/**
* Initializes the ring-0 driver runtime library.
*
* @returns iprt status code.
* @param fReserved Flags reserved for the future.
*/
RTR0DECL(int) RTR0Init(unsigned fReserved)
{
int rc;
uint32_t cNewUsers;
Assert(fReserved == 0);
#ifndef RT_OS_SOLARIS /* On Solaris our thread preemption information is only obtained in rtR0InitNative().*/
RT_ASSERT_PREEMPTIBLE();
#endif
/*
* The first user initializes it.
* We rely on the module loader to ensure that there are no
* initialization races should two modules share the IPRT.
*/
cNewUsers = ASMAtomicIncS32(&g_crtR0Users);
if (cNewUsers != 1)
{
if (cNewUsers > 1)
return VINF_SUCCESS;
ASMAtomicDecS32(&g_crtR0Users);
return VERR_INTERNAL_ERROR_3;
}
rc = rtR0InitNative();
if (RT_SUCCESS(rc))
{
#ifdef RTR0MEM_WITH_EF_APIS
rtR0MemEfInit();
#endif
rc = rtThreadInit();
if (RT_SUCCESS(rc))
{
#ifndef IN_GUEST /* play safe for now */
rc = rtR0MpNotificationInit();
if (RT_SUCCESS(rc))
{
rc = rtR0PowerNotificationInit();
if (RT_SUCCESS(rc))
return rc;
rtR0MpNotificationTerm();
}
#else
if (RT_SUCCESS(rc))
return rc;
#endif
rtThreadTerm();
}
#ifdef RTR0MEM_WITH_EF_APIS
rtR0MemEfTerm();
#endif
rtR0TermNative();
}
return rc;
}
static void rtR0Term(void)
{
rtThreadTerm();
#ifndef IN_GUEST /* play safe for now */
rtR0PowerNotificationTerm();
rtR0MpNotificationTerm();
#endif
#ifdef RTR0MEM_WITH_EF_APIS
rtR0MemEfTerm();
#endif
rtR0TermNative();
}
DECLHIDDEN(int) rtR0InitNative(void)
{
/*
* Create the lock group.
*/
g_pDarwinLockGroup = lck_grp_alloc_init("IPRT", LCK_GRP_ATTR_NULL);
AssertReturn(g_pDarwinLockGroup, VERR_NO_MEMORY);
/*
* Initialize the preemption hacks.
*/
int rc = rtThreadPreemptDarwinInit();
if (RT_SUCCESS(rc))
{
/*
* Try resolve kernel symbols we need but apple don't wish to give us.
*/
RTDBGKRNLINFO hKrnlInfo;
rc = RTR0DbgKrnlInfoOpen(&hKrnlInfo, 0 /*fFlags*/);
if (RT_SUCCESS(rc))
{
RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "ast_pending", (void **)&g_pfnR0DarwinAstPending);
printf("ast_pending=%p\n", g_pfnR0DarwinAstPending);
RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "cpu_interrupt", (void **)&g_pfnR0DarwinCpuInterrupt);
printf("cpu_interrupt=%p\n", g_pfnR0DarwinCpuInterrupt);
RTR0DbgKrnlInfoRelease(hKrnlInfo);
}
if (RT_FAILURE(rc))
{
printf("rtR0InitNative: warning! failed to resolve special kernel symbols\n");
rc = VINF_SUCCESS;
}
}
if (RT_FAILURE(rc))
rtR0TermNative();
return rc;
}
DECLHIDDEN(int) rtR0InitNative(void)
{
/*
* Create the lock group.
*/
g_pDarwinLockGroup = lck_grp_alloc_init("IPRT", LCK_GRP_ATTR_NULL);
AssertReturn(g_pDarwinLockGroup, VERR_NO_MEMORY);
/*
* Initialize the preemption hacks.
*/
int rc = rtThreadPreemptDarwinInit();
if (RT_SUCCESS(rc))
{
/*
* Try resolve kernel symbols we need but apple don't wish to give us.
*/
RTR0MACHKERNEL hKernel;
rc = RTR0MachKernelOpen("/mach_kernel", &hKernel);
if (RT_SUCCESS(rc))
{
RTR0MachKernelGetSymbol(hKernel, "ast_pending", (void **)&g_pfnR0DarwinAstPending);
printf("ast_pending=%p\n", g_pfnR0DarwinAstPending);
RTR0MachKernelGetSymbol(hKernel, "cpu_interrupt", (void **)&g_pfnR0DarwinCpuInterrupt);
printf("cpu_interrupt=%p\n", g_pfnR0DarwinCpuInterrupt);
RTR0MachKernelClose(hKernel);
}
if (RT_FAILURE(rc))
{
printf("rtR0InitNative: warning! failed to resolve special kernel symbols\n");
rc = VINF_SUCCESS;
}
}
if (RT_FAILURE(rc))
rtR0TermNative();
return rc;
}
