diff options
Diffstat (limited to 'arch/x86/include/asm/setjmp.h')
| -rw-r--r-- | arch/x86/include/asm/setjmp.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/x86/include/asm/setjmp.h b/arch/x86/include/asm/setjmp.h new file mode 100644 index 0000000000..5af5e62489 --- /dev/null +++ b/arch/x86/include/asm/setjmp.h @@ -0,0 +1,44 @@ +/* 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 |