2 /* Install modified versions of certain ANSI-incompatible system header
3 files which are fixed to work correctly with ANSI C and placed in a
4 directory that GCC will search.
6 Copyright (C) 1999, 2000, 2001, 2004, 2009 Free Software Foundation, Inc.
8 This file is part of GCC.
10 GCC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3, or (at your option)
15 GCC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GCC; see the file COPYING3. If not see
22 <http://www.gnu.org/licenses/>. */
26 /* * * * * * * * * * * * *
28 load_file_data loads all the contents of a file into malloc-ed memory.
29 Its argument is the file pointer of the file to read in; the returned
30 result is the NUL terminated contents of the file. The file
31 is presumed to be an ASCII text file containing no NULs. */
34 load_file_data (FILE* fp)
36 char *pz_data = (char*)NULL;
37 int space_left = -1; /* allow for terminating NUL */
38 size_t space_used = 0;
40 if (fp == (FILE*)NULL)
47 if (space_left < 1024)
50 pz_data = XRESIZEVEC (char, pz_data, space_left + space_used + 1 );
52 size_read = fread (pz_data + space_used, 1, space_left, fp);
63 fprintf (stderr, "error %d (%s) reading input\n", err,
65 free ((void *) pz_data);
70 space_left -= size_read;
71 space_used += size_read;
72 } while (! feof (fp));
74 pz_data = XRESIZEVEC (char, pz_data, space_used+1 );
75 pz_data[ space_used ] = NUL;
80 #ifdef IS_CXX_HEADER_NEEDED
82 is_cxx_header (tCC* fname, tCC* text)
84 /* First, check to see if the file is in a C++ directory */
89 case 'C': /* check for "CC/" */
90 if ((fname[0] == 'C') && (fname[1] == '/'))
94 case 'x': /* check for "xx/" */
95 if ((fname[0] == 'x') && (fname[1] == '/'))
99 case '+': /* check for "++" */
109 /* Or it might contain one of several phrases which indicate C++ code.
110 Currently recognized are:
112 -*- (Mode: )? C++ -*- (emacs mode marker)
117 extern[ \t]*\"C\\+\\+\"|\
118 -\\*-[ \t]*([mM]ode:[ \t]*)?[cC]\\+\\+[; \t]*-\\*-|\
121 (public|private|protected):|\
122 ^[ \t]*#[ \t]*pragma[ \t]+(interface|implementation)\
124 static regex_t cxxre;
128 compile_re (cxxpat, &cxxre, 0, "contents check", "is_cxx_header");
130 if (xregexec (&cxxre, text, 0, 0, 0) == 0)
136 #endif /* CXX_TYPE_NEEDED */
138 #ifdef SKIP_QUOTE_NEEDED
140 * Skip over a quoted string. Single quote strings may
141 * contain multiple characters if the first character is
142 * a backslash. Especially a backslash followed by octal digits.
143 * We are not doing a correctness syntax check here.
146 skip_quote(char q, char* text )
154 text++; /* skip over whatever character follows */
171 #endif /* SKIP_QUOTE_NEEDED */
173 /* * * * * * * * * * * * *
175 Compile one regular expression pattern for later use. PAT contains
176 the pattern, RE points to a regex_t structure (which should have
177 been bzeroed). MATCH is 1 if we need to know where the regex
178 matched, 0 if not. If xregcomp fails, prints an error message and
179 aborts; E1 and E2 are strings to shove into the error message.
181 The patterns we search for are all egrep patterns.
182 REG_EXTENDED|REG_NEWLINE produces identical regex syntax/semantics
183 to egrep (verified from 4.4BSD Programmer's Reference Manual). */
185 compile_re( tCC* pat, regex_t* re, int match, tCC* e1, tCC* e2 )
187 tSCC z_bad_comp[] = "fixincl ERROR: cannot compile %s regex for %s\n\
188 \texpr = `%s'\n\terror %s\n";
191 flags = (match ? REG_EXTENDED|REG_NEWLINE
192 : REG_EXTENDED|REG_NEWLINE|REG_NOSUB);
193 err = xregcomp (re, pat, flags);
198 regerror (err, re, rerrbuf, 1024);
199 fprintf (stderr, z_bad_comp, e1, e2, pat, rerrbuf);
204 /* * * * * * * * * * * * *
206 Helper routine and data for the machine_name test and fix. */
208 tSCC mn_label_pat[] = "^[ \t]*#[ \t]*(if|ifdef|ifndef)[ \t]+";
209 static regex_t mn_label_re;
210 static regex_t mn_name_re;
212 static int mn_compiled = 0;
215 mn_get_regexps(regex_t** label_re, regex_t** name_re, tCC* who )
217 if (! pz_mn_name_pat)
222 compile_re (mn_label_pat, &mn_label_re, 1, "label pattern", who);
223 compile_re (pz_mn_name_pat, &mn_name_re, 1, "name pattern", who);
226 *label_re = &mn_label_re;
227 *name_re = &mn_name_re;
232 #ifdef SEPARATE_FIX_PROC
235 make_raw_shell_str( char* pz_d, tCC* pz_s, size_t smax )
239 char* pz_d_start = pz_d;
241 smax--; /* adjust for trailing NUL */
243 dtaSize = strlen( pz_s ) + 3;
246 const char* pz = pz_s - 1;
249 pz = strchr( pz+1, '\'' );
250 if (pz == (char*)NULL)
252 dtaSize += sizeof( zQ )-1;
261 if ((size_t) (pz_d - pz_d_start) >= smax)
263 switch (*(pz_d++) = *(pz_s++)) {
268 if ((size_t) (pz_d - pz_d_start) >= smax - sizeof( zQ )-1)
270 strcpy( pz_d-1, zQ );
271 pz_d += sizeof( zQ )-2;