/* wcsnlen dispatch for RTLD and non-multiarch .c files Copyright (C) 2022-2024 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ /* wcsnlen non-multiarch build is split into two files, wcsnlen-generic.c and wcsnlen.S. The wcsnlen.S build is for ISA level >= 2 uses the optimized assembly implementations in multiarch/wcsnlen*.S. This must be split into two files because we cannot include C code from assembly or vice versa. */ #include #if MINIMUM_X86_ISA_LEVEL >= 2 # define WCSNLEN __wcsnlen /* This symbol must stay linked to the name in wcslen.S. */ #if IS_IN (rtld) # define OVERFLOW_STRLEN __wcslen #else # define OVERFLOW_STRLEN HIDDEN_JUMPTARGET (__wcslen) #endif # define DEFAULT_IMPL_V2 "multiarch/wcsnlen-sse4_1.S" # define DEFAULT_IMPL_V3 "multiarch/wcsnlen-avx2.S" # define DEFAULT_IMPL_V4 "multiarch/wcsnlen-evex.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" # include "isa-default-impl.h" weak_alias (__wcsnlen, wcsnlen) libc_hidden_def (__wcsnlen) #endif