| Issue |
95891
|
| Summary |
The compiler generates mangled weak symbol in `extern "C"`
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
AllanZyne
|
example:
```c++
// weak.cpp
extern "C" {
int __xxx(void) { return 0; }
#pragma weak xxx = __xxx
}
```
```bash
$ clang++ -shared weak.cpp -o libweak.so
$ nm -D libweak.so
w __cxa_finalize
w __gmon_start__
w _ITM_deregisterTMCloneTable
w _ITM_registerTMCloneTable
0000000000001100 T __xxx
0000000000001100 W _Z3xxxv
```
compare with gcc:
```bash
$ g++ -shared weak.cpp -o libweak_gcc.so
$ nm -D libweak_gcc.so
w __cxa_finalize
w __gmon_start__
w _ITM_deregisterTMCloneTable
w _ITM_registerTMCloneTable
00000000000010f9 T __xxx
00000000000010f9 W xxx
```
![]()
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
