[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/sysdeps/i386/strtok.S b/ap/libc/glibc/glibc-2.22/sysdeps/i386/strtok.S
new file mode 100644
index 0000000..b5f5f92
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/sysdeps/i386/strtok.S
@@ -0,0 +1,358 @@
+/* strtok (str, delim) -- Return next DELIM separated token from STR.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1996-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+ 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>
+#include "asm-syntax.h"
+
+/* This file can be used for three variants of the strtok function:
+
+ strtok:
+ INPUT PARAMETER:
+ str (sp + 4)
+ delim (sp + 8)
+
+ strtok_r:
+ INPUT PARAMETER:
+ str (sp + 4)
+ delim (sp + 8)
+ save_ptr (sp + 12)
+
+ We do a common implementation here. */
+
+#ifdef USE_AS_STRTOK_R
+# define SAVE_PTR 0(%ecx)
+#else
+ .bss
+ .local save_ptr
+ .type save_ptr, @object
+ .size save_ptr, 4
+save_ptr:
+ .space 4
+
+# ifdef PIC
+# define SAVE_PTR save_ptr@GOTOFF(%ebx)
+# else
+# define SAVE_PTR save_ptr
+# endif
+
+# define FUNCTION strtok
+#endif
+
+#define PARMS 4 /* no space for saved regs */
+#define RTN PARMS
+#define STR RTN
+#define DELIM STR+4
+#define SAVE DELIM+4
+
+ .text
+ENTRY (FUNCTION)
+
+ movl STR(%esp), %edx
+ movl DELIM(%esp), %eax
+
+#if !defined USE_AS_STRTOK_R && defined PIC
+ pushl %ebx /* Save PIC register. */
+ cfi_adjust_cfa_offset (4)
+ call L(here)
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+L(here):
+ popl %ebx
+ cfi_adjust_cfa_offset (-4)
+ addl $_GLOBAL_OFFSET_TABLE_+[.-L(here)], %ebx
+#endif
+
+ /* If the pointer is NULL we have to use the stored value of
+ the last run. */
+ cmpl $0, %edx
+ jne L(1)
+
+#ifdef USE_AS_STRTOK_R
+ /* The value is stored in the third argument. */
+ movl SAVE(%esp), %edx
+ movl (%edx), %edx
+#else
+ /* The value is in the local variable defined above. But
+ we have to take care for PIC code. */
+ movl SAVE_PTR, %edx
+#endif
+ testl %edx, %edx
+ jz L(returnNULL)
+
+L(1):
+ /* First we create a table with flags for all possible characters.
+ For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
+ supported by the C string functions we have 256 characters.
+ Before inserting marks for the stop characters we clear the whole
+ table. The unrolled form is much faster than a loop. */
+ xorl %ecx, %ecx /* %ecx = 0 !!! */
+
+ pushl %ecx /* make a 256 bytes long block filled with 0 */
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl %ecx
+ cfi_adjust_cfa_offset (4)
+ pushl $0 /* These immediate values make the label 2 */
+ cfi_adjust_cfa_offset (4)
+ pushl $0 /* to be aligned on a 16 byte boundary to */
+ cfi_adjust_cfa_offset (4)
+ pushl $0 /* get a better performance of the loop. */
+ cfi_adjust_cfa_offset (4)
+ pushl $0
+ cfi_adjust_cfa_offset (4)
+ pushl $0
+ cfi_adjust_cfa_offset (4)
+ pushl $0
+ cfi_adjust_cfa_offset (4)
+
+/* For understanding the following code remember that %ecx == 0 now.
+ Although all the following instruction only modify %cl we always
+ have a correct zero-extended 32-bit value in %ecx. */
+
+L(2): movb (%eax), %cl /* get byte from stopset */
+ testb %cl, %cl /* is NUL char? */
+ jz L(1_1) /* yes => start compare loop */
+ movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
+
+ movb 1(%eax), %cl /* get byte from stopset */
+ testb $0xff, %cl /* is NUL char? */
+ jz L(1_1) /* yes => start compare loop */
+ movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
+
+ movb 2(%eax), %cl /* get byte from stopset */
+ testb $0xff, %cl /* is NUL char? */
+ jz L(1_1) /* yes => start compare loop */
+ movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
+
+ movb 3(%eax), %cl /* get byte from stopset */
+ addl $4, %eax /* increment stopset pointer */
+ movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
+ testb $0xff, %cl /* is NUL char? */
+ jnz L(2) /* no => process next dword from stopset */
+
+L(1_1): leal -4(%edx), %eax /* prepare loop */
+
+ /* We use a neat trick for the following loop. Normally we would
+ have to test for two termination conditions
+ 1. a character in the stopset was found
+ and
+ 2. the end of the string was found
+ As a sign that the character is in the stopset we store its
+ value in the table. The value of NUL is NUL so the loop
+ terminates for NUL in every case. */
+
+L(3): addl $4, %eax /* adjust pointer for full loop round */
+
+ movb (%eax), %cl /* get byte from string */
+ testb %cl, (%esp,%ecx) /* is it contained in stopset? */
+ jz L(4) /* no => start of token */
+
+ movb 1(%eax), %cl /* get byte from string */
+ testb %cl, (%esp,%ecx) /* is it contained in stopset? */
+ jz L(5) /* no => start of token */
+
+ movb 2(%eax), %cl /* get byte from string */
+ testb %cl, (%esp,%ecx) /* is it contained in stopset? */
+ jz L(6) /* no => start of token */
+
+ movb 3(%eax), %cl /* get byte from string */
+ testb %cl, (%esp,%ecx) /* is it contained in stopset? */
+ jnz L(3) /* yes => start of loop */
+
+ incl %eax /* adjust pointer */
+L(6): incl %eax
+L(5): incl %eax
+
+ /* Now we have to terminate the string. */
+
+L(4): leal -4(%eax), %edx /* We use %EDX for the next run. */
+
+L(7): addl $4, %edx /* adjust pointer for full loop round */
+
+ movb (%edx), %cl /* get byte from string */
+ cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
+ je L(8) /* yes => return */
+
+ movb 1(%edx), %cl /* get byte from string */
+ cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
+ je L(9) /* yes => return */
+
+ movb 2(%edx), %cl /* get byte from string */
+ cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
+ je L(10) /* yes => return */
+
+ movb 3(%edx), %cl /* get byte from string */
+ cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
+ jne L(7) /* no => start loop again */
+
+ incl %edx /* adjust pointer */
+L(10): incl %edx
+L(9): incl %edx
+
+L(8): /* Remove the stopset table. */
+ addl $256, %esp
+ cfi_adjust_cfa_offset (-256)
+
+ cmpl %eax, %edx
+ je L(returnNULL) /* There was no token anymore. */
+
+ movb $0, (%edx) /* Terminate string. */
+
+ /* Are we at end of string? */
+ cmpb $0, %cl
+ je L(11)
+
+ incl %edx
+L(11):
+
+ /* Store the pointer to the next character. */
+#ifdef USE_AS_STRTOK_R
+ movl SAVE(%esp), %ecx
+#endif
+ movl %edx, SAVE_PTR
+
+L(epilogue):
+#if !defined USE_AS_STRTOK_R && defined PIC
+ popl %ebx
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebx)
+#endif
+ ret
+
+L(returnNULL):
+ xorl %eax, %eax
+#ifdef USE_AS_STRTOK_R
+ movl SAVE(%esp), %ecx
+#endif
+ movl %edx, SAVE_PTR
+ jmp L(epilogue)
+
+END (FUNCTION)