mirror of
				https://sourceware.org/git/glibc.git
				synced 2025-11-03 20:53:13 +03:00 
			
		
		
		
	It is enabled through math-use-builtins-fma.h if glibc is built for VPFv4 (__ARM_FEATURE_FMA predefined by GCC), or through IFUNC (testing HWCAP_ARM_VFPv4) otherwise. Checked on arm-linux-gnueabihf. Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
		
			
				
	
	
		
			38 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Common definition for ifunc resolvers.  Linux/ARM version.
 | 
						|
   This file is part of the GNU C Library.
 | 
						|
   Copyright (C) 2017-2025 Free Software Foundation, Inc.
 | 
						|
 | 
						|
   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
 | 
						|
   <https://www.gnu.org/licenses/>.  */
 | 
						|
 | 
						|
#include <sysdep.h>
 | 
						|
#include <ifunc-init.h>
 | 
						|
 | 
						|
#define INIT_ARCH()
 | 
						|
 | 
						|
#define arm_libc_ifunc_redirected(redirected_name, name, expr)	\
 | 
						|
  __ifunc (redirected_name, name, expr(hwcap), int hwcap, INIT_ARCH)
 | 
						|
 | 
						|
#define arm_libm_ifunc(name, expr)				\
 | 
						|
  __ifunc (name, name, expr, int hwcap, libm_ifunc_init)
 | 
						|
 | 
						|
#if defined SHARED
 | 
						|
# define arm_libc_ifunc_hidden_def(redirect_name, name) \
 | 
						|
  __hidden_ver1 (name, __GI_##name, redirect_name) \
 | 
						|
    __attribute__ ((visibility ("hidden"))) \
 | 
						|
    __attribute_copy__ (name)
 | 
						|
#else
 | 
						|
# define arm_libc_ifunc_hidden_def(redirect_name, name)
 | 
						|
#endif
 |