From 53069ae43ea997d51d2b985a26fffdb86a59b023 Mon Sep 17 00:00:00 2001 From: Aleksa Vuckovic Date: Wed, 22 Feb 2023 18:36:16 +0100 Subject: spinlocks in printf --- kernel/src/libk/serial_stdio.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'kernel/src/libk/serial_stdio.c') diff --git a/kernel/src/libk/serial_stdio.c b/kernel/src/libk/serial_stdio.c index 951a170..8c0c527 100644 --- a/kernel/src/libk/serial_stdio.c +++ b/kernel/src/libk/serial_stdio.c @@ -5,6 +5,8 @@ #include #include +mutex_t serial_stdio_lock; + void serial_print_char(char c) { write_serial(c); @@ -43,6 +45,7 @@ void serial_printf(const char *s, ...) void serial_vprintf(const char *s, va_list list) { + lock(serial_stdio_lock); size_t count = 0; for(size_t i = 0; i < strlen(s); i++) if(s[i] == '%') count++; @@ -63,4 +66,5 @@ void serial_vprintf(const char *s, va_list list) } else serial_print_char(s[i]); } + unlock(serial_stdio_lock); } -- cgit v1.2.3