From ddda372978f3edea1dc9c2081fb29da1b21b47be Mon Sep 17 00:00:00 2001
From: Amjad Alsharafi <26300843+Amjad50@users.noreply.github.com>
Date: Wed, 3 Apr 2024 13:53:42 +0300
Subject: [PATCH] Emerald: Added `OperationNotSupported` syscall error

This can happen mostly for Filesystems when they don't support write or creating files
---
 Cargo.lock                             | 2 +-
 library/std/src/sys/pal/emerald/mod.rs | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index e9a739564d8ab..345f6c06430fe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1212,7 +1212,7 @@ dependencies = [
 
 [[package]]
 name = "emerald_kernel_user_link"
-version = "0.2.10"
+version = "0.2.11"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-core",
diff --git a/library/std/src/sys/pal/emerald/mod.rs b/library/std/src/sys/pal/emerald/mod.rs
index 1737267516f80..275a6910982d3 100644
--- a/library/std/src/sys/pal/emerald/mod.rs
+++ b/library/std/src/sys/pal/emerald/mod.rs
@@ -63,6 +63,9 @@ fn syscall_to_io_error(e: SyscallError) -> crate::io::Error {
         SyscallError::AlreadyExists => {
             crate::io::Error::new(crate::io::ErrorKind::AlreadyExists, "Already exists")
         }
+        SyscallError::OperationNotSupported => {
+            crate::io::Error::new(crate::io::ErrorKind::Unsupported, "Not supported")
+        }
         SyscallError::InvalidArgument(arg1, arg2, arg3, arg4, arg5, arg6, arg7) => {
             let errors = [arg1, arg2, arg3, arg4, arg5, arg6, arg7];