rixxc/shared_memory_heap
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use memfd secret

Browse Source
This commit is contained in:
Aaron Kaiser
2024-05-14 13:54:39 +02:00
parent 18f1a1b9a6
commit 0200b3c913
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/bump_allocator.rs
View File

@@ -3,7 +3,7 @@ use std::{
usize, usize,
}; };
use libc::{c_char, c_void, ftruncate, memfd_create, mmap, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE}; use libc::{c_void, ftruncate, mmap, syscall, SYS_memfd_secret, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
pub(crate) const MEMFD_INITIAL_SIZE: usize = 1024 * 1024; pub(crate) const MEMFD_INITIAL_SIZE: usize = 1024 * 1024;
const MMAP_SIZE: usize = 1024 * 1024; const MMAP_SIZE: usize = 1024 * 1024;
@@ -26,7 +26,7 @@ impl BumpAllocator {
unsafe fn new() -> Self { unsafe fn new() -> Self {
assert!(MMAP_SIZE >= MEMFD_INITIAL_SIZE); assert!(MMAP_SIZE >= MEMFD_INITIAL_SIZE);
let data_fd = memfd_create("data\x00".as_ptr() as *const c_char, 0); let data_fd = syscall(SYS_memfd_secret, 0) as i32;
assert!(data_fd > 0); assert!(data_fd > 0);