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#include "stdafx.h"
#include "Code/Binary.h"
#include "Code/Listing.h"
#include "Code/Reference.h"
using namespace code;
static Int fnA(Int v) {
return v + 10;
}
static Int fnB(Int v) {
return v + 20;
}
// Basic test of references:
BEGIN_TEST(RefTest, Code) {
Engine &e = gEngine();
Arena *arena = code::arena(e);
RefSource *fn = new (e) StrRefSource(S("fnA/B"));
fn->setPtr(address(&fnA));
Listing *l = new (e) Listing();
Var p = l->createIntParam();
*l << prolog();
*l << fnParam(intDesc(e), p);
*l << fnCall(Ref(fn), false, intDesc(e), eax);
*l << add(eax, intConst(5));
l->result = intDesc(e);
*l << fnRet(eax);
Binary *b = new (e) Binary(arena, l);
typedef Int (*Fn)(Int);
Fn f = (Fn)b->address();
CHECK_EQ((*f)(10), 25);
fn->setPtr(address(&fnB));
CHECK_EQ((*f)(10), 35);
} END_TEST
static Int tenFn() {
return 10;
}
static Int addFn(Int a, Int b) {
return a + b;
}
// More advanced replacement test.
BEGIN_TEST(ReplaceTest, Code) {
Engine &e = gEngine();
Arena *arena = code::arena(e);
Ref tenFun = arena->external(S("tenFn"), address(&tenFn));
Ref addFun = arena->external(S("addFn"), address(&addFn));
Listing *l = new (e) Listing();
*l << prolog();
*l << fnCall(tenFun, false, intDesc(e), eax);
l->result = intDesc(e);
*l << fnRet(eax);
Binary *middleBlob = new (e) Binary(arena, l);
RefSource *middle = new (e) StrRefSource(S("middle"));
middle->set(middleBlob);
l = new (e) Listing();
*l << prolog();
*l << fnCall(Ref(middle), false, intDesc(e), eax);
l->result = intDesc(e);
*l << fnRet(eax);
Binary *b = new (e) Binary(arena, l);
typedef Int (*Fn)();
Fn f = (Fn)b->address();
CHECK_EQ((*f)(), 10);
// Now, replace 'middle'!
l = new (e) Listing();
*l << prolog();
*l << fnParam(intDesc(e), intConst(128));
*l << fnParam(intDesc(e), intConst(20));
*l << fnCall(addFun, false, intDesc(e), eax);
l->result = intDesc(e);
*l << fnRet(eax);
middle->set(new (e) Binary(arena, l));
CHECK_EQ((*f)(), 148);
} END_TEST
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