Re: segfault on solaris10/sparc

[Riccardo Mottola]

Hi,

Wolfgang Lux wrote:
> Does it still segfault if you compile the program with "gcc -O2 config.align.c" and then 
> run "a.out"? It's about a decade ago that I have been using a Sparc machine, but I recall 
> having a similar problem where gcc was generating code with different alignment constraints 
> depending on whether optimization was turned on or not. Though in my case the problem was for 
> floating point numbers.
so it is! the version compiled with gcc -O2 does not crash.

I wonder if we can foce executing the test without opt. flags  or 
complicate so that it doesn't get optimized..

During compilation I get these warnings:
config.align.c: In function 'main':
config.align.c:13:16: warning: incompatible implicit declaration of 
built-in function 'malloc'
   char  *buf = malloc(30);
                ^
config.align.c:27:6: warning: assignment from incompatible pointer type
   sp = (short*)(v + 1);
      ^
config.align.c:28:6: warning: assignment from incompatible pointer type
   sq = (short*)(v + 2);
      ^

I think the twp sp and sq variable should be declared "short". But that 
doesn't change that we need to fool the compiler better.

R