/* * Simple Test program for libtcc * * libtcc can be useful to use tcc as a "backend" for a code generator. */ #include <stdlib.h> #include <stdio.h> #include "libtcc.h" /* this function is called by the generated code */ int add(int a, int b) { return a + b; } char my_program[] = "int fib(int n)\n" "{\n" " if (n <= 2)\n" " return 1;\n" " else\n" " return fib(n-1) + fib(n-2);\n" "}\n" "\n" "int foo(int n)\n" "{\n" " printf(\"Hello World!\\n\");\n" " printf(\"fib(%d) = %d\\n\", n, fib(n));\n" " printf(\"add(%d, %d) = %d\\n\", n, 2 * n, add(n, 2 * n));\n" " return 0;\n" "}\n"; int main(int argc, char **argv) { TCCState *s; int (*func)(int); unsigned long val; s = tcc_new(); if (!s) { fprintf(stderr, "Could not create tcc state\n"); exit(1); } /* MUST BE CALLED before any compilation or file loading */ tcc_set_output_type(s, TCC_OUTPUT_MEMORY); tcc_compile_string(s, my_program); /* as a test, we add a symbol that the compiled program can be linked with. You can have a similar result by opening a dll with tcc_add_dll(() and using its symbols directly. */ tcc_add_symbol(s, "add", (unsigned long)&add); tcc_relocate(s); tcc_get_symbol(s, &val, "foo"); func = (void *)val; func(32); tcc_delete(s); return 0; }