| 1 | /*
|
|---|
| 2 | * Copyright (c) 2010 Jiri Svoboda
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @file Main module.
|
|---|
| 30 | *
|
|---|
| 31 | * Main entry point for SBI, the Sysel Bootstrap Interpreter.
|
|---|
| 32 | * When run without parameters, the interpreter will enter interactive
|
|---|
| 33 | * mode.
|
|---|
| 34 | */
|
|---|
| 35 |
|
|---|
| 36 | #include <stdio.h>
|
|---|
| 37 | #include <stdlib.h>
|
|---|
| 38 | #include "os/os.h"
|
|---|
| 39 | #include "mytypes.h"
|
|---|
| 40 | #include "stype.h"
|
|---|
| 41 | #include "input.h"
|
|---|
| 42 | #include "lex.h"
|
|---|
| 43 | #include "parse.h"
|
|---|
| 44 |
|
|---|
| 45 | #include "program.h"
|
|---|
| 46 |
|
|---|
| 47 | #define MAX_NAME_SIZE 64
|
|---|
| 48 | static char name_buf[MAX_NAME_SIZE + 1];
|
|---|
| 49 |
|
|---|
| 50 | /** Process one specified source file.
|
|---|
| 51 | *
|
|---|
| 52 | * @param program The program to which the parsed code is added.
|
|---|
| 53 | * @param fname Name of file to read from.
|
|---|
| 54 | * @return EOK on success, EIO if file is not found,
|
|---|
| 55 | * EINVAL if file has syntax errors.
|
|---|
| 56 | */
|
|---|
| 57 | int program_file_process(stree_program_t *program, const char *fname)
|
|---|
| 58 | {
|
|---|
| 59 | input_t *input;
|
|---|
| 60 | lex_t lex;
|
|---|
| 61 | parse_t parse;
|
|---|
| 62 | int rc;
|
|---|
| 63 |
|
|---|
| 64 | rc = input_new_file(&input, fname);
|
|---|
| 65 | if (rc != EOK) {
|
|---|
| 66 | printf("Failed opening source file '%s'.\n", fname);
|
|---|
| 67 | return EIO;
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | /* Parse input file. */
|
|---|
| 71 | lex_init(&lex, input);
|
|---|
| 72 | parse_init(&parse, program, &lex);
|
|---|
| 73 | parse_module(&parse);
|
|---|
| 74 |
|
|---|
| 75 | /* Check for parse errors. */
|
|---|
| 76 | if (parse.error)
|
|---|
| 77 | return EINVAL;
|
|---|
| 78 |
|
|---|
| 79 | return EOK;
|
|---|
| 80 | }
|
|---|
| 81 |
|
|---|
| 82 | /** Process sources of the library.
|
|---|
| 83 | *
|
|---|
| 84 | * Processes all source files in the library. The list of library source files
|
|---|
| 85 | * is read from '<libdir>/libflist'. Each line of the file contains one file
|
|---|
| 86 | * name relative to <libdir>.
|
|---|
| 87 | */
|
|---|
| 88 | int program_lib_process(stree_program_t *program)
|
|---|
| 89 | {
|
|---|
| 90 | int rc;
|
|---|
| 91 | char *path, *fname;
|
|---|
| 92 | char *tmp;
|
|---|
| 93 | char *cp;
|
|---|
| 94 |
|
|---|
| 95 | FILE *f;
|
|---|
| 96 |
|
|---|
| 97 | path = os_get_lib_path();
|
|---|
| 98 | fname = os_str_acat(path, "/libflist");
|
|---|
| 99 |
|
|---|
| 100 | f = fopen(fname, "rt");
|
|---|
| 101 | if (f == NULL) {
|
|---|
| 102 | printf("Failed opening library list file '%s'.\n", fname);
|
|---|
| 103 | free(path);
|
|---|
| 104 | free(fname);
|
|---|
| 105 | return EIO;
|
|---|
| 106 | }
|
|---|
| 107 |
|
|---|
| 108 | free(fname);
|
|---|
| 109 |
|
|---|
| 110 | while (b_true) {
|
|---|
| 111 | if (fgets(name_buf, MAX_NAME_SIZE + 1, f) == NULL)
|
|---|
| 112 | break;
|
|---|
| 113 |
|
|---|
| 114 | /*
|
|---|
| 115 | * Remove trailing newline, if present.
|
|---|
| 116 | */
|
|---|
| 117 | cp = name_buf;
|
|---|
| 118 | while (*cp != '\0' && *cp != '\n')
|
|---|
| 119 | ++cp;
|
|---|
| 120 |
|
|---|
| 121 | if (*cp == '\n')
|
|---|
| 122 | *cp = '\0';
|
|---|
| 123 |
|
|---|
| 124 | tmp = os_str_acat(path, "/");
|
|---|
| 125 | fname = os_str_acat(tmp, name_buf);
|
|---|
| 126 | free(tmp);
|
|---|
| 127 |
|
|---|
| 128 | rc = program_file_process(program, fname);
|
|---|
| 129 | if (rc != EOK) {
|
|---|
| 130 | free(fname);
|
|---|
| 131 | free(path);
|
|---|
| 132 | fclose(f);
|
|---|
| 133 | return rc;
|
|---|
| 134 | }
|
|---|
| 135 |
|
|---|
| 136 | free(fname);
|
|---|
| 137 | }
|
|---|
| 138 |
|
|---|
| 139 | if (ferror(f)) {
|
|---|
| 140 | printf("Error reading from library list file.\n");
|
|---|
| 141 | free(path);
|
|---|
| 142 | fclose(f);
|
|---|
| 143 | return EIO;
|
|---|
| 144 | }
|
|---|
| 145 |
|
|---|
| 146 | free(path);
|
|---|
| 147 | fclose(f);
|
|---|
| 148 |
|
|---|
| 149 | return rc;
|
|---|
| 150 | }
|
|---|
