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Set relocation-model=static

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4lDO2
2023-08-12 00:57:45 +00:00
committed by Jeremy Soller
parent 652aa4f1ac
commit cbd02a8489
4 changed files with 32 additions and 30 deletions
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src/arch/x86_64/consts.rs
+29 -26
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@@ -1,32 +1,35 @@
// Because the memory map is so important to not be aliased, it is defined here, in one place
// The lower 256 PML4 entries are reserved for userspace
// Each PML4 entry references up to 512 GB of memory
// The second from the top (510) PML4 is reserved for the kernel
/// The size of a single PML4
pub const PML4_SIZE: usize = 0x0000_0080_0000_0000;
pub const PML4_MASK: usize = 0x0000_ff80_0000_0000;
// Because the memory map is so important to not be aliased, it is defined here, in one place.
//
// - The lower half (256 PML4 entries; 128 TiB) is reserved for userspace. These mappings are
// associated with _address spaces_, and change when context switching, unless the address spaces
// match.
// - The upper half is reserved for the kernel. Kernel mappings are preserved across context
// switches.
//
// Each PML4 entry references 512 GiB of virtual memory.
/// Offset of recursive paging (deprecated, but still reserved)
pub const RECURSIVE_PAGE_OFFSET: usize = (-(PML4_SIZE as isize)) as usize;
pub const RECURSIVE_PAGE_PML4: usize = (RECURSIVE_PAGE_OFFSET & PML4_MASK)/PML4_SIZE;
/// The size of a single PML4
pub const PML4_SIZE: usize = 0x0000_0080_0000_0000;
pub const PML4_MASK: usize = 0x0000_ff80_0000_0000;
/// Offset of kernel
pub const KERNEL_OFFSET: usize = RECURSIVE_PAGE_OFFSET - PML4_SIZE;
pub const KERNEL_PML4: usize = (KERNEL_OFFSET & PML4_MASK)/PML4_SIZE;
/// Offset of kernel
pub const KERNEL_MAX_SIZE: usize = 1_usize << 31;
pub const KERNEL_OFFSET: usize = KERNEL_MAX_SIZE.wrapping_neg();
pub const KERNEL_PML4: usize = (KERNEL_OFFSET & PML4_MASK)/PML4_SIZE;
/// Offset to kernel heap
pub const KERNEL_HEAP_OFFSET: usize = KERNEL_OFFSET - PML4_SIZE;
pub const KERNEL_HEAP_PML4: usize = (KERNEL_HEAP_OFFSET & PML4_MASK)/PML4_SIZE;
/// Size of kernel heap
pub const KERNEL_HEAP_SIZE: usize = 1 * 1024 * 1024; // 1 MB
/// Offset to kernel heap
pub const KERNEL_HEAP_OFFSET: usize = KERNEL_OFFSET - PML4_SIZE;
pub const KERNEL_HEAP_PML4: usize = (KERNEL_HEAP_OFFSET & PML4_MASK)/PML4_SIZE;
/// Size of kernel heap
pub const KERNEL_HEAP_SIZE: usize = 1 * 1024 * 1024; // 1 MB
/// Offset of physmap
// This needs to match RMM's PHYS_OFFSET
pub const PHYS_OFFSET: usize = 0xFFFF_8000_0000_0000;
pub const PHYS_PML4: usize = (PHYS_OFFSET & PML4_MASK)/PML4_SIZE;
/// Offset of physmap
// This needs to match RMM's PHYS_OFFSET
pub const PHYS_OFFSET: usize = 0xFFFF_8000_0000_0000;
pub const PHYS_PML4: usize = (PHYS_OFFSET & PML4_MASK)/PML4_SIZE;
/// Offset to user image
pub const USER_OFFSET: usize = 0;
/// Offset to user image
pub const USER_OFFSET: usize = 0;
/// End offset of the user image, i.e. kernel start
pub const USER_END_OFFSET: usize = 256 * PML4_SIZE;
/// End offset of the user image, i.e. kernel start
pub const USER_END_OFFSET: usize = 256 * PML4_SIZE;