Clang-14.0.6 compilation of application with "Hidden" visibility of symbol

Clang Frontend
1

Hi,

i compiled .c file using clang compiler and it’s uses one of defined function named objpool_put() which is declared as given below.
{{
int objpool_put(void *ptr)
}}
objpool_put() is clang compiled with below visibility i.e 'LOCAL + HIDDEN"
{{
readelf -s build/bin/ | grep objpool_put
5506: 0000000000980970 266 FUNC LOCAL HIDDEN 15 objpool_put
}}
Due to above ‘HIDDEN’ visibility, during libs packaging , below error is noticed,
{{
LookupError: No library provides non-weak symbol: objpool_put
}}
Where as same code, compilation using ‘gcc’ is successful as objpool_put symbol visibility permission are 'GLOBAL + DEFAULT"
{{
5559: 0000000000671906 242 FUNC GLOBAL DEFAULT 14 objpool_put
}}
How to ensure ‘clang’ too compile code with above visibility for respective symbol?

Regards
Koti

2

Hi,

Please ignore the query. issue resolved

3

Care to post the solution (in case others stumble across this thread having the same issue in the future)?

4

Hi,
Just adopted below format solution updated in below link.

{{

extern int SayHello() __attribute__((weak));

}}