From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- library/std/src/sys/hermit/alloc.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 library/std/src/sys/hermit/alloc.rs (limited to 'library/std/src/sys/hermit/alloc.rs') 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) + } +} -- cgit v1.2.3