It could be the new ABI, see
https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html.
Try compiling your code with _GLIBCXX_USE_CXX11_ABI=0.
On 04/23/2017 01:41 PM, Niels Bergsma wrote:
Hi all,
I've been trying to build simple C++ apps for the past few weeks on
OSV. I frequently receive "failed looking up symbol" errors and I
can't figure out how to solve them properly. Simple programs like
HelloWorld or variants which include simple shared library work
correctly, but more sophisticated libraries like leveldb, restbed
report errors at runtime. Even when I manual compile those libraries
and link the object files with my own code.
The error I receive look like:
|
OSv v0.24
eth0: 192.168.122.15
/tools/example.so: failed looking up symbol
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1EPKcRKS3_
(std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string(char const*, std::allocator<char>
const&))
[backtrace]
0x00000000003447cd <elf::object::symbol(unsigned int)+205>
0x0000000000346148 <elf::object::resolve_pltgot(unsigned int)+136>
0x0000000000346325 <elf_resolve_pltgot+69>
0x0000000000391e64 <???+3743332>
0x00000000004c12df <???+4985567>
0x000010000584cd54 <main+84>
0x0000000000421153 <osv::application::run_main(std::string, int,
char**)+371>
0x0000000000423220 <osv::application::run_main()+624>
0x000000000020ce43 <osv::application::main()+83>
0x0000000000423588 <???+4339080>
0x000000000044d465 <???+4510821>
0x00000000003f10c7 <thread_main_c+39>
0x00000000003931b5 <???+3748277>
|
My capstan file looks like is:
|
base: cloudius/osv-base
cmdline: /tools/example.so
build: make
files:
/tools/example.so: example.so
|
What am I doing wrong?
Thanks!
Niels
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