working usermode objdir iteration

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/libjove/syscall/debug_putc.c b/lib/libjove/syscall/debug_putc.c
new file mode 100644
index 0000000..2d68ee1
--- /dev/null
+++ b/lib/libjove/syscall/debug_putc.c
@@ -0,0 +1,13 @@
+#include "jove/syscall.h"
+#include "jove/jove.h"
+#include <kernel/syscall.h>
+
+void
+_syscall_debug_putc(char c)
+{
+    *((char*)_syscall_message_ptr) = c;
+    register uint64_t box  asm ("rdi") = _syscall_message_box;
+    register uint64_t call asm ("rsi") = SYSCALL_DEBUG_PUTC;
+
+    __asm__ volatile("syscall"::: "memory");
+}