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Rename executable to already_protected

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This commit is contained in:
Michael Chesser
2021-10-22 09:38:08 +10:30
committed by Anton Kirilov
parent 61ecccf306
commit da51fae4c3
1 changed files with 9 additions and 9 deletions
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18
cranelift/jit/src/memory.rs
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@@ -109,7 +109,7 @@ impl Drop for PtrLen {
/// program's life.
pub(crate) struct Memory {
allocations: Vec<PtrLen>,
executable: usize,
already_protected: usize,
current: PtrLen,
position: usize,
}
@@ -118,7 +118,7 @@ impl Memory {
pub(crate) fn new() -> Self {
Self {
allocations: Vec::new(),
executable: 0,
already_protected: 0,
current: PtrLen::new(),
position: 0,
}
@@ -158,7 +158,7 @@ impl Memory {
#[cfg(feature = "selinux-fix")]
{
for &PtrLen { ref map, ptr, len } in &self.allocations[self.executable..] {
for &PtrLen { ref map, ptr, len } in &self.allocations[self.already_protected..] {
if len != 0 && map.is_some() {
unsafe {
region::protect(ptr, len, region::Protection::READ_EXECUTE)
@@ -170,7 +170,7 @@ impl Memory {
#[cfg(not(feature = "selinux-fix"))]
{
for &PtrLen { ptr, len } in &self.allocations[self.executable..] {
for &PtrLen { ptr, len } in &self.allocations[self.already_protected..] {
if len != 0 {
unsafe {
region::protect(ptr, len, region::Protection::READ_EXECUTE)
@@ -180,7 +180,7 @@ impl Memory {
}
}
self.executable = self.allocations.len();
self.already_protected = self.allocations.len();
}
/// Set all memory allocated in this `Memory` up to now as readonly.
@@ -189,7 +189,7 @@ impl Memory {
#[cfg(feature = "selinux-fix")]
{
for &PtrLen { ref map, ptr, len } in &self.allocations[self.executable..] {
for &PtrLen { ref map, ptr, len } in &self.allocations[self.already_protected..] {
if len != 0 && map.is_some() {
unsafe {
region::protect(ptr, len, region::Protection::READ)
@@ -201,7 +201,7 @@ impl Memory {
#[cfg(not(feature = "selinux-fix"))]
{
for &PtrLen { ptr, len } in &self.allocations[self.executable..] {
for &PtrLen { ptr, len } in &self.allocations[self.already_protected..] {
if len != 0 {
unsafe {
region::protect(ptr, len, region::Protection::READ)
@@ -211,14 +211,14 @@ impl Memory {
}
}
self.executable = self.allocations.len();
self.already_protected = self.allocations.len();
}
/// Frees all allocated memory regions that would be leaked otherwise.
/// Likely to invalidate existing function pointers, causing unsafety.
pub(crate) unsafe fn free_memory(&mut self) {
self.allocations.clear();
self.executable = 0;
self.already_protected = 0;
}
}