Note
The Intel Debugger does not support position independent executable (pie).
On some systems the compiler option -fpie is set by default. Use -fno-pie to disable pie.
Debugging information is put into .o files by compilers. The level and format of information is controlled by compiler options.
With the Intel® C++ or Fortran Compiler, use the -g option. For example:
% icc -g hello.c … % icpc -g hello.cpp …
With the GNU* Compiler Collection, (GCC) use the -g option. On some older versions of GCC, this option might generate DWARF-1. If so, use the -gdwarf-2 option. For example:
% gcc -gdwarf-2 hello.c … % g++ -gdwarf-2 hello.cpp …
See your compiler's documentation for more details.
The debugging information is propagated into the a.out (executable) or .so (shared library) by the ld command.
If you are debugging optimized code, using -g automatically adds -O0.
See the Debugging Optimized Code section of this manual and the appropriate compiler documentation for information about -g and related extended debug options and their relationship to optimization.