1  #include <stdlib.h>
       2  #include <stdio.h>
       3  
       4  #include "libgccjit.h"
       5  
       6  #include "harness.h"
       7  
       8  void
       9  create_code (gcc_jit_context *ctxt, void *user_data)
      10  {
      11    /* Let's try to inject the equivalent of:
      12  
      13       void
      14       test_fn ()
      15       {
      16          ((some_unspecified_fn_ptr_type)42) (43);
      17       }
      18  
      19       and verify that the API complains about the 42 not being a
      20       function pointer.  */
      21    gcc_jit_type *void_type =
      22      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
      23    gcc_jit_type *int_type =
      24      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
      25  
      26    /* Build the test_fn.  */
      27    gcc_jit_function *test_fn =
      28      gcc_jit_context_new_function (ctxt, NULL,
      29                                    GCC_JIT_FUNCTION_EXPORTED,
      30                                    void_type,
      31                                    "test_fn",
      32                                    0, NULL,
      33                                    0);
      34    gcc_jit_rvalue *not_a_function =
      35      gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42);
      36    gcc_jit_rvalue *arg =
      37      gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 43);
      38  
      39    /* ((some_unspecified_fn_ptr_type)42) (43); */
      40    gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
      41    gcc_jit_block_add_eval (
      42      block, NULL,
      43      gcc_jit_context_new_call_through_ptr (
      44        ctxt,
      45        NULL,
      46        /* This is not even a pointer, let alone a function pointer.  */
      47        not_a_function,
      48        1, &arg));
      49    gcc_jit_block_end_with_void_return (block, NULL);
      50  }
      51  
      52  void
      53  verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
      54  {
      55    CHECK_VALUE (result, NULL);
      56  
      57    /* Verify that the correct error message was emitted.  */
      58    CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
      59  		      ("gcc_jit_context_new_call_through_ptr:"
      60  		       " fn_ptr is not a ptr: (int)42 type: int"));
      61  }
      62