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