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#include <stdlib.h>
#include <stdio.h>
#include "libgccjit.h"
#include "harness.h"
struct foo
{
int x;
int y;
};
struct bar
{
int p;
int q;
};
void
create_code (gcc_jit_context *ctxt, void *user_data)
{
/* Let's try to inject the equivalent of:
void
test_bogus_access (struct foo *f)
{
f->p = f->q;
}
i.e. using the wrong struct.
*/
gcc_jit_type *void_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
gcc_jit_type *int_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
/* Map "struct foo". */
gcc_jit_field *x =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"x");
gcc_jit_field *y =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"y");
gcc_jit_field *foo_fields[] = {x, y};
gcc_jit_struct *struct_foo =
gcc_jit_context_new_struct_type (ctxt, NULL, "foo", 2, foo_fields);
/* Map "struct bar". */
gcc_jit_field *p =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"p");
gcc_jit_field *q =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"q");
/* We don't actually need a gcc_jit_type for "struct bar" for the test. */
gcc_jit_field *bar_fields[] = {p, q};
(void)gcc_jit_context_new_struct_type (ctxt, NULL, "foo", 2, bar_fields);
gcc_jit_type *foo_ptr =
gcc_jit_type_get_pointer (gcc_jit_struct_as_type (struct_foo));
/* Build the test function. */
gcc_jit_param *param_f =
gcc_jit_context_new_param (ctxt, NULL, foo_ptr, "f");
gcc_jit_function *test_fn =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
void_type,
"test_bogus_access",
1, ¶m_f,
0);
/* Erroneous: f->p = ... */
gcc_jit_lvalue *lvalue =
gcc_jit_rvalue_dereference_field (
gcc_jit_param_as_rvalue (param_f),
NULL,
p);
/* Erroneous: ... = f->q; */
gcc_jit_rvalue *rvalue =
gcc_jit_lvalue_as_rvalue (
gcc_jit_rvalue_dereference_field (
gcc_jit_param_as_rvalue (param_f),
NULL,
q));
gcc_jit_block *block =
gcc_jit_function_new_block (test_fn, NULL);
gcc_jit_block_add_assignment (
block,
NULL,
lvalue, rvalue);
gcc_jit_block_end_with_void_return (block, NULL);
}
void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
CHECK_VALUE (result, NULL);
/* Verify that the correct error message was emitted. */
CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
"gcc_jit_rvalue_dereference_field:"
" p is not a field of struct foo");
}
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