fixlib.h revision 1.1.1.1 
1
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.
5
6   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004
7   Free Software Foundation, Inc.
8
9This file is part of GCC.
10
11GCC is free software; you can redistribute it and/or modify
12it under the terms of the GNU General Public License as published by
13the Free Software Foundation; either version 2, or (at your option)
14any later version.
15
16GCC is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
22along with GCC; see the file COPYING.  If not, write to
23the Free Software Foundation, 51 Franklin Street, Fifth Floor,
24Boston, MA 02110-1301, USA.  */
25
26#ifndef GCC_FIXLIB_H
27#define GCC_FIXLIB_H
28
29#include "config.h"
30#include "system.h"
31#include <signal.h>
32
33#include "xregex.h"
34#include "libiberty.h"
35
36#ifndef STDIN_FILENO
37# define STDIN_FILENO   0
38#endif
39#ifndef STDOUT_FILENO
40# define STDOUT_FILENO  1
41#endif
42
43#if ! defined( SIGCHLD ) && defined( SIGCLD )
44#  define SIGCHLD SIGCLD
45#endif
46
47#ifndef SIGQUIT
48#define SIGQUIT SIGTERM
49#endif
50#ifndef SIGIOT
51#define SIGIOT SIGTERM
52#endif
53#ifndef SIGPIPE
54#define SIGPIPE SIGTERM
55#endif
56#ifndef SIGALRM
57#define SIGALRM SIGTERM
58#endif
59#ifndef SIGKILL
60#define SIGKILL SIGTERM
61#endif
62
63typedef int t_success;
64
65#define FAILURE         (-1)
66#define SUCCESS           0
67#define PROBLEM           1
68
69#define SUCCEEDED(p)    ((p) == SUCCESS)
70#define SUCCESSFUL(p)   SUCCEEDED (p)
71#define FAILED(p)       ((p) < SUCCESS)
72#define HADGLITCH(p)    ((p) > SUCCESS)
73
74#ifndef DEBUG
75# define STATIC static
76#else
77# define STATIC
78#endif
79
80#define tSCC static const char
81#define tCC  const char
82#define tSC  static char
83
84/* If this particular system's header files define the macro `MAXPATHLEN',
85   we happily take advantage of it; otherwise we use a value which ought
86   to be large enough.  */
87#ifndef MAXPATHLEN
88# define MAXPATHLEN     4096
89#endif
90
91#ifndef EXIT_SUCCESS
92# define EXIT_SUCCESS 0
93#endif
94#ifndef EXIT_FAILURE
95# define EXIT_FAILURE 1
96#endif
97
98#define EXIT_BROKEN  3
99
100#define NUL             '\0'
101
102#ifndef NOPROCESS
103#define NOPROCESS	((pid_t) -1)
104#define NULLPROCESS	((pid_t)0)
105
106#define EXIT_PANIC	99
107#endif /* NOPROCESS */
108
109#define IGNORE_ARG(a)   ((void)(a))
110
111typedef enum t_bool
112{
113  BOOL_FALSE, BOOL_TRUE
114} t_bool;
115
116typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */
117
118#define APPLY_FIX 0
119#define SKIP_FIX  1
120
121#define ENV_TABLE                                    \
122  _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
123         "output from config.guess" )                \
124                                                     \
125  _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
126         "directory of fixincl and applyfix" )       \
127                                                     \
128  _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
129         "directory of original files" )             \
130                                                     \
131  _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
132         "current directory for fixincl" )           \
133                                                     \
134  _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
135         "output directory" )                        \
136                                                     \
137  _ENV_( pz_mn_name_pat, BOOL_FALSE, "MN_NAME_PAT",  \
138         "regex matching forbidden identifiers" )    \
139                                                     \
140  _ENV_( pz_verbose,  BOOL_FALSE, "VERBOSE",         \
141         "amount of user entertainment" )            \
142                                                     \
143  _ENV_( pz_find_base, BOOL_TRUE, "FIND_BASE",       \
144         "leader to trim from file names" )
145
146#define _ENV_(v,m,n,t)   extern tCC* v;
147ENV_TABLE
148#undef _ENV_
149
150/*  Test Descriptor
151
152    Each fix may have associated tests that determine
153    whether the fix needs to be applied or not.
154    Each test has a type (from the te_test_type enumeration);
155    associated test text; and, if the test is TT_EGREP or
156    the negated form TT_NEGREP, a pointer to the compiled
157    version of the text string.
158
159    */
160typedef enum
161{
162  TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
163} te_test_type;
164
165typedef struct test_desc tTestDesc;
166
167struct test_desc
168{
169  te_test_type type;
170  const char *pz_test_text;
171  regex_t *p_test_regex;
172};
173
174typedef struct patch_desc tPatchDesc;
175
176/*  Fix Descriptor
177
178    Everything you ever wanted to know about how to apply
179    a particular fix (which files, how to qualify them,
180    how to actually make the fix, etc...)
181
182    NB:  the FD_ defines are BIT FLAGS, even though
183         some are mutually exclusive
184
185    */
186#define FD_MACH_ONLY      0x0000
187#define FD_MACH_IFNOT     0x0001
188#define FD_SHELL_SCRIPT   0x0002
189#define FD_SUBROUTINE     0x0004
190#define FD_REPLACEMENT    0x0008
191#define FD_SKIP_TEST      0x8000
192
193typedef struct fix_desc tFixDesc;
194struct fix_desc
195{
196  tCC*        fix_name;       /* Name of the fix */
197  tCC*        file_list;      /* List of files it applies to */
198  tCC**       papz_machs;     /* List of machine/os-es it applies to */
199  int         test_ct;
200  int         fd_flags;
201  tTestDesc*  p_test_desc;
202  tCC**       patch_args;
203  long        unused;
204};
205
206typedef struct {
207  int         type_name_len;
208  tCC*        pz_type;
209  tCC*        pz_TYPE;
210  tCC*        pz_gtype;
211} t_gnu_type_map;
212
213extern int gnu_type_map_ct;
214
215#ifdef HAVE_MMAP_FILE
216#define UNLOAD_DATA() do { if (curr_data_mapped) { \
217  munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
218  else free ((void*)pz_curr_data); } while(0)
219#else
220#define UNLOAD_DATA() free ((void*)pz_curr_data)
221#endif
222
223/*
224 *  Exported procedures
225 */
226char * load_file_data ( FILE* fp );
227
228#ifdef IS_CXX_HEADER_NEEDED
229t_bool is_cxx_header ( tCC* filename, tCC* filetext );
230#endif /* IS_CXX_HEADER_NEEDED */
231
232#ifdef SKIP_QUOTE_NEEDED
233tCC*   skip_quote ( char  q, char* text );
234#endif
235
236void   compile_re ( tCC* pat, regex_t* re, int match, tCC *e1, tCC *e2 );
237
238void   apply_fix ( tFixDesc* p_fixd, tCC* filname );
239apply_fix_p_t
240       run_test ( tCC* t_name, tCC* f_name, tCC* text );
241
242#ifdef SEPARATE_FIX_PROC
243char*  make_raw_shell_str ( char* pz_d, tCC* pz_s, size_t smax );
244#endif
245
246t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
247
248void   initialize_opts ( void );
249#endif /* ! GCC_FIXLIB_H */
250