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fixed local extern handling - fixed '!' with symbols

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This commit is contained in:
bellard 2002-08-29 21:57:41 +00:00
parent 41391fbb20
commit 46803f05e0
1 changed files with 43 additions and 30 deletions
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73
tcc.c
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@ -592,9 +592,9 @@ void vset(int t, int r, int v);
void type_to_str(char *buf, int buf_size,
int t, const char *varstr);
char *get_tok_str(int v, CValue *cv);
Sym *external_sym(int v, int u, int r);
static Sym *get_sym_ref(int t, Section *sec,
unsigned long offset, unsigned long size);
static Sym *external_global_sym(int v, int u, int r);
/* section generation */
static void section_realloc(Section *sec, unsigned long new_size);
@ -2891,7 +2891,7 @@ static Sym *get_sym_ref(int t, Section *sec,
}
/* push a reference to a section offset by adding a dummy symbol */
void vpush_ref(int t, Section *sec, unsigned long offset, unsigned long size)
static void vpush_ref(int t, Section *sec, unsigned long offset, unsigned long size)
{
CValue cval;
@ -2899,13 +2899,41 @@ void vpush_ref(int t, Section *sec, unsigned long offset, unsigned long size)
vsetc(t, VT_CONST | VT_SYM, &cval);
}
/* define a new external reference to a symbol 'v' of type 'u' */
static Sym *external_global_sym(int v, int u, int r)
{
Sym *s;
s = sym_find(v);
if (!s) {
/* push forward reference */
s = sym_push1(&global_stack,
v, u | VT_EXTERN, 0);
s->r = r | VT_CONST | VT_SYM;
}
return s;
}
/* define a new external reference to a symbol 'v' of type 'u' */
static Sym *external_sym(int v, int u, int r)
{
Sym *s;
s = sym_find(v);
if (!s) {
/* push forward reference */
s = sym_push(v, u | VT_EXTERN, r | VT_CONST | VT_SYM, 0);
}
return s;
}
/* push a reference to global symbol v */
void vpush_sym(int t, int v)
static void vpush_global_sym(int t, int v)
{
Sym *sym;
CValue cval;
sym = external_sym(v, t, 0);
sym = external_global_sym(v, t, 0);
cval.sym = sym;
vsetc(t, VT_CONST | VT_SYM, &cval);
}
@ -3363,7 +3391,7 @@ void gen_opl(int op)
gfunc_start(&gf, FUNC_CDECL);
gfunc_param(&gf);
gfunc_param(&gf);
vpush_sym(func_old_type, func);
vpush_global_sym(func_old_type, func);
gfunc_call(&gf);
vpushi(0);
vtop->r = REG_IRET;
@ -3883,11 +3911,11 @@ void gen_cvt_itof1(int t)
gfunc_start(&gf, FUNC_CDECL);
gfunc_param(&gf);
if (t == VT_FLOAT)
vpush_sym(func_old_type, TOK___ulltof);
vpush_global_sym(func_old_type, TOK___ulltof);
else if (t == VT_DOUBLE)
vpush_sym(func_old_type, TOK___ulltod);
vpush_global_sym(func_old_type, TOK___ulltod);
else
vpush_sym(func_old_type, TOK___ulltold);
vpush_global_sym(func_old_type, TOK___ulltold);
gfunc_call(&gf);
vpushi(0);
vtop->r = REG_FRET;
@ -3908,11 +3936,11 @@ void gen_cvt_ftoi1(int t)
st = vtop->t & VT_BTYPE;
gfunc_param(&gf);
if (st == VT_FLOAT)
vpush_sym(func_old_type, TOK___fixunssfdi);
vpush_global_sym(func_old_type, TOK___fixunssfdi);
else if (st == VT_DOUBLE)
vpush_sym(func_old_type, TOK___fixunsdfdi);
vpush_global_sym(func_old_type, TOK___fixunsdfdi);
else
vpush_sym(func_old_type, TOK___fixunsxfdi);
vpush_global_sym(func_old_type, TOK___fixunsxfdi);
gfunc_call(&gf);
vpushi(0);
vtop->r = REG_IRET;
@ -4371,7 +4399,7 @@ void vstore(void)
gfunc_param(&gf);
save_regs(0);
vpush_sym(func_old_type, TOK_memcpy);
vpush_global_sym(func_old_type, TOK_memcpy);
gfunc_call(&gf);
/* leave source on stack */
} else if (ft & VT_BITFIELD) {
@ -4950,21 +4978,6 @@ int type_decl(AttributeDef *ad, int *v, int t, int td)
return u;
}
/* define a new external reference to a symbol 'v' of type 'u' */
Sym *external_sym(int v, int u, int r)
{
Sym *s;
s = sym_find(v);
if (!s) {
/* push forward reference */
s = sym_push1(&global_stack,
v, u | VT_EXTERN, 0);
s->r = r | VT_CONST | VT_SYM;
}
return s;
}
/* compute the lvalue VT_LVAL_xxx needed to match type t. */
static int lvalue_type(int t)
{
@ -5115,7 +5128,7 @@ void unary(void)
} else
if (t == '!') {
unary();
if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST)
if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST)
vtop->c.i = !vtop->c.i;
else if ((vtop->r & VT_VALMASK) == VT_CMP)
vtop->c.i = vtop->c.i ^ 1;
@ -5172,7 +5185,7 @@ void unary(void)
error("'%s' undeclared", get_tok_str(t, NULL));
/* for simple function calls, we tolerate undeclared
external reference to int() function */
s = external_sym(t, func_old_type, 0);
s = external_global_sym(t, func_old_type, 0);
}
vset(s->t, s->r, s->c);
/* if forward reference, we must point to s */
@ -5954,7 +5967,7 @@ static void init_putz(int t, Section *sec, unsigned long c, int size)
gfunc_param(&gf);
vset(VT_INT, VT_LOCAL, c);
gfunc_param(&gf);
vpush_sym(func_old_type, TOK_memset);
vpush_global_sym(func_old_type, TOK_memset);
gfunc_call(&gf);
}
}