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Fix write to mmap-min-addr

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This commit is contained in:
4lDO2
2022-07-26 21:05:32 +02:00
parent 985b2a59a9
commit 13cbac293b
1 changed files with 4 additions and 2 deletions
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src/platform/redox/redox-exec/src/lib.rs
+4 -2
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@@ -228,8 +228,10 @@ where
let _ = syscall::write(*name_fd, interp_override.as_ref().map_or(path, |o| &o.name));
}
if interp_override.is_some() {
let mmap_min_fd = FdGuard::new(syscall::dup(*open_via_dup, b"mmap-min-addr")?);
let _ = syscall::write(*mmap_min_fd, &usize::to_ne_bytes(tree.iter().rev().nth(1).map_or(0, |(off, len)| *off + *len)));
let mmap_min_fd = FdGuard::new(syscall::dup(*grants_fd, b"mmap-min-addr")?);
let last_addr = tree.iter().rev().nth(1).map_or(0, |(off, len)| *off + *len);
let aligned_last_addr = (last_addr + PAGE_SIZE - 1) / PAGE_SIZE * PAGE_SIZE;
let _ = syscall::write(*mmap_min_fd, &usize::to_ne_bytes(aligned_last_addr));
}
let addrspace_selection_fd = FdGuard::new(syscall::dup(*open_via_dup, b"current-addrspace")?);