cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

[Lakhsa]

G'Day,

after having updated my cygwin64 installation (Win7-64) for OpenSSL
development I have encountered 2 problems:

  * compiling for 32-bit with '-m32 -i686' now fails with internal
    compiler error: in extract_insn, at recog.c:2154
  * cygcheck -p [any_binary] produces a seg fault

Both used to work until last update of the cygwin64-only setup end of
June 2014 from FTP server at Uni Erlangen.Both problems seem to have
occurred in the past and seem to have been fixed in due course, so I
wonder how they could crop up again.

I've installed a completely fresh copy of cygwin64 (using
cygwin_setup-x86_64_2.850.exe) and also a new copy of cygwin32 (using
setup-x86_2.850.exe) via FTP. The cygwin64 gcc is 4.8.3-2 whereas the
cygwin32 version is 4.3.8-1, but the 32-bit problem for the cygwin64 gcc
version persists.

Any idea what could be the cause of this and how to track it down viz.
correct it would be enormously appreciated.

Thanx for your attention,

--
Lakhsa


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Re: cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

[JonY]

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On 7/6/2014 04:15, Lakhsa wrote:
> G'Day,
> 
> after having updated my cygwin64 installation (Win7-64) for OpenSSL
> development I have encountered 2 problems:
> 
>   * compiling for 32-bit with '-m32 -i686' now fails with internal
>     compiler error: in extract_insn, at recog.c:2154
>   * cygcheck -p [any_binary] produces a seg fault
> 
> Both used to work until last update of the cygwin64-only setup end of
> June 2014 from FTP server at Uni Erlangen.

Really? cygwin gcc has never been built with multilib support, I don't
know how it is possible that "it used to work".




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Re: cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

[Lakhsa]

After some extended research and trials with a fresh OpenSSL master
clone openssl32_trial this seems to be a problem of the cygwin ports of GCC.
I've added some information about this - maybe one of the developers
listening in on the OpenSSL project could have a closer look.

Wrt OpenSSL development this is not a serious problem, merely annoying
as this requires separate 32-bit and 64-bit cygwin installations to
maintain.
The 'cygcheck -p' seg fault is also not serious, merely similarly
annoying as the 32-bit installation is required to find out which
package contains a specific binary.

Any useful advice will be greatly appreciated to get away from having to
maintain two separate development environments again.

Cheers Lakhsa

P.S.: Trial for the interested: OpenSSL build configs 'Cygwin' and
'debug-Cygwin' with gcc options '-m32 -march=i686' to build 32-bit code.

Problem is present in the cygwin64 packages for gcc-core 4.8.3-2 as well
as gcc-core 4.8.2-3. Error occurs very early in the build process when
building crypto/objects:

make[2]: Entering directory
'/cygdrive/d/dev/openssl/openssl32_trial/crypto/objects'
gcc [...] -c -o obj_dat.o obj_dat.c
obj_dat.c: In function ‘OBJ_create_objects’:
obj_dat.c:781:2: error: unrecognizable insn:
}
^
(insn 30 29 31 6 (set (reg/f:SI 122)
(symbol_ref:SI ("__ctype_ptr__") [flags 0x440] <var_decl 0x6ffffd28630
__ctype_ptr__>)) obj_dat.c:747 -1
(nil))
obj_dat.c:781:2: internal compiler error: in extract_insn, at recog.c:2154

This problem crops up on a regular basis in the gcc.gnu.org bug tracker,
e.g. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57099. It is not
present in cygwin64 package gcc-core-4.9.0-1, but that version results
in a linker error very late in the build process when compiling/linking
apps code. That's may be due to inconsistent/incomplete installation, so
another problem.

/usr/bin/ld: cannot find -lgcc_s
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-pc-cygwin/4.9.0//libgcc.a when searching for -lgcc
/usr/bin/ld: cannot find -lgcc
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-pc-cygwin/4.9.0/../../../libcygwin.a when searching
for -lcygwin
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-pc-cygwin/4.9.0/../../../libcygwin.a when searching
for -lcygwin
/usr/bin/ld: cannot find -lcygwin
/usr/bin/ld: cannot find -ladvapi32
/usr/bin/ld: cannot find -lshell32
/usr/bin/ld: cannot find -luser32
/usr/bin/ld: cannot find -lkernel32
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-pc-cygwin/4.9.0//libgcc_s.dll.a when searching for
-lgcc_s
/usr/bin/ld: cannot find -lgcc_s
/usr/bin/ld: cannot find -lgcc
collect2: error: ld returned 1 exit status

On 05/07/2014 22:15, Lakhsa wrote:
> G'Day,
>
> after having updated my cygwin64 installation (Win7-64) for OpenSSL
> development I have encountered 2 problems:
>
>   * compiling for 32-bit with '-m32 -i686' now fails with internal
>     compiler error: in extract_insn, at recog.c:2154
>   * cygcheck -p [any_binary] produces a seg fault
>
> Both used to work until last update of the cygwin64-only setup end of
> June 2014 from FTP server at Uni Erlangen.Both problems seem to have
> occurred in the past and seem to have been fixed in due course, so I
> wonder how they could crop up again.
>
> I've installed a completely fresh copy of cygwin64 (using
> cygwin_setup-x86_64_2.850.exe) and also a new copy of cygwin32 (using
> setup-x86_2.850.exe) via FTP. The cygwin64 gcc is 4.8.3-2 whereas the
> cygwin32 version is 4.3.8-1, but the 32-bit problem for the cygwin64 gcc
> version persists.
>
> Any idea what could be the cause of this and how to track it down viz.
> correct it would be enormously appreciated.
>
> Thanx for your attention,
>
> --
> Lakhsa
>
>
> --
> Problem reports:       http://cygwin.com/problems.html
> FAQ:                   http://cygwin.com/faq/
> Documentation:         http://cygwin.com/docs.html
> Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
>
>
>


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Re: cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

[JonY]

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On 7/6/2014 19:04, Lakhsa wrote:
> After some extended research and trials with a fresh OpenSSL master
> clone openssl32_trial this seems to be a problem of the cygwin ports of GCC.
> I've added some information about this - maybe one of the developers
> listening in on the OpenSSL project could have a closer look.
> 

cygwin gcc has never been built with multilib support, I don't
know how it is possible that "it used to work".



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Re: cygwin64 problems after update: gcc 4.8.3-2, cygcheck -p

[Agner Fog]

On 7/6/2014 04:15, Lakhsa wrote:
> G'Day,
>
> after having updated my cygwin64 installation (Win7-64) for OpenSSL
> development I have encountered 2 problems:
>
>   * compiling for 32-bit with '-m32 -i686' now fails with internal
>     compiler error: in extract_insn, at recog.c:2154
>   * cygcheck -p [any_binary] produces a seg fault

JonY wrote:

> cygwin gcc has never been built with multilib support

I also get weird error messages when compiling with option -m32

> internal compiler error: in extract_insn, at recog.c:2154
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.

There should be an informative error message when trying to compile with
option -m32 under Cygwin64 rather than a request for a bug report.

Or better, of course, support for compiling for both 32 and 64 bits from the same prompt :)




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