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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /library/std/src/sys/hermit/alloc.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/std/src/sys/hermit/alloc.rs')
-rw-r--r--library/std/src/sys/hermit/alloc.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/library/std/src/sys/hermit/alloc.rs b/library/std/src/sys/hermit/alloc.rs
new file mode 100644
index 000000000..d153914e7
--- /dev/null
+++ b/library/std/src/sys/hermit/alloc.rs
@@ -0,0 +1,31 @@
+use crate::alloc::{GlobalAlloc, Layout, System};
+use crate::ptr;
+use crate::sys::hermit::abi;
+
+#[stable(feature = "alloc_system_type", since = "1.28.0")]
+unsafe impl GlobalAlloc for System {
+ #[inline]
+ unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+ abi::malloc(layout.size(), layout.align())
+ }
+
+ unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {
+ let addr = abi::malloc(layout.size(), layout.align());
+
+ if !addr.is_null() {
+ ptr::write_bytes(addr, 0x00, layout.size());
+ }
+
+ addr
+ }
+
+ #[inline]
+ unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
+ abi::free(ptr, layout.size(), layout.align())
+ }
+
+ #[inline]
+ unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {
+ abi::realloc(ptr, layout.size(), layout.align(), new_size)
+ }
+}