Kernel/LibC: Implement MMAP_FIXED_NOREPLACE

This is a handy thing from linux Also fix MMAP_FIXED validation and error reporting
2025-11-10 03:52:33 +02:00
parent 82c8eeb4be
commit f1d12c330e
4 changed files with 45 additions and 33 deletions
--- a/kernel/kernel/Memory/MemoryRegion.cpp
+++ b/kernel/kernel/Memory/MemoryRegion.cpp
@@ -50,6 +50,11 @@ namespace Kernel
 		return true;
 	}

+	bool MemoryRegion::is_contained_by(vaddr_t address, size_t size) const
+	{
+		return address <= m_vaddr && m_vaddr + m_size <= address + size;
+	}
+
 	BAN::ErrorOr<void> MemoryRegion::mprotect(PageTable::flags_t new_page_flags)
 	{
 		if (m_flags == new_page_flags)