31 lines
691 B
C
31 lines
691 B
C
#ifndef __LIB_SETJMP_H__
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# define __LIB_SETJMP_H__
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#include <stddef.h>
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#include <stdint.h>
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// Real jmp_buf struct
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// @note: save only r8 ~ r15 and SR / PC registers
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// The SR register is saved first because the longjump can be involved with
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// differentregister bank. So to avoid this it's more simple to restore the
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// saved SR first then restore all register (see <lib/libc/setjmp/longjmp.S>)
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struct __jmp_buf
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{
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uint32_t sr;
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uint32_t reg[8];
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uint32_t gbr;
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uint32_t macl;
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uint32_t mach;
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uint32_t pr;
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};
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// User jmp_buf alias
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typedef struct __jmp_buf jmp_buf[1];
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// Functions
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extern int setjmp(jmp_buf env);
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extern void longjmp(jmp_buf env, int val);
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#endif /*__LIB_SETJMP_H__*/
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