1 /* Multiple versions of bzero
2 Copyright (C) 2010 Free Software Foundation, Inc.
3 Contributed by Intel Corporation.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 #include <init-arch.h>
24 /* Define multiple versions only for the definition in lib. */
27 .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
28 .globl __i686.get_pc_thunk.bx
29 .hidden __i686.get_pc_thunk.bx
31 .type __i686.get_pc_thunk.bx,@function
32 __i686.get_pc_thunk.bx:
38 .type __bzero, @gnu_indirect_function
40 cfi_adjust_cfa_offset (4)
41 cfi_rel_offset (ebx, 0)
42 call __i686.get_pc_thunk.bx
43 addl $_GLOBAL_OFFSET_TABLE_, %ebx
44 cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
46 call __init_cpu_features
47 1: leal __bzero_ia32@GOTOFF(%ebx), %eax
48 testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
50 leal __bzero_sse2@GOTOFF(%ebx), %eax
51 testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features@GOTOFF(%ebx)
53 leal __bzero_sse2_rep@GOTOFF(%ebx), %eax
55 cfi_adjust_cfa_offset (-4)
62 .type __bzero, @gnu_indirect_function
63 cmpl $0, KIND_OFFSET+__cpu_features
65 call __init_cpu_features
66 1: leal __bzero_ia32, %eax
67 testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features
69 leal __bzero_sse2, %eax
70 testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features
72 leal __bzero_sse2_rep, %eax
78 # define ENTRY(name) \
79 .type __bzero_ia32, @function; \
81 __bzero_ia32: cfi_startproc; \
85 cfi_endproc; .size __bzero_ia32, .-__bzero_ia32
88 # undef libc_hidden_builtin_def
89 /* IFUNC doesn't work with the hidden functions in shared library since
90 they will be called without setting up EBX needed for PLT which is
92 # define libc_hidden_builtin_def(name) \
93 .globl __GI___bzero; __GI___bzero = __bzero_ia32