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genembedtramp for arm

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R=rsc
APPROVED=rsc
DELTA=104  (0 added, 33 deleted, 71 changed)
OCL=33531
CL=33535
This commit is contained in:
Kai Backman 2009-08-19 13:57:11 -07:00
parent 22140a17a0
commit 8e96b45fd6
1 changed files with 64 additions and 97 deletions
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161
src/cmd/5g/gobj.c
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@ -570,110 +570,77 @@ dsymptr(Sym *s, int off, Sym *x, int xoff)
void
genembedtramp(Type *rcvr, Type *method, Sym *newnam)
{
fatal("genembedtramp not implemented");
// TODO(kaib): re-lift from 8g
// Sym *e;
// int c, d, o, loaded;
// Prog *p;
// Type *f;
Sym *e;
int c, d, o;
Prog *p;
Type *f;
// e = lookup(b->name);
// for(d=0; d<nelem(dotlist); d++) {
// c = adddot1(e, t, d, nil);
// if(c == 1)
// goto out;
// }
// fatal("genembedtramp %T.%s", t, b->name);
e = method->sym;
for(d=0; d<nelem(dotlist); d++) {
c = adddot1(e, rcvr, d, nil);
if(c == 1)
goto out;
}
fatal("genembedtramp %T.%S", rcvr, method->sym);
// out:
// // print("genembedtramp %d\n", d);
// // print(" t = %lT\n", t);
// // print(" name = %s\n", b->name);
// // print(" sym = %S\n", b->sym);
// // print(" hash = 0x%ux\n", b->hash);
out:
newplist()->name = newname(newnam);
// newplist()->name = newname(b->sym);
//TEXT main·S_test2(SB),7,$0
p = pc;
gins(ATEXT, N, N);
p->from.type = D_OREG;
p->from.name = D_EXTERN;
p->from.sym = newnam;
p->to.type = D_CONST2;
p->reg = 7;
p->to.offset2 = 0;
p->to.reg = NREG;
print("1. %P\n", p);
// //TEXT main·S_test2(SB),7,$0
// p = pc;
// gins(ATEXT, N, N);
// p->from.type = D_EXTERN;
// p->from.sym = b->sym;
// p->to.type = D_CONST;
// p->to.offset = 0;
// p->reg = 7;
// //print("1. %P\n", p);
o = 0;
for(c=d-1; c>=0; c--) {
f = dotlist[c].field;
o += f->width;
if(!isptr[f->type->etype])
continue;
// loaded = 0;
// o = 0;
// for(c=d-1; c>=0; c--) {
// f = dotlist[c].field;
// o += f->width;
// if(!isptr[f->type->etype])
// continue;
// if(!loaded) {
// loaded = 1;
// //MOVQ 8(SP), AX
// p = pc;
// gins(AMOVQ, N, N);
// p->from.type = D_INDIR+D_SP;
// p->from.offset = 8;
// p->to.type = D_AX;
// //print("2. %P\n", p);
// }
//MOVW o(R0), R0
p = pc;
gins(AMOVW, N, N);
p->from.type = D_OREG;
p->from.reg = REGARG;
p->from.offset = o;
p->to.type = D_REG;
p->to.reg = REGARG;
print("2. %P\n", p);
o = 0;
}
if(o != 0) {
//MOVW $XX(R0), R0
p = pc;
gins(AMOVW, N, N);
p->from.type = D_CONST;
p->from.reg = REGARG;
p->from.offset = o;
p->to.type = D_REG;
p->to.reg = REGARG;
print("3. %P\n", p);
}
// //MOVQ o(AX), AX
// p = pc;
// gins(AMOVQ, N, N);
// p->from.type = D_INDIR+D_AX;
// p->from.offset = o;
// p->to.type = D_AX;
// //print("3. %P\n", p);
// o = 0;
// }
// if(o != 0) {
// //ADDQ $XX, AX
// p = pc;
// gins(AADDQ, N, N);
// p->from.type = D_CONST;
// p->from.offset = o;
// if(loaded)
// p->to.type = D_AX;
// else {
// p->to.type = D_INDIR+D_SP;
// p->to.offset = 8;
// }
// //print("4. %P\n", p);
// }
f = dotlist[0].field;
//B main·*Sub_test2(SB)
if(isptr[f->type->etype])
f = f->type;
p = pc;
gins(AB, N, N);
p->to.type = D_OREG;
p->to.reg = NREG;
p->to.name = D_EXTERN;
p->to.sym = methodsym(method->sym, ptrto(f->type));
print("4. %P\n", p);
// //MOVQ AX, 8(SP)
// if(loaded) {
// p = pc;
// gins(AMOVQ, N, N);
// p->from.type = D_AX;
// p->to.type = D_INDIR+D_SP;
// p->to.offset = 8;
// //print("5. %P\n", p);
// } else {
// // TODO(rsc): obviously this is unnecessary,
// // but 6l has a bug, and it can't handle
// // JMP instructions too close to the top of
// // a new function.
// p = pc;
// gins(ANOP, N, N);
// }
// f = dotlist[0].field;
// //JMP main·*Sub_test2(SB)
// if(isptr[f->type->etype])
// f = f->type;
// p = pc;
// gins(AJMP, N, N);
// p->to.type = D_EXTERN;
// p->to.sym = methodsym(lookup(b->name), ptrto(f->type));
// //print("6. %P\n", p);
// pc->as = ARET; // overwrite AEND
pc->as = ARET; // overwrite AEND
}
void