| #include <stdlib.h> |
| #include <stdio.h> |
| #include <stddef.h> |
| |
| #include "libgccjit.h" |
| |
| #include "harness.h" |
| |
| void |
| create_code (gcc_jit_context *ctxt, void *user_data) |
| { |
| /* Let's try to inject the equivalent of: |
| |
| void |
| test_trap (void) |
| { |
| *((int *)0) = 42; |
| } |
| */ |
| 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); |
| gcc_jit_type *int_ptr_type |
| = gcc_jit_type_get_pointer (int_type); |
| |
| /* Build the test_fn. */ |
| gcc_jit_function *func |
| = gcc_jit_context_new_function (ctxt, NULL, |
| GCC_JIT_FUNCTION_EXPORTED, |
| void_type, |
| "test_trap", |
| 0, NULL, |
| 0); |
| |
| gcc_jit_block *initial = gcc_jit_function_new_block (func, "initial"); |
| |
| gcc_jit_rvalue *null_ptr |
| = gcc_jit_context_new_rvalue_from_ptr (ctxt, int_ptr_type, NULL); |
| |
| /* "*((int *)0) = 42;" */ |
| gcc_jit_block_add_assignment ( |
| initial, NULL, |
| gcc_jit_rvalue_dereference (null_ptr, NULL), |
| gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42)); |
| |
| gcc_jit_block_end_with_void_return (initial, NULL); |
| } |
| |
| void |
| verify_code (gcc_jit_context *ctxt, gcc_jit_result *result) |
| { |
| typedef void (*fn_type) (void); |
| CHECK_NON_NULL (result); |
| fn_type test_array = |
| (fn_type)gcc_jit_result_get_code (result, "test_trap"); |
| CHECK_NON_NULL (test_array); |
| /* Don't attempt to call it. */ |
| } |