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Commit | Line | Data |
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e7f9bcdc | 1 | /* fix-header.c - Make C header file suitable for C++. |
3b708058 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, |
c1bad961 | 3 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
7936052f PB |
4 | |
5 | This program is free software; you can redistribute it and/or modify it | |
6 | under the terms of the GNU General Public License as published by the | |
7 | Free Software Foundation; either version 2, or (at your option) any | |
8 | later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
1a10ad65 | 17 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
7936052f PB |
18 | |
19 | /* This program massages a system include file (such as stdio.h), | |
9e04c65a | 20 | into a form that is compatible with GNU C and GNU C++. |
7936052f PB |
21 | |
22 | * extern "C" { ... } braces are added (inside #ifndef __cplusplus), | |
05227b51 | 23 | if they seem to be needed. These prevent C++ compilers from name |
7936052f PB |
24 | mangling the functions inside the braces. |
25 | ||
26 | * If an old-style incomplete function declaration is seen (without | |
27 | an argument list), and it is a "standard" function listed in | |
28 | the file sys-protos.h (and with a non-empty argument list), then | |
29 | the declaration is converted to a complete prototype by replacing | |
081f5e7e | 30 | the empty parameter list with the argument list from sys-protos.h. |
7936052f PB |
31 | |
32 | * The program can be given a list of (names of) required standard | |
9faa82d8 | 33 | functions (such as fclose for stdio.h). If a required function |
7936052f PB |
34 | is not seen in the input, then a prototype for it will be |
35 | written to the output. | |
36 | ||
37 | * If all of the non-comment code of the original file is protected | |
38 | against multiple inclusion: | |
39 | #ifndef FOO | |
40 | #define FOO | |
41 | <body of include file> | |
42 | #endif | |
43 | then extra matter added to the include file is placed inside the <body>. | |
44 | ||
45 | * If the input file is OK (nothing needs to be done); | |
46 | the output file is not written (nor removed if it exists). | |
47 | ||
48 | There are also some special actions that are done for certain | |
49 | well-known standard include files: | |
50 | ||
51 | * If argv[1] is "sys/stat.h", the Posix.1 macros | |
52 | S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if | |
53 | they were missing, and the corresponding "traditional" S_IFxxx | |
54 | macros were defined. | |
55 | ||
56 | * If argv[1] is "errno.h", errno is declared if it was missing. | |
57 | ||
58 | * TODO: The input file should be read complete into memory, because: | |
59 | a) it needs to be scanned twice anyway, and | |
60 | b) it would be nice to allow update in place. | |
61 | ||
62 | Usage: | |
b3ca463c | 63 | fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] |
7936052f PB |
64 | where: |
65 | * FOO.H is the relative file name of the include file, | |
66 | as it would be #include'd by a C file. (E.g. stdio.h) | |
67 | * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h) | |
68 | * OUTFILE.H is the full pathname for where to write the output file, | |
69 | if anything needs to be done. (e.g. ./include/stdio.h) | |
c1bad961 | 70 | * OPTIONS can be -D or -I switches as you would pass to cpp. |
7936052f | 71 | |
0f41302f | 72 | Written by Per Bothner <bothner@cygnus.com>, July 1993. */ |
7936052f | 73 | |
4977bab6 | 74 | #include "bconfig.h" |
b04cd507 | 75 | #include "system.h" |
4977bab6 ZW |
76 | #include "coretypes.h" |
77 | #include "tm.h" | |
7936052f PB |
78 | #include "obstack.h" |
79 | #include "scan.h" | |
b3ca463c | 80 | #include "cpplib.h" |
5793b276 | 81 | #include "c-incpath.h" |
0afdf565 | 82 | |
439f7bc3 AJ |
83 | static void v_fatal (const char *, va_list) |
84 | ATTRIBUTE_PRINTF (1,0) ATTRIBUTE_NORETURN; | |
85 | static void fatal (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; | |
35e93fb4 | 86 | |
b3ca463c | 87 | sstring buf; |
8fb0620c | 88 | |
7936052f PB |
89 | int verbose = 0; |
90 | int partial_count = 0; | |
b3ca463c PB |
91 | int warnings = 0; |
92 | ||
b3ca463c | 93 | #if ADD_MISSING_EXTERN_C |
7936052f | 94 | int missing_extern_C_count = 0; |
af86171d | 95 | #endif |
7936052f PB |
96 | |
97 | #include "xsys-protos.h" | |
98 | ||
b3ca463c | 99 | #ifdef FIXPROTO_IGNORE_LIST |
0f41302f | 100 | /* This is a currently unused feature. */ |
b3ca463c PB |
101 | |
102 | /* List of files and directories to ignore. | |
103 | A directory name (ending in '/') means ignore anything in that | |
104 | directory. (It might be more efficient to do directory pruning | |
105 | earlier in fixproto, but this is simpler and easier to customize.) */ | |
106 | ||
c083a819 | 107 | static const char *const files_to_ignore[] = { |
b3ca463c PB |
108 | "X11/", |
109 | FIXPROTO_IGNORE_LIST | |
110 | 0 | |
111 | }; | |
112 | #endif | |
113 | ||
05227b51 PB |
114 | char *inf_buffer; |
115 | char *inf_limit; | |
116 | char *inf_ptr; | |
27e2564a | 117 | static const char *cur_file; |
05227b51 | 118 | |
7936052f PB |
119 | /* Certain standard files get extra treatment */ |
120 | ||
121 | enum special_file | |
122 | { | |
123 | no_special, | |
4f1817ee MH |
124 | #ifdef errno_h |
125 | #undef errno_h | |
126 | #endif | |
b3ca463c | 127 | errno_h, |
4f1817ee MH |
128 | #ifdef stdio_h |
129 | #undef stdio_h | |
130 | #endif | |
b3ca463c | 131 | stdio_h, |
4f1817ee MH |
132 | #ifdef stdlib_h |
133 | #undef stdlib_h | |
134 | #endif | |
5a3f1ec3 | 135 | stdlib_h, |
4f1817ee MH |
136 | #ifdef sys_stat_h |
137 | #undef sys_stat_h | |
138 | #endif | |
b3ca463c PB |
139 | sys_stat_h |
140 | }; | |
141 | ||
142 | /* A NAMELIST is a sequence of names, separated by '\0', and terminated | |
0f41302f | 143 | by an empty name (i.e. by "\0\0"). */ |
b3ca463c | 144 | |
0f41302f | 145 | typedef const char *namelist; |
b3ca463c | 146 | |
0f41302f | 147 | /* The following macros provide the bits for symbol_flags. */ |
94442062 PB |
148 | typedef int symbol_flags; |
149 | ||
0f41302f | 150 | /* Used to mark names defined in the ANSI/ISO C standard. */ |
94442062 PB |
151 | #define ANSI_SYMBOL 1 |
152 | ||
9e04c65a KG |
153 | /* We no longer massage include files for POSIX or XOPEN symbols, |
154 | as there are now several versions of the POSIX and XOPEN standards, | |
155 | and it would be a maintenance nightmare for us to track them all. | |
156 | Better to be compatible with the system include files. */ | |
157 | /*#define ADD_MISSING_POSIX 1 */ | |
158 | /*#define ADD_MISSING_XOPEN 1 */ | |
159 | ||
160 | #if ADD_MISSING_POSIX | |
0f41302f | 161 | /* Used to mark names defined in the Posix.1 or Posix.2 standard. */ |
94442062 PB |
162 | #define POSIX1_SYMBOL 2 |
163 | #define POSIX2_SYMBOL 4 | |
9e04c65a KG |
164 | #else |
165 | #define POSIX1_SYMBOL 0 | |
166 | #define POSIX2_SYMBOL 0 | |
167 | #endif | |
94442062 | 168 | |
9e04c65a | 169 | #if ADD_MISSING_XOPEN |
0f41302f | 170 | /* Used to mark names defined in X/Open Portability Guide. */ |
5a3f1ec3 | 171 | #define XOPEN_SYMBOL 8 |
0f41302f | 172 | /* Used to mark names defined in X/Open UNIX Extensions. */ |
5a3f1ec3 | 173 | #define XOPEN_EXTENDED_SYMBOL 16 |
9e04c65a KG |
174 | #else |
175 | #define XOPEN_SYMBOL 0 | |
176 | #define XOPEN_EXTENDED_SYMBOL 0 | |
177 | #endif | |
5a3f1ec3 | 178 | |
94442062 | 179 | /* Used to indicate names that are not functions */ |
5a3f1ec3 | 180 | #define MACRO_SYMBOL 512 |
94442062 PB |
181 | |
182 | struct symbol_list { | |
183 | symbol_flags flags; | |
184 | namelist names; | |
b3ca463c PB |
185 | }; |
186 | ||
94442062 PB |
187 | #define SYMBOL_TABLE_SIZE 10 |
188 | struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; | |
189 | int cur_symbol_table_size; | |
b3ca463c | 190 | |
439f7bc3 AJ |
191 | static void add_symbols (symbol_flags, namelist); |
192 | static struct fn_decl *lookup_std_proto (const char *, int); | |
193 | static void write_lbrac (void); | |
194 | static void recognized_macro (const char *); | |
195 | static void check_macro_names (cpp_reader *, namelist); | |
196 | static void read_scan_file (char *, int, char **); | |
197 | static void write_rbrac (void); | |
198 | static int inf_skip_spaces (int); | |
199 | static int inf_read_upto (sstring *, int); | |
200 | static int inf_scan_ident (sstring *, int); | |
201 | static int check_protection (int *, int *); | |
202 | static void cb_file_change (cpp_reader *, const struct line_map *); | |
bcc5cac9 KG |
203 | |
204 | static void | |
439f7bc3 | 205 | add_symbols (symbol_flags flags, namelist names) |
b3ca463c | 206 | { |
94442062 PB |
207 | symbol_table[cur_symbol_table_size].flags = flags; |
208 | symbol_table[cur_symbol_table_size].names = names; | |
209 | cur_symbol_table_size++; | |
210 | if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) | |
211 | fatal ("too many calls to add_symbols"); | |
0f41302f | 212 | symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ |
b3ca463c PB |
213 | } |
214 | ||
94442062 | 215 | struct std_include_entry { |
c083a819 KG |
216 | const char *const name; |
217 | const symbol_flags flags; | |
218 | const namelist names; | |
94442062 PB |
219 | }; |
220 | ||
0f41302f | 221 | const char NONE[] = ""; /* The empty namelist. */ |
94442062 | 222 | |
0f41302f | 223 | /* Special name to indicate a continuation line in std_include_table. */ |
94442062 | 224 | const char CONTINUED[] = ""; |
b3ca463c | 225 | |
c083a819 | 226 | const struct std_include_entry *include_entry; |
b3ca463c | 227 | |
c083a819 | 228 | const struct std_include_entry std_include_table [] = { |
94442062 | 229 | { "ctype.h", ANSI_SYMBOL, |
b3ca463c | 230 | "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ |
94442062 | 231 | isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, |
b3ca463c | 232 | |
94442062 | 233 | { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, |
b3ca463c | 234 | |
94442062 | 235 | { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, |
b3ca463c | 236 | |
0f41302f | 237 | /* ANSI_SYMBOL is wrong, but ... */ |
94442062 | 238 | { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ |
b3ca463c PB |
239 | mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ |
240 | scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ | |
241 | waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ | |
94442062 | 242 | wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, |
b3ca463c | 243 | |
94442062 | 244 | { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, |
b3ca463c PB |
245 | |
246 | /* Maybe also "getgrent fgetgrent setgrent endgrent" */ | |
94442062 | 247 | { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, |
b3ca463c PB |
248 | |
249 | /*{ "limit.h", ... provided by gcc }, */ | |
250 | ||
94442062 | 251 | { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, |
b3ca463c | 252 | |
94442062 PB |
253 | { "math.h", ANSI_SYMBOL, |
254 | "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ | |
b3ca463c | 255 | fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ |
94442062 PB |
256 | tan\0tanh\0" }, |
257 | ||
258 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, | |
b3ca463c | 259 | |
94442062 | 260 | { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, |
b3ca463c | 261 | |
0f41302f | 262 | /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ |
94442062 | 263 | { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, |
b3ca463c PB |
264 | |
265 | /* Left out signal() - its prototype is too complex for us! | |
266 | Also left out "sigaction sigaddset sigdelset sigemptyset | |
267 | sigfillset sigismember sigpending sigprocmask sigsuspend" | |
268 | because these need sigset_t or struct sigaction. | |
0f41302f | 269 | Most systems that provide them will also declare them. */ |
94442062 | 270 | { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, |
b3ca463c | 271 | |
94442062 PB |
272 | { "stdio.h", ANSI_SYMBOL, |
273 | "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ | |
b3ca463c | 274 | fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ |
9e04c65a | 275 | fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\ |
b3ca463c PB |
276 | printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ |
277 | setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ | |
94442062 PB |
278 | tmpnam\0ungetc\0" }, |
279 | { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, | |
0f41302f | 280 | { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ |
b3ca463c PB |
281 | /* Should perhaps also handle NULL, EOF, ... ? */ |
282 | ||
283 | /* "div ldiv", - ignored because these depend on div_t, ldiv_t | |
284 | ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" | |
285 | Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. | |
286 | Should perhaps also add NULL */ | |
94442062 PB |
287 | { "stdlib.h", ANSI_SYMBOL, |
288 | "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ | |
b3ca463c | 289 | exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ |
94442062 | 290 | srand\0strtod\0strtol\0strtoul\0system\0" }, |
5a3f1ec3 | 291 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, |
b3ca463c | 292 | |
94442062 | 293 | { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ |
b3ca463c PB |
294 | strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ |
295 | strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ | |
94442062 | 296 | strtok\0strxfrm\0" }, |
b3ca463c PB |
297 | /* Should perhaps also add NULL and size_t */ |
298 | ||
5a3f1ec3 PB |
299 | { "strings.h", XOPEN_EXTENDED_SYMBOL, |
300 | "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, | |
301 | ||
302 | { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, | |
303 | ||
304 | /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines | |
305 | ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, | |
0f41302f | 306 | and many systems do have <sys/ioctl.h> but not <strops.h>. */ |
5a3f1ec3 PB |
307 | { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, |
308 | ||
309 | { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, | |
310 | ||
94442062 PB |
311 | { "sys/stat.h", POSIX1_SYMBOL, |
312 | "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, | |
313 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
314 | "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ |
315 | S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, | |
5a3f1ec3 PB |
316 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, |
317 | ||
318 | #if 0 | |
319 | /* How do we handle fd_set? */ | |
320 | { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, | |
321 | { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, | |
322 | #endif | |
b3ca463c | 323 | |
94442062 | 324 | { "sys/times.h", POSIX1_SYMBOL, "times\0" }, |
b3ca463c PB |
325 | /* "sys/types.h" add types (not in old g++-include) */ |
326 | ||
94442062 | 327 | { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, |
b3ca463c | 328 | |
94442062 PB |
329 | { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, |
330 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
331 | "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ |
332 | WTERMSIG\0WNOHANG\0WNOTRACED\0" }, | |
333 | ||
94442062 | 334 | { "tar.h", POSIX1_SYMBOL, NONE }, |
b3ca463c | 335 | |
94442062 PB |
336 | { "termios.h", POSIX1_SYMBOL, |
337 | "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, | |
b3ca463c | 338 | |
94442062 PB |
339 | { "time.h", ANSI_SYMBOL, |
340 | "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, | |
b3ca463c | 341 | |
94442062 PB |
342 | { "unistd.h", POSIX1_SYMBOL, |
343 | "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ | |
b3ca463c | 344 | dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ |
94442062 | 345 | getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ |
b3ca463c PB |
346 | getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ |
347 | setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ | |
94442062 PB |
348 | ttyname\0unlink\0write\0" }, |
349 | { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, | |
5a3f1ec3 | 350 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, |
8a2cf1b4 | 351 | "lockf\0gethostid\0gethostname\0readlink\0symlink\0" }, |
5a3f1ec3 PB |
352 | |
353 | { "utime.h", POSIX1_SYMBOL, "utime\0" }, | |
b3ca463c | 354 | |
94442062 | 355 | { NULL, 0, NONE } |
7936052f PB |
356 | }; |
357 | ||
358 | enum special_file special_file_handling = no_special; | |
359 | ||
0f41302f | 360 | /* They are set if the corresponding macro has been seen. */ |
5a3f1ec3 | 361 | /* The following are only used when handling sys/stat.h */ |
7936052f PB |
362 | int seen_S_IFBLK = 0, seen_S_ISBLK = 0; |
363 | int seen_S_IFCHR = 0, seen_S_ISCHR = 0; | |
364 | int seen_S_IFDIR = 0, seen_S_ISDIR = 0; | |
365 | int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; | |
366 | int seen_S_IFLNK = 0, seen_S_ISLNK = 0; | |
367 | int seen_S_IFREG = 0, seen_S_ISREG = 0; | |
5a3f1ec3 PB |
368 | /* The following are only used when handling errno.h */ |
369 | int seen_errno = 0; | |
370 | /* The following are only used when handling stdlib.h */ | |
371 | int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; | |
10b8b0ba | 372 | \f |
7936052f PB |
373 | struct obstack scan_file_obstack; |
374 | ||
375 | /* NOTE: If you edit this, also edit gen-protos.c !! */ | |
0f41302f | 376 | |
bcc5cac9 | 377 | static struct fn_decl * |
439f7bc3 | 378 | lookup_std_proto (const char *name, int name_length) |
7936052f | 379 | { |
5fa7f88c | 380 | int i = hashstr (name, name_length) % HASH_SIZE; |
7936052f PB |
381 | int i0 = i; |
382 | for (;;) | |
383 | { | |
384 | struct fn_decl *fn; | |
385 | if (hash_tab[i] == 0) | |
386 | return NULL; | |
387 | fn = &std_protos[hash_tab[i]]; | |
79c9824e | 388 | if ((int) strlen (fn->fname) == name_length |
b3ca463c | 389 | && strncmp (fn->fname, name, name_length) == 0) |
7936052f PB |
390 | return fn; |
391 | i = (i+1) % HASH_SIZE; | |
392 | if (i == i0) | |
c2b6b9a1 | 393 | abort (); |
7936052f PB |
394 | } |
395 | } | |
396 | ||
397 | char *inc_filename; | |
398 | int inc_filename_length; | |
bcc5cac9 | 399 | const char *progname = "fix-header"; |
7936052f | 400 | FILE *outf; |
7936052f PB |
401 | sstring line; |
402 | ||
403 | int lbrac_line, rbrac_line; | |
404 | ||
b3ca463c | 405 | int required_unseen_count = 0; |
5a3f1ec3 | 406 | int required_other = 0; |
7936052f | 407 | |
dd3f0101 | 408 | static void |
439f7bc3 | 409 | write_lbrac (void) |
7936052f | 410 | { |
7936052f PB |
411 | if (partial_count) |
412 | { | |
413 | fprintf (outf, "#ifndef _PARAMS\n"); | |
414 | fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); | |
415 | fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); | |
416 | fprintf (outf, "#else\n"); | |
417 | fprintf (outf, "#define _PARAMS(ARGS) ()\n"); | |
418 | fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); | |
419 | } | |
420 | } | |
421 | ||
422 | struct partial_proto | |
423 | { | |
424 | struct partial_proto *next; | |
7936052f PB |
425 | struct fn_decl *fn; |
426 | int line_seen; | |
427 | }; | |
428 | ||
429 | struct partial_proto *partial_proto_list = NULL; | |
430 | ||
b3ca463c | 431 | struct partial_proto required_dummy_proto, seen_dummy_proto; |
7936052f PB |
432 | #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) |
433 | #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) | |
b3ca463c PB |
434 | #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) |
435 | #define SEEN(FN) ((FN)->partial == &seen_dummy_proto) | |
7936052f | 436 | |
bcc5cac9 | 437 | static void |
439f7bc3 | 438 | recognized_macro (const char *fname) |
7936052f | 439 | { |
0f41302f | 440 | /* The original include file defines fname as a macro. */ |
b3ca463c | 441 | struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); |
7936052f | 442 | |
0f41302f | 443 | /* Since fname is a macro, don't require a prototype for it. */ |
b3ca463c | 444 | if (fn) |
7936052f | 445 | { |
b3ca463c PB |
446 | if (REQUIRED (fn)) |
447 | required_unseen_count--; | |
448 | SET_SEEN (fn); | |
05227b51 | 449 | } |
7936052f | 450 | |
05227b51 PB |
451 | switch (special_file_handling) |
452 | { | |
b3ca463c | 453 | case errno_h: |
5a3f1ec3 PB |
454 | if (strcmp (fname, "errno") == 0 && !seen_errno) |
455 | seen_errno = 1, required_other--; | |
456 | break; | |
457 | case stdlib_h: | |
458 | if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE) | |
459 | seen_EXIT_FAILURE = 1, required_other--; | |
460 | if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS) | |
461 | seen_EXIT_SUCCESS = 1, required_other--; | |
05227b51 | 462 | break; |
b3ca463c | 463 | case sys_stat_h: |
05227b51 | 464 | if (fname[0] == 'S' && fname[1] == '_') |
7936052f | 465 | { |
05227b51 PB |
466 | if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; |
467 | else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; | |
468 | else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; | |
469 | else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; | |
470 | else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; | |
471 | else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; | |
472 | else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; | |
473 | else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; | |
474 | else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; | |
475 | else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; | |
476 | else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; | |
477 | else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; | |
7936052f | 478 | } |
9e04c65a KG |
479 | break; |
480 | ||
481 | default: | |
482 | break; | |
05227b51 PB |
483 | } |
484 | } | |
7936052f | 485 | |
05227b51 | 486 | void |
439f7bc3 | 487 | recognized_extern (const cpp_token *name) |
05227b51 PB |
488 | { |
489 | switch (special_file_handling) | |
490 | { | |
b3ca463c | 491 | case errno_h: |
bfb9dc7f | 492 | if (cpp_ideq (name, "errno")) |
5a3f1ec3 | 493 | seen_errno = 1, required_other--; |
05227b51 | 494 | break; |
9e04c65a KG |
495 | |
496 | default: | |
497 | break; | |
05227b51 PB |
498 | } |
499 | } | |
7936052f | 500 | |
05227b51 | 501 | /* Called by scan_decls if it saw a function definition for a function |
27e2564a NB |
502 | named FNAME. KIND is 'I' for an inline function; 'F' if a normal |
503 | function declaration preceded by 'extern "C"' (or nested inside | |
504 | 'extern "C"' braces); or 'f' for other function declarations. */ | |
7936052f | 505 | |
05227b51 | 506 | void |
439f7bc3 AJ |
507 | recognized_function (const cpp_token *fname, unsigned int line, int kind, |
508 | int have_arg_list) | |
05227b51 PB |
509 | { |
510 | struct partial_proto *partial; | |
511 | int i; | |
512 | struct fn_decl *fn; | |
7936052f | 513 | |
a28c5035 NB |
514 | fn = lookup_std_proto ((const char *) NODE_NAME (fname->val.node), |
515 | NODE_LEN (fname->val.node)); | |
7936052f | 516 | |
0f41302f | 517 | /* Remove the function from the list of required function. */ |
b3ca463c | 518 | if (fn) |
05227b51 | 519 | { |
b3ca463c PB |
520 | if (REQUIRED (fn)) |
521 | required_unseen_count--; | |
522 | SET_SEEN (fn); | |
05227b51 | 523 | } |
e9cd0b25 | 524 | |
0f41302f | 525 | /* If we have a full prototype, we're done. */ |
b3ca463c | 526 | if (have_arg_list) |
05227b51 | 527 | return; |
dd3f0101 | 528 | |
05227b51 PB |
529 | if (kind == 'I') /* don't edit inline function */ |
530 | return; | |
531 | ||
532 | /* If the partial prototype was included from some other file, | |
0f41302f | 533 | we don't need to patch it up (in this run). */ |
27e2564a | 534 | i = strlen (cur_file); |
05227b51 | 535 | if (i < inc_filename_length |
27e2564a | 536 | || strcmp (inc_filename, cur_file + (i - inc_filename_length)) != 0) |
05227b51 PB |
537 | return; |
538 | ||
539 | if (fn == NULL) | |
540 | return; | |
ad3ffa44 | 541 | if (fn->params[0] == '\0') |
05227b51 PB |
542 | return; |
543 | ||
544 | /* We only have a partial function declaration, | |
0f41302f | 545 | so remember that we have to add a complete prototype. */ |
05227b51 | 546 | partial_count++; |
703ad42b | 547 | partial = obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); |
93c80368 | 548 | partial->line_seen = line; |
05227b51 PB |
549 | partial->fn = fn; |
550 | fn->partial = partial; | |
551 | partial->next = partial_proto_list; | |
552 | partial_proto_list = partial; | |
553 | if (verbose) | |
554 | { | |
555 | fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", | |
041c3194 | 556 | inc_filename, fn->fname); |
b3ca463c PB |
557 | } |
558 | } | |
559 | ||
560 | /* For any name in NAMES that is defined as a macro, | |
0f41302f | 561 | call recognized_macro on it. */ |
b3ca463c | 562 | |
bcc5cac9 | 563 | static void |
439f7bc3 | 564 | check_macro_names (cpp_reader *pfile, namelist names) |
b3ca463c | 565 | { |
6d2c2047 | 566 | size_t len; |
b3ca463c PB |
567 | while (*names) |
568 | { | |
6d2c2047 | 569 | len = strlen (names); |
e605b040 | 570 | if (cpp_defined (pfile, (const unsigned char *)names, len)) |
b3ca463c | 571 | recognized_macro (names); |
6d2c2047 | 572 | names += len + 1; |
05227b51 PB |
573 | } |
574 | } | |
7936052f | 575 | |
27e2564a | 576 | static void |
439f7bc3 AJ |
577 | cb_file_change (cpp_reader *pfile ATTRIBUTE_UNUSED, |
578 | const struct line_map *map) | |
27e2564a NB |
579 | { |
580 | /* Just keep track of current file name. */ | |
21c38ecb | 581 | cur_file = map->to_file; |
27e2564a NB |
582 | } |
583 | ||
bcc5cac9 | 584 | static void |
439f7bc3 | 585 | read_scan_file (char *in_fname, int argc, char **argv) |
05227b51 | 586 | { |
1fac0c33 | 587 | cpp_reader *scan_in; |
f85c14ee NB |
588 | cpp_callbacks *cb; |
589 | cpp_options *options; | |
b3ca463c | 590 | struct fn_decl *fn; |
5793b276 | 591 | int i, strings_processed; |
b3694847 | 592 | struct symbol_list *cur_symbols; |
b3ca463c | 593 | |
dd3f0101 | 594 | obstack_init (&scan_file_obstack); |
7936052f | 595 | |
b4e46cea | 596 | scan_in = cpp_create_reader (CLK_GNUC89, NULL); |
f85c14ee NB |
597 | cb = cpp_get_callbacks (scan_in); |
598 | cb->file_change = cb_file_change; | |
1293daae | 599 | |
cf4ed945 ZW |
600 | /* We are going to be scanning a header file out of its proper context, |
601 | so ignore warnings and errors. */ | |
24538dcb | 602 | options = cpp_get_options (scan_in); |
f85c14ee NB |
603 | options->inhibit_warnings = 1; |
604 | options->inhibit_errors = 1; | |
605 | ||
b4e46cea | 606 | if (! cpp_read_main_file (scan_in, in_fname)) |
151c68c3 NB |
607 | exit (FATAL_EXIT_CODE); |
608 | ||
7b43d104 | 609 | cpp_change_file (scan_in, LC_RENAME, "<built-in>"); |
6e270179 | 610 | cpp_init_builtins (scan_in, true); |
7b43d104 NB |
611 | cpp_change_file (scan_in, LC_RENAME, in_fname); |
612 | ||
613 | /* Process switches after builtins so -D can override them. */ | |
5793b276 NB |
614 | for (i = 0; i < argc; i += strings_processed) |
615 | { | |
c1bad961 NB |
616 | strings_processed = 0; |
617 | if (argv[i][0] == '-') | |
5793b276 | 618 | { |
c1bad961 NB |
619 | if (argv[i][1] == 'I') |
620 | { | |
621 | if (argv[i][2] != '\0') | |
72ecfc60 NB |
622 | { |
623 | strings_processed = 1; | |
624 | add_path (xstrdup (argv[i] + 2), BRACKET, false); | |
625 | } | |
626 | else if (i + 1 != argc) | |
627 | { | |
628 | strings_processed = 2; | |
629 | add_path (xstrdup (argv[i + 1]), BRACKET, false); | |
630 | } | |
c1bad961 NB |
631 | } |
632 | else if (argv[i][1] == 'D') | |
633 | { | |
634 | if (argv[i][2] != '\0') | |
635 | strings_processed = 1, cpp_define (scan_in, argv[i] + 2); | |
72ecfc60 | 636 | else if (i + 1 != argc) |
c1bad961 NB |
637 | strings_processed = 2, cpp_define (scan_in, argv[i + 1]); |
638 | } | |
5793b276 | 639 | } |
5793b276 NB |
640 | |
641 | if (strings_processed == 0) | |
642 | break; | |
643 | } | |
644 | ||
bdee42b1 NB |
645 | if (i < argc) |
646 | cpp_error (scan_in, DL_ERROR, "invalid option `%s'", argv[i]); | |
bdee42b1 | 647 | if (cpp_errors (scan_in)) |
c57a4b7c PB |
648 | exit (FATAL_EXIT_CODE); |
649 | ||
5793b276 NB |
650 | register_include_chains (scan_in, NULL /* sysroot */, NULL /* iprefix */, |
651 | true /* stdinc */, false /* cxx_stdinc */, | |
652 | false /* verbose */); | |
b3ca463c | 653 | |
6d2c2047 | 654 | /* We are scanning a system header, so mark it as such. */ |
614c7d37 | 655 | cpp_make_system_header (scan_in, 1, 0); |
6d2c2047 | 656 | |
cf44ea52 | 657 | scan_decls (scan_in, argc, argv); |
94442062 | 658 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
cf44ea52 | 659 | check_macro_names (scan_in, cur_symbols->names); |
b3ca463c | 660 | |
b3ca463c | 661 | /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. |
0f41302f | 662 | If so, those functions are also required. */ |
b3ca463c PB |
663 | if (special_file_handling == stdio_h |
664 | && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) | |
665 | { | |
26aea073 | 666 | unsigned char getchar_call[] = "getchar();\n"; |
b3ca463c PB |
667 | int seen_filbuf = 0; |
668 | ||
0f41302f | 669 | /* Scan the macro expansion of "getchar();". */ |
0bda4760 | 670 | cpp_push_buffer (scan_in, getchar_call, sizeof(getchar_call) - 1, |
29401c30 | 671 | /* from_stage3 */ true, 1); |
b3ca463c PB |
672 | for (;;) |
673 | { | |
4ed5bcfb | 674 | const cpp_token *t = cpp_get_token (scan_in); |
041c3194 | 675 | |
4ed5bcfb | 676 | if (t->type == CPP_EOF) |
9ba2e1ef | 677 | break; |
4ed5bcfb | 678 | else if (cpp_ideq (t, "_filbuf")) |
b3ca463c PB |
679 | seen_filbuf++; |
680 | } | |
9ba2e1ef | 681 | |
b3ca463c PB |
682 | if (seen_filbuf) |
683 | { | |
684 | int need_filbuf = !SEEN (fn) && !REQUIRED (fn); | |
685 | struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); | |
686 | int need_flsbuf | |
687 | = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); | |
688 | ||
0f41302f | 689 | /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ |
b3ca463c PB |
690 | if (need_filbuf + need_flsbuf) |
691 | { | |
9b3142b3 | 692 | const char *new_list; |
b3ca463c | 693 | if (need_filbuf) |
94442062 | 694 | SET_REQUIRED (fn); |
b3ca463c | 695 | if (need_flsbuf) |
94442062 | 696 | SET_REQUIRED (flsbuf_fn); |
6d2c2047 | 697 | if (need_flsbuf && need_filbuf) |
94442062 PB |
698 | new_list = "_filbuf\0_flsbuf\0"; |
699 | else if (need_flsbuf) | |
700 | new_list = "_flsbuf\0"; | |
701 | else /* if (need_flsbuf) */ | |
702 | new_list = "_filbuf\0"; | |
703 | add_symbols (ANSI_SYMBOL, new_list); | |
b3ca463c PB |
704 | required_unseen_count += need_filbuf + need_flsbuf; |
705 | } | |
706 | } | |
707 | } | |
7936052f | 708 | |
a816c981 | 709 | if (required_unseen_count + partial_count + required_other == 0) |
7936052f PB |
710 | { |
711 | if (verbose) | |
712 | fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); | |
2e3f9f3d | 713 | exit (SUCCESS_EXIT_CODE); |
7936052f | 714 | } |
e9cd0b25 PB |
715 | if (!verbose) |
716 | fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); | |
717 | else | |
718 | { | |
719 | if (required_unseen_count) | |
720 | fprintf (stderr, "%s: %d missing function declarations.\n", | |
721 | inc_filename, required_unseen_count); | |
722 | if (partial_count) | |
723 | fprintf (stderr, "%s: %d non-prototype function declarations.\n", | |
724 | inc_filename, partial_count); | |
e9cd0b25 | 725 | } |
7936052f PB |
726 | } |
727 | ||
bcc5cac9 | 728 | static void |
439f7bc3 | 729 | write_rbrac (void) |
7936052f PB |
730 | { |
731 | struct fn_decl *fn; | |
b3ca463c | 732 | const char *cptr; |
b3694847 | 733 | struct symbol_list *cur_symbols; |
7936052f PB |
734 | |
735 | if (required_unseen_count) | |
b4e21e27 | 736 | { |
b4e21e27 | 737 | #ifdef NO_IMPLICIT_EXTERN_C |
55e2b88e | 738 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
b4e21e27 PB |
739 | #endif |
740 | } | |
7936052f | 741 | |
0f41302f | 742 | /* Now we print out prototypes for those functions that we haven't seen. */ |
94442062 | 743 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 744 | { |
94442062 PB |
745 | int if_was_emitted = 0; |
746 | int name_len; | |
747 | cptr = cur_symbols->names; | |
748 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
749 | { | |
750 | int macro_protect = 0; | |
10b8b0ba | 751 | |
94442062 PB |
752 | if (cur_symbols->flags & MACRO_SYMBOL) |
753 | continue; | |
754 | ||
755 | fn = lookup_std_proto (cptr, name_len); | |
756 | if (fn == NULL || !REQUIRED (fn)) | |
757 | continue; | |
758 | ||
759 | if (!if_was_emitted) | |
760 | { | |
761 | /* what about curses. ??? or _flsbuf/_filbuf ??? */ | |
762 | if (cur_symbols->flags & ANSI_SYMBOL) | |
763 | fprintf (outf, | |
764 | "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); | |
5a3f1ec3 | 765 | else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) |
94442062 PB |
766 | fprintf (outf, |
767 | "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ | |
5a3f1ec3 PB |
768 | ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ |
769 | : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); | |
770 | else if (cur_symbols->flags & XOPEN_SYMBOL) | |
771 | { | |
772 | fprintf (outf, | |
773 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
774 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); | |
775 | } | |
776 | else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) | |
777 | { | |
778 | fprintf (outf, | |
779 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
780 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); | |
781 | } | |
782 | else | |
783 | { | |
784 | fatal ("internal error for function %s", fn->fname); | |
785 | } | |
94442062 PB |
786 | if_was_emitted = 1; |
787 | } | |
10b8b0ba | 788 | |
94442062 PB |
789 | /* In the case of memmove, protect in case the application |
790 | defines it as a macro before including the header. */ | |
791 | if (!strcmp (fn->fname, "memmove") | |
1b4f90cd FF |
792 | || !strcmp (fn->fname, "putc") |
793 | || !strcmp (fn->fname, "getc") | |
94442062 PB |
794 | || !strcmp (fn->fname, "vprintf") |
795 | || !strcmp (fn->fname, "vfprintf") | |
796 | || !strcmp (fn->fname, "vsprintf") | |
25cf40e2 MH |
797 | || !strcmp (fn->fname, "rewinddir") |
798 | || !strcmp (fn->fname, "abort")) | |
94442062 PB |
799 | macro_protect = 1; |
800 | ||
801 | if (macro_protect) | |
802 | fprintf (outf, "#ifndef %s\n", fn->fname); | |
803 | fprintf (outf, "extern %s %s (%s);\n", | |
804 | fn->rtype, fn->fname, fn->params); | |
805 | if (macro_protect) | |
806 | fprintf (outf, "#endif\n"); | |
807 | } | |
808 | if (if_was_emitted) | |
809 | fprintf (outf, | |
810 | "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); | |
7936052f PB |
811 | } |
812 | if (required_unseen_count) | |
b4e21e27 PB |
813 | { |
814 | #ifdef NO_IMPLICIT_EXTERN_C | |
55e2b88e | 815 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
b4e21e27 | 816 | #endif |
b4e21e27 | 817 | } |
7936052f PB |
818 | |
819 | switch (special_file_handling) | |
820 | { | |
b3ca463c | 821 | case errno_h: |
5a3f1ec3 | 822 | if (!seen_errno) |
7936052f PB |
823 | fprintf (outf, "extern int errno;\n"); |
824 | break; | |
5a3f1ec3 PB |
825 | case stdlib_h: |
826 | if (!seen_EXIT_FAILURE) | |
827 | fprintf (outf, "#define EXIT_FAILURE 1\n"); | |
828 | if (!seen_EXIT_SUCCESS) | |
829 | fprintf (outf, "#define EXIT_SUCCESS 0\n"); | |
830 | break; | |
b3ca463c | 831 | case sys_stat_h: |
7936052f PB |
832 | if (!seen_S_ISBLK && seen_S_IFBLK) |
833 | fprintf (outf, | |
834 | "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); | |
835 | if (!seen_S_ISCHR && seen_S_IFCHR) | |
836 | fprintf (outf, | |
837 | "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); | |
838 | if (!seen_S_ISDIR && seen_S_IFDIR) | |
839 | fprintf (outf, | |
840 | "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); | |
841 | if (!seen_S_ISFIFO && seen_S_IFIFO) | |
842 | fprintf (outf, | |
843 | "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); | |
844 | if (!seen_S_ISLNK && seen_S_IFLNK) | |
845 | fprintf (outf, | |
846 | "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); | |
847 | if (!seen_S_ISREG && seen_S_IFREG) | |
848 | fprintf (outf, | |
849 | "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); | |
850 | break; | |
9e04c65a KG |
851 | |
852 | default: | |
853 | break; | |
7936052f PB |
854 | } |
855 | ||
7936052f PB |
856 | } |
857 | ||
7936052f PB |
858 | /* Returns 1 iff the file is properly protected from multiple inclusion: |
859 | #ifndef PROTECT_NAME | |
860 | #define PROTECT_NAME | |
861 | #endif | |
862 | ||
863 | */ | |
864 | ||
0f41302f | 865 | #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF) |
c2b6b9a1 | 866 | #define INF_UNGET(c) ((c)!=EOF && inf_ptr--) |
05227b51 | 867 | |
bcc5cac9 | 868 | static int |
439f7bc3 | 869 | inf_skip_spaces (int c) |
05227b51 PB |
870 | { |
871 | for (;;) | |
872 | { | |
873 | if (c == ' ' || c == '\t') | |
c2b6b9a1 | 874 | c = INF_GET (); |
05227b51 PB |
875 | else if (c == '/') |
876 | { | |
c2b6b9a1 | 877 | c = INF_GET (); |
05227b51 PB |
878 | if (c != '*') |
879 | { | |
081f5e7e | 880 | (void) INF_UNGET (c); |
05227b51 PB |
881 | return '/'; |
882 | } | |
c2b6b9a1 | 883 | c = INF_GET (); |
05227b51 PB |
884 | for (;;) |
885 | { | |
886 | if (c == EOF) | |
887 | return EOF; | |
888 | else if (c != '*') | |
889 | { | |
890 | if (c == '\n') | |
891 | source_lineno++, lineno++; | |
892 | c = INF_GET (); | |
893 | } | |
c2b6b9a1 RS |
894 | else if ((c = INF_GET ()) == '/') |
895 | return INF_GET (); | |
05227b51 PB |
896 | } |
897 | } | |
898 | else | |
899 | break; | |
900 | } | |
901 | return c; | |
902 | } | |
903 | ||
0f41302f | 904 | /* Read into STR from inf_buffer upto DELIM. */ |
05227b51 | 905 | |
bcc5cac9 | 906 | static int |
439f7bc3 | 907 | inf_read_upto (sstring *str, int delim) |
05227b51 PB |
908 | { |
909 | int ch; | |
910 | for (;;) | |
911 | { | |
912 | ch = INF_GET (); | |
913 | if (ch == EOF || ch == delim) | |
914 | break; | |
c2b6b9a1 | 915 | SSTRING_PUT (str, ch); |
05227b51 | 916 | } |
c2b6b9a1 | 917 | MAKE_SSTRING_SPACE (str, 1); |
05227b51 PB |
918 | *str->ptr = 0; |
919 | return ch; | |
920 | } | |
921 | ||
bcc5cac9 | 922 | static int |
439f7bc3 | 923 | inf_scan_ident (sstring *s, int c) |
05227b51 PB |
924 | { |
925 | s->ptr = s->base; | |
0df6c2c7 | 926 | if (ISIDST (c)) |
05227b51 PB |
927 | { |
928 | for (;;) | |
929 | { | |
c2b6b9a1 | 930 | SSTRING_PUT (s, c); |
05227b51 | 931 | c = INF_GET (); |
0df6c2c7 | 932 | if (c == EOF || !(ISIDNUM (c))) |
05227b51 PB |
933 | break; |
934 | } | |
935 | } | |
c2b6b9a1 | 936 | MAKE_SSTRING_SPACE (s, 1); |
05227b51 PB |
937 | *s->ptr = 0; |
938 | return c; | |
939 | } | |
940 | ||
941 | /* Returns 1 if the file is correctly protected against multiple | |
942 | inclusion, setting *ifndef_line to the line number of the initial #ifndef | |
943 | and setting *endif_line to the final #endif. | |
0f41302f | 944 | Otherwise return 0. */ |
05227b51 | 945 | |
bcc5cac9 | 946 | static int |
439f7bc3 | 947 | check_protection (int *ifndef_line, int *endif_line) |
7936052f PB |
948 | { |
949 | int c; | |
950 | int if_nesting = 1; /* Level of nesting of #if's */ | |
951 | char *protect_name = NULL; /* Identifier following initial #ifndef */ | |
952 | int define_seen = 0; | |
953 | ||
0f41302f | 954 | /* Skip initial white space (including comments). */ |
7936052f PB |
955 | for (;; lineno++) |
956 | { | |
05227b51 | 957 | c = inf_skip_spaces (' '); |
7936052f PB |
958 | if (c == EOF) |
959 | return 0; | |
960 | if (c != '\n') | |
961 | break; | |
962 | } | |
963 | if (c != '#') | |
964 | return 0; | |
05227b51 | 965 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 966 | if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) |
7936052f PB |
967 | return 0; |
968 | ||
0f41302f | 969 | /* So far so good: We've seen an initial #ifndef. */ |
7936052f | 970 | *ifndef_line = lineno; |
05227b51 | 971 | c = inf_scan_ident (&buf, inf_skip_spaces (c)); |
c2b6b9a1 | 972 | if (SSTRING_LENGTH (&buf) == 0 || c == EOF) |
7936052f | 973 | return 0; |
1bc61c04 | 974 | protect_name = xstrdup (buf.base); |
7936052f | 975 | |
081f5e7e | 976 | (void) INF_UNGET (c); |
05227b51 | 977 | c = inf_read_upto (&buf, '\n'); |
7936052f PB |
978 | if (c == EOF) |
979 | return 0; | |
980 | lineno++; | |
981 | ||
982 | for (;;) | |
983 | { | |
c2b6b9a1 | 984 | c = inf_skip_spaces (' '); |
7936052f PB |
985 | if (c == EOF) |
986 | return 0; | |
987 | if (c == '\n') | |
988 | { | |
989 | lineno++; | |
990 | continue; | |
991 | } | |
992 | if (c != '#') | |
993 | goto skip_to_eol; | |
05227b51 | 994 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 995 | if (SSTRING_LENGTH (&buf) == 0) |
7936052f PB |
996 | ; |
997 | else if (!strcmp (buf.base, "ifndef") | |
998 | || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) | |
999 | { | |
1000 | if_nesting++; | |
1001 | } | |
1002 | else if (!strcmp (buf.base, "endif")) | |
1003 | { | |
1004 | if_nesting--; | |
1005 | if (if_nesting == 0) | |
1006 | break; | |
1007 | } | |
1008 | else if (!strcmp (buf.base, "else")) | |
1009 | { | |
1010 | if (if_nesting == 1) | |
1011 | return 0; | |
1012 | } | |
1013 | else if (!strcmp (buf.base, "define")) | |
1014 | { | |
05227b51 PB |
1015 | c = inf_skip_spaces (c); |
1016 | c = inf_scan_ident (&buf, c); | |
c2b6b9a1 | 1017 | if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) |
7936052f PB |
1018 | define_seen = 1; |
1019 | } | |
1020 | skip_to_eol: | |
1021 | for (;;) | |
1022 | { | |
1023 | if (c == '\n' || c == EOF) | |
1024 | break; | |
c2b6b9a1 | 1025 | c = INF_GET (); |
7936052f PB |
1026 | } |
1027 | if (c == EOF) | |
1028 | return 0; | |
1029 | lineno++; | |
1030 | } | |
1031 | ||
1032 | if (!define_seen) | |
1033 | return 0; | |
1034 | *endif_line = lineno; | |
0f41302f | 1035 | /* Skip final white space (including comments). */ |
7936052f PB |
1036 | for (;;) |
1037 | { | |
05227b51 | 1038 | c = inf_skip_spaces (' '); |
7936052f PB |
1039 | if (c == EOF) |
1040 | break; | |
1041 | if (c != '\n') | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | return 1; | |
1046 | } | |
1047 | ||
439f7bc3 | 1048 | extern int main (int, char **); |
bcc5cac9 | 1049 | |
7936052f | 1050 | int |
439f7bc3 | 1051 | main (int argc, char **argv) |
7936052f | 1052 | { |
05227b51 PB |
1053 | int inf_fd; |
1054 | struct stat sbuf; | |
7936052f | 1055 | int c; |
9870475c JL |
1056 | #ifdef FIXPROTO_IGNORE_LIST |
1057 | int i; | |
1058 | #endif | |
1059 | const char *cptr; | |
7936052f | 1060 | int ifndef_line; |
05227b51 PB |
1061 | int endif_line; |
1062 | long to_read; | |
c2b6b9a1 | 1063 | long int inf_size; |
b3694847 | 1064 | struct symbol_list *cur_symbols; |
7936052f PB |
1065 | |
1066 | if (argv[0] && argv[0][0]) | |
9bbd1091 | 1067 | { |
b3694847 | 1068 | char *p; |
9bbd1091 RS |
1069 | |
1070 | progname = 0; | |
1071 | for (p = argv[0]; *p; p++) | |
dd3f0101 KH |
1072 | if (*p == '/') |
1073 | progname = p; | |
9bbd1091 RS |
1074 | progname = progname ? progname+1 : argv[0]; |
1075 | } | |
7936052f PB |
1076 | |
1077 | if (argc < 4) | |
1078 | { | |
b3ca463c | 1079 | fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", |
7936052f | 1080 | progname); |
2e3f9f3d | 1081 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1082 | } |
1083 | ||
1084 | inc_filename = argv[1]; | |
1085 | inc_filename_length = strlen (inc_filename); | |
b3ca463c PB |
1086 | |
1087 | #ifdef FIXPROTO_IGNORE_LIST | |
1088 | for (i = 0; files_to_ignore[i] != NULL; i++) | |
1089 | { | |
c083a819 | 1090 | const char *const ignore_name = files_to_ignore[i]; |
b3ca463c PB |
1091 | int ignore_len = strlen (ignore_name); |
1092 | if (strncmp (inc_filename, ignore_name, ignore_len) == 0) | |
1093 | { | |
1094 | if (ignore_name[ignore_len-1] == '/' | |
1095 | || inc_filename[ignore_len] == '\0') | |
1096 | { | |
1097 | if (verbose) | |
1098 | fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); | |
2e3f9f3d | 1099 | exit (SUCCESS_EXIT_CODE); |
b3ca463c PB |
1100 | } |
1101 | } | |
dd3f0101 | 1102 | |
b3ca463c PB |
1103 | } |
1104 | #endif | |
1105 | ||
7936052f | 1106 | if (strcmp (inc_filename, "sys/stat.h") == 0) |
b3ca463c | 1107 | special_file_handling = sys_stat_h; |
7936052f | 1108 | else if (strcmp (inc_filename, "errno.h") == 0) |
5a3f1ec3 PB |
1109 | special_file_handling = errno_h, required_other++; |
1110 | else if (strcmp (inc_filename, "stdlib.h") == 0) | |
1111 | special_file_handling = stdlib_h, required_other+=2; | |
b3ca463c PB |
1112 | else if (strcmp (inc_filename, "stdio.h") == 0) |
1113 | special_file_handling = stdio_h; | |
1114 | include_entry = std_include_table; | |
1115 | while (include_entry->name != NULL | |
93b9cce7 | 1116 | && ((strcmp (include_entry->name, CONTINUED) == 0) |
94442062 | 1117 | || strcmp (inc_filename, include_entry->name) != 0)) |
b3ca463c PB |
1118 | include_entry++; |
1119 | ||
94442062 PB |
1120 | if (include_entry->name != NULL) |
1121 | { | |
c083a819 | 1122 | const struct std_include_entry *entry; |
94442062 PB |
1123 | cur_symbol_table_size = 0; |
1124 | for (entry = include_entry; ;) | |
1125 | { | |
9e04c65a KG |
1126 | if (entry->flags) |
1127 | add_symbols (entry->flags, entry->names); | |
94442062 | 1128 | entry++; |
ceb45eb8 | 1129 | if (!entry->name || strcmp (entry->name, CONTINUED) != 0) |
94442062 PB |
1130 | break; |
1131 | } | |
1132 | } | |
1133 | else | |
1134 | symbol_table[0].names = NULL; | |
b3ca463c | 1135 | |
dd3f0101 | 1136 | /* Count and mark the prototypes required for this include file. */ |
94442062 | 1137 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 1138 | { |
94442062 PB |
1139 | int name_len; |
1140 | if (cur_symbols->flags & MACRO_SYMBOL) | |
1141 | continue; | |
1142 | cptr = cur_symbols->names; | |
1143 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
1144 | { | |
1145 | struct fn_decl *fn = lookup_std_proto (cptr, name_len); | |
1146 | required_unseen_count++; | |
1147 | if (fn == NULL) | |
1148 | fprintf (stderr, "Internal error: No prototype for %s\n", cptr); | |
1149 | else | |
1150 | SET_REQUIRED (fn); | |
1151 | } | |
7936052f | 1152 | } |
7936052f | 1153 | |
b3ca463c | 1154 | read_scan_file (argv[2], argc - 4, argv + 4); |
7936052f | 1155 | |
05227b51 PB |
1156 | inf_fd = open (argv[2], O_RDONLY, 0666); |
1157 | if (inf_fd < 0) | |
7936052f PB |
1158 | { |
1159 | fprintf (stderr, "%s: Cannot open '%s' for reading -", | |
1160 | progname, argv[2]); | |
1161 | perror (NULL); | |
2e3f9f3d | 1162 | exit (FATAL_EXIT_CODE); |
7936052f | 1163 | } |
05227b51 PB |
1164 | if (fstat (inf_fd, &sbuf) < 0) |
1165 | { | |
1166 | fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); | |
1167 | perror (NULL); | |
2e3f9f3d | 1168 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1169 | } |
1170 | inf_size = sbuf.st_size; | |
703ad42b | 1171 | inf_buffer = xmalloc (inf_size + 2); |
05227b51 PB |
1172 | inf_ptr = inf_buffer; |
1173 | ||
1174 | to_read = inf_size; | |
1175 | while (to_read > 0) | |
1176 | { | |
1177 | long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); | |
1178 | if (i < 0) | |
1179 | { | |
1180 | fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); | |
1181 | perror (NULL); | |
2e3f9f3d | 1182 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1183 | } |
1184 | if (i == 0) | |
1185 | { | |
1186 | inf_size -= to_read; | |
1187 | break; | |
1188 | } | |
1189 | to_read -= i; | |
1190 | } | |
1191 | ||
1192 | close (inf_fd); | |
7936052f | 1193 | |
e1c12209 DR |
1194 | /* Inf_size may have changed if read was short (as on VMS) */ |
1195 | inf_buffer[inf_size] = '\n'; | |
1196 | inf_buffer[inf_size + 1] = '\0'; | |
1197 | inf_limit = inf_buffer + inf_size; | |
1198 | ||
0f41302f | 1199 | /* If file doesn't end with '\n', add one. */ |
c2b6b9a1 RS |
1200 | if (inf_limit > inf_buffer && inf_limit[-1] != '\n') |
1201 | inf_limit++; | |
1202 | ||
9bbd1091 | 1203 | unlink (argv[3]); |
7936052f PB |
1204 | outf = fopen (argv[3], "w"); |
1205 | if (outf == NULL) | |
1206 | { | |
1207 | fprintf (stderr, "%s: Cannot open '%s' for writing -", | |
1208 | progname, argv[3]); | |
1209 | perror (NULL); | |
2e3f9f3d | 1210 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1211 | } |
1212 | ||
05227b51 PB |
1213 | lineno = 1; |
1214 | ||
1215 | if (check_protection (&ifndef_line, &endif_line)) | |
7936052f | 1216 | { |
7936052f PB |
1217 | lbrac_line = ifndef_line+1; |
1218 | rbrac_line = endif_line; | |
1219 | } | |
1220 | else | |
1221 | { | |
1222 | lbrac_line = 1; | |
1223 | rbrac_line = -1; | |
1224 | } | |
1225 | ||
0f41302f | 1226 | /* Reset input file. */ |
05227b51 | 1227 | inf_ptr = inf_buffer; |
7936052f PB |
1228 | lineno = 1; |
1229 | ||
1230 | for (;;) | |
1231 | { | |
1232 | if (lineno == lbrac_line) | |
1233 | write_lbrac (); | |
1234 | if (lineno == rbrac_line) | |
1235 | write_rbrac (); | |
1236 | for (;;) | |
1237 | { | |
1238 | struct fn_decl *fn; | |
c2b6b9a1 | 1239 | c = INF_GET (); |
7936052f PB |
1240 | if (c == EOF) |
1241 | break; | |
0df6c2c7 | 1242 | if (ISIDST (c)) |
7936052f | 1243 | { |
05227b51 | 1244 | c = inf_scan_ident (&buf, c); |
081f5e7e | 1245 | (void) INF_UNGET (c); |
7936052f | 1246 | fputs (buf.base, outf); |
b3ca463c | 1247 | fn = lookup_std_proto (buf.base, strlen (buf.base)); |
7936052f PB |
1248 | /* We only want to edit the declaration matching the one |
1249 | seen by scan-decls, as there can be multiple | |
0f41302f | 1250 | declarations, selected by #ifdef __STDC__ or whatever. */ |
7936052f PB |
1251 | if (fn && fn->partial && fn->partial->line_seen == lineno) |
1252 | { | |
05227b51 | 1253 | c = inf_skip_spaces (' '); |
7936052f PB |
1254 | if (c == EOF) |
1255 | break; | |
1256 | if (c == '(') | |
1257 | { | |
05227b51 | 1258 | c = inf_skip_spaces (' '); |
7936052f PB |
1259 | if (c == ')') |
1260 | { | |
1261 | fprintf (outf, " _PARAMS((%s))", fn->params); | |
1262 | } | |
1263 | else | |
1264 | { | |
1265 | putc ('(', outf); | |
081f5e7e | 1266 | (void) INF_UNGET (c); |
7936052f PB |
1267 | } |
1268 | } | |
1269 | else | |
e9cd0b25 | 1270 | fprintf (outf, " %c", c); |
7936052f PB |
1271 | } |
1272 | } | |
1273 | else | |
05227b51 PB |
1274 | { |
1275 | putc (c, outf); | |
1276 | if (c == '\n') | |
1277 | break; | |
1278 | } | |
7936052f PB |
1279 | } |
1280 | if (c == EOF) | |
1281 | break; | |
1282 | lineno++; | |
1283 | } | |
1284 | if (rbrac_line < 0) | |
1285 | write_rbrac (); | |
1286 | ||
7936052f PB |
1287 | fclose (outf); |
1288 | ||
1289 | return 0; | |
1290 | } | |
b3ca463c | 1291 | \f |
487a6e06 KG |
1292 | |
1293 | static void | |
439f7bc3 | 1294 | v_fatal (const char *str, va_list ap) |
b3ca463c | 1295 | { |
ebc27362 | 1296 | fprintf (stderr, "%s: %s: ", progname, inc_filename); |
487a6e06 | 1297 | vfprintf (stderr, str, ap); |
b3ca463c | 1298 | fprintf (stderr, "\n"); |
dd3f0101 | 1299 | |
3efba298 | 1300 | exit (FATAL_EXIT_CODE); |
b3ca463c PB |
1301 | } |
1302 | ||
bcc5cac9 | 1303 | static void |
e34d07f2 | 1304 | fatal (const char *str, ...) |
c57a4b7c | 1305 | { |
e34d07f2 KG |
1306 | va_list ap; |
1307 | ||
1308 | va_start (ap, str); | |
a315b955 | 1309 | v_fatal (str, ap); |
e34d07f2 | 1310 | va_end (ap); |
487a6e06 | 1311 | } |