[Issue 19660] New: 'export' keyword on OSX dynlib globals causing segfaults
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Fri Feb 8 10:11:46 UTC 2019
https://issues.dlang.org/show_bug.cgi?id=19660
Issue ID: 19660
Summary: 'export' keyword on OSX dynlib globals causing
segfaults
Product: D
Version: D2
Hardware: x86_64
OS: Mac OS X
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: redapple82570 at gmail.com
Created attachment 1732
--> https://issues.dlang.org/attachment.cgi?id=1732&action=edit
minimal example (Mac/Windows)
[DMD 2.084.0 on macOS 10.12]
The presence of 'export' on a global dynlib/DLL variable:
eg. "extern (C) export extern __gshared int someValue;"
... is causing inconsistent behavior between Mac/PC: keyword is required for
linking against DLL on Windows, but causes runtime segfaults* on Mac. Removing
'export' solves Mac crashes but then Windows linking fails.
* initially this issue was discovered due to the globals having incorrect
values. But the attached example is segfaulting.
LDC2 (1.14.0-beta1) does NOT exhibit the same issue.
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