From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 7 Mar 2024 17:28:00 -0500
Subject: lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 lib/mlibc/sysdeps/managarm/generic/memory.cpp | 30 +++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 lib/mlibc/sysdeps/managarm/generic/memory.cpp

(limited to 'lib/mlibc/sysdeps/managarm/generic/memory.cpp')

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
+
-- 
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