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-rw-r--r--sysdeps/i386/i686/multiarch/Makefile11
-rw-r--r--sysdeps/i386/i686/multiarch/strcasestr-c.c2
-rw-r--r--sysdeps/i386/i686/multiarch/strcasestr.c1
-rw-r--r--sysdeps/i386/i686/multiarch/strcspn-c.c2
-rw-r--r--sysdeps/i386/i686/multiarch/strcspn.S114
-rw-r--r--sysdeps/i386/i686/multiarch/strlen.S154
-rw-r--r--sysdeps/i386/i686/multiarch/strpbrk-c.c2
-rw-r--r--sysdeps/i386/i686/multiarch/strpbrk.S3
-rw-r--r--sysdeps/i386/i686/multiarch/strspn-c.c2
-rw-r--r--sysdeps/i386/i686/multiarch/strspn.S95
-rw-r--r--sysdeps/i386/i686/multiarch/strstr-c.c12
-rw-r--r--sysdeps/i386/i686/multiarch/strstr.c1
12 files changed, 399 insertions, 0 deletions
diff --git a/sysdeps/i386/i686/multiarch/Makefile b/sysdeps/i386/i686/multiarch/Makefile
index 33d98c36e6..e1553b284e 100644
--- a/sysdeps/i386/i686/multiarch/Makefile
+++ b/sysdeps/i386/i686/multiarch/Makefile
@@ -2,3 +2,14 @@ ifeq ($(subdir),csu)
aux += init-arch
gen-as-const-headers += ifunc-defines.sym
endif
+
+ifeq ($(subdir),string)
+ifeq (yes,$(config-cflags-sse4))
+sysdep_routines += strcspn-c strpbrk-c strspn-c strstr-c strcasestr-c
+CFLAGS-strcspn-c.c += -msse4
+CFLAGS-strpbrk-c.c += -msse4
+CFLAGS-strspn-c.c += -msse4
+CFLAGS-strstr.c += -msse4
+CFLAGS-strcasestr.c += -msse4
+endif
+endif
diff --git a/sysdeps/i386/i686/multiarch/strcasestr-c.c b/sysdeps/i386/i686/multiarch/strcasestr-c.c
new file mode 100644
index 0000000000..0d52b0e47a
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strcasestr-c.c
@@ -0,0 +1,2 @@
+#define __strcasestr_sse2 __strcasestr_ia32
+#include <sysdeps/x86_64/multiarch/strcasestr-c.c>
diff --git a/sysdeps/i386/i686/multiarch/strcasestr.c b/sysdeps/i386/i686/multiarch/strcasestr.c
new file mode 100644
index 0000000000..511bb29ede
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strcasestr.c
@@ -0,0 +1 @@
+#include <sysdeps/x86_64/multiarch/strcasestr.c>
diff --git a/sysdeps/i386/i686/multiarch/strcspn-c.c b/sysdeps/i386/i686/multiarch/strcspn-c.c
new file mode 100644
index 0000000000..6d61e190a8
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strcspn-c.c
@@ -0,0 +1,2 @@
+#define __strcspn_sse2 __strcspn_ia32
+#include <sysdeps/x86_64/multiarch/strcspn-c.c>
diff --git a/sysdeps/i386/i686/multiarch/strcspn.S b/sysdeps/i386/i686/multiarch/strcspn.S
new file mode 100644
index 0000000000..73e7eb45a8
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strcspn.S
@@ -0,0 +1,114 @@
+/* Multiple versions of strcspn
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+
+#ifdef HAVE_SSE4_SUPPORT
+
+#include <sysdep.h>
+#include <ifunc-defines.h>
+
+#ifdef USE_AS_STRPBRK
+#define STRCSPN_SSE42 __strpbrk_sse42
+#define STRCSPN_IA32 __strpbrk_ia32
+#define __GI_STRCSPN __GI_strpbrk
+#else
+#ifndef STRCSPN
+#define STRCSPN strcspn
+#define STRCSPN_SSE42 __strcspn_sse42
+#define STRCSPN_IA32 __strcspn_ia32
+#define __GI_STRCSPN __GI_strcspn
+#endif
+#endif
+
+/* Define multiple versions only for the definition in libc. Don't
+ define multiple versions for strpbrk in static library since we
+ need strpbrk before the initialization happened. */
+#if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
+# ifdef SHARED
+ .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+ .p2align 4
+ .type __i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+ movl (%esp), %ebx
+ ret
+
+ .text
+ENTRY(STRCSPN)
+ .type STRCSPN, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal STRCSPN_IA32@GOTOFF(%ebx), %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal STRCSPN_SSE42@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4);
+ cfi_restore (ebx)
+ ret
+END(STRCSPN)
+# else
+ .text
+ENTRY(STRCSPN)
+ .type STRCSPN, @gnu_indirect_function
+ cmpl $0, KIND_OFFSET+__cpu_features
+ jne 1f
+ call __init_cpu_features
+1: leal STRCSPN_IA32, %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features
+ jz 2f
+ leal STRCSPN_SSE42, %eax
+2: ret
+END(STRCSPN)
+# endif
+
+# undef ENTRY
+# define ENTRY(name) \
+ .type STRCSPN_IA32, @function; \
+ .globl STRCSPN_IA32; \
+ .p2align 4; \
+ STRCSPN_IA32: cfi_startproc; \
+ CALL_MCOUNT
+# undef END
+# define END(name) \
+ cfi_endproc; .size STRCSPN_IA32, .-STRCSPN_IA32
+# undef libc_hidden_builtin_def
+/* IFUNC doesn't work with the hidden functions in shared library since
+ they will be called without setting up EBX needed for PLT which is
+ used by IFUNC. */
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_STRCSPN; __GI_STRCSPN = STRCSPN_IA32
+#endif
+
+#endif /* HAVE_SSE4_SUPPORT */
+
+#ifdef USE_AS_STRPBRK
+#include "../../strpbrk.S"
+#else
+#include "../../strcspn.S"
+#endif
diff --git a/sysdeps/i386/i686/multiarch/strlen.S b/sysdeps/i386/i686/multiarch/strlen.S
new file mode 100644
index 0000000000..0c1e8646ff
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strlen.S
@@ -0,0 +1,154 @@
+/* Multiple versions of strlen
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <ifunc-defines.h>
+
+/* Define multiple versions only for the definition in libc and for the
+ DSO. In static binaries, we need strlen before the initialization
+ happened. */
+#if defined SHARED && !defined NOT_IN_libc
+ .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+ .p2align 4
+ .type __i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+ movl (%esp), %ebx
+ ret
+
+ .text
+ENTRY(strlen)
+ .type strlen, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal __strlen_ia32@GOTOFF(%ebx), %eax
+ testl $(1<<26), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_EDX_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal __strlen_sse2@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4);
+ cfi_restore (ebx)
+ ret
+END(strlen)
+
+#define CFI_POP(REG) \
+ cfi_adjust_cfa_offset (-4); \
+ cfi_restore (REG)
+
+#define RETURN popl %esi; CFI_POP (esi); ret
+
+ .text
+ENTRY (__strlen_sse2)
+/*
+ * This implementation uses SSE instructions to compare up to 16 bytes
+ * at a time looking for the end of string (null char).
+ */
+ pushl %esi
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (%esi, 0)
+ mov 8(%esp), %eax
+ mov %eax, %ecx
+ pxor %xmm0, %xmm0 /* 16 null chars */
+ mov %eax, %esi
+ and $15, %ecx
+ jz 1f /* string is 16 byte aligned */
+
+ /*
+ * Unaligned case. Round down to 16-byte boundary before comparing
+ * 16 bytes for a null char. The code then compensates for any extra chars
+ * preceding the start of the string.
+ */
+ and $-16, %esi
+
+ pcmpeqb (%esi), %xmm0
+ lea 16(%eax), %esi
+ pmovmskb %xmm0, %edx
+
+ shr %cl, %edx /* Compensate for bytes preceding the string */
+ test %edx, %edx
+ jnz 2f
+ sub %ecx, %esi /* no null, adjust to next 16-byte boundary */
+ pxor %xmm0, %xmm0 /* clear xmm0, may have been changed... */
+
+ .p2align 4
+1: /* 16 byte aligned */
+ pcmpeqb (%esi), %xmm0 /* look for null bytes */
+ pmovmskb %xmm0, %edx /* move each byte mask of %xmm0 to edx */
+
+ add $16, %esi /* prepare to search next 16 bytes */
+ test %edx, %edx /* if no null byte, %edx must be 0 */
+ jnz 2f /* found a null */
+
+ pcmpeqb (%esi), %xmm0
+ pmovmskb %xmm0, %edx
+ add $16, %esi
+ test %edx, %edx
+ jnz 2f
+
+ pcmpeqb (%esi), %xmm0
+ pmovmskb %xmm0, %edx
+ add $16, %esi
+ test %edx, %edx
+ jnz 2f
+
+ pcmpeqb (%esi), %xmm0
+ pmovmskb %xmm0, %edx
+ add $16, %esi
+ test %edx, %edx
+ jz 1b
+
+2:
+ neg %eax
+ lea -16(%eax, %esi), %eax /* calculate exact offset */
+ bsf %edx, %ecx /* Least significant 1 bit is index of null */
+ add %ecx, %eax
+ popl %esi
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (%esi)
+ ret
+
+END (__strlen_sse2)
+
+# undef ENTRY
+# define ENTRY(name) \
+ .type __strlen_ia32, @function; \
+ .globl __strlen_ia32; \
+ .p2align 4; \
+ __strlen_ia32: cfi_startproc; \
+ CALL_MCOUNT
+# undef END
+# define END(name) \
+ cfi_endproc; .size __strlen_ia32, .-__strlen_ia32
+# undef libc_hidden_builtin_def
+/* IFUNC doesn't work with the hidden functions in shared library since
+ they will be called without setting up EBX needed for PLT which is
+ used by IFUNC. */
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strlen; __GI_strlen = __strlen_ia32
+#endif
+
+#include "../../i586/strlen.S"
diff --git a/sysdeps/i386/i686/multiarch/strpbrk-c.c b/sysdeps/i386/i686/multiarch/strpbrk-c.c
new file mode 100644
index 0000000000..5db62053b3
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strpbrk-c.c
@@ -0,0 +1,2 @@
+#define __strpbrk_sse2 __strpbrk_ia32
+#include <sysdeps/x86_64/multiarch/strpbrk-c.c>
diff --git a/sysdeps/i386/i686/multiarch/strpbrk.S b/sysdeps/i386/i686/multiarch/strpbrk.S
new file mode 100644
index 0000000000..ed5bca6a94
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strpbrk.S
@@ -0,0 +1,3 @@
+#define STRCSPN strpbrk
+#define USE_AS_STRPBRK
+#include "strcspn.S"
diff --git a/sysdeps/i386/i686/multiarch/strspn-c.c b/sysdeps/i386/i686/multiarch/strspn-c.c
new file mode 100644
index 0000000000..bea09dea71
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strspn-c.c
@@ -0,0 +1,2 @@
+#define __strspn_sse2 __strspn_ia32
+#include <sysdeps/x86_64/multiarch/strspn-c.c>
diff --git a/sysdeps/i386/i686/multiarch/strspn.S b/sysdeps/i386/i686/multiarch/strspn.S
new file mode 100644
index 0000000000..f306d2d1fb
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strspn.S
@@ -0,0 +1,95 @@
+/* Multiple versions of strspn
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+
+#ifdef HAVE_SSE4_SUPPORT
+
+#include <sysdep.h>
+#include <ifunc-defines.h>
+
+/* Define multiple versions only for the definition in libc. */
+#ifndef NOT_IN_libc
+# ifdef SHARED
+ .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+ .p2align 4
+ .type __i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+ movl (%esp), %ebx
+ ret
+
+ .text
+ENTRY(strspn)
+ .type strspn, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal __strspn_ia32@GOTOFF(%ebx), %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal __strspn_sse42@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4);
+ cfi_restore (ebx)
+ ret
+END(strspn)
+# else
+ .text
+ENTRY(strspn)
+ .type strspn, @gnu_indirect_function
+ cmpl $0, KIND_OFFSET+__cpu_features
+ jne 1f
+ call __init_cpu_features
+1: leal __strspn_ia32, %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features
+ jz 2f
+ leal __strspn_sse42, %eax
+2: ret
+END(strspn)
+# endif
+
+# undef ENTRY
+# define ENTRY(name) \
+ .type __strspn_ia32, @function; \
+ .globl __strspn_ia32; \
+ .p2align 4
+ __strspn_ia32: cfi_startproc; \
+ CALL_MCOUNT
+# undef END
+# define END(name) \
+ cfi_endproc; .size __strspn_ia32, .-__strspn_ia32
+# undef libc_hidden_builtin_def
+/* IFUNC doesn't work with the hidden functions in shared library since
+ they will be called without setting up EBX needed for PLT which is
+ used by IFUNC. */
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strspn; __GI_strspn = __strspn_ia32
+#endif
+
+#endif /* HAVE_SSE4_SUPPORT */
+
+#include "../../strspn.S"
diff --git a/sysdeps/i386/i686/multiarch/strstr-c.c b/sysdeps/i386/i686/multiarch/strstr-c.c
new file mode 100644
index 0000000000..7ef1157ce4
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strstr-c.c
@@ -0,0 +1,12 @@
+#include "init-arch.h"
+
+#define STRSTR __strstr_ia32
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name) \
+ __hidden_ver1 (__strstr_ia32, __GI_strstr, __strstr_ia32);
+
+#include "string/strstr.c"
+
+extern char *__strstr_sse42 (const char *, const char *);
+
+libc_ifunc (strstr, HAS_SSE4_2 ? __strstr_sse42 : __strstr_ia32);
diff --git a/sysdeps/i386/i686/multiarch/strstr.c b/sysdeps/i386/i686/multiarch/strstr.c
new file mode 100644
index 0000000000..a97428c125
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/strstr.c
@@ -0,0 +1 @@
+#include <sysdeps/x86_64/multiarch/strstr.c>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-26 07:19:04 +0000