To optimize out calls to undefined functions in PBL at compile-time instead of link time, let's define stubs for the functions that are referenced in obj-pbl-y files, but inside function sections that are ultimately unreferenced. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- include/errno.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/errno.h b/include/errno.h index 12e526a0d7ed..9a008e375221 100644 --- a/include/errno.h +++ b/include/errno.h @@ -7,8 +7,18 @@ extern int errno; +#ifndef __PBL__ void perror(const char *s); const char *strerror(int errnum); +#else +static inline void perror(const char *s) +{ +} +static inline const char *strerror(int errnum) +{ + return NULL; +} +#endif static inline int errno_set(int err) { -- 2.39.5