From 1fb704334cbb9f737ad057ee49533277f85039cb Mon Sep 17 00:00:00 2001
From: MaxHearnden <maxoscarhearnden@gmail.com>
Date: Tue, 28 Nov 2023 00:41:22 +0000
Subject: [PATCH] add x86_64 to wrap.c

---
 sysa/wrap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/sysa/wrap.c b/sysa/wrap.c
index 0ca3094e..00346e86 100644
--- a/sysa/wrap.c
+++ b/sysa/wrap.c
@@ -17,6 +17,8 @@
 
 #include <bootstrappable.h>
 
+#if __i386__
+
 int unshare(int flags) {
   asm (
     "lea_ebx,[esp+DWORD] %4"
@@ -69,6 +71,66 @@ int chroot(char *path) {
   );
 }
 
+#elif __x86_64__
+
+int unshare(int flags) {
+  asm (
+    "lea_rdi,[rsp+DWORD] %8"
+    "mov_rdi,[rdi]"
+    "mov_rax, %272"
+    "syscall"
+  );
+}
+
+int geteuid() {
+  asm (
+    "mov_rax, %107"
+    "syscall"
+  );
+}
+
+int getegid() {
+  asm (
+    "mov_rax, %108"
+    "syscall"
+  );
+}
+
+int mount(
+  char *source, char *target, char *filesystemtype,
+  unsigned mountflags, void *data
+) {
+  asm (
+    "DEFINE mov_r8,[rsp+DWORD] 4C8D8424"
+    "DEFINE mov_r10,[rsp+DWORD] 4C8B9424"
+    "lea_rdi,[rsp+DWORD] %40"
+    "mov_rdi,[rdi]"
+    "lea_rsi,[rsp+DWORD] %32"
+    "mov_rsi,[rsi]"
+    "lea_rdx,[rsp+DWORD] %24"
+    "mov_rdx,[rdx]"
+    "mov_r10,[rsp+DWORD] %16"
+    "mov_r8,[rsp+DWORD] %8"
+    "mov_rax, %165"
+    "syscall"
+  );
+}
+
+int chroot(char *path) {
+  asm (
+    "lea_rdi,[rsp+DWORD] %8"
+    "mov_rdi,[rdi]"
+    "mov_rax, %161"
+    "syscall"
+  );
+}
+
+#else
+
+#error arch not supported
+
+#endif
+
 #else
 
 // From bootstrappable.c in M2libc