T0b1/wasmtime
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Switch to passing the vmctx hidden argument at the beginning.

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This switches to passing the vmctx hidden argument at the beginning of
the argument list, rather than the end.
This commit is contained in:
Dan Gohman
2019-01-31 16:38:57 -08:00
parent e66f01b923
commit 4675948c2a
7 changed files with 43 additions and 27 deletions
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8
lib/runtime/src/traphandlers.rs
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@@ -91,9 +91,9 @@ fn push_jmp_buf(buf: jmp_buf) {
/// return values will be written.
#[no_mangle]
pub unsafe extern "C" fn wasmtime_call_trampoline(
vmctx: *mut VMContext,
callee: *const VMFunctionBody,
values_vec: *mut u8,
vmctx: *mut VMContext,
) -> Result<(), String> {
// Reset JMP_BUFS if the stack is unwound through this point.
let _guard = ScopeGuard::new();
@@ -106,8 +106,8 @@ pub unsafe extern "C" fn wasmtime_call_trampoline(
push_jmp_buf(buf);
// Call the function!
let func: fn(*mut u8, *mut VMContext) = mem::transmute(callee);
func(values_vec, vmctx);
let func: fn(*mut VMContext, *mut u8) = mem::transmute(callee);
func(vmctx, values_vec);
Ok(())
}
@@ -116,8 +116,8 @@ pub unsafe extern "C" fn wasmtime_call_trampoline(
/// return values.
#[no_mangle]
pub unsafe extern "C" fn wasmtime_call(
callee: *const VMFunctionBody,
vmctx: *mut VMContext,
callee: *const VMFunctionBody,
) -> Result<(), String> {
// Reset JMP_BUFS if the stack is unwound through this point.
let _guard = ScopeGuard::new();