https://sourceware.org/bugzilla/show_bug.cgi?id=30069
Bug ID: 30069
Summary: objdump (*-w64-mingw32) does not support the output of
c++ symbol names for dynamic libraries
Product: binutils
Version: 2.39
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: ralf.habacker at freenet dot de
Target Milestone: ---
Dynamic libraries generated for windows by i686-w64-mingw32-g++ may provide c++
symbols or refer to c++ symbols from other dynamic libraries.
When running `i686-w64-mingw32-objdump -x -C gnu-v3` on such a dynamic library
does not print out the demangled symbol name.
How to reproduce:
1. downloaded appended dll.a
2. run
i686-w64-mingw32-objdump -x --demangle=gnu-v3 libgmpxx-4.dll | gawk '$3 ~
/basic_string/ { print $3}'
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_disposeEv
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_replaceEjjPKcj
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_appendEPKcj
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_mutateEjjPKcj
_Z24__gmp_istream_set_digitsRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERSiRcRbi
The referenced symbols are valid c++ symbols as shown below:
i686-w64-mingw32-objdump -x --demangle=gnu-v3 libgmpxx-4.dll | gawk '$3 ~
/basic_string/ { print $3}' | c++filt
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>::_M_dispose()
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>::_M_replace(unsigned int, unsigned int, char const*, unsigned int)
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>::_M_append(char const*, unsigned int)
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>::_M_mutate(unsigned int, unsigned int, char const*, unsigned int)
__gmp_istream_set_digits(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >&, std::basic_istream<char,
std::char_traits<char> >&, char&, bool&, int)
It would be nice if objdump could output the symbols demangled if desired.
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