add patch series

1 files changed, 70 insertions, 0 deletions

diff --git a/debian/patches/clock_boottime0001-include-provide-time-value-substraction.patch b/debian/patches/clock_boottime0001-include-provide-time-value-substraction.patch
new file mode 100644
index 0000000..f65ae27
--- /dev/null
+++ b/debian/patches/clock_boottime0001-include-provide-time-value-substraction.patch
@@ -0,0 +1,70 @@
+From bb23879791cf015f17cb50b6443bac44b1cfbc72 Mon Sep 17 00:00:00 2001
+From: Justus Winter <4winter@informatik.uni-hamburg.de>
+Date: Sat, 25 Jul 2015 20:04:27 +0200
+Subject: [PATCH gnumach 1/2] include: provide time-value substraction
+
+* include/mach/time_value.h (time_value_assert): New macro to assert
+that the given value is well-formed.
+(time_value_add_usec): Use the new macro.
+(time_value_sub_usec): New macro.
+(time_value_add): Use `time_value_add_usec'.
+(time_value_sub_usec): New macro.
+---
+ include/mach/time_value.h | 31 ++++++++++++++++++++++++-------
+ 1 file changed, 24 insertions(+), 7 deletions(-)
+
+diff --git a/include/mach/time_value.h b/include/mach/time_value.h
+index 2a2f091..61be581 100644
+--- a/include/mach/time_value.h
++++ b/include/mach/time_value.h
+@@ -45,23 +45,40 @@ typedef	struct time_value	time_value_t;
+  */
+ #define	TIME_MICROS_MAX	(1000000)
+ 
++#define time_value_assert(val)			\
++  assert(0 <= (val)->microseconds && (val)->microseconds < TIME_MICROS_MAX);
++
+ #define	time_value_add_usec(val, micros)	{	\
++	time_value_assert(val);				\
+ 	if (((val)->microseconds += (micros))		\
+ 		>= TIME_MICROS_MAX) {			\
+ 	    (val)->microseconds -= TIME_MICROS_MAX;	\
+ 	    (val)->seconds++;				\
+ 	}						\
++	time_value_assert(val);				\
+ }
+ 
+-#define	time_value_add(result, addend)		{		\
+-	(result)->microseconds += (addend)->microseconds;	\
+-	(result)->seconds += (addend)->seconds;			\
+-	if ((result)->microseconds >= TIME_MICROS_MAX) {	\
+-	    (result)->microseconds -= TIME_MICROS_MAX;		\
+-	    (result)->seconds++;				\
+-	}							\
++#define	time_value_sub_usec(val, micros)	{	\
++	time_value_assert(val);				\
++	if (((val)->microseconds -= (micros)) < 0) {	\
++	    (val)->microseconds += TIME_MICROS_MAX;	\
++	    (val)->seconds--;				\
++	}						\
++	time_value_assert(val);				\
+ }
+ 
++#define	time_value_add(result, addend) {			\
++    time_value_assert(addend);					\
++    (result)->seconds += (addend)->seconds;			\
++    time_value_add_usec(result, (addend)->microseconds);	\
++  }
++
++#define	time_value_sub(result, subtrahend) {			\
++    time_value_assert(subtrahend);				\
++    (result)->seconds -= (subtrahend)->seconds;			\
++    time_value_sub_usec(result, (subtrahend)->microseconds);	\
++  }
++
+ /*
+  *	Time value available through the mapped-time interface.
+  *	Read this mapped value with
+-- 
+2.1.4
+