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wine-wine/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, 2004 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "build.h"
int current_line = 0;
static char ParseBuffer[512];
static char TokenBuffer[512];
static char *ParseNext = ParseBuffer;
static FILE *input_file;
static const char *separator_chars;
static const char *comment_chars;
/* valid characters in ordinal names */
static const char valid_ordname_chars[] = "/$:-_@?<>abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
static const char * const TypeNames[TYPE_NBTYPES] =
{
"variable", /* TYPE_VARIABLE */
"pascal", /* TYPE_PASCAL */
"equate", /* TYPE_ABS */
"stub", /* TYPE_STUB */
"stdcall", /* TYPE_STDCALL */
"cdecl", /* TYPE_CDECL */
"varargs", /* TYPE_VARARGS */
"extern" /* TYPE_EXTERN */
};
static const char * const FlagNames[] =
{
"norelay", /* FLAG_NORELAY */
"noname", /* FLAG_NONAME */
"ret16", /* FLAG_RET16 */
"ret64", /* FLAG_RET64 */
"register", /* FLAG_REGISTER */
"private", /* FLAG_PRIVATE */
"ordinal", /* FLAG_ORDINAL */
"thiscall", /* FLAG_THISCALL */
"fastcall", /* FLAG_FASTCALL */
"import", /* FLAG_IMPORT */
NULL
};
static const char * const ArgNames[ARG_MAXARG + 1] =
{
"word", /* ARG_WORD */
"s_word", /* ARG_SWORD */
"segptr", /* ARG_SEGPTR */
"segstr", /* ARG_SEGSTR */
"long", /* ARG_LONG */
"ptr", /* ARG_PTR */
"str", /* ARG_STR */
"wstr", /* ARG_WSTR */
"int64", /* ARG_INT64 */
"int128", /* ARG_INT128 */
"float", /* ARG_FLOAT */
"double" /* ARG_DOUBLE */
};
static int IsNumberString(const char *s)
{
while (*s) if (!isdigit(*s++)) return 0;
return 1;
}
static inline int is_token_separator( char ch )
{
return strchr( separator_chars, ch ) != NULL;
}
static inline int is_token_comment( char ch )
{
return strchr( comment_chars, ch ) != NULL;
}
/* get the next line from the input file, or return 0 if at eof */
static int get_next_line(void)
{
ParseNext = ParseBuffer;
current_line++;
return (fgets(ParseBuffer, sizeof(ParseBuffer), input_file) != NULL);
}
static const char * GetToken( int allow_eol )
{
char *p;
char *token = TokenBuffer;
for (;;)
{
/* remove initial white space */
p = ParseNext;
while (isspace(*p)) p++;
if (*p == '\\' && p[1] == '\n') /* line continuation */
{
if (!get_next_line())
{
if (!allow_eol) error( "Unexpected end of file\n" );
return NULL;
}
}
else break;
}
if ((*p == '\0') || is_token_comment(*p))
{
if (!allow_eol) error( "Declaration not terminated properly\n" );
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 ORDDEF *add_entry_point( DLLSPEC *spec )
{
ORDDEF *ret;
if (spec->nb_entry_points == spec->alloc_entry_points)
{
spec->alloc_entry_points += 128;
spec->entry_points = xrealloc( spec->entry_points,
spec->alloc_entry_points * sizeof(*spec->entry_points) );
}
ret = &spec->entry_points[spec->nb_entry_points++];
memset( ret, 0, sizeof(*ret) );
return ret;
}
/*******************************************************************
* parse_spec_variable
*
* Parse a variable definition in a .spec file.
*/
static int parse_spec_variable( ORDDEF *odp, DLLSPEC *spec )
{
char *endptr;
unsigned int *value_array;
int n_values;
int value_array_size;
const char *token;
if (spec->type == SPEC_WIN32)
{
error( "'variable' not supported in Win32, use 'extern' instead\n" );
return 0;
}
if (!(token = GetToken(0))) return 0;
if (*token != '(')
{
error( "Expected '(' got '%s'\n", token );
return 0;
}
n_values = 0;
value_array_size = 25;
value_array = xmalloc(sizeof(*value_array) * value_array_size);
for (;;)
{
if (!(token = GetToken(0)))
{
free( value_array );
return 0;
}
if (*token == ')')
break;
value_array[n_values++] = strtoul(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')
{
error( "Expected number value, got '%s'\n", token );
free( value_array );
return 0;
}
}
odp->u.var.n_values = n_values;
odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
return 1;
}
/*******************************************************************
* parse_spec_arguments
*
* Parse the arguments of an entry point.
*/
static int parse_spec_arguments( ORDDEF *odp, DLLSPEC *spec, int optional )
{
const char *token;
unsigned int i, arg;
int is_win32 = (spec->type == SPEC_WIN32) || (odp->flags & FLAG_EXPORT32);
if (!(token = GetToken( optional ))) return optional;
if (*token != '(')
{
error( "Expected '(' got '%s'\n", token );
return 0;
}
odp->u.func.nb_args = 0;
for (i = 0; i < MAX_ARGUMENTS; i++)
{
if (!(token = GetToken(0))) return 0;
if (*token == ')')
break;
for (arg = 0; arg <= ARG_MAXARG; arg++)
if (!strcmp( ArgNames[arg], token )) break;
if (arg > ARG_MAXARG)
{
error( "Unknown argument type '%s'\n", token );
return 0;
}
if (is_win32) switch (arg)
{
case ARG_WORD:
case ARG_SWORD:
case ARG_SEGPTR:
case ARG_SEGSTR:
error( "Argument type '%s' only allowed for Win16\n", token );
return 0;
}
odp->u.func.args[i] = arg;
}
if (*token != ')')
{
error( "Too many arguments\n" );
return 0;
}
odp->u.func.nb_args = i;
if (odp->flags & FLAG_THISCALL)
{
if (odp->type != TYPE_STDCALL)
{
error( "A thiscall function must use the stdcall convention\n" );
return 0;
}
if (!i || odp->u.func.args[0] != ARG_PTR)
{
error( "First argument of a thiscall function must be a pointer\n" );
return 0;
}
}
if (odp->flags & FLAG_FASTCALL)
{
if (odp->type != TYPE_STDCALL)
{
error( "A fastcall function must use the stdcall convention\n" );
return 0;
}
if (!i || (odp->u.func.args[0] != ARG_PTR && odp->u.func.args[0] != ARG_LONG))
{
error( "First argument of a fastcall function must be a pointer or integer\n" );
return 0;
}
if (i > 1 && odp->u.func.args[1] != ARG_PTR && odp->u.func.args[1] != ARG_LONG)
{
error( "Second argument of a fastcall function must be a pointer or integer\n" );
return 0;
}
}
return 1;
}
/*******************************************************************
* parse_spec_export
*
* Parse an exported function definition in a .spec file.
*/
static int parse_spec_export( ORDDEF *odp, DLLSPEC *spec )
{
const char *token;
int is_win32 = (spec->type == SPEC_WIN32) || (odp->flags & FLAG_EXPORT32);
if (!is_win32 && odp->type == TYPE_STDCALL)
{
error( "'stdcall' not supported for Win16\n" );
return 0;
}
if (is_win32 && odp->type == TYPE_PASCAL)
{
error( "'pascal' not supported for Win32\n" );
return 0;
}
if (!parse_spec_arguments( odp, spec, 0 )) return 0;
if (odp->type == TYPE_VARARGS)
odp->flags |= FLAG_NORELAY; /* no relay debug possible for varags entry point */
if (target_cpu != CPU_x86)
odp->flags &= ~(FLAG_THISCALL | FLAG_FASTCALL);
if (!(token = GetToken(1)))
{
if (!strcmp( odp->name, "@" ))
{
error( "Missing handler name for anonymous function\n" );
return 0;
}
odp->link_name = xstrdup( odp->name );
}
else
{
odp->link_name = xstrdup( token );
if (strchr( odp->link_name, '.' ))
{
if (!is_win32)
{
error( "Forwarded functions not supported for Win16\n" );
return 0;
}
odp->flags |= FLAG_FORWARD;
}
}
return 1;
}
/*******************************************************************
* parse_spec_equate
*
* Parse an 'equate' definition in a .spec file.
*/
static int parse_spec_equate( ORDDEF *odp, DLLSPEC *spec )
{
char *endptr;
int value;
const char *token;
if (spec->type == SPEC_WIN32)
{
error( "'equate' not supported for Win32\n" );
return 0;
}
if (!(token = GetToken(0))) return 0;
value = strtol(token, &endptr, 0);
if (endptr == NULL || *endptr != '\0')
{
error( "Expected number value, got '%s'\n", token );
return 0;
}
if (value < -0x8000 || value > 0xffff)
{
error( "Value %d for absolute symbol doesn't fit in 16 bits\n", value );
value = 0;
}
odp->u.abs.value = value;
return 1;
}
/*******************************************************************
* parse_spec_stub
*
* Parse a 'stub' definition in a .spec file
*/
static int parse_spec_stub( ORDDEF *odp, DLLSPEC *spec )
{
odp->u.func.nb_args = -1;
odp->link_name = xstrdup("");
/* don't bother generating stubs for Winelib */
if (odp->flags & FLAG_CPU_MASK)
odp->flags &= FLAG_CPU(CPU_x86) | FLAG_CPU(CPU_x86_64) | FLAG_CPU(CPU_ARM) | FLAG_CPU(CPU_ARM64);
else
odp->flags |= FLAG_CPU(CPU_x86) | FLAG_CPU(CPU_x86_64) | FLAG_CPU(CPU_ARM) | FLAG_CPU(CPU_ARM64);
return parse_spec_arguments( odp, spec, 1 );
}
/*******************************************************************
* parse_spec_extern
*
* Parse an 'extern' definition in a .spec file.
*/
static int parse_spec_extern( ORDDEF *odp, DLLSPEC *spec )
{
const char *token;
if (spec->type == SPEC_WIN16)
{
error( "'extern' not supported for Win16, use 'variable' instead\n" );
return 0;
}
if (!(token = GetToken(1)))
{
if (!strcmp( odp->name, "@" ))
{
error( "Missing handler name for anonymous extern\n" );
return 0;
}
odp->link_name = xstrdup( odp->name );
}
else
{
odp->link_name = xstrdup( token );
if (strchr( odp->link_name, '.' )) odp->flags |= FLAG_FORWARD;
}
return 1;
}
/*******************************************************************
* parse_spec_flags
*
* Parse the optional flags for an entry point in a .spec file.
*/
static const char *parse_spec_flags( DLLSPEC *spec, ORDDEF *odp )
{
unsigned int i, cpu_mask = 0;
const char *token;
do
{
if (!(token = GetToken(0))) break;
if (!strncmp( token, "arch=", 5))
{
char *args = xstrdup( token + 5 );
char *cpu_name = strtok( args, "," );
while (cpu_name)
{
if (!strcmp( cpu_name, "win32" ))
{
if (spec->type == SPEC_WIN32)
odp->flags |= FLAG_CPU_WIN32;
else
odp->flags |= FLAG_EXPORT32;
}
else if (!strcmp( cpu_name, "win64" ))
odp->flags |= FLAG_CPU_WIN64;
else
{
int cpu = get_cpu_from_name( cpu_name + (cpu_name[0] == '!') );
if (cpu == -1)
{
error( "Unknown architecture '%s'\n", cpu_name );
return NULL;
}
if (cpu_name[0] == '!') cpu_mask |= FLAG_CPU( cpu );
else odp->flags |= FLAG_CPU( cpu );
}
cpu_name = strtok( NULL, "," );
}
free( args );
}
else if (!strcmp( token, "i386" )) /* backwards compatibility */
{
odp->flags |= FLAG_CPU(CPU_x86);
}
else
{
for (i = 0; FlagNames[i]; i++)
if (!strcmp( FlagNames[i], token )) break;
if (!FlagNames[i])
{
error( "Unknown flag '%s'\n", token );
return NULL;
}
switch (1 << i)
{
case FLAG_RET16:
case FLAG_REGISTER:
if (spec->type == SPEC_WIN32)
error( "Flag '%s' is not supported in Win32\n", FlagNames[i] );
break;
case FLAG_RET64:
case FLAG_THISCALL:
case FLAG_FASTCALL:
if (spec->type == SPEC_WIN16)
error( "Flag '%s' is not supported in Win16\n", FlagNames[i] );
break;
}
odp->flags |= 1 << i;
}
token = GetToken(0);
} while (token && *token == '-');
if (cpu_mask) odp->flags |= FLAG_CPU_MASK & ~cpu_mask;
return token;
}
/*******************************************************************
* parse_spec_ordinal
*
* Parse an ordinal definition in a .spec file.
*/
static int parse_spec_ordinal( int ordinal, DLLSPEC *spec )
{
const char *token;
size_t len;
ORDDEF *odp = add_entry_point( spec );
if (!(token = GetToken(0))) goto error;
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)
{
if (!strcmp( token, "thiscall" )) /* for backwards compatibility */
{
odp->type = TYPE_STDCALL;
odp->flags |= FLAG_THISCALL;
}
else
{
error( "Expected type after ordinal, found '%s' instead\n", token );
goto error;
}
}
if (!(token = GetToken(0))) goto error;
if (*token == '-' && !(token = parse_spec_flags( spec, odp ))) goto error;
if (ordinal == -1 && spec->type != SPEC_WIN32 && !(odp->flags & FLAG_EXPORT32))
{
error( "'@' ordinals not supported for Win16\n" );
goto error;
}
odp->name = xstrdup( token );
odp->lineno = current_line;
odp->ordinal = ordinal;
len = strspn( odp->name, valid_ordname_chars );
if (len < strlen( odp->name ))
{
error( "Character '%c' is not allowed in exported name '%s'\n", odp->name[len], odp->name );
goto error;
}
switch(odp->type)
{
case TYPE_VARIABLE:
if (!parse_spec_variable( odp, spec )) goto error;
break;
case TYPE_PASCAL:
case TYPE_STDCALL:
case TYPE_VARARGS:
case TYPE_CDECL:
if (!parse_spec_export( odp, spec )) goto error;
break;
case TYPE_ABS:
if (!parse_spec_equate( odp, spec )) goto error;
break;
case TYPE_STUB:
if (!parse_spec_stub( odp, spec )) goto error;
break;
case TYPE_EXTERN:
if (!parse_spec_extern( odp, spec )) goto error;
break;
default:
assert( 0 );
}
if ((odp->flags & FLAG_CPU_MASK) && !(odp->flags & FLAG_CPU(target_cpu)))
{
/* ignore this entry point */
spec->nb_entry_points--;
return 1;
}
if (ordinal != -1)
{
if (!ordinal)
{
error( "Ordinal 0 is not valid\n" );
goto error;
}
if (ordinal >= MAX_ORDINALS)
{
error( "Ordinal number %d too large\n", ordinal );
goto error;
}
if (ordinal > spec->limit) spec->limit = ordinal;
if (ordinal < spec->base) spec->base = ordinal;
odp->ordinal = ordinal;
}
if (odp->type == TYPE_STDCALL && !(odp->flags & FLAG_PRIVATE))
{
if (!strcmp( odp->name, "DllRegisterServer" ) ||
!strcmp( odp->name, "DllUnregisterServer" ) ||
!strcmp( odp->name, "DllMain" ) ||
!strcmp( odp->name, "DllGetClassObject" ) ||
!strcmp( odp->name, "DllGetVersion" ) ||
!strcmp( odp->name, "DllInstall" ) ||
!strcmp( odp->name, "DllCanUnloadNow" ))
{
warning( "Function %s should be marked private\n", odp->name );
if (strcmp( odp->name, odp->link_name ))
warning( "Function %s should not use a different internal name (%s)\n",
odp->name, odp->link_name );
}
}
if (!strcmp( odp->name, "@" ) || odp->flags & (FLAG_NONAME | FLAG_ORDINAL))
{
if (ordinal == -1)
{
if (!strcmp( odp->name, "@" ))
error( "Nameless function needs an explicit ordinal number\n" );
else
error( "Function imported by ordinal needs an explicit ordinal number\n" );
goto error;
}
if (spec->type != SPEC_WIN32)
{
error( "Nameless functions not supported for Win16\n" );
goto error;
}
if (!strcmp( odp->name, "@" ))
{
free( odp->name );
odp->name = NULL;
}
else if (!(odp->flags & FLAG_ORDINAL)) /* -ordinal only affects the import library */
{
odp->export_name = odp->name;
odp->name = NULL;
}
}
return 1;
error:
spec->nb_entry_points--;
free( odp->name );
return 0;
}
static int name_compare( const void *ptr1, const void *ptr2 )
{
const ORDDEF *odp1 = *(const ORDDEF * const *)ptr1;
const ORDDEF *odp2 = *(const ORDDEF * const *)ptr2;
const char *name1 = odp1->name ? odp1->name : odp1->export_name;
const char *name2 = odp2->name ? odp2->name : odp2->export_name;
return strcmp( name1, name2 );
}
/*******************************************************************
* assign_names
*
* Build the name array and catch duplicates.
*/
static void assign_names( DLLSPEC *spec )
{
int i, j, nb_exp_names = 0;
ORDDEF **all_names;
spec->nb_names = 0;
for (i = 0; i < spec->nb_entry_points; i++)
if (spec->entry_points[i].name) spec->nb_names++;
else if (spec->entry_points[i].export_name) nb_exp_names++;
if (!spec->nb_names && !nb_exp_names) return;
/* check for duplicates */
all_names = xmalloc( (spec->nb_names + nb_exp_names) * sizeof(all_names[0]) );
for (i = j = 0; i < spec->nb_entry_points; i++)
if (spec->entry_points[i].name || spec->entry_points[i].export_name)
all_names[j++] = &spec->entry_points[i];
qsort( all_names, j, sizeof(all_names[0]), name_compare );
for (i = 0; i < j - 1; i++)
{
const char *name1 = all_names[i]->name ? all_names[i]->name : all_names[i]->export_name;
const char *name2 = all_names[i+1]->name ? all_names[i+1]->name : all_names[i+1]->export_name;
if (!strcmp( name1, name2 ) &&
!((all_names[i]->flags ^ all_names[i+1]->flags) & FLAG_EXPORT32))
{
current_line = max( all_names[i]->lineno, all_names[i+1]->lineno );
error( "'%s' redefined\n%s:%d: First defined here\n",
name1, input_file_name,
min( all_names[i]->lineno, all_names[i+1]->lineno ) );
}
}
free( all_names );
if (spec->nb_names)
{
spec->names = xmalloc( spec->nb_names * sizeof(spec->names[0]) );
for (i = j = 0; i < spec->nb_entry_points; i++)
if (spec->entry_points[i].name) spec->names[j++] = &spec->entry_points[i];
/* sort the list of names */
qsort( spec->names, spec->nb_names, sizeof(spec->names[0]), name_compare );
for (i = 0; i < spec->nb_names; i++) spec->names[i]->hint = i;
}
}
/*******************************************************************
* assign_ordinals
*
* Build the ordinal array.
*/
static void assign_ordinals( DLLSPEC *spec )
{
int i, count, ordinal;
/* start assigning from base, or from 1 if no ordinal defined yet */
spec->base = MAX_ORDINALS;
spec->limit = 0;
for (i = 0; i < spec->nb_entry_points; i++)
{
ordinal = spec->entry_points[i].ordinal;
if (ordinal == -1) continue;
if (ordinal > spec->limit) spec->limit = ordinal;
if (ordinal < spec->base) spec->base = ordinal;
}
if (spec->base == MAX_ORDINALS) spec->base = 1;
if (spec->limit < spec->base) spec->limit = spec->base;
count = max( spec->limit + 1, spec->base + spec->nb_entry_points );
spec->ordinals = xmalloc( count * sizeof(spec->ordinals[0]) );
memset( spec->ordinals, 0, count * sizeof(spec->ordinals[0]) );
/* fill in all explicitly specified ordinals */
for (i = 0; i < spec->nb_entry_points; i++)
{
ordinal = spec->entry_points[i].ordinal;
if (ordinal == -1) continue;
if (spec->ordinals[ordinal])
{
current_line = max( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno );
error( "ordinal %d redefined\n%s:%d: First defined here\n",
ordinal, input_file_name,
min( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno ) );
}
else spec->ordinals[ordinal] = &spec->entry_points[i];
}
/* now assign ordinals to the rest */
for (i = 0, ordinal = spec->base; i < spec->nb_entry_points; i++)
{
if (spec->entry_points[i].ordinal != -1) continue;
while (spec->ordinals[ordinal]) ordinal++;
if (ordinal >= MAX_ORDINALS)
{
current_line = spec->entry_points[i].lineno;
fatal_error( "Too many functions defined (max %d)\n", MAX_ORDINALS );
}
spec->entry_points[i].ordinal = ordinal;
spec->ordinals[ordinal] = &spec->entry_points[i];
}
if (ordinal > spec->limit) spec->limit = ordinal;
}
/*******************************************************************
* add_16bit_exports
*
* Add the necessary exports to the 32-bit counterpart of a 16-bit module.
*/
void add_16bit_exports( DLLSPEC *spec32, DLLSPEC *spec16 )
{
int i;
ORDDEF *odp;
spec32->file_name = xstrdup( spec16->file_name );
spec32->characteristics = IMAGE_FILE_DLL;
/* add an export for the NE module */
odp = add_entry_point( spec32 );
odp->type = TYPE_EXTERN;
odp->flags = FLAG_PRIVATE;
odp->name = xstrdup( "__wine_spec_dos_header" );
odp->lineno = 0;
odp->ordinal = 1;
odp->link_name = xstrdup( ".L__wine_spec_dos_header" );
if (spec16->main_module)
{
odp = add_entry_point( spec32 );
odp->type = TYPE_EXTERN;
odp->flags = FLAG_PRIVATE;
odp->name = xstrdup( "__wine_spec_main_module" );
odp->lineno = 0;
odp->ordinal = 2;
odp->link_name = xstrdup( ".L__wine_spec_main_module" );
}
/* add the explicit win32 exports */
for (i = 1; i <= spec16->limit; i++)
{
ORDDEF *odp16 = spec16->ordinals[i];
if (!odp16 || !odp16->name) continue;
if (!(odp16->flags & FLAG_EXPORT32)) continue;
odp = add_entry_point( spec32 );
odp->flags = odp16->flags & ~FLAG_EXPORT32;
odp->type = odp16->type;
odp->name = xstrdup( odp16->name );
odp->lineno = odp16->lineno;
odp->ordinal = -1;
odp->link_name = xstrdup( odp16->link_name );
odp->u.func.nb_args = odp16->u.func.nb_args;
if (odp->u.func.nb_args > 0) memcpy( odp->u.func.args, odp16->u.func.args,
odp->u.func.nb_args * sizeof(odp->u.func.args[0]) );
}
assign_names( spec32 );
assign_ordinals( spec32 );
}
/*******************************************************************
* parse_spec_file
*
* Parse a .spec file.
*/
int parse_spec_file( FILE *file, DLLSPEC *spec )
{
const char *token;
input_file = file;
current_line = 0;
comment_chars = "#;";
separator_chars = "()-";
while (get_next_line())
{
if (!(token = GetToken(1))) continue;
if (strcmp(token, "@") == 0)
{
if (!parse_spec_ordinal( -1, spec )) continue;
}
else if (IsNumberString(token))
{
if (!parse_spec_ordinal( atoi(token), spec )) continue;
}
else
{
error( "Expected ordinal declaration, got '%s'\n", token );
continue;
}
if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
}
current_line = 0; /* no longer parsing the input file */
assign_names( spec );
assign_ordinals( spec );
return !nb_errors;
}
/*******************************************************************
* parse_def_library
*
* Parse a LIBRARY declaration in a .def file.
*/
static int parse_def_library( DLLSPEC *spec )
{
const char *token = GetToken(1);
if (!token) return 1;
if (strcmp( token, "BASE" ))
{
free( spec->file_name );
spec->file_name = xstrdup( token );
if (!(token = GetToken(1))) return 1;
}
if (strcmp( token, "BASE" ))
{
error( "Expected library name or BASE= declaration, got '%s'\n", token );
return 0;
}
if (!(token = GetToken(0))) return 0;
if (strcmp( token, "=" ))
{
error( "Expected '=' after BASE, got '%s'\n", token );
return 0;
}
if (!(token = GetToken(0))) return 0;
/* FIXME: do something with base address */
return 1;
}
/*******************************************************************
* parse_def_stack_heap_size
*
* Parse a STACKSIZE or HEAPSIZE declaration in a .def file.
*/
static int parse_def_stack_heap_size( int is_stack, DLLSPEC *spec )
{
const char *token = GetToken(0);
char *end;
unsigned long size;
if (!token) return 0;
size = strtoul( token, &end, 0 );
if (*end)
{
error( "Invalid number '%s'\n", token );
return 0;
}
if (is_stack) spec->stack_size = size / 1024;
else spec->heap_size = size / 1024;
if (!(token = GetToken(1))) return 1;
if (strcmp( token, "," ))
{
error( "Expected ',' after size, got '%s'\n", token );
return 0;
}
if (!(token = GetToken(0))) return 0;
/* FIXME: do something with reserve size */
return 1;
}
/*******************************************************************
* parse_def_export
*
* Parse an export declaration in a .def file.
*/
static int parse_def_export( char *name, DLLSPEC *spec )
{
int i, args;
const char *token = GetToken(1);
ORDDEF *odp = add_entry_point( spec );
odp->lineno = current_line;
odp->ordinal = -1;
odp->name = name;
args = remove_stdcall_decoration( odp->name );
if (args == -1)
{
odp->type = TYPE_CDECL;
args = 0;
}
else
{
odp->type = TYPE_STDCALL;
args /= get_ptr_size();
if (args >= MAX_ARGUMENTS)
{
error( "Too many arguments in stdcall function '%s'\n", odp->name );
return 0;
}
for (i = 0; i < args; i++) odp->u.func.args[i] = ARG_LONG;
}
odp->u.func.nb_args = args;
/* check for optional internal name */
if (token && !strcmp( token, "=" ))
{
if (!(token = GetToken(0))) goto error;
odp->link_name = xstrdup( token );
remove_stdcall_decoration( odp->link_name );
token = GetToken(1);
}
else
{
odp->link_name = xstrdup( name );
}
/* check for optional ordinal */
if (token && token[0] == '@')
{
int ordinal;
if (!IsNumberString( token+1 ))
{
error( "Expected number after '@', got '%s'\n", token+1 );
goto error;
}
ordinal = atoi( token+1 );
if (!ordinal)
{
error( "Ordinal 0 is not valid\n" );
goto error;
}
if (ordinal >= MAX_ORDINALS)
{
error( "Ordinal number %d too large\n", ordinal );
goto error;
}
odp->ordinal = ordinal;
token = GetToken(1);
}
/* check for other optional keywords */
while (token)
{
if (!strcmp( token, "NONAME" ))
{
if (odp->ordinal == -1)
{
error( "NONAME requires an ordinal\n" );
goto error;
}
odp->export_name = odp->name;
odp->name = NULL;
odp->flags |= FLAG_NONAME;
}
else if (!strcmp( token, "PRIVATE" ))
{
odp->flags |= FLAG_PRIVATE;
}
else if (!strcmp( token, "DATA" ))
{
odp->type = TYPE_EXTERN;
}
else
{
error( "Garbage text '%s' found at end of export declaration\n", token );
goto error;
}
token = GetToken(1);
}
return 1;
error:
spec->nb_entry_points--;
free( odp->name );
return 0;
}
/*******************************************************************
* parse_def_file
*
* Parse a .def file.
*/
int parse_def_file( FILE *file, DLLSPEC *spec )
{
const char *token;
int in_exports = 0;
input_file = file;
current_line = 0;
comment_chars = ";";
separator_chars = ",=";
while (get_next_line())
{
if (!(token = GetToken(1))) continue;
if (!strcmp( token, "LIBRARY" ) || !strcmp( token, "NAME" ))
{
if (!parse_def_library( spec )) continue;
goto end_of_line;
}
else if (!strcmp( token, "STACKSIZE" ))
{
if (!parse_def_stack_heap_size( 1, spec )) continue;
goto end_of_line;
}
else if (!strcmp( token, "HEAPSIZE" ))
{
if (!parse_def_stack_heap_size( 0, spec )) continue;
goto end_of_line;
}
else if (!strcmp( token, "EXPORTS" ))
{
in_exports = 1;
if (!(token = GetToken(1))) continue;
}
else if (!strcmp( token, "IMPORTS" ))
{
in_exports = 0;
if (!(token = GetToken(1))) continue;
}
else if (!strcmp( token, "SECTIONS" ))
{
in_exports = 0;
if (!(token = GetToken(1))) continue;
}
if (!in_exports) continue; /* ignore this line */
if (!parse_def_export( xstrdup(token), spec )) continue;
end_of_line:
if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
}
current_line = 0; /* no longer parsing the input file */
assign_names( spec );
assign_ordinals( spec );
return !nb_errors;
}
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