[8833] | 1 | /* fix-header.c - Make C header file suitable for C++. |
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| 2 | Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This program is free software; you can redistribute it and/or modify it |
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| 5 | under the terms of the GNU General Public License as published by the |
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| 6 | Free Software Foundation; either version 2, or (at your option) any |
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| 7 | later version. |
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| 8 | |
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| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | GNU General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU General Public License |
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| 15 | along with this program; if not, write to the Free Software |
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| 16 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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| 17 | |
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| 18 | /* This program massages a system include file (such as stdio.h), |
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| 19 | into a form more conforming with ANSI/POSIX, and more suitable for C++: |
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| 20 | |
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| 21 | * extern "C" { ... } braces are added (inside #ifndef __cplusplus), |
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| 22 | if they seem to be needed. These prevent C++ compilers from name |
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| 23 | mangling the functions inside the braces. |
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| 24 | |
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| 25 | * If an old-style incomplete function declaration is seen (without |
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| 26 | an argument list), and it is a "standard" function listed in |
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| 27 | the file sys-protos.h (and with a non-empty argument list), then |
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| 28 | the declaration is converted to a complete prototype by replacing |
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| 29 | the empty parameter list with the argument lust from sys-protos.h. |
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| 30 | |
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| 31 | * The program can be given a list of (names of) required standard |
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| 32 | functions (such as fclose for stdio.h). If a required function |
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| 33 | is not seen in the input, then a prototype for it will be |
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| 34 | written to the output. |
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| 35 | |
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| 36 | * If all of the non-comment code of the original file is protected |
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| 37 | against multiple inclusion: |
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| 38 | #ifndef FOO |
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| 39 | #define FOO |
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| 40 | <body of include file> |
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| 41 | #endif |
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| 42 | then extra matter added to the include file is placed inside the <body>. |
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| 43 | |
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| 44 | * If the input file is OK (nothing needs to be done); |
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| 45 | the output file is not written (nor removed if it exists). |
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| 46 | |
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| 47 | There are also some special actions that are done for certain |
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| 48 | well-known standard include files: |
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| 49 | |
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| 50 | * If argv[1] is "sys/stat.h", the Posix.1 macros |
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| 51 | S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if |
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| 52 | they were missing, and the corresponding "traditional" S_IFxxx |
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| 53 | macros were defined. |
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| 54 | |
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| 55 | * If argv[1] is "errno.h", errno is declared if it was missing. |
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| 56 | |
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| 57 | * TODO: The input file should be read complete into memory, because: |
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| 58 | a) it needs to be scanned twice anyway, and |
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| 59 | b) it would be nice to allow update in place. |
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| 60 | |
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| 61 | Usage: |
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| 62 | fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] |
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| 63 | where: |
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| 64 | * FOO.H is the relative file name of the include file, |
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| 65 | as it would be #include'd by a C file. (E.g. stdio.h) |
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| 66 | * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h) |
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| 67 | * OUTFILE.H is the full pathname for where to write the output file, |
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| 68 | if anything needs to be done. (e.g. ./include/stdio.h) |
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| 69 | * OPTIONS are such as you would pass to cpp. |
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| 70 | |
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| 71 | Written by Per Bothner <bothner@cygnus.com>, July 1993. */ |
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| 72 | |
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| 73 | #include <stdio.h> |
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| 74 | #include <ctype.h> |
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| 75 | #include "hconfig.h" |
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| 76 | #include "obstack.h" |
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| 77 | #include "scan.h" |
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| 78 | #include "cpplib.h" |
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| 79 | #ifndef O_RDONLY |
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| 80 | #define O_RDONLY 0 |
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| 81 | #endif |
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| 82 | |
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| 83 | #if !__STDC__ |
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| 84 | #define const /* nothing */ |
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| 85 | #endif |
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| 86 | |
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| 87 | sstring buf; |
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| 88 | |
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| 89 | int verbose = 0; |
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| 90 | int partial_count = 0; |
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| 91 | int warnings = 0; |
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| 92 | |
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| 93 | /* We no longer need to add extern "C", because cpp implicitly |
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| 94 | forces the standard include files to be treated as C. */ |
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| 95 | /*#define ADD_MISSING_EXTERN_C 1 */ |
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| 96 | |
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| 97 | #if ADD_MISSING_EXTERN_C |
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| 98 | int missing_extern_C_count = 0; |
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| 99 | #endif |
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| 100 | int missing_errno = 0; |
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| 101 | |
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| 102 | #include "xsys-protos.h" |
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| 103 | |
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| 104 | #ifdef FIXPROTO_IGNORE_LIST |
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| 105 | /* This is a currently unused feature. */ |
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| 106 | |
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| 107 | /* List of files and directories to ignore. |
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| 108 | A directory name (ending in '/') means ignore anything in that |
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| 109 | directory. (It might be more efficient to do directory pruning |
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| 110 | earlier in fixproto, but this is simpler and easier to customize.) */ |
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| 111 | |
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| 112 | static char *files_to_ignore[] = { |
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| 113 | "X11/", |
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| 114 | FIXPROTO_IGNORE_LIST |
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| 115 | 0 |
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| 116 | }; |
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| 117 | #endif |
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| 118 | |
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| 119 | char *inf_buffer; |
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| 120 | char *inf_limit; |
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| 121 | char *inf_ptr; |
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| 122 | |
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| 123 | /* Certain standard files get extra treatment */ |
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| 124 | |
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| 125 | enum special_file |
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| 126 | { |
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| 127 | no_special, |
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| 128 | errno_h, |
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| 129 | stdio_h, |
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| 130 | sys_stat_h |
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| 131 | }; |
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| 132 | |
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| 133 | /* A NAMELIST is a sequence of names, separated by '\0', and terminated |
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| 134 | by an empty name (i.e. by "\0\0"). */ |
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| 135 | |
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| 136 | typedef const char* namelist; |
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| 137 | |
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| 138 | struct std_include_entry { |
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| 139 | const char *name; |
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| 140 | namelist required; |
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| 141 | namelist extra; |
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| 142 | int special; |
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| 143 | }; |
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| 144 | |
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| 145 | /* End of namelist NAMES. */ |
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| 146 | |
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| 147 | namelist |
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| 148 | namelist_end (names) |
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| 149 | namelist names; |
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| 150 | { |
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| 151 | register namelist ptr; |
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| 152 | for (ptr = names; ; ptr++) |
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| 153 | { |
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| 154 | if (*ptr == '\0') |
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| 155 | { |
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| 156 | ptr++; |
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| 157 | if (*ptr == '\0') |
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| 158 | return ptr; |
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| 159 | } |
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| 160 | } |
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| 161 | } |
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| 162 | |
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| 163 | const char NONE[] = ""; |
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| 164 | |
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| 165 | struct std_include_entry *include_entry; |
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| 166 | |
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| 167 | struct std_include_entry std_include_table [] = { |
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| 168 | { "ctype.h", |
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| 169 | "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ |
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| 170 | isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0", NONE }, |
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| 171 | |
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| 172 | { "dirent.h", "closedir\0opendir\0readdir\0rewinddir\0", NONE}, |
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| 173 | |
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| 174 | { "errno.h", NONE, "errno\0" }, |
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| 175 | |
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| 176 | { "curses.h", "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ |
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| 177 | mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ |
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| 178 | scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ |
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| 179 | waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ |
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| 180 | wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0", NONE }, |
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| 181 | |
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| 182 | { "fcntl.h", "creat\0fcntl\0open\0", NONE }, |
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| 183 | |
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| 184 | /* Maybe also "getgrent fgetgrent setgrent endgrent" */ |
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| 185 | { "grp.h", "getgrgid\0getgrnam\0", NONE }, |
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| 186 | |
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| 187 | /*{ "limit.h", ... provided by gcc }, */ |
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| 188 | |
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| 189 | { "locale.h", "localeconv\0setlocale\0", NONE }, |
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| 190 | |
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| 191 | { "math.h", "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ |
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| 192 | fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ |
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| 193 | tan\0tanh\0", "HUGE_VAL\0" }, |
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| 194 | |
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| 195 | { "pwd.h", "getpwnam\0getpwuid\0", NONE }, |
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| 196 | |
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| 197 | /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ |
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| 198 | { "setjmp.h", "longjmp\0setjmp\0", NONE }, |
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| 199 | |
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| 200 | /* Left out signal() - its prototype is too complex for us! |
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| 201 | Also left out "sigaction sigaddset sigdelset sigemptyset |
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| 202 | sigfillset sigismember sigpending sigprocmask sigsuspend" |
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| 203 | because these need sigset_t or struct sigaction. |
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| 204 | Most systems that provide them will also declare them. */ |
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| 205 | { "signal.h", "kill\0raise\0", NONE }, |
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| 206 | |
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| 207 | { "stdio.h", "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ |
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| 208 | fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ |
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| 209 | fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0pclose\0perror\0popen\0\ |
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| 210 | printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ |
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| 211 | setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ |
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| 212 | tmpnam\0ungetc\0", NONE }, |
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| 213 | /* Should perhaps also handle NULL, EOF, ... ? */ |
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| 214 | |
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| 215 | /* "div ldiv", - ignored because these depend on div_t, ldiv_t |
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| 216 | ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" |
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| 217 | Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. |
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| 218 | Should perhaps also add NULL */ |
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| 219 | { "stdlib.h", "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ |
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| 220 | exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ |
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| 221 | srand\0strtod\0strtol\0strtoul\0system\0", NONE }, |
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| 222 | |
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| 223 | { "string.h", "memchr\0memcmp\0memcpy\0memmove\0memset\0\ |
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| 224 | strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ |
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| 225 | strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ |
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| 226 | strtok\0strxfrm\0", NONE }, |
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| 227 | /* Should perhaps also add NULL and size_t */ |
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| 228 | |
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| 229 | { "sys/stat.h", "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0", |
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| 230 | "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ |
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| 231 | S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, |
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| 232 | |
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| 233 | { "sys/times.h", "times\0", NONE }, |
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| 234 | /* "sys/types.h" add types (not in old g++-include) */ |
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| 235 | |
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| 236 | { "sys/utsname.h", "uname\0", NONE }, |
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| 237 | |
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| 238 | { "sys/wait.h", "wait\0waitpid\0", |
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| 239 | "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ |
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| 240 | WTERMSIG\0WNOHANG\0WNOTRACED\0" }, |
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| 241 | |
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| 242 | { "tar.h", NONE, NONE }, |
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| 243 | |
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| 244 | { "termios.h", "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0", NONE }, |
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| 245 | |
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| 246 | { "time.h", "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0", NONE }, |
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| 247 | |
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| 248 | { "unistd.h", "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ |
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| 249 | dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ |
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| 250 | getcwd\0getegid\0geteuid\0getgid\0getlogin\0getopt\0getpgrp\0getpid\0\ |
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| 251 | getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ |
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| 252 | setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ |
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| 253 | ttyname\0unlink\0write\0", NONE }, |
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| 254 | |
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| 255 | { 0, NONE, NONE } |
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| 256 | }; |
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| 257 | |
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| 258 | enum special_file special_file_handling = no_special; |
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| 259 | |
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| 260 | /* The following are only used when handling sys/stat.h */ |
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| 261 | /* They are set if the corresponding macro has been seen. */ |
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| 262 | int seen_S_IFBLK = 0, seen_S_ISBLK = 0; |
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| 263 | int seen_S_IFCHR = 0, seen_S_ISCHR = 0; |
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| 264 | int seen_S_IFDIR = 0, seen_S_ISDIR = 0; |
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| 265 | int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; |
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| 266 | int seen_S_IFLNK = 0, seen_S_ISLNK = 0; |
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| 267 | int seen_S_IFREG = 0, seen_S_ISREG = 0; |
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| 268 | |
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| 269 | /* Wrapper around free, to avoid prototype clashes. */ |
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| 270 | |
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| 271 | void |
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| 272 | xfree (ptr) |
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| 273 | char *ptr; |
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| 274 | { |
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| 275 | free (ptr); |
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| 276 | } |
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| 277 | |
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| 278 | /* Avoid error if config defines abort as fancy_abort. |
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| 279 | It's not worth "really" implementing this because ordinary |
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| 280 | compiler users never run fix-header. */ |
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| 281 | |
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| 282 | void |
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| 283 | fancy_abort () |
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| 284 | { |
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| 285 | abort (); |
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| 286 | } |
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| 287 | |
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| 288 | #define obstack_chunk_alloc xmalloc |
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| 289 | #define obstack_chunk_free xfree |
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| 290 | struct obstack scan_file_obstack; |
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| 291 | |
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| 292 | /* NOTE: If you edit this, also edit gen-protos.c !! */ |
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| 293 | struct fn_decl * |
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| 294 | lookup_std_proto (name, name_length) |
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| 295 | const char *name; |
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| 296 | int name_length; |
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| 297 | { |
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| 298 | int i = hashf (name, name_length, HASH_SIZE); |
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| 299 | int i0 = i; |
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| 300 | for (;;) |
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| 301 | { |
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| 302 | struct fn_decl *fn; |
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| 303 | if (hash_tab[i] == 0) |
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| 304 | return NULL; |
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| 305 | fn = &std_protos[hash_tab[i]]; |
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| 306 | if (strlen (fn->fname) == name_length |
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| 307 | && strncmp (fn->fname, name, name_length) == 0) |
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| 308 | return fn; |
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| 309 | i = (i+1) % HASH_SIZE; |
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| 310 | if (i == i0) |
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| 311 | abort (); |
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| 312 | } |
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| 313 | } |
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| 314 | |
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| 315 | char *inc_filename; |
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| 316 | int inc_filename_length; |
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| 317 | char *progname = "fix-header"; |
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| 318 | FILE *outf; |
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| 319 | sstring line; |
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| 320 | |
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| 321 | int lbrac_line, rbrac_line; |
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| 322 | |
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| 323 | namelist required_functions_list; |
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| 324 | int required_unseen_count = 0; |
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| 325 | |
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| 326 | void |
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| 327 | write_lbrac () |
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| 328 | { |
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| 329 | |
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| 330 | #if ADD_MISSING_EXTERN_C |
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| 331 | if (missing_extern_C_count + required_unseen_count > 0) |
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| 332 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
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| 333 | #endif |
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| 334 | |
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| 335 | if (partial_count) |
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| 336 | { |
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| 337 | fprintf (outf, "#ifndef _PARAMS\n"); |
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| 338 | fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); |
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| 339 | fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); |
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| 340 | fprintf (outf, "#else\n"); |
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| 341 | fprintf (outf, "#define _PARAMS(ARGS) ()\n"); |
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| 342 | fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); |
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| 343 | } |
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| 344 | } |
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| 345 | |
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| 346 | struct partial_proto |
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| 347 | { |
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| 348 | struct partial_proto *next; |
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| 349 | char *fname; /* name of function */ |
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| 350 | char *rtype; /* return type */ |
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| 351 | struct fn_decl *fn; |
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| 352 | int line_seen; |
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| 353 | }; |
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| 354 | |
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| 355 | struct partial_proto *partial_proto_list = NULL; |
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| 356 | |
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| 357 | struct partial_proto required_dummy_proto, seen_dummy_proto; |
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| 358 | #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) |
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| 359 | #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) |
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| 360 | #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) |
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| 361 | #define SEEN(FN) ((FN)->partial == &seen_dummy_proto) |
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| 362 | |
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| 363 | void |
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| 364 | recognized_macro (fname) |
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| 365 | char *fname; |
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| 366 | { |
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| 367 | /* The original include file defines fname as a macro. */ |
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| 368 | struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); |
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| 369 | |
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| 370 | /* Since fname is a macro, don't require a prototype for it. */ |
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| 371 | if (fn) |
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| 372 | { |
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| 373 | if (REQUIRED (fn)) |
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| 374 | required_unseen_count--; |
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| 375 | SET_SEEN (fn); |
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| 376 | } |
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| 377 | |
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| 378 | switch (special_file_handling) |
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| 379 | { |
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| 380 | case errno_h: |
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| 381 | if (strcmp (fname, "errno") == 0) missing_errno = 0; |
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| 382 | break; |
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| 383 | case sys_stat_h: |
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| 384 | if (fname[0] == 'S' && fname[1] == '_') |
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| 385 | { |
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| 386 | if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; |
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| 387 | else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; |
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| 388 | else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; |
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| 389 | else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; |
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| 390 | else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; |
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| 391 | else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; |
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| 392 | else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; |
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| 393 | else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; |
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| 394 | else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; |
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| 395 | else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; |
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| 396 | else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; |
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| 397 | else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; |
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| 398 | } |
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| 399 | } |
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| 400 | } |
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| 401 | |
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| 402 | void |
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| 403 | recognized_extern (name, name_length, type, type_length) |
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| 404 | char *name; |
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| 405 | char *type; |
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| 406 | int name_length, type_length; |
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| 407 | { |
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| 408 | switch (special_file_handling) |
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| 409 | { |
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| 410 | case errno_h: |
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| 411 | if (strncmp (name, "errno", name_length) == 0) missing_errno = 0; |
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| 412 | break; |
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| 413 | } |
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| 414 | } |
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| 415 | |
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| 416 | /* Called by scan_decls if it saw a function definition for a function |
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| 417 | named FNAME, with return type RTYPE, and argument list ARGS, |
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| 418 | in source file FILE_SEEN on line LINE_SEEN. |
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| 419 | KIND is 'I' for an inline function; |
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| 420 | 'F' if a normal function declaration preceded by 'extern "C"' |
---|
| 421 | (or nested inside 'extern "C"' braces); or |
---|
| 422 | 'f' for other function declarations. */ |
---|
| 423 | |
---|
| 424 | void |
---|
| 425 | recognized_function (fname, fname_length, |
---|
| 426 | kind, rtype, rtype_length, |
---|
| 427 | have_arg_list, file_seen, line_seen) |
---|
| 428 | char *fname; |
---|
| 429 | int fname_length; |
---|
| 430 | int kind; /* One of 'f' 'F' or 'I' */ |
---|
| 431 | char *rtype; |
---|
| 432 | int rtype_length; |
---|
| 433 | int have_arg_list; |
---|
| 434 | char *file_seen; |
---|
| 435 | int line_seen; |
---|
| 436 | { |
---|
| 437 | struct partial_proto *partial; |
---|
| 438 | int i; |
---|
| 439 | struct fn_decl *fn; |
---|
| 440 | #if ADD_MISSING_EXTERN_C |
---|
| 441 | if (kind == 'f') |
---|
| 442 | missing_extern_C_count++; |
---|
| 443 | #endif |
---|
| 444 | |
---|
| 445 | fn = lookup_std_proto (fname, fname_length); |
---|
| 446 | |
---|
| 447 | /* Remove the function from the list of required function. */ |
---|
| 448 | if (fn) |
---|
| 449 | { |
---|
| 450 | if (REQUIRED (fn)) |
---|
| 451 | required_unseen_count--; |
---|
| 452 | SET_SEEN (fn); |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | /* If we have a full prototype, we're done. */ |
---|
| 456 | if (have_arg_list) |
---|
| 457 | return; |
---|
| 458 | |
---|
| 459 | if (kind == 'I') /* don't edit inline function */ |
---|
| 460 | return; |
---|
| 461 | |
---|
| 462 | /* If the partial prototype was included from some other file, |
---|
| 463 | we don't need to patch it up (in this run). */ |
---|
| 464 | i = strlen (file_seen); |
---|
| 465 | if (i < inc_filename_length |
---|
| 466 | || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) |
---|
| 467 | return; |
---|
| 468 | |
---|
| 469 | if (fn == NULL) |
---|
| 470 | return; |
---|
| 471 | if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0) |
---|
| 472 | return; |
---|
| 473 | |
---|
| 474 | /* We only have a partial function declaration, |
---|
| 475 | so remember that we have to add a complete prototype. */ |
---|
| 476 | partial_count++; |
---|
| 477 | partial = (struct partial_proto*) |
---|
| 478 | obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); |
---|
| 479 | partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1); |
---|
| 480 | bcopy (fname, partial->fname, fname_length); |
---|
| 481 | partial->fname[fname_length] = 0; |
---|
| 482 | partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1); |
---|
| 483 | sprintf (partial->rtype, "%.*s", rtype_length, rtype); |
---|
| 484 | partial->line_seen = line_seen; |
---|
| 485 | partial->fn = fn; |
---|
| 486 | fn->partial = partial; |
---|
| 487 | partial->next = partial_proto_list; |
---|
| 488 | partial_proto_list = partial; |
---|
| 489 | if (verbose) |
---|
| 490 | { |
---|
| 491 | fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", |
---|
| 492 | inc_filename, partial->fname); |
---|
| 493 | } |
---|
| 494 | } |
---|
| 495 | |
---|
| 496 | /* For any name in NAMES that is defined as a macro, |
---|
| 497 | call recognized_macro on it. */ |
---|
| 498 | |
---|
| 499 | void |
---|
| 500 | check_macro_names (pfile, names) |
---|
| 501 | struct parse_file *pfile; |
---|
| 502 | namelist names; |
---|
| 503 | { |
---|
| 504 | while (*names) |
---|
| 505 | { |
---|
| 506 | if (cpp_lookup (pfile, names, -1, -1)) |
---|
| 507 | recognized_macro (names); |
---|
| 508 | names += strlen (names) + 1; |
---|
| 509 | } |
---|
| 510 | } |
---|
| 511 | |
---|
| 512 | void |
---|
| 513 | read_scan_file (in_fname, argc, argv) |
---|
| 514 | char *in_fname; |
---|
| 515 | int argc; |
---|
| 516 | char **argv; |
---|
| 517 | { |
---|
| 518 | cpp_reader scan_in; |
---|
| 519 | cpp_options scan_options; |
---|
| 520 | struct fn_decl *fn; |
---|
| 521 | int i; |
---|
| 522 | |
---|
| 523 | obstack_init (&scan_file_obstack); |
---|
| 524 | |
---|
| 525 | init_parse_file (&scan_in); |
---|
| 526 | scan_in.data = &scan_options; |
---|
| 527 | init_parse_options (&scan_options); |
---|
| 528 | i = cpp_handle_options (&scan_in, argc, argv); |
---|
| 529 | if (i < argc) |
---|
| 530 | fatal ("Invalid option `%s'", argv[i]); |
---|
| 531 | push_parse_file (&scan_in, in_fname); |
---|
| 532 | CPP_OPTIONS (&scan_in)->no_line_commands = 1; |
---|
| 533 | |
---|
| 534 | #ifdef FIXPROTO_INIT |
---|
| 535 | /* Some targets may assume special definitions (for example |
---|
| 536 | OSF header files assume __LANGUAGE_C__). These macros |
---|
| 537 | are normally passed to cpplib by gcc - but we here invoke |
---|
| 538 | cpplib directly, without going through gcc. |
---|
| 539 | Handle these and other target-dependent initializations here. */ |
---|
| 540 | FIXPROTO_INIT (&scan_in); |
---|
| 541 | #endif |
---|
| 542 | |
---|
| 543 | /* Actually (pre-)process the header file. */ |
---|
| 544 | scan_decls (&scan_in, argc, argv); |
---|
| 545 | |
---|
| 546 | check_macro_names (&scan_in, include_entry->required); |
---|
| 547 | check_macro_names (&scan_in, include_entry->extra); |
---|
| 548 | |
---|
| 549 | if (verbose && (scan_in.errors + warnings) > 0) |
---|
| 550 | fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n", |
---|
| 551 | inc_filename, scan_in.errors, warnings); |
---|
| 552 | if (scan_in.errors) |
---|
| 553 | exit (0); |
---|
| 554 | |
---|
| 555 | /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. |
---|
| 556 | If so, those functions are also required. */ |
---|
| 557 | if (special_file_handling == stdio_h |
---|
| 558 | && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) |
---|
| 559 | { |
---|
| 560 | static char getchar_call[] = "getchar();"; |
---|
| 561 | cpp_buffer *buf = |
---|
| 562 | cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1); |
---|
| 563 | int old_written = CPP_WRITTEN (&scan_in); |
---|
| 564 | int seen_filbuf = 0; |
---|
| 565 | |
---|
| 566 | /* Scan the macro expansion of "getchar();". */ |
---|
| 567 | for (;;) |
---|
| 568 | { |
---|
| 569 | enum cpp_token token = cpp_get_token (&scan_in); |
---|
| 570 | int length = CPP_WRITTEN (&scan_in) - old_written; |
---|
| 571 | CPP_SET_WRITTEN (&scan_in, old_written); |
---|
| 572 | if (token == CPP_EOF) /* Should not happen ... */ |
---|
| 573 | break; |
---|
| 574 | if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf) |
---|
| 575 | { |
---|
| 576 | cpp_pop_buffer (&scan_in); |
---|
| 577 | break; |
---|
| 578 | } |
---|
| 579 | if (token == CPP_NAME && length == 7 |
---|
| 580 | && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0) |
---|
| 581 | seen_filbuf++; |
---|
| 582 | } |
---|
| 583 | if (seen_filbuf) |
---|
| 584 | { |
---|
| 585 | int need_filbuf = !SEEN (fn) && !REQUIRED (fn); |
---|
| 586 | struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); |
---|
| 587 | int need_flsbuf |
---|
| 588 | = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); |
---|
| 589 | |
---|
| 590 | /* Append "_filbuf" and/or "_flsbuf" to end of |
---|
| 591 | required_functions_list. */ |
---|
| 592 | if (need_filbuf + need_flsbuf) |
---|
| 593 | { |
---|
| 594 | int old_len = namelist_end (required_functions_list) |
---|
| 595 | - required_functions_list; |
---|
| 596 | char *new_list = (char*) xmalloc (old_len + 20); |
---|
| 597 | bcopy (required_functions_list, new_list, old_len); |
---|
| 598 | if (need_filbuf) |
---|
| 599 | { |
---|
| 600 | strcpy (new_list + old_len, "_filbuf"); |
---|
| 601 | old_len += 8; |
---|
| 602 | SET_REQUIRED (fn); |
---|
| 603 | } |
---|
| 604 | if (need_flsbuf) |
---|
| 605 | { |
---|
| 606 | strcpy (new_list + old_len, "_flsbuf"); |
---|
| 607 | old_len += 8; |
---|
| 608 | SET_REQUIRED (flsbuf_fn); |
---|
| 609 | } |
---|
| 610 | new_list[old_len] = '\0'; |
---|
| 611 | required_functions_list = (namelist)new_list; |
---|
| 612 | required_unseen_count += need_filbuf + need_flsbuf; |
---|
| 613 | } |
---|
| 614 | } |
---|
| 615 | } |
---|
| 616 | |
---|
| 617 | if (required_unseen_count + partial_count + missing_errno |
---|
| 618 | #if ADD_MISSING_EXTERN_C |
---|
| 619 | + missing_extern_C_count |
---|
| 620 | #endif |
---|
| 621 | == 0) |
---|
| 622 | { |
---|
| 623 | if (verbose) |
---|
| 624 | fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); |
---|
| 625 | exit (0); |
---|
| 626 | } |
---|
| 627 | if (!verbose) |
---|
| 628 | fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); |
---|
| 629 | else |
---|
| 630 | { |
---|
| 631 | if (required_unseen_count) |
---|
| 632 | fprintf (stderr, "%s: %d missing function declarations.\n", |
---|
| 633 | inc_filename, required_unseen_count); |
---|
| 634 | if (partial_count) |
---|
| 635 | fprintf (stderr, "%s: %d non-prototype function declarations.\n", |
---|
| 636 | inc_filename, partial_count); |
---|
| 637 | #if ADD_MISSING_EXTERN_C |
---|
| 638 | if (missing_extern_C_count) |
---|
| 639 | fprintf (stderr, |
---|
| 640 | "%s: %d declarations not protected by extern \"C\".\n", |
---|
| 641 | inc_filename, missing_extern_C_count); |
---|
| 642 | #endif |
---|
| 643 | } |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | void |
---|
| 647 | write_rbrac () |
---|
| 648 | { |
---|
| 649 | struct fn_decl *fn; |
---|
| 650 | const char *cptr; |
---|
| 651 | |
---|
| 652 | if (required_unseen_count) |
---|
| 653 | { |
---|
| 654 | fprintf (outf, |
---|
| 655 | "#if defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__)\n"); |
---|
| 656 | #ifdef NO_IMPLICIT_EXTERN_C |
---|
| 657 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
---|
| 658 | #endif |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | /* Now we print out prototypes for those functions that we haven't seen. */ |
---|
| 662 | for (cptr = required_functions_list; *cptr!= '\0'; ) |
---|
| 663 | { |
---|
| 664 | int macro_protect = 0; |
---|
| 665 | int name_len = strlen (cptr); |
---|
| 666 | |
---|
| 667 | fn = lookup_std_proto (cptr, name_len); |
---|
| 668 | cptr+= name_len + 1; |
---|
| 669 | if (fn == NULL || !REQUIRED (fn)) |
---|
| 670 | continue; |
---|
| 671 | |
---|
| 672 | /* In the case of memmove, protect in case the application |
---|
| 673 | defines it as a macro before including the header. */ |
---|
| 674 | if (!strcmp (fn->fname, "memmove") |
---|
| 675 | || !strcmp (fn->fname, "vprintf") |
---|
| 676 | || !strcmp (fn->fname, "vfprintf") |
---|
| 677 | || !strcmp (fn->fname, "vsprintf") |
---|
| 678 | || !strcmp (fn->fname, "rewinddir")) |
---|
| 679 | macro_protect = 1; |
---|
| 680 | |
---|
| 681 | if (macro_protect) |
---|
| 682 | fprintf (outf, "#ifndef %s\n", fn->fname); |
---|
| 683 | fprintf (outf, "extern %s %s (%s);\n", |
---|
| 684 | fn->rtype, fn->fname, fn->params); |
---|
| 685 | if (macro_protect) |
---|
| 686 | fprintf (outf, "#endif\n"); |
---|
| 687 | } |
---|
| 688 | if (required_unseen_count) |
---|
| 689 | { |
---|
| 690 | #ifdef NO_IMPLICIT_EXTERN_C |
---|
| 691 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
---|
| 692 | #endif |
---|
| 693 | fprintf (outf, |
---|
| 694 | "#endif /* defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__*/\n"); |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | switch (special_file_handling) |
---|
| 698 | { |
---|
| 699 | case errno_h: |
---|
| 700 | if (missing_errno) |
---|
| 701 | fprintf (outf, "extern int errno;\n"); |
---|
| 702 | break; |
---|
| 703 | case sys_stat_h: |
---|
| 704 | if (!seen_S_ISBLK && seen_S_IFBLK) |
---|
| 705 | fprintf (outf, |
---|
| 706 | "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); |
---|
| 707 | if (!seen_S_ISCHR && seen_S_IFCHR) |
---|
| 708 | fprintf (outf, |
---|
| 709 | "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); |
---|
| 710 | if (!seen_S_ISDIR && seen_S_IFDIR) |
---|
| 711 | fprintf (outf, |
---|
| 712 | "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); |
---|
| 713 | if (!seen_S_ISFIFO && seen_S_IFIFO) |
---|
| 714 | fprintf (outf, |
---|
| 715 | "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); |
---|
| 716 | if (!seen_S_ISLNK && seen_S_IFLNK) |
---|
| 717 | fprintf (outf, |
---|
| 718 | "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); |
---|
| 719 | if (!seen_S_ISREG && seen_S_IFREG) |
---|
| 720 | fprintf (outf, |
---|
| 721 | "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); |
---|
| 722 | break; |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | |
---|
| 726 | #if ADD_MISSING_EXTERN_C |
---|
| 727 | if (missing_extern_C_count + required_unseen_count > 0) |
---|
| 728 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
---|
| 729 | #endif |
---|
| 730 | } |
---|
| 731 | |
---|
| 732 | char * |
---|
| 733 | xstrdup (str) |
---|
| 734 | char *str; |
---|
| 735 | { |
---|
| 736 | char *copy = (char *) xmalloc (strlen (str) + 1); |
---|
| 737 | strcpy (copy, str); |
---|
| 738 | return copy; |
---|
| 739 | } |
---|
| 740 | |
---|
| 741 | /* Returns 1 iff the file is properly protected from multiple inclusion: |
---|
| 742 | #ifndef PROTECT_NAME |
---|
| 743 | #define PROTECT_NAME |
---|
| 744 | #endif |
---|
| 745 | |
---|
| 746 | */ |
---|
| 747 | |
---|
| 748 | #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF) |
---|
| 749 | #define INF_UNGET(c) ((c)!=EOF && inf_ptr--) |
---|
| 750 | |
---|
| 751 | int |
---|
| 752 | inf_skip_spaces (c) |
---|
| 753 | int c; |
---|
| 754 | { |
---|
| 755 | for (;;) |
---|
| 756 | { |
---|
| 757 | if (c == ' ' || c == '\t') |
---|
| 758 | c = INF_GET (); |
---|
| 759 | else if (c == '/') |
---|
| 760 | { |
---|
| 761 | c = INF_GET (); |
---|
| 762 | if (c != '*') |
---|
| 763 | { |
---|
| 764 | INF_UNGET (c); |
---|
| 765 | return '/'; |
---|
| 766 | } |
---|
| 767 | c = INF_GET (); |
---|
| 768 | for (;;) |
---|
| 769 | { |
---|
| 770 | if (c == EOF) |
---|
| 771 | return EOF; |
---|
| 772 | else if (c != '*') |
---|
| 773 | { |
---|
| 774 | if (c == '\n') |
---|
| 775 | source_lineno++, lineno++; |
---|
| 776 | c = INF_GET (); |
---|
| 777 | } |
---|
| 778 | else if ((c = INF_GET ()) == '/') |
---|
| 779 | return INF_GET (); |
---|
| 780 | } |
---|
| 781 | } |
---|
| 782 | else |
---|
| 783 | break; |
---|
| 784 | } |
---|
| 785 | return c; |
---|
| 786 | } |
---|
| 787 | |
---|
| 788 | /* Read into STR from inf_buffer upto DELIM. */ |
---|
| 789 | |
---|
| 790 | int |
---|
| 791 | inf_read_upto (str, delim) |
---|
| 792 | sstring *str; |
---|
| 793 | int delim; |
---|
| 794 | { |
---|
| 795 | int ch; |
---|
| 796 | for (;;) |
---|
| 797 | { |
---|
| 798 | ch = INF_GET (); |
---|
| 799 | if (ch == EOF || ch == delim) |
---|
| 800 | break; |
---|
| 801 | SSTRING_PUT (str, ch); |
---|
| 802 | } |
---|
| 803 | MAKE_SSTRING_SPACE (str, 1); |
---|
| 804 | *str->ptr = 0; |
---|
| 805 | return ch; |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | int |
---|
| 809 | inf_scan_ident (s, c) |
---|
| 810 | register sstring *s; |
---|
| 811 | int c; |
---|
| 812 | { |
---|
| 813 | s->ptr = s->base; |
---|
| 814 | if (isalpha (c) || c == '_') |
---|
| 815 | { |
---|
| 816 | for (;;) |
---|
| 817 | { |
---|
| 818 | SSTRING_PUT (s, c); |
---|
| 819 | c = INF_GET (); |
---|
| 820 | if (c == EOF || !(isalnum (c) || c == '_')) |
---|
| 821 | break; |
---|
| 822 | } |
---|
| 823 | } |
---|
| 824 | MAKE_SSTRING_SPACE (s, 1); |
---|
| 825 | *s->ptr = 0; |
---|
| 826 | return c; |
---|
| 827 | } |
---|
| 828 | |
---|
| 829 | /* Returns 1 if the file is correctly protected against multiple |
---|
| 830 | inclusion, setting *ifndef_line to the line number of the initial #ifndef |
---|
| 831 | and setting *endif_line to the final #endif. |
---|
| 832 | Otherwise return 0. */ |
---|
| 833 | |
---|
| 834 | int |
---|
| 835 | check_protection (ifndef_line, endif_line) |
---|
| 836 | int *ifndef_line, *endif_line; |
---|
| 837 | { |
---|
| 838 | int c; |
---|
| 839 | int if_nesting = 1; /* Level of nesting of #if's */ |
---|
| 840 | char *protect_name = NULL; /* Identifier following initial #ifndef */ |
---|
| 841 | int define_seen = 0; |
---|
| 842 | |
---|
| 843 | /* Skip initial white space (including comments). */ |
---|
| 844 | for (;; lineno++) |
---|
| 845 | { |
---|
| 846 | c = inf_skip_spaces (' '); |
---|
| 847 | if (c == EOF) |
---|
| 848 | return 0; |
---|
| 849 | if (c != '\n') |
---|
| 850 | break; |
---|
| 851 | } |
---|
| 852 | if (c != '#') |
---|
| 853 | return 0; |
---|
| 854 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
---|
| 855 | if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) |
---|
| 856 | return 0; |
---|
| 857 | |
---|
| 858 | /* So far so good: We've seen an initial #ifndef. */ |
---|
| 859 | *ifndef_line = lineno; |
---|
| 860 | c = inf_scan_ident (&buf, inf_skip_spaces (c)); |
---|
| 861 | if (SSTRING_LENGTH (&buf) == 0 || c == EOF) |
---|
| 862 | return 0; |
---|
| 863 | protect_name = xstrdup (buf.base); |
---|
| 864 | |
---|
| 865 | INF_UNGET (c); |
---|
| 866 | c = inf_read_upto (&buf, '\n'); |
---|
| 867 | if (c == EOF) |
---|
| 868 | return 0; |
---|
| 869 | lineno++; |
---|
| 870 | |
---|
| 871 | for (;;) |
---|
| 872 | { |
---|
| 873 | c = inf_skip_spaces (' '); |
---|
| 874 | if (c == EOF) |
---|
| 875 | return 0; |
---|
| 876 | if (c == '\n') |
---|
| 877 | { |
---|
| 878 | lineno++; |
---|
| 879 | continue; |
---|
| 880 | } |
---|
| 881 | if (c != '#') |
---|
| 882 | goto skip_to_eol; |
---|
| 883 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
---|
| 884 | if (SSTRING_LENGTH (&buf) == 0) |
---|
| 885 | ; |
---|
| 886 | else if (!strcmp (buf.base, "ifndef") |
---|
| 887 | || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) |
---|
| 888 | { |
---|
| 889 | if_nesting++; |
---|
| 890 | } |
---|
| 891 | else if (!strcmp (buf.base, "endif")) |
---|
| 892 | { |
---|
| 893 | if_nesting--; |
---|
| 894 | if (if_nesting == 0) |
---|
| 895 | break; |
---|
| 896 | } |
---|
| 897 | else if (!strcmp (buf.base, "else")) |
---|
| 898 | { |
---|
| 899 | if (if_nesting == 1) |
---|
| 900 | return 0; |
---|
| 901 | } |
---|
| 902 | else if (!strcmp (buf.base, "define")) |
---|
| 903 | { |
---|
| 904 | if (if_nesting != 1) |
---|
| 905 | goto skip_to_eol; |
---|
| 906 | c = inf_skip_spaces (c); |
---|
| 907 | c = inf_scan_ident (&buf, c); |
---|
| 908 | if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) |
---|
| 909 | define_seen = 1; |
---|
| 910 | } |
---|
| 911 | skip_to_eol: |
---|
| 912 | for (;;) |
---|
| 913 | { |
---|
| 914 | if (c == '\n' || c == EOF) |
---|
| 915 | break; |
---|
| 916 | c = INF_GET (); |
---|
| 917 | } |
---|
| 918 | if (c == EOF) |
---|
| 919 | return 0; |
---|
| 920 | lineno++; |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | if (!define_seen) |
---|
| 924 | return 0; |
---|
| 925 | *endif_line = lineno; |
---|
| 926 | /* Skip final white space (including comments). */ |
---|
| 927 | for (;;) |
---|
| 928 | { |
---|
| 929 | c = inf_skip_spaces (' '); |
---|
| 930 | if (c == EOF) |
---|
| 931 | break; |
---|
| 932 | if (c != '\n') |
---|
| 933 | return 0; |
---|
| 934 | } |
---|
| 935 | |
---|
| 936 | return 1; |
---|
| 937 | } |
---|
| 938 | |
---|
| 939 | int |
---|
| 940 | main (argc, argv) |
---|
| 941 | int argc; |
---|
| 942 | char **argv; |
---|
| 943 | { |
---|
| 944 | int inf_fd; |
---|
| 945 | struct stat sbuf; |
---|
| 946 | int c; |
---|
| 947 | int i, done; |
---|
| 948 | const char *cptr, **pptr; |
---|
| 949 | int ifndef_line; |
---|
| 950 | int endif_line; |
---|
| 951 | long to_read; |
---|
| 952 | long int inf_size; |
---|
| 953 | |
---|
| 954 | if (argv[0] && argv[0][0]) |
---|
| 955 | { |
---|
| 956 | register char *p; |
---|
| 957 | |
---|
| 958 | progname = 0; |
---|
| 959 | for (p = argv[0]; *p; p++) |
---|
| 960 | if (*p == '/') |
---|
| 961 | progname = p; |
---|
| 962 | progname = progname ? progname+1 : argv[0]; |
---|
| 963 | } |
---|
| 964 | |
---|
| 965 | if (argc < 4) |
---|
| 966 | { |
---|
| 967 | fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", |
---|
| 968 | progname); |
---|
| 969 | exit (-1); |
---|
| 970 | } |
---|
| 971 | |
---|
| 972 | inc_filename = argv[1]; |
---|
| 973 | inc_filename_length = strlen (inc_filename); |
---|
| 974 | |
---|
| 975 | #ifdef FIXPROTO_IGNORE_LIST |
---|
| 976 | for (i = 0; files_to_ignore[i] != NULL; i++) |
---|
| 977 | { |
---|
| 978 | char *ignore_name = files_to_ignore[i]; |
---|
| 979 | int ignore_len = strlen (ignore_name); |
---|
| 980 | if (strncmp (inc_filename, ignore_name, ignore_len) == 0) |
---|
| 981 | { |
---|
| 982 | if (ignore_name[ignore_len-1] == '/' |
---|
| 983 | || inc_filename[ignore_len] == '\0') |
---|
| 984 | { |
---|
| 985 | if (verbose) |
---|
| 986 | fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); |
---|
| 987 | exit (0); |
---|
| 988 | } |
---|
| 989 | } |
---|
| 990 | |
---|
| 991 | } |
---|
| 992 | #endif |
---|
| 993 | |
---|
| 994 | if (strcmp (inc_filename, "sys/stat.h") == 0) |
---|
| 995 | special_file_handling = sys_stat_h; |
---|
| 996 | else if (strcmp (inc_filename, "errno.h") == 0) |
---|
| 997 | special_file_handling = errno_h, missing_errno = 1; |
---|
| 998 | else if (strcmp (inc_filename, "stdio.h") == 0) |
---|
| 999 | special_file_handling = stdio_h; |
---|
| 1000 | include_entry = std_include_table; |
---|
| 1001 | while (include_entry->name != NULL |
---|
| 1002 | && strcmp (inc_filename, include_entry->name) != 0) |
---|
| 1003 | include_entry++; |
---|
| 1004 | |
---|
| 1005 | required_functions_list = include_entry->required; |
---|
| 1006 | |
---|
| 1007 | /* Count and mark the prototypes required for this include file. */ |
---|
| 1008 | for (cptr = required_functions_list; *cptr!= '\0'; ) |
---|
| 1009 | { |
---|
| 1010 | int name_len = strlen (cptr); |
---|
| 1011 | struct fn_decl *fn = lookup_std_proto (cptr, name_len); |
---|
| 1012 | required_unseen_count++; |
---|
| 1013 | if (fn == NULL) |
---|
| 1014 | fprintf (stderr, "Internal error: No prototype for %s\n", cptr); |
---|
| 1015 | else |
---|
| 1016 | SET_REQUIRED (fn); |
---|
| 1017 | cptr += name_len + 1; |
---|
| 1018 | } |
---|
| 1019 | |
---|
| 1020 | read_scan_file (argv[2], argc - 4, argv + 4); |
---|
| 1021 | |
---|
| 1022 | inf_fd = open (argv[2], O_RDONLY, 0666); |
---|
| 1023 | if (inf_fd < 0) |
---|
| 1024 | { |
---|
| 1025 | fprintf (stderr, "%s: Cannot open '%s' for reading -", |
---|
| 1026 | progname, argv[2]); |
---|
| 1027 | perror (NULL); |
---|
| 1028 | exit (-1); |
---|
| 1029 | } |
---|
| 1030 | if (fstat (inf_fd, &sbuf) < 0) |
---|
| 1031 | { |
---|
| 1032 | fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); |
---|
| 1033 | perror (NULL); |
---|
| 1034 | exit (-1); |
---|
| 1035 | } |
---|
| 1036 | inf_size = sbuf.st_size; |
---|
| 1037 | inf_buffer = (char*) xmalloc (inf_size + 2); |
---|
| 1038 | inf_buffer[inf_size] = '\n'; |
---|
| 1039 | inf_buffer[inf_size + 1] = '\0'; |
---|
| 1040 | inf_limit = inf_buffer + inf_size; |
---|
| 1041 | inf_ptr = inf_buffer; |
---|
| 1042 | |
---|
| 1043 | to_read = inf_size; |
---|
| 1044 | while (to_read > 0) |
---|
| 1045 | { |
---|
| 1046 | long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); |
---|
| 1047 | if (i < 0) |
---|
| 1048 | { |
---|
| 1049 | fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); |
---|
| 1050 | perror (NULL); |
---|
| 1051 | exit (-1); |
---|
| 1052 | } |
---|
| 1053 | if (i == 0) |
---|
| 1054 | { |
---|
| 1055 | inf_size -= to_read; |
---|
| 1056 | break; |
---|
| 1057 | } |
---|
| 1058 | to_read -= i; |
---|
| 1059 | } |
---|
| 1060 | |
---|
| 1061 | close (inf_fd); |
---|
| 1062 | |
---|
| 1063 | /* If file doesn't end with '\n', add one. */ |
---|
| 1064 | if (inf_limit > inf_buffer && inf_limit[-1] != '\n') |
---|
| 1065 | inf_limit++; |
---|
| 1066 | |
---|
| 1067 | unlink (argv[3]); |
---|
| 1068 | outf = fopen (argv[3], "w"); |
---|
| 1069 | if (outf == NULL) |
---|
| 1070 | { |
---|
| 1071 | fprintf (stderr, "%s: Cannot open '%s' for writing -", |
---|
| 1072 | progname, argv[3]); |
---|
| 1073 | perror (NULL); |
---|
| 1074 | exit (-1); |
---|
| 1075 | } |
---|
| 1076 | |
---|
| 1077 | lineno = 1; |
---|
| 1078 | |
---|
| 1079 | if (check_protection (&ifndef_line, &endif_line)) |
---|
| 1080 | { |
---|
| 1081 | lbrac_line = ifndef_line+1; |
---|
| 1082 | rbrac_line = endif_line; |
---|
| 1083 | } |
---|
| 1084 | else |
---|
| 1085 | { |
---|
| 1086 | lbrac_line = 1; |
---|
| 1087 | rbrac_line = -1; |
---|
| 1088 | } |
---|
| 1089 | |
---|
| 1090 | /* Reset input file. */ |
---|
| 1091 | inf_ptr = inf_buffer; |
---|
| 1092 | lineno = 1; |
---|
| 1093 | |
---|
| 1094 | for (;;) |
---|
| 1095 | { |
---|
| 1096 | if (lineno == lbrac_line) |
---|
| 1097 | write_lbrac (); |
---|
| 1098 | if (lineno == rbrac_line) |
---|
| 1099 | write_rbrac (); |
---|
| 1100 | for (;;) |
---|
| 1101 | { |
---|
| 1102 | struct fn_decl *fn; |
---|
| 1103 | c = INF_GET (); |
---|
| 1104 | if (c == EOF) |
---|
| 1105 | break; |
---|
| 1106 | if (isalpha (c) || c == '_') |
---|
| 1107 | { |
---|
| 1108 | c = inf_scan_ident (&buf, c); |
---|
| 1109 | INF_UNGET (c); |
---|
| 1110 | fputs (buf.base, outf); |
---|
| 1111 | fn = lookup_std_proto (buf.base, strlen (buf.base)); |
---|
| 1112 | /* We only want to edit the declaration matching the one |
---|
| 1113 | seen by scan-decls, as there can be multiple |
---|
| 1114 | declarations, selected by #ifdef __STDC__ or whatever. */ |
---|
| 1115 | if (fn && fn->partial && fn->partial->line_seen == lineno) |
---|
| 1116 | { |
---|
| 1117 | c = inf_skip_spaces (' '); |
---|
| 1118 | if (c == EOF) |
---|
| 1119 | break; |
---|
| 1120 | if (c == '(') |
---|
| 1121 | { |
---|
| 1122 | c = inf_skip_spaces (' '); |
---|
| 1123 | if (c == ')') |
---|
| 1124 | { |
---|
| 1125 | fprintf (outf, " _PARAMS((%s))", fn->params); |
---|
| 1126 | } |
---|
| 1127 | else |
---|
| 1128 | { |
---|
| 1129 | putc ('(', outf); |
---|
| 1130 | INF_UNGET (c); |
---|
| 1131 | } |
---|
| 1132 | } |
---|
| 1133 | else |
---|
| 1134 | fprintf (outf, " %c", c); |
---|
| 1135 | } |
---|
| 1136 | } |
---|
| 1137 | else |
---|
| 1138 | { |
---|
| 1139 | putc (c, outf); |
---|
| 1140 | if (c == '\n') |
---|
| 1141 | break; |
---|
| 1142 | } |
---|
| 1143 | } |
---|
| 1144 | if (c == EOF) |
---|
| 1145 | break; |
---|
| 1146 | lineno++; |
---|
| 1147 | } |
---|
| 1148 | if (rbrac_line < 0) |
---|
| 1149 | write_rbrac (); |
---|
| 1150 | |
---|
| 1151 | fclose (outf); |
---|
| 1152 | |
---|
| 1153 | return 0; |
---|
| 1154 | } |
---|
| 1155 | |
---|
| 1156 | /* Stub error functions. These replace cpperror.c, |
---|
| 1157 | because we want to suppress error messages. */ |
---|
| 1158 | |
---|
| 1159 | void |
---|
| 1160 | cpp_file_line_for_message (pfile, filename, line, column) |
---|
| 1161 | cpp_reader *pfile; |
---|
| 1162 | char *filename; |
---|
| 1163 | int line, column; |
---|
| 1164 | { |
---|
| 1165 | if (!verbose) |
---|
| 1166 | return; |
---|
| 1167 | if (column > 0) |
---|
| 1168 | fprintf (stderr, "%s:%d:%d: ", filename, line, column); |
---|
| 1169 | else |
---|
| 1170 | fprintf (stderr, "%s:%d: ", filename, line); |
---|
| 1171 | } |
---|
| 1172 | |
---|
| 1173 | void |
---|
| 1174 | cpp_print_containing_files (pfile) |
---|
| 1175 | cpp_reader *pfile; |
---|
| 1176 | { |
---|
| 1177 | } |
---|
| 1178 | |
---|
| 1179 | /* IS_ERROR is 1 for error, 0 for warning */ |
---|
| 1180 | void cpp_message (pfile, is_error, msg, arg1, arg2, arg3) |
---|
| 1181 | int is_error; |
---|
| 1182 | cpp_reader *pfile; |
---|
| 1183 | char *msg; |
---|
| 1184 | char *arg1, *arg2, *arg3; |
---|
| 1185 | { |
---|
| 1186 | if (is_error) |
---|
| 1187 | pfile->errors++; |
---|
| 1188 | if (!verbose) |
---|
| 1189 | return; |
---|
| 1190 | if (!is_error) |
---|
| 1191 | fprintf (stderr, "warning: "); |
---|
| 1192 | fprintf (stderr, msg, arg1, arg2, arg3); |
---|
| 1193 | fprintf (stderr, "\n"); |
---|
| 1194 | } |
---|
| 1195 | |
---|
| 1196 | void |
---|
| 1197 | fatal (str, arg) |
---|
| 1198 | char *str, *arg; |
---|
| 1199 | { |
---|
| 1200 | fprintf (stderr, "%s: %s: ", progname, inc_filename); |
---|
| 1201 | fprintf (stderr, str, arg); |
---|
| 1202 | fprintf (stderr, "\n"); |
---|
| 1203 | exit (FATAL_EXIT_CODE); |
---|
| 1204 | } |
---|
| 1205 | |
---|
| 1206 | void |
---|
| 1207 | cpp_pfatal_with_name (pfile, name) |
---|
| 1208 | cpp_reader *pfile; |
---|
| 1209 | char *name; |
---|
| 1210 | { |
---|
| 1211 | cpp_perror_with_name (pfile, name); |
---|
| 1212 | exit (FATAL_EXIT_CODE); |
---|
| 1213 | } |
---|