Re: egcs produces bloated code by default

[Ben Pfaff <pfaffben@pilot.msu.edu>]

Jason Gunthorpe <jgg@gpu.srv.ualberta.ca> writes:

   No, exception handling is a C++ only feature it will have no effect on C
   programs whatsoever [huge egcs bug otherwise]. We have already taken the
   size penatly for exception handling when we switched to eg++. 

I was also about to say that this exception code bloat applies only to
C++ but the results of some tests were surprising:

    blp:/raid/home/blp$ cd tmp
    blp:/raid/home/blp/tmp$ cat > foo.c
    int main (void) {}
    blp:/raid/home/blp/tmp$ gcc -v
    Reading specs from /usr/lib/gcc-lib/i486-linux/2.8.1/specs
    gcc version 2.8.1
    blp:/raid/home/blp/tmp$ gcc foo.c
    blp:/raid/home/blp/tmp$ ls -l a.out
    -rwxrwxr-x   1 blp      blp          9066 Oct 26 00:07 a.out
    blp:/raid/home/blp/tmp$ egcc -v
    Reading specs from /usr/lib/gcc-lib/i486-linux/egcs-2.91.57/specs
    gcc version egcs-2.91.57 19980901 (egcs-1.1 release)
    blp:/raid/home/blp/tmp$ egcc foo.c
    blp:/raid/home/blp/tmp$ ls -l a.out
    -rwxrwxr-x   1 blp      blp         36387 Oct 26 00:07 a.out
    blp:/raid/home/blp/tmp$

i.e., the size of a trivial program increase 4-fold from 9K to 36K!  I
find this astonishing.
-- 
SIGSIGV: Sigmentation fault (core dumped)