/sysdeps/sparc/sparc64/multiarch/memcpy.S
https://gitlab.com/Namal/glibc · Assembly · 167 lines · 139 code · 9 blank · 19 comment · 0 complexity · 9b1f39fba8ec49ca2659ab05a9e3a47c MD5 · raw file
- /* Multiple versions of memcpy
- All versions must be listed in ifunc-impl-list.c.
- Copyright (C) 2010-2016 Free Software Foundation, Inc.
- Contributed by David S. Miller (davem@davemloft.net)
- 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
- <http://www.gnu.org/licenses/>. */
- #include <sysdep.h>
- #if IS_IN (libc)
- .text
- ENTRY(memcpy)
- .type memcpy, @gnu_indirect_function
- # ifdef SHARED
- SETUP_PIC_REG_LEAF(o3, o5)
- # endif
- set HWCAP_SPARC_CRYPTO, %o1
- andcc %o0, %o1, %g0
- be 1f
- andcc %o0, HWCAP_SPARC_N2, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__memcpy_niagara4), %o1
- xor %o1, %gdop_lox10(__memcpy_niagara4), %o1
- # else
- set __memcpy_niagara4, %o1
- # endif
- ba 10f
- nop
- 1: be 1f
- andcc %o0, HWCAP_SPARC_BLKINIT, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__memcpy_niagara2), %o1
- xor %o1, %gdop_lox10(__memcpy_niagara2), %o1
- # else
- set __memcpy_niagara2, %o1
- # endif
- ba 10f
- nop
- 1: be 1f
- andcc %o0, HWCAP_SPARC_ULTRA3, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__memcpy_niagara1), %o1
- xor %o1, %gdop_lox10(__memcpy_niagara1), %o1
- # else
- set __memcpy_niagara1, %o1
- # endif
- ba 10f
- nop
- 1: be 9f
- nop
- # ifdef SHARED
- sethi %gdop_hix22(__memcpy_ultra3), %o1
- xor %o1, %gdop_lox10(__memcpy_ultra3), %o1
- # else
- set __memcpy_ultra3, %o1
- # endif
- ba 10f
- nop
- 9:
- # ifdef SHARED
- sethi %gdop_hix22(__memcpy_ultra1), %o1
- xor %o1, %gdop_lox10(__memcpy_ultra1), %o1
- # else
- set __memcpy_ultra1, %o1
- # endif
- 10:
- # ifdef SHARED
- add %o3, %o1, %o1
- # endif
- retl
- mov %o1, %o0
- END(memcpy)
- ENTRY(__mempcpy)
- .type __mempcpy, @gnu_indirect_function
- # ifdef SHARED
- SETUP_PIC_REG_LEAF(o3, o5)
- # endif
- set HWCAP_SPARC_CRYPTO, %o1
- andcc %o0, %o1, %g0
- be 1f
- andcc %o0, HWCAP_SPARC_N2, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__mempcpy_niagara4), %o1
- xor %o1, %gdop_lox10(__mempcpy_niagara4), %o1
- # else
- set __mempcpy_niagara4, %o1
- # endif
- ba 10f
- nop
- 1: be 1f
- andcc %o0, HWCAP_SPARC_BLKINIT, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__mempcpy_niagara2), %o1
- xor %o1, %gdop_lox10(__mempcpy_niagara2), %o1
- # else
- set __mempcpy_niagara2, %o1
- # endif
- ba 10f
- nop
- 1: be 1f
- andcc %o0, HWCAP_SPARC_ULTRA3, %g0
- # ifdef SHARED
- sethi %gdop_hix22(__mempcpy_niagara1), %o1
- xor %o1, %gdop_lox10(__mempcpy_niagara1), %o1
- # else
- set __mempcpy_niagara1, %o1
- # endif
- ba 10f
- nop
- 1: be 9f
- nop
- # ifdef SHARED
- sethi %gdop_hix22(__mempcpy_ultra3), %o1
- xor %o1, %gdop_lox10(__mempcpy_ultra3), %o1
- # else
- set __mempcpy_ultra3, %o1
- # endif
- ba 10f
- nop
- 9:
- # ifdef SHARED
- sethi %gdop_hix22(__mempcpy_ultra1), %o1
- xor %o1, %gdop_lox10(__mempcpy_ultra1), %o1
- # else
- set __mempcpy_ultra1, %o1
- # endif
- 10:
- # ifdef SHARED
- add %o3, %o1, %o1
- # endif
- retl
- mov %o1, %o0
- END(__mempcpy)
- libc_hidden_builtin_def (memcpy)
- libc_hidden_def (__mempcpy)
- weak_alias (__mempcpy, mempcpy)
- libc_hidden_builtin_def (mempcpy)
- #undef libc_hidden_builtin_def
- #define libc_hidden_builtin_def(name)
- #undef weak_alias
- #define weak_alias(x, y)
- #undef libc_hidden_def
- #define libc_hidden_def(name)
- #define memcpy __memcpy_ultra1
- #define __mempcpy __mempcpy_ultra1
- #endif
- #include "../memcpy.S"