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Makefile.inc
(359 B)
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bcopy.S
(6.98 KB)
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bcopy_resolver.c
(2.49 KB)
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bcopy_vsx.S
(2.09 KB)
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memcpy.S
(3.39 KB)
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memcpy_resolver.c
(61 B)
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memcpy_vsx.S
(2.35 KB)
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memmove.S
(52 B)
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memmove_resolver.c
(61 B)
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memmove_vsx.S
(87 B)
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strcpy.c
(1.54 KB)
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strcpy_arch_2_05.S
(3.55 KB)
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strcpy_resolver.c
(1.86 KB)
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strncpy.c
(1.55 KB)
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strncpy_arch_2_05.S
(3.12 KB)
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strncpy_resolver.c
(1.9 KB)
Editing: strncpy_arch_2_05.S
/*- * Copyright (c) 2018 Instituto de Pesquisas Eldorado * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the author nor the names of its contributors may * be used to endorse or promote products derived from this software * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <machine/asm.h> __FBSDID("$FreeBSD$"); ENTRY(__strncpy_arch_2_05) stdu %r1,-40(%r1) mflr %r0 std %r0,16(%r1) std %r3,32(%r1) xor %r6,%r6,%r6 /* fixed 0 reg */ /* align loop */ addi %r3,%r3,-1 .Lalign_loop: /* len? */ cmpdi %r5,0 beq .Lexit /* aligned? */ andi. %r0,%r4,7 beq .Ldw_copy /* copy */ lbz %r7,0(%r4) stbu %r7,1(%r3) addi %r4,%r4,1 addi %r5,%r5,-1 /* zero? */ cmpdi %r7,0 beq .Lzero b .Lalign_loop /* dword copy loop */ .Ldw_copy: /* prepare src and dst to use load/store and update */ addi %r3,%r3,-7 addi %r4,%r4,-8 .Ldw_copy_loop: cmpdi %r5,8 blt .Lbyte_copy ldu %r0,8(%r4) /* check for 0 */ cmpb %r7,%r0,%r6 cmpdi %r7,0 bne .Lbyte_copy_and_zero /* copy to dst */ stdu %r0,8(%r3) addi %r5,%r5,-8 b .Ldw_copy_loop /* Copy remaining src bytes, zero-out buffer * Note: r5 will be >= 8 */ .Lbyte_copy_and_zero: addi %r3,%r3,7 addi %r4,%r4,-1 .Lbyte_copy_and_zero_loop: lbzu %r7,1(%r4) stbu %r7,1(%r3) addi %r5,%r5,-1 cmpdi %r7,0 beq .Lzero b .Lbyte_copy_and_zero_loop /* zero-out remaining dst bytes */ .Lzero: addi %r3,%r3,1 li %r4,0 /* r5 has len already */ bl memset nop b .Lexit /* copy remaining (< 8) bytes */ .Lbyte_copy: cmpdi %r5,0 beq .Lexit addi %r3,%r3,7 addi %r4,%r4,7 mtctr %r5 .Lbyte_copy_loop: lbzu %r7,1(%r4) stbu %r7,1(%r3) cmpdi %r7,0 /* 0 found: zero out remaining bytes */ beq .Lbyte_copy_zero bdnz .Lbyte_copy_loop b .Lexit .Lbyte_copy_zero_loop: stbu %r6,1(%r3) .Lbyte_copy_zero: bdnz .Lbyte_copy_zero_loop .Lexit: /* epilogue */ ld %r3,32(%r1) ld %r0,16(%r1) mtlr %r0 addi %r1,%r1,40 blr END(__strncpy_arch_2_05) .section .note.GNU-stack,"",%progbits
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