/* bbvars - emit definition for basic block counting data */
static void bbvars(Symbol yylink) {
int i, j, n = npoints;
Value v;
struct map** mp;
Symbol coords, files, *p;
if (!YYcounts && !yylink)
return;
if (YYcounts) {
if (n <= 0)
n = 1;
YYcounts->type = array(unsignedtype, n, 0);
defglobal(YYcounts, BSS);
}
files = genident(STATIC, array(charptype, 1, 0), GLOBAL);
defglobal(files, LIT);
for (p = ltov(&filelist, PERM); *p; p++)
defpointer((*p)->u.c.loc);
defpointer(NULL);
coords = genident(STATIC, array(unsignedtype, n, 0), GLOBAL);
defglobal(coords, LIT);
for (i = n, mp = ltov(&maplist, PERM); *mp; i -= (*mp)->size, mp++)
for (j = 0; j < (*mp)->size; j++)
(*IR->defconst)(U, unsignedtype->size, (v.u = (*mp)->u[j].coord, v));
if (i > 0)
(*IR->space)(i * coords->type->type->size);
defpointer(NULL);
defglobal(yylink, DATA);
defpointer(NULL);
(*IR->defconst)(U, unsignedtype->size, (v.u = n, v));
defpointer(YYcounts);
defpointer(coords);
defpointer(files);
defpointer(funclist);
}
/* stabend - emits the symbol table */
static void stabend(Coordinate *cp, Symbol symroot, Coordinate *cpp[], Symbol sp[], Symbol *ignore) {
Symbol addresses;
int naddresses, nmodule;
{ /* annotate top-level symbols */
Symbol p;
for (p = symroot; p != NULL; p = up(p->up))
symboluid(p);
pickle->globals = symboluid(symroot);
}
{ /* emit addresses of top-level and static symbols */
int i, lc = 0, count = Seq_length(statics);
addresses = genident(STATIC, array(voidptype, 1, 0), GLOBAL);
comment("addresses:\n");
defglobal(addresses, LIT);
for (i = 0; i < count; i++) {
Symbol p = Seq_get(statics, i);
lc = emit_value(lc, voidptype, p);
}
lc = pad(maxalign, lc);
naddresses = lc;
Seq_free(&statics);
}
{ /* emit bp count as an alias for the module */
Symbol spoints = mksymbol(AUTO,
stringf("_spoints_V%x_%d", uname, Seq_length(pickle->spoints)),
array(unsignedtype, 0, 0));
spoints->generated = 1;
defglobal(spoints, LIT);
}
{ /* emit module */
int lc;
comment("module:\n");
defglobal(module, LIT);
lc = emit_value( 0, unsignedtype, (unsigned long)uname);
lc = emit_value(lc, voidptype, addresses);
lc = pad(maxalign, lc);
nmodule = lc;
}
Seq_free(&locals);
#define printit(x) fprintf(stderr, "%7d " #x "\n", n##x); total += n##x
{
int total = 0;
printit(addresses);
printit(module);
fprintf(stderr, "%7d bytes total\n", total);
}
#undef printit
{ /* complete and write symbol-table pickle */
FILE *f = fopen(stringf("%d.pickle", uname), "wb");
sym_write_module(pickle, f);
fclose(f);
}
}
int main()
{
Value *result;
init();
// List manipulation.
defnative(mksym("CONS"), native_cons);
defnative(mksym("CAR"), native_car);
defnative(mksym("CDR"), native_cdr);
// Arithmetic.
defnative(mksym("PLUS"), native_plus);
defnative(mksym("MINUS"), native_minus);
defnative(mksym("MUL"), native_mul);
defnative(mksym("DIV"), native_div);
// Miscellaneous.
defnative(mksym("EVAL"), native_eval);
defglobal(mksym("NIL"), LISP_NIL);
while (!feof(stdin)) {
setjmp(toplevel_escape);
printf("> ");
result = eval(lread(), global_env);
printf("\n");
lwrite(result);
printf("\n");
}
return 0;
}
Value *eval_define(Value *form, Value *env)
{
Value *name = CADR(form);
Value *value = eval(CADDR(form), env);
defglobal(name, value);
return name;
}
/* bbcall - build tree to set _callsite at call site *cp, emit call site data */
static void bbcall(Symbol yycounts, Coordinate* cp, Tree* e) {
static Symbol caller;
Value v;
union coordinate u;
Symbol p = genident(STATIC, array(voidptype, 0, 0), GLOBAL);
Tree t = *e;
defglobal(p, LIT);
defpointer(cp->file ? mkstr(cp->file)->u.c.loc : (Symbol)0);
defpointer(mkstr(cfunc->name)->u.c.loc);
if (IR->little_endian) {
u.le.x = cp->x;
u.le.y = cp->y;
} else {
u.be.x = cp->x;
u.be.y = cp->y;
}
(*IR->defconst)(U, unsignedtype->size, (v.u = u.coord, v));
if (caller == 0) {
caller = mksymbol(EXTERN, "_caller", ptr(voidptype));
caller->defined = 0;
}
if (generic((*e)->op) != CALL)
t = (*e)->kids[0];
assert(generic(t->op) == CALL);
t = tree(t->op, t->type,
tree(RIGHT, t->kids[0]->type,
t->kids[0],
tree(RIGHT, t->kids[0]->type, asgn(caller, idtree(p)), t->kids[0])),
t->kids[1]);
if (generic((*e)->op) != CALL)
t = tree((*e)->op, (*e)->type, t, (*e)->kids[1]);
*e = t;
}
/* bbfunc - emit function name and src coordinates */
static void bbfunc(Symbol yylink, Symbol f) {
Value v;
union coordinate u;
defglobal(afunc, DATA);
defpointer(funclist);
defpointer(NULL);
defpointer(mkstr(f->name)->u.c.loc);
if (IR->little_endian) {
u.le.x = f->u.f.pt.x;
u.le.y = f->u.f.pt.y;
u.le.index = bbfile(f->u.f.pt.file);
} else {
u.be.x = f->u.f.pt.x;
u.be.y = f->u.f.pt.y;
u.be.index = bbfile(f->u.f.pt.file);
}
(*IR->defconst)(U, unsignedtype->size, (v.u = u.coord, v));
funclist = afunc;
}
/* tracecall - generate code to trace entry to f */
static void tracecall(Symbol printer, Symbol f, void *ignore) {
int i;
Symbol counter = genident(STATIC, inttype, GLOBAL);
defglobal(counter, BSS);
(*IR->space)(counter->type->size);
frameno = genident(AUTO, inttype, level);
addlocal(frameno);
appendstr(f->name); appendstr("#");
tracevalue(asgn(frameno, incr(INCR, idtree(counter), consttree(1, inttype))), 0);
appendstr("(");
for (i = 0; f->u.f.callee[i]; i++) {
if (i)
appendstr(",");
appendstr(f->u.f.callee[i]->name); appendstr("=");
tracevalue(idtree(f->u.f.callee[i]), 0);
}
if (variadic(f->type))
appendstr(",...");
appendstr(") called\n");
tracefinis(printer);
}
void defnative(Value *name, Value* (*fn)(Value *))
{
defglobal(name, mknative(fn));
}
T eval_defun(T form, Environment env) {
Object name = CADR(form);
Object value = mklambda(CADDR(form), CADDDR(form), env);
defglobal(name, value);
return name;
}
