/* Install modified versions of certain ANSI-incompatible system header
   files which are fixed to work correctly with ANSI C and placed in a
   directory that GNU C will search.

   Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#ifndef GCC_FIXLIB_H
#define GCC_FIXLIB_H

#include "auto-host.h"
#include "ansidecl.h"
#include "config.h"
#include "system.h"

#include "gnu-regex.h"
#include "machname.h"
#include "libiberty.h"

#ifndef STDIN_FILENO
# define STDIN_FILENO   0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO  1
#endif

typedef int t_success;

#define FAILURE         (-1)
#define SUCCESS           0
#define PROBLEM           1

#define SUCCEEDED(p)    ((p) == SUCCESS)
#define SUCCESSFUL(p)   SUCCEEDED (p)
#define FAILED(p)       ((p) < SUCCESS)
#define HADGLITCH(p)    ((p) > SUCCESS)

#ifndef DEBUG
# define STATIC static
#else
# define STATIC
#endif

#define tSCC static const char
#define tCC  const char
#define tSC  static char

/* If this particular system's header files define the macro `MAXPATHLEN',
   we happily take advantage of it; otherwise we use a value which ought
   to be large enough.  */
#ifndef MAXPATHLEN
# define MAXPATHLEN     4096
#endif

#ifndef EXIT_SUCCESS
# define EXIT_SUCCESS 0
#endif
#ifndef EXIT_FAILURE
# define EXIT_FAILURE 1
#endif

#define EXIT_BROKEN  3

#define NUL             '\0'

#ifndef NOPROCESS
#define NOPROCESS	((pid_t) -1)
#define NULLPROCESS	((pid_t)0)

#define EXIT_PANIC	99
#endif /* NOPROCESS */

#define IGNORE_ARG(a)   ((void)(a))

typedef enum t_bool
{
  BOOL_FALSE, BOOL_TRUE
} t_bool;

typedef int apply_fix_p_t;  /* Apply Fix Predicate Type */

#define APPLY_FIX 0
#define SKIP_FIX  1

#define ENV_TABLE                                    \
  _ENV_( pz_machine,   BOOL_TRUE, "TARGET_MACHINE",  \
         "output from config.guess" )                \
                                                     \
  _ENV_( pz_orig_dir,  BOOL_TRUE, "ORIGDIR",         \
         "directory of fixincl and applyfix" )       \
                                                     \
  _ENV_( pz_src_dir,   BOOL_TRUE, "SRCDIR",          \
         "directory of original files" )             \
                                                     \
  _ENV_( pz_input_dir, BOOL_TRUE, "INPUT",           \
         "current directory for fixincl" )           \
                                                     \
  _ENV_( pz_dest_dir,  BOOL_TRUE, "DESTDIR",         \
         "output directory" )                        \
                                                     \
  _ENV_( pz_verbose,  BOOL_FALSE, "VERBOSE",         \
         "amount of user entertainment" )            \
                                                     \
  _ENV_( pz_find_base, BOOL_TRUE, "FIND_BASE",       \
         "leader to trim from file names" )

/*  Test Descriptor

    Each fix may have associated tests that determine
    whether the fix needs to be applied or not.
    Each test has a type (from the te_test_type enumeration);
    associated test text; and, if the test is TT_EGREP or
    the negated form TT_NEGREP, a pointer to the compiled
    version of the text string.

    */
typedef enum
{
  TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION
} te_test_type;

typedef struct test_desc tTestDesc;

struct test_desc
{
  te_test_type type;
  const char *pz_test_text;
  regex_t *p_test_regex;
};

typedef struct patch_desc tPatchDesc;

/*  Fix Descriptor

    Everything you ever wanted to know about how to apply
    a particular fix (which files, how to qualify them,
    how to actually make the fix, etc...)

    NB:  the FD_ defines are BIT FLAGS, even though
         some are mutually exclusive

    */
#define FD_MACH_ONLY      0x0000
#define FD_MACH_IFNOT     0x0001
#define FD_SHELL_SCRIPT   0x0002
#define FD_SUBROUTINE     0x0004
#define FD_REPLACEMENT    0x0008
#define FD_SKIP_TEST      0x8000

typedef struct fix_desc tFixDesc;
struct fix_desc
{
  tCC*        fix_name;       /* Name of the fix */
  tCC*        file_list;      /* List of files it applies to */
  tCC**       papz_machs;     /* List of machine/os-es it applies to */
  int         test_ct;
  int         fd_flags;
  tTestDesc*  p_test_desc;
  tCC**       patch_args;
  long        unused;
};

typedef struct {
  int         type_name_len;
  tCC*        pz_type;
  tCC*        pz_TYPE;
  tCC*        pz_gtype;
} t_gnu_type_map;

extern int gnu_type_map_ct;

#ifdef HAVE_MMAP_FILE
#define UNLOAD_DATA() do { if (curr_data_mapped) { \
  munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \
  else free ((void*)pz_curr_data); } while(0)
#else
#define UNLOAD_DATA() free ((void*)pz_curr_data)
#endif

/*
 *  Exported procedures
 */
char * load_file_data PARAMS(( FILE* fp ));

#ifdef IS_CXX_HEADER_NEEDED
t_bool is_cxx_header  PARAMS(( tCC* filename, tCC* filetext ));
#endif /* IS_CXX_HEADER_NEEDED */

#ifdef SKIP_QUOTE_NEEDED
tCC*   skip_quote  PARAMS(( char  q, char* text ));
#endif

void   compile_re  PARAMS(( tCC* pat, regex_t* re, int match,
                            tCC *e1, tCC *e2 ));

void   apply_fix   PARAMS(( tFixDesc* p_fixd, tCC* filname ));
apply_fix_p_t
       run_test    PARAMS(( tCC* t_name, tCC* f_name, tCC* text ));

#ifdef SEPARATE_FIX_PROC
char*  make_raw_shell_str
                   PARAMS(( char* pz_d, tCC* pz_s, size_t smax ));
#endif

#ifdef MN_NAME_PAT
void   mn_get_regexps
                   PARAMS(( regex_t** label_re, regex_t** name_re,
                            tCC *who ));
#endif
#endif /* ! GCC_FIXLIB_H */