From 65ba015d6c1f248d36ad01a653bc49637804b15b Mon Sep 17 00:00:00 2001 From: Jon Santmyer Date: Sun, 10 Aug 2025 15:46:33 -0400 Subject: working usermode objdir iteration --- lib/libjove/syscall/debug_putc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 lib/libjove/syscall/debug_putc.c (limited to 'lib/libjove/syscall/debug_putc.c') 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 + +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"); +} -- cgit v1.2.1