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Sweden-Number/tools/winebuild/parser.c

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/*
* Spec file parser
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Martin von Loewis
* Copyright 1995, 1996, 1997 Alexandre Julliard
* Copyright 1997 Eric Youngdale
* Copyright 1999 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "winbase.h"
#include "build.h"
int current_line = 0;
static SPEC_TYPE SpecType = SPEC_INVALID;
static char ParseBuffer[512];
static char TokenBuffer[512];
static char *ParseNext = ParseBuffer;
static FILE *input_file;
static const char * const TypeNames[TYPE_NBTYPES] =
{
"variable", /* TYPE_VARIABLE */
"pascal16", /* TYPE_PASCAL_16 */
"pascal", /* TYPE_PASCAL */
"equate", /* TYPE_ABS */
"stub", /* TYPE_STUB */
"stdcall", /* TYPE_STDCALL */
"cdecl", /* TYPE_CDECL */
"varargs", /* TYPE_VARARGS */
"extern", /* TYPE_EXTERN */
"forward" /* TYPE_FORWARD */
};
static const char * const FlagNames[] =
{
"noimport", /* FLAG_NOIMPORT */
"norelay", /* FLAG_NORELAY */
"ret64", /* FLAG_RET64 */
"i386", /* FLAG_I386 */
"register", /* FLAG_REGISTER */
"interrupt", /* FLAG_INTERRUPT */
NULL
};
static int IsNumberString(const char *s)
{
while (*s) if (!isdigit(*s++)) return 0;
return 1;
}
inline static int is_token_separator( char ch )
{
return (ch == '(' || ch == ')' || ch == '-');
}
static const char * GetTokenInLine(void)
{
char *p = ParseNext;
char *token = TokenBuffer;
/*
* Remove initial white space.
*/
while (isspace(*p)) p++;
if ((*p == '\0') || (*p == '#')) return NULL;
/*
* Find end of token.
*/
if (is_token_separator(*p))
{
/* a separator is always a complete token */
*token++ = *p++;
}
else while (*p != '\0' && !is_token_separator(*p) && !isspace(*p))
{
if (*p == '\\') p++;
if (*p) *token++ = *p++;
}
*token = '\0';
ParseNext = p;
return TokenBuffer;
}
static const char * GetToken( int allow_eof )
{
const char *token;
while ((token = GetTokenInLine()) == NULL)
{
ParseNext = ParseBuffer;
current_line++;
if (fgets(ParseBuffer, sizeof(ParseBuffer), input_file) == NULL)
{
if (!allow_eof) fatal_error( "Unexpected end of file\n" );
return NULL;
}
}
return token;
}
/*******************************************************************
* ParseDebug
*
* Parse a debug channel definition.
*/
static void ParseDebug(void)
{
const char *token = GetToken(0);
if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
for (;;)
{
token = GetToken(0);
if (*token == ')') break;
debug_channels = xrealloc( debug_channels,
(nb_debug_channels + 1) * sizeof(*debug_channels));
debug_channels[nb_debug_channels++] = xstrdup(token);
}
}
/*******************************************************************
* ParseIgnore
*
* Parse an 'ignore' definition.
*/
static void ParseIgnore(void)
{
const char *token = GetToken(0);
if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
for (;;)
{
token = GetToken(0);
if (*token == ')') break;
add_ignore_symbol( token );
}
}
/*******************************************************************
* ParseVariable
*
* Parse a variable definition.
*/
static void ParseVariable( ORDDEF *odp )
{
char *endptr;
int *value_array;
int n_values;
int value_array_size;
const char *token = GetToken(0);
if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
n_values = 0;
value_array_size = 25;
value_array = xmalloc(sizeof(*value_array) * value_array_size);
for (;;)
{
token = GetToken(0);
if (*token == ')')
break;
value_array[n_values++] = strtol(token, &endptr, 0);
if (n_values == value_array_size)
{
value_array_size += 25;
value_array = xrealloc(value_array,
sizeof(*value_array) * value_array_size);
}
if (endptr == NULL || *endptr != '\0')
fatal_error( "Expected number value, got '%s'\n", token );
}
odp->u.var.n_values = n_values;
odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
}
/*******************************************************************
* ParseExportFunction
*
* Parse a function definition.
*/
static void ParseExportFunction( ORDDEF *odp )
{
const char *token;
unsigned int i;
switch(SpecType)
{
case SPEC_WIN16:
if (odp->type == TYPE_STDCALL)
fatal_error( "'stdcall' not supported for Win16\n" );
if (odp->type == TYPE_VARARGS)
fatal_error( "'varargs' not supported for Win16\n" );
break;
case SPEC_WIN32:
if ((odp->type == TYPE_PASCAL) || (odp->type == TYPE_PASCAL_16))
fatal_error( "'pascal' not supported for Win32\n" );
if (odp->flags & FLAG_INTERRUPT)
fatal_error( "'interrupt' not supported for Win32\n" );
break;
default:
break;
}
token = GetToken(0);
if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
for (i = 0; i < sizeof(odp->u.func.arg_types); i++)
{
token = GetToken(0);
if (*token == ')')
break;
if (!strcmp(token, "word"))
odp->u.func.arg_types[i] = 'w';
else if (!strcmp(token, "s_word"))
odp->u.func.arg_types[i] = 's';
else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
odp->u.func.arg_types[i] = 'l';
else if (!strcmp(token, "ptr"))
odp->u.func.arg_types[i] = 'p';
else if (!strcmp(token, "str"))
odp->u.func.arg_types[i] = 't';
else if (!strcmp(token, "wstr"))
odp->u.func.arg_types[i] = 'W';
else if (!strcmp(token, "segstr"))
odp->u.func.arg_types[i] = 'T';
else if (!strcmp(token, "double"))
{
odp->u.func.arg_types[i++] = 'l';
if (i < sizeof(odp->u.func.arg_types)) odp->u.func.arg_types[i] = 'l';
}
else fatal_error( "Unknown variable type '%s'\n", token );
if (SpecType == SPEC_WIN32)
{
if (strcmp(token, "long") &&
strcmp(token, "ptr") &&
strcmp(token, "str") &&
strcmp(token, "wstr") &&
strcmp(token, "double"))
{
fatal_error( "Type '%s' not supported for Win32\n", token );
}
}
}
if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
fatal_error( "Too many arguments\n" );
odp->u.func.arg_types[i] = '\0';
if (odp->type == TYPE_VARARGS)
odp->flags |= FLAG_NORELAY; /* no relay debug possible for varags entry point */
odp->link_name = xstrdup( GetToken(0) );
}
/*******************************************************************
* ParseEquate
*
* Parse an 'equate' definition.
*/
static void ParseEquate( ORDDEF *odp )
{
char *endptr;
const char *token = GetToken(0);
int value = strtol(token, &endptr, 0);
if (endptr == NULL || *endptr != '\0')
fatal_error( "Expected number value, got '%s'\n", token );
if (SpecType == SPEC_WIN32)
fatal_error( "'equate' not supported for Win32\n" );
odp->u.abs.value = value;
}
/*******************************************************************
* ParseStub
*
* Parse a 'stub' definition.
*/
static void ParseStub( ORDDEF *odp )
{
odp->u.func.arg_types[0] = '\0';
odp->link_name = xstrdup("");
}
/*******************************************************************
* ParseExtern
*
* Parse an 'extern' definition.
*/
static void ParseExtern( ORDDEF *odp )
{
if (SpecType == SPEC_WIN16) fatal_error( "'extern' not supported for Win16\n" );
odp->link_name = xstrdup( GetToken(0) );
/* 'extern' definitions are not available for implicit import */
odp->flags |= FLAG_NOIMPORT;
}
/*******************************************************************
* ParseForward
*
* Parse a 'forward' definition.
*/
static void ParseForward( ORDDEF *odp )
{
if (SpecType == SPEC_WIN16) fatal_error( "'forward' not supported for Win16\n" );
odp->link_name = xstrdup( GetToken(0) );
}
/*******************************************************************
* ParseFlags
*
* Parse the optional flags for an entry point
*/
static const char *ParseFlags( ORDDEF *odp )
{
unsigned int i;
const char *token;
do
{
token = GetToken(0);
for (i = 0; FlagNames[i]; i++)
if (!strcmp( FlagNames[i], token )) break;
if (!FlagNames[i]) fatal_error( "Unknown flag '%s'\n", token );
odp->flags |= 1 << i;
token = GetToken(0);
} while (*token == '-');
return token;
}
/*******************************************************************
* fix_export_name
*
* Fix an exported function name by removing a possible @xx suffix
*/
static void fix_export_name( char *name )
{
char *p, *end = strrchr( name, '@' );
if (!end || !end[1] || end == name) return;
/* make sure all the rest is digits */
for (p = end + 1; *p; p++) if (!isdigit(*p)) return;
*end = 0;
}
/*******************************************************************
* ParseOrdinal
*
* Parse an ordinal definition.
*/
static void ParseOrdinal(int ordinal)
{
const char *token;
ORDDEF *odp = xmalloc( sizeof(*odp) );
memset( odp, 0, sizeof(*odp) );
EntryPoints[nb_entry_points++] = odp;
token = GetToken(0);
for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
break;
if (odp->type >= TYPE_NBTYPES)
fatal_error( "Expected type after ordinal, found '%s' instead\n", token );
token = GetToken(0);
if (*token == '-') token = ParseFlags( odp );
odp->name = xstrdup( token );
fix_export_name( odp->name );
odp->lineno = current_line;
odp->ordinal = ordinal;
switch(odp->type)
{
case TYPE_VARIABLE:
ParseVariable( odp );
break;
case TYPE_PASCAL_16:
case TYPE_PASCAL:
case TYPE_STDCALL:
case TYPE_VARARGS:
case TYPE_CDECL:
ParseExportFunction( odp );
break;
case TYPE_ABS:
ParseEquate( odp );
break;
case TYPE_STUB:
ParseStub( odp );
break;
case TYPE_EXTERN:
ParseExtern( odp );
break;
case TYPE_FORWARD:
ParseForward( odp );
break;
default:
assert( 0 );
}
#ifndef __i386__
if (odp->flags & FLAG_I386)
{
/* ignore this entry point on non-Intel archs */
EntryPoints[--nb_entry_points] = NULL;
free( odp );
return;
}
#endif
if (ordinal != -1)
{
if (ordinal >= MAX_ORDINALS) fatal_error( "Ordinal number %d too large\n", ordinal );
if (ordinal > Limit) Limit = ordinal;
if (ordinal < Base) Base = ordinal;
odp->ordinal = ordinal;
Ordinals[ordinal] = odp;
}
if (!strcmp( odp->name, "@" ))
{
if (ordinal == -1)
fatal_error( "Nameless function needs an explicit ordinal number\n" );
if (SpecType != SPEC_WIN32)
fatal_error( "Nameless functions not supported for Win16\n" );
odp->name[0] = 0;
}
else Names[nb_names++] = odp;
}
static int name_compare( const void *name1, const void *name2 )
{
ORDDEF *odp1 = *(ORDDEF **)name1;
ORDDEF *odp2 = *(ORDDEF **)name2;
return strcmp( odp1->name, odp2->name );
}
/*******************************************************************
* sort_names
*
* Sort the name array and catch duplicates.
*/
static void sort_names(void)
{
int i;
if (!nb_names) return;
/* sort the list of names */
qsort( Names, nb_names, sizeof(Names[0]), name_compare );
/* check for duplicate names */
for (i = 0; i < nb_names - 1; i++)
{
if (!strcmp( Names[i]->name, Names[i+1]->name ))
{
current_line = max( Names[i]->lineno, Names[i+1]->lineno );
fatal_error( "'%s' redefined (previous definition at line %d)\n",
Names[i]->name, min( Names[i]->lineno, Names[i+1]->lineno ) );
}
}
}
/*******************************************************************
* ParseTopLevel
*
* Parse a spec file.
*/
SPEC_TYPE ParseTopLevel( FILE *file )
{
const char *token;
input_file = file;
current_line = 1;
while ((token = GetToken(1)) != NULL)
{
if (strcmp(token, "name") == 0)
{
strcpy(DLLName, GetToken(0));
}
else if (strcmp(token, "file") == 0)
{
strcpy(DLLFileName, GetToken(0));
}
else if (strcmp(token, "type") == 0)
{
token = GetToken(0);
if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
else fatal_error( "Type must be 'win16' or 'win32'\n" );
}
else if (strcmp(token, "mode") == 0)
{
token = GetToken(0);
if (!strcmp(token, "dll" )) SpecMode = SPEC_MODE_DLL;
else if (!strcmp(token, "guiexe" )) SpecMode = SPEC_MODE_GUIEXE;
else if (!strcmp(token, "cuiexe" )) SpecMode = SPEC_MODE_CUIEXE;
else if (!strcmp(token, "guiexe_unicode" )) SpecMode = SPEC_MODE_GUIEXE_UNICODE;
else if (!strcmp(token, "cuiexe_unicode" )) SpecMode = SPEC_MODE_CUIEXE_UNICODE;
else fatal_error( "Mode must be 'dll', 'guiexe', 'cuiexe', 'guiexe_unicode' or 'cuiexe_unicode'\n" );
}
else if (strcmp(token, "heap") == 0)
{
token = GetToken(0);
if (!IsNumberString(token)) fatal_error( "Expected number after heap\n" );
DLLHeapSize = atoi(token);
}
else if (strcmp(token, "stack") == 0)
{
token = GetToken(0);
if (!IsNumberString(token)) fatal_error( "Expected number after stack\n" );
stack_size = atoi(token);
}
else if (strcmp(token, "init") == 0)
{
if (SpecType == SPEC_WIN16)
fatal_error( "init cannot be used for Win16 spec files\n" );
init_func = xstrdup( GetToken(0) );
}
else if (strcmp(token, "import") == 0)
{
const char* name;
int delay = 0;
if (SpecType != SPEC_WIN32)
fatal_error( "Imports not supported for Win16\n" );
name = GetToken(0);
if (*name == '-')
{
name = GetToken(0);
if (!strcmp(name, "delay"))
{
name = GetToken(0);
#ifndef __PPC__
delay = 1;
#else
warning( "The 'delay' option is not yet supported on the PPC. 'delay' will be ignored.\n");
#endif /* __PPC__ */
}
else fatal_error( "Unknown option '%s' for import directive\n", name );
}
add_import_dll( name, delay );
}
else if (strcmp(token, "rsrc") == 0)
{
if (SpecType != SPEC_WIN16) load_res32_file( GetToken(0) );
else load_res16_file( GetToken(0) );
}
else if (strcmp(token, "owner") == 0)
{
if (SpecType != SPEC_WIN16)
fatal_error( "Owner only supported for Win16 spec files\n" );
strcpy( owner_name, GetToken(0) );
}
else if (strcmp(token, "debug_channels") == 0)
{
if (SpecType != SPEC_WIN32)
fatal_error( "debug channels only supported for Win32 spec files\n" );
ParseDebug();
}
else if (strcmp(token, "ignore") == 0)
{
if (SpecType != SPEC_WIN32)
fatal_error( "'ignore' only supported for Win32 spec files\n" );
ParseIgnore();
}
else if (strcmp(token, "@") == 0)
{
if (SpecType != SPEC_WIN32)
fatal_error( "'@' ordinals not supported for Win16\n" );
ParseOrdinal( -1 );
}
else if (IsNumberString(token))
{
ParseOrdinal( atoi(token) );
}
else
fatal_error( "Expected name, id, length or ordinal\n" );
}
if (!DLLFileName[0])
{
if (SpecMode == SPEC_MODE_DLL)
{
strcpy( DLLFileName, DLLName );
/* Append .dll to name if no extension present */
if (!strrchr( DLLFileName, '.'))
strcat( DLLFileName, ".dll" );
}
else
sprintf( DLLFileName, "%s.exe", DLLName );
}
if (SpecType == SPEC_INVALID) fatal_error( "Missing 'type' declaration\n" );
if (SpecType == SPEC_WIN16 && !owner_name[0])
fatal_error( "'owner' not specified for Win16 dll\n" );
current_line = 0; /* no longer parsing the input file */
sort_names();
return SpecType;
}
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