Adjust user heap allocator with expanding heap functionality

1 files changed, 13 insertions, 4 deletions

diff --git a/arch/x86_64/src/context_switching/syscall/main.cpp b/arch/x86_64/src/context_switching/syscall/main.cpp
index 93fc613..996d7fb 100644
--- a/arch/x86_64/src/context_switching/syscall/main.cpp
+++ b/arch/x86_64/src/context_switching/syscall/main.cpp
@@ -2,7 +2,7 @@
 
 namespace teachos::arch::context_switching::syscall
 {
-  auto syscall(type syscall_number, arguments args) -> error
+  auto syscall(type syscall_number, arguments args) -> response
   {
     asm volatile("mov %[input], %%rax"
                  : /* no output from call */
@@ -18,9 +18,18 @@ namespace teachos::arch::context_switching::syscall
 
     asm volatile("syscall");
 
-    error error{};
-    asm volatile("mov %%rax, %[output]" : [output] "=m"(error));
-    return error;
+    error error_code{};
+    asm volatile("mov %%rax, %[output]" : [output] "=m"(error_code));
+
+    arguments values{};
+    asm volatile("mov %%rdi, %[output]" : [output] "=m"(values.arg_0));
+    asm volatile("mov %%rsi, %[output]" : [output] "=m"(values.arg_1));
+    asm volatile("mov %%rdx, %[output]" : [output] "=m"(values.arg_2));
+    asm volatile("mov %%r10, %[output]" : [output] "=m"(values.arg_3));
+    asm volatile("mov %%r8, %[output]" : [output] "=m"(values.arg_4));
+    asm volatile("mov %%r9, %[output]" : [output] "=m"(values.arg_5));
+
+    return {error_code, values};
   }
 
 }  // namespace teachos::arch::context_switching::syscall