RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 09:38:11 +00:00
Code Issues Activity Actions

Kernel: Add stubs for missing x86_64 functionality

Browse source 
This adds just enough stubs to make the kernel compile on x86_64. Obviously
it won't do anything useful - in fact it won't even attempt to boot because
Multiboot doesn't support ELF64 binaries - but it gets those compiler errors
out of the way so more progress can be made getting all the missing
functionality in place.
This commit is contained in:
Gunnar Beutner 2021-06-23 21:54:41 +02:00 • committed by Andreas Kling
parent f2eb759901
commit 38fca26f54
21 changed files with 295 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Kernel/Arch/x86/common/Processor.cpp
View file

@ -485,7 +485,13 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
// to be ebp.
ProcessPagingScope paging_scope(thread.process());
auto& tss = thread.tss();
u32* stack_top = reinterpret_cast<u32*>(tss.esp);
u32* stack_top;
#if ARCH(I386)
stack_top = reinterpret_cast<u32*>(tss.esp);
#else
(void)tss;
TODO();
#endif
if (is_user_range(VirtualAddress(stack_top), sizeof(FlatPtr))) {
if (!copy_from_user(&frame_ptr, &((FlatPtr*)stack_top)[0]))
frame_ptr = 0;
@ -494,7 +500,11 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
if (!safe_memcpy(&frame_ptr, &((FlatPtr*)stack_top)[0], sizeof(FlatPtr), fault_at))
frame_ptr = 0;
}
#if ARCH(I386)
eip = tss.eip;
#else
TODO();
#endif
// TODO: We need to leave the scheduler lock here, but we also
// need to prevent the target thread from being run while
// we walk the stack