1 /*****************************************************************************/
5 /* Error handling for the cc65 C compiler */
9 /* (C) 1998-2009, Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
53 /*****************************************************************************/
55 /*****************************************************************************/
59 /* Count of errors/warnings */
60 unsigned ErrorCount = 0;
61 unsigned WarningCount = 0;
63 /* Warning and error options */
64 IntStack WarnEnable = INTSTACK(1); /* Enable warnings */
65 IntStack WarningsAreErrors = INTSTACK(0); /* Treat warnings as errors */
66 IntStack WarnStructParam = INTSTACK(1); /* Warn about structs passed by val */
67 IntStack WarnUnusedLabel = INTSTACK(1); /* Warn about unused labels */
68 IntStack WarnUnusedParam = INTSTACK(1); /* Warn about unused parameters */
69 IntStack WarnUnusedVar = INTSTACK(1); /* Warn about unused variables */
70 IntStack WarnUnknownPragma = INTSTACK(1); /* Warn about unknown #pragmas */
72 /* Map the name of a warning to the intstack that holds its state */
73 typedef struct WarnMapEntry WarnMapEntry;
78 static WarnMapEntry WarnMap[] = {
79 /* Keep sorted, even if this isn't used for now */
80 { &WarningsAreErrors, "error" },
81 { &WarnStructParam, "struct-param" },
82 { &WarnUnknownPragma, "unknown-pragma" },
83 { &WarnUnusedLabel, "unused-label" },
84 { &WarnUnusedParam, "unused-param" },
85 { &WarnUnusedVar, "unused-var" },
90 /*****************************************************************************/
91 /* Handling of fatal errors */
92 /*****************************************************************************/
96 void Fatal (const char* Format, ...)
97 /* Print a message about a fatal error and die */
101 const char* FileName;
104 FileName = GetInputName (CurTok.LI);
105 LineNum = GetInputLine (CurTok.LI);
107 FileName = GetCurrentFile ();
108 LineNum = GetCurrentLine ();
111 fprintf (stderr, "%s(%u): Fatal: ", FileName, LineNum);
113 va_start (ap, Format);
114 vfprintf (stderr, Format, ap);
116 fprintf (stderr, "\n");
119 Print (stderr, 1, "Input: %.*s\n", (int) SB_GetLen (Line), SB_GetConstBuf (Line));
126 void Internal (const char* Format, ...)
127 /* Print a message about an internal compiler error and die. */
131 const char* FileName;
134 FileName = GetInputName (CurTok.LI);
135 LineNum = GetInputLine (CurTok.LI);
137 FileName = GetCurrentFile ();
138 LineNum = GetCurrentLine ();
141 fprintf (stderr, "%s(%u): Internal compiler error:\n",
144 va_start (ap, Format);
145 vfprintf (stderr, Format, ap);
147 fprintf (stderr, "\n");
150 fprintf (stderr, "\nInput: %.*s\n", (int) SB_GetLen (Line), SB_GetConstBuf (Line));
153 /* Use abort to create a core dump */
159 /*****************************************************************************/
160 /* Handling of errors */
161 /*****************************************************************************/
165 static void IntError (const char* Filename, unsigned LineNo, const char* Msg, va_list ap)
166 /* Print an error message - internal function*/
168 fprintf (stderr, "%s(%u): Error: ", Filename, LineNo);
169 vfprintf (stderr, Msg, ap);
170 fprintf (stderr, "\n");
173 Print (stderr, 1, "Input: %.*s\n", (int) SB_GetLen (Line), SB_GetConstBuf (Line));
176 if (ErrorCount > 10) {
177 Fatal ("Too many errors");
183 void Error (const char* Format, ...)
184 /* Print an error message */
187 va_start (ap, Format);
188 IntError (GetInputName (CurTok.LI), GetInputLine (CurTok.LI), Format, ap);
194 void LIError (const LineInfo* LI, const char* Format, ...)
195 /* Print an error message with the line info given explicitly */
198 va_start (ap, Format);
199 IntError (GetInputName (LI), GetInputLine (LI), Format, ap);
205 void PPError (const char* Format, ...)
206 /* Print an error message. For use within the preprocessor. */
209 va_start (ap, Format);
210 IntError (GetCurrentFile(), GetCurrentLine(), Format, ap);
216 /*****************************************************************************/
217 /* Handling of warnings */
218 /*****************************************************************************/
222 static void IntWarning (const char* Filename, unsigned LineNo, const char* Msg, va_list ap)
223 /* Print warning message - internal function. */
225 if (IS_Get (&WarningsAreErrors)) {
227 /* Treat the warning as an error */
228 IntError (Filename, LineNo, Msg, ap);
230 } else if (IS_Get (&WarnEnable)) {
232 fprintf (stderr, "%s(%u): Warning: ", Filename, LineNo);
233 vfprintf (stderr, Msg, ap);
234 fprintf (stderr, "\n");
237 Print (stderr, 1, "Input: %.*s\n", (int) SB_GetLen (Line), SB_GetConstBuf (Line));
246 void Warning (const char* Format, ...)
247 /* Print warning message. */
250 va_start (ap, Format);
251 IntWarning (GetInputName (CurTok.LI), GetInputLine (CurTok.LI), Format, ap);
257 void LIWarning (const LineInfo* LI, const char* Format, ...)
258 /* Print a warning message with the line info given explicitly */
261 va_start (ap, Format);
262 IntWarning (GetInputName (LI), GetInputLine (LI), Format, ap);
268 void PPWarning (const char* Format, ...)
269 /* Print warning message. For use within the preprocessor. */
272 va_start (ap, Format);
273 IntWarning (GetCurrentFile(), GetCurrentLine(), Format, ap);
279 IntStack* FindWarning (const char* Name)
280 /* Search for a warning in the WarnMap table and return a pointer to the
281 * intstack that holds its state. Return NULL if there is no such warning.
286 /* For now, do a linear search */
287 for (I = 0; I < sizeof(WarnMap) / sizeof (WarnMap[0]); ++I) {
288 if (strcmp (WarnMap[I].Name, Name) == 0) {
289 return WarnMap[I].Stack;
297 /*****************************************************************************/
299 /*****************************************************************************/
303 void ErrorReport (void)
304 /* Report errors (called at end of compile) */
306 Print (stdout, 1, "%u errors, %u warnings\n", ErrorCount, WarningCount);