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Date:      Fri, 10 Dec 2021 07:28:25 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 260303] lang/sdcc: seg fault during build (ASLR fallout)
Message-ID:  <bug-260303-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260303

            Bug ID: 260303
           Summary: lang/sdcc: seg fault during build (ASLR fallout)
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: darius@dons.net.au

I got a notice from a port builder it was crashing and reproduced the probl=
em
in a VM.

It crashes at:
   ../../bin/sdcc -I../../device/include -I../../device/include/mcs51 -mds3=
90
--nostdinc --std-c11 -c _schar2fs.c -o ds390/_schar2fs.rel

It appears to be caused by ASLR - with it disabled via proccontrol the above
command runs reliably all the time, without it crashes ~90% of the time.

I had a look at the core dumb but it seems quite uninformative:
[freebsd14 7:06] /usr/ports/lang/sdcc/work/sdcc-4.0.0/device/lib >sudo gdb
../../bin/sdcc sdcc.core
GNU gdb (GDB) 11.1 [GDB v11.1 for FreeBSD]
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.htm=
l>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
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Type "show configuration" for configuration details.
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Reading symbols from ../../bin/sdcc...
[New LWP 100122]
Core was generated by `../../bin/sdcc -I../../device/include
-I../../device/include/mcs51 -mds390 --nos'.
Program terminated with signal SIGSEGV, Segmentation fault.
Invalid permissions for mapped object.
#0  0x0000000804e3fbc0 in setrlimit () from /lib/libc.so.7
(gdb) info thread
  Id   Target Id         Frame
* 1    LWP 100122        0x0000000804e3fbc0 in setrlimit () from /lib/libc.=
so.7
(gdb) bt
#0  0x0000000804e3fbc0 in setrlimit () from /lib/libc.so.7
Backtrace stopped: Cannot access memory at address 0x7fffff87fd08
quit)

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