/*
* This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include "lang_features.h"
#include "warning.h"
#include "diagnostic.h"
+#include "printer.h"
#include "driver/firm_cmdline.h"
+/** The default calling convention. */
+cc_kind_t default_calling_convention = CC_CDECL;
+
static struct obstack _type_obst;
-static FILE *out;
struct obstack *type_obst = &_type_obst;
static bool print_implicit_array_size = false;
obstack_free(type_obst, NULL);
}
-void type_set_output(FILE *stream)
-{
- out = stream;
-}
-
void print_type_qualifiers(type_qualifiers_t qualifiers)
{
- int first = 1;
if (qualifiers & TYPE_QUALIFIER_CONST) {
- fputs(" const" + first, out);
- first = 0;
+ print_string("const ");
}
if (qualifiers & TYPE_QUALIFIER_VOLATILE) {
- fputs(" volatile" + first, out);
- first = 0;
+ print_string("volatile ");
}
if (qualifiers & TYPE_QUALIFIER_RESTRICT) {
- fputs(" restrict" + first, out);
- first = 0;
+ print_string("restrict ");
}
}
static void print_atomic_kinds(atomic_type_kind_t kind)
{
const char *s = get_atomic_kind_name(kind);
- fputs(s, out);
+ print_string(s);
}
/**
static void print_atomic_type(const atomic_type_t *type)
{
print_type_qualifiers(type->base.qualifiers);
- if (type->base.qualifiers != 0)
- fputc(' ', out);
print_atomic_kinds(type->akind);
}
*
* @param type The type.
*/
-static
-void print_complex_type(const complex_type_t *type)
+static void print_complex_type(const complex_type_t *type)
{
- int empty = type->base.qualifiers == 0;
print_type_qualifiers(type->base.qualifiers);
- fputs(" _Complex " + empty, out);
+ print_string("_Complex");
print_atomic_kinds(type->akind);
}
*
* @param type The type.
*/
-static
-void print_imaginary_type(const imaginary_type_t *type)
+static void print_imaginary_type(const imaginary_type_t *type)
{
- int empty = type->base.qualifiers == 0;
print_type_qualifiers(type->base.qualifiers);
- fputs(" _Imaginary " + empty, out);
+ print_string("_Imaginary ");
print_atomic_kinds(type->akind);
}
case LINKAGE_C:
if (c_mode & _CXX)
- fputs("extern \"C\" ", out);
+ print_string("extern \"C\" ");
break;
case LINKAGE_CXX:
if (!(c_mode & _CXX))
- fputs("extern \"C++\" ", out);
+ print_string("extern \"C++\" ");
break;
}
print_type_qualifiers(type->base.qualifiers);
- if (type->base.qualifiers != 0)
- fputc(' ', out);
intern_print_type_pre(type->return_type);
- switch (type->calling_convention) {
- case CC_CDECL: fputs("__cdecl ", out); break;
- case CC_STDCALL: fputs("__stdcall ", out); break;
- case CC_FASTCALL: fputs("__fastcall ", out); break;
- case CC_THISCALL: fputs("__thiscall ", out); break;
- case CC_DEFAULT: break;
+ cc_kind_t cc = type->calling_convention;
+restart:
+ switch (cc) {
+ case CC_CDECL: print_string(" __cdecl"); break;
+ case CC_STDCALL: print_string(" __stdcall"); break;
+ case CC_FASTCALL: print_string(" __fastcall"); break;
+ case CC_THISCALL: print_string(" __thiscall"); break;
+ case CC_DEFAULT:
+ if (default_calling_convention != CC_CDECL) {
+ /* show the default calling convention if its not cdecl */
+ cc = default_calling_convention;
+ goto restart;
+ }
+ break;
}
}
static void print_function_type_post(const function_type_t *type,
const scope_t *parameters)
{
- fputc('(', out);
+ print_string("(");
bool first = true;
if (parameters == NULL) {
function_parameter_t *parameter = type->parameters;
if (first) {
first = false;
} else {
- fputs(", ", out);
+ print_string(", ");
}
print_type(parameter->type);
}
if (first) {
first = false;
} else {
- fputs(", ", out);
+ print_string(", ");
}
const type_t *const type = parameter->declaration.type;
if (type == NULL) {
- fputs(parameter->base.symbol->string, out);
+ print_string(parameter->base.symbol->string);
} else {
print_type_ext(type, parameter->base.symbol, NULL);
}
if (first) {
first = false;
} else {
- fputs(", ", out);
+ print_string(", ");
}
- fputs("...", out);
+ print_string("...");
}
if (first && !type->unspecified_parameters) {
- fputs("void", out);
+ print_string("void");
}
- fputc(')', out);
+ print_string(")");
intern_print_type_post(type->return_type);
}
type_t const *const points_to = type->points_to;
intern_print_type_pre(points_to);
if (points_to->kind == TYPE_ARRAY || points_to->kind == TYPE_FUNCTION)
- fputs(" (", out);
+ print_string(" (");
variable_t *const variable = type->base_variable;
if (variable != NULL) {
- fputs(" __based(", out);
- fputs(variable->base.base.symbol->string, out);
- fputs(") ", out);
+ print_string(" __based(");
+ print_string(variable->base.base.symbol->string);
+ print_string(") ");
}
- fputc('*', out);
+ print_string("*");
type_qualifiers_t const qual = type->base.qualifiers;
if (qual != 0)
- fputc(' ', out);
+ print_string(" ");
print_type_qualifiers(qual);
}
{
type_t const *const points_to = type->points_to;
if (points_to->kind == TYPE_ARRAY || points_to->kind == TYPE_FUNCTION)
- fputc(')', out);
+ print_string(")");
intern_print_type_post(points_to);
}
type_t const *const refers_to = type->refers_to;
intern_print_type_pre(refers_to);
if (refers_to->kind == TYPE_ARRAY || refers_to->kind == TYPE_FUNCTION)
- fputs(" (", out);
- fputc('&', out);
+ print_string(" (");
+ print_string("&");
}
/**
{
type_t const *const refers_to = type->refers_to;
if (refers_to->kind == TYPE_ARRAY || refers_to->kind == TYPE_FUNCTION)
- fputc(')', out);
+ print_string(")");
intern_print_type_post(refers_to);
}
*/
static void print_array_type_post(const array_type_t *type)
{
- fputc('[', out);
+ print_string("[");
if (type->is_static) {
- fputs("static ", out);
+ print_string("static ");
}
print_type_qualifiers(type->base.qualifiers);
- if (type->base.qualifiers != 0)
- fputc(' ', out);
if (type->size_expression != NULL
&& (print_implicit_array_size || !type->has_implicit_size)) {
print_expression(type->size_expression);
}
- fputc(']', out);
+ print_string("]");
intern_print_type_post(type->element_type);
}
*/
static void print_bitfield_type_post(const bitfield_type_t *type)
{
- fputs(" : ", out);
+ print_string(" : ");
print_expression(type->size_expression);
intern_print_type_post(type->base_type);
}
*/
void print_enum_definition(const enum_t *enume)
{
- fputs("{\n", out);
+ print_string("{\n");
change_indent(1);
entry = entry->base.next) {
print_indent();
- fputs(entry->base.symbol->string, out);
+ print_string(entry->base.symbol->string);
if (entry->enum_value.value != NULL) {
- fputs(" = ", out);
+ print_string(" = ");
/* skip the implicit cast */
expression_t *expression = entry->enum_value.value;
}
print_expression(expression);
}
- fputs(",\n", out);
+ print_string(",\n");
}
change_indent(-1);
print_indent();
- fputc('}', out);
+ print_string("}");
}
/**
*/
static void print_type_enum(const enum_type_t *type)
{
- int empty = type->base.qualifiers == 0;
print_type_qualifiers(type->base.qualifiers);
- fputs(" enum " + empty, out);
+ print_string("enum ");
enum_t *enume = type->enume;
symbol_t *symbol = enume->base.symbol;
if (symbol != NULL) {
- fputs(symbol->string, out);
+ print_string(symbol->string);
} else {
print_enum_definition(enume);
}
*/
void print_compound_definition(const compound_t *compound)
{
- fputs("{\n", out);
+ print_string("{\n");
change_indent(1);
entity_t *entity = compound->members.entities;
print_indent();
print_entity(entity);
- fputc('\n', out);
+ print_string("\n");
}
change_indent(-1);
print_indent();
- fputc('}', out);
+ print_string("}");
if (compound->modifiers & DM_TRANSPARENT_UNION) {
- fputs("__attribute__((__transparent_union__))", out);
+ print_string("__attribute__((__transparent_union__))");
}
}
*/
static void print_compound_type(const compound_type_t *type)
{
- int empty = type->base.qualifiers == 0;
print_type_qualifiers(type->base.qualifiers);
if (type->base.kind == TYPE_COMPOUND_STRUCT) {
- fputs(" struct " + empty, out);
+ print_string("struct ");
} else {
assert(type->base.kind == TYPE_COMPOUND_UNION);
- fputs(" union " + empty, out);
+ print_string("union ");
}
compound_t *compound = type->compound;
symbol_t *symbol = compound->base.symbol;
if (symbol != NULL) {
- fputs(symbol->string, out);
+ print_string(symbol->string);
} else {
print_compound_definition(compound);
}
static void print_typedef_type_pre(const typedef_type_t *const type)
{
print_type_qualifiers(type->base.qualifiers);
- if (type->base.qualifiers != 0)
- fputc(' ', out);
- fputs(type->typedefe->base.symbol->string, out);
+ print_string(type->typedefe->base.symbol->string);
}
/**
*/
static void print_typeof_type_pre(const typeof_type_t *const type)
{
- fputs("typeof(", out);
+ print_string("typeof(");
if (type->expression != NULL) {
print_expression(type->expression);
} else {
print_type(type->typeof_type);
}
- fputc(')', out);
+ print_string(")");
}
/**
{
switch(type->kind) {
case TYPE_ERROR:
- fputs("<error>", out);
+ print_string("<error>");
return;
case TYPE_INVALID:
- fputs("<invalid>", out);
+ print_string("<invalid>");
return;
case TYPE_ENUM:
print_type_enum(&type->enumt);
print_compound_type(&type->compound);
return;
case TYPE_BUILTIN:
- fputs(type->builtin.symbol->string, out);
+ print_string(type->builtin.symbol->string);
return;
case TYPE_FUNCTION:
print_function_type_pre(&type->function);
print_typeof_type_pre(&type->typeoft);
return;
}
- fputs("unknown", out);
+ print_string("unknown");
}
/**
const scope_t *parameters)
{
if (type == NULL) {
- fputs("nil type", out);
+ print_string("nil type");
return;
}
intern_print_type_pre(type);
if (symbol != NULL) {
- fputc(' ', out);
- fputs(symbol->string, out);
+ print_string(" ");
+ print_string(symbol->string);
}
if (type->kind == TYPE_FUNCTION) {
print_function_type_post(&type->function, parameters);
if (func1->linkage != func2->linkage)
return false;
- if (func1->calling_convention != func2->calling_convention)
- return false;
+ cc_kind_t cc1 = func1->calling_convention;
+ if (cc1 == CC_DEFAULT)
+ cc1 = default_calling_convention;
+ cc_kind_t cc2 = func2->calling_convention;
+ if (cc2 == CC_DEFAULT)
+ cc2 = default_calling_convention;
- /* can parameters be compared? */
- if (func1->unspecified_parameters || func2->unspecified_parameters)
- return true;
+ if (cc1 != cc2)
+ return false;
if (func1->variadic != func2->variadic)
return false;
+ /* can parameters be compared? */
+ if ((func1->unspecified_parameters && !func1->kr_style_parameters)
+ || (func2->unspecified_parameters && !func2->kr_style_parameters))
+ return true;
+
/* TODO: handling of unspecified parameters not correct yet */
/* all argument types must be compatible */
return identify_new_type(type);
}
-static entity_t *pack_bitfield_members(il_size_t *size, bool packed,
- type_t *type, size_t offset,
- entity_t *first)
+static entity_t *pack_bitfield_members(il_size_t *struct_offset,
+ il_alignment_t *struct_alignment,
+ bool packed, entity_t *first)
{
- type_t *base_type = skip_typeref(type->bitfield.base_type);
- size_t remaining_bits = get_type_size(base_type) * BITS_PER_BYTE;
- size_t bit_offset = 0;
+ il_size_t offset = *struct_offset;
+ il_alignment_t alignment = *struct_alignment;
+ size_t bit_offset = 0;
entity_t *member;
for (member = first; member != NULL; member = member->base.next) {
if (member->kind != ENTITY_COMPOUND_MEMBER)
- continue;
+ break;
- type_t *member_type = member->declaration.type;
- if (member_type->kind != TYPE_BITFIELD)
+ type_t *type = member->declaration.type;
+ if (type->kind != TYPE_BITFIELD)
break;
- size_t bit_size = member_type->bitfield.bit_size;
+
+ type_t *base_type = skip_typeref(type->bitfield.base_type);
+ il_alignment_t base_alignment = get_type_alignment(base_type);
+ il_alignment_t alignment_mask = base_alignment-1;
+ if (base_alignment > alignment)
+ alignment = base_alignment;
+
+ size_t bit_size = type->bitfield.bit_size;
if (!packed) {
- if (base_type != NULL
- && skip_typeref(member_type->bitfield.base_type) != base_type)
- break;
- if (bit_size > remaining_bits)
- break;
- } else {
- offset += bit_offset / BITS_PER_BYTE;
- *size += bit_offset / BITS_PER_BYTE;
- bit_offset = bit_offset % BITS_PER_BYTE;
+ bit_offset += (offset & alignment_mask) * BITS_PER_BYTE;
+ offset &= ~alignment_mask;
+ size_t base_size = get_type_size(base_type) * BITS_PER_BYTE;
+
+ if (bit_offset + bit_size > base_size || bit_size == 0) {
+ offset += (bit_offset+BITS_PER_BYTE-1) / BITS_PER_BYTE;
+ offset = (offset + base_alignment-1) & ~alignment_mask;
+ bit_offset = 0;
+ }
}
member->compound_member.offset = offset;
member->compound_member.bit_offset = bit_offset;
bit_offset += bit_size;
-
- /* 0-size members end current bucket. multiple 0-size buckets
- * seem to not start-end multiple buckets */
- if (bit_size == 0) {
- remaining_bits = 0;
- } else {
- remaining_bits -= bit_size;
- }
+ offset += bit_offset / BITS_PER_BYTE;
+ bit_offset %= BITS_PER_BYTE;
}
- assert(member != first);
- *size = offset + (bit_offset + (BITS_PER_BYTE-1)) / BITS_PER_BYTE;
+ if (bit_offset > 0)
+ offset += 1;
+
+ *struct_offset = offset;
+ *struct_alignment = alignment;
return member;
}
if (type->compound->layouted)
return;
- il_size_t offset;
- il_size_t size = 0;
+ il_size_t offset = 0;
il_alignment_t alignment = compound->alignment;
bool need_pad = false;
continue;
}
- type_t *base_type = m_type;
if (skipped->kind == TYPE_BITFIELD) {
- base_type = m_type->bitfield.base_type;
+ entry = pack_bitfield_members(&offset, &alignment,
+ compound->packed, entry);
+ continue;
}
- il_alignment_t m_alignment = get_type_alignment(base_type);
- il_size_t m_size = get_type_size(base_type);
+ il_alignment_t m_alignment = get_type_alignment(m_type);
if (m_alignment > alignment)
alignment = m_alignment;
- if (compound->packed) {
- offset = size;
- } else {
- offset = (size + m_alignment - 1) & -m_alignment;
- }
+ if (!compound->packed) {
+ il_size_t new_offset = (offset + m_alignment-1) & -m_alignment;
- if (offset > size)
- need_pad = true;
+ if (new_offset > offset) {
+ need_pad = true;
+ offset = new_offset;
+ }
+ }
- if (skipped->kind == TYPE_BITFIELD) {
- entry = pack_bitfield_members(&size, compound->packed,
- m_type, offset, entry);
- } else {
- entry->compound_member.offset = offset;
- size = offset + m_size;
+ entry->compound_member.offset = offset;
+ offset += get_type_size(m_type);
- entry = entry->base.next;
- }
+ entry = entry->base.next;
}
if (!compound->packed) {
- offset = (size + alignment - 1) & -alignment;
- if (offset > size)
+ il_size_t new_offset = (offset + alignment-1) & -alignment;
+ if (new_offset > offset) {
need_pad = true;
- } else {
- offset = size;
+ offset = new_offset;
+ }
}
if (need_pad) {
static __attribute__((unused))
void dbg_type(const type_t *type)
{
- FILE *old_out = out;
- out = stderr;
+ print_to_file(stderr);
print_type(type);
- puts("\n");
+ print_string("\n");
fflush(stderr);
- out = old_out;
}
projects / cparser / blobdiff