http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54314
--- Comment #4 from gee <jojelino at gmail dot com> 2012-08-20 16:15:41 UTC ---
(In reply to comment #3)
> --export-all-symbols didn't work at all.
> pick-reverting just one commit failed with conflict.
>
>
> [966](sec 86)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000
> Contents of section .rdata$_ZNSt14numeric_limitsIdE14min_exponent10E:
> 0000 cdfeffff ....
>
> following is one of the symbol that linker failed to include in shared
> library.
>
> __ZNSt14numeric_limitsIdE14min_exponent10E
> .globl __ZNSt14numeric_limitsIdE14min_exponent10E
> .section .rdata$_ZNSt14numeric_limitsIdE14min_exponent10E,"dr"
> .align 4
> __ZNSt14numeric_limitsIdE14min_exponent10E:
> .long -307
objdump -p src/.libs/cygstdc++-6.dll |grep
"_ZNSt14numeric_limitsIdE14min_exponent10E"
[1747] _ZNSt14numeric_limitsIdE14min_exponent10E
85 .rdata$_ZNSt14numeric_limitsIdE14min_exponent10E 00000004 00000000
00000000 00004644 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
above symbol was defined in dll, sorry for the noise.
$ objdump -p src/.libs/cygstdc++-6.dll |grep
"_ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E"
209 .rdata$_ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E
00000040 00000000 00000000 0000bd14 2**5
CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA,
LINK_ONCE_SAME_SIZE (COMDAT
__ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E 966)
.globl
__ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E
.section
.rdata$_ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E,"dr"
.linkonce same_size
.align 32
__ZTCSt13basic_fstreamIwSt11char_traitsIwEE0_St14basic_iostreamIwS1_E:
.long 136
only difference for both section is RELOC, LINK_ONCE_SAME_SIZE. and some symbol
in section with reloc failed to export symbols within.
