Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.6k views
in Technique[技术] by (71.8m points)

c++ - llinking @_Znam and @_Znwm

I'm new to c++ programming and currently working on an llvm front-end development project. When I link the object files created by llc, my linker cannot locate the following functions. I know that these are standard c++ library functions but using -lstdc++ doesn't work. Now my question is that where are these functions defined and how can I link them with my object files, and actually what do they do?

declare noalias i8* @_Znam(i64)

declare noalias i8* @_Znwm(i64)
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

These functions are standard C++ library functions, in particular, operator new[](unsigned long) and operator new(unsigned long). They should be provided by your C++ runtime library. Depending on which compiler you're using this will be libsupc++ or libc++abi or libcxxrt.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...