[Simh] BUGREPORT: clock_getres()
Lyle Bickley
lbickley at bickleywest.com
Sun Apr 27 17:55:10 EDT 2008
On Saturday 26 April 2008 13:52, Alexander Voropay wrote:
> Hi!
>
> On some systems (i.e. RedHat AS 4.4) clock_getres() function resides
> in the librt library.
>
> The man clock_getres states:
>
> =========
> NOTE
> Most systems require the program be linked with the librt library
> to use these functions.
>
> AVAILABILITY
> On POSIX systems on which these functions are available, the
> symbol _POSIX_TIMERS is defined in <unistd.h> to a value greater than 0.
> The symbols _POSIX_MONOTONIC_CLOCK, _POSIX_CPUTIME, _POSIX_THREAD_CPUTIME
> indicate that CLOCK_MONOTONIC, CLOCK_PROCESS_CPUTIME_ID,
> CLOCK_THREAD_CPUTIME_ID are available. (See also .BR sysconf (3).)
> ============
>
> Could you please add "-l rt" in the makefile if _POSIX_TIMERS is defined ?
>
> I personally did q'n'dirty patch to compile SIMH on the RHAS 4.4
> -D_GNU_SOURCE -lrt
>
>
> Also, BIN directory does not exist and make does not creares it
> automatically.
I also commented on this bug recently, see:
---------------------------------------------------------------------------
> Attempting to compile SIMH for any system with release 37-2 or
> 37-3 on openSUSE or Kubuntu Linux produced the following error:
> ---------------------------------------------------------
> /home/lpb/simh/sim_timer.c:302: undefined reference to
> `clock_getres' collect2: ld returned 1 exit status
> make: *** [BIN/pdp1] Error 1
> ---------------------------------------------------------
Here's a solution - it permits different CC options for 'macos',
'linux', and others:
==================================================================
diff makefile.orig makefile
12a13
> CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm $(OS_CCDEFS) -I .
15,16c16,18
< else
< CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm $(OS_CCDEFS) -I .
---
> endif
> ifeq ($(OSTYPE),linux)
> CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm -lrt
$(OS_CCDEFS) -I .
===================================================================
I like Alexander's patch suggestion, too - maybe a bit more than mine ;-)
At any rate a couple of questions (I'm new on the list):
1) Is this the correct forum to suggest bugs and fixes?
2) Is there a "bugzilla" or similar means to log and track bugs, fixes, etc?
Cheers,
Lyle
--
Lyle Bickley
Bickley Consulting West Inc.
Mountain View, CA
http://bickleywest.com
"Black holes are where God is dividing by zero"
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