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#include <stdint.h>
#include <string.h>
#include <kernel/object.h>
#include <jove/jove.h>
#include <jove/object.h>
#include <jove/syscall.h>
#include <jove/arch/x86_64/object-pagemap.h>
/**This program acts as a memory and process server.*/
#define INIT_HEAP_START_BYTES 4096
__attribute__((section(".bss.heap")))
uint8_t init_heap[INIT_HEAP_START_BYTES];
size_t init_heap_start = (uintptr_t)init_heap;
__attribute__((noreturn))
static void
spin_fail(void)
{
for(;;);
}
void*
init_bumpalloc(size_t bytes)
{
void *r = (void*)init_heap_start;
init_heap_start += bytes;
return r;
}
KernelObjectTyped _logObject;
KernelObjectDirectory _untypedDirectory;
KernelObjectDirectory _processorDirectory;
KernelObjectPageMapping _pageMapping;
KernelObjectDirectory _initrd;
KernelObjectMessage _messageObject;
#define POPULATE_ROOTDIR_MEMB(memb, i) \
{ KernelObjectTyped *typed = JOVE_OBJECT_TYPED(memb); \
__rootdir.children[i] = typed; \
typed->parent = JOVE_OBJECT_TYPED(&__rootdir); \
typed->membi = i; \
if(_syscall_invoke_objdir_getmemb(&__rootdir, i, &typed->type) != 0) { \
jove_kprintf("Failed to populate objdir root member %i\n", i); \
spin_fail(); \
} \
}
static void
s_populate_rootdir(init_data_t *init_data)
{
__rootdir.typed.parent = NULL;
__rootdir.children[0] = JOVE_OBJECT_TYPED(&__rootdir);
POPULATE_ROOTDIR_MEMB(&_logObject, init_data->log_object);
POPULATE_ROOTDIR_MEMB(&_untypedDirectory, init_data->untyped_data_dir);
POPULATE_ROOTDIR_MEMB(&_processorDirectory, init_data->processor_dir);
POPULATE_ROOTDIR_MEMB(&_pageMapping, init_data->pm_object);
POPULATE_ROOTDIR_MEMB(&_initrd, init_data->initrd_dir);
POPULATE_ROOTDIR_MEMB(&_messageObject, init_data->message_object);
//Populate untyped table
for(int i = 1; i < 256; i++) {
KernelObjectUntyped untyped;
untyped.typed.parent = &_untypedDirectory;
untyped.typed.membi = i;
if(_syscall_invoke_objdir_getmemb(&_untypedDirectory, i, &untyped.typed.type) != 0) {
jove_kprintf("Failed to get member %i of untyped directory\n", i);
spin_fail();
}
if(untyped.typed.type != KO_MEMORY_UNTYPED) continue;
_untypedDirectory.children[i] = init_bumpalloc(sizeof(KernelObjectUntyped));
memcpy(_untypedDirectory.children[i], &untyped, sizeof(KernelObjectUntyped));
_syscall_invoke_untyped_size(&untyped, &untyped.bytes);
_syscall_invoke_untyped_alignment(&untyped, &untyped.alignment);
jove_kprintf("Untyped %i size %X align %X\n", i, untyped.bytes, untyped.alignment);
}
}
void
main(init_data_t *init_data)
{
libjove_init(
(uintmax_t)init_data->message_object,
(void*)init_data->message_object_address);
jove_kprintf("Hello, Userland!\n");
s_populate_rootdir(init_data);
for(;;);
}
__attribute__((section(".text.start")))
__attribute__((naked))
void
_start(void)
{
__asm__ volatile("\
popq %%rdi; \
jmp main"::);
}
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