diff options
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/Makefile | 2 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | 9 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S | 33 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcasestr-ppc64.c | 34 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcasestr.c | 38 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power8/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power8/strcasestr-ppc64.c | 29 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power8/strcasestr.S | 528 |
8 files changed, 1 insertions, 675 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile index 5624249fe2..a38ff46448 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile @@ -26,7 +26,7 @@ sysdep_routines += memcpy-power8-cached memcpy-power7 memcpy-a2 memcpy-power6 \ memmove-power7 memmove-ppc64 wordcopy-ppc64 \ strncpy-power8 \ strspn-power8 strspn-ppc64 strcspn-power8 strcspn-ppc64 \ - strlen-power8 strcasestr-power8 strcasestr-ppc64 \ + strlen-power8 \ strcasecmp-ppc64 strcasecmp-power8 strncase-ppc64 \ strncase-power8 diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c index e3e6f5fd10..30fd89e109 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -432,14 +432,5 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_ppc)) - /* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c. */ - IFUNC_IMPL (i, name, strcasestr, - IFUNC_IMPL_ADD (array, i, strcasestr, - hwcap2 & PPC_FEATURE2_ARCH_2_07 - && hwcap & PPC_FEATURE_HAS_ALTIVEC, - __strcasestr_power8) - IFUNC_IMPL_ADD (array, i, strcasestr, 1, - __strcasestr_ppc)) - return 0; } diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S deleted file mode 100644 index 4670d03aaa..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S +++ /dev/null @@ -1,33 +0,0 @@ -/* Optimized strcasestr implementation for POWER8. - Copyright (C) 2016-2024 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 - <https://www.gnu.org/licenses/>. */ - -#define STRCASESTR __strcasestr_power8 - -#undef libc_hidden_builtin_def -#define libc_hidden_builtin_def(name) - -/* The following definitions are used in strcasestr optimization. */ - -/* strlen is used to calculate len of r4. */ -#define STRLEN __strlen_power8 -/* strnlen is used to check if len of r3 is more than r4. */ -#define STRNLEN __strnlen_power8 -/* strchr is used to check if first char of r4 is present in r3. */ -#define STRCHR __strchr_power8 - -#include <sysdeps/powerpc/powerpc64/power8/strcasestr.S> diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/strcasestr-ppc64.c deleted file mode 100644 index 073d8beaff..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-ppc64.c +++ /dev/null @@ -1,34 +0,0 @@ -/* PowerPC64 default implementation of strcasestr. - Copyright (C) 2016-2024 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 - <https://www.gnu.org/licenses/>. */ - -#include <string.h> - -#define STRCASESTR __strcasestr_ppc -#if IS_IN (libc) && defined(SHARED) -# undef libc_hidden_builtin_def -# define libc_hidden_builtin_def(name) \ - __hidden_ver1(__strcasestr_ppc, __GI_strcasestr, __strcasestr_ppc); -#endif - - -#undef weak_alias -#define weak_alias(a,b) - -extern __typeof (strcasestr) __strcasestr_ppc attribute_hidden; - -#include <string/strcasestr.c> diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c b/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c deleted file mode 100644 index d2bda3f487..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c +++ /dev/null @@ -1,38 +0,0 @@ -/* Multiple versions of strcasestr. - Copyright (C) 2016-2024 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 - <https://www.gnu.org/licenses/>. */ - -#if IS_IN (libc) -# include <string.h> -# include <shlib-compat.h> -# include "init-arch.h" - -extern __typeof (__strcasestr) __strcasestr_ppc attribute_hidden; -extern __typeof (__strcasestr) __strcasestr_power8 attribute_hidden; - -/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle - ifunc symbol properly. */ -libc_ifunc (__strcasestr, - (hwcap2 & PPC_FEATURE2_ARCH_2_07 - && hwcap & PPC_FEATURE_HAS_ALTIVEC) - ? __strcasestr_power8 - : __strcasestr_ppc); - -weak_alias (__strcasestr, strcasestr) -#else -#include <string/strcasestr.c> -#endif diff --git a/sysdeps/powerpc/powerpc64/power8/Makefile b/sysdeps/powerpc/powerpc64/power8/Makefile deleted file mode 100644 index 71a59529f3..0000000000 --- a/sysdeps/powerpc/powerpc64/power8/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),string) -sysdep_routines += strcasestr-ppc64 -endif diff --git a/sysdeps/powerpc/powerpc64/power8/strcasestr-ppc64.c b/sysdeps/powerpc/powerpc64/power8/strcasestr-ppc64.c deleted file mode 100644 index 188d81a717..0000000000 --- a/sysdeps/powerpc/powerpc64/power8/strcasestr-ppc64.c +++ /dev/null @@ -1,29 +0,0 @@ -/* Optimized strcasestr implementation for PowerPC64/POWER8. - Copyright (C) 2016-2024 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 - <https://www.gnu.org/licenses/>. */ - -#include <string.h> - -#define STRCASESTR __strcasestr_ppc -#undef libc_hidden_builtin_def -#define libc_hidden_builtin_def(__name) - -#undef weak_alias -#define weak_alias(a,b) -extern __typeof (strcasestr) __strcasestr_ppc attribute_hidden; - -#include <string/strcasestr.c> diff --git a/sysdeps/powerpc/powerpc64/power8/strcasestr.S b/sysdeps/powerpc/powerpc64/power8/strcasestr.S deleted file mode 100644 index fc98574bec..0000000000 --- a/sysdeps/powerpc/powerpc64/power8/strcasestr.S +++ /dev/null @@ -1,528 +0,0 @@ -/* Optimized strcasestr implementation for PowerPC64/POWER8. - Copyright (C) 2016-2024 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 - <https://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <locale-defines.h> - -/* Char * [r3] strcasestr (char *s [r3], char * pat[r4]) */ - -/* The performance gain is obtained by comparing 16 bytes. */ - -/* When the first char of r4 is hit ITERATIONS times in r3 - fallback to default. */ -#define ITERATIONS 64 - -#ifndef STRCASESTR -# define STRCASESTR __strcasestr -#endif - -#ifndef STRLEN -/* For builds without IFUNC support, local calls should be made to internal - GLIBC symbol (created by libc_hidden_builtin_def). */ -# ifdef SHARED -# define STRLEN __GI_strlen -# else -# define STRLEN strlen -# endif -#endif - -#ifndef STRNLEN -/* For builds without IFUNC support, local calls should be made to internal - GLIBC symbol (created by libc_hidden_builtin_def). */ -# ifdef SHARED -# define STRNLEN __GI_strnlen -# else -# define STRNLEN __strnlen -# endif -#endif - -#ifndef STRCHR -# ifdef SHARED -# define STRCHR __GI_strchr -# else -# define STRCHR strchr -# endif -#endif - -/* Convert 16 bytes of v4 and reg to lowercase and compare. */ -#define TOLOWER(reg) \ - vcmpgtub v6, v4, v1; \ - vcmpgtub v7, v2, v4; \ - vand v8, v7, v6; \ - vand v8, v8, v3; \ - vor v4, v8, v4; \ - vcmpgtub v6, reg, v1; \ - vcmpgtub v7, v2, reg; \ - vand v8, v7, v6; \ - vand v8, v8, v3; \ - vor reg, v8, reg; \ - vcmpequb. v6, reg, v4; - -#define FRAMESIZE (FRAME_MIN_SIZE+48) - .machine power8 -ENTRY (STRCASESTR, 4) - CALL_MCOUNT 2 - mflr r0 /* Load link register LR to r0. */ - std r31, -8(r1) /* Save callers register r31. */ - std r30, -16(r1) /* Save callers register r30. */ - std r29, -24(r1) /* Save callers register r29. */ - std r28, -32(r1) /* Save callers register r28. */ - std r27, -40(r1) /* Save callers register r27. */ - std r0, 16(r1) /* Store the link register. */ - cfi_offset(r31, -8) - cfi_offset(r30, -16) - cfi_offset(r29, -24) - cfi_offset(r28, -32) - cfi_offset(r27, -40) - cfi_offset(lr, 16) - stdu r1, -FRAMESIZE(r1) /* Create the stack frame. */ - cfi_adjust_cfa_offset(FRAMESIZE) - - dcbt 0, r3 - dcbt 0, r4 - cmpdi cr7, r3, 0 /* Input validation. */ - beq cr7, L(retnull) - cmpdi cr7, r4, 0 - beq cr7, L(retnull) - - mr r29, r3 - mr r30, r4 - /* Load first byte from r4 and check if its null. */ - lbz r6, 0(r4) - cmpdi cr7, r6, 0 - beq cr7, L(ret_r3) - - ld r10, __libc_tsd_LOCALE@got@tprel(r2) - add r9, r10, __libc_tsd_LOCALE@tls - ld r9, 0(r9) - ld r9, LOCALE_CTYPE_TOUPPER(r9) - sldi r10, r6, 2 /* Convert to upper case. */ - lwzx r28, r9, r10 - - ld r10, __libc_tsd_LOCALE@got@tprel(r2) - add r11, r10, __libc_tsd_LOCALE@tls - ld r11, 0(r11) - ld r11, LOCALE_CTYPE_TOLOWER(r11) - sldi r10, r6, 2 /* Convert to lower case. */ - lwzx r27, r11, r10 - - /* Check if the first char is present. */ - mr r4, r27 - bl STRCHR - nop - mr r5, r3 - mr r3, r29 - mr r29, r5 - mr r4, r28 - bl STRCHR - nop - cmpdi cr7, r29, 0 - beq cr7, L(firstpos) - cmpdi cr7, r3, 0 - beq cr7, L(skipcheck) - cmpw cr7, r3, r29 - ble cr7, L(firstpos) - /* Move r3 to the first occurrence. */ -L(skipcheck): - mr r3, r29 -L(firstpos): - mr r29, r3 - - sldi r9, r27, 8 - or r28, r9, r28 - /* Reg r27 is used to count the number of iterations. */ - li r27, 0 - /* If first char of search str is not present. */ - cmpdi cr7, r3, 0 - ble cr7, L(end) - - /* Find the length of pattern. */ - mr r3, r30 - bl STRLEN - nop - - cmpdi cr7, r3, 0 /* If search str is null. */ - beq cr7, L(ret_r3) - - mr r31, r3 - mr r4, r3 - mr r3, r29 - bl STRNLEN - nop - - cmpd cr7, r3, r31 /* If len(r3) < len(r4). */ - blt cr7, L(retnull) - - mr r3, r29 - - /* Locales not matching ASCII for single bytes. */ - ld r10, __libc_tsd_LOCALE@got@tprel(r2) - add r9, r10, __libc_tsd_LOCALE@tls - ld r9, 0(r9) - ld r7, 0(r9) - addi r7, r7, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES - lwz r8, 0(r7) - cmpdi cr7, r8, 1 - beq cr7, L(bytebybyte) - - /* If len(r4) < 16 handle byte by byte. */ - /* For shorter strings we will not use vector registers. */ - cmpdi cr7, r31, 16 - blt cr7, L(bytebybyte) - - /* Comparison values used for TOLOWER. */ - /* Load v1 = 64('A' - 1), v2 = 91('Z' + 1), v3 = 32 in each byte. */ - vspltish v0, 0 - vspltisb v5, 2 - vspltisb v4, 4 - vsl v3, v5, v4 - vaddubm v1, v3, v3 - vspltisb v5, 15 - vaddubm v2, v5, v5 - vaddubm v2, v1, v2 - vspltisb v4, -3 - vaddubm v2, v2, v4 - - /* - 1. Load 16 bytes from r3 and r4 - 2. Check if there is null, If yes, proceed byte by byte path. - 3. Else,Convert both to lowercase and compare. - 4. If they are same proceed to 1. - 5. If they dont match, find if first char of r4 is present in the - loaded 16 byte of r3. - 6. If yes, move position, load next 16 bytes of r3 and proceed to 2. - */ - - mr r8, r3 /* Save r3 for future use. */ - mr r4, r30 /* Restore r4. */ - clrldi r10, r4, 60 - lvx v5, 0, r4 /* Load 16 bytes from r4. */ - cmpdi cr7, r10, 0 - beq cr7, L(begin2) - /* If r4 is unaligned, load another 16 bytes. */ -#ifdef __LITTLE_ENDIAN__ - lvsr v7, 0, r4 -#else - lvsl v7, 0, r4 -#endif - addi r5, r4, 16 - lvx v9, 0, r5 -#ifdef __LITTLE_ENDIAN__ - vperm v5, v9, v5, v7 -#else - vperm v5, v5, v9, v7 -#endif -L(begin2): - lvx v4, 0, r3 - vcmpequb. v7, v0, v4 /* Check for null. */ - beq cr6, L(nullchk6) - b L(trailcheck) - - .align 4 -L(nullchk6): - clrldi r10, r3, 60 - cmpdi cr7, r10, 0 - beq cr7, L(next16) -#ifdef __LITTLE_ENDIAN__ - lvsr v7, 0, r3 -#else - lvsl v7, 0, r3 -#endif - addi r5, r3, 16 - /* If r3 is unaligned, load another 16 bytes. */ - lvx v10, 0, r5 -#ifdef __LITTLE_ENDIAN__ - vperm v4, v10, v4, v7 -#else - vperm v4, v4, v10, v7 -#endif -L(next16): - vcmpequb. v6, v0, v5 /* Check for null. */ - beq cr6, L(nullchk) - b L(trailcheck) - - .align 4 -L(nullchk): - vcmpequb. v6, v0, v4 - beq cr6, L(nullchk1) - b L(retnull) - - .align 4 -L(nullchk1): - /* Convert both v3 and v4 to lower. */ - TOLOWER(v5) - /* If both are same, branch to match. */ - blt cr6, L(match) - /* Find if the first char is present in next 15 bytes. */ -#ifdef __LITTLE_ENDIAN__ - vspltb v6, v5, 15 - vsldoi v7, v0, v4, 15 -#else - vspltb v6, v5, 0 - vspltisb v7, 8 - vslo v7, v4, v7 -#endif - vcmpequb v7, v6, v7 - vcmpequb. v6, v0, v7 - /* Shift r3 by 16 bytes and proceed. */ - blt cr6, L(shift16) - vclzd v8, v7 -#ifdef __LITTLE_ENDIAN__ - vspltb v6, v8, 15 -#else - vspltb v6, v8, 7 -#endif - vcmpequb. v6, v6, v1 - /* Shift r3 by 8 bytes and proceed. */ - blt cr6, L(shift8) - b L(begin) - - .align 4 -L(match): - /* There is a match of 16 bytes, check next bytes. */ - cmpdi cr7, r31, 16 - mr r29, r3 - beq cr7, L(ret_r3) - -L(secondmatch): - addi r3, r3, 16 - addi r4, r4, 16 - /* Load next 16 bytes of r3 and r4 and compare. */ - clrldi r10, r4, 60 - cmpdi cr7, r10, 0 - beq cr7, L(nextload) - /* Handle unaligned case. */ - vor v6, v9, v9 - vcmpequb. v7, v0, v6 - beq cr6, L(nullchk2) - b L(trailcheck) - - .align 4 -L(nullchk2): -#ifdef __LITTLE_ENDIAN__ - lvsr v7, 0, r4 -#else - lvsl v7, 0, r4 -#endif - addi r5, r4, 16 - /* If r4 is unaligned, load another 16 bytes. */ - lvx v9, 0, r5 -#ifdef __LITTLE_ENDIAN__ - vperm v11, v9, v6, v7 -#else - vperm v11, v6, v9, v7 -#endif - b L(compare) - - .align 4 -L(nextload): - lvx v11, 0, r4 -L(compare): - vcmpequb. v7, v0, v11 - beq cr6, L(nullchk3) - b L(trailcheck) - - .align 4 -L(nullchk3): - clrldi r10, r3, 60 - cmpdi cr7, r10, 0 - beq cr7, L(nextload1) - /* Handle unaligned case. */ - vor v4, v10, v10 - vcmpequb. v7, v0, v4 - beq cr6, L(nullchk4) - b L(retnull) - - .align 4 -L(nullchk4): -#ifdef __LITTLE_ENDIAN__ - lvsr v7, 0, r3 -#else - lvsl v7, 0, r3 -#endif - addi r5, r3, 16 - /* If r3 is unaligned, load another 16 bytes. */ - lvx v10, 0, r5 -#ifdef __LITTLE_ENDIAN__ - vperm v4, v10, v4, v7 -#else - vperm v4, v4, v10, v7 -#endif - b L(compare1) - - .align 4 -L(nextload1): - lvx v4, 0, r3 -L(compare1): - vcmpequb. v7, v0, v4 - beq cr6, L(nullchk5) - b L(retnull) - - .align 4 -L(nullchk5): - /* Convert both v3 and v4 to lower. */ - TOLOWER(v11) - /* If both are same, branch to secondmatch. */ - blt cr6, L(secondmatch) - /* Continue the search. */ - b L(begin) - - .align 4 -L(trailcheck): - ld r10, __libc_tsd_LOCALE@got@tprel(r2) - add r11, r10, __libc_tsd_LOCALE@tls - ld r11, 0(r11) - ld r11, LOCALE_CTYPE_TOLOWER(r11) -L(loop2): - lbz r5, 0(r3) /* Load byte from r3. */ - lbz r6, 0(r4) /* Load next byte from r4. */ - cmpdi cr7, r6, 0 /* Is it null? */ - beq cr7, L(updater3) - cmpdi cr7, r5, 0 /* Is it null? */ - beq cr7, L(retnull) /* If yes, return. */ - addi r3, r3, 1 - addi r4, r4, 1 /* Increment r4. */ - sldi r10, r5, 2 /* Convert to lower case. */ - lwzx r10, r11, r10 - sldi r7, r6, 2 /* Convert to lower case. */ - lwzx r7, r11, r7 - cmpw cr7, r7, r10 /* Compare with byte from r4. */ - bne cr7, L(begin) - b L(loop2) - - .align 4 -L(shift8): - addi r8, r8, 7 - b L(begin) - .align 4 -L(shift16): - addi r8, r8, 15 - .align 4 -L(begin): - addi r8, r8, 1 - mr r3, r8 - /* When our iterations exceed ITERATIONS,fall back to default. */ - addi r27, r27, 1 - cmpdi cr7, r27, ITERATIONS - beq cr7, L(default) - mr r4, r30 /* Restore r4. */ - b L(begin2) - - /* Handling byte by byte. */ - .align 4 -L(loop1): - mr r3, r8 - addi r27, r27, 1 - cmpdi cr7, r27, ITERATIONS - beq cr7, L(default) - mr r29, r8 - srdi r4, r28, 8 - /* Check if the first char is present. */ - bl STRCHR - nop - mr r5, r3 - mr r3, r29 - mr r29, r5 - sldi r4, r28, 56 - srdi r4, r4, 56 - bl STRCHR - nop - cmpdi cr7, r29, 0 - beq cr7, L(nextpos) - cmpdi cr7, r3, 0 - beq cr7, L(skipcheck1) - cmpw cr7, r3, r29 - ble cr7, L(nextpos) - /* Move r3 to first occurrence. */ -L(skipcheck1): - mr r3, r29 -L(nextpos): - mr r29, r3 - cmpdi cr7, r3, 0 - ble cr7, L(retnull) -L(bytebybyte): - ld r10, __libc_tsd_LOCALE@got@tprel(r2) - add r11, r10, __libc_tsd_LOCALE@tls - ld r11, 0(r11) - ld r11, LOCALE_CTYPE_TOLOWER(r11) - mr r4, r30 /* Restore r4. */ - mr r8, r3 /* Save r3. */ - addi r8, r8, 1 - -L(loop): - addi r3, r3, 1 - lbz r5, 0(r3) /* Load byte from r3. */ - addi r4, r4, 1 /* Increment r4. */ - lbz r6, 0(r4) /* Load next byte from r4. */ - cmpdi cr7, r6, 0 /* Is it null? */ - beq cr7, L(updater3) - cmpdi cr7, r5, 0 /* Is it null? */ - beq cr7, L(retnull) /* If yes, return. */ - sldi r10, r5, 2 /* Convert to lower case. */ - lwzx r10, r11, r10 - sldi r7, r6, 2 /* Convert to lower case. */ - lwzx r7, r11, r7 - cmpw cr7, r7, r10 /* Compare with byte from r4. */ - bne cr7, L(loop1) - b L(loop) - - /* Handling return values. */ - .align 4 -L(updater3): - subf r3, r31, r3 /* Reduce r31 (len of r4) from r3. */ - b L(end) - - .align 4 -L(ret_r3): - mr r3, r29 /* Return point of match. */ - b L(end) - - .align 4 -L(retnull): - li r3, 0 /* Substring was not found. */ - b L(end) - - .align 4 -L(default): - mr r4, r30 - bl __strcasestr_ppc - nop - - .align 4 -L(end): - addi r1, r1, FRAMESIZE /* Restore stack pointer. */ - cfi_adjust_cfa_offset(-FRAMESIZE) - ld r0, 16(r1) /* Restore the saved link register. */ - ld r27, -40(r1) - ld r28, -32(r1) - ld r29, -24(r1) /* Restore callers save register r29. */ - ld r30, -16(r1) /* Restore callers save register r30. */ - ld r31, -8(r1) /* Restore callers save register r31. */ - cfi_restore(lr) - cfi_restore(r27) - cfi_restore(r28) - cfi_restore(r29) - cfi_restore(r30) - cfi_restore(r31) - mtlr r0 /* Branch to link register. */ - blr -END (STRCASESTR) - -weak_alias (__strcasestr, strcasestr) -libc_hidden_def (__strcasestr) -libc_hidden_builtin_def (strcasestr) |