1 | #include <_ansi.h> |
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2 | #include <sys/types.h> |
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3 | #include <sys/stat.h> |
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4 | #include "sys/syscall.h" |
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5 | int errno; |
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6 | |
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7 | |
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8 | |
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9 | int |
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10 | _read (int file, |
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11 | char *ptr, |
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12 | int len) |
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13 | { |
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14 | return __trap3 (SYS_read, file, ptr, len); |
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15 | } |
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16 | |
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17 | |
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18 | int |
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19 | _lseek (int file, |
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20 | int ptr, |
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21 | int dir) |
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22 | { |
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23 | return __trap3 (SYS_lseek, file, ptr, dir); |
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24 | } |
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25 | |
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26 | static |
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27 | writechar (char c) |
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28 | { |
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29 | asm ("lda %0" : : "r" (c)); |
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30 | asm ("wdm"); |
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31 | } |
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32 | |
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33 | |
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34 | |
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35 | int |
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36 | _write ( |
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37 | int file, |
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38 | char *ptr, |
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39 | int len) |
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40 | { |
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41 | return __trap3 (SYS_write, file, ptr, len); |
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42 | } |
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43 | |
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44 | |
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45 | |
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46 | int |
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47 | _close (int file) |
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48 | { |
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49 | return __trap3 (SYS_close, file, 0, 0); |
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50 | } |
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51 | |
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52 | |
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53 | |
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54 | caddr_t |
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55 | _sbrk (int incr) |
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56 | { |
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57 | extern char end; /* Defined by the linker */ |
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58 | static char *heap_end; |
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59 | char *prev_heap_end; |
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60 | |
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61 | if (heap_end == 0) |
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62 | { |
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63 | heap_end = &end; |
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64 | } |
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65 | prev_heap_end = heap_end; |
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66 | if (heap_end + incr > stack_ptr) |
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67 | { |
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68 | _write (1, "Heap and stack collision\n", 25); |
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69 | abort (); |
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70 | } |
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71 | |
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72 | heap_end += incr; |
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73 | return (caddr_t) prev_heap_end; |
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74 | } |
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75 | |
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76 | |
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77 | |
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78 | |
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79 | int |
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80 | _fstat (int file, |
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81 | struct stat *st) |
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82 | { |
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83 | st->st_mode = S_IFCHR; |
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84 | return 0; |
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85 | } |
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86 | |
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87 | |
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88 | int |
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89 | _open ( |
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90 | char *path, |
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91 | int flags) |
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92 | { |
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93 | return __trap3 (SYS_open, path, flags, 0); |
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94 | } |
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95 | |
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96 | int |
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97 | _unlink () |
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98 | { |
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99 | return -1; |
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100 | } |
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101 | |
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102 | isatty (fd) |
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103 | int fd; |
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104 | { |
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105 | return 1; |
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106 | } |
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107 | |
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108 | |
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109 | |
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110 | _exit (n) |
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111 | { |
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112 | return __trap3 (SYS_exit, n, 0, 0); |
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113 | } |
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114 | |
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115 | |
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116 | _kill (n, m) |
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117 | { |
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118 | return __trap3 (SYS_exit, 0xdead, 0, 0); |
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119 | } |
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120 | |
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121 | |
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122 | _getpid (n) |
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123 | { |
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124 | return 1; |
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125 | } |
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126 | |
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127 | |
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128 | |
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129 | |
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130 | _raise () |
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131 | { |
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132 | |
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133 | } |
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134 | |
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135 | int |
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136 | _stat (const char *path, struct stat *st) |
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137 | |
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138 | { |
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139 | return _trap3 (SYS_stat, path, st, 0); |
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140 | } |
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141 | |
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142 | int |
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143 | _chmod (const char *path, short mode) |
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144 | { |
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145 | return _trap3 (SYS_chmod, path, mode); |
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146 | } |
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147 | |
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148 | int |
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149 | _chown (const char *path, short owner, short group) |
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150 | { |
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151 | return _trap3 (SYS_chown, path, owner, group); |
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152 | } |
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153 | |
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154 | int |
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155 | _utime (path, times) |
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156 | const char *path; |
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157 | char *times; |
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158 | { |
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159 | return _trap3 (SYS_utime, path, times); |
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160 | } |
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161 | |
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162 | int |
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163 | _fork () |
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164 | { |
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165 | return _trap3 (SYS_fork); |
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166 | } |
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167 | |
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168 | int |
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169 | _wait (statusp) |
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170 | int *statusp; |
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171 | { |
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172 | return _trap3 (SYS_wait); |
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173 | } |
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174 | |
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175 | int |
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176 | _execve (const char *path, char *const argv[], char *const envp[]) |
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177 | { |
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178 | return _trap3 (SYS_execve, path, argv, envp); |
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179 | } |
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180 | |
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181 | int |
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182 | _execv (const char *path, char *const argv[]) |
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183 | { |
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184 | return _trap3 (SYS_execv, path, argv); |
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185 | } |
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186 | |
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187 | int |
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188 | _pipe (int *fd) |
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189 | { |
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190 | return _trap3 (SYS_pipe, fd); |
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191 | } |
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