static struct symtab *
addstr(char *n)
{
NODE *p = block(NAME, NIL, NIL, FLOAT, 0, 0);
struct symtab *sp;
NODE *q;
struct attr *ap;
struct rstack *rp;
extern struct rstack *rpole;
p->n_type = ctype(ULONGLONG);
rpole = rp = bstruct(NULL, STNAME, NULL);
soumemb(p, loti, 0);
soumemb(p, hiti, 0);
q = dclstruct(rp);
sp = q->n_sp = lookup(addname(n), 0);
defid(q, TYPEDEF);
ap = attr_new(GCC_ATYP_MODE, 3);
ap->sarg(0) = addname("TI");
ap->iarg(1) = 0;
sp->sap = attr_add(sp->sap, ap);
nfree(q);
nfree(p);
return sp;
}
/*
* The "initial exec" tls model.
*/
static NODE *
tlsinitialexec(NODE *p)
{
NODE *q, *r, *s;
char *s1, *s2;
/*
* movq %fs:0,%rax
* addq x@GOTTPOFF(%rip),%rax
*/
q = bcon(0);
q->n_type = STRTY;
s = ccopy(r = tempnode(0, INCREF(p->n_type), p->n_df, p->n_ap));
r = mkx("=r", r);
r = block(XASM, r, q, INT, 0, 0);
s1 = "movq %%fs:0,%0\n\taddq ";
s2 = "@GOTTPOFF(%%rip),%0";
if (attr_find(p->n_sp->sap, ATTR_SONAME) == NULL) {
p->n_sp->sap = attr_add(p->n_sp->sap, attr_new(ATTR_SONAME, 1));
p->n_sp->sap->sarg(0) = p->n_sp->sname;
}
r->n_name = mk3str(s1,
attr_find(p->n_sp->sap, ATTR_SONAME)->sarg(0), s2);
r = block(COMOP, r, s, INCREF(p->n_type), p->n_df, p->n_ap);
r = buildtree(UMUL, r, NIL);
tfree(p);
return r;
}
/*
* Declare a namespace.
*/
void
dclns(NODE *attr, char *n)
{
struct symtab *sp;
struct attr *ap = gcc_attr_parse(attr);
if (cppdebug)printf("declaring namespace %s\n", n);
n = addname(n);
sp = sfind(n, nscur->sup);
while (sp != NULL) {
if (sp->sname == n && sp->sclass == NSPACE)
break;
sp = sfind(n, sp->snext);
}
if (sp == NULL) {
/* New namespace */
sp = getsymtab(n, 0);
sp->sclass = NSPACE;
INSSYM(sp);
}
nscur = sp;
if (cppdebug)printf("declaring namespace2 %s\n", nscur->sname);
sp->sap = attr_add(sp->sap, ap); /* XXX check attributes */
}
void
myp2tree(NODE *p)
{
struct attr *ap;
struct symtab *sp, sps;
static int dblxor, fltxor;
int codeatyp(NODE *);
if (p->n_op == STCALL || p->n_op == USTCALL) {
/* save struct encoding */
p->n_ap = attr_add(p->n_ap,
ap = attr_new(ATTR_AMD64_CMPLRET, 1));
ap->iarg(0) = codeatyp(p);
}
if (p->n_op == UMINUS && (p->n_type == FLOAT || p->n_type == DOUBLE)) {
/* Store xor code for sign change */
if (dblxor == 0) {
dblxor = getlab();
fltxor = getlab();
sps.stype = LDOUBLE;
sps.squal = CON >> TSHIFT;
sps.sflags = sps.sclass = 0;
sps.sname = "";
sps.slevel = 1;
sps.sap = NULL;
sps.soffset = dblxor;
locctr(DATA, &sps);
defloc(&sps);
printf("\t.long 0,0x80000000,0,0\n");
printf(LABFMT ":\n", fltxor);
printf("\t.long 0x80000000,0,0,0\n");
}
p->n_ap = attr_add(p->n_ap,
ap = attr_new(ATTR_AMD64_XORLBL, 1));
ap->iarg(0) = p->n_type == FLOAT ? fltxor : dblxor;
return;
}
/*
* Check if we may have to do a cast to/from TI.
*/
NODE *
gcc_eval_ticast(int op, NODE *p1, NODE *p2)
{
struct attr *a1, *a2;
int t;
a2 = NULL; /* XXX flow analysis */
if ((a1 = isti(p1)) == NULL && (a2 = isti(p2)) == NULL)
return NIL;
if (op == RETURN)
p1 = p1tcopy(p1);
if (a1 == NULL) {
if (a2 == NULL)
cerror("gcc_eval_ticast error");
switch (p1->n_type) {
case LDOUBLE:
p2 = doacall(floatuntixfsp,
nametree(floatuntixfsp), p2);
tfree(p1);
break;
case ULONG:
case LONG:
p2 = cast(structref(p2, DOT, loti), p1->n_type, 0);
tfree(p1);
break;
case VOID:
return NIL;
default:
uerror("gcc_eval_ticast: %d", p1->n_type);
}
return p2;
}
/* p2 can be anything, but we must cast it to p1 */
t = a1->iarg(1);
if (p2->n_type == STRTY &&
(a2 = attr_find(p2->n_ap, GCC_ATYP_MODE)) &&
strcmp(a2->sarg(0), TISTR) == 0) {
/* Already TI, just add extra mode bits */
a2 = attr_new(GCC_ATYP_MODE, 3);
a2->sarg(0) = TISTR;
a2->iarg(1) = t;
p2->n_ap = attr_add(p2->n_ap, a2);
} else {
p2 = ticast(p2, t);
}
tfree(p1);
return p2;
}
/*
* Called when a identifier has been declared.
*/
void
fixdef(struct symtab *sp)
{
struct attr *ga;
#ifdef HAVE_WEAKREF
/* not many as'es have this directive */
if ((ga = attr_find(sp->sap, GCC_ATYP_WEAKREF)) != NULL) {
char *wr = ga->sarg(0);
char *sn = getsoname(sp);
if (wr == NULL) {
if ((ga = attr_find(sp->sap, GCC_ATYP_ALIAS))) {
wr = ga->sarg(0);
}
}
if (wr == NULL)
printf("\t.weak %s\n", sn);
else
printf("\t.weakref %s,%s\n", sn, wr);
} else
if ((ga = attr_find(sp->sap, GCC_ATYP_ALIAS)) != NULL) {
char *an = ga->sarg(0);
char *sn = getsoname(sp);
char *v;
v = attr_find(sp->sap, GCC_ATYP_WEAK) ? "weak" : "globl";
printf("\t.%s %s\n", v, sn);
printf("\t.set %s,%s\n", sn, an);
}
if (alias != NULL && (sp->sclass != PARAM)) {
char *name = getexname(sp);
printf("\t.globl %s\n", name);
printf("%s = ", name);
printf("%s\n", exname(alias));
alias = NULL;
}
if ((constructor || destructor) && (sp->sclass != PARAM)) {
NODE *p = p1alloc();
p->n_op = NAME;
p->n_sp =
(struct symtab *)(constructor ? "constructor" : "destructor");
sp->sap = attr_add(sp->sap, gcc_attr_parse(p));
constructor = destructor = 0;
}
#endif
}
/*
* Create a reference for a TLS variable.
* This is the "General dynamic" version.
*/
static NODE *
tlspic(NODE *p)
{
NODE *q, *r, *s;
char *s1, *s2;
/*
* .byte 0x66
* leaq x@TLSGD(%rip),%rdi
* .word 0x6666
* rex64
* call __tls_get_addr@PLT
*/
/* Need the .byte stuff around. Why? */
/* Use inline assembler */
q = mkx("%rdx", bcon(0));
q = cmop(q, mkx("%rcx", bcon(0)));
q = cmop(q, mkx("%rsi", bcon(0)));
q = cmop(q, mkx("%rdi", bcon(0)));
q = cmop(q, mkx("%r8", bcon(0)));
q = cmop(q, mkx("%r9", bcon(0)));
q = cmop(q, mkx("%r10", bcon(0)));
q = cmop(q, mkx("%r11", bcon(0)));
s = ccopy(r = tempnode(0, INCREF(p->n_type), p->n_df, p->n_ap));
r = mkx("=a", r);
r = block(XASM, r, q, INT, 0, 0);
/* Create the magic string */
s1 = ".byte 0x66\n\tleaq ";
s2 = "@TLSGD(%%rip),%%rdi\n"
"\t.word 0x6666\n\trex64\n\tcall __tls_get_addr@PLT";
if (attr_find(p->n_sp->sap, ATTR_SONAME) == NULL) {
p->n_sp->sap = attr_add(p->n_sp->sap, attr_new(ATTR_SONAME, 1));
p->n_sp->sap->sarg(0) = p->n_sp->sname;
}
r->n_name = addstring(mk3str(s1,
attr_find(p->n_sp->sap, ATTR_SONAME)->sarg(0), s2));
r = block(COMOP, r, s, INCREF(p->n_type), p->n_df, p->n_ap);
r = buildtree(UMUL, r, NIL);
tfree(p);
return r;
}
/*
* Extract attributes from a node tree and return attribute entries
* based on its contents.
*/
struct attr *
gcc_attr_parse(NODE *p)
{
struct attr *b, *c;
if (p == NIL)
return NULL;
if (p->n_op != CM) {
b = gcc_attribs(p);
tfree(p);
} else {
b = gcc_attr_parse(p->n_left);
c = gcc_attr_parse(p->n_right);
nfree(p);
b = b ? attr_add(b, c) : c;
}
return b;
}
SLPError generic_set_val(struct xx_SLPAttributes *slp_attr, const char *tag, value_t *value, SLPInsertionPolicy policy, SLPType attr_type)
/* Finds and sets the value named in tag. */
/*
* slp_attr - The attr object to add to.
* tag - the name of the tag to add to.
* value - the already-allocated value object with fields set
* policy - the policy to use when inserting.
* attr_type - the type of the value being added.
*****************************************************************************/
{
var_t *var;
/***** Create a new attribute. *****/
if ( (var = attr_val_find_str(slp_attr, tag)) == NULL) {
/*** Couldn't find a value with this tag. Make a new one. ***/
var = var_new((char *)tag);
if (var == NULL) {
return SLP_MEMORY_ALLOC_FAILED;
}
var->type = attr_type;
/** Add variable to list. **/
attr_add(slp_attr, var);
} else {
SLPError err;
/*** The attribute already exists. ***/
/*** Verify type. ***/
err = attr_type_verify(slp_attr, var, attr_type);
if (err == SLP_TYPE_ERROR && policy == SLP_REPLACE) {
var_list_destroy(var);
var->type = attr_type;
}
else if (err != SLP_OK) {
value_free(value);
return err;
}
}
/***** Set value *****/
var_insert(var, value, policy);
return SLP_OK;
}
/*
* Create a reference for an extern variable.
*/
static P1ND *
picext(P1ND *p)
{
struct attr *ap;
#if defined(ELFABI)
P1ND *q, *r;
struct symtab *sp;
char *name;
q = tempnode(gotnr, PTR|VOID, 0, 0);
name = getexname(p->n_sp);
#ifdef GCC_COMPAT
if ((ap = attr_find(p->n_sp->sap, GCC_ATYP_VISIBILITY)) &&
strcmp(ap->sarg(0), "hidden") == 0) {
/* For hidden vars use GOTOFF */
sp = picsymtab("", name, "@GOTOFF");
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
}
#endif
sp = picsymtab("", name, "@GOT");
#ifdef GCC_COMPAT
if (attr_find(p->n_sp->sap, GCC_ATYP_STDCALL) != NULL)
p->n_sp->sflags |= SSTDCALL;
#endif
sp->sflags = p->n_sp->sflags & SSTDCALL;
sp->sap = attr_add(p->n_sp->sap, sp->sap);
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
q = block(UMUL, q, 0, PTR|VOID, 0, 0);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
#elif defined(MACHOABI)
P1ND *q, *r;
struct symtab *sp;
char buf2[256], *name, *pspn;
name = getsoname(cftnsp);
pspn = getexname(p->n_sp);
if (p->n_sp->sclass == EXTDEF) {
snprintf(buf2, 256, "-L%s$pb", name);
sp = picsymtab("", pspn, buf2);
} else {
snprintf(buf2, 256, "$non_lazy_ptr-L%s$pb", name);
sp = picsymtab("L", pspn, buf2);
addstub(&nlplist, pspn);
}
sp->stype = p->n_sp->stype;
q = tempnode(gotnr, PTR+VOID, 0, 0);
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
if (p->n_sp->sclass != EXTDEF)
q = block(UMUL, q, 0, PTR+VOID, 0, 0);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
#else /* defined(PECOFFABI) || defined(AOUTABI) */
return p;
#endif
}
/*
* Parse attributes from an argument list.
*/
static void
gcc_attribs(NODE *p, void *arg)
{
NODE *q, *r;
struct attr *apo = arg, *ap;
char *name = NULL, *c;
int cw, attr, narg, i;
if (p->n_op == NAME) {
name = (char *)p->n_sp;
} else if (p->n_op == CALL || p->n_op == UCALL) {
name = (char *)p->n_left->n_sp;
} else
cerror("bad variable attribute");
if ((attr = amatch(name, atax, GCC_ATYP_MAX)) == 0) {
werror("unsupported attribute '%s'", name);
goto out;
}
narg = 0;
if (p->n_op == CALL)
for (narg = 1, q = p->n_right; q->n_op == CM; q = q->n_left)
narg++;
cw = atax[attr].typ;
if (!(cw & A_MANY) && ((narg > 3) || ((cw & (1 << narg)) == 0))) {
uerror("wrong attribute arg count");
return;
}
ap = attr_new(attr, 3); /* XXX should be narg */
apo->next = attr_add(apo->next, ap);
q = p->n_right;
switch (narg) {
default:
/* XXX */
while (narg-- > 3) {
r = q;
q = q->n_left;
tfree(r->n_right);
nfree(r);
}
/* FALLTHROUGH */
case 3:
setaarg(cw & (A3_NAME|A3_STR), &ap->aa[2], q->n_right);
r = q;
q = q->n_left;
nfree(r);
/* FALLTHROUGH */
case 2:
setaarg(cw & (A2_NAME|A2_STR), &ap->aa[1], q->n_right);
r = q;
q = q->n_left;
nfree(r);
/* FALLTHROUGH */
case 1:
setaarg(cw & (A1_NAME|A1_STR), &ap->aa[0], q);
p->n_op = UCALL;
/* FALLTHROUGH */
case 0:
break;
}
/* some attributes must be massaged special */
switch (attr) {
case GCC_ATYP_ALIGNED:
if (narg == 0)
ap->aa[0].iarg = ALMAX;
else
ap->aa[0].iarg *= SZCHAR;
break;
case GCC_ATYP_PACKED:
if (narg == 0)
ap->aa[0].iarg = 1; /* bitwise align */
else
ap->aa[0].iarg *= SZCHAR;
break;
case GCC_ATYP_MODE:
if ((i = amatch(ap->aa[0].sarg, mods, ATSZ)) == 0)
werror("unknown mode arg %s", ap->aa[0].sarg);
ap->aa[0].iarg = mods[i].typ;
break;
case GCC_ATYP_VISIBILITY:
c = ap->aa[0].sarg;
if (strcmp(c, "default") && strcmp(c, "hidden") &&
strcmp(c, "internal") && strcmp(c, "protected"))
werror("unknown visibility %s", c);
break;
case GCC_ATYP_TLSMODEL:
c = ap->aa[0].sarg;
if (strcmp(c, "global-dynamic") && strcmp(c, "local-dynamic") &&
strcmp(c, "initial-exec") && strcmp(c, "local-exec"))
werror("unknown tls model %s", c);
break;
default:
break;
}
out:
;
}
/*
* Fixup types when modes given in defid().
*/
void
gcc_modefix(NODE *p)
{
struct attr *ap;
#ifdef TARGET_TIMODE
struct attr *a2;
#endif
struct symtab *sp;
char *s;
int i, u;
if ((ap = attr_find(p->n_ap, GCC_ATYP_MODE)) == NULL)
return;
u = ISUNSIGNED(BTYPE(p->n_type));
if ((i = amatch(ap->aa[0].sarg, mods, ATSZ)) == 0) {
werror("unknown mode arg %s", ap->aa[0].sarg);
return;
}
i = mods[i].typ;
if (i >= 1 && i <= MAXTYPES) {
MODTYPE(p->n_type, ctype(i));
if (u)
p->n_type = ENUNSIGN(p->n_type);
} else switch (i) {
#ifdef TARGET_TIMODE
case 800:
if (BTYPE(p->n_type) == STRTY)
break;
MODTYPE(p->n_type, tisp->stype);
p->n_df = tisp->sdf;
p->n_ap = tisp->sap;
if (ap->iarg(1) == u)
break;
/* must add a new mode struct to avoid overwriting */
a2 = attr_new(GCC_ATYP_MODE, 3);
a2->sarg(0) = ap->sarg(0);
a2->iarg(1) = u;
p->n_ap = attr_add(p->n_ap, a2);
break;
#endif
case FCOMPLEX:
case COMPLEX:
case LCOMPLEX:
/* Destination should have been converted to a struct already */
if (BTYPE(p->n_type) != STRTY)
uerror("gcc_modefix: complex not STRTY");
i -= (FCOMPLEX-FLOAT);
ap = strattr(p->n_ap);
sp = ap->amlist;
if (sp->stype == (unsigned)i)
return; /* Already correct type */
/* we must change to another struct */
s = i == FLOAT ? "0f" :
i == DOUBLE ? "0d" :
i == LDOUBLE ? "0l" : 0;
sp = lookup(addname(s), 0);
for (ap = sp->sap; ap != NULL; ap = ap->next)
p->n_ap = attr_add(p->n_ap, attr_dup(ap));
break;
default:
cerror("gcc_modefix");
}
}
void
gcc_init(void)
{
struct kw *kwp;
NODE *p;
TWORD t;
int i, d_debug;
d_debug = ddebug;
ddebug = 0;
for (kwp = kw; kwp->name; kwp++)
kwp->ptr = addname(kwp->name);
for (i = 0; i < 4; i++) {
struct symtab *sp;
t = ctype(g77t[i]);
p = block(NAME, NIL, NIL, t, NULL, 0);
sp = lookup(addname(g77n[i]), 0);
p->n_sp = sp;
defid(p, TYPEDEF);
nfree(p);
}
ddebug = d_debug;
#ifdef TARGET_TIMODE
{
struct attr *ap;
loti = addname("__loti");
hiti = addname("__hiti");
TISTR = addname("TI");
tisp = addstr("0ti");
cmpti2sp = addftn("__cmpti2", INT);
ucmpti2sp = addftn("__ucmpti2", INT);
addvti3sp = addftn("__addvti3", STRTY);
addvti3sp->sap = tisp->sap;
subvti3sp = addftn("__subvti3", STRTY);
subvti3sp->sap = tisp->sap;
mulvti3sp = addftn("__mulvti3", STRTY);
mulvti3sp->sap = tisp->sap;
divti3sp = addftn("__divti3", STRTY);
divti3sp->sap = tisp->sap;
modti3sp = addftn("__modti3", STRTY);
modti3sp->sap = tisp->sap;
ap = attr_new(GCC_ATYP_MODE, 3);
ap->sarg(0) = TISTR;
ap->iarg(1) = 1;
ap = attr_add(tisp->sap, ap);
udivti3sp = addftn("__udivti3", STRTY);
udivti3sp->sap = ap;
umodti3sp = addftn("__umodti3", STRTY);
umodti3sp->sap = ap;
ashldi3sp = addftn("__ashldi3", ctype(LONGLONG));
ashldi3sp->sap = ap;
ashrdi3sp = addftn("__ashrdi3", ctype(LONGLONG));
ashrdi3sp->sap = ap;
lshrdi3sp = addftn("__lshrdi3", ctype(LONGLONG));
lshrdi3sp->sap = ap;
floatuntixfsp = addftn("__floatuntixf", LDOUBLE);
}
#endif
}
