lld

问题 My cpp code: int main(int argc, char** argv) {} I use the following command to compile and link it: // I want to read the result ir clang -S -emit-llvm main.cpp // I want to compile directly from ir llc -filetype=obj main.ll lld -flavor link main.obj // <root>: undefined symbol: mainCRTStartup Link failed Did I miss something? 回答1: mainCRTStartup is a function defined by the CRT (which clang is probably implicitly using in the first step, and generates an IR file with mainCRTStartup as the

问题 My cpp code: int main(int argc, char** argv) {} I use the following command to compile and link it: // I want to read the result ir clang -S -emit-llvm main.cpp // I want to compile directly from ir llc -filetype=obj main.ll lld -flavor link main.obj // <root>: undefined symbol: mainCRTStartup Link failed Did I miss something? 回答1: mainCRTStartup is a function defined by the CRT (which clang is probably implicitly using in the first step, and generates an IR file with mainCRTStartup as the

问题 I have downloaded and installed clang on windows 10 from http://releases.llvm.org/download.html and mingw from https://sourceforge.net/projects/mingw-w64/ I am trying to compile a very basic C program using clang/lld/mingw: int main(int argc, char* argv[argc + 1]) { return 0; } To compile I invoke: clang.exe -target x86_64-windows-gnu -fuse-ld=lld.exe -g -gcodeview -Wl,/debug,/pdb:example.pdb example.c -o example.exe This creates an exe which faults on startup in mainCRTStartup (__security

问题 I am working on cross compiling an experimental GNU free Linux toolchain using clang (instead of gcc ), compiler-rt (instead of libgcc ), libunwind (available at http://llvm.org/git/libunwind.git) (instead of libgcc_s ), lld (instead of GNU ld ), libcxx (instead of libstdc++ ), libcxxabi (instead of not sure, I'm unclear on the GNU distinction between libstdc++ and its ABI) and musl (instead of glibc ). Using a musl based gcc cross compiler and a few patches I've managed to successfully