1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/* Small compiler - Error message system
* In fact a very simple system, using only 'panic mode'.
*
* Copyright (c) ITB CompuPhase, 1997-2003
*
* This software is provided "as-is", without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in
* a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* Version: $Id: embryo_cc_sc5.c 61433 2011-07-16 23:19:02Z caro $
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "embryo_cc_sc.h"
#include "embryo_cc_sc5.scp"
static int errflag;
static int errstart; /* line number at which the instruction started */
/* error
*
* Outputs an error message (note: msg is passed optionally).
* If an error is found, the variable "errflag" is set and subsequent
* errors are ignored until lex() finds a semicolumn or a keyword
* (lex() resets "errflag" in that case).
*
* Global references: inpfname (referred to only)
* fline (referred to only)
* fcurrent (referred to only)
* errflag (altered)
*/
int
error(int number, ...)
{
static int lastline, lastfile, errorcount;
char *msg;
va_list argptr;
char string[1024];
int start;
/* errflag is reset on each semicolon.
* In a two-pass compiler, an error should not be reported twice. Therefore
* the error reporting is enabled only in the second pass (and only when
* actually producing output). Fatal errors may never be ignored.
*/
if (((errflag) || (sc_status != statWRITE)) &&
((number < 100) || (number >= 200)))
return 0;
if (number < 100)
{
msg = errmsg[number - 1];
errflag = TRUE; /* set errflag (skip rest of erroneous expression) */
errnum++;
}
else if (number < 200)
{
msg = fatalmsg[number - 100];
errnum++; /* a fatal error also counts as an error */
}
else
{
msg = warnmsg[number - 200];
warnnum++;
}
strexpand(string, (unsigned char *)msg, sizeof string, SCPACK_TABLE);
va_start(argptr, number);
start = (errstart == fline) ? -1 : errstart;
if (sc_error(number, string, inpfname, start, fline, argptr))
{
sc_closeasm(outf);
outf = NULL;
longjmp(errbuf, 3);
}
va_end(argptr);
if (((number >= 100) && (number < 200)) || (errnum > 250))
{
va_start(argptr, number);
sc_error(0, "\nCompilation aborted.", NULL, 0, 0, argptr);
va_end(argptr);
if (outf)
{
sc_closeasm(outf);
outf = NULL;
} /* if */
longjmp(errbuf, 2); /* fatal error, quit */
} /* if */
/* check whether we are seeing many errors on the same line */
if (((errstart < 0) && (lastline != fline)) ||
(lastline < errstart) || (lastline > fline) || (fcurrent != lastfile))
errorcount = 0;
lastline = fline;
lastfile = fcurrent;
if (number < 200)
errorcount++;
if (errorcount >= 3)
error(107); /* too many error/warning messages on one line */
return 0;
}
void
errorset(int code)
{
switch (code)
{
case sRESET:
errflag = FALSE; /* start reporting errors */
break;
case sFORCESET:
errflag = TRUE; /* stop reporting errors */
break;
case sEXPRMARK:
errstart = fline; /* save start line number */
break;
case sEXPRRELEASE:
errstart = -1; /* forget start line number */
break;
default:
break;
}
}
|
