diff options
Diffstat (limited to 'gcc/fix-header.c')
| -rw-r--r-- | gcc/fix-header.c | 1336 |
1 files changed, 0 insertions, 1336 deletions
diff --git a/gcc/fix-header.c b/gcc/fix-header.c deleted file mode 100644 index 2a51f53e138..00000000000 --- a/gcc/fix-header.c +++ /dev/null @@ -1,1336 +0,0 @@ -/* fix-header.c - Make C header file suitable for C++. - Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. - -This program is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* This program massages a system include file (such as stdio.h), - into a form more conforming with ANSI/POSIX, and more suitable for C++: - - * extern "C" { ... } braces are added (inside #ifndef __cplusplus), - if they seem to be needed. These prevent C++ compilers from name - mangling the functions inside the braces. - - * If an old-style incomplete function declaration is seen (without - an argument list), and it is a "standard" function listed in - the file sys-protos.h (and with a non-empty argument list), then - the declaration is converted to a complete prototype by replacing - the empty parameter list with the argument lust from sys-protos.h. - - * The program can be given a list of (names of) required standard - functions (such as fclose for stdio.h). If a required function - is not seen in the input, then a prototype for it will be - written to the output. - - * If all of the non-comment code of the original file is protected - against multiple inclusion: - #ifndef FOO - #define FOO - <body of include file> - #endif - then extra matter added to the include file is placed inside the <body>. - - * If the input file is OK (nothing needs to be done); - the output file is not written (nor removed if it exists). - - There are also some special actions that are done for certain - well-known standard include files: - - * If argv[1] is "sys/stat.h", the Posix.1 macros - S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if - they were missing, and the corresponding "traditional" S_IFxxx - macros were defined. - - * If argv[1] is "errno.h", errno is declared if it was missing. - - * TODO: The input file should be read complete into memory, because: - a) it needs to be scanned twice anyway, and - b) it would be nice to allow update in place. - - Usage: - fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] - where: - * FOO.H is the relative file name of the include file, - as it would be #include'd by a C file. (E.g. stdio.h) - * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h) - * OUTFILE.H is the full pathname for where to write the output file, - if anything needs to be done. (e.g. ./include/stdio.h) - * OPTIONS are such as you would pass to cpp. - - Written by Per Bothner <bothner@cygnus.com>, July 1993. */ - -#include <stdio.h> -#include <ctype.h> -#include "hconfig.h" -#include "obstack.h" -#include "scan.h" -#include "cpplib.h" -#ifndef O_RDONLY -#define O_RDONLY 0 -#endif - -#if !__STDC__ -#define const /* nothing */ -#endif - -sstring buf; - -int verbose = 0; -int partial_count = 0; -int warnings = 0; - -/* We no longer need to add extern "C", because cpp implicitly - forces the standard include files to be treated as C. */ -/*#define ADD_MISSING_EXTERN_C 1 */ - -#if ADD_MISSING_EXTERN_C -int missing_extern_C_count = 0; -#endif - -#include "xsys-protos.h" - -#ifdef FIXPROTO_IGNORE_LIST -/* This is a currently unused feature. */ - -/* List of files and directories to ignore. - A directory name (ending in '/') means ignore anything in that - directory. (It might be more efficient to do directory pruning - earlier in fixproto, but this is simpler and easier to customize.) */ - -static char *files_to_ignore[] = { - "X11/", - FIXPROTO_IGNORE_LIST - 0 -}; -#endif - -char *inf_buffer; -char *inf_limit; -char *inf_ptr; - -/* Certain standard files get extra treatment */ - -enum special_file -{ - no_special, - errno_h, - stdio_h, - stdlib_h, - sys_stat_h -}; - -/* A NAMELIST is a sequence of names, separated by '\0', and terminated - by an empty name (i.e. by "\0\0"). */ - -typedef const char* namelist; - -/* The following macros provide the bits for symbol_flags. */ -typedef int symbol_flags; - -/* Used to mark names defined in the ANSI/ISO C standard. */ -#define ANSI_SYMBOL 1 - -/* Used to mark names defined in the Posix.1 or Posix.2 standard. */ -#define POSIX1_SYMBOL 2 -#define POSIX2_SYMBOL 4 - -/* Used to mark names defined in X/Open Portability Guide. */ -#define XOPEN_SYMBOL 8 -/* Used to mark names defined in X/Open UNIX Extensions. */ -#define XOPEN_EXTENDED_SYMBOL 16 - -/* Used to indicate names that are not functions */ -#define MACRO_SYMBOL 512 - -struct symbol_list { - symbol_flags flags; - namelist names; -}; - -#define SYMBOL_TABLE_SIZE 10 -struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; -int cur_symbol_table_size; - -void -add_symbols (flags, names) - symbol_flags flags; - namelist names; -{ - symbol_table[cur_symbol_table_size].flags = flags; - symbol_table[cur_symbol_table_size].names = names; - cur_symbol_table_size++; - if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) - fatal ("too many calls to add_symbols"); - symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ -} - -struct std_include_entry { - const char *name; - symbol_flags flags; - namelist names; -}; - -const char NONE[] = ""; /* The empty namelist. */ - -/* Special name to indicate a continuation line in std_include_table. */ -const char CONTINUED[] = ""; - -struct std_include_entry *include_entry; - -struct std_include_entry std_include_table [] = { - { "ctype.h", ANSI_SYMBOL, - "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ -isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, - - { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, - - { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, - - /* ANSI_SYMBOL is wrong, but ... */ - { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ -mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ -scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ -waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ -wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, - - { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, - - /* Maybe also "getgrent fgetgrent setgrent endgrent" */ - { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, - -/*{ "limit.h", ... provided by gcc }, */ - - { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, - - { "math.h", ANSI_SYMBOL, - "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ -fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ -tan\0tanh\0" }, - - { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, - - { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, - - /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ - { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, - - /* Left out signal() - its prototype is too complex for us! - Also left out "sigaction sigaddset sigdelset sigemptyset - sigfillset sigismember sigpending sigprocmask sigsuspend" - because these need sigset_t or struct sigaction. - Most systems that provide them will also declare them. */ - { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, - - { "stdio.h", ANSI_SYMBOL, - "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ -fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ -fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\00perror\0popen\0\ -printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ -setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ -tmpnam\0ungetc\0" }, - { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, - { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ -/* Should perhaps also handle NULL, EOF, ... ? */ - - /* "div ldiv", - ignored because these depend on div_t, ldiv_t - ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" - Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. - Should perhaps also add NULL */ - { "stdlib.h", ANSI_SYMBOL, - "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ -exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ -srand\0strtod\0strtol\0strtoul\0system\0" }, - { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, - - { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ -strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ -strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ -strtok\0strxfrm\0" }, -/* Should perhaps also add NULL and size_t */ - - { "strings.h", XOPEN_EXTENDED_SYMBOL, - "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, - - { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, - - /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines - ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, - and many systems do have <sys/ioctl.h> but not <strops.h>. */ - { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, - - { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, - - { "sys/stat.h", POSIX1_SYMBOL, - "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, - { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, - "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ -S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, - { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, - -#if 0 -/* How do we handle fd_set? */ - { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, - { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, -#endif - - { "sys/times.h", POSIX1_SYMBOL, "times\0" }, - /* "sys/types.h" add types (not in old g++-include) */ - - { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, - - { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, - { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, - "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ -WTERMSIG\0WNOHANG\0WNOTRACED\0" }, - - { "tar.h", POSIX1_SYMBOL, NONE }, - - { "termios.h", POSIX1_SYMBOL, - "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, - - { "time.h", ANSI_SYMBOL, - "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, - - { "unistd.h", POSIX1_SYMBOL, - "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ -dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ -getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ -getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ -setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ -ttyname\0unlink\0write\0" }, - { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, - { CONTINUED, XOPEN_EXTENDED_SYMBOL, - "lockf\0gethostid\0gethostname\0readlink\0" }, - - { "utime.h", POSIX1_SYMBOL, "utime\0" }, - - { NULL, 0, NONE } -}; - -enum special_file special_file_handling = no_special; - -/* They are set if the corresponding macro has been seen. */ -/* The following are only used when handling sys/stat.h */ -int seen_S_IFBLK = 0, seen_S_ISBLK = 0; -int seen_S_IFCHR = 0, seen_S_ISCHR = 0; -int seen_S_IFDIR = 0, seen_S_ISDIR = 0; -int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; -int seen_S_IFLNK = 0, seen_S_ISLNK = 0; -int seen_S_IFREG = 0, seen_S_ISREG = 0; -/* The following are only used when handling errno.h */ -int seen_errno = 0; -/* The following are only used when handling stdlib.h */ -int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; - -/* Wrapper around free, to avoid prototype clashes. */ - -void -xfree (ptr) - char *ptr; -{ - free (ptr); -} - -/* Avoid error if config defines abort as fancy_abort. - It's not worth "really" implementing this because ordinary - compiler users never run fix-header. */ - -void -fancy_abort () -{ - abort (); -} - -#define obstack_chunk_alloc xmalloc -#define obstack_chunk_free xfree -struct obstack scan_file_obstack; - -/* NOTE: If you edit this, also edit gen-protos.c !! */ -struct fn_decl * -lookup_std_proto (name, name_length) - const char *name; - int name_length; -{ - int i = hashf (name, name_length, HASH_SIZE); - int i0 = i; - for (;;) - { - struct fn_decl *fn; - if (hash_tab[i] == 0) - return NULL; - fn = &std_protos[hash_tab[i]]; - if (strlen (fn->fname) == name_length - && strncmp (fn->fname, name, name_length) == 0) - return fn; - i = (i+1) % HASH_SIZE; - if (i == i0) - abort (); - } -} - -char *inc_filename; -int inc_filename_length; -char *progname = "fix-header"; -FILE *outf; -sstring line; - -int lbrac_line, rbrac_line; - -int required_unseen_count = 0; -int required_other = 0; - -void -write_lbrac () -{ - -#if ADD_MISSING_EXTERN_C - if (missing_extern_C_count + required_unseen_count > 0) - fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); -#endif - - if (partial_count) - { - fprintf (outf, "#ifndef _PARAMS\n"); - fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); - fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); - fprintf (outf, "#else\n"); - fprintf (outf, "#define _PARAMS(ARGS) ()\n"); - fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); - } -} - -struct partial_proto -{ - struct partial_proto *next; - char *fname; /* name of function */ - char *rtype; /* return type */ - struct fn_decl *fn; - int line_seen; -}; - -struct partial_proto *partial_proto_list = NULL; - -struct partial_proto required_dummy_proto, seen_dummy_proto; -#define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) -#define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) -#define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) -#define SEEN(FN) ((FN)->partial == &seen_dummy_proto) - -void -recognized_macro (fname) - char *fname; -{ - /* The original include file defines fname as a macro. */ - struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); - - /* Since fname is a macro, don't require a prototype for it. */ - if (fn) - { - if (REQUIRED (fn)) - required_unseen_count--; - SET_SEEN (fn); - } - - switch (special_file_handling) - { - case errno_h: - if (strcmp (fname, "errno") == 0 && !seen_errno) - seen_errno = 1, required_other--; - break; - case stdlib_h: - if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE) - seen_EXIT_FAILURE = 1, required_other--; - if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS) - seen_EXIT_SUCCESS = 1, required_other--; - break; - case sys_stat_h: - if (fname[0] == 'S' && fname[1] == '_') - { - if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; - else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; - else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; - else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; - else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; - else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; - else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; - else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; - else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; - else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; - else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; - else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; - } - } -} - -void -recognized_extern (name, name_length, type, type_length) - char *name; - char *type; - int name_length, type_length; -{ - switch (special_file_handling) - { - case errno_h: - if (strcmp (name, "errno") == 0 && !seen_errno) - seen_errno = 1, required_other--; - break; - } -} - -/* Called by scan_decls if it saw a function definition for a function - named FNAME, with return type RTYPE, and argument list ARGS, - in source file FILE_SEEN on line LINE_SEEN. - KIND is 'I' for an inline function; - 'F' if a normal function declaration preceded by 'extern "C"' - (or nested inside 'extern "C"' braces); or - 'f' for other function declarations. */ - -void -recognized_function (fname, fname_length, - kind, rtype, rtype_length, - have_arg_list, file_seen, line_seen) - char *fname; - int fname_length; - int kind; /* One of 'f' 'F' or 'I' */ - char *rtype; - int rtype_length; - int have_arg_list; - char *file_seen; - int line_seen; -{ - struct partial_proto *partial; - int i; - struct fn_decl *fn; -#if ADD_MISSING_EXTERN_C - if (kind == 'f') - missing_extern_C_count++; -#endif - - fn = lookup_std_proto (fname, fname_length); - - /* Remove the function from the list of required function. */ - if (fn) - { - if (REQUIRED (fn)) - required_unseen_count--; - SET_SEEN (fn); - } - - /* If we have a full prototype, we're done. */ - if (have_arg_list) - return; - - if (kind == 'I') /* don't edit inline function */ - return; - - /* If the partial prototype was included from some other file, - we don't need to patch it up (in this run). */ - i = strlen (file_seen); - if (i < inc_filename_length - || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) - return; - - if (fn == NULL) - return; - if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0) - return; - - /* We only have a partial function declaration, - so remember that we have to add a complete prototype. */ - partial_count++; - partial = (struct partial_proto*) - obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); - partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1); - bcopy (fname, partial->fname, fname_length); - partial->fname[fname_length] = 0; - partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1); - sprintf (partial->rtype, "%.*s", rtype_length, rtype); - partial->line_seen = line_seen; - partial->fn = fn; - fn->partial = partial; - partial->next = partial_proto_list; - partial_proto_list = partial; - if (verbose) - { - fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", - inc_filename, partial->fname); - } -} - -/* For any name in NAMES that is defined as a macro, - call recognized_macro on it. */ - -void -check_macro_names (pfile, names) - struct parse_file *pfile; - namelist names; -{ - while (*names) - { - if (cpp_lookup (pfile, names, -1, -1)) - recognized_macro (names); - names += strlen (names) + 1; - } -} - -void -read_scan_file (in_fname, argc, argv) - char *in_fname; - int argc; - char **argv; -{ - cpp_reader scan_in; - cpp_options scan_options; - struct fn_decl *fn; - int i; - register struct symbol_list *cur_symbols; - - obstack_init (&scan_file_obstack); - - init_parse_file (&scan_in); - scan_in.data = &scan_options; - init_parse_options (&scan_options); - i = cpp_handle_options (&scan_in, argc, argv); - if (i < argc) - fatal ("Invalid option `%s'", argv[i]); - push_parse_file (&scan_in, in_fname); - CPP_OPTIONS (&scan_in)->no_line_commands = 1; - - scan_decls (&scan_in, argc, argv); - for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) - check_macro_names (&scan_in, cur_symbols->names); - - if (verbose && (scan_in.errors + warnings) > 0) - fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n", - inc_filename, scan_in.errors, warnings); - if (scan_in.errors) - exit (0); - - /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. - If so, those functions are also required. */ - if (special_file_handling == stdio_h - && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) - { - static char getchar_call[] = "getchar();"; - cpp_buffer *buf = - cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1); - int old_written = CPP_WRITTEN (&scan_in); - int seen_filbuf = 0; - - /* Scan the macro expansion of "getchar();". */ - for (;;) - { - enum cpp_token token = cpp_get_token (&scan_in); - int length = CPP_WRITTEN (&scan_in) - old_written; - CPP_SET_WRITTEN (&scan_in, old_written); - if (token == CPP_EOF) /* Should not happen ... */ - break; - if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf) - { - cpp_pop_buffer (&scan_in); - break; - } - if (token == CPP_NAME && length == 7 - && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0) - seen_filbuf++; - } - if (seen_filbuf) - { - int need_filbuf = !SEEN (fn) && !REQUIRED (fn); - struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); - int need_flsbuf - = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); - - /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ - if (need_filbuf + need_flsbuf) - { - char *new_list; - if (need_filbuf) - SET_REQUIRED (fn); - if (need_flsbuf) - SET_REQUIRED (flsbuf_fn); - if (need_flsbuf + need_filbuf == 2) - new_list = "_filbuf\0_flsbuf\0"; - else if (need_flsbuf) - new_list = "_flsbuf\0"; - else /* if (need_flsbuf) */ - new_list = "_filbuf\0"; - add_symbols (ANSI_SYMBOL, new_list); - required_unseen_count += need_filbuf + need_flsbuf; - } - } - } - - if (required_unseen_count + partial_count + required_other -#if ADD_MISSING_EXTERN_C - + missing_extern_C_count -#endif - == 0) - { - if (verbose) - fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); - exit (0); - } - if (!verbose) - fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); - else - { - if (required_unseen_count) - fprintf (stderr, "%s: %d missing function declarations.\n", - inc_filename, required_unseen_count); - if (partial_count) - fprintf (stderr, "%s: %d non-prototype function declarations.\n", - inc_filename, partial_count); -#if ADD_MISSING_EXTERN_C - if (missing_extern_C_count) - fprintf (stderr, - "%s: %d declarations not protected by extern \"C\".\n", - inc_filename, missing_extern_C_count); -#endif - } -} - -void -write_rbrac () -{ - struct fn_decl *fn; - const char *cptr; - register struct symbol_list *cur_symbols; - - if (required_unseen_count) - { -#ifdef NO_IMPLICIT_EXTERN_C - fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); -#endif - } - - /* Now we print out prototypes for those functions that we haven't seen. */ - for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) - { - int if_was_emitted = 0; - int name_len; - cptr = cur_symbols->names; - for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) - { - int macro_protect = 0; - - if (cur_symbols->flags & MACRO_SYMBOL) - continue; - - fn = lookup_std_proto (cptr, name_len); - if (fn == NULL || !REQUIRED (fn)) - continue; - - if (!if_was_emitted) - { -/* what about curses. ??? or _flsbuf/_filbuf ??? */ - if (cur_symbols->flags & ANSI_SYMBOL) - fprintf (outf, - "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); - else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) - fprintf (outf, - "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ - ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ - : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); - else if (cur_symbols->flags & XOPEN_SYMBOL) - { - fprintf (outf, - "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ - || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); - } - else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) - { - fprintf (outf, - "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ - || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); - } - else - { - fatal ("internal error for function %s", fn->fname); - } - if_was_emitted = 1; - } - - /* In the case of memmove, protect in case the application - defines it as a macro before including the header. */ - if (!strcmp (fn->fname, "memmove") - || !strcmp (fn->fname, "vprintf") - || !strcmp (fn->fname, "vfprintf") - || !strcmp (fn->fname, "vsprintf") - || !strcmp (fn->fname, "rewinddir")) - macro_protect = 1; - - if (macro_protect) - fprintf (outf, "#ifndef %s\n", fn->fname); - fprintf (outf, "extern %s %s (%s);\n", - fn->rtype, fn->fname, fn->params); - if (macro_protect) - fprintf (outf, "#endif\n"); - } - if (if_was_emitted) - fprintf (outf, - "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); - } - if (required_unseen_count) - { -#ifdef NO_IMPLICIT_EXTERN_C - fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); -#endif - } - - switch (special_file_handling) - { - case errno_h: - if (!seen_errno) - fprintf (outf, "extern int errno;\n"); - break; - case stdlib_h: - if (!seen_EXIT_FAILURE) - fprintf (outf, "#define EXIT_FAILURE 1\n"); - if (!seen_EXIT_SUCCESS) - fprintf (outf, "#define EXIT_SUCCESS 0\n"); - break; - case sys_stat_h: - if (!seen_S_ISBLK && seen_S_IFBLK) - fprintf (outf, - "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); - if (!seen_S_ISCHR && seen_S_IFCHR) - fprintf (outf, - "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); - if (!seen_S_ISDIR && seen_S_IFDIR) - fprintf (outf, - "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); - if (!seen_S_ISFIFO && seen_S_IFIFO) - fprintf (outf, - "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); - if (!seen_S_ISLNK && seen_S_IFLNK) - fprintf (outf, - "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); - if (!seen_S_ISREG && seen_S_IFREG) - fprintf (outf, - "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); - break; - } - - -#if ADD_MISSING_EXTERN_C - if (missing_extern_C_count + required_unseen_count > 0) - fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); -#endif -} - -char * -xstrdup (str) - char *str; -{ - char *copy = (char *) xmalloc (strlen (str) + 1); - strcpy (copy, str); - return copy; -} - -/* Returns 1 iff the file is properly protected from multiple inclusion: - #ifndef PROTECT_NAME - #define PROTECT_NAME - #endif - - */ - -#define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF) -#define INF_UNGET(c) ((c)!=EOF && inf_ptr--) - -int -inf_skip_spaces (c) - int c; -{ - for (;;) - { - if (c == ' ' || c == '\t') - c = INF_GET (); - else if (c == '/') - { - c = INF_GET (); - if (c != '*') - { - INF_UNGET (c); - return '/'; - } - c = INF_GET (); - for (;;) - { - if (c == EOF) - return EOF; - else if (c != '*') - { - if (c == '\n') - source_lineno++, lineno++; - c = INF_GET (); - } - else if ((c = INF_GET ()) == '/') - return INF_GET (); - } - } - else - break; - } - return c; -} - -/* Read into STR from inf_buffer upto DELIM. */ - -int -inf_read_upto (str, delim) - sstring *str; - int delim; -{ - int ch; - for (;;) - { - ch = INF_GET (); - if (ch == EOF || ch == delim) - break; - SSTRING_PUT (str, ch); - } - MAKE_SSTRING_SPACE (str, 1); - *str->ptr = 0; - return ch; -} - -int -inf_scan_ident (s, c) - register sstring *s; - int c; -{ - s->ptr = s->base; - if (isalpha (c) || c == '_') - { - for (;;) - { - SSTRING_PUT (s, c); - c = INF_GET (); - if (c == EOF || !(isalnum (c) || c == '_')) - break; - } - } - MAKE_SSTRING_SPACE (s, 1); - *s->ptr = 0; - return c; -} - -/* Returns 1 if the file is correctly protected against multiple - inclusion, setting *ifndef_line to the line number of the initial #ifndef - and setting *endif_line to the final #endif. - Otherwise return 0. */ - -int -check_protection (ifndef_line, endif_line) - int *ifndef_line, *endif_line; -{ - int c; - int if_nesting = 1; /* Level of nesting of #if's */ - char *protect_name = NULL; /* Identifier following initial #ifndef */ - int define_seen = 0; - - /* Skip initial white space (including comments). */ - for (;; lineno++) - { - c = inf_skip_spaces (' '); - if (c == EOF) - return 0; - if (c != '\n') - break; - } - if (c != '#') - return 0; - c = inf_scan_ident (&buf, inf_skip_spaces (' ')); - if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) - return 0; - - /* So far so good: We've seen an initial #ifndef. */ - *ifndef_line = lineno; - c = inf_scan_ident (&buf, inf_skip_spaces (c)); - if (SSTRING_LENGTH (&buf) == 0 || c == EOF) - return 0; - protect_name = xstrdup (buf.base); - - INF_UNGET (c); - c = inf_read_upto (&buf, '\n'); - if (c == EOF) - return 0; - lineno++; - - for (;;) - { - c = inf_skip_spaces (' '); - if (c == EOF) - return 0; - if (c == '\n') - { - lineno++; - continue; - } - if (c != '#') - goto skip_to_eol; - c = inf_scan_ident (&buf, inf_skip_spaces (' ')); - if (SSTRING_LENGTH (&buf) == 0) - ; - else if (!strcmp (buf.base, "ifndef") - || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) - { - if_nesting++; - } - else if (!strcmp (buf.base, "endif")) - { - if_nesting--; - if (if_nesting == 0) - break; - } - else if (!strcmp (buf.base, "else")) - { - if (if_nesting == 1) - return 0; - } - else if (!strcmp (buf.base, "define")) - { - if (if_nesting != 1) - goto skip_to_eol; - c = inf_skip_spaces (c); - c = inf_scan_ident (&buf, c); - if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) - define_seen = 1; - } - skip_to_eol: - for (;;) - { - if (c == '\n' || c == EOF) - break; - c = INF_GET (); - } - if (c == EOF) - return 0; - lineno++; - } - - if (!define_seen) - return 0; - *endif_line = lineno; - /* Skip final white space (including comments). */ - for (;;) - { - c = inf_skip_spaces (' '); - if (c == EOF) - break; - if (c != '\n') - return 0; - } - - return 1; -} - -int -main (argc, argv) - int argc; - char **argv; -{ - int inf_fd; - struct stat sbuf; - int c; - int i, done; - const char *cptr, **pptr; - int ifndef_line; - int endif_line; - long to_read; - long int inf_size; - register struct symbol_list *cur_symbols; - - if (argv[0] && argv[0][0]) - { - register char *p; - - progname = 0; - for (p = argv[0]; *p; p++) - if (*p == '/') - progname = p; - progname = progname ? progname+1 : argv[0]; - } - - if (argc < 4) - { - fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", - progname); - exit (-1); - } - - inc_filename = argv[1]; - inc_filename_length = strlen (inc_filename); - -#ifdef FIXPROTO_IGNORE_LIST - for (i = 0; files_to_ignore[i] != NULL; i++) - { - char *ignore_name = files_to_ignore[i]; - int ignore_len = strlen (ignore_name); - if (strncmp (inc_filename, ignore_name, ignore_len) == 0) - { - if (ignore_name[ignore_len-1] == '/' - || inc_filename[ignore_len] == '\0') - { - if (verbose) - fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); - exit (0); - } - } - - } -#endif - - if (strcmp (inc_filename, "sys/stat.h") == 0) - special_file_handling = sys_stat_h; - else if (strcmp (inc_filename, "errno.h") == 0) - special_file_handling = errno_h, required_other++; - else if (strcmp (inc_filename, "stdlib.h") == 0) - special_file_handling = stdlib_h, required_other+=2; - else if (strcmp (inc_filename, "stdio.h") == 0) - special_file_handling = stdio_h; - include_entry = std_include_table; - while (include_entry->name != NULL - && (include_entry->name == CONTINUED - || strcmp (inc_filename, include_entry->name) != 0)) - include_entry++; - - if (include_entry->name != NULL) - { - struct std_include_entry *entry; - cur_symbol_table_size = 0; - for (entry = include_entry; ;) - { - add_symbols (entry->flags, entry->names); - entry++; - if (entry->name != CONTINUED) - break; - } - } - else - symbol_table[0].names = NULL; - - /* Count and mark the prototypes required for this include file. */ - for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) - { - int name_len; - if (cur_symbols->flags & MACRO_SYMBOL) - continue; - cptr = cur_symbols->names; - for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) - { - struct fn_decl *fn = lookup_std_proto (cptr, name_len); - required_unseen_count++; - if (fn == NULL) - fprintf (stderr, "Internal error: No prototype for %s\n", cptr); - else - SET_REQUIRED (fn); - } - } - - read_scan_file (argv[2], argc - 4, argv + 4); - - inf_fd = open (argv[2], O_RDONLY, 0666); - if (inf_fd < 0) - { - fprintf (stderr, "%s: Cannot open '%s' for reading -", - progname, argv[2]); - perror (NULL); - exit (-1); - } - if (fstat (inf_fd, &sbuf) < 0) - { - fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); - perror (NULL); - exit (-1); - } - inf_size = sbuf.st_size; - inf_buffer = (char*) xmalloc (inf_size + 2); - inf_buffer[inf_size] = '\n'; - inf_buffer[inf_size + 1] = '\0'; - inf_limit = inf_buffer + inf_size; - inf_ptr = inf_buffer; - - to_read = inf_size; - while (to_read > 0) - { - long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); - if (i < 0) - { - fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); - perror (NULL); - exit (-1); - } - if (i == 0) - { - inf_size -= to_read; - break; - } - to_read -= i; - } - - close (inf_fd); - - /* If file doesn't end with '\n', add one. */ - if (inf_limit > inf_buffer && inf_limit[-1] != '\n') - inf_limit++; - - unlink (argv[3]); - outf = fopen (argv[3], "w"); - if (outf == NULL) - { - fprintf (stderr, "%s: Cannot open '%s' for writing -", - progname, argv[3]); - perror (NULL); - exit (-1); - } - - lineno = 1; - - if (check_protection (&ifndef_line, &endif_line)) - { - lbrac_line = ifndef_line+1; - rbrac_line = endif_line; - } - else - { - lbrac_line = 1; - rbrac_line = -1; - } - - /* Reset input file. */ - inf_ptr = inf_buffer; - lineno = 1; - - for (;;) - { - if (lineno == lbrac_line) - write_lbrac (); - if (lineno == rbrac_line) - write_rbrac (); - for (;;) - { - struct fn_decl *fn; - c = INF_GET (); - if (c == EOF) - break; - if (isalpha (c) || c == '_') - { - c = inf_scan_ident (&buf, c); - INF_UNGET (c); - fputs (buf.base, outf); - fn = lookup_std_proto (buf.base, strlen (buf.base)); - /* We only want to edit the declaration matching the one - seen by scan-decls, as there can be multiple - declarations, selected by #ifdef __STDC__ or whatever. */ - if (fn && fn->partial && fn->partial->line_seen == lineno) - { - c = inf_skip_spaces (' '); - if (c == EOF) - break; - if (c == '(') - { - c = inf_skip_spaces (' '); - if (c == ')') - { - fprintf (outf, " _PARAMS((%s))", fn->params); - } - else - { - putc ('(', outf); - INF_UNGET (c); - } - } - else - fprintf (outf, " %c", c); - } - } - else - { - putc (c, outf); - if (c == '\n') - break; - } - } - if (c == EOF) - break; - lineno++; - } - if (rbrac_line < 0) - write_rbrac (); - - fclose (outf); - - return 0; -} - -/* Stub error functions. These replace cpperror.c, - because we want to suppress error messages. */ - -void -cpp_file_line_for_message (pfile, filename, line, column) - cpp_reader *pfile; - char *filename; - int line, column; -{ - if (!verbose) - return; - if (column > 0) - fprintf (stderr, "%s:%d:%d: ", filename, line, column); - else - fprintf (stderr, "%s:%d: ", filename, line); -} - -void -cpp_print_containing_files (pfile) - cpp_reader *pfile; -{ -} - -/* IS_ERROR is 1 for error, 0 for warning */ -void cpp_message (pfile, is_error, msg, arg1, arg2, arg3) - int is_error; - cpp_reader *pfile; - char *msg; - char *arg1, *arg2, *arg3; -{ - if (is_error) - pfile->errors++; - if (!verbose) - return; - if (!is_error) - fprintf (stderr, "warning: "); - fprintf (stderr, msg, arg1, arg2, arg3); - fprintf (stderr, "\n"); -} - -void -fatal (str, arg) - char *str, *arg; -{ - fprintf (stderr, "%s: %s: ", progname, inc_filename); - fprintf (stderr, str, arg); - fprintf (stderr, "\n"); - exit (FATAL_EXIT_CODE); -} - -void -cpp_pfatal_with_name (pfile, name) - cpp_reader *pfile; - char *name; -{ - cpp_perror_with_name (pfile, name); - exit (FATAL_EXIT_CODE); -} |