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feat(kernel): console cap gates DebugPutchar, no uart fast path; spawn start arg in a0; delegate returns slot

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This commit is contained in:
Gabriel Kaszewski
2026-10-27 14:54:36 +01:00
parent 33e1c849d1
commit 7415bab7f5
31 changed files with 290 additions and 64 deletions
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13
crates/libkos/src/syscall/process.rs
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@@ -46,18 +46,19 @@ pub fn create_process(create_cap: CapSlot) -> Option<CapSlot> {
.ok()
}
pub fn spawn_thread(entry: EntryPoint, stack: StackPointer) -> usize {
raw(SYS_SPAWN_THREAD, [entry.raw(), stack.raw(), 0, 0, 0, 0]).map_or(NONE, |r| r[1])
/// `arg` arrives in the new thread's `a0` (see `libkos::start`).
pub fn spawn_thread(entry: EntryPoint, stack: StackPointer, arg: usize) -> usize {
raw(SYS_SPAWN_THREAD, [entry.raw(), stack.raw(), arg, 0, 0, 0]).map_or(NONE, |r| r[1])
}
pub fn spawn_thread_in(process_cap: CapSlot, entry: EntryPoint, stack: StackPointer) -> usize {
pub fn spawn_thread_in(process_cap: CapSlot, entry: EntryPoint, stack: StackPointer, arg: usize) -> usize {
raw(
SYS_SPAWN_THREAD_IN,
[
process_cap.value() as usize,
entry.raw(),
stack.raw(),
0,
arg,
0,
0,
],
@@ -69,6 +70,6 @@ pub fn kill(process_cap: CapSlot) -> bool {
raw(SYS_KILL, [process_cap.value() as usize, 0, 0, 0, 0, 0]).is_ok()
}
pub fn debug_putchar(byte: u8) {
let _ = raw(SYS_DEBUG_PUTCHAR, [byte as usize, 0, 0, 0, 0, 0]);
pub fn debug_putchar(console: CapSlot, byte: u8) {
let _ = raw(SYS_DEBUG_PUTCHAR, [console.value() as usize, byte as usize, 0, 0, 0, 0]);
}