From 51a80930a9bc25fae0728994cab1e0df3b63ef48 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Tue, 27 Apr 2021 23:01:51 +0200
Subject: Huge compositor, timer and yielding improvements

---
 libs/libc/crt/crt0.c | 6 +++---
 libs/libc/inc/sys.h  | 9 +++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'libs/libc')

diff --git a/libs/libc/crt/crt0.c b/libs/libc/crt/crt0.c
index 3ab7ed4..9e41ae2 100644
--- a/libs/libc/crt/crt0.c
+++ b/libs/libc/crt/crt0.c
@@ -15,9 +15,9 @@ int main(int, char **);
 int _start(int argc, char **argv);
 int _start(int argc, char **argv)
 {
-	u32 stamp = 0;
-	assert(io_read(IO_TIMER, &stamp, 0, sizeof(stamp)) == sizeof(stamp) && stamp);
-	srand(stamp);
+	struct timer timer = { 0 };
+	assert(io_read(IO_TIMER, &timer, 0, sizeof(timer)) == sizeof(timer));
+	srand(timer.rtc + timer.time);
 	__stack_chk_guard = rand();
 
 	exit(main(argc, argv));
diff --git a/libs/libc/inc/sys.h b/libs/libc/inc/sys.h
index f65e020..7d81f33 100644
--- a/libs/libc/inc/sys.h
+++ b/libs/libc/inc/sys.h
@@ -75,6 +75,15 @@ struct event_mouse {
 	} but;
 };
 
+struct timer {
+	u32 rtc;
+	struct {
+		u32 user;
+		u32 kernel;
+	} ticks;
+	u32 time;
+};
+
 struct stat {
 	u32 dev_id;
 	u32 mode;
-- 
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