syshelp.c_

//////////////////////////////////////////////////////////////////////
// System Helpers

//////////////////////////////////////////////////////////////////////
// no system routines to find a thread/semaphore/event by name (AFAIK)
//   we use the dump APIs to do a linear search ourselves

// extern int sceKernelGetThreadmanIdList(int, SceUID*, int, int*);

#define MAX_UIDS    200     /* overkill max number expected */

static SceUID FindEventFlag(const char* szFind)
{
    SceUID uids[MAX_UIDS];
	int count = 0;
	sceKernelGetThreadmanIdList(3/*event*/, uids, sizeof(uids), &count);
    int i;
    for (i = 0; i < count; i++)
    {
        SceUID uid = uids[i];
		SceKernelEventFlagInfo info;
	    info.size = sizeof(info);
	    int err = sceKernelReferEventFlagStatus(uid, &info);
        if (err == 0 && strcmp(info.name, szFind) == 0)
            return uid;
    }
    return 0;
}

static SceUID FindSemaphore(const char* szFind)
{
    SceUID uids[MAX_UIDS];
	int count = 0;
	sceKernelGetThreadmanIdList(2/*sema*/, uids, sizeof(uids), &count);
    int i;
    for (i = 0; i < count; i++)
    {
        SceUID uid = uids[i];
		SceKernelSemaInfo info;
	    info.size = sizeof(info);
	    int err = sceKernelReferSemaStatus(uid, &info);
        if (err == 0 && strcmp(info.name, szFind) == 0)
            return uid;
    }
    return 0;
}

//////////////////////////////////////////////////////////////////////
// dynamic binding to system entries
// you can use stubs to system entries in some cases
//  we use a direct lookup approach instead

static bool g_bFindProcError = false;

static void* FindProc(const char* szMod, const char* szLib, u32 nid)
{
    SceModule* modP = sceKernelFindModuleByName(szMod);
    if (modP == NULL)
    {
        printf("Failed to find mod '%s'\n", szMod);
		g_bFindProcError = true;
        return 0;
    }
    SceLibraryEntryTable* entP = (SceLibraryEntryTable*)modP->ent_top;
    while ((u32)entP < ((u32)modP->ent_top + modP->ent_size))
    {
        if (entP->libname != NULL && strcmp(entP->libname, szLib) == 0)
        {
            // found lib
            int i;
            int count = entP->stubcount; // NOT: + entP->vstubcount;
            u32* nidtable = (u32*)entP->entrytable;
            for (i = 0; i < count; i++)
            {
                if (nidtable[i] == nid)
                {
                    u32 procAddr = nidtable[count+i];
                    // printf("entry found: '%s' '%s' = $%x\n", szMod, szLib, (int)procAddr);
                    return (void*)procAddr;
                }
            }
            printf("Found mod '%s' and lib '%s' but not nid=$%x\n", szMod, szLib, nid);
			g_bFindProcError = true;
            return 0;
        }
        entP++;
    }
    printf("Found mod '%s' but not lib '%s'\n", szMod, szLib);
	g_bFindProcError = true;
    return 0;
}


//////////////////////////////////////////////////////////////////////