https://issues.dlang.org/show_bug.cgi?id=23820
Issue ID: 23820
Summary: Undefined reference to RTInfoImpl
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
This is an issue that I've had for a while that only occurs within dmd as of
2.102.0, works in ldc.
Scenario: -betterC DLL, full D executable.
Results in missing symbols during the executable linking such as:
_D6object__T10RTInfoImplVAmA2i96i1063ZQBayG2m
>From what I can tell, dmd is emitting RTInfo at the type being compiled. Which
of course may not exist. In this scenario and it would be better to initialize
the template and emit it when required instead.
The workaround for this at the user side (full D executable) is to create
stubs:
```d
version (DigitalMars) version = NeedStubs;
version (NeedStubs) {
static foreach (Stub; [
"_D6object__T10RTInfoImplVAmA2i96i1063ZQBayG2m",
"_D6object__T10RTInfoImplVAmA2i136i87079ZQBcyG2m",
"_D6object__T10RTInfoImplVAmA2i208i3560789ZQBeyG2m",
"_D6object__T10RTInfoImplVAmA2i56i66ZQyyG2m",
"_D6object__T10RTInfoImplVAmA2i264i6098517954ZQBhyG2m",
"_D6object__T10RTInfoImplVAmA2i168i349524ZQBdyG2m",
"_D6object__T10RTInfoImplVAmA2i152i305834ZQBdyG2m",
]) {
mixin(() { return "extern(C) void " ~ Stub ~ "() { asm { naked; dl 0;
dl 0;}\n}\n"; }());
}
}
```
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