -t armv5te-softfloat-linux-gnueabi


  _____  

From: Chuck McKenzie [mailto:cmckenzie@tomotherapy.com] 
Sent: Wednesday, March 21, 2007 4:13 PM
To: gentoo-embedded@lists.gentoo.org
Subject: [gentoo-embedded] configure: error: forced unwind support is
required


 
Hi all,
 
I'm new to Gentoo embedded and fairly new to Gentoo, so I apologize if I am
missing something obvious. I'm having trouble getting the crossdev toolchain
up and running with a current portage sync.  Could someone please point me
in the direction of fixing this?
 
Here's what I'm seeing:
 
buildhost ~ # crossdev -t i686-unknown-linux-gnu
----------------------------------------------------------------------------
----------------------------------------------------------------------------
------
 * Host Portage ARCH:     x86
 * Target Portage ARCH:   x86
 * Target System:         i686-unknown-linux-gnu
 * Stage:                 4 (C/C++ compiler)
 
 * binutils:              binutils-[latest]
 * gcc:                   gcc-[latest]
 * headers:               linux-headers-[latest]
 * libc:                  glibc-[latest]
 
 * PORTDIR_OVERLAY:       /usr/local/portage
 * PORT_LOGDIR:           /var/log/portage
 * PKGDIR:                /usr/portage/packages/cross/i686-unknown-linux-gnu
 * PORTAGE_TMPDIR:        /var/tmp/cross/i686-unknown-linux-gnu
  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _
-  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~
-
 * Forcing the latest versions of binutils-config/gcc-config ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-binutils.log
 * Emerging cross-binutils ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-gcc-stage1.log
 * Emerging cross-gcc-stage1 ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-linux-headers.log
 * Emerging cross-linux-headers ...
[ ok ]
 * Log: /var/log/portage/cross-i686-unknown-linux-gnu-glibc.log
 * Emerging cross-glibc ...
 
 * glibc failed :(

>From /var/log/portage/cross-i686-unknown-linux-gnu-glibc.log
 
<snip>
checking for forced unwind support... no
configure: error: forced unwind support is required
 
!!! ERROR: cross-i686-unknown-linux-gnu/glibc-2.5 failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_compile
  ebuild.sh, line 971:   Called qa_call 'src_compile'
  environment, line 4123:   Called src_compile
  glibc-2.5.ebuild, line 1119:   Called src_compile
  glibc-2.5.ebuild, line 1130:   Called toolchain-glibc_src_compile
  glibc-2.5.ebuild, line 240:   Called glibc_do_configure 'nptl'
  glibc-2.5.ebuild, line 900:   Called die
 
!!! failed to configure glibc
!!! If you need support, post the topmost build error, and the call stack if
relevant.
!!! A complete build log is located at
'/var/tmp/cross/i686-unknown-linux-gnu/portage/cross-i686-unknown-linux-gnu/
glibc-2.5/temp/build.log'.
 
!!! This ebuild is from an overlay: '/usr/local/portage'


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Re: [gentoo-embedded] configure: error: forced unwind support is required

[Mike Frysinger]

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On Wednesday 21 March 2007, Chuck McKenzie wrote:
> checking for forced unwind support... no
> configure: error: forced unwind support is required
>
> !!! ERROR: cross-i686-unknown-linux-gnu/glibc-2.5 failed.

please try glibc-2.5-r1 ... if that fails in the same way, please file a 
bug ... i dropped some stuff from the glibc ebuild because it's supposed to 
be handled by patches which is related to this and so if it's breaking 
things, the patches need to be checked (the crap isnt going back into the 
ebuild)
-mike

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