572 lines
15 KiB
C
572 lines
15 KiB
C
/*
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* Spec file parser
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*
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* Copyright 1993 Robert J. Amstadt
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* Copyright 1995 Martin von Loewis
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* Copyright 1995, 1996, 1997 Alexandre Julliard
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* Copyright 1997 Eric Youngdale
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* Copyright 1999 Ulrich Weigand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "winbase.h"
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#include "build.h"
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int current_line = 0;
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static char ParseBuffer[512];
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static char TokenBuffer[512];
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static char *ParseNext = ParseBuffer;
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static FILE *input_file;
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static const char * const TypeNames[TYPE_NBTYPES] =
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{
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"variable", /* TYPE_VARIABLE */
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"pascal16", /* TYPE_PASCAL_16 */
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"pascal", /* TYPE_PASCAL */
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"equate", /* TYPE_ABS */
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"stub", /* TYPE_STUB */
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"stdcall", /* TYPE_STDCALL */
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"cdecl", /* TYPE_CDECL */
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"varargs", /* TYPE_VARARGS */
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"extern", /* TYPE_EXTERN */
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"forward" /* TYPE_FORWARD */
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};
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static const char * const FlagNames[] =
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{
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"norelay", /* FLAG_NORELAY */
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"noname", /* FLAG_NONAME */
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"ret64", /* FLAG_RET64 */
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"i386", /* FLAG_I386 */
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"register", /* FLAG_REGISTER */
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"interrupt", /* FLAG_INTERRUPT */
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NULL
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};
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static int IsNumberString(const char *s)
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{
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while (*s) if (!isdigit(*s++)) return 0;
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return 1;
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}
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inline static int is_token_separator( char ch )
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{
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return (ch == '(' || ch == ')' || ch == '-');
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}
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static const char * GetTokenInLine(void)
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{
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char *p = ParseNext;
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char *token = TokenBuffer;
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/*
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* Remove initial white space.
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*/
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while (isspace(*p)) p++;
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if ((*p == '\0') || (*p == '#')) return NULL;
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/*
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* Find end of token.
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*/
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if (is_token_separator(*p))
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{
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/* a separator is always a complete token */
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*token++ = *p++;
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}
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else while (*p != '\0' && !is_token_separator(*p) && !isspace(*p))
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{
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if (*p == '\\') p++;
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if (*p) *token++ = *p++;
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}
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*token = '\0';
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ParseNext = p;
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return TokenBuffer;
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}
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static const char * GetToken( int allow_eof )
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{
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const char *token;
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while ((token = GetTokenInLine()) == NULL)
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{
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ParseNext = ParseBuffer;
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current_line++;
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if (fgets(ParseBuffer, sizeof(ParseBuffer), input_file) == NULL)
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{
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if (!allow_eof) fatal_error( "Unexpected end of file\n" );
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return NULL;
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}
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}
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return token;
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}
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/*******************************************************************
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* ParseVariable
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*
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* Parse a variable definition.
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*/
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static void ParseVariable( ORDDEF *odp )
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{
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char *endptr;
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int *value_array;
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int n_values;
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int value_array_size;
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const char *token = GetToken(0);
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if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
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n_values = 0;
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value_array_size = 25;
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value_array = xmalloc(sizeof(*value_array) * value_array_size);
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for (;;)
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{
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token = GetToken(0);
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if (*token == ')')
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break;
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value_array[n_values++] = strtol(token, &endptr, 0);
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if (n_values == value_array_size)
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{
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value_array_size += 25;
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value_array = xrealloc(value_array,
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sizeof(*value_array) * value_array_size);
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}
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if (endptr == NULL || *endptr != '\0')
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fatal_error( "Expected number value, got '%s'\n", token );
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}
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odp->u.var.n_values = n_values;
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odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
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}
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/*******************************************************************
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* ParseExportFunction
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*
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* Parse a function definition.
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*/
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static void ParseExportFunction( ORDDEF *odp )
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{
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const char *token;
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unsigned int i;
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switch(SpecType)
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{
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case SPEC_WIN16:
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if (odp->type == TYPE_STDCALL)
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fatal_error( "'stdcall' not supported for Win16\n" );
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if (odp->type == TYPE_VARARGS)
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fatal_error( "'varargs' not supported for Win16\n" );
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break;
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case SPEC_WIN32:
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if ((odp->type == TYPE_PASCAL) || (odp->type == TYPE_PASCAL_16))
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fatal_error( "'pascal' not supported for Win32\n" );
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if (odp->flags & FLAG_INTERRUPT)
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fatal_error( "'interrupt' not supported for Win32\n" );
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break;
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default:
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break;
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}
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token = GetToken(0);
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if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
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for (i = 0; i < sizeof(odp->u.func.arg_types); i++)
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{
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token = GetToken(0);
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if (*token == ')')
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break;
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if (!strcmp(token, "word"))
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odp->u.func.arg_types[i] = 'w';
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else if (!strcmp(token, "s_word"))
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odp->u.func.arg_types[i] = 's';
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else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
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odp->u.func.arg_types[i] = 'l';
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else if (!strcmp(token, "ptr"))
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odp->u.func.arg_types[i] = 'p';
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else if (!strcmp(token, "str"))
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odp->u.func.arg_types[i] = 't';
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else if (!strcmp(token, "wstr"))
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odp->u.func.arg_types[i] = 'W';
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else if (!strcmp(token, "segstr"))
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odp->u.func.arg_types[i] = 'T';
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else if (!strcmp(token, "double"))
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{
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odp->u.func.arg_types[i++] = 'l';
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if (i < sizeof(odp->u.func.arg_types)) odp->u.func.arg_types[i] = 'l';
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}
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else fatal_error( "Unknown variable type '%s'\n", token );
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if (SpecType == SPEC_WIN32)
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{
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if (strcmp(token, "long") &&
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strcmp(token, "ptr") &&
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strcmp(token, "str") &&
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strcmp(token, "wstr") &&
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strcmp(token, "double"))
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{
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fatal_error( "Type '%s' not supported for Win32\n", token );
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}
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}
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}
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if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
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fatal_error( "Too many arguments\n" );
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odp->u.func.arg_types[i] = '\0';
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if (odp->type == TYPE_VARARGS)
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odp->flags |= FLAG_NORELAY; /* no relay debug possible for varags entry point */
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odp->link_name = xstrdup( GetToken(0) );
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if (strchr( odp->link_name, '.' ))
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{
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if (SpecType == SPEC_WIN16) fatal_error( "Forwarded functions not supported for Win16\n" );
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odp->flags |= FLAG_FORWARD;
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}
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}
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/*******************************************************************
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* ParseEquate
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*
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* Parse an 'equate' definition.
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*/
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static void ParseEquate( ORDDEF *odp )
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{
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char *endptr;
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const char *token = GetToken(0);
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int value = strtol(token, &endptr, 0);
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if (endptr == NULL || *endptr != '\0')
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fatal_error( "Expected number value, got '%s'\n", token );
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if (SpecType == SPEC_WIN32)
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fatal_error( "'equate' not supported for Win32\n" );
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odp->u.abs.value = value;
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}
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/*******************************************************************
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* ParseStub
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*
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* Parse a 'stub' definition.
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*/
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static void ParseStub( ORDDEF *odp )
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{
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odp->u.func.arg_types[0] = '\0';
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odp->link_name = xstrdup("");
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}
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/*******************************************************************
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* ParseExtern
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*
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* Parse an 'extern' definition.
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*/
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static void ParseExtern( ORDDEF *odp )
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{
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if (SpecType == SPEC_WIN16) fatal_error( "'extern' not supported for Win16\n" );
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odp->link_name = xstrdup( GetToken(0) );
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}
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/*******************************************************************
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* ParseForward
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*
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* Parse a 'forward' definition.
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*/
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static void ParseForward( ORDDEF *odp )
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{
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if (SpecType == SPEC_WIN16) fatal_error( "'forward' not supported for Win16\n" );
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odp->link_name = xstrdup( GetToken(0) );
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odp->flags |= FLAG_FORWARD;
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}
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/*******************************************************************
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* ParseFlags
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*
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* Parse the optional flags for an entry point
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*/
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static const char *ParseFlags( ORDDEF *odp )
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{
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unsigned int i;
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const char *token;
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do
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{
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token = GetToken(0);
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for (i = 0; FlagNames[i]; i++)
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if (!strcmp( FlagNames[i], token )) break;
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if (!FlagNames[i]) fatal_error( "Unknown flag '%s'\n", token );
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odp->flags |= 1 << i;
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token = GetToken(0);
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} while (*token == '-');
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return token;
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}
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/*******************************************************************
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* fix_export_name
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*
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* Fix an exported function name by removing a possible @xx suffix
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*/
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static void fix_export_name( char *name )
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{
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char *p, *end = strrchr( name, '@' );
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if (!end || !end[1] || end == name) return;
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/* make sure all the rest is digits */
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for (p = end + 1; *p; p++) if (!isdigit(*p)) return;
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*end = 0;
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}
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/*******************************************************************
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* ParseOrdinal
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*
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* Parse an ordinal definition.
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*/
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static void ParseOrdinal(int ordinal)
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{
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const char *token;
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ORDDEF *odp = xmalloc( sizeof(*odp) );
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memset( odp, 0, sizeof(*odp) );
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EntryPoints[nb_entry_points++] = odp;
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token = GetToken(0);
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for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
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if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
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break;
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if (odp->type >= TYPE_NBTYPES)
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fatal_error( "Expected type after ordinal, found '%s' instead\n", token );
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token = GetToken(0);
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if (*token == '-') token = ParseFlags( odp );
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odp->name = xstrdup( token );
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fix_export_name( odp->name );
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odp->lineno = current_line;
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odp->ordinal = ordinal;
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switch(odp->type)
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{
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case TYPE_VARIABLE:
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ParseVariable( odp );
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break;
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case TYPE_PASCAL_16:
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case TYPE_PASCAL:
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case TYPE_STDCALL:
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case TYPE_VARARGS:
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case TYPE_CDECL:
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ParseExportFunction( odp );
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break;
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case TYPE_ABS:
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ParseEquate( odp );
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break;
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case TYPE_STUB:
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ParseStub( odp );
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break;
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case TYPE_EXTERN:
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ParseExtern( odp );
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break;
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case TYPE_FORWARD:
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ParseForward( odp );
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break;
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default:
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assert( 0 );
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}
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#ifndef __i386__
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if (odp->flags & FLAG_I386)
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{
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/* ignore this entry point on non-Intel archs */
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EntryPoints[--nb_entry_points] = NULL;
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free( odp );
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return;
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}
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#endif
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if (ordinal != -1)
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{
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if (!ordinal) fatal_error( "Ordinal 0 is not valid\n" );
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if (ordinal >= MAX_ORDINALS) fatal_error( "Ordinal number %d too large\n", ordinal );
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if (ordinal > Limit) Limit = ordinal;
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if (ordinal < Base) Base = ordinal;
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odp->ordinal = ordinal;
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Ordinals[ordinal] = odp;
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}
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if (!strcmp( odp->name, "@" ) || odp->flags & FLAG_NONAME)
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{
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if (ordinal == -1)
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fatal_error( "Nameless function needs an explicit ordinal number\n" );
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if (SpecType != SPEC_WIN32)
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fatal_error( "Nameless functions not supported for Win16\n" );
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if (!strcmp( odp->name, "@" )) free( odp->name );
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else odp->export_name = odp->name;
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odp->name = NULL;
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}
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else Names[nb_names++] = odp;
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}
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static int name_compare( const void *name1, const void *name2 )
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{
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ORDDEF *odp1 = *(ORDDEF **)name1;
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ORDDEF *odp2 = *(ORDDEF **)name2;
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return strcmp( odp1->name, odp2->name );
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}
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/*******************************************************************
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* sort_names
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*
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* Sort the name array and catch duplicates.
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*/
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static void sort_names(void)
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{
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int i;
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if (!nb_names) return;
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/* sort the list of names */
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qsort( Names, nb_names, sizeof(Names[0]), name_compare );
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/* check for duplicate names */
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for (i = 0; i < nb_names - 1; i++)
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{
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if (!strcmp( Names[i]->name, Names[i+1]->name ))
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{
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current_line = max( Names[i]->lineno, Names[i+1]->lineno );
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fatal_error( "'%s' redefined\n%s:%d: First defined here\n",
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Names[i]->name, input_file_name,
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min( Names[i]->lineno, Names[i+1]->lineno ) );
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}
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}
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}
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/*******************************************************************
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* ParseTopLevel
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*
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* Parse a spec file.
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*/
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void ParseTopLevel( FILE *file )
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{
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const char *token;
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input_file = file;
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current_line = 0;
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while ((token = GetToken(1)) != NULL)
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{
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if (strcmp(token, "@") == 0)
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{
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if (SpecType != SPEC_WIN32)
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fatal_error( "'@' ordinals not supported for Win16\n" );
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ParseOrdinal( -1 );
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}
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else if (IsNumberString(token))
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{
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ParseOrdinal( atoi(token) );
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}
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else
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fatal_error( "Expected ordinal declaration\n" );
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}
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current_line = 0; /* no longer parsing the input file */
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sort_names();
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}
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/*******************************************************************
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* add_debug_channel
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*/
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static void add_debug_channel( const char *name )
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{
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int i;
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for (i = 0; i < nb_debug_channels; i++)
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if (!strcmp( debug_channels[i], name )) return;
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debug_channels = xrealloc( debug_channels, (nb_debug_channels + 1) * sizeof(*debug_channels));
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debug_channels[nb_debug_channels++] = xstrdup(name);
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}
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/*******************************************************************
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* parse_debug_channels
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*
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* Parse a source file and extract the debug channel definitions.
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*/
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void parse_debug_channels( const char *srcdir, const char *filename )
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{
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FILE *file;
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int eol_seen = 1;
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file = open_input_file( srcdir, filename );
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while (fgets( ParseBuffer, sizeof(ParseBuffer), file ))
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{
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char *channel, *end, *p = ParseBuffer;
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p = ParseBuffer + strlen(ParseBuffer) - 1;
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if (!eol_seen) /* continuation line */
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{
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eol_seen = (*p == '\n');
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continue;
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}
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if ((eol_seen = (*p == '\n'))) *p = 0;
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p = ParseBuffer;
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while (isspace(*p)) p++;
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if (!memcmp( p, "WINE_DECLARE_DEBUG_CHANNEL", 26 ) ||
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!memcmp( p, "WINE_DEFAULT_DEBUG_CHANNEL", 26 ))
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{
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p += 26;
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while (isspace(*p)) p++;
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if (*p != '(')
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|
fatal_error( "invalid debug channel specification '%s'\n", ParseBuffer );
|
|
p++;
|
|
while (isspace(*p)) p++;
|
|
if (!isalpha(*p))
|
|
fatal_error( "invalid debug channel specification '%s'\n", ParseBuffer );
|
|
channel = p;
|
|
while (isalnum(*p) || *p == '_') p++;
|
|
end = p;
|
|
while (isspace(*p)) p++;
|
|
if (*p != ')')
|
|
fatal_error( "invalid debug channel specification '%s'\n", ParseBuffer );
|
|
*end = 0;
|
|
add_debug_channel( channel );
|
|
}
|
|
current_line++;
|
|
}
|
|
close_input_file( file );
|
|
}
|