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[Yellowstone] Wireframe for moving yellowstone to rust.

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This commit is contained in:
Drew Galbraith 2024-08-17 20:19:45 -07:00
parent 0aa4a1f5f1
commit c9b484089e
24 changed files with 265 additions and 25 deletions
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15
rust/lib/mammoth/src/elf.rs
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@ -13,9 +13,7 @@ const ELF_IDENT_64BIT: u8 = 0x2;
const ELF_ENDIAN_LITTLE: u8 = 0x1;
const ELF_ENDIAN_BIG: u8 = 0x2;
const ELF_VERSION_CURRENT: u8 = 0x1;
const ELF_ABI_SYSV: u8 = 0x0;
const ELF_ABI_LINUX: u8 = 0x3;
@ -312,7 +310,10 @@ fn load_elf_program(elf_file: &[u8], vmas: &Capability) -> Result<u64, ZError> {
Ok(header.entry)
}
pub fn spawn_process_from_elf(elf_file: &[u8]) -> Result<Capability, ZError> {
pub fn spawn_process_from_elf_and_init(
elf_file: &[u8],
init_cap: Capability,
) -> Result<Capability, ZError> {
let self_cap = Capability::take_copy(unsafe { init::SELF_PROC_CAP })?;
let port_cap = syscall::port_create()?;
@ -328,8 +329,7 @@ pub fn spawn_process_from_elf(elf_file: &[u8]) -> Result<Capability, ZError> {
new_proc_cap.duplicate(Capability::PERMS_ALL)?,
)?;
port.write_u64_and_cap(crate::init::Z_INIT_SELF_VMAS, new_as_cap)?;
let yellowstone = Capability::take_copy(unsafe { crate::init::INIT_ENDPOINT })?;
port.write_u64_and_cap(crate::init::Z_INIT_ENDPOINT, yellowstone)?;
port.write_u64_and_cap(crate::init::Z_INIT_ENDPOINT, init_cap)?;
let thread_cap = syscall::thread_create(&new_proc_cap)?;
@ -337,3 +337,8 @@ pub fn spawn_process_from_elf(elf_file: &[u8]) -> Result<Capability, ZError> {
Ok(new_proc_cap)
}
pub fn spawn_process_from_elf(elf_file: &[u8]) -> Result<Capability, ZError> {
let yellowstone = Capability::take_copy(unsafe { crate::init::INIT_ENDPOINT })?;
spawn_process_from_elf_and_init(elf_file, yellowstone)
}