diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/power7/strstr.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power7/strstr.S | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/sysdeps/powerpc/powerpc64/power7/strstr.S b/sysdeps/powerpc/powerpc64/power7/strstr.S index fefac1c9e5..ac92f9c517 100644 --- a/sysdeps/powerpc/powerpc64/power7/strstr.S +++ b/sysdeps/powerpc/powerpc64/power7/strstr.S @@ -1,5 +1,5 @@ /* Optimized strstr implementation for PowerPC64/POWER7. - Copyright (C) 2015-2016 Free Software Foundation, Inc. + Copyright (C) 2015-2018 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 @@ -25,11 +25,16 @@ #define ITERATIONS 64 +#ifndef STRSTR +# define STRSTR strstr +#endif + #ifndef STRLEN /* For builds with no IFUNC support, local calls should be made to internal GLIBC symbol (created by libc_hidden_builtin_def). */ # ifdef SHARED # define STRLEN __GI_strlen +# define STRLEN_is_local # else # define STRLEN strlen # endif @@ -40,6 +45,7 @@ GLIBC symbol (created by libc_hidden_builtin_def). */ # ifdef SHARED # define STRNLEN __GI_strnlen +# define STRNLEN_is_local # else # define STRNLEN __strnlen # endif @@ -48,6 +54,7 @@ #ifndef STRCHR # ifdef SHARED # define STRCHR __GI_strchr +# define STRCHR_is_local # else # define STRCHR strchr # endif @@ -55,18 +62,19 @@ #define FRAMESIZE (FRAME_MIN_SIZE+32) .machine power7 -EALIGN (strstr, 4, 0) +/* Can't be ENTRY_TOCLESS due to calling __strstr_ppc which uses r2. */ +ENTRY (STRSTR, 4) CALL_MCOUNT 2 mflr r0 /* Load link register LR to r0. */ std r31, -8(r1) /* Save callers register r31. */ - cfi_offset(r31, -8) std r30, -16(r1) /* Save callers register r30. */ - cfi_offset(r30, -16) std r29, -24(r1) /* Save callers register r29. */ - cfi_offset(r29, -24) std r28, -32(r1) /* Save callers register r28. */ - cfi_offset(r28, -32) std r0, 16(r1) /* Store the link register. */ + cfi_offset(r31, -8) + cfi_offset(r30, -16) + cfi_offset(r28, -32) + cfi_offset(r29, -24) cfi_offset(lr, 16) stdu r1, -FRAMESIZE(r1) /* Create the stack frame. */ cfi_adjust_cfa_offset(FRAMESIZE) @@ -82,7 +90,9 @@ EALIGN (strstr, 4, 0) mr r30, r4 mr r3, r4 bl STRLEN +#ifndef STRLEN_is_local nop +#endif cmpdi cr7, r3, 0 /* If search str is null. */ beq cr7, L(ret_r3) @@ -91,14 +101,18 @@ EALIGN (strstr, 4, 0) mr r4, r3 mr r3, r29 bl STRNLEN +#ifndef STRNLEN_is_local nop +#endif cmpd cr7, r3, r31 /* If len(r3) < len(r4). */ blt cr7, L(retnull) mr r3, r29 lbz r4, 0(r30) bl STRCHR +#ifndef STRCHR_is_local nop +#endif mr r11, r3 /* If first char of search str is not present. */ @@ -330,7 +344,9 @@ L(begin): beq cr7, L(default) lbz r4, 0(r30) bl STRCHR +#ifndef STRCHR_is_local nop +#endif /* If first char of search str is not present. */ cmpdi cr7, r3, 0 ble cr7, L(end) @@ -433,7 +449,9 @@ L(nextbyte): beq cr7, L(default) lbz r4, 0(r30) bl STRCHR +#ifndef STRCHR_is_local nop +#endif /* If first char of search str is not present. */ cmpdi cr7, r3, 0 ble cr7, L(end) @@ -513,5 +531,5 @@ L(end): ld r31, -8(r1) /* Restore callers save register r31. */ mtlr r0 /* Branch to link register. */ blr -END (strstr) +END (STRSTR) libc_hidden_builtin_def (strstr) |