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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Written by H. Peter Anvin <hpa@zytor.com>
* Brought in from Linux v4.4 and modified for U-Boot
* From Linux arch/um/sys-i386/setjmp.S
*/
#ifndef __setjmp_h
#define __setjmp_h
#include <linux/compiler.h>
struct jmp_buf_data {
#if defined CONFIG_X86_64
#define __sjlj_attr
unsigned long __rip;
unsigned long __rsp;
unsigned long __rbp;
unsigned long __rbx;
unsigned long __r12;
unsigned long __r13;
unsigned long __r14;
unsigned long __r15;
#elif defined CONFIG_X86_32
#define __sjlj_attr __attribute__((regparm(3)))
unsigned int __ebx;
unsigned int __esp;
unsigned int __ebp;
unsigned int __esi;
unsigned int __edi;
unsigned int __eip;
#else
#error "Unsupported configuration"
#endif
};
typedef struct jmp_buf_data jmp_buf[1];
int setjmp(jmp_buf jmp) __attribute__((returns_twice)) __sjlj_attr;
void longjmp(jmp_buf jmp, int ret) __attribute__((noreturn)) __sjlj_attr;
int initjmp(jmp_buf jmp, void __attribute__((noreturn)) (*func)(void), void *stack_top) __sjlj_attr;
#endif
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