Experimental Physics and
Industrial Control System

"Ronald L. Sluiter" <[email protected]> · Wed, 17 Nov 2004 08:51:08 -0600

I reported a problem with the Tornado 2.2.1 supplied compiler
via the Mantis Bug Reporting mechanism; Bug ID #82.
The jest of the report is that the epicsThreadSleepQuantum() function
returns erroneous values when -O3 optimization is used.
Ron
Mark Rivers wrote:
Andrew and Ralph,
We've been using the SNS versions of PPC and 68K compilers without being
aware of the bugs that Andrew mentioned.  Are these documented somewhere
on the Web?
Thanks,
Mark

 > There are also problems with a 68K C++ compiler built from these

sources;

> in that case the issue is related to passing bool variables as

arguments

> to functions or member functions - again I haven't chased the

detail.

Plus a problem with NULL pointers being treated wrong in expressions

(after setting a pointer to NULL, comparing it to NULL in an

expression

would yield a FALSE).
Afaik this problem is appeared only in the 68k version of the original

Tornado 2.0.2 compiler and was fixed with a later patch. Anyway:

compilers built from the sources available at SNS are not showing this

bug. (That's why we rebuilt even our HP-UX based compiler from the SNS

sources.)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System