From 7ec221c36dd37130bc91442762c27b8d152f1cef Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Wed, 19 Oct 2022 17:50:09 +0200
Subject: [PATCH] libc: Move __luna_syscall* declarations to asm

---
 libs/libc/src/luna/syscall.asm | 50 ++++++++++++++++++++++++++++++++++
 libs/libc/src/luna/syscall.c   | 48 --------------------------------
 2 files changed, 50 insertions(+), 48 deletions(-)
 create mode 100644 libs/libc/src/luna/syscall.asm
 delete mode 100644 libs/libc/src/luna/syscall.c

diff --git a/libs/libc/src/luna/syscall.asm b/libs/libc/src/luna/syscall.asm
new file mode 100644
index 00000000..b6c1797c
--- /dev/null
+++ b/libs/libc/src/luna/syscall.asm
@@ -0,0 +1,50 @@
+global __luna_syscall0
+__luna_syscall0:
+    mov rax, rdi
+    int 0x42
+    ret
+
+global __luna_syscall1
+__luna_syscall1:
+    mov rax, rdi
+    mov rdi, rsi
+    int 0x42
+    ret
+
+global __luna_syscall2
+__luna_syscall2:
+    mov rax, rdi
+    mov rdi, rsi
+    mov rsi, rdx
+    int 0x42
+    ret
+
+global __luna_syscall3
+__luna_syscall3:
+    mov rax, rdi
+    mov rdi, rsi
+    mov rsi, rdx
+    mov rdx, rcx
+    int 0x42
+    ret
+
+global __luna_syscall4
+__luna_syscall4:
+    mov rax, rdi
+    mov rdi, rsi
+    mov rsi, rdx
+    mov rdx, rcx
+    mov r10, r8
+    int 0x42
+    ret
+
+global __luna_syscall5
+__luna_syscall5:
+    mov rax, rdi
+    mov rdi, rsi
+    mov rsi, rdx
+    mov rdx, rcx
+    mov r10, r8
+    mov r8, r9
+    int 0x42
+    ret
\ No newline at end of file
diff --git a/libs/libc/src/luna/syscall.c b/libs/libc/src/luna/syscall.c
deleted file mode 100644
index 011c3ea7..00000000
--- a/libs/libc/src/luna/syscall.c
+++ /dev/null
@@ -1,48 +0,0 @@
-#include <luna/syscall.h>
-
-long int __luna_syscall0(long int sys_num)
-{
-    long int result;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num));
-    return result;
-}
-
-long int __luna_syscall1(long int sys_num, unsigned long int arg0)
-{
-    long int result;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num), "D"(arg0));
-    return result;
-}
-
-long int __luna_syscall2(long int sys_num, unsigned long int arg0, unsigned long int arg1)
-{
-    long int result;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num), "D"(arg0), "S"(arg1));
-    return result;
-}
-
-long int __luna_syscall3(long int sys_num, unsigned long int arg0, unsigned long int arg1, unsigned long int arg2)
-{
-    long int result;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num), "D"(arg0), "S"(arg1), "d"(arg2));
-    return result;
-}
-
-long int __luna_syscall4(long int sys_num, unsigned long int arg0, unsigned long int arg1, unsigned long int arg2,
-                         unsigned long int arg3)
-{
-    long int result;
-    register unsigned long int value0 asm("r10") = arg3;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num), "D"(arg0), "S"(arg1), "d"(arg2), "r"(value0));
-    return result;
-}
-
-long int __luna_syscall5(long int sys_num, unsigned long int arg0, unsigned long int arg1, unsigned long int arg2,
-                         unsigned long int arg3, unsigned long int arg4)
-{
-    long int result;
-    register unsigned long int value0 asm("r10") = arg3;
-    register unsigned long int value1 asm("r8") = arg4;
-    asm volatile("int $0x42" : "=a"(result) : "a"(sys_num), "D"(arg0), "S"(arg1), "d"(arg2), "r"(value0), "r"(value1));
-    return result;
-}
\ No newline at end of file