class DummyClass { int a_; public: DummyClass(int a) : a_(a) {} int add(int b) { return a_ + b; } }; int f(int a, int b) { DummyClass c(a); return c.add(b); } int main() { return f(2, 3); } // Built with Clang 3.9 and GNU gold (GNU Binutils for Ubuntu 2.26) 1.11: // Note: llvm-symbolizer-zlib.test relies on the path and filename used ! // $ mkdir -p /tmp/dbginfo // $ cp dwarfdump-test-zlib.cc /tmp/dbginfo // $ cd /tmp/dbginfo // $ clang++ -g dwarfdump-test-zlib.cc -Wl,--compress-debug-sections=zlib -o dwarfdump-test-zlib.elf-x86-64 // $ clang++ -g dwarfdump-test-zlib.cc -Wl,--compress-debug-sections=zlib-gnu -o dwarfdump-test-zlibgnu.elf-x86-64 // llvm-readobj -sections can be used to see that outputs really contain the compressed sections, also output in both // cases is slightly smaller, that is because of compression.