103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <stddef.h>
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#include "libgccjit.h"
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#include "harness.h"
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#define BUFFER_SIZE (1024)
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char test_buffer[1024];
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void
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create_code (gcc_jit_context *ctxt, void *user_data)
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{
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/* Let's try to inject the equivalent of:
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void test_of_array_as_pointer (const char *name)
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{
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snprintf (test_buffer, sizeof (test_buffer),
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"hello %s", name);
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}
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*/
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gcc_jit_type *void_type =
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gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
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gcc_jit_type *const_char_ptr_type =
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gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CONST_CHAR_PTR);
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gcc_jit_type *char_type =
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gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CHAR);
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gcc_jit_type *char_ptr_type =
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gcc_jit_type_get_pointer (char_type);
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gcc_jit_type *int_type =
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gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
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gcc_jit_type *size_t_type =
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gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_SIZE_T);
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gcc_jit_type *buf_type =
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gcc_jit_context_new_array_type (ctxt, NULL, char_type, BUFFER_SIZE);
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/* extern int snprintf(char *str, size_t size, const char *format, ...); */
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gcc_jit_param *param_s =
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gcc_jit_context_new_param (ctxt, NULL, char_ptr_type, "s");
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gcc_jit_param *param_n =
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gcc_jit_context_new_param (ctxt, NULL, size_t_type, "n");
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gcc_jit_param *param_format =
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gcc_jit_context_new_param (ctxt, NULL, const_char_ptr_type, "format");
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gcc_jit_param *snprintf_params[3] = {param_s, param_n, param_format};
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gcc_jit_function *snprintf =
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gcc_jit_context_new_function (ctxt, NULL,
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GCC_JIT_FUNCTION_IMPORTED,
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int_type,
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"snprintf",
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3, snprintf_params,
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1);
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gcc_jit_param *param_name =
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gcc_jit_context_new_param (ctxt, NULL, const_char_ptr_type, "name");
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gcc_jit_function *test_fn =
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gcc_jit_context_new_function (ctxt, NULL,
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GCC_JIT_FUNCTION_EXPORTED,
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void_type,
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"test_of_array_as_pointer",
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1, ¶m_name,
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0);
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gcc_jit_lvalue *buffer =
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gcc_jit_context_new_global (ctxt, NULL,
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GCC_JIT_GLOBAL_IMPORTED,
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buf_type,
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"test_buffer");
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gcc_jit_block *block = gcc_jit_function_new_block(test_fn, "entry");
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/* snprintf(buffer, sizeof(buffer), "hello %s", name); */
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gcc_jit_rvalue *args[4];
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args[0] = gcc_jit_context_new_cast (
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ctxt, NULL,
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/* Here's the difference with test-array-as-pointer.c: */
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gcc_jit_lvalue_as_rvalue (buffer),
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char_ptr_type);
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args[1] = gcc_jit_context_new_rvalue_from_int (ctxt,
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size_t_type,
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BUFFER_SIZE);
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args[2] = gcc_jit_context_new_string_literal (ctxt, "hello %s");
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args[3] = gcc_jit_param_as_rvalue (param_name);
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gcc_jit_block_add_eval (
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block, NULL,
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gcc_jit_context_new_call (ctxt, NULL, snprintf, 4, args));
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gcc_jit_block_end_with_void_return (block, NULL);
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}
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void
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verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
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{
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CHECK_VALUE (result, NULL);
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/* Verify that the correct error message was emitted. */
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CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
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"gcc_jit_context_new_cast:"
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" cannot cast test_buffer"
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" from type: char[1024]"
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" to type: char *");
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}
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