/* Miscellaneous definitions for both glibc build and test. Copyright (C) 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 . */ #ifndef _INCLUDE_MISC_H #define _INCLUDE_MISC_H #include /* Add the compiler optimization to inhibit loop transformation to library calls. This is used to avoid recursive calls in memset and memmove default implementations in tests. */ #ifdef HAVE_CC_INHIBIT_LOOP_TO_LIBCALL # define inhibit_loop_to_libcall \ __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns"))) #else # define inhibit_loop_to_libcall #endif #ifdef HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL # define test_cc_inhibit_loop_to_libcall \ __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns"))) #else # define test_cc_inhibit_loop_to_libcall #endif /* Used to disable stack protection in sensitive places, like ifunc resolvers and early static TLS init. */ #ifdef __clang__ # define cc_inhibit_stack_protector \ __attribute__((no_stack_protector)) #else # define cc_inhibit_stack_protector \ __attribute__ ((__optimize__ ("-fno-stack-protector"))) #endif #if IS_IN (testsuite) || IS_IN (testsuite_internal) # ifdef HAVE_TEST_CC_NO_STACK_PROTECTOR # define test_inhibit_stack_protector cc_inhibit_stack_protector # define inhibit_stack_protector cc_inhibit_stack_protector # else # define test_inhibit_stack_protector # define inhibit_stack_protector # endif #else # ifdef HAVE_CC_NO_STACK_PROTECTOR # define inhibit_stack_protector cc_inhibit_stack_protector # else # define inhibit_stack_protector # endif #endif #endif