1/* SPDX-License-Identifier: GPL-2.0 */ 2 3#if __alpha__ 4register unsigned long sp asm("$30"); 5#elif __arm__ || __aarch64__ || __csky__ || __m68k__ || __mips__ || __riscv 6register unsigned long sp asm("sp"); 7#elif __i386__ 8register unsigned long sp asm("esp"); 9#elif __loongarch64 10register unsigned long sp asm("$sp"); 11#elif __ppc__ 12register unsigned long sp asm("r1"); 13#elif __s390x__ 14register unsigned long sp asm("%15"); 15#elif __sh__ 16register unsigned long sp asm("r15"); 17#elif __x86_64__ 18register unsigned long sp asm("rsp"); 19#elif __XTENSA__ 20register unsigned long sp asm("a1"); 21#else 22#error "implement current_stack_pointer equivalent" 23#endif 24