Very Computer

1. Does Shared Text pages are writable ?

Hi!!

Does shared text pages are writable ? instead of copy-on-write,  in
Solaris ?

The reason i am asking this is, if i have two programs in same
directory.

one.c

main()
{
   for(;;)
     printf("%d\n",1);

i compile above program as cc one.c, it generates a.out. I run it....

form another window, i compile following program(In same directory)

two.c

main()
{
   for(;;)
     printf("%d\n",2);

as cc two.c. When i compile two.c it also creates a.out in same
directory.
That is why SOMETIMES (Not always) the one.c which is running in
previous window gives Bus error. But sometimes automatically it starts
printing 2's without giving SIGBUS in first window. So this gives me
the impression that when compiler tries to write image into a.out
for secondtime (two.c), it finds a.out pages  into memory running, so it

simply writes into those pages.

Sunil.

--
"it is not the style of clothes one wears, neither the kind of
automobile one drives, nor the amount of money one has in the
bank, that counts. These mean nothing. It is simply service that
measures success."
                  Dr. George Washington Carver.

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