* stubs-x32.h missing ...
@ 2020-08-11 10:50 aotto
2020-08-11 11:08 ` Stefan Ring
2020-08-11 11:12 ` Jonathan Wakely
0 siblings, 2 replies; 6+ messages in thread
From: aotto @ 2020-08-11 10:50 UTC (permalink / raw)
To: opensuse-de; +Cc: gcc-help
Hi,
is something missing on opensuse ?
→ I mean the file: gnu/stubs-x32.h
Hi,
I use a 64bit cpu CPU E3-1275 V2 and cross-compile a 32bit software using :
g++-8 -m32
with the target :
i686-suse-linux-gnu
The configure setting the makefile variable :
target_cpu = i686
And than libtool is called with :
/bin/bash ../../libtool --tag=CC --mode=compile /usr/bin/ccache gcc-8
-m32 -DHAVE_CONFIG_H -I. -I/path/to/theLink/tclmsgque -I../.. -DNDEBUG
-DMQ_HAS_THREAD -shared -I/path/to/theLink/tclmsgque/../libmsgque
-I/path/to/ext/i686-suse-linux-gnu/release/include -DUSE_TCL_STUBS
-Wstrict-prototypes -Wconversion -Werror=maybe-uninitialized -Werror
-DMQ_IGNORE_EXTERN -fvisibility=hidden -O2 -Wall -Wcast-align -pthread
-MT tclmsgque_la-MqExceptionC_tcl.lo -MD -MP -MF
.deps/tclmsgque_la-MqExceptionC_tcl.Tpo -c -o
tclmsgque_la-MqExceptionC_tcl.lo `test -f 'MqExceptionC_tcl.c'
creating the libtool execute gcc call :
/bin/bash ../../libtool --tag=CC --mode=compile /usr/bin/ccache gcc-8
-m32 -DHAVE_CONFIG_H -I. -I/path/to/theLink/tclmsgque -I../.. -DNDEBUG
-DMQ_HAS_THREAD -shared -I/path/to/theLink/tclmsgque/../libmsgque
-I/path/to/ext/i686-suse-linux-gnu/release/include -DUSE_TCL_STUBS
-Wstrict-prototypes -Wconversion -Werror=maybe-uninitialized -Werror
-DMQ_IGNORE_EXTERN -fvisibility=hidden -O2 -Wall -Wcast-align -pthread
-MT tclmsgque_la-MqErrorC_tcl.lo -MD -MP -MF
.deps/tclmsgque_la-MqErrorC_tcl.Tpo -c -o tclmsgque_la-MqErrorC_tcl.lo
`test -f 'MqErrorC_tcl.c' || echo
'/home/dev1usr/Project/NHI1/theLink/tclmsgque/'`MqErrorC_tcl.c
PROBLEM: If I compare performance between 64 and 32 bit build executable
than I figure out that the 32bit is slower
-> the question is now… why?
possible answer:
1. libtool does not use the target_cpu
2. extensions available on 64bit cpu (like E3-1275 V2) are NOT used with
the 32bit build
this mean the cpu is not proper used
from gcc docu:
-m32: The -m32option sets |int|, |long|, and pointer types to 32
bits, and generates code that runs on any i386 system.
-mx32: The -mx32option sets |int|, |long|, and pointer types to 32
bits, and generates code for the x86-64 architecture.
testing ...
> gcc -mx32 test.c
In file included from /usr/include/features.h:447:0,
from /usr/include/bits/libc-header-start.h:33,
from /usr/include/stdio.h:27,
from test.c:1:
/usr/include/gnu/stubs.h:13:11: fatal error: gnu/stubs-x32.h: Datei oder
Verzeichnis nicht gefunden
# include <gnu/stubs-x32.h>
^~~~~~~~~~~~~~~~~
compilation terminated.
checking glibc: -> stubs-x32.h missing.
# rpm -ql glibc-devel-32bit
/usr/include/gnu
/usr/include/gnu/lib-names-32.h
/usr/include/gnu/stubs-32.h
/usr/lib/Mcrt1.o
/usr/lib/Scrt1.o
/usr/lib/crt1.o
/usr/lib/crti.o
/usr/lib/crtn.o
/usr/lib/gcrt1.o
/usr/lib/libBrokenLocale.so
/usr/lib/libanl.so
/usr/lib/libc.so
/usr/lib/libc_nonshared.a
/usr/lib/libcidn.so
/usr/lib/libcrypt.so
/usr/lib/libdl.so
/usr/lib/libg.a
/usr/lib/libieee.a
/usr/lib/libm.so
/usr/lib/libmcheck.a
/usr/lib/libnss_compat.so
/usr/lib/libnss_db.so
/usr/lib/libnss_dns.so
/usr/lib/libnss_files.so
/usr/lib/libnss_hesiod.so
/usr/lib/libowcrypt.so
/usr/lib/libpthread.so
/usr/lib/libpthread_nonshared.a
/usr/lib/libresolv.so
/usr/lib/librpcsvc.a
/usr/lib/librt.so
/usr/lib/libthread_db.so
/usr/lib/libutil.so
question: where get I the "stubs-x32.h" setup ?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: stubs-x32.h missing ...
2020-08-11 10:50 stubs-x32.h missing aotto
@ 2020-08-11 11:08 ` Stefan Ring
2020-08-11 11:12 ` Jonathan Wakely
1 sibling, 0 replies; 6+ messages in thread
From: Stefan Ring @ 2020-08-11 11:08 UTC (permalink / raw)
To: aotto; +Cc: opensuse-de, gcc-help
On Tue, Aug 11, 2020 at 12:50 PM aotto <aotto1968@t-online.de> wrote:
>
> Hi,
>
> is something missing on opensuse ?
>
> -mx32: The -mx32option sets |int|, |long|, and pointer types to 32
> bits, and generates code for the x86-64 architecture.
>
> testing ...
>
> gcc -mx32 test.c
> In file included from /usr/include/features.h:447:0,
> from /usr/include/bits/libc-header-start.h:33,
> from /usr/include/stdio.h:27,
> from test.c:1:
> /usr/include/gnu/stubs.h:13:11: fatal error: gnu/stubs-x32.h: Datei oder
> Verzeichnis nicht gefunden
> # include <gnu/stubs-x32.h>
> ^~~~~~~~~~~~~~~~~
> compilation terminated.
>
> checking glibc: -> stubs-x32.h missing.
>
>
> question: where get I the "stubs-x32.h" setup ?
It seems that x32 is pretty much dead, so I would not be surprised by
opensuse not carrying it.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: stubs-x32.h missing ...
2020-08-11 10:50 stubs-x32.h missing aotto
2020-08-11 11:08 ` Stefan Ring
@ 2020-08-11 11:12 ` Jonathan Wakely
2020-08-11 11:15 ` Jonathan Wakely
2020-08-11 11:22 ` aotto
1 sibling, 2 replies; 6+ messages in thread
From: Jonathan Wakely @ 2020-08-11 11:12 UTC (permalink / raw)
To: aotto; +Cc: opensuse-de, gcc-help
On Tue, 11 Aug 2020 at 11:51, aotto <aotto1968@t-online.de> wrote:
>
> Hi,
>
> is something missing on opensuse ?
>
> → I mean the file: gnu/stubs-x32.h
This is not a GCC question. That file belongs to glibc, so you should
ask somewhere more relevant to glibc or opensuse.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: stubs-x32.h missing ...
2020-08-11 11:12 ` Jonathan Wakely
@ 2020-08-11 11:15 ` Jonathan Wakely
2020-08-11 11:23 ` aotto
2020-08-11 11:22 ` aotto
1 sibling, 1 reply; 6+ messages in thread
From: Jonathan Wakely @ 2020-08-11 11:15 UTC (permalink / raw)
To: aotto; +Cc: gcc-help
Also, if you cross-post to a closed list like the opensuse one then
you prevent people (like me) from replying to your mail properly,
because my replies on the gcc-help list are rejected from the other
list. Please pick a relevant list and use that one. Your question is
about opensuse, it has nothing to do with GCC.
On Tue, 11 Aug 2020 at 12:12, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>
> On Tue, 11 Aug 2020 at 11:51, aotto <aotto1968@t-online.de> wrote:
> >
> > Hi,
> >
> > is something missing on opensuse ?
> >
> > → I mean the file: gnu/stubs-x32.h
>
> This is not a GCC question. That file belongs to glibc, so you should
> ask somewhere more relevant to glibc or opensuse.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: stubs-x32.h missing ...
2020-08-11 11:12 ` Jonathan Wakely
2020-08-11 11:15 ` Jonathan Wakely
@ 2020-08-11 11:22 ` aotto
1 sibling, 0 replies; 6+ messages in thread
From: aotto @ 2020-08-11 11:22 UTC (permalink / raw)
To: Jonathan Wakely; +Cc: gcc-help
On 11.08.20 13:12, Jonathan Wakely wrote:
> On Tue, 11 Aug 2020 at 11:51, aotto <aotto1968@t-online.de> wrote:
>> Hi,
>>
>> is something missing on opensuse ?
>>
>> → I mean the file: gnu/stubs-x32.h
> This is not a GCC question. That file belongs to glibc, so you should
> ask somewhere more relevant to glibc or opensuse.
you are right - someone already said that -mx32 seams to be a "dead-end"
but the original question is still open: can I use extra-switches to
speedup 32bit code on a 64bit cpu
I mean something not "-mx32"
thanks for answer.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: stubs-x32.h missing ...
2020-08-11 11:15 ` Jonathan Wakely
@ 2020-08-11 11:23 ` aotto
0 siblings, 0 replies; 6+ messages in thread
From: aotto @ 2020-08-11 11:23 UTC (permalink / raw)
To: Jonathan Wakely; +Cc: gcc-help
On 11.08.20 13:15, Jonathan Wakely wrote:
> Also, if you cross-post to a closed list like the opensuse one then
> you prevent people (like me) from replying to your mail properly,
> because my replies on the gcc-help list are rejected from the other
> list. Please pick a relevant list and use that one. Your question is
> about opensuse, it has nothing to do with GCC.
>
> On Tue, 11 Aug 2020 at 12:12, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>> On Tue, 11 Aug 2020 at 11:51, aotto <aotto1968@t-online.de> wrote:
>>> Hi,
>>>
>>> is something missing on opensuse ?
>>>
>>> → I mean the file: gnu/stubs-x32.h
>> This is not a GCC question. That file belongs to glibc, so you should
>> ask somewhere more relevant to glibc or opensuse.
ok, thanks - I don't recognizance this kind of problem - I'll not do
this again.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-08-11 11:23 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-11 10:50 stubs-x32.h missing aotto
2020-08-11 11:08 ` Stefan Ring
2020-08-11 11:12 ` Jonathan Wakely
2020-08-11 11:15 ` Jonathan Wakely
2020-08-11 11:23 ` aotto
2020-08-11 11:22 ` aotto
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