mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
a4cd5630b0
non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/* pcp.h -- Describes the format of a precompiled file
|
|
Copyright (C) 1990 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. */
|
|
|
|
|
|
|
|
/* Structure allocated for every string in a precompiled file */
|
|
typedef struct stringdef STRINGDEF;
|
|
struct stringdef
|
|
{
|
|
U_CHAR *contents; /* String to include */
|
|
int len; /* Its length */
|
|
int writeflag; /* Whether we write this */
|
|
int lineno; /* Linenumber of source file */
|
|
U_CHAR *filename; /* Name of source file */
|
|
STRINGDEF *chain; /* Global list of strings in natural order */
|
|
int output_mark; /* Where in the output this goes */
|
|
};
|
|
|
|
typedef struct keydef KEYDEF;
|
|
struct keydef
|
|
{
|
|
STRINGDEF *str;
|
|
KEYDEF *chain;
|
|
};
|
|
|
|
/* Format: */
|
|
/* A precompiled file starts with a series of #define and #undef
|
|
statements:
|
|
#define MAC DEF --- Indicates MAC must be defined with defn DEF
|
|
#define MAC --- Indicates MAC must be defined with any defn
|
|
#undef MAC --- Indicates MAC cannot be defined
|
|
|
|
These preconditions must be true for a precompiled file to be used.
|
|
The preconditions section is null terminated. */
|
|
|
|
/* Then, there is a four byte number (in network byte order) which */
|
|
/* indicates the number of strings the file contains. */
|
|
|
|
/* Each string contains a STRINGDEF structure. The only component of */
|
|
/* the STRINGDEF structure which is used is the lineno field, which */
|
|
/* should hold the line number in the original header file. */
|
|
/* Then follows the string, followed by a null. Then comes a four */
|
|
/* byte number (again, in network byte order) indicating the number */
|
|
/* of keys for this string. Each key is a KEYDEF structure, with */
|
|
/* irrelevant contents, followed by the null-terminated string. */
|
|
|
|
/* If the number of keys is 0, then there are no keys for the string, */
|
|
/* in other words, the string will never be included. If the number */
|
|
/* of keys is -1, this is a special flag indicating there are no keys */
|
|
/* in the file, and the string is mandatory (that is, it must be */
|
|
/* included regardless in the included output). */
|
|
|
|
/* A file, then, looks like this:
|
|
|
|
Precondition 1
|
|
Precondition 2
|
|
.
|
|
.
|
|
.
|
|
<NUL>
|
|
Number of strings
|
|
STRINGDEF
|
|
String . . . <NUL>
|
|
Number of keys
|
|
KEYDEF
|
|
Key . . . <NUL>
|
|
KEYDEF
|
|
Key . . . <NUL>
|
|
.
|
|
.
|
|
.
|
|
STRINGDEF
|
|
String . . . <NUL>
|
|
Number of keys
|
|
KEYDEF
|
|
Key . . . <NUL>
|
|
.
|
|
.
|
|
.
|
|
.
|
|
.
|
|
.
|
|
|
|
*/
|