misc/error.c

   1 /*
   2  * Log internal errors
   3  *
   4  * Copyright 1997 Andrew Taylor
   5  */
   6
   7 #include <stdlib.h>
   8 #include <string.h>
   9
  10 #include "windef.h"
  11 #include "stackframe.h"
  12 #include "debug.h"
  13
  14 #define ErrorString(manifest) { manifest, # manifest }
  15
  16 static const struct {
  17         int constant;
  18         const char *name;
  19 } ErrorStrings[] = {
  20
  21         ErrorString(ERR_GALLOC),
  22         ErrorString(ERR_GREALLOC),
  23         ErrorString(ERR_GLOCK),
  24         ErrorString(ERR_LALLOC),
  25         ErrorString(ERR_LREALLOC),
  26         ErrorString(ERR_LLOCK),
  27         ErrorString(ERR_ALLOCRES),
  28         ErrorString(ERR_LOCKRES),
  29         ErrorString(ERR_LOADMODULE),
  30         ErrorString(ERR_CREATEDLG),
  31         ErrorString(ERR_CREATEDLG2),
  32         ErrorString(ERR_REGISTERCLASS),
  33         ErrorString(ERR_DCBUSY),
  34         ErrorString(ERR_CREATEWND),
  35         ErrorString(ERR_STRUCEXTRA),
  36         ErrorString(ERR_LOADSTR),
  37         ErrorString(ERR_LOADMENU),
  38         ErrorString(ERR_NESTEDBEGINPAINT),
  39         ErrorString(ERR_BADINDEX),
  40         ErrorString(ERR_CREATEMENU),
  41         ErrorString(ERR_CREATEDC),
  42         ErrorString(ERR_CREATEMETA),
  43         ErrorString(ERR_DELOBJSELECTED),
  44         ErrorString(ERR_SELBITMAP)
  45 };
  46
  47 static const struct {
  48         int constant;
  49         const char *name;
  50 } ParamErrorStrings[] = {
  51
  52         ErrorString(ERR_BAD_VALUE),
  53         ErrorString(ERR_BAD_FLAGS),
  54         ErrorString(ERR_BAD_INDEX),
  55         ErrorString(ERR_BAD_DVALUE),
  56         ErrorString(ERR_BAD_DFLAGS),
  57         ErrorString(ERR_BAD_DINDEX),
  58         ErrorString(ERR_BAD_PTR),
  59         ErrorString(ERR_BAD_FUNC_PTR),
  60         ErrorString(ERR_BAD_SELECTOR),
  61         ErrorString(ERR_BAD_STRING_PTR),
  62         ErrorString(ERR_BAD_HANDLE),
  63         ErrorString(ERR_BAD_HINSTANCE),
  64         ErrorString(ERR_BAD_HMODULE),
  65         ErrorString(ERR_BAD_GLOBAL_HANDLE),
  66         ErrorString(ERR_BAD_LOCAL_HANDLE),
  67         ErrorString(ERR_BAD_ATOM),
  68         ErrorString(ERR_BAD_HFILE),
  69         ErrorString(ERR_BAD_HWND),
  70         ErrorString(ERR_BAD_HMENU),
  71         ErrorString(ERR_BAD_HCURSOR),
  72         ErrorString(ERR_BAD_HICON),
  73         ErrorString(ERR_BAD_HDWP),
  74         ErrorString(ERR_BAD_CID),
  75         ErrorString(ERR_BAD_HDRVR),
  76         ErrorString(ERR_BAD_COORDS),
  77         ErrorString(ERR_BAD_GDI_OBJECT),
  78         ErrorString(ERR_BAD_HDC),
  79         ErrorString(ERR_BAD_HPEN),
  80         ErrorString(ERR_BAD_HFONT),
  81         ErrorString(ERR_BAD_HBRUSH),
  82         ErrorString(ERR_BAD_HBITMAP),
  83         ErrorString(ERR_BAD_HRGN),
  84         ErrorString(ERR_BAD_HPALETTE),
  85         ErrorString(ERR_BAD_HMETAFILE)
  86 };
  87
  88 #undef  ErrorString
  89 #define ErrorStringCount (sizeof(ErrorStrings) / sizeof(ErrorStrings[0]))
  90 #define ParamErrorStringCount (sizeof(ParamErrorStrings) / sizeof(ParamErrorStrings[0]))
  91
  92 /***********************************************************************
  93 *       GetErrorString (internal)
  94 */
  95 static const char *GetErrorString(UINT16 uErr)
  96 {
  97   static char buffer[80];
  98   int i;
  99
 100   for (i = 0; i < ErrorStringCount; i++) {
 101     if (uErr == ErrorStrings[i].constant)
 102       return ErrorStrings[i].name;
 103   }
 104
 105   sprintf(buffer, "%x", uErr);
 106   return buffer;
 107 }
 108
 109
 110 /***********************************************************************
 111 *       GetParamErrorString (internal)
 112 */
 113 static const char *GetParamErrorString(UINT16 uErr) {
 114         static char buffer[80];
 115
 116         if (uErr & ERR_WARNING) {
 117                 strcpy(buffer, "ERR_WARNING | ");
 118                 uErr &= ~ERR_WARNING;
 119         } else
 120                 buffer[0] = '\0';
 121
 122         {
 123                 int i;
 124
 125                 for (i = 0; i < ParamErrorStringCount; i++) {
 126                         if (uErr == ParamErrorStrings[i].constant) {
 127                                 strcat(buffer, ParamErrorStrings[i].name);
 128                                 return buffer;
 129                         }
 130                 }
 131         }
 132
 133         sprintf(buffer + strlen(buffer), "%x", uErr);
 134         return buffer;
 135 }
 136
 137
 138 /***********************************************************************
 139 *       LogError (KERNEL.324)
 140 */
 141 VOID WINAPI LogError16(UINT16 uErr, LPVOID lpvInfo)
 142 {
 143         MSG("(%s, %p)\n", GetErrorString(uErr), lpvInfo);
 144 }
 145
 146
 147 /***********************************************************************
 148 *       LogParamError (KERNEL.325)
 149 */
 150 void WINAPI LogParamError16(UINT16 uErr, FARPROC16 lpfn, LPVOID lpvParam)
 151 {
 152         /* FIXME: is it possible to get the module name/function
 153          * from the lpfn param?
 154          */
 155         MSG("(%s, %p, %p)\n", GetParamErrorString(uErr), lpfn, lpvParam);
 156 }
 157
 158 /***********************************************************************
 159 *       HandleParamError (KERNEL.327)
 160 */
 161 void WINAPI HandleParamError( CONTEXT *context )
 162 {
 163         UINT16 uErr = BX_reg( context );
 164         FARPROC16 lpfn = (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( CS_reg(context),
 165                                                            EIP_reg(context) );
 166         LPVOID lpvParam = (LPVOID)MAKELONG( AX_reg( context ),
 167                                             CX_reg( context ) );
 168
 169         LogParamError16( uErr, lpfn, lpvParam );
 170
 171         if (!(uErr & ERR_WARNING))
 172         {
 173                 /* Abort current procedure: Unwind stack frame and jump
 174                    to error handler (location at [bp-2]) */
 175
 176                 WORD *stack = PTR_SEG_OFF_TO_LIN( SS_reg( context ),
 177                                                   BP_reg( context ));
 178                 SP_reg( context ) = BP_reg( context ) - 2;
 179                 BP_reg( context ) = stack[0] & 0xfffe;
 180
 181                 IP_reg( context ) = stack[-1];
 182
 183                 EAX_reg( context ) = ECX_reg( context ) = EDX_reg( context ) = 0;
 184                 ES_reg( context) = 0;
 185         }
 186 }
 187