Kernel+LibC: Add a very limited sys$mremap() implementation

This syscall can currently only remap a shared file-backed mapping into
a private file-backed mapping.

1 files changed, 9 insertions, 1 deletions

diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h
index 2cc1b0ff33..e83a67b5a3 100644
--- a/Kernel/API/Syscall.h
+++ b/Kernel/API/Syscall.h
@@ -195,7 +195,8 @@ namespace Kernel {
     S(disown)                 \
     S(adjtime)                \
     S(allocate_tls)           \
-    S(prctl)
+    S(prctl)                  \
+    S(mremap)
 
 namespace Syscall {
 
@@ -256,6 +257,13 @@ struct SC_mmap_params {
     StringArgument name;
 };
 
+struct SC_mremap_params {
+    uintptr_t old_address;
+    size_t old_size;
+    size_t new_size;
+    int32_t flags;
+};
+
 struct SC_open_params {
     int dirfd;
     StringArgument path;