Mail Archives: cygwin/2002/07/11/13:19:34
Christopher Faylor wrote:
> On Thu, Jul 11, 2002 at 03:21:41AM -0400, Charles Wilson wrote:
>
>>Okay, there's just one thing I forgot to mention last time: there still
>>is no mingw libstdc++(-2).a for gcc-2.95.3-8 (of course, 2.95.3-5 didn't
>>have one either, so this is no big deal. However, since you're
>>providing the mingw/g++-3 headers ...
>>
>
> I wasn't really planning on providing this. The goal is to switch to v3,
> really. The only reason I provided the headers was to allow g++ to work
> the same with -mno-cygwin as it did before.
>
Right. The thought occurred to me that perhaps the addition of
mingw/include/g++-3 files is incomplete: either it shouldn't be done at
all, or should be accompanied by the library.
However, doing a diff on my cross-compiler g++-3 files and yours, gives
me only _G_config.h -- but yours is identical to mine in
/opt/mingw/i686-pc-mingw32/...
So, the headers you provided were identical to the ones I was using
before -- but your spec file now searches for "libstdc++-2.a". fine, I
copied my libstdc++.a to there: but still get link
errors...understandable if the ABI changed, but it hasn't. So I'm
confused, but it seems as tho one cannot get g++-2 -mno-cygwin from
2.95.3-8 to work even after taking the steps that previously were
sufficient to get g++ -mno-cygwin from 2.95.3-5 to work.
>>/usr/lib/libstdc++.a.2.1.0 ?? what is this file?
>>
>
> It's been around for some time. It's the libstdc++.a library for gcc
> 2.95.3 + libstdc++.
Okay -- I remember it from 2.95.3-5, but I thought it was removed in
2.95.3-7. It doesn't cause any problems either way; it's never used.
>>gcc-2 works
>>gcc-2 -mno-cygwin works
>>
>>g++-2 works
>>g++-2 -mno-cygwin links against the
>>/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libstdc++-2.a
>>(oh yeah -- there is no mingw libstdc++ for this release.
>>I copied my mingw libstdc++.a to libstdc++-2.a, and then got *different*
>>errors)
>>see below. Shouldn't be a mangling issue; it was build with 2.95.3-5.
>>
>
> Are you sure this is being used, though?
>
Yes, I verified by using g++ --verbose, and then copying the
collect2.exe line by hand, and adding --verbose to THAT-- which should
that YES, it was linking to my /usr/lib/mingw/libstdc++-2.a library
(which was a copy of libstdc++.a yadda yadda yadda)
I duplicated this below...
>>g77-2 breaks:
>>/usr/lib/libcygwin.a(libcmain.o)(.text+0x81): undefined reference to
>>`WinMain AT 16'
>>g77-2 -mno-cygwin breaks:
>>/usr/lib/mingw/libmingw32.a(main.o)(.text+0x8d):main.c: undefined reference
>>to `WinMain AT 16'
>>
>
> Strange. I didn't touch g77 at all.
Weird.
>
>>Note the g++-2 IS finding my custom libstdc++-2.a (which is a
>>copy of a libstdc++.a that worked just fine with gcc-2.95.3-5).
>>
>>mg++-2 -o usedll.exe -g usedll.o -L./ -lcxxdll
>>usedll.o: In function `main':
>>
>
> Can you add a -v here, just to verify what library is being used?
I did, but I redid that and copied the results below...
--Chuck
$ ./mg++-2 -o usedll.exe -g usedll.o -L./ -lcxxdll -v
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/specs
gcc version 2.95.3-8 (cygwin special)
/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/collect2.exe -Bdynamic -o
usedll.exe /usr/lib/mingw/crt2.o -L./ -L/usr/lib/mingw -L/usr/lib/w32api
-L/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8 usedll.o -lcxxdll -lstdc++-2
-lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt -lmingw32 -luser32
-lkernel32 -ladvapi32 -lshell32 -lmingw32 -lgcc -lmoldname -lmingwex
-lmsvcrt
---- above will result in the same errors posted previously. -----
---- so, try again by calling ld directly ----
$ ld -Bdynamic -o usedll.exe /usr/lib/mingw/crt2.o -L./ -L/usr/lib/mingw
-L/usr/lib/w32api -L/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8 usedll.o
-lcxxdll -lstdc++-2 -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt
-lmingw32 -luser32 -lkernel32 -ladvapi32 -lshell32 -lmingw32 -lgcc
-lmoldname -lmingwex -lmsvcrt --verbose
GNU ld version 2.12.90 20020706
Supported emulations:
i386pe
using internal linker script:
==================================================
/* Default linker script, for normal executables */
OUTPUT_FORMAT(pei-i386)
SEARCH_DIR("/usr/i686-pc-cygwin/lib"); SEARCH_DIR("/usr/lib");
SEARCH_DIR("/usr/lib/w32api");
ENTRY(_mainCRTStartup)
SECTIONS
{
.text __image_base__ + __section_alignment__ :
{
*(.init)
*(.text)
*(SORT(.text$*))
*(.glue_7t)
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___CTOR_LIST__ = .; __CTOR_LIST__ = . ;
LONG (-1); *(SORT(.ctors.*)); *(.ctors); *(.ctor); LONG (0);
___DTOR_LIST__ = .; __DTOR_LIST__ = . ;
LONG (-1); *(SORT(.dtors.*)); *(.dtors); *(.dtor); LONG (0);
*(.fini)
/* ??? Why is .gcc_exc here? */
*(.gcc_exc)
etext = .;
*(.gcc_except_table)
}
/* The Cygwin32 library uses a section to avoid copying certain data
on fork. This used to be named ".data". The linker used
to include this between __data_start__ and __data_end__, but that
breaks building the cygwin32 dll. Instead, we name the section
".data_cygwin_nocopy" and explictly include it after __data_end__. */
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*(.data_cygwin_nocopy)
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*(.eh_frame)
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.pdata BLOCK(__section_alignment__) :
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*(.debug$S)
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*(.debug$F)
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.idata BLOCK(__section_alignment__) :
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/* This cannot currently be handled with grouped sections.
See pe.em:sort_sections. */
SORT(*)(.idata$2)
SORT(*)(.idata$3)
/* These zeroes mark the end of the import list. */
LONG (0); LONG (0); LONG (0); LONG (0); LONG (0);
SORT(*)(.idata$4)
SORT(*)(.idata$5)
SORT(*)(.idata$6)
SORT(*)(.idata$7)
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end = .;
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.stab BLOCK(__section_alignment__) (NOLOAD) :
{
[ .stab ]
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.stabstr BLOCK(__section_alignment__) (NOLOAD) :
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[ .stabstr ]
}
}
==================================================
attempt to open /usr/lib/mingw/crt2.o succeeded
/usr/lib/mingw/crt2.o
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usedll.o
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(.//libcxxdll.dll.a)d000002.o
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(/usr/lib/mingw/libmingw32.a)CRTglob.o
(/usr/lib/mingw/libmingw32.a)CRTfmode.o
(/usr/lib/mingw/libmingw32.a)CRT_fp10.o
(/usr/lib/mingw/libmingw32.a)gccmain.o
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(/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libgcc.a)_eh.o
(/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libgcc.a)_ctors.o
(/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libgcc.a)frame.o
(/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libgcc.a)_chkstk.o
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(/usr/lib/mingw/libmsvcrt.a)ds00222.o
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(/usr/lib/mingw/libmsvcrt.a)ds00336.o
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(/usr/lib/mingw/libmsvcrt.a)ds00373.o
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(/usr/lib/mingw/libmsvcrt.a)ds00603.o
(/usr/lib/mingw/libmsvcrt.a)ds00642.o
(/usr/lib/mingw/libmsvcrt.a)ds00510.o
(/usr/lib/mingw/libmsvcrt.a)dh.o
(/usr/lib/mingw/libmsvcrt.a)dt.o
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(/usr/lib/w32api/libkernel32.a)ds00643.o
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(/usr/lib/w32api/libkernel32.a)dh.o
(/usr/lib/w32api/libkernel32.a)dt.o
attempt to open .//libadvapi32.dll.a failed
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attempt to open /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-8/libgcc.a succeeded
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attempt to open /usedll.o: In function `main':
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `endl(ostream &)'
usedll.o:/tmp/gcc-tests/cxx/usedll.cc:21: more undefined references to
`endl(ostream &)' follow
usedll.o: In function `main':
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to `cout'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:21: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to `endl(ostream &)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to `cout'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(int)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(char const *)'
/tmp/gcc-tests/cxx/usedll.cc:29: undefined reference to
`ostream::operator<<(int)'
usr/lib/mingw/libmingwex.dll.a failed
attempt to open /usr/lib/mingw/mingwex.dll.a failed
attempt to open /usr/lib/mingw/libmingwex.a succeeded
attempt to open .//libmsvcrt.dll.a failed
attempt to open .//msvcrt.dll.a failed
attempt to open .//libmsvcrt.a failed
attempt to open .//libmsvcrt.dll failed
attempt to open .//msvcrt.dll failed
attempt to open .//libmsvcrt.a failed
attempt to open /usr/lib/mingw/libmsvcrt.dll.a failed
attempt to open /usr/lib/mingw/msvcrt.dll.a failed
attempt to open /usr/lib/mingw/libmsvcrt.a succeeded
Info: resolving __8DllClass$instances by linking to
__imp___8DllClass$instances (auto-import)
Info: resolving _global_dllclass2 by linking to __imp__global_dllclass2
(auto-import)
Info: resolving _global_dllclass1 by linking to __imp__global_dllclass1
(auto-import)
Info: resolving _global_int_variable by linking to
__imp__global_int_variable (auto-import)
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