tools/testing/selftests/sigaltstack/current_stack_pointer.h

   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