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Handle the special defs.

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This commit is contained in:
Bill Currie 2011-03-02 12:26:53 +09:00
parent 330e76a9ac
commit fda46a4aca
1 changed files with 62 additions and 15 deletions
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77
tools/qfcc/source/linker.c
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@ -57,6 +57,7 @@ static __attribute__ ((used)) const char rcsid[] = "$Id$";
#include "QF/pakfile.h"
#include "QF/va.h"
#include "class.h"
#include "codespace.h"
#include "def.h"
#include "defspace.h"
@ -151,6 +152,14 @@ static defspace_t *work_type_data;
static qfo_reloc_t *work_loose_relocs;
static int work_num_loose_relocs;
static defspace_t **work_spaces[qfo_num_spaces] = {
0, 0, 0,
&work_near_data,
&work_far_data,
&work_entity_data,
0,
};
static dstring_t *linker_current_file;
#define QFOSTR(q,s) QFO_GETSTR (q, s)
@ -392,19 +401,11 @@ add_code (qfo_mspace_t *code)
static void
add_data (int space, qfo_mspace_t *data)
{
defspace_t *work_spaces[qfo_num_spaces] = {
0, 0, 0,
work_near_data,
work_far_data,
work_entity_data,
0,
};
if (space < 0 || space >= qfo_num_spaces || !work_spaces[space])
internal_error (0, "bad space for add_data (): %d", space);
defspace_add_data (work_spaces[space], data->d.data, data->data_size);
work->spaces[space].d.data = work_spaces[space]->data;
work->spaces[space].data_size = work_spaces[space]->size;
defspace_add_data (*work_spaces[space], data->d.data, data->data_size);
work->spaces[space].d.data = (*work_spaces[space])->data;
work->spaces[space].data_size = (*work_spaces[space])->size;
}
/** Add a defspace to the working qfo.
@ -490,9 +491,31 @@ transfer_type (qfo_t *qfo, qfo_mspace_t *space, pointer_t type_offset)
}
static void
define_def (const char *name, const char *type,
unsigned flags, int size, int v)
define_def (qfo_mspace_t *space, const char *name, type_t *type,
unsigned flags, int v)
{
qfo_def_t *def;
defref_t *ref;
if (space->type != qfos_data || space->id < 0
|| space->id >= qfo_num_spaces || !work_spaces[space->id])
internal_error (0, "bad space for define_def()");
space->defs = realloc (space->defs,
(space->num_defs + 1) * sizeof (qfo_def_t));
def = space->defs + space->num_defs++;
memset (def, 0, sizeof (*def));
def->name = add_string (name);
def->type = -add_string (type->encoding); // this will be fixed later
def->offset = defspace_alloc_loc (*work_spaces[space->id],
type_size (type));
def->flags = flags;
(*work_spaces[space->id])->data[def->offset].integer_var = v;
ref = get_defref (def, space);
work_defrefs = realloc (work_defrefs,
(num_work_defrefs + 1) * sizeof (defref_t *));
work_defrefs[num_work_defrefs++] = ref;
Hash_Add (defined_defs, ref);
}
/** Initialize the linker state.
@ -500,6 +523,8 @@ define_def (const char *name, const char *type,
void
linker_begin (void)
{
size_t i;
linker_current_file = dstring_newstr ();
extern_defs = Hash_NewTable (16381, defs_get_key, 0, 0);
@ -518,6 +543,8 @@ linker_begin (void)
work->spaces[qfo_far_data_space].type = qfos_data;
work->spaces[qfo_entity_space].type = qfos_entity;
work->spaces[qfo_type_space].type = qfos_type;
for (i = 0; i < (size_t) qfo_num_spaces; i++)
work->spaces[i].id = i;
// adding data will take care of connecting the work qfo spaces with
// the actual space data
@ -529,6 +556,16 @@ linker_begin (void)
work_type_data = defspace_new ();
pr.strings = work_strings;
if (!options.partial_link) {
for (i = 0;
i < sizeof (builtin_symbols) / sizeof (builtin_symbols[0]);
i++) {
define_def (&work->spaces[qfo_near_data_space],
builtin_symbols[i].name, builtin_symbols[i].type,
builtin_symbols[i].flags, 0);
}
}
}
typedef int (*space_func) (qfo_t *qfo, qfo_mspace_t *space, int pass);
@ -953,12 +990,22 @@ linker_finish (void)
&& QFO_TYPETYPE (work, d->type) == ev_entity)
def_warning (d, "@self and self used together");
}
define_def (".self", "E", 0, 1, 0);
define_def (&work->spaces[qfo_near_data_space], ".self",
&type_entity, QFOD_GLOBAL, 0);
did_self = 1;
} else if (strcmp (name, ".this") == 0 && !did_this) {
pointer_t offset;
type_t *type;
int flags;
if (!class_Class.super_class)
class_init ();
type = field_type (&type_ClassPtr);
offset = defspace_alloc_loc (work_entity_data, 1);
define_def (".this", "F@", QFOD_NOSAVE, 1, offset);
flags = (QFOD_GLOBAL | QFOD_CONSTANT
| QFOD_INITIALIZED | QFOD_NOSAVE);
define_def (&work->spaces[qfo_near_data_space], ".this",
type, flags, offset);
did_this = 1;
}
}