diff options
Diffstat (limited to 'sysdeps/powerpc')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.c (renamed from sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S) | 32 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S | 48 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.c (renamed from sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S) | 35 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/stpcpy.c | 2 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.c (renamed from sysdeps/powerpc/powerpc64/power7/stpcpy.S) | 22 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S | 43 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.c (renamed from sysdeps/powerpc/powerpc64/stpcpy.S) | 25 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power7/strcpy.S | 437 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/strcpy.S | 216 |
9 files changed, 66 insertions, 794 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.c index 09436115f4..6362066299 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S +++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.c @@ -1,5 +1,5 @@ -/* Optimized stpcpy implementation for POWER7. - Copyright (C) 2013-2015 Free Software Foundation, Inc. +/* Multiarch stpcpy for POWER7/PPC64. + Copyright (C) 2015 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 @@ -16,25 +16,21 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> +#include <string.h> -#undef EALIGN -#define EALIGN(name, alignt, words) \ - .section ".text"; \ - ENTRY_2(__stpcpy_power7) \ - .align ALIGNARG(alignt); \ - EALIGN_W_##words; \ - BODY_LABEL(__stpcpy_power7): \ - cfi_startproc; \ - LOCALENTRY(__stpcpy_power7) +extern __typeof (memcpy) __memcpy_power7 attribute_hidden; +extern __typeof (strlen) __strlen_power7 attribute_hidden; +extern __typeof (stpcpy) __stpcpy_power7 attribute_hidden; -#undef END -#define END(name) \ - cfi_endproc; \ - TRACEBACK(__stpcpy_power7) \ - END_2(__stpcpy_power7) +#define STPCPY __stpcpy_power7 +#define memcpy __memcpy_power7 +#define strlen __strlen_power7 +#undef libc_hidden_def +#define libc_hidden_def(name) +#undef weak_alias +#define weak_alias(name, alias) #undef libc_hidden_builtin_def #define libc_hidden_builtin_def(name) -#include <sysdeps/powerpc/powerpc64/power7/stpcpy.S> +#include <string/stpcpy.c> diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S deleted file mode 100644 index 858f885aa6..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S +++ /dev/null @@ -1,48 +0,0 @@ -/* Default stpcpy implementation for PowerPC64. - Copyright (C) 2013-2015 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -#if defined SHARED && IS_IN (libc) -# undef EALIGN -# define EALIGN(name, alignt, words) \ - .section ".text"; \ - ENTRY_2(__stpcpy_ppc) \ - .align ALIGNARG(alignt); \ - EALIGN_W_##words; \ - BODY_LABEL(__stpcpy_ppc): \ - cfi_startproc; \ - LOCALENTRY(__stpcpy_ppc) - -# undef END -# define END(name) \ - cfi_endproc; \ - TRACEBACK(__stpcpy_ppc) \ - END_2(__stpcpy_ppc) - -# undef weak_alias -# define weak_alias(name, alias) -# undef libc_hidden_def -# define libc_hidden_def(name) - -# undef libc_hidden_builtin_def -# define libc_hidden_builtin_def(name) \ - .globl __GI___stpcpy; __GI___stpcpy = __stpcpy_ppc -#endif - -#include <sysdeps/powerpc/powerpc64/stpcpy.S> diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.c index 69851bb70e..6e437fb6b9 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S +++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.c @@ -1,5 +1,5 @@ -/* Optimized strcpy implementation for POWER7. - Copyright (C) 2013-2015 Free Software Foundation, Inc. +/* Multiarch stpcpy for PPC64. + Copyright (C) 2015 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 @@ -16,25 +16,24 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> +#include <string.h> -#undef EALIGN -#define EALIGN(name, alignt, words) \ - .section ".text"; \ - ENTRY_2(__strcpy_power7) \ - .align ALIGNARG(alignt); \ - EALIGN_W_##words; \ - BODY_LABEL(__strcpy_power7): \ - cfi_startproc; \ - LOCALENTRY(__strcpy_power7) +extern __typeof (memcpy) __memcpy_ppc attribute_hidden; +extern __typeof (strlen) __strlen_ppc attribute_hidden; +extern __typeof (stpcpy) __stpcpy_ppc attribute_hidden; -#undef END -#define END(name) \ - cfi_endproc; \ - TRACEBACK(__strcpy_power7) \ - END_2(__strcpy_power7) +#define STPCPY __stpcpy_ppc +#define memcpy __memcpy_ppc +#define strlen __strlen_ppc +#undef weak_alias +#define weak_alias(name, aliasname) \ + extern __typeof (__stpcpy_ppc) aliasname \ + __attribute__ ((weak, alias ("__stpcpy_ppc"))); + +#undef libc_hidden_def +#define libc_hidden_def(name) #undef libc_hidden_builtin_def #define libc_hidden_builtin_def(name) -#include <sysdeps/powerpc/powerpc64/power7/strcpy.S> +#include <string/stpcpy.c> diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c index a5e1c037a1..c809f99982 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c +++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c @@ -32,4 +32,6 @@ libc_ifunc (__stpcpy, weak_alias (__stpcpy, stpcpy) libc_hidden_def (stpcpy) +#else +# include <string/stpcpy.c> #endif diff --git a/sysdeps/powerpc/powerpc64/power7/stpcpy.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.c index ef90142932..9f091d217e 100644 --- a/sysdeps/powerpc/powerpc64/power7/stpcpy.S +++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.c @@ -1,5 +1,5 @@ -/* Optimized stpcpy implementation for PowerPC64/POWER7. - Copyright (C) 2013-2015 Free Software Foundation, Inc. +/* Multiarch strcpy for POWER7/PPC64. + Copyright (C) 2015 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 @@ -16,9 +16,17 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#define USE_AS_STPCPY -#include <sysdeps/powerpc/powerpc64/power7/strcpy.S> +#include <string.h> -weak_alias (__stpcpy, stpcpy) -libc_hidden_def (__stpcpy) -libc_hidden_builtin_def (stpcpy) +extern __typeof (memcpy) __memcpy_power7 attribute_hidden; +extern __typeof (strlen) __strlen_power7 attribute_hidden; +extern __typeof (strcpy) __strcpy_power7 attribute_hidden; + +#define STRCPY __strcpy_power7 +#define memcpy __memcpy_power7 +#define strlen __strlen_power7 + +#undef libc_hidden_builtin_def +#define libc_hidden_builtin_def(name) + +#include <string/strcpy.c> diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S deleted file mode 100644 index f937555b6a..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S +++ /dev/null @@ -1,43 +0,0 @@ -/* Default strcpy implementation for PowerPC64. - Copyright (C) 2013-2015 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -#if defined SHARED && IS_IN (libc) -# undef EALIGN -# define EALIGN(name, alignt, words) \ - .section ".text"; \ - ENTRY_2(__strcpy_ppc) \ - .align ALIGNARG(alignt); \ - EALIGN_W_##words; \ - BODY_LABEL(__strcpy_ppc): \ - cfi_startproc; \ - LOCALENTRY(__strcpy_ppc) - -# undef END -# define END(name) \ - cfi_endproc; \ - TRACEBACK(__strcpy_ppc) \ - END_2(__strcpy_ppc) - -# undef libc_hidden_builtin_def -# define libc_hidden_builtin_def(name) \ - .globl __GI_strcpy; __GI_strcpy = __strcpy_ppc -#endif - -#include <sysdeps/powerpc/powerpc64/strcpy.S> diff --git a/sysdeps/powerpc/powerpc64/stpcpy.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.c index 2ed78306a2..b72203016f 100644 --- a/sysdeps/powerpc/powerpc64/stpcpy.S +++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.c @@ -1,5 +1,5 @@ -/* Optimized stpcpy implementation for PowerPC64. - Copyright (C) 1997-2015 Free Software Foundation, Inc. +/* Multiarch strcpy for PPC64. + Copyright (C) 2015 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 @@ -16,9 +16,20 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#define USE_AS_STPCPY -#include <sysdeps/powerpc/powerpc64/strcpy.S> +#include <string.h> -weak_alias (__stpcpy, stpcpy) -libc_hidden_def (__stpcpy) -libc_hidden_builtin_def (stpcpy) +#if defined SHARED && IS_IN (libc) +extern __typeof (memcpy) __memcpy_ppc attribute_hidden; +extern __typeof (strlen) __strlen_ppc attribute_hidden; +extern __typeof (strcpy) __strcpy_ppc attribute_hidden; + +# define STRCPY __strcpy_ppc +# define memcpy __memcpy_ppc +# define strlen __strlen_ppc + +# undef libc_hidden_builtin_def +# define libc_hidden_builtin_def(name) \ + __hidden_ver1 (__strcpy_ppc, __GI_strcpy, __strcpy_ppc); +#endif + +#include <string/strcpy.c> diff --git a/sysdeps/powerpc/powerpc64/power7/strcpy.S b/sysdeps/powerpc/powerpc64/power7/strcpy.S deleted file mode 100644 index 70f2987181..0000000000 --- a/sysdeps/powerpc/powerpc64/power7/strcpy.S +++ /dev/null @@ -1,437 +0,0 @@ -/* Optimized strcpy/stpcpy implementation for PowerPC64/POWER7. - Copyright (C) 2013-2015 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -/* Implements the function - - char * [r3] strcpy (char *dest [r3], const char *src [r4]) - - or - - char * [r3] strcpy (char *dest [r3], const char *src [r4]) - - if USE_AS_STPCPY is defined. It tries to use aligned memory accesses - when possible using the following algorithm: - - if (((((uintptr_t)dst & 0x7UL) == 0) && ((uintptr_t)src & 0x7UL) == 0)) - goto aligned_doubleword_copy; - if (((uintptr_t)dst & 0x7UL) == ((uintptr_t)src & 0x7UL)) - goto same_alignment; - goto unaligned; - - The aligned comparison are made using cmpb instructions. */ - -#ifdef USE_AS_STPCPY -# define FUNC_NAME __stpcpy -#else -# define FUNC_NAME strcpy -#endif - - .machine power7 -EALIGN (FUNC_NAME, 4, 0) - CALL_MCOUNT 2 - -#define rTMP r0 -#ifdef USE_AS_STPCPY -#define rRTN r3 /* pointer to previous word/doubleword in dest */ -#else -#define rRTN r12 /* pointer to previous word/doubleword in dest */ -#endif -#define rSRC r4 /* pointer to previous word/doubleword in src */ -#define rMASK r5 /* mask 0xffffffff | 0xffffffffffffffff */ -#define rWORD r6 /* current word from src */ -#define rALT r7 /* alternate word from src */ -#define rRTNAL r8 /* alignment of return pointer */ -#define rSRCAL r9 /* alignment of source pointer */ -#define rALCNT r10 /* bytes to read to reach 8 bytes alignment */ -#define rSUBAL r11 /* doubleword minus unaligned displacement */ - -#ifndef USE_AS_STPCPY -/* Save the dst pointer to use as return value. */ - mr rRTN, r3 -#endif - or rTMP, rSRC, rRTN - clrldi. rTMP, rTMP, 61 - bne L(check_alignment) - b L(aligned_doubleword_copy) - - .align 4 -L(check_alignment): - rldicl rRTNAL, rRTN, 0, 61 - rldicl rSRCAL, rSRC, 0, 61 - cmpld cr7, rSRCAL, rRTNAL - beq cr7, L(same_alignment) - b L(unaligned) - - .align 4 -L(same_alignment): -/* Src and dst with same alignment: align both to doubleword. */ - mr rALCNT, rRTN - lbz rWORD, 0(rSRC) - subfic rSUBAL, rRTNAL, 8 - addi rRTN, rRTN, 1 - addi rSRC, rSRC, 1 - cmpdi cr7, rWORD, 0 - stb rWORD, 0(rALCNT) - beq cr7, L(s2) - - add rALCNT, rALCNT, rSUBAL - subf rALCNT, rRTN, rALCNT - addi rALCNT, rALCNT, 1 - mtctr rALCNT - b L(s1) - - .align 4 -L(s0): - addi rSRC, rSRC, 1 - lbz rWORD, -1(rSRC) - cmpdi cr7, rWORD, 0 - stb rWORD, -1(rALCNT) - beqlr cr7 - mr rRTN, rALCNT -L(s1): - addi rALCNT, rRTN,1 - bdnz L(s0) - b L(aligned_doubleword_copy) - .align 4 -L(s2): - mr rRTN, rALCNT - blr - -/* For doubleword aligned memory, operate using doubleword load and stores. */ - .align 4 -L(aligned_doubleword_copy): - li rMASK, 0 - addi rRTN, rRTN, -8 - ld rWORD, 0(rSRC) - b L(g2) - - .align 4 -L(g0): ldu rALT, 8(rSRC) - stdu rWORD, 8(rRTN) - cmpb rTMP, rALT, rMASK - cmpdi rTMP, 0 - bne L(g1) - ldu rWORD, 8(rSRC) - stdu rALT, 8(rRTN) -L(g2): cmpb rTMP, rWORD, rMASK - cmpdi rTMP, 0 /* If rTMP is 0, no null's have been found. */ - beq L(g0) - - mr rALT, rWORD -/* We've hit the end of the string. Do the rest byte-by-byte. */ -L(g1): -#ifdef __LITTLE_ENDIAN__ - extrdi. rTMP, rALT, 8, 56 - stbu rALT, 8(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 48 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 40 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 32 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 24 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 16 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 8 - stbu rTMP, 1(rRTN) - beqlr- - extrdi rTMP, rALT, 8, 0 - stbu rTMP, 1(rRTN) -#else - extrdi. rTMP, rALT, 8, 0 - stbu rTMP, 8(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 8 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 16 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 24 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 32 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 40 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 48 - stbu rTMP, 1(rRTN) - beqlr - stbu rALT, 1(rRTN) -#endif - blr - - .align 4 -L(unaligned): - cmpdi rSRCAL, 0 /* Check src alignment */ - beq L(srcaligndstunalign) - /* src is unaligned */ - rlwinm r10, rSRC, 3,26,28 /* Calculate padding. */ - clrrdi rSRC, rSRC, 3 /* Align the addr to dw boundary */ - ld rWORD, 0(rSRC) /* Load doubleword from memory. */ - li rTMP, 0 - /* Discard bits not part of the string */ -#ifdef __LITTLE_ENDIAN__ - srd rALT, rWORD, r10 -#else - sld rALT, rWORD, r10 -#endif - cmpb rTMP, rALT, rTMP /* Compare each byte against null */ - /* Discard bits not part of the string */ -#ifdef __LITTLE_ENDIAN__ - sld rTMP, rTMP, r10 -#else - srd rTMP, rTMP, r10 -#endif - cmpdi rTMP, 0 - bne L(bytebybyte) /* if it has null, copy byte by byte */ - subfic r8, r9, 8 - rlwinm r5, rRTN, 3,26,28 /* Calculate padding in bits. */ - rldicl r9, rRTN, 0, 61 /* Calculate padding in bytes. */ - addi rRTN, rRTN, -1 - - cmpdi r5, 0 /* check dest alignment */ - beq L(srcunaligndstalign) - - /* both src and dst unaligned */ -#ifdef __LITTLE_ENDIAN__ - sld rWORD, rALT, r10 - mr r11, r10 - addi r11, r11, -8 /* Adjust byte pointer on loaded dw */ -#else - srd rWORD, rALT, r10 - subfic r11, r10, 64 -#endif - /* dst alignment is greater then src alignment? */ - cmpd cr7, r5, r10 - blt cr7, L(dst_align_small) - /* src alignment is less than dst */ - - /* Calculate the dst alignment differnce */ - subfic rALT, r9, 8 - mtctr rALT - - /* Write till dst is aligned */ - cmpdi rTMP, rALT, 4 - blt L(storebyte1) /* less than 4, store byte by byte */ - beq L(equal1) /* if its 4, store word */ - addi rTMP, rALT, -4 /* greater than 4, so stb and stw */ - mtctr rTMP -L(storebyte1): -#ifdef __LITTLE_ENDIAN__ - addi r11, r11, 8 /* Adjust byte pointer on loaded dw */ -#else - addi r11, r11, -8 -#endif - srd rALT, rWORD, r11 - stbu rALT, 1(rRTN) - bdnz L(storebyte1) - - subfic rALT, r9, 8 /* Check the remaining bytes */ - cmpdi rTMP, rALT, 4 - blt L(proceed) - - .align 4 -L(equal1): -#ifdef __LITTLE_ENDIAN__ - addi r11, r11, 8 /* Adjust byte pointer on loaded dw */ - srd rALT, rWORD, r11 -#else - subfic r11, r11, 64 - sld rALT, rWORD, r11 - srdi rALT, rALT, 32 -#endif - stw rALT, 1(rRTN) - addi rRTN, rRTN, 4 - -L(proceed): - mr rALT, rWORD - /* calculate the Left over bytes to be written */ - subfic r11, r10, 64 - subfic r5, r5, 64 - subf r5, r5, r11 /* remaining bytes on second dw */ - subfic r10, r5, 64 /* remaining bytes on first dw */ - subfic r9, r9, 8 - subf r8, r9, r8 /* recalculate padding */ -L(srcunaligndstalign): - addi rRTN, rRTN, 1 - subfic r5, r10, 64 /* remaining bytes on second dw */ - addi rSRC, rSRC, 8 - li rTMP,0 - b L(storedouble) - - .align 4 -L(dst_align_small): - mtctr r8 - /* Write till src is aligned */ -L(storebyte2): -#ifdef __LITTLE_ENDIAN__ - addi r11, r11, 8 /* Adjust byte pointer on dw */ -#else - addi r11, r11, -8 -#endif - srd rALT, rWORD, r11 - stbu rALT, 1(rRTN) - bdnz L(storebyte2) - - addi rSRC, rSRC, 8 /* Increment src pointer */ - addi rRTN, rRTN, 1 /* Increment dst pointer */ - rldicl r8, rRTN, 0, 61 /* Recalculate padding */ - - /* src is aligned */ -L(srcaligndstunalign): - ld rWORD, 0(rSRC) - mr rALT, rWORD - li rTMP, 0 /* Check null */ - cmpb rTMP, rWORD, rTMP - cmpdi rTMP, 0 - bne L(bytebybyte) /* Do byte by byte if there is NULL */ - rlwinm r5, rRTN, 3,26,28 /* Calculate padding */ - addi rRTN, rRTN, -1 - subfic r10, r8, 8 - /* write byte by byte till aligned */ -#ifdef __LITTLE_ENDIAN__ - li r11, -8 -#else - li r11, 64 -#endif - mtctr r10 - cmpdi rTMP, r10, 4 - blt L(storebyte) - beq L(equal) - addi rTMP, r10, -4 - mtctr rTMP -L(storebyte): -#ifdef __LITTLE_ENDIAN__ - addi r11, r11, 8 /* Adjust byte pointer on dw */ -#else - addi r11, r11, -8 -#endif - srd rALT, rWORD, r11 - stbu rALT, 1(rRTN) - bdnz L(storebyte) - - cmpdi rTMP, r10, 4 - blt L(align) - - .align 4 -L(equal): -#ifdef __LITTLE_ENDIAN__ - addi r11, r11, 8 - srd rALT, rWORD, r11 -#else - subfic r11, r11, 64 - sld rALT, rWORD, r11 - srdi rALT, rALT, 32 -#endif - stw rALT, 1(rRTN) - addi rRTN, rRTN, 4 -L(align): - addi rRTN, rRTN, 1 - addi rSRC, rSRC, 8 /* Increment src pointer */ - subfic r10, r5, 64 - li rTMP, 0 - /* dst addr aligned to 8 */ -L(storedouble): - ld rALT, 0(rSRC) /* load next dw */ - cmpb rTMP, rALT, rTMP - cmpdi rTMP, 0 /* check for null on each new dw */ - bne L(null) -#ifdef __LITTLE_ENDIAN__ - srd r9, rWORD, r10 /* bytes from first dw */ - sld r11, rALT, r5 /* bytes from second dw */ -#else - sld r9, rWORD, r10 - srd r11, rALT, r5 -#endif - or r11, r9, r11 /* make as a single dw */ - std r11, 0(rRTN) /* store as std on aligned addr */ - mr rWORD, rALT /* still few bytes left to be written */ - addi rRTN, rRTN, 8 /* increment dst addr */ - addi rSRC, rSRC, 8 /* increment src addr */ - b L(storedouble) /* Loop till NULL */ - - .align 4 - -/* We've hit the end of the string. Do the rest byte-by-byte. */ -L(null): - addi rRTN, rRTN, -1 - mr r10, r5 - mtctr r8 -#ifdef __LITTLE_ENDIAN__ - subfic r10, r10, 64 - addi r10, r10, -8 -#endif - cmpdi rTMP, r8, 4 - blt L(loop) - - /* we can still use stw if leftover >= 4*/ -#ifdef __LITTLE_ENDIAN__ - addi r10, r10, 8 - srd r11, rWORD, r10 -#else - subfic r10, r10, 64 - sld r11, rWORD, r10 - srdi r11, r11, 32 -#endif - stw r11, 1(rRTN) - addi rRTN, rRTN, 4 - - beq L(bytebybyte1) - addi r10, r10, 32 -#ifdef __LITTLE_ENDIAN__ - addi r10, r10, -8 -#else - subfic r10, r10, 64 -#endif - addi rTMP, r8, -4 - mtctr rTMP - /* remaining byte by byte part of first dw */ -L(loop): -#ifdef __LITTLE_ENDIAN__ - addi r10, r10, 8 -#else - addi r10, r10, -8 -#endif - srd rTMP, rWORD, r10 - stbu rTMP, 1(rRTN) - bdnz L(loop) - -L(bytebybyte1): - addi rRTN, rRTN, 1 - /* remaining byte by byte part of second dw */ -L(bytebybyte): - addi rRTN, rRTN, -8 - b L(g1) - -END (FUNC_NAME) - -#ifndef USE_AS_STPCPY -libc_hidden_builtin_def (strcpy) -#endif diff --git a/sysdeps/powerpc/powerpc64/strcpy.S b/sysdeps/powerpc/powerpc64/strcpy.S deleted file mode 100644 index c48b21e07b..0000000000 --- a/sysdeps/powerpc/powerpc64/strcpy.S +++ /dev/null @@ -1,216 +0,0 @@ -/* Optimized strcpy implementation for PowerPC64. - Copyright (C) 1997-2015 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -/* See strlen.s for comments on how the end-of-string testing works. */ - -/* char * [r3] strcpy (char *dest [r3], const char *src [r4]) */ - -#ifdef USE_AS_STPCPY -# define FUNC_NAME __stpcpy -#else -# define FUNC_NAME strcpy -#endif - -EALIGN (FUNC_NAME, 4, 0) - CALL_MCOUNT 2 - -#define rTMP r0 -#ifdef USE_AS_STPCPY -#define rRTN r3 /* pointer to previous word/doubleword in dest */ -#else -#define rRTN r12 /* pointer to previous word/doubleword in dest */ -#endif -#define rSRC r4 /* pointer to previous word/doubleword in src */ -#define rWORD r6 /* current word from src */ -#define rFEFE r7 /* constant 0xfefefeff | 0xfefefefefefefeff */ -#define r7F7F r8 /* constant 0x7f7f7f7f | 0x7f7f7f7f7f7f7f7f */ -#define rNEG r9 /* ~(word in s1 | r7F7F) */ -#define rALT r10 /* alternate word from src */ - -#ifndef USE_AS_STPCPY -/* Save the dst pointer to use as return value. */ - mr rRTN, r3 -#endif - or rTMP, rSRC, rRTN - clrldi. rTMP, rTMP, 61 - bne L(check_word_alignment) - -/* For doubleword aligned memory, operate using doubleword load and stores. */ - addi rRTN, rRTN, -8 - - lis rFEFE, -0x101 - lis r7F7F, 0x7f7f - ld rWORD, 0(rSRC) - addi rFEFE, rFEFE, -0x101 - addi r7F7F, r7F7F, 0x7f7f - sldi rTMP, rFEFE, 32 - insrdi r7F7F, r7F7F, 32, 0 - add rFEFE, rFEFE, rTMP - b L(g2) - -L(g0): ldu rALT, 8(rSRC) - stdu rWORD, 8(rRTN) - add rTMP, rFEFE, rALT - nor rNEG, r7F7F, rALT - and. rTMP, rTMP, rNEG - bne- L(g1) - ldu rWORD, 8(rSRC) - stdu rALT, 8(rRTN) -L(g2): add rTMP, rFEFE, rWORD - nor rNEG, r7F7F, rWORD - and. rTMP, rTMP, rNEG - beq+ L(g0) - - mr rALT, rWORD -/* We've hit the end of the string. Do the rest byte-by-byte. */ -L(g1): -#ifdef __LITTLE_ENDIAN__ - extrdi. rTMP, rALT, 8, 56 - stbu rALT, 8(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 48 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 40 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 32 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 24 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 16 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 8 - stbu rTMP, 1(rRTN) - beqlr- - extrdi rTMP, rALT, 8, 0 - stbu rTMP, 1(rRTN) -#else - extrdi. rTMP, rALT, 8, 0 - stbu rTMP, 8(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 8 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 16 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 24 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 32 - stbu rTMP, 1(rRTN) - beqlr - extrdi. rTMP, rALT, 8, 40 - stbu rTMP, 1(rRTN) - beqlr- - extrdi. rTMP, rALT, 8, 48 - stbu rTMP, 1(rRTN) - beqlr- - stbu rALT, 1(rRTN) -#endif - blr - -L(check_word_alignment): - clrldi. rTMP, rTMP, 62 - bne L(unaligned) - -/* For word aligned memory, operate using word load and stores. */ - addi rRTN, rRTN, -4 - - lis rFEFE, -0x101 - lis r7F7F, 0x7f7f - lwz rWORD, 0(rSRC) - addi rFEFE, rFEFE, -0x101 - addi r7F7F, r7F7F, 0x7f7f - b L(g5) - -L(g3): lwzu rALT, 4(rSRC) - stwu rWORD, 4(rRTN) - add rTMP, rFEFE, rALT - nor rNEG, r7F7F, rALT - and. rTMP, rTMP, rNEG - bne- L(g4) - lwzu rWORD, 4(rSRC) - stwu rALT, 4(rRTN) -L(g5): add rTMP, rFEFE, rWORD - nor rNEG, r7F7F, rWORD - and. rTMP, rTMP, rNEG - beq+ L(g3) - - mr rALT, rWORD -/* We've hit the end of the string. Do the rest byte-by-byte. */ -L(g4): -#ifdef __LITTLE_ENDIAN__ - rlwinm. rTMP, rALT, 0, 24, 31 - stbu rALT, 4(rRTN) - beqlr- - rlwinm. rTMP, rALT, 24, 24, 31 - stbu rTMP, 1(rRTN) - beqlr- - rlwinm. rTMP, rALT, 16, 24, 31 - stbu rTMP, 1(rRTN) - beqlr- - rlwinm rTMP, rALT, 8, 24, 31 - stbu rTMP, 1(rRTN) -#else - rlwinm. rTMP, rALT, 8, 24, 31 - stbu rTMP, 4(rRTN) - beqlr- - rlwinm. rTMP, rALT, 16, 24, 31 - stbu rTMP, 1(rRTN) - beqlr- - rlwinm. rTMP, rALT, 24, 24, 31 - stbu rTMP, 1(rRTN) - beqlr- - stbu rALT, 1(rRTN) -#endif - blr - -/* Oh well. In this case, we just do a byte-by-byte copy. */ - .align 4 - nop -L(unaligned): - lbz rWORD, 0(rSRC) - addi rRTN, rRTN, -1 - cmpwi rWORD, 0 - beq- L(u2) - -L(u0): lbzu rALT, 1(rSRC) - stbu rWORD, 1(rRTN) - cmpwi rALT, 0 - beq- L(u1) - nop /* Let 601 load start of loop. */ - lbzu rWORD, 1(rSRC) - stbu rALT, 1(rRTN) - cmpwi rWORD, 0 - bne+ L(u0) -L(u2): stbu rWORD, 1(rRTN) - blr -L(u1): stbu rALT, 1(rRTN) - blr -END (FUNC_NAME) - -#ifndef USE_AS_STPCPY -libc_hidden_builtin_def (strcpy) -#endif |