PR_GET_ENDIAN(2const) PR_GET_ENDIAN(2const) NAME PR_GET_ENDIAN - get the endianness of the calling process LIBRARY Standard C library (libc, -lc) SYNOPSIS #include /* Definition of PR_* constants */ #include int prctl(PR_GET_ENDIAN, int *endianness); DESCRIPTION Return the endianness of the calling process, in the location pointed to by endianness. RETURN VALUE On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error. ERRORS EFAULT endianness is an invalid address. STANDARDS Linux. PowerPC only. HISTORY Linux 2.6.18 (PowerPC). SEE ALSO prctl(2), PR_SET_ENDIAN(2const) Linux man-pages 6.19 2026-02-08 PR_GET_ENDIAN(2const)