More problems

[maydin@us.ibm.com]

I finally found the online version of the book I have.  The book is called
ESA/390 Principles of Operation.  The website that contains the entire book
is at:
http://www.s390.ibm.com/bookmgr-cgi/bookmgr.exe/BOOKS/DZ9AR006/CCONTENTS
The book is rather long, about 1000 pages.

1.  I have a few questions about the code I have received.  First, I looked
at the include statements.  The types.h file in the linux/390 is located at
/usr/include/sys/types.h along with many other places such as
/usr/include/linux/types.h, /usr/include/asm/types.h, etc.  Will just
/sys/types.h be enough or will I have to specify the full path?
2.  atypes.h is not in any of the /usr/include directories, but there is
one at usr/arla/include/.  Will I have to enter the full path or will just
atypes.h be enough?
3.   When you say the program should be compiled with the same flags arla
is compiled with, do you mean something like:
gcc -c  -DHAVE_CONFIG_H -I../../include -I. -g  -Wall -Wmissing-prototypes
-Wpointer-arith -Wbad-function-cast -Wmissing-declarations -Wnested-externs
  foo.c?
I noticed that c files are compiled like that when I ran the make, but I
did not check if ALL c files that came with arla had the same options.  So,
 is this a correct way of compiling?
I know that I will need to make an output file that I can execute, so I
will need the -o option somewhere.  But otherwise, is this correct?

Thank you all for your interest and help.
Mahir Aydin


Sent by:  lha at e.kth.se


To:   Harald Barth <haba at pdc.kth.se>
cc:   Mahir Aydin/Poughkeepsie/IBM at IBMUS, Robert Burgess/Sweden/IBM at IBMSE
Subject:  Re: More problems



Harald Barth <haba at pdc.kth.se> writes:

> Hi again,
>
> After discussing your s390 problems over a beer, Love
<lha at stacken.kth.se>,
> Robert <rbur at se.ibm.com> and I are convinced that we need to know more
> about the s390 architecture and the Linux port to be able to understand
> the problem. We (Love and Robert) will have a look at a local s390 here
> (found one under a rock :-) and see if we get any wiser.

The local S/390 seems to be out for lunch (and has been for the whole
week). So instead we have a test program for you to run, can we get the
output of it ?

Note you have to compile the program the with the same flags as the arla
programs is compiled with.

Love

#include <sys/types.h>
#include <atypes.h>

int
main (int argc, char **argv)
{
    int i;
    int32_t foo;
    char bar[100];

    printf ("sizeof(int32_t) = %d\n", sizeof(foo));

    memset (bar, 0, sizeof(bar));
    foo = 0x12345678;
    memcpy (bar, &foo, 4);
    printf ("data = 0x");
    for (i = 0 ; i < 8; i++)
     printf ("%02x", bar[i]);
    printf ("\n");
}