Add support for fflush and close syscalls

2025-04-27 02:48:55 -04:00
parent f07d793e6c
commit adfdaa27f7
5 changed files with 84 additions and 0 deletions
--- a/arch/aarch64.c
+++ b/arch/aarch64.c
@@ -99,4 +99,32 @@ int32_t openat(int32_t fd, const char* filename, uint32_t flags, uint32_t mode)
  return (int32_t)rtn;
 }

+int close(unsigned int fd){
+  long int rtn;
+  asm ( 
+    "mov x0, %1\n"
+    "mov x8, #57\n"
+    "svc #0\n"
+    "mov %0, x0\n"
+    : "=r"(rtn)
+    : "r" ((long)fd)
+    : "x0", "x8"
+  );
+  return (int)rtn;
+}
+
+int fsync(unsigned int fd){
+  long int rtn;
+  asm ( 
+    "mov x0, %1\n"
+    "mov x8, #82\n"
+    "svc #0\n"
+    "mov %0, x0\n"
+    : "=r"(rtn)
+    : "r" ((long)fd)
+    : "x0", "x8"
+  );
+  return (int)rtn;
+}
+
 #endif