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Sweden-Number/tools/widl/typegen.c

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/*
* Format String Generator for IDL Compiler
*
* Copyright 2005-2006 Eric Kohl
* Copyright 2005-2006 Robert Shearman
*
* 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 <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <signal.h>
#include <limits.h>
#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
#include "windef.h"
#include "wine/list.h"
#include "widl.h"
#include "typegen.h"
static const func_t *current_func;
static const type_t *current_structure;
/* name of the structure variable for structure callbacks */
#define STRUCT_EXPR_EVAL_VAR "pS"
static struct list expr_eval_routines = LIST_INIT(expr_eval_routines);
struct expr_eval_routine
{
struct list entry;
const type_t *structure;
size_t structure_size;
const expr_t *expr;
};
static size_t type_memsize(const type_t *t, int ptr_level, const expr_t *array);
static size_t fields_memsize(const var_t *v);
static int compare_expr(const expr_t *a, const expr_t *b)
{
int ret;
if (a->type != b->type)
return a->type - b->type;
switch (a->type)
{
case EXPR_NUM:
case EXPR_HEXNUM:
case EXPR_TRUEFALSE:
return a->u.lval - b->u.lval;
case EXPR_IDENTIFIER:
return strcmp(a->u.sval, b->u.sval);
case EXPR_COND:
ret = compare_expr(a->ref, b->ref);
if (ret != 0)
return ret;
ret = compare_expr(a->u.ext, b->u.ext);
if (ret != 0)
return ret;
return compare_expr(a->ext2, b->ext2);
case EXPR_OR:
case EXPR_AND:
case EXPR_ADD:
case EXPR_SUB:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_SHL:
case EXPR_SHR:
ret = compare_expr(a->ref, b->ref);
if (ret != 0)
return ret;
return compare_expr(a->u.ext, b->u.ext);
case EXPR_NOT:
case EXPR_NEG:
case EXPR_PPTR:
case EXPR_CAST:
case EXPR_SIZEOF:
return compare_expr(a->ref, b->ref);
case EXPR_VOID:
return 0;
}
return -1;
}
#define WRITE_FCTYPE(file, fctype, typestring_offset) \
do { \
if (file) \
fprintf(file, "/* %2u */\n", typestring_offset); \
print_file((file), 2, "0x%02x, /* " #fctype " */\n", RPC_##fctype); \
} \
while (0)
static int print_file(FILE *file, int indent, const char *format, ...)
{
va_list va;
int i, r;
if (!file) return 0;
va_start(va, format);
for (i = 0; i < indent; i++)
fprintf(file, " ");
r = vfprintf(file, format, va);
va_end(va);
return r;
}
static void write_formatdesc(FILE *f, int indent, const char *str)
{
print_file(f, indent, "typedef struct _MIDL_%s_FORMAT_STRING\n", str);
print_file(f, indent, "{\n");
print_file(f, indent + 1, "short Pad;\n");
print_file(f, indent + 1, "unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
print_file(f, indent, "} MIDL_%s_FORMAT_STRING;\n", str);
print_file(f, indent, "\n");
}
void write_formatstringsdecl(FILE *f, int indent, ifref_t *ifaces, int for_objects)
{
print_file(f, indent, "#define TYPE_FORMAT_STRING_SIZE %d\n",
get_size_typeformatstring(ifaces, for_objects));
print_file(f, indent, "#define PROC_FORMAT_STRING_SIZE %d\n",
get_size_procformatstring(ifaces, for_objects));
fprintf(f, "\n");
write_formatdesc(f, indent, "TYPE");
write_formatdesc(f, indent, "PROC");
fprintf(f, "\n");
print_file(f, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
print_file(f, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
print_file(f, indent, "\n");
}
static inline int is_base_type(unsigned char type)
{
switch (type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_HYPER:
case RPC_FC_IGNORE:
case RPC_FC_FLOAT:
case RPC_FC_DOUBLE:
case RPC_FC_ENUM16:
case RPC_FC_ENUM32:
case RPC_FC_ERROR_STATUS_T:
case RPC_FC_BIND_PRIMITIVE:
return TRUE;
default:
return FALSE;
}
}
static size_t write_procformatstring_var(FILE *file, int indent,
const var_t *var, int is_return, unsigned int *type_offset)
{
size_t size;
int ptr_level = var->ptr_level;
const type_t *type = var->type;
int is_in = is_attr(var->attrs, ATTR_IN);
int is_out = is_attr(var->attrs, ATTR_OUT);
if (!is_in && !is_out) is_in = TRUE;
if (ptr_level == 0 && !var->array && is_base_type(type->type))
{
if (is_return)
print_file(file, indent, "0x53, /* FC_RETURN_PARAM_BASETYPE */\n");
else
print_file(file, indent, "0x4e, /* FC_IN_PARAM_BASETYPE */\n");
switch(type->type)
{
#define CASE_BASETYPE(fctype) \
case RPC_##fctype: \
print_file(file, indent, "0x%02x, /* " #fctype " */\n", RPC_##fctype); \
size = 2; /* includes param type prefix */ \
break
CASE_BASETYPE(FC_BYTE);
CASE_BASETYPE(FC_CHAR);
CASE_BASETYPE(FC_WCHAR);
CASE_BASETYPE(FC_USHORT);
CASE_BASETYPE(FC_SHORT);
CASE_BASETYPE(FC_ULONG);
CASE_BASETYPE(FC_LONG);
CASE_BASETYPE(FC_HYPER);
CASE_BASETYPE(FC_IGNORE);
CASE_BASETYPE(FC_USMALL);
CASE_BASETYPE(FC_SMALL);
CASE_BASETYPE(FC_FLOAT);
CASE_BASETYPE(FC_DOUBLE);
CASE_BASETYPE(FC_ERROR_STATUS_T);
#undef CASE_BASETYPE
case RPC_FC_BIND_PRIMITIVE:
print_file(file, indent, "0x%02x, /* FC_IGNORE */\n", RPC_FC_IGNORE);
size = 2; /* includes param type prefix */
break;
default:
error("Unknown/unsupported type: %s (0x%02x)\n", var->name, type->type);
size = 0;
}
}
else
{
if (is_return)
print_file(file, indent, "0x52, /* FC_RETURN_PARAM */\n");
else if (is_in && is_out)
print_file(file, indent, "0x50, /* FC_IN_OUT_PARAM */\n");
else if (is_out)
print_file(file, indent, "0x51, /* FC_OUT_PARAM */\n");
else
print_file(file, indent, "0x4d, /* FC_IN_PARAM */\n");
print_file(file, indent, "0x01,\n");
print_file(file, indent, "NdrFcShort(0x%x),\n", *type_offset);
size = 4; /* includes param type prefix */
}
*type_offset += get_size_typeformatstring_var(var);
return size;
}
void write_procformatstring(FILE *file, const ifref_t *ifaces, int for_objects)
{
const ifref_t *iface = ifaces;
int indent = 0;
var_t *var;
unsigned int type_offset = 2;
print_file(file, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString =\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "0,\n");
print_file(file, indent, "{\n");
indent++;
END_OF_LIST(iface);
for (; iface; iface = PREV_LINK(iface))
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
func_t *func = iface->iface->funcs;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
for (; func; func = PREV_LINK(func))
{
/* emit argument data */
if (func->args)
{
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
write_procformatstring_var(file, indent, var, FALSE,
&type_offset);
var = PREV_LINK(var);
}
}
/* emit return value data */
var = func->def;
if (is_void(var->type, NULL))
{
print_file(file, indent, "0x5b, /* FC_END */\n");
print_file(file, indent, "0x5c, /* FC_PAD */\n");
}
else
write_procformatstring_var(file, indent, var, TRUE,
&type_offset);
}
}
}
print_file(file, indent, "0x0\n");
indent--;
print_file(file, indent, "}\n");
indent--;
print_file(file, indent, "};\n");
print_file(file, indent, "\n");
}
/* write conformance / variance descriptor */
static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const type_t *structure, const expr_t *expr)
{
unsigned char operator_type = 0;
const char *operator_string = "no operators";
const expr_t *subexpr = expr;
unsigned char correlation_type;
if (!file) return 4; /* optimisation for sizing pass */
if (expr->is_const)
{
if (expr->cval > UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX)
error("write_conf_or_var_desc: constant value %ld is greater than "
"the maximum constant size of %d\n", expr->cval,
UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX);
print_file(file, 2, "0x%x, /* Corr desc: constant, val = %ld */\n",
RPC_FC_CONSTANT_CONFORMANCE, expr->cval);
print_file(file, 2, "0x%x,\n", expr->cval & ~USHRT_MAX);
print_file(file, 2, "NdrFcShort(0x%x),\n", expr->cval & USHRT_MAX);
return 4;
}
switch (subexpr->type)
{
case EXPR_PPTR:
subexpr = subexpr->ref;
operator_type = RPC_FC_DEREFERENCE;
operator_string = "FC_DEREFERENCE";
break;
case EXPR_DIV:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_DIV_2;
operator_string = "FC_DIV_2";
}
break;
case EXPR_MUL:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_MULT_2;
operator_string = "FC_MULT_2";
}
break;
case EXPR_SUB:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_SUB_1;
operator_string = "FC_SUB_1";
}
break;
case EXPR_ADD:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_ADD_1;
operator_string = "FC_ADD_1";
}
break;
default:
break;
}
if (subexpr->type == EXPR_IDENTIFIER)
{
const type_t *correlation_variable = NULL;
unsigned char correlation_variable_type;
unsigned char param_type = 0;
const char *param_type_string = NULL;
size_t offset;
if (structure)
{
const var_t *var;
for (offset = 0, var = structure->fields; var; var = NEXT_LINK(var))
{
offset -= type_memsize(var->type, var->ptr_level, var->array);
if (!strcmp(var->name, subexpr->u.sval))
{
correlation_variable = var->type;
break;
}
}
if (!correlation_variable)
error("write_conf_or_var_desc: couldn't find variable %s in structure\n",
subexpr->u.sval);
correlation_type = RPC_FC_NORMAL_CONFORMANCE;
}
else
{
const var_t *var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
/* FIXME: not all stack variables are sizeof(void *) */
for (offset = 0; var; offset += sizeof(void *), var = PREV_LINK(var))
{
if (!strcmp(var->name, subexpr->u.sval))
{
correlation_variable = var->type;
break;
}
}
if (!correlation_variable)
error("write_conf_or_var_desc: couldn't find variable %s in function\n",
subexpr->u.sval);
correlation_type = RPC_FC_TOP_LEVEL_CONFORMANCE;
}
correlation_variable_type = correlation_variable->type;
switch (correlation_variable_type)
{
case RPC_FC_CHAR:
case RPC_FC_SMALL:
param_type = RPC_FC_SMALL;
param_type_string = "FC_SMALL";
break;
case RPC_FC_BYTE:
case RPC_FC_USMALL:
param_type = RPC_FC_USMALL;
param_type_string = "FC_USMALL";
break;
case RPC_FC_WCHAR:
case RPC_FC_SHORT:
param_type = RPC_FC_SHORT;
param_type_string = "FC_SHORT";
break;
case RPC_FC_USHORT:
param_type = RPC_FC_USHORT;
param_type_string = "FC_USHORT";
break;
case RPC_FC_LONG:
param_type = RPC_FC_LONG;
param_type_string = "FC_LONG";
break;
case RPC_FC_ULONG:
param_type = RPC_FC_ULONG;
param_type_string = "FC_ULONG";
break;
default:
error("write_conf_or_var_desc: conformance variable type not supported 0x%x\n",
correlation_variable_type);
}
print_file(file, 2, "0x%x, /* Corr desc: %s%s */\n",
correlation_type | param_type,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "parameter, " : "",
param_type_string);
print_file(file, 2, "0x%x, /* %s */\n", operator_type, operator_string);
print_file(file, 2, "NdrFcShort(0x%x), /* %soffset = %d */\n",
offset,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "x86 stack size / " : "",
offset);
}
else
{
unsigned int callback_offset = 0;
if (structure)
{
struct expr_eval_routine *eval;
int found = 0;
LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
{
if (!strcmp(eval->structure->name, structure->name) &&
!compare_expr(eval->expr, expr))
{
found = 1;
break;
}
callback_offset++;
}
if (!found)
{
eval = xmalloc(sizeof(*eval));
eval->structure = structure;
eval->structure_size = fields_memsize(structure->fields);
eval->expr = expr;
list_add_tail(&expr_eval_routines, &eval->entry);
}
correlation_type = RPC_FC_NORMAL_CONFORMANCE;
}
else
{
error("write_conf_or_var_desc: top-level callback conformance unimplemented\n");
correlation_type = RPC_FC_TOP_LEVEL_CONFORMANCE;
}
if (callback_offset > USHRT_MAX)
error("Maximum number of callback routines reached\n");
print_file(file, 2, "0x%x, /* Corr desc: %s */\n",
correlation_type,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "parameter" : "");
print_file(file, 2, "0x%x, /* %s */\n", RPC_FC_CALLBACK, "FC_CALLBACK");
print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", callback_offset, callback_offset);
}
return 4;
}
static size_t fields_memsize(const var_t *v)
{
size_t size = 0;
const var_t *first = v;
if (!v) return 0;
while (NEXT_LINK(v)) v = NEXT_LINK(v);
while (v) {
size += type_memsize(v->type, v->ptr_level, v->array);
if (v == first) break;
v = PREV_LINK(v);
}
return size;
}
static size_t type_memsize(const type_t *t, int ptr_level, const expr_t *array)
{
size_t size = 0;
if (ptr_level)
return sizeof(void *);
switch (t->type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
size = 1;
break;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ENUM16:
size = 2;
break;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_ERROR_STATUS_T:
case RPC_FC_ENUM32:
case RPC_FC_FLOAT:
size = 4;
break;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
size = 8;
break;
case RPC_FC_STRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_BOGUS_STRUCT:
case RPC_FC_ENCAPSULATED_UNION:
case RPC_FC_NON_ENCAPSULATED_UNION:
size = fields_memsize(t->fields);
break;
default:
error("type_memsize: Unknown type %d\n", t->type);
size = 0;
}
if (array)
{
if (array->is_const)
size *= array->cval;
else
size = 0;
}
return size;
}
size_t get_type_memsize(const type_t *type)
{
return type_memsize(type, 0, NULL);
}
static int write_pointers(FILE *file, const attr_t *attrs,
const type_t *type, int ptr_level,
const expr_t *array, int level,
unsigned int *typestring_offset)
{
int pointers_written = 0;
const var_t *v;
/* don't generate a pointer for first-level arrays since we want to
* descend into them to write their pointers, not stop here */
if ((level == 0 || ptr_level == 0) && is_array_type(attrs, ptr_level, array))
{
return write_pointers(file, NULL, type, 0, NULL, level + 1, typestring_offset);
}
if (ptr_level != 0)
{
/* FIXME: only general algorithm implemented, not the actual writing */
error("write_pointers: Writing type format string for pointer is unimplemented\n");
return 1;
}
switch (type->type)
{
/* note: don't descend into complex structures or unions since these
* will always be generated as a separate type */
case RPC_FC_STRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_PSTRUCT:
v = type->fields;
if (!v) break;
while (NEXT_LINK(v)) v = NEXT_LINK(v);
for (; v; v = PREV_LINK(v))
pointers_written += write_pointers(file, v->attrs, v->type,
v->ptr_level, v->array,
level + 1,
typestring_offset);
break;
default:
/* nothing to do */
break;
}
return pointers_written;
}
static size_t write_pointer_description(FILE *file, const attr_t *attrs,
const type_t *type, int ptr_level,
const expr_t *array, int level,
size_t typestring_offset)
{
size_t size = 0;
const var_t *v;
/* don't generate a pointer for first-level arrays since we want to
* descend into them to write their pointers, not stop here */
if ((level == 0 || ptr_level == 0) && is_array_type(attrs, ptr_level, array))
{
return write_pointer_description(file, NULL, type, 0, NULL,
level + 1, typestring_offset);
}
if (ptr_level != 0)
{
/* FIXME: only general algorithm implemented, not the actual writing */
error("write_pointer_description: Writing pointer description is unimplemented\n");
return 0;
}
/* FIXME: search through all refs for pointers too */
switch (type->type)
{
/* note: don't descend into complex structures or unions since these
* will always be generated as a separate type */
case RPC_FC_STRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_PSTRUCT:
v = type->fields;
if (!v) break;
while (NEXT_LINK(v)) v = NEXT_LINK(v);
for (; v; v = PREV_LINK(v))
size += write_pointer_description(file, v->attrs, v->type,
v->ptr_level, v->array,
level + 1,
typestring_offset);
break;
default:
/* nothing to do */
break;
}
return size;
}
static size_t write_string_tfs(FILE *file, const attr_t *attrs,
const type_t *type, const expr_t *array,
const char *name, unsigned int *typestring_offset)
{
const expr_t *size_is = get_attrp(attrs, ATTR_SIZEIS);
int has_size = size_is && (size_is->type != EXPR_VOID);
size_t start_offset = *typestring_offset;
unsigned char flags = 0;
int pointer_type;
unsigned char rtype;
if (is_ptr(type))
{
pointer_type = type->type;
type = type->ref;
}
else
pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
if (!get_attrp(attrs, ATTR_SIZEIS))
flags |= RPC_FC_P_SIMPLEPOINTER;
rtype = type->type;
if ((rtype != RPC_FC_BYTE) && (rtype != RPC_FC_CHAR) && (rtype != RPC_FC_WCHAR))
{
error("write_string_tfs: Unimplemented for type 0x%x of name: %s\n", rtype, name);
return start_offset;
}
print_file(file, 2,"0x%x, 0x%x, /* %s%s */\n",
pointer_type, flags,
pointer_type == RPC_FC_FP ? "FC_FP" : (pointer_type == RPC_FC_UP ? "FC_UP" : "FC_RP"),
(flags & RPC_FC_P_SIMPLEPOINTER) ? " [simple_pointer]" : "");
*typestring_offset += 2;
if (!(flags & RPC_FC_P_SIMPLEPOINTER))
{
print_file(file, 2, "NdrFcShort(0x2),\n");
*typestring_offset += 2;
}
if (array && array->is_const)
{
if (array->cval > USHRT_MAX)
error("array size for parameter %s exceeds %d bytes by %ld bytes\n",
name, USHRT_MAX, array->cval - USHRT_MAX);
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", array->cval, array->cval);
*typestring_offset += 2;
return start_offset;
}
else if (has_size)
{
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_STRING_SIZED */\n", RPC_FC_STRING_SIZED);
*typestring_offset += 2;
*typestring_offset += write_conf_or_var_desc(file, current_func, NULL, size_is);
return start_offset;
}
else
{
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
return start_offset;
}
}
static size_t write_array_tfs(FILE *file, const attr_t *attrs,
const type_t *type, const expr_t *array,
const char *name, unsigned int *typestring_offset)
{
const expr_t *length_is = get_attrp(attrs, ATTR_LENGTHIS);
const expr_t *size_is = get_attrp(attrs, ATTR_SIZEIS);
int has_length = length_is && (length_is->type != EXPR_VOID);
int has_size = (size_is && (size_is->type != EXPR_VOID)) || !array->is_const;
size_t start_offset;
int pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
print_file(file, 2, "0x%x, 0x00, /* %s */\n",
pointer_type,
pointer_type == RPC_FC_FP ? "FC_FP" : (pointer_type == RPC_FC_UP ? "FC_UP" : "FC_RP"));
print_file(file, 2, "NdrFcShort(0x2),\n");
*typestring_offset += 4;
if (array && NEXT_LINK(array)) /* multi-dimensional array */
{
error("write_array_tfs: Multi-dimensional arrays not implemented yet (param %s)\n", name);
return 0;
}
else
{
size_t pointer_start_offset = *typestring_offset;
int has_pointer = 0;
if (write_pointers(file, attrs, type, 0, array, 0, typestring_offset) > 0)
has_pointer = 1;
start_offset = *typestring_offset;
if (!has_length && !has_size)
{
/* fixed array */
size_t size = type_memsize(type, 0, array);
if (size < USHRT_MAX)
{
WRITE_FCTYPE(file, FC_SMFARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* size */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", size, size);
*typestring_offset += 4;
}
else
{
WRITE_FCTYPE(file, FC_LGFARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* size */
print_file(file, 2, "NdrFcLong(0x%x), /* %d */\n", size, size);
*typestring_offset += 6;
}
if (has_pointer)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset = write_pointer_description(file, attrs,
type, 0, array, 0, pointer_start_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x0, /* FIXME: write out conversion data */\n");
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 2;
return start_offset;
}
else if (has_length && !has_size)
{
/* varying array */
size_t element_size = type_memsize(type, 0, NULL);
size_t elements = array->cval;
size_t total_size = element_size * elements;
if (total_size < USHRT_MAX)
{
WRITE_FCTYPE(file, FC_SMVARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* total size */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", total_size, total_size);
/* number of elements */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", elements, elements);
*typestring_offset += 6;
}
else
{
WRITE_FCTYPE(file, FC_LGVARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* total size */
print_file(file, 2, "NdrFcLong(0x%x), /* %d */\n", total_size, total_size);
/* number of elements */
print_file(file, 2, "NdrFcLong(0x%x), /* %d */\n", elements, elements);
*typestring_offset += 10;
}
/* element size */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", element_size, element_size);
*typestring_offset += 2;
*typestring_offset += write_conf_or_var_desc(file, current_func,
current_structure,
length_is);
if (has_pointer)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, attrs,
type, 0, array, 0, pointer_start_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x0, /* FIXME: write out conversion data */\n");
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 2;
return start_offset;
}
else if (!has_length && has_size)
{
/* conformant array */
size_t element_size = type_memsize(type, 0, NULL);
WRITE_FCTYPE(file, FC_CARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* element size */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", element_size, element_size);
*typestring_offset += 4;
*typestring_offset += write_conf_or_var_desc(file, current_func,
current_structure,
size_is ? size_is : array);
if (has_pointer)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, attrs,
type, 0, array, 0, pointer_start_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x%x, /* FIXME: write out conversion data */\n", type->type);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 2;
return start_offset;
}
else
{
/* conformant varying array */
size_t element_size = type_memsize(type, 0, NULL);
WRITE_FCTYPE(file, FC_CVARRAY, *typestring_offset);
/* alignment */
print_file(file, 2, "0x%x, /* 0 */\n", 0);
/* element size */
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", element_size, element_size);
*typestring_offset += 4;
*typestring_offset += write_conf_or_var_desc(file, current_func,
current_structure,
size_is ? size_is : array);
*typestring_offset += write_conf_or_var_desc(file, current_func,
current_structure,
length_is);
if (has_pointer)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, attrs,
type, 0, array, 0, pointer_start_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x0, /* FIXME: write out conversion data */\n");
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 2;
return start_offset;
}
}
}
static const var_t *find_array_or_string_in_struct(const type_t *type)
{
/* last field is the first in the fields linked list */
const var_t *last_field = type->fields;
if (is_array_type(last_field->attrs, last_field->ptr_level, last_field->array))
return last_field;
assert((last_field->type->type == RPC_FC_CSTRUCT) ||
(last_field->type->type == RPC_FC_CPSTRUCT) ||
(last_field->type->type == RPC_FC_CVSTRUCT));
return find_array_or_string_in_struct(last_field->type);
}
static size_t write_struct_members(FILE *file, const type_t *type)
{
size_t typestring_size = 0;
var_t *field;
field = type->fields;
while (NEXT_LINK(field)) field = NEXT_LINK(field);
for (; field; field = PREV_LINK(field))
{
unsigned char rtype = field->type->type;
if (is_base_type(rtype))
{
switch (rtype)
{
#define CASE_BASETYPE(fctype) \
case RPC_##fctype: \
print_file(file, 2, "0x%02x,\t\t/* " #fctype " */\n", RPC_##fctype); \
typestring_size++; \
break;
CASE_BASETYPE(FC_BYTE);
CASE_BASETYPE(FC_CHAR);
CASE_BASETYPE(FC_SMALL);
CASE_BASETYPE(FC_USMALL);
CASE_BASETYPE(FC_WCHAR);
CASE_BASETYPE(FC_SHORT);
CASE_BASETYPE(FC_USHORT);
CASE_BASETYPE(FC_LONG);
CASE_BASETYPE(FC_ULONG);
CASE_BASETYPE(FC_FLOAT);
CASE_BASETYPE(FC_HYPER);
CASE_BASETYPE(FC_DOUBLE);
CASE_BASETYPE(FC_ENUM16);
CASE_BASETYPE(FC_ENUM32);
CASE_BASETYPE(FC_IGNORE);
CASE_BASETYPE(FC_ERROR_STATUS_T);
default:
break;
#undef CASE_BASETYPE
}
}
else
error("Unsupported member type 0x%x\n", rtype);
}
if (typestring_size % 1)
{
print_file(file, 2, "0x%x,\t\t/* FC_PAD */\n", RPC_FC_PAD);
typestring_size++;
}
print_file(file, 2, "0x%x,\t\t/* FC_END */\n", RPC_FC_END);
typestring_size++;
return typestring_size;
}
static size_t write_struct_tfs(FILE *file, const type_t *type,
const char *name, unsigned int *typestring_offset)
{
unsigned int total_size;
const var_t *array;
size_t start_offset;
size_t array_offset;
size_t pointer_offset;
switch (type->type)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
total_size = type_memsize(type, 0, NULL);
if (total_size > USHRT_MAX)
error("structure size for parameter %s exceeds %d bytes by %d bytes\n",
name, USHRT_MAX, total_size - USHRT_MAX);
if (type->type == RPC_FC_PSTRUCT)
{
pointer_offset = *typestring_offset;
write_pointers(file, NULL, type, 0, NULL, 0, typestring_offset);
}
else pointer_offset = 0; /* silence warning */
start_offset = *typestring_offset;
if (type->type == RPC_FC_STRUCT)
WRITE_FCTYPE(file, FC_STRUCT, *typestring_offset);
else
WRITE_FCTYPE(file, FC_PSTRUCT, *typestring_offset);
/* alignment */
print_file(file, 2, "0x3,\n"); /* FIXME */
/* total size */
print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", total_size, total_size);
*typestring_offset += 4;
if (type->type == RPC_FC_PSTRUCT)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, NULL,
type, 0, NULL, 0, pointer_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
/* member layout */
*typestring_offset += write_struct_members(file, type);
return start_offset;
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
total_size = type_memsize(type, 0, NULL);
if (total_size > USHRT_MAX)
error("structure size for parameter %s exceeds %d bytes by %d bytes\n",
name, USHRT_MAX, total_size - USHRT_MAX);
array = find_array_or_string_in_struct(type);
current_structure = type;
array_offset = write_array_tfs(file, array->attrs, array->type,
array->array, array->name,
typestring_offset);
current_structure = NULL;
if (type->type == RPC_FC_CPSTRUCT)
{
pointer_offset = *typestring_offset;
write_pointers(file, NULL, type, 0, NULL, 0, typestring_offset);
}
else pointer_offset = 0; /* silence warning */
start_offset = *typestring_offset;
if (type->type == RPC_FC_CSTRUCT)
WRITE_FCTYPE(file, FC_CSTRUCT, *typestring_offset);
else
WRITE_FCTYPE(file, FC_CPSTRUCT, *typestring_offset);
/* alignment */
print_file(file, 2, "0x0,\n");
/* total size */
print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", total_size, total_size);
*typestring_offset += 4;
print_file(file, 2, "NdrFcShort(0x%x), /* offset = %d (%u) */\n",
array_offset - *typestring_offset,
array_offset - *typestring_offset,
array_offset);
*typestring_offset += 2;
if (type->type == RPC_FC_CPSTRUCT)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, NULL,
type, 0, NULL, 0, pointer_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
return start_offset;
case RPC_FC_CVSTRUCT:
total_size = type_memsize(type, 0, NULL);
if (total_size > USHRT_MAX)
error("structure size for parameter %s exceeds %d bytes by %d bytes\n",
name, USHRT_MAX, total_size - USHRT_MAX);
array = find_array_or_string_in_struct(type);
current_structure = type;
if (is_attr(array->attrs, ATTR_STRING))
array_offset = write_string_tfs(file, array->attrs, array->type,
array->array, array->name,
typestring_offset);
else
array_offset = write_array_tfs(file, array->attrs, array->type,
array->array, array->name,
typestring_offset);
current_structure = NULL;
pointer_offset = *typestring_offset;
if (!write_pointers(file, NULL, type, 0, NULL, 0, typestring_offset))
pointer_offset = 0;
start_offset = *typestring_offset;
WRITE_FCTYPE(file, FC_CVSTRUCT, *typestring_offset);
/* alignment */
print_file(file, 2, "0x0,\n");
/* total size */
print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", total_size, total_size);
*typestring_offset += 4;
print_file(file, 2, "NdrFcShort(0x%x), /* offset = %d (%u) */\n",
array_offset - *typestring_offset,
array_offset - *typestring_offset,
array_offset);
*typestring_offset += 2;
if (pointer_offset != 0)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
*typestring_offset += write_pointer_description(file, NULL,
type, 0, NULL, 0, pointer_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
return start_offset;
default:
error("write_struct_tfs: Unimplemented for type 0x%x\n", type->type);
return *typestring_offset;
}
}
static void write_pointer_only_tfs(FILE *file, const attr_t *attrs, int pointer_type,
unsigned char flags, size_t offset,
unsigned int *typeformat_offset)
{
int in_attr, out_attr;
in_attr = is_attr(attrs, ATTR_IN);
out_attr = is_attr(attrs, ATTR_OUT);
if (!in_attr && !out_attr) in_attr = 1;
if (out_attr && !in_attr && pointer_type == RPC_FC_RP)
flags |= 0x04;
print_file(file, 2, "0x%x, 0x%x,\t\t/* %s",
pointer_type,
flags,
pointer_type == RPC_FC_FP ? "FC_FP" : (pointer_type == RPC_FC_UP ? "FC_UP" : "FC_RP"));
if (file)
{
if (flags & 0x04)
fprintf(file, " [allocated_on_stack]");
if (flags & 0x10)
fprintf(file, " [pointer_deref]");
fprintf(file, " */\n");
}
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", offset, offset);
*typeformat_offset += 4;
}
static size_t write_union_tfs(FILE *file, const attr_t *attrs,
const type_t *type, const char *name,
unsigned int *typeformat_offset)
{
error("write_union_tfs: Unimplemented\n");
return *typeformat_offset;
}
static size_t write_ip_tfs(FILE *file, const attr_t *attrs,
const char *name, unsigned int *typeformat_offset)
{
size_t i;
size_t start_offset = *typeformat_offset;
const UUID *uuid = get_attrp(attrs, ATTR_UUID);
if (! uuid)
error("%s: interface %s missing UUID\n", __FUNCTION__, name);
print_file(file, 2, "0x2f,\t/* FC_IP */\n");
print_file(file, 2, "0x5a,\t/* FC_CONSTANT_IID */\n");
print_file(file, 2, "NdrFcLong(0x%08lx),\n", uuid->Data1);
print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data2);
print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data3);
for (i = 0; i < 8; ++i)
print_file(file, 2, "0x%02x,\n", uuid->Data4[i]);
if (file)
fprintf(file, "\n");
*typeformat_offset += 18;
return start_offset;
}
static int get_ptr_attr(const type_t *t, int def_type)
{
while (TRUE)
{
int ptr_attr = get_attrv(t->attrs, ATTR_POINTERTYPE);
if (ptr_attr)
return ptr_attr;
if (t->kind != TKIND_ALIAS)
return def_type;
t = t->orig;
}
}
static size_t write_typeformatstring_var(FILE *file, int indent,
const var_t *var, unsigned int *typeformat_offset)
{
const type_t *type = var->type;
int var_ptrs = var->ptr_level, type_ptrs = 0;
int is_str = is_attr(var->attrs, ATTR_STRING);
chat("write_typeformatstring_var: %s\n", var->name);
while (TRUE)
{
is_str = is_str || is_attr(type->attrs, ATTR_STRING);
if (type->kind == TKIND_ALIAS)
type = type->orig;
else if (is_ptr(type))
{
++type_ptrs;
type = type->ref;
}
else
{
type = var->type;
break;
}
}
while (TRUE)
{
int ptr_level = var_ptrs + type_ptrs;
int pointer_type = 0;
chat("write_typeformatstring: type->type = 0x%x, type->name = %s, ptr_level = %d\n", type->type, type->name, ptr_level);
/* var attrs only effect the rightmost pointer */
if ((0 < var->ptr_level && var_ptrs == var->ptr_level)
|| (var->ptr_level == 0 && type == var->type))
{
int pointer_attr = get_attrv(var->attrs, ATTR_POINTERTYPE);
if (pointer_attr)
{
if (! ptr_level)
error("'%s': pointer attribute applied to non-pointer type",
var->name);
pointer_type = pointer_attr;
}
else
pointer_type = RPC_FC_RP;
}
else /* pointers below other pointers default to unique */
pointer_type = var_ptrs ? RPC_FC_UP : get_ptr_attr(type, RPC_FC_UP);
if (is_str && ptr_level + (var->array != NULL) == 1)
return write_string_tfs(file, var->attrs, type, var->array, var->name, typeformat_offset);
if (is_array_type(var->attrs, ptr_level, var->array))
return write_array_tfs(file, var->attrs, type, var->array, var->name, typeformat_offset);
if (ptr_level == 0)
{
/* basic types don't need a type format string */
if (is_base_type(type->type))
return 0;
switch (type->type)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_BOGUS_STRUCT:
return write_struct_tfs(file, type, var->name, typeformat_offset);
case RPC_FC_ENCAPSULATED_UNION:
case RPC_FC_NON_ENCAPSULATED_UNION:
return write_union_tfs(file, var->attrs, type, var->name, typeformat_offset);
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
/* nothing to do */
return 0;
default:
error("write_typeformatstring_var: Unsupported type 0x%x for variable %s\n", type->type, var->name);
}
}
else if (ptr_level == 1)
{
size_t start_offset = *typeformat_offset;
int in_attr = is_attr(var->attrs, ATTR_IN);
int out_attr = is_attr(var->attrs, ATTR_OUT);
const type_t *base = is_ptr(type) ? type->ref : type;
if (base->type == RPC_FC_IP)
{
return write_ip_tfs(file, base->attrs, base->name, typeformat_offset);
}
/* special case for pointers to base types */
switch (base->type)
{
#define CASE_BASETYPE(fctype) \
case RPC_##fctype: \
print_file(file, indent, "0x%x, 0x%x, /* %s %s[simple_pointer] */\n", \
pointer_type, \
(!in_attr && out_attr) ? 0x0C : 0x08, \
pointer_type == RPC_FC_FP ? "FC_FP" : (pointer_type == RPC_FC_UP ? "FC_UP" : "FC_RP"), \
(!in_attr && out_attr) ? "[allocated_on_stack] " : ""); \
print_file(file, indent, "0x%02x, /* " #fctype " */\n", RPC_##fctype); \
print_file(file, indent, "0x5c, /* FC_PAD */\n"); \
*typeformat_offset += 4; \
return start_offset
CASE_BASETYPE(FC_BYTE);
CASE_BASETYPE(FC_CHAR);
CASE_BASETYPE(FC_SMALL);
CASE_BASETYPE(FC_USMALL);
CASE_BASETYPE(FC_WCHAR);
CASE_BASETYPE(FC_SHORT);
CASE_BASETYPE(FC_USHORT);
CASE_BASETYPE(FC_LONG);
CASE_BASETYPE(FC_ULONG);
CASE_BASETYPE(FC_FLOAT);
CASE_BASETYPE(FC_HYPER);
CASE_BASETYPE(FC_DOUBLE);
CASE_BASETYPE(FC_ENUM16);
CASE_BASETYPE(FC_ENUM32);
CASE_BASETYPE(FC_IGNORE);
CASE_BASETYPE(FC_ERROR_STATUS_T);
default:
break;
}
}
assert(ptr_level > 0);
if (file)
fprintf(file, "/* %2u */\n", *typeformat_offset);
write_pointer_only_tfs(file, var->attrs, pointer_type,
1 < ptr_level ? 0x10 : 0,
2, typeformat_offset);
if (var_ptrs)
--var_ptrs;
else
{
--type_ptrs;
type = type->ref;
}
}
}
void write_typeformatstring(FILE *file, const ifref_t *ifaces, int for_objects)
{
int indent = 0;
var_t *var;
unsigned int typeformat_offset;
const ifref_t *iface = ifaces;
print_file(file, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "0,\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "NdrFcShort(0x0),\n");
typeformat_offset = 2;
END_OF_LIST(iface);
for (; iface; iface = PREV_LINK(iface))
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
func_t *func = iface->iface->funcs;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
for (; func; func = PREV_LINK(func))
{
current_func = func;
if (func->args)
{
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
write_typeformatstring_var(file, indent, var,
&typeformat_offset);
var = PREV_LINK(var);
}
}
}
}
}
print_file(file, indent, "0x0\n");
indent--;
print_file(file, indent, "}\n");
indent--;
print_file(file, indent, "};\n");
print_file(file, indent, "\n");
}
static unsigned int get_required_buffer_size_type(
const type_t *type, int ptr_level, const expr_t *array,
const char *name, unsigned int *alignment)
{
*alignment = 0;
if (ptr_level == 0 && !array)
{
switch (type->type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
*alignment = 4;
return 1;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
*alignment = 4;
return 2;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_FLOAT:
case RPC_FC_ERROR_STATUS_T:
*alignment = 4;
return 4;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
*alignment = 8;
return 8;
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
return 0;
case RPC_FC_STRUCT:
{
size_t size = 0;
const var_t *field;
for (field = type->fields; field; field = NEXT_LINK(field))
{
unsigned int alignment;
size += get_required_buffer_size_type(
field->type, field->ptr_level, field->array, field->name,
&alignment);
}
return size;
}
default:
error("get_required_buffer_size: Unknown/unsupported type: %s (0x%02x)\n", name, type->type);
return 0;
}
}
return 0;
}
unsigned int get_required_buffer_size(const var_t *var, unsigned int *alignment, enum pass pass)
{
expr_t *size_is = get_attrp(var->attrs, ATTR_SIZEIS);
int has_size = (size_is && (size_is->type != EXPR_VOID));
int in_attr = is_attr(var->attrs, ATTR_IN);
int out_attr = is_attr(var->attrs, ATTR_OUT);
if (!in_attr && !out_attr)
in_attr = 1;
*alignment = 0;
if (pass == PASS_OUT)
{
if (out_attr && var->ptr_level > 0)
{
type_t *type = var->type;
if (type->type == RPC_FC_STRUCT)
{
const var_t *field;
unsigned int size = 36;
for (field = type->fields; field; field = NEXT_LINK(field))
{
unsigned int align;
size += get_required_buffer_size_type(
field->type, field->ptr_level, field->array, field->name,
&align);
}
return size;
}
}
return 0;
}
else
{
if ((!out_attr || in_attr) && !has_size && !is_attr(var->attrs, ATTR_STRING) && !var->array)
{
if (var->ptr_level > 0)
{
type_t *type = var->type;
if (is_base_type(type->type))
{
return 25;
}
else if (type->type == RPC_FC_STRUCT)
{
unsigned int size = 36;
const var_t *field;
for (field = type->fields; field; field = NEXT_LINK(field))
{
unsigned int align;
size += get_required_buffer_size_type(
field->type, field->ptr_level, field->array, field->name,
&align);
}
return size;
}
}
}
return get_required_buffer_size_type(var->type, var->ptr_level, var->array, var->name, alignment);
}
}
static void print_phase_function(FILE *file, int indent, const char *type,
enum remoting_phase phase,
const char *varname, unsigned int type_offset)
{
const char *function;
switch (phase)
{
case PHASE_BUFFERSIZE:
function = "BufferSize";
break;
case PHASE_MARSHAL:
function = "Marshall";
break;
case PHASE_UNMARSHAL:
function = "Unmarshall";
break;
case PHASE_FREE:
function = "Free";
break;
default:
assert(0);
return;
}
print_file(file, indent, "Ndr%s%s(\n", type, function);
indent++;
print_file(file, indent, "&_StubMsg,\n");
print_file(file, indent, "%s%s,\n",
(phase == PHASE_UNMARSHAL) ? "(unsigned char **)&" : "(unsigned char *)",
varname);
print_file(file, indent, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]%s\n",
type_offset, (phase == PHASE_UNMARSHAL) ? "," : ");");
if (phase == PHASE_UNMARSHAL)
print_file(file, indent, "0);\n");
indent--;
}
void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase,
enum pass pass, const var_t *var,
const char *varname)
{
const type_t *type = var->type;
unsigned int size;
unsigned int alignment = 0;
unsigned char rtype;
/* no work to do for other phases, buffer sizing is done elsewhere */
if (phase != PHASE_MARSHAL && phase != PHASE_UNMARSHAL)
return;
rtype = type->type;
switch (rtype)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_SMALL:
case RPC_FC_USMALL:
size = 1;
alignment = 1;
break;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
size = 2;
alignment = 2;
break;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_FLOAT:
case RPC_FC_ERROR_STATUS_T:
size = 4;
alignment = 4;
break;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
size = 8;
alignment = 8;
break;
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
/* no marshalling needed */
return;
default:
error("print_phase_basetype: Unsupported type: %s (0x%02x, ptr_level: 0)\n", var->name, rtype);
size = 0;
}
print_file(file, indent, "_StubMsg.Buffer = (unsigned char *)(((long)_StubMsg.Buffer + %u) & ~0x%x);\n",
alignment - 1, alignment - 1);
if (phase == PHASE_MARSHAL)
{
print_file(file, indent, "*(");
write_type(file, var->type, NULL, var->tname);
if (var->ptr_level)
fprintf(file, " *)_StubMsg.Buffer = *");
else
fprintf(file, " *)_StubMsg.Buffer = ");
fprintf(file, varname);
fprintf(file, ";\n");
}
else if (phase == PHASE_UNMARSHAL)
{
if (pass == PASS_IN || pass == PASS_RETURN)
print_file(file, indent, "");
else
print_file(file, indent, "*");
fprintf(file, varname);
if (pass == PASS_IN && var->ptr_level)
fprintf(file, " = (");
else
fprintf(file, " = *(");
write_type(file, var->type, NULL, var->tname);
fprintf(file, " *)_StubMsg.Buffer;\n");
}
print_file(file, indent, "_StubMsg.Buffer += sizeof(");
write_type(file, var->type, NULL, var->tname);
fprintf(file, ");\n");
}
/* returns whether the MaxCount, Offset or ActualCount members need to be
* filled in for the specified phase */
static inline int is_size_needed_for_phase(enum remoting_phase phase)
{
return (phase != PHASE_UNMARSHAL);
}
void write_remoting_arguments(FILE *file, int indent, const func_t *func,
unsigned int *type_offset, enum pass pass,
enum remoting_phase phase)
{
const expr_t *length_is;
const expr_t *size_is;
int in_attr, out_attr, has_length, has_size, pointer_type;
var_t *var;
if (!func->args)
return;
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
for (; var; *type_offset += get_size_typeformatstring_var(var), var = PREV_LINK(var))
{
const type_t *type = var->type;
unsigned char rtype;
length_is = get_attrp(var->attrs, ATTR_LENGTHIS);
size_is = get_attrp(var->attrs, ATTR_SIZEIS);
has_length = length_is && (length_is->type != EXPR_VOID);
has_size = (size_is && (size_is->type != EXPR_VOID)) || (var->array && !var->array->is_const);
pointer_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!in_attr && !out_attr)
in_attr = 1;
switch (pass)
{
case PASS_IN:
if (!in_attr)
continue;
break;
case PASS_OUT:
if (!out_attr)
continue;
break;
case PASS_RETURN:
break;
}
rtype = type->type;
if (is_string_type(var->attrs, var->ptr_level, var->array))
{
if (var->array && var->array->is_const)
print_phase_function(file, indent, "NonConformantString", phase, var->name, *type_offset);
else
{
if (size_is && is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, size_is, 1);
fprintf(file, ";\n");
}
if ((phase == PHASE_FREE) || (pointer_type == RPC_FC_UP))
print_phase_function(file, indent, "Pointer", phase, var->name, *type_offset);
else
print_phase_function(file, indent, "ConformantString", phase, var->name,
*type_offset + (has_size ? 4 : 2));
}
}
else if (is_array_type(var->attrs, var->ptr_level, var->array))
{
const char *array_type;
if (var->array && NEXT_LINK(var->array)) /* multi-dimensional array */
array_type = "ComplexArray";
else
{
if (!has_length && !has_size)
array_type = "FixedArray";
else if (has_length && !has_size)
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, length_is, 1);
fprintf(file, ";\n\n");
}
array_type = "VaryingArray";
}
else if (!has_length && has_size)
{
if (is_size_needed_for_phase(phase) && phase != PHASE_FREE)
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, size_is ? size_is : var->array, 1);
fprintf(file, ";\n\n");
}
array_type = "ConformantArray";
}
else
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, size_is ? size_is : var->array, 1);
fprintf(file, ";\n");
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, length_is, 1);
fprintf(file, ";\n\n");
}
array_type = "ConformantVaryingArray";
}
}
if (!in_attr && phase == PHASE_FREE)
{
print_file(file, indent, "if (%s)\n", var->name);
indent++;
print_file(file, indent, "_StubMsg.pfnFree(%s);\n", var->name);
}
else if (phase != PHASE_FREE)
{
if (pointer_type == RPC_FC_UP)
print_phase_function(file, indent, "Pointer", phase, var->name, *type_offset);
else
print_phase_function(file, indent, array_type, phase, var->name, *type_offset + 4);
}
}
else if (var->ptr_level == 0 && is_base_type(rtype))
{
print_phase_basetype(file, indent, phase, pass, var, var->name);
}
else if (var->ptr_level == 0)
{
const char *ndrtype;
switch (rtype)
{
case RPC_FC_STRUCT:
ndrtype = "SimpleStruct";
break;
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
ndrtype = "ConformantStruct";
break;
case RPC_FC_CVSTRUCT:
ndrtype = "ConformantVaryingStruct";
break;
case RPC_FC_BOGUS_STRUCT:
ndrtype = "ComplexStruct";
break;
default:
error("write_remoting_arguments: Unsupported type: %s (0x%02x, ptr_level: %d)\n",
var->name, rtype, var->ptr_level);
ndrtype = NULL;
}
print_phase_function(file, indent, ndrtype, phase, var->name, *type_offset);
}
else
{
if ((var->ptr_level == 1) && (pointer_type == RPC_FC_RP) && is_base_type(rtype))
{
print_phase_basetype(file, indent, phase, pass, var, var->name);
}
else if ((var->ptr_level == 1) && (pointer_type == RPC_FC_RP) && (rtype == RPC_FC_STRUCT))
{
if (phase != PHASE_BUFFERSIZE && phase != PHASE_FREE)
print_phase_function(file, indent, "SimpleStruct", phase, var->name, *type_offset + 4);
}
else
{
print_phase_function(file, indent, "Pointer", phase, var->name, *type_offset);
}
}
fprintf(file, "\n");
}
}
size_t get_size_procformatstring_var(const var_t *var)
{
unsigned int type_offset = 2;
return write_procformatstring_var(NULL, 0, var, FALSE, &type_offset);
}
size_t get_size_typeformatstring_var(const var_t *var)
{
unsigned int type_offset = 0;
write_typeformatstring_var(NULL, 0, var, &type_offset);
return type_offset;
}
size_t get_size_procformatstring(const ifref_t *ifaces, int for_objects)
{
const ifref_t *iface = ifaces;
size_t size = 1;
func_t *func;
var_t *var;
END_OF_LIST(iface);
for (; iface; iface = PREV_LINK(iface))
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
func = iface->iface->funcs;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
while (func)
{
/* argument list size */
if (func->args)
{
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
size += get_size_procformatstring_var(var);
var = PREV_LINK(var);
}
}
var = func->def;
/* return value size */
if (is_void(var->type, NULL))
size += 2;
else
size += get_size_procformatstring_var(var);
func = PREV_LINK(func);
}
}
}
return size;
}
size_t get_size_typeformatstring(const ifref_t *ifaces, int for_objects)
{
const ifref_t *iface = ifaces;
size_t size = 3;
func_t *func;
var_t *var;
END_OF_LIST(iface);
for (; iface; iface = PREV_LINK(iface))
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
func = iface->iface->funcs;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
while (func)
{
/* argument list size */
if (func->args)
{
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
size += get_size_typeformatstring_var(var);
var = PREV_LINK(var);
}
}
func = PREV_LINK(func);
}
}
}
return size;
}
static void write_struct_expr(FILE *h, const expr_t *e, int brackets,
const var_t *fields, const char *structvar)
{
switch (e->type) {
case EXPR_VOID:
break;
case EXPR_NUM:
fprintf(h, "%ld", e->u.lval);
break;
case EXPR_HEXNUM:
fprintf(h, "0x%lx", e->u.lval);
break;
case EXPR_TRUEFALSE:
if (e->u.lval == 0)
fprintf(h, "FALSE");
else
fprintf(h, "TRUE");
break;
case EXPR_IDENTIFIER:
{
const var_t *field;
for (field = fields; field; field = NEXT_LINK(field))
{
if (!strcmp(e->u.sval, field->name))
{
fprintf(h, "%s->%s", structvar, e->u.sval);
break;
}
}
if (!field) error("no field found for identifier %s\n", e->u.sval);
break;
}
case EXPR_NEG:
fprintf(h, "-");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_NOT:
fprintf(h, "~");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_PPTR:
fprintf(h, "*");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_CAST:
fprintf(h, "(");
write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
fprintf(h, ")");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_SIZEOF:
fprintf(h, "sizeof(");
write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
fprintf(h, ")");
break;
case EXPR_SHL:
case EXPR_SHR:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_ADD:
case EXPR_SUB:
case EXPR_AND:
case EXPR_OR:
if (brackets) fprintf(h, "(");
write_struct_expr(h, e->ref, 1, fields, structvar);
switch (e->type) {
case EXPR_SHL: fprintf(h, " << "); break;
case EXPR_SHR: fprintf(h, " >> "); break;
case EXPR_MUL: fprintf(h, " * "); break;
case EXPR_DIV: fprintf(h, " / "); break;
case EXPR_ADD: fprintf(h, " + "); break;
case EXPR_SUB: fprintf(h, " - "); break;
case EXPR_AND: fprintf(h, " & "); break;
case EXPR_OR: fprintf(h, " | "); break;
default: break;
}
write_struct_expr(h, e->u.ext, 1, fields, structvar);
if (brackets) fprintf(h, ")");
break;
case EXPR_COND:
if (brackets) fprintf(h, "(");
write_struct_expr(h, e->ref, 1, fields, structvar);
fprintf(h, " ? ");
write_struct_expr(h, e->u.ext, 1, fields, structvar);
fprintf(h, " : ");
write_struct_expr(h, e->ext2, 1, fields, structvar);
if (brackets) fprintf(h, ")");
break;
}
}
int write_expr_eval_routines(FILE *file, const char *iface)
{
int result = 0;
struct expr_eval_routine *eval;
unsigned short callback_offset = 0;
LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
{
int indent = 0;
result = 1;
print_file(file, indent, "static void __RPC_USER %s_%sExprEval_%04u(PMIDL_STUB_MESSAGE pStubMsg)\n",
iface, eval->structure->name, callback_offset);
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "struct %s *" STRUCT_EXPR_EVAL_VAR " = (struct %s *)(pStubMsg->StackTop - %u);\n",
eval->structure->name, eval->structure->name, eval->structure_size);
fprintf(file, "\n");
print_file(file, indent, "pStubMsg->Offset = 0;\n"); /* FIXME */
print_file(file, indent, "pStubMsg->MaxCount = (unsigned long)");
write_struct_expr(file, eval->expr, 1, eval->structure->fields, STRUCT_EXPR_EVAL_VAR);
fprintf(file, ";\n");
indent--;
print_file(file, indent, "}\n\n");
callback_offset++;
}
return result;
}
void write_expr_eval_routine_list(FILE *file, const char *iface)
{
struct expr_eval_routine *eval;
struct expr_eval_routine *cursor;
unsigned short callback_offset = 0;
fprintf(file, "static const EXPR_EVAL ExprEvalRoutines[] =\n");
fprintf(file, "{\n");
LIST_FOR_EACH_ENTRY_SAFE(eval, cursor, &expr_eval_routines, struct expr_eval_routine, entry)
{
print_file(file, 1, "%s_%sExprEval_%04u,\n",
iface, eval->structure->name, callback_offset);
callback_offset++;
list_remove(&eval->entry);
free(eval);
}
fprintf(file, "};\n\n");
}
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