[Issue 8218] New: shared library segmentation fault when missing un-needed import

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8218

           Summary: shared library segmentation fault when missing
                    un-needed import
           Product: D
           Version: D2
          Platform: All
        OS/Version: Mac OS X
            Status: NEW
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: thelastmammoth at gmail.com


--- Comment #0 from thelastmammoth at gmail.com 2012-06-11 01:36:19 PDT ---
That sounds like a bug:

dmd -shared -oflibfun.dylib fun #WOULD WORK with -lib instead of -shared
dmd -g -L-L. main  
./main #SEGFAULTS... see lldb output below


//main.d:
import std.stdio;
pragma(lib,"fun");
void main(){
    writeln();
}

//fun.d:
//import std.stdio; //UNCOMMENT THIS LINE TO MAKE IT WORK ...
extern(C)
int parse(int x){return x;}

--------------------------------
output of lldb:
Process 64987 stopped
* thread #1: tid = 0x1f03, 0x0000000100000e3a
main`D3std5stdio12__T7writelnZ7writelnFZv + 14 at stdio.d:1567, stop reason =
EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000100000e3a main`D3std5stdio12__T7writelnZ7writelnFZv + 14
at stdio.d:1567
   1564    {
   1565        static if (T.length == 0)
   1566        {
-> 1567            enforce(fputc('\n', .stdout.p.handle) == '\n');
   1568        }
   1569        else static if (T.length == 1 &&
   1570                        isSomeString!(typeof(args[0])) &&
(lldb) bt
* thread #1: tid = 0x1f03, 0x0000000100000e3a
main`D3std5stdio12__T7writelnZ7writelnFZv + 14 at stdio.d:1567, stop reason =
EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000100000e3a main`D3std5stdio12__T7writelnZ7writelnFZv + 14
at stdio.d:1567
    frame #1: 0x0000000100000e25 main`_Dmain + 9 at main.d:5
    frame #2: 0x0000000100011915 main`D2rt6dmain24mainUiPPaZi7runMainMFZv + 29
    frame #3: 0x00000001000112ca main`D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv
+ 38
    frame #4: 0x0000000100011962 main`D2rt6dmain24mainUiPPaZi6runAllMFZv + 58
    frame #5: 0x00000001000112ca main`D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv
+ 38
    frame #6: 0x0000000100011255 main`main + 237
    frame #7: 0x0000000100000e14 main`start + 52

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