https://issues.dlang.org/show_bug.cgi?id=22428
Issue ID: 22428
Summary: importC: static variables/functions emit global
symbols
Product: D
Version: D2
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
dmd emits global symbols even for static variables / functions:
```
static int staticVar;
int globalVar;
static void staticFunc() {
static int staticVar;
}
```
```
dmd -c -betterC staticvar.c
nm staticvar.o
0000000000000000 t
0000000000000008 B _D9staticvar10staticFuncUY14staticLocalVari
0000000000000004 B globalVar
0000000000000000 W staticFunc
0000000000000000 B staticVar
```
B = global, BSS section
W = global, weak symbol
For reference, Clang doesn't emit those symbols and GCC emits local symbols.
```
0000000000000004 C globalVar
0000000000000000 t staticFunc
0000000000000004 b staticLocalVar.1959
0000000000000000 b staticVar
```
This is a wontfix for D (issue 7083), but for C this is essential for when
there are multiple `static` functions with the same name but different
implementations. For example `my_flush_events` for different audio backends in
libsoundio:
https://github.com/andrewrk/libsoundio/search?q=my_flush_events
--
