http://d.puremagic.com/issues/show_bug.cgi?id=7247

           Summary: All programs segfault before main
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: jlquinn@optonline.net


--- Comment #0 from Jerry Quinn <jlquinn@optonline.net> 2012-01-07 23:51:51 PST ---
dmd 2.057, Ubuntu 11.10 x86_64

jlquinn@wyvern:~/bluemax/src/trlblues$ cat junk2.d
import std.stdio;

int main(string[] args) {
  writefln("hi");
  // string s;
  // stdin.readln("%s", s);
  return 0;
}jlquinn@wyvern:~/bluemax/src/trlblues$ cat junk2.d
import std.stdio;
int main(string[] args) {
  writefln("hi");
  return 0;
}
jlquinn@wyvern:~/bluemax/src/trlblues$ ~/dmd2/linux/bin64/dmd junk2.d
jlquinn@wyvern:~/bluemax/src/trlblues$ ./junk2
Segmentation fault

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Jerry Quinn <jlquinn@optonline.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P1


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--- Comment #1 from Jerry Quinn <jlquinn@optonline.net> 2012-01-07 23:53:26 PST ---
Not sure how useful it is, but here's the gdb backtrace.

jlquinn@wyvern:~/bluemax/src/trlblues$ ~/dmd2/linux/bin64/dmd -g junk2.d
jlquinn@wyvern:~/bluemax/src/trlblues$ gdb junk2
GNU gdb (Ubuntu/Linaro 7.3-0ubuntu2) 7.3-2011.08
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/jlquinn/bluemax/src/trlblues/junk2...done.
(gdb) run
Starting program: /home/jlquinn/bluemax/src/trlblues/junk2
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x0000000000451306 in gc_init ()
(gdb) bt
#0  0x0000000000451306 in gc_init ()
#1  0x00007fffffffe110 in ?? ()
#2  0x00007fffffffe010 in ?? ()
#3  0x000000000044b1c2 in rt.dmain2.main() ()
#4  0x00007fffffffe110 in ?? ()
#5  0x00007fffffffe060 in ?? ()
#6  0x000000000044ad4a in rt.dmain2.main() ()
#7  0x0000000000000001 in ?? ()
#8  0x0000000000000028 in ?? ()
#9  0x0000000000492020 in ?? ()
#10 0x0000000000000001 in ?? ()
#11 0x0000000000492020 in ?? ()
#12 0x00007fffffffe4c6 in ?? ()
#13 0x00007fffffffe110 in ?? ()
#14 0x00007fffffffe110 in ?? ()
#15 0x000000000044acdb in main ()

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--- Comment #2 from Jerry Quinn <jlquinn@optonline.net> 2012-01-13 20:51:34 PST ---
2.056 worked fine for me.

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--- Comment #3 from Jerry Quinn <jlquinn@optonline.net> 2012-01-13 21:06:10 PST ---
Rebuilding dmd from src didn't help.  I get the same segfault.

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--- Comment #4 from Jerry Quinn <jlquinn@optonline.net> 2012-01-13 21:16:11 PST ---
32 bit dmd works, 64 bit dmd is busted.

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timon.gehr@gmx.ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |timon.gehr@gmx.ch


--- Comment #5 from timon.gehr@gmx.ch 2012-01-14 11:21:22 PST ---
I don't think the bug tracker is the right place to get help for solving your problem, because it must be some issue with your specific setup rather than a compiler bug. (dmd 2.057 works fine for me on Ubuntu 11.10 x86_64). Maybe you want to discuss the crashes on the newsgroup?

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla@digitalmars.com


--- Comment #6 from Walter Bright <bugzilla@digitalmars.com> 2012-01-19 02:30:46 PST ---
I suspect something is wrong with your installation, as this is not failing like this on any of our test machines nor any other users.

Lots of times this kind of mysterious failure can come about from having another, older, libphobos2.a somewhere on your system that is getting linked in instead.

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--- Comment #7 from Jerry Quinn <jlquinn@optonline.net> 2012-01-19 10:00:19 PST ---
jlquinn@wyvern:~$ locate libphobos2.a /home/jlquinn/dmd2/freebsd/lib32/libphobos2.a /home/jlquinn/dmd2/linux/lib32/libphobos2.a /home/jlquinn/dmd2/linux/lib64/libphobos2.a /home/jlquinn/dmd2/osx/lib/libphobos2.a

Anything else I can check?

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--- Comment #8 from Walter Bright <bugzilla@digitalmars.com> 2012-01-19 13:23:53 PST ---
Delete them all and reinstall. Also, make sure you don't have other phobos directories around.

Just a note: I've seen a pattern over and over - the person will insist they did a clean installation, and then a while later will discover an old version floating around somewhere they hadn't looked.

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