lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/lib/mlibc/sysdeps/managarm/generic/memory.cpp b/lib/mlibc/sysdeps/managarm/generic/memory.cpp
new file mode 100644
index 0000000..91e47af
--- /dev/null
+++ b/lib/mlibc/sysdeps/managarm/generic/memory.cpp
@@ -0,0 +1,30 @@
+
+#include <string.h>
+
+#include <bits/ensure.h>
+#include <mlibc/allocator.hpp>
+#include <mlibc/all-sysdeps.hpp>
+#include <protocols/posix/supercalls.hpp>
+
+#include <hel.h>
+#include <hel-syscalls.h>
+
+namespace mlibc {
+
+int sys_anon_allocate(size_t size, void **pointer) {
+	// This implementation is inherently signal-safe.
+	__ensure(!(size & 0xFFF));
+	HelWord out;
+	HEL_CHECK(helSyscall1_1(kHelCallSuper + posix::superAnonAllocate, size, &out));
+	*pointer = reinterpret_cast<void *>(out);
+	return 0;
+}
+
+int sys_anon_free(void *pointer, size_t size) {
+	// This implementation is inherently signal-safe.
+	HEL_CHECK(helSyscall2(kHelCallSuper + posix::superAnonDeallocate, (HelWord)pointer, size));
+	return 0;
+}
+
+} //namespace mlibc
+