int init_signal (void)
{
DkSetExceptionHandler(&divzero_upcall, PAL_EVENT_DIVZERO, 0);
DkSetExceptionHandler(&memfault_upcall, PAL_EVENT_MEMFAULT, 0);
DkSetExceptionHandler(&illegal_upcall, PAL_EVENT_ILLEGAL, 0);
DkSetExceptionHandler(&quit_upcall, PAL_EVENT_QUIT, 0);
DkSetExceptionHandler(&suspend_upcall, PAL_EVENT_SUSPEND, 0);
DkSetExceptionHandler(&resume_upcall, PAL_EVENT_RESUME, 0);
return 0;
}
int main (int argc, char ** argv, char ** envp)
{
pal_printf("Enter Main Thread\n");
DkSetExceptionHandler(FailureHandler, PAL_EVENT_FAILURE);
PAL_HANDLE out = DkStreamOpen("foo:unknown", PAL_ACCESS_WRONLY, 0, 0, 0);
if (!out && !handled) {
pal_printf("DkStreamOpen failed\n");
return -1;
}
pal_printf("Leave Main Thread\n");
return 0;
}
int main (int argc, char ** argv, char ** envp)
{
volatile int c;
DkSetExceptionHandler(handler, PAL_EVENT_MEMFAULT, 0);
void * mem1 = (void *) DkVirtualMemoryAlloc(NULL, UNIT * 4, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
if (mem1)
pal_printf("Memory Allocation OK\n");
void * mem2 = (void *) DkVirtualMemoryAlloc(NULL, UNIT, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
if (mem2) {
c = count;
*(volatile int *) mem2 = 0;
pal_printf("(int *) %p = %d\n", mem2, *(volatile int *) mem2);
if (c == count)
pal_printf("Memory Allocation Protection (RW) OK\n");
DkVirtualMemoryProtect(mem2, UNIT, PAL_PROT_READ);
c = count;
*(volatile int *) mem2 = 0;
asm volatile("nop");
if (c == count - 1)
pal_printf("Memory Protection (R) OK\n");
DkVirtualMemoryFree(mem2, UNIT);
c = count;
*(volatile int *) mem2 = 0;
asm volatile("nop");
if (c == count - 1)
pal_printf("Memory Deallocation OK\n");
}
void * mem3 = (void *) pal_control.user_address.start;
void * mem4 = (void *) pal_control.user_address.end - UNIT;
if (mem3 >= pal_control.executable_range.start &&
mem3 < pal_control.executable_range.end)
mem3 = (void *) (((PAL_NUM) pal_control.executable_range.end + UNIT - 1) & ~(UNIT - 1));
mem3 = (void *) DkVirtualMemoryAlloc(mem3, UNIT, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
mem4 = (void *) DkVirtualMemoryAlloc(mem4, UNIT, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
if (mem3 && mem4)
pal_printf("Memory Allocation with Address OK\n");
/* total memory */
pal_printf("Total Memory: %llu\n", pal_control.mem_info.mem_total);
unsigned long before = DkMemoryAvailableQuota();
void * mem5 = (void *) DkVirtualMemoryAlloc(NULL, UNIT * 1000, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
if (mem5) {
unsigned long after = before;
for (int i = 0 ; i < 10000 ; i++) {
for (void * ptr = mem5 ; ptr < mem5 + UNIT * 1000 ; ptr += UNIT)
*(volatile int *) ptr = 0;
unsigned long quota = DkMemoryAvailableQuota();
if (quota < after)
after = quota;
}
pal_printf("Memory Qouta Before Allocation: %ld\n", before);
pal_printf("Memory Qouta After Allocation: %ld\n", after);
/* chance are some pages are evicted, so at least 80% accuracy */
if (before >= after + UNIT * 800)
pal_printf("Get Memory Available Quota OK\n");
}
return 0;
}
int main (int argc, char ** argv, char ** envp)
{
char gipc_uri[20];
int ret;
DkSetExceptionHandler(handler, PAL_EVENT_MEMFAULT);
if (argc > 1 && !memcmp(argv[1], "Child", 6)) {
/* private memory */
ret = DkStreamRead(pal_control.parent_process, 0, 20, gipc_uri,
NULL, 0);
if (ret > 0) {
PAL_HANDLE ipc1 = DkStreamOpen(gipc_uri, 0, 0, 0, 0);
if (ipc1) {
pal_printf("Join Physical Memory Store OK\n");
PAL_PTR mem_addr = 0;
PAL_NUM mem_size = UNIT;
PAL_FLG mem_prot = PAL_PROT_READ|PAL_PROT_WRITE;
ret = DkPhysicalMemoryMap(ipc1, 1, &mem_addr, &mem_size,
&mem_prot);
if (ret > 0) {
pal_printf("[Test 1] Physical Memory Map : %s\n",
(char *) mem_addr);
memcpy((void *) mem_addr, "Hello World, Bob", 20);
pal_printf("[Test 1] Receiver After Map : %s\n",
(char *) mem_addr);
}
ret = 0;
DkStreamWrite(pal_control.parent_process, 0, sizeof(int),
&ret, NULL);
DkObjectClose(ipc1);
}
}
/* private untouched memory */
ret = DkStreamRead(pal_control.parent_process, 0, 20, gipc_uri,
NULL, 0);
if (ret > 0) {
PAL_HANDLE ipc2 = DkStreamOpen(gipc_uri, 0, 0, 0, 0);
if (ipc2) {
pal_printf("Join Physical Memory Store OK\n");
PAL_PTR mem_addr = 0;
PAL_NUM mem_size = UNIT;
PAL_FLG mem_prot = PAL_PROT_READ|PAL_PROT_WRITE;
ret = DkPhysicalMemoryMap(ipc2, 1, &mem_addr, &mem_size,
&mem_prot);
if (ret > 0) {
pal_printf("[Test 2] Physical Memory Map : %s\n",
(char *) mem_addr);
memcpy((void *) mem_addr, "Hello World, Bob", 20);
pal_printf("[Test 2] Receiver After Map : %s\n",
(char *) mem_addr);
}
ret = 0;
DkStreamWrite(pal_control.parent_process, 0, sizeof(int),
&ret, NULL);
DkStreamDelete(ipc2, 0);
DkObjectClose(ipc2);
}
}
/* file-backed memory */
ret = DkStreamRead(pal_control.parent_process, 0, 20, gipc_uri,
NULL, 0);
if (ret > 0) {
PAL_HANDLE ipc3 = DkStreamOpen(gipc_uri, 0, 0, 0, 0);
if (ipc3) {
pal_printf("Join Physical Memory Store OK\n");
PAL_PTR mem_addr = 0;
PAL_NUM mem_size = UNIT;
PAL_FLG mem_prot = PAL_PROT_READ|PAL_PROT_WRITE;
ret = DkPhysicalMemoryMap(ipc3, 1, &mem_addr, &mem_size,
&mem_prot);
if (ret > 0) {
pal_printf("[Test 3] Physical Memory Map : %s\n",
(char *) mem_addr);
memcpy((void *) mem_addr, "Hello World, Bob", 20);
pal_printf("[Test 3] Receiver After Map : %s\n",
(char *) mem_addr);
}
ret = 0;
DkStreamWrite(pal_control.parent_process, 0, sizeof(int),
&ret, NULL);
DkObjectClose(ipc3);
}
}
/* file-backed memory beyond file size */
ret = DkStreamRead(pal_control.parent_process, 0, 20, gipc_uri,
NULL, 0);
if (ret > 0) {
PAL_HANDLE ipc4 = DkStreamOpen(gipc_uri, 0, 0, 0, 0);
if (ipc4) {
pal_printf("Join Physical Memory Store OK\n");
PAL_PTR mem_addr = 0;
PAL_NUM mem_size = UNIT;
PAL_FLG mem_prot = PAL_PROT_READ|PAL_PROT_WRITE;
ret = DkPhysicalMemoryMap(ipc4, 1, &mem_addr, &mem_size,
&mem_prot);
if (ret > 0) {
message = "[Test 4] Physical Memory Map : Memory Fault\n";
*(volatile int *) mem_addr;
__asm__ volatile("nop");
message = NULL;
}
ret = 0;
DkStreamWrite(pal_control.parent_process, 0, sizeof(int),
&ret, NULL);
DkObjectClose(ipc4);
}