Red Hat Bugzilla – Bug 111264
ada compiler crashes on even hello-world
Last modified: 2013-08-05 21:03:02 EDT
gcc-gnat-3.2.3-24, when building the hello-world ada source "foo.ads"
with Text_Io; use Text_Io;
procedure hello is
put ("Hello world!");
incurs a compiler SEGV.
If the kernel uses non-executable stack by default on AMD64 and doesn't honor
PT_GNU_STACK marking (only FC1+ kernel honors it AFAIK), it is a kernel bug.
Ada certainly uses trampolines, as well as several other programs.
You might want to try noexec=off noexec32=off kernel options.
The noexec=off option does indeed eliminate the SEGV. I'm now looking
into now invasive it would be to support PT_GNU_STACK for RHEL3-U2.
I've got a patch that fixes this; now under code review.
Patch slated for U2
*** Bug 115282 has been marked as a duplicate of this bug. ***
An errata has been issued which should help the problem described in this bug report.
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen
this bug report if the solution does not work for you.