888
edits
Changes
→KernelLdr_LoadKernel
rw_end_offset = kernel_map->rw_end_offset;
rw_end_offset = kernel_map->rw_end_offset;
bss_offset = kernel_map->bss_offset;
bss_offset = kernel_map->bss_offset;
ini1_end_offset = kernel_map->ini1_end_offset;
dynamic_offset = kernel_map->dynamic_offset;
dynamic_offset = kernel_map->dynamic_offset;
init_array_offset = kernel_map->init_array_offset;
init_array_offset = kernel_map->init_array_offset;
while (rw_offset & 0xFFF) { }
while (rw_offset & 0xFFF) { }
while (rw_end_offset & 0xFFF) { }
while (rw_end_offset & 0xFFF) { }
</pre>
Next, it relocates the INI1 to its appropriate load address.
<pre>
// If configured to do so, an extra 0x68000 bytes will be reserved for kernel usage.
reserved_kernel_data_size = KernelLdr_ShouldReserveAdditionalKernelData() ? 0x1790000 : 0x1728000;
// Calculate address at which to place INI1.
ini1_end_address = kernel_base + ini1_end_offset + reserved_kernel_data_size;
ini1_load_address = ini1_end_address - 0xC00000;
// Relocate INI1 if destination address isn't the input argument address
if (ini1_load_address != ini1_address) {
// Validate INI1 binary has correct magic and valid size.
INI1Header *ini = (INI1Header *)ini1_address;
if (ini->magic == MAGIC_INI1 && ini->size <= 0xC00000) {
memmove(ini1_load_address, ini1_address, ini->size); // NOTE: No ToCToU, ini1->size is cached on stack.
} else {
// Invalid INI, place invalid header at load address. This will cause Kernel Panic later.
memset(ini1_load_address, 0, sizeof(INI1Header));
}
}
</pre>
</pre>