UNLOZE/sm-ext-dhooks2
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More linux changes.

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This commit is contained in:
Dr!fter
2013-08-28 22:58:42 -04:00
parent 394f21e1a4
commit b2288d7333
2 changed files with 27 additions and 14 deletions
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vhook.h
+20 -8
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@@ -165,7 +165,7 @@ Vector *Callback_vector(DHooksCallback *dg, void **stack, size_t *argsizep);
#else
void *Callback(DHooksCallback *dg, void **stack);
float Callback_float(DHooksCallback *dg, void **stack);
Vector Callback_vector(DHooksCallback *dg, void **stack, size_t *argsizep);
Vector *Callback_vector(DHooksCallback *dg, void **stack);
#endif
bool SetupHookManager(ISmmAPI *ismm);
void CleanupHooks(IPluginContext *pContext);
@@ -176,20 +176,32 @@ SourceHook::PassInfo::PassType GetParamTypePassType(HookParamType type);
static void *GenerateThunk(ReturnType type)
{
MacroAssemblerX86 masm;
static const size_t kStackNeeded = (2) * 4; // 2 args max
static const size_t kReserve = ke::Align(kStackNeeded+8, 16)-8;
masm.push(ebp);
masm.movl(ebp, esp);
masm.lea(eax, Operand(ebp, 12));
masm.push(eax);
masm.push(Operand(ebp, 8));
masm.subl(esp, kReserve);
masm.lea(eax, Operand(ebp, 12)); // grab the incoming caller argument vector
masm.movl(Operand(esp, 1 * 4), eax); // set that as the 2nd argument
masm.lea(eax, Operand(ebp, 8)); // grab the |this|
masm.movl(Operand(esp, 0 * 4), eax); // set |this| as the 1st argument
if(type == ReturnType_Float)
{
masm.call(ExternalAddress((void *)Callback_float));
}
else if(type == ReturnType_Vector)
{
masm.call(ExternalAddress((void *)Callback_vector));
}
else
{
masm.call(ExternalAddress((void *)Callback));
masm.addl(esp, 8);
masm.pop(ebp);
}
masm.addl(esp, kReserve);
masm.pop(ebp); // restore ebp
masm.ret();
void *base = g_pSM->GetScriptingEngine()->AllocatePageMemory(masm.length());
masm.emitToExecutableMemory(base);
return base;