search for: camlruntime__rt_puts_198

...c to ocamlopt: ocamlopt -cc g++ -ccopt -rdynamic -linkall $(LIBFILES) -o alpha $(OBJFILES) I've also tried writing a dummy "puts" function in a C file and linking that with my executable. nm -D then shows the following: 000000000054b690 T camlRuntime__rt_fputs_208 000000000054b590 T camlRuntime__rt_puts_198 U fputs 0000000000c43044 T puts However, LLVM *still* gives me: LLVM ERROR: Tried to execute an unknown external function: i32 (i8*)* puts Something really wrong is happening. The following thread seems to indicate that this should all work easily: http://old.nabble.com/jit-with-...

I tried running nm - D | grep "puts" on the binary compiled by the OCaml compiler. It outputs the following: 08161b00 T camlRuntime__rt_fputs_208 08161a20 T camlRuntime__rt_puts_198 U fputs I'm assuming this means that fputs is linked dynamically, and puts is not. I tried modifying my code to use fputs instead of puts instead, but had no success, however, I still get: LLVM ERROR: Tried to execute an unknown external function: i32 (i8*, i32)* fputs There has...

...g++ -ccopt -rdynamic -linkall $(LIBFILES) -o alpha $(OBJFILES) > > I've also tried writing a dummy "puts" function in a C file and linking that > with my executable. nm -D then shows the following: > > 000000000054b690 T camlRuntime__rt_fputs_208 > 000000000054b590 T camlRuntime__rt_puts_198 >                 U fputs > 0000000000c43044 T puts > > However, LLVM *still* gives me: > LLVM ERROR: Tried to execute an unknown external function: i32 (i8*)* puts > > Something really wrong is happening. The following thread seems to indicate > that this should all work ea...

On Sun, Apr 4, 2010 at 5:24 PM, Maxime Chevalier-Boisvert <mcheva at cs.mcgill.ca> wrote: > I tried running nm - D | grep "puts" on the binary compiled by the OCaml > compiler. It outputs the following: > > 08161b00 T camlRuntime__rt_fputs_208 > 08161a20 T camlRuntime__rt_puts_198 >        U fputs > > I'm assuming this means that fputs is linked dynamically, and puts is not. Don't assume; ask `man nm`. http://www.linuxcommand.org/man_pages/nm1.html says that a 'U' in that column means "The symbol is undefined." (It's there so the dynam...

In C, on Linux, you would have to link your JIT compiler with -rdynamic or -Wl,-export-dynamic (they're synonyms). I'm not sure what the equivalent linker flag is for OCaml. You can see what symbols are available to the JIT with `nm -D`. On Sun, Apr 4, 2010 at 8:41 AM, Nyx <mcheva at cs.mcgill.ca> wrote: > > I'm coding a JIT compiler for C source in OCaml, using LLVM.

I'm coding a JIT compiler for C source in OCaml, using LLVM. I'm pretty much done with the LLVM code generation. The problem is that I can't seem to call C library functions. I was told that all I needed to do to be able to link with libc functions was to declare them in my module and give them external linkage, but this does not seem to work. Please note that this is a JIT compiler. I