Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) char *strstr(const char *cs, const char *ct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) int	d0, d1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) register char *__res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) __asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	"movl %6,%%edi\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	"repne\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	"scasb\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	"notl %%ecx\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	"decl %%ecx\n\t"	/* NOTE! This also sets Z if searchstring='' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	"movl %%ecx,%%edx\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	"1:\tmovl %6,%%edi\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	"movl %%esi,%%eax\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	"movl %%edx,%%ecx\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	"repe\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	"cmpsb\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	"je 2f\n\t"		/* also works for empty string, see above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	"xchgl %%eax,%%esi\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	"incl %%esi\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	"cmpb $0,-1(%%eax)\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	"jne 1b\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	"xorl %%eax,%%eax\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	"2:"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	: "=a" (__res), "=&c" (d0), "=&S" (d1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	: "0" (0), "1" (0xffffffff), "2" (cs), "g" (ct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	: "dx", "di");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return __res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) EXPORT_SYMBOL(strstr);