1  #include <stdlib.h>
       2  #include <stdio.h>
       3  
       4  #include "libgccjit.h"
       5  
       6  #include "harness.h"
       7  
       8  #ifdef __cplusplus
       9  extern "C" {
      10  #endif
      11  
      12    extern void
      13    called_function (void);
      14  
      15  #ifdef __cplusplus
      16  }
      17  #endif
      18  
      19  void
      20  create_code (gcc_jit_context *ctxt, void *user_data)
      21  {
      22    /* Let's try to inject the equivalent of:
      23       extern void called_function (int p);
      24  
      25       void
      26       test_caller ()
      27       {
      28          called_function (); // missing arg
      29       }
      30  
      31       and verify that the API complains about the missing argument.
      32    */
      33    gcc_jit_type *void_type =
      34      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
      35    gcc_jit_type *int_type =
      36      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
      37  
      38    /* Declare the imported function.  */
      39    gcc_jit_param *param_p =
      40      gcc_jit_context_new_param (ctxt, NULL, int_type, "p");
      41    gcc_jit_function *called_fn =
      42      gcc_jit_context_new_function (ctxt, NULL,
      43                                    GCC_JIT_FUNCTION_IMPORTED,
      44                                    void_type,
      45                                    "called_function",
      46                                    1, &param_p,
      47                                    0);
      48  
      49    /* Build the test_fn.  */
      50    gcc_jit_function *test_fn =
      51      gcc_jit_context_new_function (ctxt, NULL,
      52                                    GCC_JIT_FUNCTION_EXPORTED,
      53                                    void_type,
      54                                    "test_caller",
      55                                    0, NULL,
      56                                    0);
      57    gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
      58    /* called_function ();  */
      59    gcc_jit_block_add_eval (
      60      block, NULL,
      61      gcc_jit_context_new_call (ctxt,
      62                                NULL,
      63                                called_fn,
      64                                0, NULL));
      65    /* the above has the wrong arg count.  */
      66    gcc_jit_block_end_with_void_return (block, NULL);
      67  }
      68  
      69  extern void
      70  called_function (void)
      71  {
      72  }
      73  
      74  void
      75  verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
      76  {
      77    /* Ensure that mismatching arg count leads to the API giving a NULL
      78       result back.  */
      79    CHECK_VALUE (result, NULL);
      80  
      81    /* Verify that the correct error message was emitted.  */
      82    CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
      83  		      ("gcc_jit_context_new_call:"
      84  		       " not enough arguments to function \"called_function\""
      85  		       " (got 0 args, expected 1)"));
      86  }
      87