I'm making a stab at getting Sequent Dynix/PTX libraries running on
linux-ibcs2.
I've made a couple hacks to get it limping along in the feeblest
possible manner, but I'm a little confused as to what to do next.
So far, I've modified linux/coff.h to recognize PTX COFF binaries as
valid. I've added a PTX personality to linux/personality.h, added
entries (which are no doubt wrong) to errmap.inc and callmap.inc, and
put in an appropriate comment string in in binfmt_coff.c
So far, so good. The debug output from iBCS shows that it recognizes my
exectable, and gives it the PTX personality. In fact, I can run a
little PTX program that just spins:
main() { for(;;); }
But, if I try hello.c:
main() { printf("hello, world\n"); }
I get a segfault. 'strace hello' gives me
execve("./hello", ["./hello"], [/* 36 vars */]) = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
I'm stumped. I get a segfault running this program, too:
main() { exit(1); }
I used the SVR4 system call mapping for PTX (which isn't perfect, but
gets 'exit' right, at least), so I'm pretty sure there's something more
interesting going on then just a messed-up system call mapping.
Does anyone have any ideas what I should do next? Is there any other
information I could give that would be helpful?
