Module elf 

ELF64 loader for Strat9-OS.

Parses ELF64 headers and loads PT_LOAD segments into a user address space, then creates a kernel task that trampolines into Ring 3 via IRETQ.

Supports :

• ET_EXEC
• ET_DYN (PIE/static-PIE)
• ELF64 little-endian x86_64 binaries.

Structs

LoadedElfInfo

Result of loading an ELF image into an address space.

Constants

USER_ADDR_MAX

Maximum virtual address we accept for user-space mappings.

USER_STACK_BASE

User stack location (below the non-canonical gap).

USER_STACK_PAGES

Number of 4 KiB pages for the user stack (16 pages = 64 KiB).

USER_STACK_TOP

Top of the user stack (stack grows down).

Functions

load_and_run_elf

Load an ELF64 binary and schedule it as a Ring 3 user task.

load_and_run_elf_with_caps

Performs the load and run elf with caps operation.

load_elf_image

Load an ELF binary into the provided address space. Returns the entry point address.

load_elf_task_with_caps

Performs the load elf task with caps operation.

read_user_mapped_bytes_pub

Reads user mapped bytes pub.

write_user_mapped_bytes_pub

Writes user mapped bytes pub.

write_user_u64_pub

Writes user u64 pub.