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wip: got result value being passed correctly

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This commit is contained in:
Matthew LeVan 2024-01-23 16:03:33 -05:00
parent 4ff53a1845
commit 140d02cd55
3 changed files with 14 additions and 15 deletions
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19
rust/ares/src/interpreter.rs
View File

@ -421,9 +421,9 @@ impl<'closure> CCallback<'closure> {
{
let cb: &mut F = user_data.cast::<F>().as_mut().unwrap();
let mut v = (*cb)();
eprint!("ares: v: {:?}\r\n", v);
eprint!("call_closure: v: {:?}\r\n", v);
let v_ptr = &mut v as *mut _ as *mut c_void;
eprint!("ares: v_ptr: {:p}\r\n", v_ptr);
eprint!("call_closure: v_ptr: {:p}\r\n", v_ptr);
v_ptr
}
}
@ -447,10 +447,9 @@ pub fn call_with_guard<F: FnMut() -> Result>(
) -> Result {
let c = CCallback::new(f);
let mut result: Result = Ok(D(0));
let result_ptr = &mut result as *mut _ as *mut c_void;
let result_ptr_ptr = result_ptr as *mut *mut c_void;
eprint!("ares: result_ptr_ptr: {:p}\r\n", result_ptr_ptr);
let res_ptr = &mut result as *mut _ as *mut c_void;
let res_ptr_ptr = &res_ptr as *const *mut c_void;
eprint!("call_with_guard: before res_ptr: {:p}\r\n", res_ptr);
unsafe {
let err = guard(
@ -458,15 +457,16 @@ pub fn call_with_guard<F: FnMut() -> Result>(
c.user_data as *mut c_void,
stack,
alloc,
result_ptr_ptr,
res_ptr_ptr,
);
eprint!("ares: result_ptr: {:p}\r\n", result_ptr);
eprint!("call_with_guard: after res_ptr: {:p}\r\n", res_ptr);
if let Ok(err) = GuardError::try_from(err) {
match err {
GuardError::GuardSound => {
eprint!("ares: result: {:?}\n", result);
let result = *(res_ptr as *mut Result);
eprint!("call_with_guard: result: {:?}\r\n", result);
return result;
}
GuardError::GuardArmor => {
@ -1076,7 +1076,6 @@ pub fn interpret(context: &mut Context, mut subject: Noun, formula: Noun) -> Res
})
});
eprint!("nock: {:?}", nock);
match nock {
Ok(res) => Ok(res),
Err(err) => Err(exit(context, &snapshot, virtual_frame, err)),

8
rust/ares_guard/c-src/guard.c
View File

@ -112,7 +112,7 @@ guard_err guard(
void *user_data,
void *const *stack_pp,
void *const *alloc_pp,
void **ret
void *const *ret
)
{
stack = (uint64_t**) stack_pp;
@ -124,7 +124,6 @@ guard_err guard(
fprintf(stderr, "guard: stack pointer at %p\r\n", (void *) *stack);
fprintf(stderr, "guard: alloc pointer at %p\r\n", (void *) *alloc);
fprintf(stderr, "guard: ret pointer at %p\r\n", (void *) ret);
fprintf(stderr, "guard: res pointer at %p\r\n", (void *) *ret);
if (guard_p == 0) {
fprintf(stderr, "guard: installing guard page\r\n");
@ -154,8 +153,9 @@ guard_err guard(
}
}
fprintf(stderr, "guard: assigning ret to %p\r\n", result);
*ret = result;
fprintf(stderr, "guard: assigning *ret to %p\r\n", result);
*(void **)ret = result;
fprintf(stderr, "guard: assigned *ret to %p\r\n", *ret);
if (mprotect(guard_p, GD_PAGESIZE, PROT_READ | PROT_WRITE) == -1) {
err = guard_armor;

2
rust/ares_guard/c-src/guard.h
View File

@ -45,7 +45,7 @@ guard_err guard(
void *user_data,
void *const *stack_pp,
void *const *alloc_pp,
void **ret
void *const *ret
);