Hello, i am trying to develop a GCC frontend using flex and bison as lexer/parser.
i've read several documentation (the list below and also the gccint.info) * https://github.com/rabishah/Mini-C-Compiler-using-Flex-And-Yacc/ * http://www.tldp.org/HOWTO/GCC-Frontend-HOWTO.html * https://gcc.gnu.org/wiki/WritingANewFrontEnd * https://gcc.gnu.org/ml/gcc-patches/2006-06/msg00648.html * https://gcc.gnu.org/wiki/FrontEnd/skeleton * http://blog.lxgcc.net/wp-content/uploads/2011/03/GCC_frontend.pdf * http://cobolforgcc.sourceforge.net/cobol_14.html#SEC96 * https://gcc.gnu.org/onlinedocs/gccint/Parsing-pass.html#Parsing-pass but still having some problems to make it work. the code is on github: https://github.com/danielneis/gcc-neis-frontend the project compiles and generates my compiler "neis1". it is a valid elf and i can run it with --help and it shows me the help. I am testing it with a simple .c file like this: int main() { return 0; } ~/bin$ ./gcc -x neis /home/neis/test.c /usr/lib/x86_64-linux-gnu/crt1.o: In function `_start': /home/aurel32/glibc/glibc-2.19/csu/../sysdeps/x86_64/start.S:118: undefined reference to `main' collect2: error: ld returned 1 exit status I think I may be missing some part of code generation with generic, but could not find any references... Any thoughts? Kind regards, Daniel
