Fix force_use function by using original slice ptr instead of stack reference

phil-opp · phil-opp · commit 076bea979fe1 · 2022-09-25T12:35:37.000+02:00
diff --git a/api/src/lib.rs b/api/src/lib.rs
@@ -136,6 +136,6 @@ macro_rules! entry_point {
 
 #[doc(hidden)]
 pub fn __force_use(slice: &[u8]) {
-    let force_use = &slice as *const _ as usize;
+    let force_use = slice.as_ptr() as usize;
     unsafe { core::arch::asm!("add {0}, 0", in(reg) force_use, options(nomem, nostack)) };
 }

Original file line number	Diff line number	Diff line change
`@@ -136,6 +136,6 @@ macro_rules! entry_point {`
`136`	`136`
`137`	`137`	`#[doc(hidden)]`
`138`	`138`	`pub fn __force_use(slice: &[u8]) {`
`139`		`- let force_use = &slice as *const _ as usize;`
	`139`	`+ let force_use = slice.as_ptr() as usize;`
`140`	`140`	`unsafe { core::arch::asm!("add {0}, 0", in(reg) force_use, options(nomem, nostack)) };`
`141`	`141`	`}`