From 381ef5c83393d3707cf74f40f1edc2d0404c3ee6 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Fri, 20 Oct 2017 08:33:03 +0200 Subject: confdefs: Warn about problematic ticks per second A non-integer clock ticks per second value may lead to inaccurate time format conversions. Update #3117. Update #3182. --- cpukit/sapi/include/confdefs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'cpukit/sapi/include') diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h index 3dfcf9b2d5..13e97c9487 100755 --- a/cpukit/sapi/include/confdefs.h +++ b/cpukit/sapi/include/confdefs.h @@ -2287,6 +2287,10 @@ extern rtems_initialization_tasks_table Initialization_tasks[]; RTEMS_MILLISECONDS_TO_MICROSECONDS(10) #endif + #if 1000000 % CONFIGURE_MICROSECONDS_PER_TICK != 0 + #warning "The clock ticks per second is not an integer" + #endif + #define _CONFIGURE_TICKS_PER_SECOND (1000000 / CONFIGURE_MICROSECONDS_PER_TICK) /** The configures the number of clock ticks per timeslice. */ -- cgit v1.2.3